发明名称 |
Valve interface having mismatched radii |
摘要 |
A valve interface provides a zero leak function for an area control valve. The valve interface is established by sealing contact between a concave valve face and a convex valve seat having mismatched radii. The concave valve face is formed on a valve element slidably disposed in a bore of a housing and the convex valve seat is formed in the housing and intersects with the bore.
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申请公布号 |
US5950989(A) |
申请公布日期 |
1999.09.14 |
申请号 |
US19980061517 |
申请日期 |
1998.04.16 |
申请人 |
CATERPILLAR INC. |
发明人 |
HAJEK, JR., THOMAS J.;TOLAPPA, SRIKRISHNAN T. |
分类号 |
F16K1/34;F16K25/00;(IPC1-7):F16K25/00 |
主分类号 |
F16K1/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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