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公开(公告)号：US4471808A
公开(公告)日：1984-09-18
申请号：US388125
申请日：1982-06-14
申请人： Svend E. Thomsen , Erik Kyster , Soren N. Sorensen
发明人： Svend E. Thomsen , Erik Kyster , Soren N. Sorensen
CPC分类号： B62D5/083 , Y10T137/86654 , Y10T137/86734 , Y10T137/86751
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4471809A
公开(公告)日：1984-09-18
申请号：US390181
申请日：1982-06-21
申请人： Svend E. Thomsen , Erik Kyster , Soren N. Sorensen
发明人： Svend E. Thomsen , Erik Kyster , Soren N. Sorensen
CPC分类号： B62D5/083 , F16K3/34 , F16K47/045 , Y10T137/86654 , Y10T137/86734 , Y10T137/86751
摘要： 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. A characteristic of the curved surfaces is that they are formed with exponentially shaped sections.
摘要翻译： 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。 弯曲表面的特征是它们以指数形状的部分形成。
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公开(公告)号：US4575321A
公开(公告)日：1986-03-11
申请号：US756659
申请日：1985-07-19
申请人： Hans C. Petersen , Erik Kyster , Svend E. Thomsen
发明人： Hans C. Petersen , Erik Kyster , Svend E. Thomsen
CPC分类号： B62D5/097 , Y10T137/86638
摘要： The invention relates to a hydrostatic steering control device of the type having two motor ports connectable to a servomotor and a metering unit for metering the flow of fluid to or from the servomotor in accordance with the rotational movement of a steering wheel for operating the control device. The invention is directed to a way of balancing the distributing valve of the control device by subjecting opposite sides thereof to high and intermediate pressure zones and providing a throttle gap between the high and intermediate pressure zones and a second oppositely acting throttle gap between the intermediate pressure zone and a third zone of lower pressure.
摘要翻译： 本发明涉及一种具有可连接到伺服电动机的两个电动机端口和用于根据用于操作控制装置的方向盘的旋转运动计量流向或从伺服电动机流出的计量单元的静液压转向控制装置 。 本发明涉及一种通过使控制装置的分配阀对其高压和中压区域进行平衡并在高压区和中压区之间提供节流间隙以及中间压力之间的第二相反作用的节气门间隙 区域和较低压力的第三区域。
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公开(公告)号：US4412415A
公开(公告)日：1983-11-01
申请号：US234778
申请日：1981-02-17
申请人： Svend E. Thomsen , Erik Kyster
发明人： Svend E. Thomsen , Erik Kyster
CPC分类号： B62D5/093
摘要： The invention relates to a hydraulic steering system of the type having a servomotor controlled by a steerable valve assembly which directs metered quantities of pressurized fluid to the servomotor and has a feedback arrangement for stopping the flow of fluid when the steering motion is stopped. The system involves an arrangement wherein the metering unit is arranged downstream from the servomotor and an auxiliary valve is provided for automatically accommodating normal conditions as well as emergency pump failure conditions and overpressure conditions caused by the servomotor reaching an extreme end position in the operation thereof.
摘要翻译： 本发明涉及一种具有由可转向阀组件控制的伺服电动机的液压转向系统，该可转向阀组件将计量的加压流体引导到伺服电动机，并且具有用于在转向运动停止时停止流体流动的反馈装置。 该系统包括一种布置，其中计量单元布置在伺服马达的下游，并且提供辅助阀用于自动地容纳正常状态以及在其操作中由伺服马达到达最终位置引起的应急泵故障条件和超压状态。
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公开(公告)号：US4505109A
公开(公告)日：1985-03-19
申请号：US415485
申请日：1982-08-30
申请人： Svend E. Thomsen , Erik Kyster
发明人： Svend E. Thomsen , Erik Kyster
CPC分类号： B60T1/10 , B60K6/10 , B60T13/04 , Y02T10/6204
摘要： The invention relates to a steering assembly having a bidirectional servomotor of the differential piston type which is connectable to steerable wheels. A directional control valve unit has a spool valve with two collars which cooperates with the housing to form first and second end control chambers and a middle chamber. A power circuit supplies pressurized fluid equally to the end control chambers and a manually operable control pump is operable to selectively and incrementally increase and decrease the pressures in the end chambers in a push-pull mode to effect movement of the servomotor piston in either direction. The control valve has two ports connected to opposite ends of the servomotor with one port providing fixed and constant fluid communication between the first valve chamber and one side of the servomotor. The other valve unit port is cooperable with one of the collars of the spool valve to provide a dual throttling action wherein oppositely acting throttling occurs between the port and the middle and second valve chambers depending on the axial position of the spool valve. Control pressure from the manually operated pump which moves the spool valve incrementally one way or the other causes the throttling collar to either admit additional pressurized fluid to the associated end of the servomotor or release pressurized fluid therefrom to the middle chamber.
