COUPLING APPARATUS FOR USE WITH ELECTRIC ACTUATORS
摘要
Coupling apparatus for use with electric actuators (102) are described herein. An example coupling apparatus described herein includes a coupling assembly (106) to operatively couple a fluid flow control member (116) of a fluid valve (104) and a drive system of the electric actuator. Rotation of the drive system in a first rotational direction (304) causes the coupling assembly to move in a first rectilinear direction and rotation of the drive system in a second rotational direction causes the coupling assembly to move in a second rectilinear direction opposite the first direction. The coupling assembly includes a biasing element (206) that is to be deflected to provide a seat load to the fluid flow control member when the fluid flow control member is in sealing engagement with a valve seat of the fluid valve and electric power to the electric actuator is removed.
申请公布号
WO2011059677(A1)
申请公布日期
2011.05.19
申请号
WO2010US53845
申请日期
2010.10.22
申请人
FISHER CONTROLS INTERNATIONAL LLC;SCHADE, ROSS, A.;PESEK, THOMAS;WILKE, GALEN, DALE