Scroll type compressor

Details Scroll type compressor Scroll type compressor

1992-07-13

1993-08-31

Bertsch, Richard A.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

F04B 4900

Patent

active

052403890

ABSTRACT:
In a scroll type compressor, a revolving scroll having a disc portion and a blade portion is engaged with a stationary scroll having a disc portion and a blade portion. A gas is introduced from the outer peripheral portions of these scrolls and compressed in a pair of compression chambers defined between the scrolls, and a compressed gas is discharged. A first inlet and a second inlet, which are connected by a communication path, are formed at positions corresponding to the compression chambers, where the gas is compressed. Release means is provided between one of the compression chambers and a gas suction unit. The release means returns part of the gas in one of the compression chambers directly to, and part of the gas in the other compression chamber via the first and second inlets, the communication path and the one of the compression chambers to, the gas suction unit simultaneously by equal degrees.

REFERENCES:
patent: 4383805 (1983-05-01), Teegarden et al.
patent: 4456435 (1984-06-01), Hiraga et al.
patent: 4497615 (1985-02-01), Griffith
patent: 4717314 (1988-01-01), Sato et al.
patent: 4846633 (1989-07-01), Suzuki et al.
patent: 4886425 (1989-12-01), Itahana et al.
patent: 5055012 (1991-10-01), Sakashita et al.

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