| 发明名称 |
Flow control valve and method |
| 摘要 |
A method for controlling fluid flow through a passageway includes slidably disposing a piston having a conduit that reduces the flow area through the passageway in the passageway and selectively closing the conduit of the piston by moving at least one of the piston and a plug.
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| 申请公布号 |
US7527070(B2) |
申请公布日期 |
2009.05.05 |
| 申请号 |
US20070931824 |
申请日期 |
2007.10.31 |
| 申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
BRENNAN, III WILLIAM E.;HARRIGAN EDWARD;DEL CAMPO CHRISTOPHER S. |
| 分类号 |
F16K17/26 |
主分类号 |
F16K17/26 |
| 代理机构 |
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代理人 |
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| 主权项 |
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