发明授权
- 专利标题： High-pressure seal in piston
- 专利标题（中）： 活塞高压密封
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申请号： US245095申请日： 1981-03-18
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公开(公告)号： US4346903A公开(公告)日： 1982-08-31
- 发明人: Siegfried Heiermann
- 申请人： Siegfried Heiermann
- 申请人地址： DEX Duisburg
- 专利权人： Klockner-Werke AG
- 当前专利权人： Klockner-Werke AG
- 当前专利权人地址： DEX Duisburg
- 优先权： DEX8007319[U] 19800318
- 主分类号： F16J15/32
- IPC分类号： F16J15/32 ; F16J15/56 ; F16J15/18
摘要：
A high-pressure seal having a dynamic seal ring and a static seal ring supported by a backup ring is improved upon such that support ring is a one-piece construction having sealing chambers respectively defined together with the bore wall of the cylinder with the piston recess for the dynamic and static seal rings. The seal chamber for the static seal ring is formed to induce a stretching of this ring when the high-pressure seal is assembled in place, whereby the seal between the piston and cylinder is improved as the static seal ring is stretched to provide a tight seal between the backup ring and the piston.
公开/授权文献
- US5507440A Mixing method for material one of which is in packaged form 公开/授权日：1996-04-16
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