Capacity varying type rotary compressor

Rotary expansible chamber devices – Multistage – Sliding abutment

Reexamination Certificate

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Details

C418S023000, C418S060000, C418S270000, C417S213000, C417S440000

Reexamination Certificate

active

07611341

ABSTRACT:
A capacity varying rotary compressor is provided. The compressor includes a casing that maintains a discharge pressure state, a motor installed in the casing that generates a driving force, one or more cylinder assemblies provided in the casing to compress refrigerant with a rolling piston and a vane. The rolling piston is eccentrically coupled to a rotation shaft of the motor to perform a linear motion, and a vane restricting device restricts or releases the vane from the rolling piston according to a difference in pressures applied to the vane. A structure of the compressor may be simplified, resulting in reduced production costs and enhanced productivity. Further, as the vane is restricted by a pressure differential, reliability may be enhanced.

REFERENCES:
patent: 4397618 (1983-08-01), Stenzel
patent: 6716007 (2004-04-01), Kim et al.
patent: 6796773 (2004-09-01), Choi et al.
patent: 2004/0009083 (2004-01-01), Kim et al.
patent: 56012085 (1981-02-01), None
patent: 58030498 (1983-02-01), None
patent: 61175295 (1986-08-01), None
patent: 2191894 (1990-07-01), None
patent: 10047285 (1998-02-01), None
International Search Report dated May 10, 2006.

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