发明名称 |
Valve with variable secondary orifice |
摘要 |
A valve comprising inlet means having a bore, a seat at one end of the bore and an annular outer edge portion. A primary orifice is defined by a valve member and the seat, and a secondary orifice is defined by the valve member and the outer edge portion. The valve member has a shroud portion formed to cause the cross sectional flow area of the secondary orifice to increase at a nonlinear rate as the valve member is raised from the seat. With these parts formed to provide a huddling chamber communicating between the primary and secondary orifices, the valve has a quick full opening, non-vibratory characteristic suitable for spring-loaded liquid pressure safety relief service.
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申请公布号 |
US4130130(A) |
申请公布日期 |
1978.12.19 |
申请号 |
US19760741667 |
申请日期 |
1976.11.15 |
申请人 |
CROSBY VALVE & GAGE COMPANY |
发明人 |
STEWART, ROBERT D.;SCHRETTER, JAMES A. |
分类号 |
F16K17/04;(IPC1-7):F16K17/20 |
主分类号 |
F16K17/04 |
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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