公开(公告)号：EP0349723A1

公开(公告)日：1990-01-10

申请号：EP89107352.0

申请日：1989-04-24

申请人： AlliedSignal Inc.

发明人： Terp, Leslie S. c/o Allied-Signal Inc.

IPC分类号： B64C13/40 ,  F15B9/14 ,  H01F7/16

CPC分类号： B64C13/40 ,  B64C13/38 ,  F15B9/09 ,  H01F7/122 ,  H01F7/1615 ,  Y10T137/86614

摘要： An electropneumatic rotary actuator (10) has proportional fluid valving (44) providing introduction and exhaust of pressurized fluid to and from a working chamber (45) of the actuator. By control of the admission angle and venting angle of the fluid pressure and flow with respect to top dead center and bottom dead center of a working piston (28) of the actuator both the torque level and gas consump­tion rates of the actuator may be controlled. Further by modulating the average working fluid pressure within the actuator the stiffness or resistance to backdriving of the actuator may be controlled. A proportional linear elec­trical solenoid (48-86) is disclosed and employed in the actuator of the present invention to drive a double-acting closed-centered valve device (88-116). Because of its lightweight, relatively simplicity, high stiffness to backdriving, and relatively low gas consumption rate, the present actuator is expected to find application in airborne vehicles.

摘要翻译： 电动气动旋转致动器（10）具有成比例的流体阀（44），用于将加压流体引入和排出到致动器的工作室（45）。 通过控制致动器的工作活塞（28）的上止点和下止点的流体压力和流动的入口角和排气角，可以控制致动器的扭矩水平和气体消耗速率。 此外，通过调节致动器内的平均工作流体压力，可以控制致动器的反向驱动的刚度或阻力。 在本发明的致动器中公开并采用比例线性电磁螺线管（48-86）来驱动双作用闭式中心阀装置（88-116）。 由于其重量轻，相对简单，高刚性反向驱动和相对较低的气体消耗率，本发明的致动器预期可用于机载车辆。