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  <xs:element id="gtls_DebtCovenantPotentialDecreaseToSustainabilityFee" abstract="false" name="DebtCovenantPotentialDecreaseToSustainabilityFee" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_CryomotiveGmbHMember" abstract="true" name="CryomotiveGmbHMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_HydrogenTechnologyEnergyCorporationMember" abstract="true" name="HydrogenTechnologyEnergyCorporationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_TermLoan2024CreditFacilityMember" abstract="true" name="TermLoan2024CreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_PacificFertilityCenterMember" abstract="true" name="PacificFertilityCenterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_PremiumPercentageOnSharesIssuedFromConversionOfConvertibleDebt" abstract="false" name="PremiumPercentageOnSharesIssuedFromConversionOfConvertibleDebt" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsNoncontrollingInterestNetOfTax" abstract="false" name="IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsNoncontrollingInterestNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_EuroDemoninatedSeniorSecuredRevolvingCreditFacility2024CreditFacilitiesMember" abstract="true" name="EuroDemoninatedSeniorSecuredRevolvingCreditFacility2024CreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_ProductionBacklogMember" abstract="true" name="ProductionBacklogMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_AdEdgeHoldingsLLCMember" abstract="true" name="AdEdgeHoldingsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_DebtCovenantPotentialIncreaseToSustainabilityFee" abstract="false" name="DebtCovenantPotentialIncreaseToSustainabilityFee" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_GoldHydrogenLLCMember" abstract="true" name="GoldHydrogenLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_CleanH2InfraFundMember" abstract="true" name="CleanH2InfraFundMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_ChangeinAccountsReceivableAsaPercentage" abstract="false" name="ChangeinAccountsReceivableAsaPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_LessorOperatingLeasePaymentToBeReceivedAfterYearFour" abstract="false" name="LessorOperatingLeasePaymentToBeReceivedAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_SeniorSecuredRevolvingCreditFacility2024CreditFacilitiesMember" abstract="true" name="SeniorSecuredRevolvingCreditFacility2024CreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_RepairServiceAndLeasingSegmentMember" abstract="true" name="RepairServiceAndLeasingSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_ContingentConsiderationRoyaltyOnSalesOfCarbonCaptureUnitPercent" abstract="false" name="ContingentConsiderationRoyaltyOnSalesOfCarbonCaptureUnitPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_StabilisEnergyIncMember" abstract="true" name="StabilisEnergyIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_SalesTypeLeaseShortTermNetInvestmentInLeasePurchase" abstract="false" name="SalesTypeLeaseShortTermNetInvestmentInLeasePurchase" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetWorkingCapital" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetWorkingCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_LesseeOperatingLeaseNumberOfContracts" abstract="false" name="LesseeOperatingLeaseNumberOfContracts" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="gtls_NetCostOfConvertibleNoteHedgeAndWarrants" abstract="false" name="NetCostOfConvertibleNoteHedgeAndWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_ChangeinContractwithCustomerAssetRollForward" abstract="true" name="ChangeinContractwithCustomerAssetRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="gtls_DebtInstrumentFairValuePercentageOverParValue" abstract="false" name="DebtInstrumentFairValuePercentageOverParValue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_EquitySecuritiesFVNIForeignCurrencyTranslationAdjustments" abstract="false" name="EquitySecuritiesFVNIForeignCurrencyTranslationAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_SharebasedCompensationArrangementbySharebasedPaymentAwardTotalFairValueGrantedDuringPeriodEmployees" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardTotalFairValueGrantedDuringPeriodEmployees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_CapitalCommitmentConditionOneMember" abstract="true" name="CapitalCommitmentConditionOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_ScheduleOfGovernmentGrantsTableTextBlock" abstract="false" name="ScheduleOfGovernmentGrantsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="gtls_IncreaseDecreaseInContractWithCustomerLiabilityNonCurrent" abstract="false" name="IncreaseDecreaseInContractWithCustomerLiabilityNonCurrent" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_IncreaseDecreaseInCustomerAdvancesAndBillingsInExcessOfCost" abstract="false" name="IncreaseDecreaseInCustomerAdvancesAndBillingsInExcessOfCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_ISquaredCapitalMember" abstract="true" name="ISquaredCapitalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_McPhyMember" abstract="true" name="McPhyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_OperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="OperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_NumberOfLocations" abstract="false" name="NumberOfLocations" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="gtls_ApplicableConversionPriceThresholdPercentage" abstract="false" name="ApplicableConversionPriceThresholdPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_ApplicableConversionPricePercentage" abstract="false" name="ApplicableConversionPricePercