发明申请
- 专利标题： ANTI-SURGE ACTUATOR
- 专利标题（中）： 防过敏执行器
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申请号： US11794562申请日： 2005-12-27
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公开(公告)号： US20090127485A1公开(公告)日： 2009-05-21
- 发明人: Jorgen Wessel , Vidar Sten-Halvorsen , Torstein Kasin , John A. Johansen
- 申请人： Jorgen Wessel , Vidar Sten-Halvorsen , Torstein Kasin , John A. Johansen
- 申请人地址： NO Kongsberg
- 专利权人： FMC KONGSBERG SUBSEA AS
- 当前专利权人： FMC KONGSBERG SUBSEA AS
- 当前专利权人地址： NO Kongsberg
- 优先权： NO20045720 20041230
- 国际申请： PCT/NO2005/000486 WO 20051227
- 主分类号： F16K31/04
- IPC分类号： F16K31/04
摘要：
The present invention describes a valve actuator having a first motor (30) for moving a valve element and a second motor (30′) for energizing a failsafe spring (130). The second motor is operated independently from the first, thus allowing the valve element to be moved between its open and closed positions while the spring is energized. In an emergency, the spring will be de-energized and move the valve element to its failsafe position no matter the position of the valve element.
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