<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.chart-ind.com/20180930" xmlns:gtls="http://www.chart-ind.com/20180930" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/us-gaap/2017-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2017-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2017/elts/us-roles-2017-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2017-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2017/elts/us-types-2017-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2017-01-31" schemaLocation="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2017-01-31" schemaLocation="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2017-01-31" schemaLocation="http://xbrl.sec.gov/exch/2017/exch-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2017-01-31" schemaLocation="http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gtls-20180930_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gtls-20180930_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gtls-20180930_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gtls-20180930_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="AccumulatedOtherComprehensiveLoss" roleURI="http://www.chart-ind.com/role/AccumulatedOtherComprehensiveLoss">
        <link:definition>2138100 - Disclosure - Accumulated Other Comprehensive Loss</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveLossDetails" roleURI="http://www.chart-ind.com/role/AccumulatedOtherComprehensiveLossDetails">
        <link:definition>2438402 - Disclosure - Accumulated Other Comprehensive Loss (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveLossTables" roleURI="http://www.chart-ind.com/role/AccumulatedOtherComprehensiveLossTables">
        <link:definition>2338301 - Disclosure - Accumulated Other Comprehensive Loss (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BasisOfPreparation" roleURI="http://www.chart-ind.com/role/BasisOfPreparation">
        <link:definition>2104100 - Disclosure - Basis of Preparation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BasisOfPreparationBalanceSheetImpactDetails" roleURI="http://www.chart-ind.com/role/BasisOfPreparationBalanceSheetImpactDetails">
        <link:definition>2404403 - Disclosure - Basis of Preparation - Balance Sheet Impact (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BasisOfPreparationIncomeStatementImpactDetails" roleURI="http://www.chart-ind.com/role/BasisOfPreparationIncomeStatementImpactDetails">
        <link:definition>2404404 - Disclosure - Basis of Preparation - Income Statement Impact (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BasisOfPreparationPolicies" roleURI="http://www.chart-ind.com/role/BasisOfPreparationPolicies">
        <link:definition>2204201 - Disclosure - Basis of Preparation (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BasisOfPreparationTables" roleURI="http://www.chart-ind.com/role/BasisOfPreparationTables">
        <link:definition>2304302 - Disclosure - Basis of Preparation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinations" roleURI="http://www.chart-ind.com/role/BusinessCombinations">
        <link:definition>2136100 - Disclosure - Business Combinations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsContingentConsiderationDetails" roleURI="http://www.chart-ind.com/role/BusinessCombinationsContingentConsiderationDetails">
        <link:definition>2436410 - Disclosure - Business Combinations - Contingent Consideration (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsHetscoAcquisitionDetails" roleURI="http://www.chart-ind.com/role/BusinessCombinationsHetscoAcquisitionDetails">
        <link:definition>2436409 - Disclosure - Business Combinations - Hetsco Acquisition (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsHudsonIntangibleAssetsAcquiredDetails" roleURI="http://www.chart-ind.com/role/BusinessCombinationsHudsonIntangibleAssetsAcquiredDetails">
        <link:definition>2436406 - Disclosure - Business Combinations - Hudson Intangible Assets Acquired (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsHudsonNarrativesDetails" roleURI="http://www.chart-ind.com/role/BusinessCombinationsHudsonNarrativesDetails">
        <link:definition>2436404 - Disclosure - Business Combinations - Hudson Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsHudsonSupplementalProFormaInformationDetails" roleURI="http://www.chart-ind.com/role/BusinessCombinationsHudsonSupplementalProFormaInformationDetails">
        <link:definition>2436407 - Disclosure - Business Combinations - Hudson Supplemental Pro Forma Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsScheduleOfNetAssetsAcquiredDetails" roleURI="http://www.chart-ind.com/role/BusinessCombinationsScheduleOfNetAssetsAcquiredDetails">
        <link:definition>2436405 - Disclosure - Business Combinations - Schedule of Net Assets Acquired (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsSkaffNarrativesDetails" roleURI="http://www.chart-ind.com/role/BusinessCombinationsSkaffNarrativesDetails">
