Rotary closed type compressor and refrigerating cycle apparatus

Details Rotary closed type compressor and refrigerating cycle apparatus Rotary closed type compressor and refrigerating cycle apparatus

2005-09-07

2010-11-30

Kramer, Devon C (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

C417S213000, C417S214000, C418S011000, C418S023000, C418S060000, C418S063000, C418S270000, C062S172000, C062S226000

Reexamination Certificate

active

07841838

ABSTRACT:
A rotary closed type compressor is configured such that an inside of a case becomes high pressure, and the rotary closed type compressor comprises a first cylinder and a second cylinder having cylinder chambers in which eccentric rollers are housed, respectively, vanes which divide the cylinder chamber into two sections, respectively, and vane chambers in which back-face side end portions of the vanes are housed, respectively. The vane on the first cylinder side is pressed and biased by a spring member provided in the vane chamber, and the vane on the second cylinder side is pressed and biased according to pressure difference between case internal pressure introduced to the vane chamber and suction pressure or discharge pressure introduced to the cylinder chamber.

REFERENCES:
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patent: 5050233 (1991-09-01), Hitosugi et al.
patent: 7232291 (2007-06-01), Choi et al.
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Translation of JP 1-247786 from the IDS.
Translation of JP 61159691 from the IDS.
Machine translation of JP 10-259787 from IDS.
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 172903/1981, (Laid-Open No. 58-77183) Kabushiki Kaisha General, May 25, 1994.
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 42833/1985, (Laid-Open No. 61-159691), Sanyo Electric Co., Ltd., Oct. 3, 1986.
PCT International Preliminary Report on Patentability mailed on Feb. 23, 2006 corresponding to PCT Patent Application No. JP2004/001884.
Official Office Action Letter issued Aug. 10, 2007 in counterpart Chinese application (Application No. 2004800073401), with English language translation.

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