INTEGRATED HEAT EXCHANGER FOR USE IN A REFRIGERATION SYSTEM

WIPO Patent Application WO2006009790

A3

A refrigeration system includes a multiple stage compressor 10 having at least two stages 12, 14 for sequentially compressing the refrigerant together with a gas cooler 21 connected to the compressor 10 for re-ceiving compressed refrigerant from the last stage 14 of the compressor to cool the same. An evaporator 18 is connected to the gas cooler 21 via an expansion device to receive cool refrigerant therefrom and cool the fluid stream passing through the evaporator 18. A return passage connects the evaporator 18 to the first stage 12 of the compressor and an intercooler 26 is connected between the first stage 12 and the last stage 14 of the com­pressor to cool refrigerant compressed by the first stage 12 and direct the refrigerant cooled thereby to the last stage 14 for further compression. The intercooler 26 and the gas cooler 21 are integrated into a single unit 22 and receive a single cooling heat exchange fluid and the gas cooler 21 has a larger heat transfer surface area than the intercooler 26.

JP6958658	Refrigeration equipment
JP3615364	Multi-stage compression refrigeration system
JP2015158311	HEAT EXCHANGE DEVICE, HEAT PUMP DEVICE, AND OPERATION METHOD THEREOF

JIA TAO (US)
MEMORY STEPHEN B (US)
YIN JIANMIN (US)

PCT/US2005/021348

May 11, 2006

June 16, 2005

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MODINE MFG CO (US)
JIA TAO (US)
MEMORY STEPHEN B (US)
YIN JIANMIN (US)

F25B1/10; F25B9/00; F28D1/04; F25B40/00

WO2004038307A1	2004-05-06
WO2004018946A2	2004-03-04
WO2004033947A1	2004-04-22

EP1394479A2	2004-03-03
EP1462739A2	2004-09-29
US4167965A	1979-09-18

COLLIER S ET AL: "ADAPTING A VEHICLE FROM A R134A TO A R744 (CO2) AC SYSTEM", SAE AUTOMOTIVE ALTERNATE REFRIGERANT SYSTEMS SYMPOSIUM, 16 July 2003 (2003-07-16), pages 1 - 24, XP001169136

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