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    • 2. 发明申请
    • SERVO ACTUATORS
    • 伺服执行器
    • WO2016075491A1
    • 2016-05-19
    • PCT/GB2015/053463
    • 2015-11-13
    • BLAGDON ACTUATION RESEARCH LIMITED
    • COLLINS, Andrew John
    • F15B18/00
    • F15B18/00B64C27/64F15B9/09F15B13/0406F15B2211/8757
    • A servo actuator (1) comprises an actuator housing (4); an actuator member (2) located within the actuator housing (4) and at least one spool (8) located in a cavity (6) formed within the actuator housing (4). The housing (4) also comprises a first set of internal ports including an inlet port (P), an outlet port (T) and a pair of control ports (SI, S2), the inlet port (P) being arranged for connection to a first pressurised supply and a second set of internal ports comprising an inlet port (P' ), an outlet port (T' ) and a pair of control ports (SI', S2'), the inlet port (P' ) being arranged for connection to a second pressurised supply. In use, movement of the spool (8) alters the flow path of fluid through the first and second set of internal ports to control the movement of the actuator member (2).
    • 伺服致动器(1)包括致动器壳体(4); 位于致动器壳体(4)内的致动器构件(2)和位于致动器壳体(4)内形成的空腔(6)中的至少一个卷轴(8)。 壳体(4)还包括第一组内部端口,包括入口端口(P),出口端口(T)和一对控制端口(SI,S2),入口端口(P) 第一加压源和第二组内部端口,包括入口端口(P'),出口端口(T')和一对控制端口(SI',S2'),入口端口(P')布置 用于连接到第二加压电源。 在使用中,阀芯(8)的移动改变通过第一和第二组内部端口的流体的流动路径,以控制致动器构件(2)的移动。