Valved suction mechanism for refrigerant compressor

Details Valved suction mechanism for refrigerant compressor Valved suction mechanism for refrigerant compressor

1996-12-06

1999-02-23

Freay, Charles G.

Pumps

With condition responsive pumped fluid control

Inlet throttle or stop valve

417270, 417440, F04B 4908

Patent

active

058737065

ABSTRACT:
A refrigerant compressor includes a compressor housing divided by a valve plate into a first chamber and a second chamber. The valve plate includes suction conduits linking the first chamber with the suction chamber and discharge conduits linking the first chamber with the discharge chamber. A suction valve member bends to open and close the suction conduits in response to changes in discharge chamber pressure and the resulting pressure difference between the first chamber and the suction chamber. A suction valve control mechanism includes a regulator for regulating the opening and closing of the suction conduit between a maximum opening position and a minimum opening position in response to changes in discharge chamber pressure. Consquently, a starting torque shock to the compressor is reduced while maintaining high volumetric efficiency of the compressor.

REFERENCES:
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patent: 4330999 (1982-05-01), Nakayama
patent: 4432698 (1984-02-01), Shirakuma et al.
patent: 4505122 (1985-03-01), Inomata
patent: 4905477 (1990-03-01), Takai
patent: 4976284 (1990-12-01), Hovarter
patent: 5183395 (1993-02-01), Langouet
patent: 5242276 (1993-09-01), Shimizu
patent: 5318410 (1994-06-01), Kawamura et al.
patent: 5533870 (1996-07-01), Takenaka et al.
patent: 5611675 (1997-03-01), Uchida et al.
patent: 5674054 (1997-10-01), Ota et al.
patent: 5688111 (1997-11-01), Takai
European Search Report completed Feb. 2, 1998.

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