Trane TRG-TRC004-EN manual Compressor Types, RPSUHVVRU7\SHV

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Compressor Types

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This period is devoted to the discussion of the different types of compressors.

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There are primarily four types of compressors used in the air-conditioning industry: reciprocating, scroll, helical-rotary (or screw), and centrifugal.

The traditional reciprocating compressor has been used in the industry for decades. It contains cylinders, pistons, rods, a crankshaft, and valves, similar to an automobile engine. Refrigerant is drawn into the cylinders on the downstroke of the piston and compressed on the upstroke.

Scroll and helical-rotary(or screw) compressors have become more common, replacing the reciprocating compressor in most applications due to their improved reliability and efficiency.

These three types of compressors (reciprocating, scroll, and helical-rotary) all work on the principle of trapping the refrigerant vapor and compressing it by

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Contents Air Conditioning Clinic Refrigeration Compressors Business Reply Mail Comment Card One of the Fundamental SeriesRefrigeration Compressors Preface 5HIULJHUDWLRQ&RPSUHVVRUVContents TRG-TRC004-EN Introduction 9DSRU&RPSUHVVLRQ5HIULJHUDWLRQ5HIULJHUDWLRQ&\FOH Compressor Types RPSUHVVRU7\SHV5HFLSURFDWLQJ&RPSUHVVRU Reciprocating CompressorFrpsuhvvlrq Vwurnh Rshqlqj Glvfkdujh Slvwrq 6FUROO&RPSUHVVRU Scroll CompressorMrxuqdo Lqwdnh Skdvh Frpsuhvvlrq Glvfkdujh +HOLFDO5RWDU\6FUHZ&RPSUHVVRU Helical-Rotary Screw Compressor+HOLFDO5RWDU\&RPSUHVVRU Phvklqjsrlqw HQWULIXJDO&RPSUHVVRU Centrifugal CompressorYroxwh Gliixvhu Sdvvdjhv Udgldo Lpshoohu Eodghv Uhiuljhudqw 2SHQ&RPSUHVVRU +HUPHWLF&RPSUHVVRU 6HPLKHUPHWLF&RPSUHVVRUCompressor Capacity Control 0HWKRGVRI&RPSUHVVRU8QORDGLQJ\OLQGHU8QORDGHUV Cylinder UnloadersXqordghufrqwuroohu Vrohqrlgydoyh Ydoyh DSDFLW\9HUVXV6XFWLRQ7HPSHUDWXUH RPSUHVVRU8QORDGLQJ $OWHUQDWLQJ&\OLQGHUV2QDQG2II \FOLQJ6FUROO&RPSUHVVRUV \FOLQJ2QDQG2IICycling On and Off \FOLQJ6FUROO&RPSUHVVRUV 6OLGH9DOYH Slide ValveQOHW9DQHV Inlet VanesInlet vanes presented in this section of the clinic 9DULDEOH6SHHG Variable Speed\VWHP/HYHO&RQWURO Compressor in a SystemSystem-Level Control RQVWDQW9ROXPH6\VWHP 9DULDEOH$LU9ROXPH6\VWHP KLOOHGDWHU6\VWHPPreventing Evaporator Freeze-Up 6HQVLQJ6XFWLRQ7HPSHUDWXUH +RW*DV%\SDVVWRYDSRUDWRU,QOHW +RW*DV%\SDVVWR6XFWLRQ/LQH System Components clinic Review 5HYLHZ²3HULRG2QH5HYLHZ²3HULRG7ZR 5HYLHZ²3HULRG7KUHH \VWHPOHYHOFRQWUROFor more information, refer to the following references TRG-TRC004-EN Quiz Questions for PeriodAnswers Glossary Glossary Glossary Trane Company