Refrigeration cycle

Details Refrigeration cycle Refrigeration cycle

2007-04-24

2007-04-24

Ali, Mohammad M. (Department: 3744)

Refrigeration

Automatic control

Refrigeration producer

C062S500000

Reexamination Certificate

active

10879359

ABSTRACT:
A variable displacement compressor driven by an engine, such as an engine for driving an automotive vehicle is used as a compressor, and the capacity of the compressor is controlled by a capacity control valve such that the differential pressure between discharge pressure and suction pressure of refrigerant becomes equal to a predetermined differential pressure determined by an external signal. Pressure substantially equal to pressure applied across the compressor is applied across the ejector, and therefore to control the differential pressure across the compressor is to control the differential pressure across the ejector. A differential pressure valve disposed between a gas-liquid separator and an evaporator is set to a differential pressure approximately proportional to the differential pressure across the ejector.

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European Search Report dated Nov. 17, 2004 for European patent application No. 04 01 6144.

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