Rotary expansible chamber devices – Multistage – Sliding abutment
Reexamination Certificate
2006-01-02
2009-11-03
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
Multistage
Sliding abutment
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.
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International Search Report dated May 10, 2006.
Byun Sang-Myung
Cha Kang-Wook
Cho Seoung-Yeon
Ked & Associates LLP
LG Electronics Inc.
Trieu Theresa
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