Scroll compressor having a check valve received in a stationary

Details Scroll compressor having a check valve received in a stationary Scroll compressor having a check valve received in a stationary

1995-07-05

1997-01-28

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 552, 418270, 137856, F04C 1804, F04C 2900, F16K 1516

Patent

active

055972969

ABSTRACT:
A scroll compressor includes stationary and orbiting scroll members in engagement with each other. The stationary scroll member includes a stationary end plate having first and second end surfaces opposite to each other, a stationary scroll wrap protruding axially from the first end surface of the stationary end plate, a discharge port defined in the stationary end plate in the proximity of a center thereof, and a recess defined in the stationary end plate on the second surface thereof. A check valve is received in the recess so as to open or close the discharge port. The recess has a shape substantially identical to the shape of the check valve and also has a depth greater than a maximum lift of the check valve.

REFERENCES:
patent: 4900238 (1990-02-01), Shigemi et al.

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