Valve arrangement for a variable displacement compressor

Details Valve arrangement for a variable displacement compressor Valve arrangement for a variable displacement compressor

1986-12-09

1988-06-21

Freeh, William L.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417270, F04B 106, F04B 108

Patent

active

047521899

ABSTRACT:
A valve arrangement for a variable displacement refrigerant compressor comprising one or more valve assemblies adapted to regulate fluid communication between the compressor's discharge cavity and the interior of the crankcase as a function of a predetermined fluid pressure differential. The valve assemblies operate to modulate, as a function of the ambient temperature, the set point of the compressor thereby avoiding evaporator freeze up.

REFERENCES:
patent: 2307949 (1943-01-01), Phillips
patent: 3122162 (1964-02-01), Sands
patent: 3496962 (1970-02-01), Tuzson
patent: 3784327 (1974-01-01), Lonnemo
patent: 3941150 (1976-02-01), Anderson
patent: 4145163 (1979-03-01), Fogelberg
patent: 4344285 (1982-08-01), Ridge
patent: 4519750 (1985-05-01), Kurahashi
patent: 4533299 (1985-08-01), Swain
patent: 4543043 (1985-09-01), Roberts

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