Hermetic compressor and open compressor
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMototaka Esumi, Osamu Aiba, Shuichi Yamamoto
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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.
Claims4
A hermetic compressor comprising a hermetic case in which a motor and a compression machine are accommodated, and hydrocarbon refrigerant being used as refrigerant to be compressed by said compression machine, wherein freezer oil for lubricating sliding portions of said hermetic compressor is mineral oil or synthetic oil, and bearing sliding portions constituting said sliding portions of said hermetic compressor are made of sintered iron material having sintering density of 6.5 g/cm3 or greater.
Dependencies are inferred from the claim text.