Rotary expansible chamber devices – Specific material
Reexamination Certificate
2005-09-27
2005-09-27
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
Specific material
C418S055200, C418S178000, C252S068000, C327S565000
Reexamination Certificate
active
06948922
ABSTRACT:
The present invention provides a hermetic or open compressor for hydrocarbon refrigerant having high reliability. According to the present invention, in the compressor using hydrocarbon as refrigerant, synthetic oil such as polyalkylene glycol oil, ester oil or ether oil is used as freezer oil. Sliding member of the compressor includes both a portion made of aluminum material and a portion made of iron material. Therefore, it is possible to realize a compressor having excellent wear resistance and high reliability.
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Aiba Osamu
Esumi Mototaka
Yamamoto Shuichi
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