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_SpecialtyProductsSegmentMember" abstract="true" name="SpecialtyProductsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_ForeignFacilitiesMember" abstract="true" name="ForeignFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_AnniversaryPeriodAxis" abstract="true" name="AnniversaryPeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="gtls_DebtConversionIfConvertedValueOfSecurityAbovePrincipalAmountOfUnderlyingDebtAmount" abstract="false" name="DebtConversionIfConvertedValueOfSecurityAbovePrincipalAmountOfUnderlyingDebtAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_IncreaseDecreaseInContractWithCustomerAssetAndOtherAssets" abstract="false" name="IncreaseDecreaseInContractWithCustomerAssetAndOtherAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_OtherEquityInvestmentsMember" abstract="true" name="OtherEquityInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_SvanteIncMember" abstract="true" name="SvanteIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_SeniorSecuredRevolvingCreditFacilitiesMember" abstract="true" name="SeniorSecuredRevolvingCreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_HydrogenFundMember" abstract="true" name="HydrogenFundMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_TransformMaterialsMember" abstract="true" name="TransformMaterialsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems" abstract="true" name="ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="gtls_ScheduleOfFiniteLivedAndIndefinteLivedIntangibleAssetsTable" abstract="true" name="ScheduleOfFiniteLivedAndIndefinteLivedIntangibleAssetsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="gtls_CapitalCommitmentConditionTwoMember" abstract="true" name="CapitalCommitmentConditionTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_DebtCovenantPotentialIncreaseToApplicableMargin" abstract="false" name="DebtCovenantPotentialIncreaseToApplicableMargin" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_SustainableEnergySolutionsAndBlueInGreenLLCMember" abstract="true" name="SustainableEnergySolutionsAndBlueInGreenLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_HudsonProductsdeMexicoS.A.deCVMember" abstract="true" name="HudsonProductsdeMexicoS.A.deCVMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_ScheduleOfInterestExpenseAndFinancingCostAmortizationTableTextBlock" abstract="false" name="ScheduleOfInterestExpenseAndFinancingCostAmortizationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="gtls_PercentageAboveSalesPrice" abstract="false" name="PercentageAboveSalesPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_ConvertibleNotesdue2024Member" abstract="true" name="ConvertibleNotesdue2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_HeatTransferSystemsSegmentMember" abstract="true" name="HeatTransferSystemsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_SustainableEnergySolutionsIncMember" abstract="true" name="SustainableEnergySolutionsIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_SanFranciscoSuperiorCourtMember" abstract="true" name="SanFranciscoSuperiorCourtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_GovernmentGrant" abstract="false" name="GovernmentGrant" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_ChangeInCustomerAdvancesAndBillingsInExcessOfContractRevenueAsAPercentage" abstract="false" name="ChangeInCustomerAdvancesAndBillingsInExcessOfContractRevenueAsAPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_ContingentConsiderationRollForward" abstract="true" name="ContingentConsiderationRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="gtls_LibertyLNGMember" abstract="true" name="LibertyLNGMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_DebtCovenantPotentialDecreaseToApplicableMargin" abstract="false" name="DebtCovenantPotentialDecreaseToApplicableMargin" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gtls_ScheduleOfChangesInContingentConsiderationTableTextBlock" abstract="false" name="ScheduleOfChangesInContingentConsiderationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="gtls_SeniorSecuredRevolvingCreditFacility2026CreditFacilitiesMember" abstract="true" name="SeniorSecuredRevolvingCreditFacility2026CreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour" abstract="false" name="SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_SalesTypeLeaseLongTermNetInvestmentInLeasePurchase" abstract="false" name="SalesTypeLeaseLongTermNetInvestmentInLeasePurchase" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_WeightedAverageNumberOfCommonSharesOutstandingAbstract" abstract="true" name="WeightedAverageNumberOfCommonSharesOutstandingAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="gtls_DebtInstrumentPotentialPeriodicIncreaseToMaximumBorrowingAmount" abstract="false" name="DebtInstrumentPotentialPeriodicIncreaseToMaximumBorrowingAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gtls_ScheduleOfInterestAccretionLossOnExtinguishmentAndAmortizationOfFinancingCostsTableTextBlock" abstract="false" name="ScheduleOfInterestAccretionLossOnExtinguishmentAndAmortizationOfFinancingCostsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="gtls_RevolvingCreditFacilitySublimitDiscretionaryLettersofCreditMember" abstract="true" name="RevolvingCreditFacilitySublimitDiscretionaryLettersofCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_LossContingencyNumberOfLawsuits" abstract="false" name="LossContingencyNumberOfLawsuits" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="gtls_LATurbineMember" abstract="true" name="LATurbineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gtls_ClassA1Member" abstract="true" name="ClassA1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