        <link:definition>2436403 - Disclosure - Business Combinations - Skaff Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsTables" roleURI="http://www.chart-ind.com/role/BusinessCombinationsTables">
        <link:definition>2336301 - Disclosure - Business Combinations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsVctVogelGmbhDetails" roleURI="http://www.chart-ind.com/role/BusinessCombinationsVctVogelGmbhDetails">
        <link:definition>2436408 - Disclosure - Business Combinations - VCT Vogel GmbH (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsVrvDetails" roleURI="http://www.chart-ind.com/role/BusinessCombinationsVrvDetails">
        <link:definition>2436402 - Disclosure - Business Combinations - VRV (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentAndContingencies" roleURI="http://www.chart-ind.com/role/CommitmentAndContingencies">
        <link:definition>2144100 - Disclosure - Commitment and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentAndContingenciesNarrativesDetails" roleURI="http://www.chart-ind.com/role/CommitmentAndContingenciesNarrativesDetails">
        <link:definition>2444402 - Disclosure - Commitment and Contingencies - Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentAndContingenciesRollforwardDetails" roleURI="http://www.chart-ind.com/role/CommitmentAndContingenciesRollforwardDetails">
        <link:definition>2444403 - Disclosure - Commitment and Contingencies - Rollforward (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentAndContingenciesTables" roleURI="http://www.chart-ind.com/role/CommitmentAndContingenciesTables">
        <link:definition>2344301 - Disclosure - Commitment and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheetsUnaudited" roleURI="http://www.chart-ind.com/role/CondensedConsolidatedBalanceSheetsUnaudited">
        <link:definition>1001000 - Statement - Condensed Consolidated Balance Sheets (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheetsUnauditedParentheticals" roleURI="http://www.chart-ind.com/role/CondensedConsolidatedBalanceSheetsUnauditedParentheticals">
        <link:definition>1001001 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsOfCashFlowsUnaudited" roleURI="http://www.chart-ind.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited">
        <link:definition>1003000 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsOfCashFlowsUnauditedParentheticals" roleURI="http://www.chart-ind.com/role/CondensedConsolidatedStatementsOfCashFlowsUnauditedParentheticals">
        <link:definition>1003001 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsOfOperationsAndComprehensiveIncomeUnaudited" roleURI="http://www.chart-ind.com/role/CondensedConsolidatedStatementsOfOperationsAndComprehensiveIncomeUnaudited">
        <link:definition>1002000 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsOfOperationsAndComprehensiveIncomeUnauditedCalc2" roleURI="http://www.chart-ind.com/role/CondensedConsolidatedStatementsOfOperationsAndComprehensiveIncomeUnauditedCalc2">
        <link:definition>1002000 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangements" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangements">
        <link:definition>2134100 - Disclosure - Debt and Credit Arrangements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangements2018NotesDetails" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangements2018NotesDetails">
        <link:definition>2434404 - Disclosure - Debt and Credit Arrangements - 2018 Notes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangements2024NotesNarrativesDetails" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangements2024NotesNarrativesDetails">
        <link:definition>2434403 - Disclosure - Debt and Credit Arrangements - 2024 Notes Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangementsFairValueDisclosuresAboutDebtDetails" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangementsFairValueDisclosuresAboutDebtDetails">
        <link:definition>2434409 - Disclosure - Debt and Credit Arrangements - Fair Value Disclosures about Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangementsForeignFacilitiesDetails" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangementsForeignFacilitiesDetails">
        <link:definition>2434407 - Disclosure - Debt and Credit Arrangements - Foreign Facilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangementsLettersOfCreditDetails" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangementsLettersOfCreditDetails">
        <link:definition>2434408 - Disclosure - Debt and Credit Arrangements - Letters of Credit (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangementsNotesInterestAccretionScheduleDetails" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangementsNotesInterestAccretionScheduleDetails">
