Valve structure in compressor

Details Valve structure in compressor Valve structure in compressor

1997-03-07

1999-04-06

Freay, Charles G.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417269, 417569, 137855, F04B 3910

Patent

active

058908781

ABSTRACT:
A compressor comprises a plurality of compression chambers used for compressing gas. A gas chamber includes one of a suction chamber for supplying the gas to the compression chambers and a discharge chamber for receiving the compressed gas from the compression chambers. A plate member is located between the compression chambers and the gas chamber. The plate member has a plurality of ports respectively arranged in association with the compression chambers for connecting each compression chamber with the gas chamber. A plurality of valve flaps are respectively arranged in association with the ports. Each of the valve flaps faces the plate member to selectively open and close the associated port. Each valve flap has a proximal end supported on the plate member. The plate member has at least one groove formed thereon and facing the proximal end of each valve flap. Foreign matter enters between the proximal end of each valve flap and the plate member and is collected by the groove. The groove extends over at least two valve flaps.

REFERENCES:
patent: 4325680 (1982-04-01), Bar
patent: 5044892 (1991-09-01), Pettitt
patent: 5143027 (1992-09-01), Bergeron
patent: 5226796 (1993-07-01), Okamoto et al.
patent: 5616008 (1997-04-01), Yokono et al.
patent: 5636973 (1997-06-01), Sonobe et al.
patent: 5672053 (1997-09-01), Sabha
patent: 5713725 (1998-02-01), Kawaguchi et al.
patent: 5741122 (1998-04-01), Yokono et al.

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