Variable displacement vane compressor

Details Variable displacement vane compressor Variable displacement vane compressor

1989-01-30

1989-07-11

Freeh, William J.

Pumps

With condition responsive pumped fluid control

Inlet throttle or stop valve

417310, 622285, F04B 4902, F04C 2908

Patent

active

048466328

ABSTRACT:
A variable displacement vane compressor for an air conditioning system used in an automobile has a cylinder assembly having a bore which receives a rotor to form at least one crescent or compressing chamber between the rotor and the bore. The crescent chamber receives a refrigerant which is returned from the air conditioning system. The rotor has vanes which are extendably fitted therein so that the free end of the vanes are in contact with the circumferential inner surface of the bore during the rotation of the rotor, whereby when the vane passes through the crescent chamber, the refrigerant received therein can be compressed. The amount of the refrigerant introduced into the crescent chamber is adjustable in response to a change of a cooling load at the air conditioning system.

REFERENCES:
patent: 3451614 (1969-06-01), Tosh
patent: 4060343 (1977-11-01), Newton
patent: 4137018 (1979-01-01), Brucken
patent: 4272227 (1981-06-01), Woodruff
patent: 4557670 (1985-12-01), Inagaki
patent: 4726740 (1988-02-01), Suzuki et al.
Patent Abstracts of Japan, vol. 7, No. 59 (M-199) [1204], Mar. 11, 1983; & JP-A-57 203 892 (Nippon Denso K.K.).
Patent Abstracts of Japan, vol. 7, No. 240 (M-251) [1385], Oct. 25, 1983; & JP-A-58 128 487 (Nippon Jidosha Buhin Sogo Kendyusho K.K.).

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