Vacuum preventing device of scroll compressor

Details Vacuum preventing device of scroll compressor Vacuum preventing device of scroll compressor

2005-05-17

2005-05-17

Trieu, Theresa (Department: 3748)

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

C418S055100, C418S055500, C418S057000, C417S308000

Reexamination Certificate

active

06893229

ABSTRACT:
Disclosed is a vacuum preventing device of a scroll compressor comprising: a discharge cover installed at a body of a fixed scroll for dividing inside of a case into a discharge region and a suction region; a vacuum cylinder installed in the discharge cover thus to be connected to a compression chamber formed between the fixed scroll and an orbiting scroll and having a pressure space therein so that the discharge region can be connected to the suction region; a piston movably installed in the pressure space for selectively connecting the discharge region with the suction region by a pressure difference between the compression chamber and the suction region; and an elastic member installed in the pressure space for providing an elastic force to the piston.

REFERENCES:
patent: 5090880 (1992-02-01), Mashimo
patent: 5236316 (1993-08-01), Iio
patent: 5240388 (1993-08-01), Matsumoto et al.
patent: 6685441 (2004-02-01), Nam
patent: 58220988 (1983-12-01), None
patent: 2000-356194 (2000-12-01), None

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