Trane TRG-TRC004-EN manual 6FUROO&RPSUHVVRU, Scroll Compressor

Page 14

period one

Compressor Types

notes

6FUROO&RPSUHVVRU

VWDWLRQDU\

VFUROO

	GLVFKDUJH
GLVFKDUJH
SRUW
LQWDNH	LQWDNH
	PRWRU
GULYHQ	VKDIW
VFUROO

Figure 10

Scroll Compressor

Similar to the reciprocating compressor, the scroll compressor works on the principle of trapping the refrigerant vapor and compressing it by gradually shrinking the volume of the refrigerant. The scroll compressor uses two scroll configurations, mated face-to-face, to perform this compression process. The tips of the scrolls are fitted with seals that, along with a fine layer of oil, prevent the compressed refrigerant vapor from escaping through the mating surfaces.

The upper scroll, called the stationary scroll, contains a discharge port. The lower scroll, called the driven scroll, is connected to a motor by a shaft and bearing assembly. The refrigerant vapor enters through the outer edge of the scroll assembly and discharges through the port at the center of the stationary scroll.

TRG-TRC004-EN

7

Image 14

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 $OWHUQDWLQJ&\OLQGHUV2QDQG2II Cycling On and Off \FOLQJ2QDQG2II\FOLQJ6FUROO&RPSUHVVRUV \FOLQJ6FUROO&RPSUHVVRUV 6OLGH9DOYH Slide ValveQOHW9DQHV Inlet VanesInlet vanes presented in this section of the clinic 9DULDEOH6SHHG Variable SpeedSystem-Level Control Compressor in a System\VWHP/HYHO&RQWURO RQVWDQW9ROXPH6\VWHP 9DULDEOH$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