Air conditioning compressor

Details Air conditioning compressor Air conditioning compressor

1975-05-02

1976-04-20

Freeh, William L.

Pumps

Three or more cylinders arranged in parallel, radial, or...

417275, 417284, 417292, 417309, F04B 112, F04B 4900

Patent

active

039515699

ABSTRACT:
A piston type compressor for use with an automotive air conditioning system with the capabilities of successfully operating over a wide range of ambient temperatures including apparatus to automatically modify the compressor displacement in response to operating conditions. The effective displacement of the compressor is decreased in response to decreasing ambient temperatures to prevent an excess of compressor capacity over the cooling capacity of the evaporator at that temperature. The modulating apparatus includes pressure responsive valving mounted in the piston to monitor inlet pressure which correspond to operation during low ambient temperatures.

REFERENCES:
patent: 3261541 (1966-07-01), Kocher
patent: 3301470 (1967-01-01), Larsen et al.
patent: 3313530 (1967-04-01), Bicklaus et al.
patent: 3385508 (1968-05-01), Shaw
patent: 3759057 (1973-09-01), English et al.
patent: 3884597 (1975-05-01), Ito

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