发明名称 |
Solids strainer system for a hydraulic choke |
摘要 |
The invention contemplates a strainer based upon a four-way, two-position rotary cylindrical plug valve having a hollow plug. The normal entry port for the sealing plug of the plug valve is a circular radial hole passing from the exterior of the plug into the interior cavity of the plug. The normal exit port for the sealing plug is a regular array of small holes across from and coaxial with the normal entry hole. The ports for the valve body are in two pairs positioned at 90° from each other, with the axes of the ports lying in the same transverse plane as the ports of the valve plug.
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申请公布号 |
US2005006150(A1) |
申请公布日期 |
2005.01.13 |
申请号 |
US20040880640 |
申请日期 |
2004.06.30 |
申请人 |
POWER CHOKES, L.P. |
发明人 |
SIMS DONALD GLYNN;TAYLOR MICHAEL JAMES;SCHMIDT ROBERT FRANK;SCHMIDT DAVID ANTHONY;MCCASKILL JOH WALTON |
分类号 |
E21B21/06;E21B21/10;F16K11/085;F16K47/04;(IPC1-7):E21B21/12 |
主分类号 |
E21B21/06 |
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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