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    • 13. 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。
    • 15. 发明授权
    • Hydraulic control apparatus
    • 液压控制装置
    • US4471808A
    • 1984-09-18
    • US388125
    • 1982-06-14
    • Svend E. ThomsenErik KysterSoren N. Sorensen
    • Svend E. ThomsenErik KysterSoren N. Sorensen
    • F15B13/04B62D5/083F16K3/22F16K47/04F16K11/02
    • B62D5/083Y10T137/86654Y10T137/86734Y10T137/86751
    • The invention relates to a hydrostatic steering control unit of the type having valving for an open center neutral position which bypasses pressurized fluid from the pump to the tank when in neutral. During a turning operation with a steering wheel the open center valving is caused to close and the pressurized fluid is directed to one side or the other of a servomotor which is connected to wheels to be steered. The open center valving includes orifices in relatively rotatable elements which are aligned in the neutral position and closed to effect the turning operation. Open center valving can be the cause of noise and cavitation and such valving herein is provided with slot shaped orifices and flat generally wedge shaped throttle passages to minimize the noise and cavitation problems. The throttle passages are defined by curved bounding surfaces having rectangularly shaped outlines.
    • 本发明涉及一种静液压转向控制单元,其具有用于打开中心中立位置的阀门,该中空位置在处于空档状态时将加压流体从泵旁通到储罐。 在使用方向盘的转动操作期间,使打开的中心阀关闭,并且加压流体被引导到连接到要转向的车轮的伺服电机的一侧或另一侧。 敞开的中心阀包括在相对可旋转的元件中的孔,它们在中立位置对准并且被关闭以实现转动操作。 打开的中心阀门可能是噪音和气蚀的原因,此处的阀门设有槽形孔和扁平的大致楔形节流通道,以最大限度地减少噪音和气蚀问题。 节流通道由具有矩形轮廓的弯曲边界表面限定。
    • 17. 发明授权
    • Hydraulic steering arrangement for vehicles
    • 车辆液压转向装置
    • US5596498A
    • 1997-01-21
    • US563894
    • 1995-11-22
    • Svend E. Thomsen
    • Svend E. Thomsen
    • B62D5/09B62D5/093
    • B62D5/09
    • A hydraulic steering arrangement for vehicles is proposed, with a steering motor, a flow amplifier in fluid connection therewith, which amplifies a fluid flow measured by a steering measuring device, at least one sensor, which determines a performance characteristic of the vehicle, and a control device, which changes the amount of fluid supplied to the steering motor in dependence on an output signal of the sensor. In a steering arrangement of that kind, it is intended to correct or adapt the steering behavior to the operational status of the vehicle using simple means. For that purpose, the control device changes the amplification factor of the flow amplifier.
    • 提出了一种用于车辆的液压转向装置,其具有转向马达,与其流体连接的流量放大器,其放大由转向测量装置测量的流体流量,确定车辆的性能特性的至少一个传感器,以及 控制装置,其根据传感器的输出信号改变供给到转向电动机的流体的量。 在这种转向装置中,旨在使用简单的手段来将转向行为改正或适应车辆的操作状态。 为此,控制装置改变流量放大器的放大系数。
    • 20. 发明授权
    • Dual load-sensing passage adjustable relief valves for hydraulic motor
control
    • 双负载传感通道可调节安全阀用于液压马达控制
    • US5000001A
    • 1991-03-19
    • US294657
    • 1989-01-09
    • Thorkild ChristensenHarry S. NissenCarsten ChristensenSiegfried ZenkerSvend E. Thomsen
    • Thorkild ChristensenHarry S. NissenCarsten ChristensenSiegfried ZenkerSvend E. Thomsen
    • F15B11/00F15B11/05F15B13/04
    • F15B13/0417Y10T137/87169
    • There is provided control apparatus for controlling fluid flow between a bidirectional motor, a pump and a container, and includes a control valve that has a slide operative between neutral and first and second operative positions. A compensating valve is provided in the supply conduit that holds the upstream pressure drop at the control valve substantially constant and is controlled by load pressure sensing circuitry. The load pressure circuitry includes two branches that are connected through a change over valve to the compensating valve. There is provided an over pressure valve and a throttle point in each branch, each branch being connected to a load pressure sensing orifice of the control valve housing and fluidly connected through the slide to one of the housing motor orifices, the one depending upon whether the slide is in its first or in its second position. The circuitry permits the actuating pressure for operating the motor in one direction to be different from that for operating it in the other direction.
    • 提供了用于控制双向电动机,泵和容器之间的流体流动的控制装置,并且包括控制阀,该控制阀具有在中性位置和第一和第二操作位置之间运行的滑动件。 在供应管道中设置补偿阀,其将控制阀上的上游压降保持恒定,并由负载压力感测电路控制。 负载压力电路包括通过换向阀连接到补偿阀的两个分支。 在每个分支中设置有过压阀和节流点,每个分支连接到控制阀壳体的负载压力感测孔,并且通过滑块流体地连接到壳体电动机孔中的一个,取决于是否 幻灯片处于第一位或第二位。 电路允许在一个方向上操作电动机的致动压力与在另一个方向上操作电动机的操作压力不同。