发明授权
- 专利标题: Refrigeration apparatus and lubricating oil composition
- 专利标题(中): 制冷装置和润滑油组成
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申请号: US564598申请日: 1995-11-29
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公开(公告)号: US5806336A公开(公告)日: 1998-09-15
- 发明人: Takashi Sunaga , Yoshinobu Obokata , Masazo Okajima , Takeo Komatsubara , Yasuki Takahashi
- 申请人: Takashi Sunaga , Yoshinobu Obokata , Masazo Okajima , Takeo Komatsubara , Yasuki Takahashi
- 申请人地址: JPX Osaka-fu
- 专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人地址: JPX Osaka-fu
- 优先权: JPX6-295357 19941129
- 主分类号: C10M169/04
- IPC分类号: C10M169/04 ; C10M171/00 ; F01C21/08 ; F01C21/10 ; F04C18/356 ; F04C29/02 ; C10M107/00
摘要:
There are provided a highly durable and efficient refrigerating apparatus and a lubricating oil composition that uses an HFC type refrigerant and is still free from the problem of thermal hydrolysis of polyol-ester type oil and resulting generation of carboxylic acid and sludge so that the refrigerating apparatus and the lubricating oil composition may be used stably for a prolonged period of time. A lubricating oil composition according to the invention comprises as base oil components a polyol-ester type oil formed by reacting specific polyhydric alcohol with a fatty acid, to which tricresylphosphate and epoxy compound comprising glycidyl ether or carbodiimide are added at respective specific rates. A refrigerating apparatus according to the invention uses such a lubricating oil composition as refrigerator oil and comprises a sealed electric driving compressor whose sliding members are made of a material selected from iron type materials, composite materials of aluminum and carbon, iron type materials surface-treated with chromium nitride and ceramic materials.