发明申请
- 专利标题: SEALED TYPE COMPRSSOR
- 专利标题(中): 密封式压缩机
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申请号: US12742370申请日: 2008-10-28
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公开(公告)号: US20100284833A1公开(公告)日: 2010-11-11
- 发明人: Takashi Uekawa
- 申请人: Takashi Uekawa
- 申请人地址: JP Osaka-shi, Osaka
- 专利权人: DAIKIN INDUSTRIES, LTD.
- 当前专利权人: DAIKIN INDUSTRIES, LTD.
- 当前专利权人地址: JP Osaka-shi, Osaka
- 优先权: JP2007-295657 20071114
- 国际申请: PCT/JP2008/069493 WO 20081028
- 主分类号: F04C29/02
- IPC分类号: F04C29/02
摘要:
A sealed type compressor includes a sealed vessel, compression and drive elements disposed in the sealed vessel, an oil pump and an oil supply groove. Upper and lower bearings sandwich the cylinder and piston of the compression element from respective axial sides. The drive element drives the compression element via a crank shaft. The lower bearing has an axially extending bearing portion to support the crankshaft. The oil pump draws up a lubricant into an oil channel extending in a shaft center direction of the crankshaft to provide lubrication to the compression and drive elements. The oil supply groove is provided at a sliding face of the bearing portion, and extends along the crankshaft to supply the lubricant to an outer surface of the crankshaft. The oil supply groove has a first open end side and a second closed end side at a lower end side of the crankshaft.
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