        <link:definition>2434405 - Disclosure - Debt and Credit Arrangements - Notes Interest Accretion Schedule (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangementsSeniorSecuredRevolvingCreditFacilityDetails" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangementsSeniorSecuredRevolvingCreditFacilityDetails">
        <link:definition>2434406 - Disclosure - Debt and Credit Arrangements - Senior Secured Revolving Credit Facility (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangementsSummaryOfOutstandingBorrowingsDetails" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangementsSummaryOfOutstandingBorrowingsDetails">
        <link:definition>2434402 - Disclosure - Debt and Credit Arrangements - Summary of Outstanding Borrowings (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCreditArrangementsTables" roleURI="http://www.chart-ind.com/role/DebtAndCreditArrangementsTables">
        <link:definition>2334301 - Disclosure - Debt and Credit Arrangements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperations" roleURI="http://www.chart-ind.com/role/DiscontinuedOperations">
        <link:definition>2110100 - Disclosure - Discontinued Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperationsAssetsAndLiabilitiesFromDiscontinuedOperationsDetails" roleURI="http://www.chart-ind.com/role/DiscontinuedOperationsAssetsAndLiabilitiesFromDiscontinuedOperationsDetails">
        <link:definition>2410404 - Disclosure - Discontinued Operations - Assets and Liabilities from Discontinued Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperationsIncomeFromDiscontinuedOperationsDetails" roleURI="http://www.chart-ind.com/role/DiscontinuedOperationsIncomeFromDiscontinuedOperationsDetails">
        <link:definition>2410403 - Disclosure - Discontinued Operations - Income from Discontinued Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperationsNarrativesDetails" roleURI="http://www.chart-ind.com/role/DiscontinuedOperationsNarrativesDetails">
        <link:definition>2410402 - Disclosure - Discontinued Operations - Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DiscontinuedOperationsTables" roleURI="http://www.chart-ind.com/role/DiscontinuedOperationsTables">
        <link:definition>2310301 - Disclosure - Discontinued Operations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DocumentAndEntityInformation" roleURI="http://www.chart-ind.com/role/DocumentAndEntityInformation">
        <link:definition>0001000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShare" roleURI="http://www.chart-ind.com/role/EarningsPerShare">
        <link:definition>2140100 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareAntidilutiveSecuritiesDetails" roleURI="http://www.chart-ind.com/role/EarningsPerShareAntidilutiveSecuritiesDetails">
        <link:definition>2440403 - Disclosure - Earnings Per Share - Antidilutive Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareDetails" roleURI="http://www.chart-ind.com/role/EarningsPerShareDetails">
        <link:definition>2440402 - Disclosure - Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareNarrativesDetails" roleURI="http://www.chart-ind.com/role/EarningsPerShareNarrativesDetails">
        <link:definition>2440404 - Disclosure - Earnings Per Share - Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareTables" roleURI="http://www.chart-ind.com/role/EarningsPerShareTables">
        <link:definition>2340301 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://www.chart-ind.com/role/FairValueMeasurements">
        <link:definition>2137100 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssets" roleURI="http://www.chart-ind.com/role/GoodwillAndIntangibleAssets">
        <link:definition>2133100 - Disclosure - Goodwill and Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsFutureAmortizationExpenseDetails" roleURI="http://www.chart-ind.com/role/GoodwillAndIntangibleAssetsFutureAmortizationExpenseDetails">
        <link:definition>2433405 - Disclosure - Goodwill and Intangible Assets - Future Amortization Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsGoodwillDetails" roleURI="http://www.chart-ind.com/role/GoodwillAndIntangibleAssetsGoodwillDetails">
        <link:definition>2433402 - Disclosure - Goodwill and Intangible Assets - Goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsGovernmentGrantsDetails" roleURI="http://www.chart-ind.com/role/GoodwillAndIntangibleAssetsGovernmentGrantsDetails">
        <link:definition>2433406 - Disclosure - Goodwill and Intangible Assets - Government Grants (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsIntangibleAssetsExcludingGoodwillDetails" roleURI="http://www.chart-ind.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsExcludingGoodwillDetails">
        <link:definition>2433403 - Disclosure - Goodwill and Intangible Assets - Intangible Assets (Excluding Goodwill) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsNarrativesDetails" roleURI="http://www.chart-ind.com/role/GoodwillAndIntangibleAssetsNarrativesDetails">
