US Patent 7438541 Hermetic rotary compressor
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Patent Inventor Names
Hiroshi Matsunaga0
Toru Aya0
Toshiharu Yasu0
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Patent abstract
A hermetic rotary compressor operates two cylinders simultaneously in the regular operation; however it halts operating one of the cylinders when it selects an operation with a half capacity. A vane room of the halted cylinder is air-tightly sealed with respect to lubricant atmosphere in a hermetic case. An oil-supplying groove is provided to a vane groove of the halted cylinder, and lubricant is supplied to the oil-supplying groove in order to lubricate the vane.
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US Patent 07438541 Hermetic rotary compressor US Patent 7438541 Hermetic rotary compressor
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Patent Number
074385410
Patent Number
74385410
Edits on 20 May, 2023
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Official Website
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Patent Jurisdiction
Patent Number
074385410
Date of Patent
October 21, 2008
0Patent Application Number
120342120
Date Filed
February 20, 2008
0Official Website
Patent Primary Examiner
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US Patent 07438541 Hermetic rotary compressor
Infobox
Is a
Patent jurisdiction
Patent number
07438541
Date of patent
October 21, 2008
Patent application number
12034212
Date Filed
February 20, 2008
Patent primary examiner
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