发明名称 |
Rotary control valve and associated actuator control system |
摘要 |
A rotary control valve and associated actuator control system. An actuator control system comprises a rotary control valve including a generally planar face seal, and an actuator operatively connected to the rotary control valve. Another actuator control system comprises a control valve including multiple faces having multiple ports formed therein. Fluid communication is selectively permitted and prevented between the ports in response to relative displacement between the faces. A differential area is configured to apply a biasing force which maintains sealing engagement between the faces, and which increases in response to an increase in pressure applied to the control valve.
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申请公布号 |
US7921876(B2) |
申请公布日期 |
2011.04.12 |
申请号 |
US20070946332 |
申请日期 |
2007.11.28 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
WRIGHT ADAM D.;ZELLER VINCENT P. |
分类号 |
F15B13/06;F16K11/074 |
主分类号 |
F15B13/06 |
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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