        <link:definition>2433404 - Disclosure - Goodwill and Intangible Assets - Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsTables" roleURI="http://www.chart-ind.com/role/GoodwillAndIntangibleAssetsTables">
        <link:definition>2333301 - Disclosure - Goodwill and Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.chart-ind.com/role/IncomeTaxes">
        <link:definition>2142100 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDetails" roleURI="http://www.chart-ind.com/role/IncomeTaxesDetails">
        <link:definition>2442401 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Inventories" roleURI="http://www.chart-ind.com/role/Inventories">
        <link:definition>2128100 - Disclosure - Inventories</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventoriesDetails" roleURI="http://www.chart-ind.com/role/InventoriesDetails">
        <link:definition>2428402 - Disclosure - Inventories (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventoriesTables" roleURI="http://www.chart-ind.com/role/InventoriesTables">
        <link:definition>2328301 - Disclosure - Inventories (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ProductWarranties" roleURI="http://www.chart-ind.com/role/ProductWarranties">
        <link:definition>2135100 - Disclosure - Product Warranties</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ProductWarrantiesDetails" roleURI="http://www.chart-ind.com/role/ProductWarrantiesDetails">
        <link:definition>2435402 - Disclosure - Product Warranties (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ProductWarrantiesNarrativesDetails" roleURI="http://www.chart-ind.com/role/ProductWarrantiesNarrativesDetails">
        <link:definition>2435403 - Disclosure - Product Warranties - Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ProductWarrantiesTables" roleURI="http://www.chart-ind.com/role/ProductWarrantiesTables">
        <link:definition>2335301 - Disclosure - Product Warranties (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReportableSegments" roleURI="http://www.chart-ind.com/role/ReportableSegments">
        <link:definition>2116100 - Disclosure - Reportable Segments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReportableSegmentsAssetsDetails" roleURI="http://www.chart-ind.com/role/ReportableSegmentsAssetsDetails">
        <link:definition>2416404 - Disclosure - Reportable Segments - Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReportableSegmentsProductSalesInformationDetails" roleURI="http://www.chart-ind.com/role/ReportableSegmentsProductSalesInformationDetails">
        <link:definition>2416403 - Disclosure - Reportable Segments - Product Sales Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReportableSegmentsSegmentIncomeDetails" roleURI="http://www.chart-ind.com/role/ReportableSegmentsSegmentIncomeDetails">
        <link:definition>2416402 - Disclosure - Reportable Segments - Segment Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReportableSegmentsTables" roleURI="http://www.chart-ind.com/role/ReportableSegmentsTables">
        <link:definition>2316301 - Disclosure - Reportable Segments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringActivities" roleURI="http://www.chart-ind.com/role/RestructuringActivities">
        <link:definition>2145100 - Disclosure - Restructuring Activities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringActivitiesRestructuringChargesDetails" roleURI="http://www.chart-ind.com/role/RestructuringActivitiesRestructuringChargesDetails">
        <link:definition>2445402 - Disclosure - Restructuring Activities - Restructuring Charges (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringActivitiesRollforwardDetails" roleURI="http://www.chart-ind.com/role/RestructuringActivitiesRollforwardDetails">
        <link:definition>2445403 - Disclosure - Restructuring Activities - Rollforward (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringActivitiesTables" roleURI="http://www.chart-ind.com/role/RestructuringActivitiesTables">
        <link:definition>2345301 - Disclosure - Restructuring Activities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Revenue" roleURI="http://www.chart-ind.com/role/Revenue">
        <link:definition>2125100 - Disclosure - Revenue</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueDetails" roleURI="http://www.chart-ind.com/role/RevenueDetails">
        <link:definition>2425402 - Disclosure - Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueDisaggregationOfRevenueDetails" roleURI="http://www.chart-ind.com/role/RevenueDisaggregationOfRevenueDetails">
        <link:definition>2425404 - Disclosure - Revenue - Disaggregation of Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueNarrativesDetails" roleURI="http://www.chart-ind.com/role/RevenueNarrativesDetails">