摘要翻译： 本发明涉及一种转向组件，该转向组件具有可连接到可转向轮的差动活塞式双向伺服电动机。 方向控制阀单元具有带有两个套环的滑阀，其与壳体配合以形成第一和第二端控制室和中间室。 电源电路将加压流体相等地供应到端部控制室，并且可手动操作的控制泵可操作以在推挽模式中选择性地和递增地增加和减小端部室中的压力，以实现伺服电机活塞沿任一方向的移动。 控制阀具有连接到伺服马达的两端的两个端口，一个端口在第一阀室和伺服马达的一侧之间提供固定和恒定的流体连通。 另一个阀单元端口与滑阀的一个套环配合以提供双重节流动作，其中根据滑阀的轴向位置在端口与中间和第二阀室之间发生相对作用的节流。 来自手动泵的控制压力，其以一种或多种方式逐渐移动滑阀，使得节流环可以将附加的加压流体进入伺服马达的相关端，或者将加压流体从其中释放到中间室。
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公开(公告)号：US4557676A
公开(公告)日：1985-12-10
申请号：US550256
申请日：1983-11-10
申请人： Hans C. Petersen , Erik Kyster , Svend E. Thomsen
发明人： Hans C. Petersen , Erik Kyster , Svend E. Thomsen
CPC分类号： B62D5/097 , Y10T137/86638
摘要： The invention relates to a hydrostatic steering control device of the type having two motor ports connectable to a servomotor and a metering unit for metering the flow of fluid to or from the servomotor in accordance with the rotational movement of a steering wheel for operating the control device. The invention is directed to a way of balancing the distributing valve of the control device by subjecting opposite sides thereof to high and intermediate pressure zones and providing a throttle gap between the high and intermediate pressure zones an a second oppositely acting throttle gap between the intermediate pressure zone and a third zone of lower pressure.
摘要翻译： 本发明涉及一种具有可连接到伺服电动机的两个电动机端口和用于根据用于操作控制装置的方向盘的旋转运动计量流向或从伺服电动机流出的计量单元的静液压转向控制装置 。 本发明涉及一种通过使控制装置的分配阀对其高压和中间压力区域进行平衡并在高压区和中压区之间提供节流间隙的方法，其中间压力之间的第二相反作用的节气门间隙 区域和较低压力的第三区域。
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公开(公告)号：US4462209A
公开(公告)日：1984-07-31
申请号：US351112
申请日：1982-02-22
申请人： Svend E. Thomsen , Erik Kyster
发明人： Svend E. Thomsen , Erik Kyster
CPC分类号： B62D5/09
摘要： The invention relates to hydraulic control unit for a power steering assembly. The unit is of the type having a metering motor and steering wheel actuated valves for directing metered, pressurized fluid to one selected port of a steering servo-motor and drawing fluid from the other port of the servo-motor to a tank. The invention involves a particular regulating valve for directing pressurized fluid to consumer units when the steering control is in neutral.
摘要翻译： 本发明涉及一种用于动力转向组件的液压控制单元。 该单元是具有计量马达和方向盘致动阀的类型，其用于将计量加压流体引导到转向伺服马达的一个选定端口并将流体从伺服马达的另一端口抽出到罐。 本发明涉及一种特定的调节阀，用于在转向控制处于中立状态时将加压流体引导到消费者单元。
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公开(公告)号：US4533303A
公开(公告)日：1985-08-06
申请号：US550319
申请日：1983-11-21
申请人： Hans C. Petersen , Erik Kyster , Svend E. Thomsen
发明人： Hans C. Petersen , Erik Kyster , Svend E. Thomsen
CPC分类号： B62D5/097 , Y10T137/86638
摘要： A geroter hydrostatic steering control is disclosed in which the directional valve is spring biased to a neutral position. The rotor, the commutating valve, the rotor casing and the directional valve are all axially aligned adjacent to each other thus reducing the overall axial length of the device.
摘要翻译： 公开了一种陀螺式静液压转向控制装置，其中方向阀被弹簧偏压到中立位置。 转子，换向阀，转子壳体和方向阀都相互轴向对齐，从而减小了装置的整体轴向长度。
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公开(公告)号：US4432270A
公开(公告)日：1984-02-21
申请号：US261595
申请日：1981-05-07
申请人： Erik Kyster , Svend E. Thomsen
发明人： Erik Kyster , Svend E. Thomsen
摘要： The invention relates to a steering control system for a bidirectional servomotor connectable to steerable wheels. The servomotor may be of the differential type in which a rod extending from one side of the piston thereof causes the effective areas on opposite sides of the piston to be unequal. A steering control unit controlled by a steering wheel has two motor ports connected to opposite sides of the servomotor and pump and tank ports connected to pump and tank units. The steering control unit has a metering motor controlled by the steering wheel which meters fluid to and away from only one side of the servomotor. The steering control unit has oppositely acting valves which may be throttle valves for establishing flow paths for opposite steering directions and the neutral condition.
摘要翻译： 本发明涉及一种用于可连接到可转向轮的双向伺服电动机的转向控制系统。 伺服电动机可以是差速式，其中从其活塞的一侧延伸的杆导致活塞的相对侧上的有效区域不相等。 由方向盘控制的转向控制单元具有连接到伺服电动机的相对侧的两个电动机端口和连接到泵和蓄电池单元的泵和罐端口。 转向控制单元具有由方向盘控制的计量马达，其将流体计量到远离伺服马达的仅一侧。 转向控制单元具有相对作用的阀，其可以是用于建立用于相反转向方向和空档状态的流路的节流阀。
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公开(公告)号：US4372413A
公开(公告)日：1983-02-08
申请号：US204180
申请日：1980-11-05
CPC分类号： B62D5/097 , B62D5/32 , Y10T137/86654 , Y10T137/86662
摘要： The invention relates to a hydrostatic steering device comprising a servo-motor operable in dependence on direction and a control device having connections for a pump, a tank and the servo-motor as well as a valve arrangement which influences the flow of pressure medium from the pump to the servo-motor and from the latter to the tank and having two valve members which are relatively movable against the force of a neutral position spring depending on the comparison of the adjustment of a steering element and the follow-up motion of a metering motor.
摘要翻译： 本发明涉及一种静液压转向装置，其包括可根据方向操作的伺服电机和具有用于泵，罐和伺服电动机的连接的控制装置以及影响来自所述压力介质的压力介质流动的阀装置 泵送到伺服电动机并且从后者泵到罐中并且具有两个阀构件，这两个阀构件可抵抗中立位置弹簧的力相对移动，这取决于转向元件的调节与计量的跟随运动的比较 发动机。
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