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    • 22. 发明授权
    • Hydraulic control apparatus for a servomotor
    • 伺服电机液压控制装置
    • US4548035A
    • 1985-10-22
    • US441105
    • 1982-11-12
    • Svend E. ThomsenThorkild Christensen
    • Svend E. ThomsenThorkild Christensen
    • F15B9/08B62D5/09F15B9/10
    • B62D5/09
    • The invention relates to a steering control unit for a bidirectional servomotor which is connectable to steerable wheels. A steering wheel controlled quantity setting unit of a known type has ports connectable to a pump and a return tank and two control ports through which metered quantities of fluid flow to opposite sides of the servomotor and to other parts of the apparatus for actuating the servomotor. A directional control valve for selectivity directing pressurized fluid from a power circuit to opposite sides of the servomotor is controlled by a control circuit containing the setting unit. A utility valve having pressure regulating and control and power valve capabilities is provided. In cases wherein the quantity setting apparatus is remotely located from the regulating valve the length of the signal channels add to the reaction time. Such reaction time is reduced herein by connecting the metering throttle as a fixed throttle between the regulating valve and quantity setting apparatus so that the regulating valve feeds a substantially constant quantity to the control cicuit, and that the quantity setting apparatus comprises a short circuit path to the tank which closes with an increase in the quantity.
    • 本发明涉及一种用于双向伺服电机的转向控制单元,其可连接到可转向的车轮。 已知类型的方向盘控制量设定单元具有可连接到泵和回流罐的端口和两个控制端口,计量量的流体流过伺服电机的相对侧以及用于致动伺服电动机的装置的其它部分。 用于将加压流体从功率电路选择性地引导到伺服电动机的相对侧的方向控制阀由包含设定单元的控制电路控制。 本发明提供一种具有压力调节和功率阀功能的电力阀。 在数量设定装置远离调节阀的情况下,信号通道的长度增加到反应时间。 这样的反应时间通过将调节阀和量设定装置之间的固定节流阀连接在一起,使得调节阀向控制电路供给基本上恒定的量,并且量设定装置包括短路路径 随着数量的增加关闭的油箱。
    • 30. 发明授权
    • Hydraulic control apparatus for a servo-motor, particularly for vehicle
steering
    • 伺服电机液压控制装置,特别适用于车辆转向
    • US4535678A
    • 1985-08-20
    • US419154
    • 1982-09-16
    • Svend E. ThomsenThorkild Christensen
    • Svend E. ThomsenThorkild Christensen
    • F15B9/08B62D5/07B62D5/087B62D5/09F16K17/22F15B13/042
    • B62D5/09Y10T137/2564
    • The invention relates to a steering control unit for a bidirectional servomotor which is connectable to steerable wheels. A steering wheel controlled quantity setting unit of a known type has ports connectable to a pump and a return tank and two control ports through which metered quantities of fluid flow to opposite sides of the servomotor and to other parts of the apparatus for actuating the servomotor. A directional control valve for selectively directing pressurized fluid from a power circuit to opposite sides of the servomotor is controlled by a control circuit containing the setting unit. A utility valve having the pressure regulating and control and power valve capabilities required for this type of apparatus is characterized by having only a single slide spool for performing all of these functions.
    • 本发明涉及一种用于双向伺服电机的转向控制单元,其可连接到可转向的车轮。 已知类型的方向盘控制量设定单元具有可连接到泵和回流罐的端口和两个控制端口,计量量的流体流过伺服电机的相对侧以及用于致动伺服电动机的装置的其它部分。 用于将加压流体从功率电路选择性地引导到伺服电动机的相对侧的方向控制阀由包含设定单元的控制电路控制。 具有这种类型设备所需的压力调节和功率阀能力的公用阀的特征在于仅具有用于执行所有这些功能的单个滑阀。