        <link:definition>2425403 - Disclosure - Revenue - Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueTables" roleURI="http://www.chart-ind.com/role/RevenueTables">
        <link:definition>2325301 - Disclosure - Revenue (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedCompensation" roleURI="http://www.chart-ind.com/role/ShareBasedCompensation">
        <link:definition>2143100 - Disclosure - Share-based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedCompensationDetails" roleURI="http://www.chart-ind.com/role/ShareBasedCompensationDetails">
        <link:definition>2443401 - Disclosure - Share-based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="gtls_AdjustedBaseRateMember" name="AdjustedBaseRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_AdjustmentstoSharebasedCompensation" name="AdjustmentstoSharebasedCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_AmortizationDiscontinuedOperations" name="AmortizationDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_ApplicableConversionPricePercentage" name="ApplicableConversionPricePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="gtls_ApplicableConversionPriceThresholdPercentage" name="ApplicableConversionPriceThresholdPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="gtls_BankGuaranteesSupportedByCreditFacilities" name="BankGuaranteesSupportedByCreditFacilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gtls_BiomedicalMember" name="BiomedicalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_BulkindustrialgasapplicationsMember" name="BulkindustrialgasapplicationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_BusinessCombinationContingentConsiderationArrangementsInceptionAmountRecordedDuringReportingPeriod" name="BusinessCombinationContingentConsiderationArrangementsInceptionAmountRecordedDuringReportingPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilities" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gtls_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentGoodwill" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentGoodwill" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAcquired" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAcquired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssetsAssets" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssetsAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentLiabilities" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gtls_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherLongTermLiabilities" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherLongTermLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gtls_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedUnbilledContractRevenue" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedUnbilledContractRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="gtls_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentLiabilitiesAccruedSalariesWagesandBenefits" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentLiabilitiesAccruedSalariesWagesandBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="gtls_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentLiabilitiesCurrentportionofwarrantyreserve" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentLiabilitiesCurrentportionofwarrantyreserve" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="gtls_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCustomerAdvancesandBillingsInExcessofContractRevenue" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCustomerAdvancesandBillingsInExcessofContractRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gtls_CCDECFacilityMember" name="CCDECFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_CCESCTermLoanMaturingMay262024Member" name="CCESCTermLoanMaturingMay262024Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_ChangeinAccountsReceivableAsaPercentage" name="ChangeinAccountsReceivableAsaPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ChangeinContractwithCustomerAssetRollForward" name="ChangeinContractwithCustomerAssetRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ChangeinContractwithCustomerLiabilityRollForward" name="ChangeinContractwithCustomerLiabilityRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_ChangeinCustomerAdvancesandBillingsinExcessofContractRevenueAsaPercentage" name="ChangeinCustomerAdvancesandBillingsinExcessofContractRevenueAsaPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_ChangeinLongtermDeferredRevenueAsaPercentage" name="ChangeinLongtermDeferredRevenueAsaPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_ChangeinUnbilledContractRevenueAsaPercentage" name="ChangeinUnbilledContractRevenueAsaPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ChartCryogenicEngineeringSystemsCoLtdMember" name="ChartCryogenicEngineeringSystemsCoLtdMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ChartLuxembourgFacilityMember" name="ChartLuxembourgFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ChinaFacilitiesMember" name="ChinaFacilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ConvertibleNotesDue2018Member" name="ConvertibleNotesDue2018Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ConvertibleNotesdue2024Member" name="ConvertibleNotesdue2024Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_CryobiologicalMember" name="CryobiologicalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_DebtInstrumentFairValue.PercentageoverParValue" name="DebtInstrumentFairValue.PercentageoverParValue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gtls_DebtwithConversionandOtherOptionsAxis" name="DebtwithConversionandOtherOptionsAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_DebtwithConversionandOtherOptionsDomain" name="DebtwithConversionandOtherOptionsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_DepreciationDiscontinuedOperations" name="DepreciationDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_DisposalGroupIncludingDiscontinuedOperationCustomerAdvancesandBillinginExcessofContractRevenueCurrent" name="DisposalGroupIncludingDiscontinuedOperationCustomerAdvancesandBillinginExcessofContractRevenueCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="gtls_DisposalGroupIncludingDiscontinuedOperationUnbilledContractRevenueCurrent" name="DisposalGroupIncludingDiscontinuedOperationUnbilledContractRevenueCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="gtls_DisposalGroupIncludingDiscontinuedOperationWarrantyReserveCurrent" name="DisposalGroupIncludingDiscontinuedOperationWarrantyReserveCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gtls_DistributionStorageEastMember" name="DistributionStorageEastMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_DistributionStorageWestMember" name="DistributionStorageWestMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_EnergyChemicalsMember" name="EnergyChemicalsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_EquityComponentMember" name="EquityComponentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_FeroxSecuredFacilitiesAandBMemberMember" name="FeroxSecuredFacilitiesAandBMemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_FeroxSecuredFacilityA1FacilityMember" name="FeroxSecuredFacilityA1FacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_FeroxSecuredFacilityB2facilitiesMember" name="FeroxSecuredFacilityB2facilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ForeignFacilitiesMember" name="ForeignFacilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_FrontingFeePercentageChargedForIssuanceOfLettersOfCredit" name="FrontingFeePercentageChargedForIssuanceOfLettersOfCredit" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="gtls_GoodwillImpairedForeignCurrencyTranslationAdjustment" name="GoodwillImpairedForeignCurrencyTranslationAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gtls_GovernmentGrant" name="GovernmentGrant" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_HVACpowerandrefiningMember" name="HVACpowerandrefiningMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_HetscoMember" name="HetscoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_HudsonMember" name="HudsonMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_IncreaseDecreaseInCustomerAdvancesAndBillingsInExcessOfCost" name="IncreaseDecreaseInCustomerAdvancesAndBillingsInExcessOfCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_IndustrialgasapplicationsMember" name="IndustrialgasapplicationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_IntangibleAssetsDisclosureAbstract" name="IntangibleAssetsDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_InteresttoEBITDA" name="InteresttoEBITDA" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant" />
  <xsd:element id="gtls_LetterOfCreditAndGuaranteeFeesPercentageOfFaceAmountForMaturitiesUpToOneYear" name="LetterOfCreditAndGuaranteeFeesPercentageOfFaceAmountForMaturitiesUpToOneYear" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gtls_LiabilityComponentMember" name="LiabilityComponentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_LineofCreditParticipationFeePercentage" name="LineofCreditParticipationFeePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_LineofCreditWorkingCapitalMember" name="LineofCreditWorkingCapitalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_LiquefiednaturalgasapplicationsMember" name="LiquefiednaturalgasapplicationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_MaximumDaysAfterAnyFiveTradingDayPeriodInWhichTradingPriceWasLessThan97PercentOfLastReportedSalePriceofCommonStockTimesConversionRate" name="MaximumDaysAfterAnyFiveTradingDayPeriodInWhichTradingPriceWasLessThan97PercentOfLastReportedSalePriceofCommonStockTimesConversionRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_MaximumPercentageOfCapitalStockGuaranteedByCompanysMaterialNonUSSubsidiariesForObligationsUnderSeniorCreditFacility" name="MaximumPercentageOfCapitalStockGuaranteedByCompanysMaterialNonUSSubsidiariesForObligationsUnderSeniorCreditFacility" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gtls_NaturalgasprocessingincludingpetrochemicalapplicationsMember" name="NaturalgasprocessingincludingpetrochemicalapplicationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_NetCostofConvertibleNoteHedgeandWarrants" name="NetCostofConvertibleNoteHedgeandWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_NumberofCreditFacilities" name="NumberofCreditFacilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gtls_OverdraftFacilityMember" name="OverdraftFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_PackagedgasindustrialapplicationsMember" name="PackagedgasindustrialapplicationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_PaymentsForCallOptionsRelatedtoConvertibleDebt" name="PaymentsForCallOptionsRelatedtoConvertibleDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gtls_PaymentstoRepurchaseConvertibleNotes" name="PaymentstoRepurchaseConvertibleNotes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gtls_PercentageAboveSalesPrice" name="PercentageAboveSalesPrice" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="gtls_PremiumPercentageOnSharesIssuedfromConversionofConvertibleDebt" name="PremiumPercentageOnSharesIssuedfromConversionofConvertibleDebt" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="gtls_RevenueRemainingPerformanceObligationPercentage" name="RevenueRemainingPerformanceObligationPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gtls_RevolvingCreditFacilitySublimitExpansionOptionMember" name="RevolvingCreditFacilitySublimitExpansionOptionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_RevolvingCreditFacilitySublimitForeignBorrowerMember" name="RevolvingCreditFacilitySublimitForeignBorrowerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_RevolvingCreditFacilitySublimitForeignCurrencyMember" name="RevolvingCreditFacilitySublimitForeignCurrencyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_RevolvingCreditFacilitySublimitLettersofCreditMember" name="RevolvingCreditFacilitySublimitLettersofCreditMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_RevolvingCreditFacilitySublimitSwinglineMember" name="RevolvingCreditFacilitySublimitSwinglineMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems" name="ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ScheduleOfFiniteLivedAndIndefinteLivedIntangibleAssetsTable" name="ScheduleOfFiniteLivedAndIndefinteLivedIntangibleAssetsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_ScheduleofGovernmentGrantsTableTextBlock" name="ScheduleofGovernmentGrantsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_ScheduleofInterestAccretionLossonExtinguishmentandAmortizationofFinancingCostsTableTextBlock" name="ScheduleofInterestAccretionLossonExtinguishmentandAmortizationofFinancingCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_SeniorSecuredRevolvingCreditFacilityMember" name="SeniorSecuredRevolvingCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_SeniorSecuredRevolvingCreditFacilitydue2022Member" name="SeniorSecuredRevolvingCreditFacilitydue2022Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_SharebasedCompensationArrangementbySharebasedPaymentAwardTotalFairValueGrantedDuringPeriodEmployees" name="SharebasedCompensationArrangementbySharebasedPaymentAwardTotalFairValueGrantedDuringPeriodEmployees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_SharesBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" name="SharesBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_SkaffMember" name="SkaffMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_SwingLineMember" name="SwingLineMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gtls_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense" name="TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense" name="TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_TaxCutsandJobsActIncompleteAccountingProvisionalIncomeTaxExpenseBenefit" name="TaxCutsandJobsActIncompleteAccountingProvisionalIncomeTaxExpenseBenefit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_TaxCutsandJobsActIncompleteAccountingTransitionTaxforAccumulatedForeignEarningsProvisionalIncreaseDecreaseinLiability" name="TaxCutsandJobsActIncompleteAccountingTransitionTaxforAccumulatedForeignEarningsProvisionalIncreaseDecreaseinLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gtls_TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit" name="TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_ThermaxMember" name="ThermaxMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_VCTVogelGmbHMember" name="VCTVogelGmbHMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_VRVMember" name="VRVMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gtls_WeightedAverageNumberOfCommonSharesOutstandingAbstract" name="WeightedAverageNumberOfCommonSharesOutstandingAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
</xsd:schema>
