发明名称 |
Method of making a pump having relief valve seat free of direct structural restraint |
摘要 |
A pump includes a coaxially integrated pump bypass/relief valve element of high density polymer material seats against a hard metallic sleeve that is pressed into a first counterbore around the bypass flow channel with an interference fit. That axial end of the sleeve bearing the valve seat face projects, for a substantial proportion of the sleeve length, beyond the first counterbore shoulder into a second counterbore space to provide an annular space around the outside diameter surface of the sleeve to free the seat face end of the sleeve from direct structural restraint.
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申请公布号 |
US6088916(A) |
申请公布日期 |
2000.07.18 |
申请号 |
US19990276624 |
申请日期 |
1999.03.25 |
申请人 |
STANDEX INTERNATIONAL CORP. |
发明人 |
SINGLETERRY, RON C.;ZAVISA, JOHN |
分类号 |
F04C14/26;B23P15/00;F04C15/06;F04C28/26;F16K17/04;(IPC1-7):B23P15/00 |
主分类号 |
F04C14/26 |
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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