Scroll compressor with discharge chamber groove

Details Scroll compressor with discharge chamber groove Scroll compressor with discharge chamber groove

1999-03-23

2000-09-05

Denion, Thomas

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 552, F01C 102

Patent

active

061133728

ABSTRACT:
A groove is formed in the base of a scroll member, and has an end communicating with a discharge port. A portion of the groove also communicates with one or both intermediate compression chambers at a point just before the compression chambers begins to communicate with the discharge port. This allows for a gradual equalization of pressure in the intermediate compression chambers and compressor discharge just before porting. This results in reduction of unwanted compressor noise. Further, once the chambers have communicated with the discharge port, the groove continues to provide additional flow passages to the discharge port, thus decreasing throttling flow loses through the compressor port.

REFERENCES:
patent: 4645437 (1987-02-01), Sakashita et al.
patent: 4992032 (1991-02-01), Barito et al.
patent: 5069605 (1991-12-01), Saitoh et al.
patent: 5370512 (1994-12-01), Fujitani et al.
patent: 5427513 (1995-06-01), Yamada et al.

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