发明名称 |
VALVE OPERATIOR ASSEMBLY WITH ANTI-BACKDRIVING DEVICE |
摘要 |
A high efficiency operator assembly is for a valve for controlling flow through a passage, the valve including a closure element movable between a closed position at which the member substantially obstructs the passage and an open position. The operator assembly includes a movable stem having opposing ends, a first end being connectable with the closure element such that displacement of the stem moves the closure element between the open and closed positions. A stem driver is rotatable about a central axis, engaged with the stem, and configured to displace the stem when the driver angularly displaces about the axis and an input device is rotatable about the axis. A lock mechanism or a clutch is engageable with the stem, the stem driver, or the input device to retain the closure element at a particular position when the input device remains at a particular angular position about the input axis. |
申请公布号 |
WO2012088008(A1) |
申请公布日期 |
2012.06.28 |
申请号 |
WO2011US65976 |
申请日期 |
2011.12.20 |
申请人 |
AKTIEBOLAGET SKF;NAMOUS, ALI, A.;STAHL, CHARLES |
发明人 |
NAMOUS, ALI, A.;STAHL, CHARLES |
分类号 |
F16K3/00 |
主分类号 |
F16K3/00 |
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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