Scroll compressor and refrigerating apparatus

Details Scroll compressor and refrigerating apparatus Scroll compressor and refrigerating apparatus

2006-06-07

2010-11-02

Kramer, Devon C (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Having condition responsive pumped fluid control

C417S279000, C417S410500, C062S505000

Reexamination Certificate

active

07824160

ABSTRACT:
A scroll back pressure chamber in a scroll compressor is composed of a space111filled with suction pressure (or intermediate pressure) and a space filled with discharge pressure, and the summation of the suction pressure (or the intermediate pressure) and the discharge pressure presses one of scrolls against the other of the scrolls. An injection hole, through which refrigerant in gas state or refrigerant in liquid state is injected into a compression chamber of the scroll compressor, is provided on a fixed scroll, and the gas refrigerant injection or the liquid refrigerant injection is selected and carried out according to an operating pressure ratio.

REFERENCES:
patent: 5103652 (1992-04-01), Mizuno et al.
patent: 5469716 (1995-11-01), Bass et al.
patent: 5722257 (1998-03-01), Ishii et al.
patent: 05-302760 (1993-11-01), None
patent: 09-229496 (1997-09-01), None

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