发明名称 |
Variable port valve plug |
摘要 |
A valve assembly has a valve body having an inlet passageway and an outlet passageway. A flow orifice is disposed within valve body and provides flow communication between the inlet passageway and outlet passageway. A valve seat cooperates with the flow orifice and a variable port valve plug to open and close the valve. The valve plug has a plug body with a conically-shaped smooth tapered wall, a proximal end, and a domed distal end surface that smoothly transitions into the tapered wall. The valve plug is movable between an open position out of contact with the valve seat and a closed position borne against the valve seat. A maximum open position of the valve plug relative to the valve seat can be selectively changed to vary flow characteristics through the valve assembly.
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申请公布号 |
US6769666(B2) |
申请公布日期 |
2004.08.03 |
申请号 |
US20020145441 |
申请日期 |
2002.05.14 |
申请人 |
FISHER CONTROLS INTERNATIONAL LLC |
发明人 |
HALL RANDY J.;BURR RONALD C. |
分类号 |
F16K25/00;F16K1/38;F16K1/52;F16K1/54;(IPC1-7):F16K47/00;F16L55/02 |
主分类号 |
F16K25/00 |
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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