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1In2003FrickIsCelebrating150YearsinManufacturingand120YearsinRefrigerationFrickhasProducedover60,000ScrewCompressorssincetheFirstRWB-IIwasintroducedin1982ScrewCompressorBasicGeometryConstructionSuctionprocessMaximumSuctionVolumeTrappedCompressionContinuationofCompressionBeginningofDischarge1112EndofDischargeAxialDischargePortVi(VolumeRatio)VolumeRatioVolumeRatioLowViVolumeRatioHiVi192021PartingLine23FrickVolumizerTMvariablevolumeratiocontrolsavespowerautomaticallyasconditionschangeCapacityControlSlideValveUnloadingHowSlideValvesImprovePartLoadVolumeRatioCapacityControlMethods-2SlideValveViiscontrolledbytheQuantumTM,anadvancedPentiumbasedmicroprocessorcontrolAllFrickScrewsuse100%Anti-FrictionBearings3233CylindricalRollerBearingAnti-FrictionBearingsConsumeLessFrictionalHorsepowerApproximately11HPona300HPapplicationAnti-frictionBearingsallowtighterrotortorotorclearanceforlessgasleakageandreducedpowerconsumption.OilReservoirOilCoolerOilCoolerOilCoolerBearingFlawThiswasstillacheaprebuild-nomajorrotororhousingdamageBad50Singlevs.TwinScrewSinglevs.TwinScrewSinglevs.TwinScrewFrick/Yorkhasasinglescrewlicenseandforawhiledevelopedbothmachines.Ultimatelytheperformanceofthesinglescrewcouldnotcompetewiththetwinandabandonedthesinglescrewdevelopment.55
