发明授权
US6113373A Scroll compressor having an annular seal for a stationary scroll
pressure receiving surface
有权
具有用于固定涡旋压力接收表面的环形密封件的涡旋式压缩机
- 专利标题: Scroll compressor having an annular seal for a stationary scroll pressure receiving surface
- 专利标题(中): 具有用于固定涡旋压力接收表面的环形密封件的涡旋式压缩机
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申请号: US274207申请日: 1999-03-23
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公开(公告)号: US6113373A公开(公告)日: 2000-09-05
- 发明人: Hiroyuki Fukuhara , Shigeru Muramatsu , Hidenobu Shintaku , Noboru Iida
- 申请人: Hiroyuki Fukuhara , Shigeru Muramatsu , Hidenobu Shintaku , Noboru Iida
- 申请人地址: JPX Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX8-023579 19960209
- 主分类号: F04C18/02
- IPC分类号: F04C18/02 ; F04C27/00 ; F04C29/00 ; F04C29/02 ; F04C18/04
摘要:
In a scroll compressor, a stationary scroll is pressed toward a movable scroll by a back pressure of a discharge fluid compressed by a compression mechanism, and wear powder, produced from an annular seal (which receives the pressure of the discharge fluid) as a result of precession of the stationary scroll, is arrested, thereby achieving the scroll compressor high in efficiency and reliability. A pressure-receiving surface for receiving a back pressure of the discharge fluid so as to press the stationary scroll toward the movable scroll is formed on that portion of the stationary scroll disposed around a communication port which is formed in the stationary scroll, and communicates with a discharge port. An annular seal is provided to form a seal between the stationary scroll and an upper frame around a region of communication between the communication port and the discharge port in such a manner as to satisfy a necessary annular sealing surface area, and a circumferential recess is provided on that side lower in pressure than this annular seal.