发明授权
- 专利标题: Two-piece valve stem seal
- 专利标题(中): 两片阀杆密封
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申请号: US12469195申请日: 2009-05-20
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公开(公告)号: US09500106B2公开(公告)日: 2016-11-22
- 发明人: Rory S. Pawl , Patrick L. Scheib , John A. London
- 申请人: Rory S. Pawl , Patrick L. Scheib , John A. London
- 申请人地址: US MI Plymouth
- 专利权人: Freudenberg—NOK General Partnership
- 当前专利权人: Freudenberg—NOK General Partnership
- 当前专利权人地址: US MI Plymouth
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 代理商 Daniel J. Sepanik, Esq.
- 主分类号: F01L3/08
- IPC分类号: F01L3/08 ; F01L3/10 ; F16J15/32
摘要:
A valve stem seal utilizes a multi-piece construction to reduce the required manufactured tolerances and/or improve the stress handling capabilities. The valve stem seal can include a first member or can which can be assembled to a second member or spring seat. The can and/or spring seat can have a plurality of axially extending resilient fingers that are biased such that when assembled the fingers are bent against the bias due to the engagement between the can and the spring seat. The fingers on the spring seat allow the spring seat to bend or move relative to the can to accommodate the loading of a valve spring on the spring seat. The use of resilient fingers on the can and/or the spring seat reduces the manufacturing tolerances required for the valve stem seal.
公开/授权文献
- US20100295252A1 Two-Piece Valve Stem Seal 公开/授权日:2010-11-25
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