发明名称 |
Rotary valve actuators having partial stroke damping apparatus |
摘要 |
Rotary valve actuators having partial stroke damping apparatus are described herein. An example rotary valve actuator described herein includes a housing containing a first piston and a second piston opposite the first piston, where the pistons move in opposite directions to rotate a shaft of the rotary valve actuator. A damper is operatively coupled to at least one of the first piston or the second piston to slow the movement of the piston for only a portion of a stroke of the rotary valve actuator.
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申请公布号 |
US8567752(B2) |
申请公布日期 |
2013.10.29 |
申请号 |
US20090552814 |
申请日期 |
2009.09.02 |
申请人 |
TER HORST GERARD;VAN DORP ERWIN;EMERSON PROCESS MANAGEMENT, VALVE AUTOMATION INC. |
发明人 |
TER HORST GERARD;VAN DORP ERWIN |
分类号 |
F16K31/12 |
主分类号 |
F16K31/12 |
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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