发明名称 |
DREHENDER VENTILAKTOR MIT HOHEM-NIEDRIGEM-HOHEM DREHMOMENT |
摘要 |
A rotary valve actuator for fluid control valves having improved actuator linkage matching the torque requirements of most rotary shaft valves. A link member is pivotally interconnected to a linear movable actuating member and to a rotatable lever. The link member enables a high actuator torque to be developed and provided during the times when the valve requires a high torque, and a low actuator torque during other times when the valve only requires a lower torque. A high-low-high actuator torque is provided matching the high-low-high torque requirements of most rotary valves. |
申请公布号 |
DE69807234(D1) |
申请公布日期 |
2002.09.19 |
申请号 |
DE1998607234 |
申请日期 |
1998.04.17 |
申请人 |
FISHER CONTROLS INTERNATIONAL INC., CLAYTON |
发明人 |
EGGLESTON, WAYNE |
分类号 |
F16K31/52;(IPC1-7):F16K31/52 |
主分类号 |
F16K31/52 |
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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