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公开(公告)号：US5390693A
公开(公告)日：1995-02-21
申请号：US185941
申请日：1994-01-14
申请人： Svend E. Thomsen
发明人： Svend E. Thomsen
CPC分类号： B62D5/093 , Y10T137/2562
摘要： A flow amplifier (1) with an inlet (4) and an outlet (5) is provided, between which a first branch (6), through which a flow of a fluid to be amplified is flowing, with a first throttling device (8), the throttle resistance of which is adjusted in dependence on the pressure across and by the flow rate through the first throttling device, and a second branch (7) with a second throttling device (11), the throttle resistance of which is adjusted in dependence on the throttle resistance of the first throttling device. In a flow amplifier of that kind, the amplification factor is intended to be made independently of pressure losses in the generation of the flow to be amplified. For that purpose, at least one pressure-divider (14, 15; 17, 18) with a central take-off point (16; 19) is provided, which is supplied by a pressure difference between inlet (4) and outlet (5), the pressure at the central take-off point (15, 19) controlling the flow rate through the second throttling device (11).
摘要翻译： PCT No.PCT / DK92 / 00216 Sec。 371日期1994年1月14日 102（e）日期1994年1月14日PCT提交1992年7月6日PCT公布。 出版物WO93 / 03946 日期为1993年3月4日。具有入口（4）和出口（5）的流量放大器（1）设有第一分支（6），待放大流体流动通过该第一分支（6） 具有第一节流装置（8），其节流电阻根据跨过第一节流装置的流量和通过第一节流装置的流量以及具有第二节流装置（11）的第二分支（7）进行调节， 其节流阻力根据第一节流装置的节流阻力来调节。 在这种流量放大器中，放大系数意在独立于在要放大的流的产生中的压力损失。 为此，提供具有中心起飞点（16; 19）的至少一个分压器（14,15; 17,18），其由入口（4）和出口（5）之间的压力差 ），控制通过第二节流装置（11）的流量的中央起飞点（15,19）处的压力。
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2.发明授权Apparatus for controlling the movement of hydraulically movable work equipment and a path control arrangement 失效用于控制液压可移动工作设备的运动的装置和路径控制装置
公开(公告)号：US5257177A
公开(公告)日：1993-10-26
申请号：US763891
申请日：1991-09-23
申请人： Michael Bach , Kjeld Aagaard , Torben Juul , Hans E. Fogh , Svend E. Thomsen , Helge S. Plougsgaard , John Kristensen , Bent Larsen
发明人： Michael Bach , Kjeld Aagaard , Torben Juul , Hans E. Fogh , Svend E. Thomsen , Helge S. Plougsgaard , John Kristensen , Bent Larsen
IPC分类号： B25J9/10 , B25J19/06 , B66C13/18 , B66C23/00 , B66F9/065 , B66F9/20 , B66F9/24 , E02F3/43 , E02F9/20 , G05D3/12 , G06F15/20 , E02F3/32
CPC分类号： B66F9/20 , B66C13/066 , B66C13/18 , E02F3/433 , E02F3/437
摘要： Apparatus for controlling the movement of hydraulically movable work equipment that is arranged at the end of a length-adjustable and pivotable arm, along a substantially rectilinear path of movement, the work equipment being moved with the assistance of hydraulic drive units that act on the arm in dependence on input control signals that determine the path of movement. Even in the case of non-ideal control loops for the control of the drive units, it is intended that the work equipment be moved along a desired path. For that purpose, starting from an actual position of the work equipment, a sequence of desired positions in the path of movement is ascertained and the work equipment is moved from an actual position to the next desired position, the movement into the next position not being initiated until the work equipment is located in a predetermined tolerance band about the preceding position.
摘要翻译： 用于控制液压可移动工作设备的运动的装置，其布置在长度可调节和可枢转的臂的端部沿着基本上直线的运动路径，工作设备在作用于臂的液压驱动单元的帮助下移动 取决于确定运动路径的输入控制信号。 即使在用于控制驱动单元的非理想控制回路的情况下，也可以将工作设备沿所需的路径移动。 为此，从工作设备的实际位置开始，确定运动路径中的期望位置的顺序，并且将工作设备从实际位置移动到下一个所需位置，而不是 开始直到工作设备围绕前一位置位于预定公差带中。
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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：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：US4597725A
公开(公告)日：1986-07-01
申请号：US692189
申请日：1985-01-17
摘要： A ring and star type gear set is disclosed with recessed passages 32 that serve to communicate the fluid chambers about the line of eccentricity.
摘要翻译： 公开了一种环形和星形齿轮组，其具有用于围绕偏心线连通流体室的凹进通道32。
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公开(公告)号：US4548035A
公开(公告)日：1985-10-22
申请号：US441105
申请日：1982-11-12
CPC分类号： B62D5/09
摘要： 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.
摘要翻译： 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。
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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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8.发明授权Hydraulic control apparatus for servo-motor particularly for vehicle steering 失效用于伺服电机的液压控制装置，特别适用于车辆转向
公开(公告)号：US4266464A
公开(公告)日：1981-05-12
申请号：US912209
申请日：1978-06-05
IPC分类号： B62D5/09 , F15B13/042
CPC分类号： B62D5/09 , Y10T137/86984
摘要： The invention relates to hydraulic control apparatus for a servomotor of the type utilized for vehicle steering systems. Such apparatus has a control circuit controlled by a manually operated device such as a steering wheel and a power circuit connected between the servomotor and a power source such as a hydraulic pump. The power circuit includes resetting apparatus for throttling the return flow branch in a manner so that forces applied to the servomotor in the same direction as actuation are absorbed with a minimum of reactionary movement by the valves on the return flow side of the apparatus.
摘要翻译： 本发明涉及一种用于车辆转向系统的伺服电机的液压控制装置。 这种装置具有由诸如方向盘的手动操作装置和连接在伺服电动机和诸如液压泵的电源之间的电力电路控制的控制电路。 电源电路包括用于以回流流量分支节流的复位装置，使得以与致动相同的方向施加到伺服电动机的力被装置的回流侧上的阀的最小反应运动吸收。
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公开(公告)号：US5275251A
公开(公告)日：1994-01-04
申请号：US804932
申请日：1991-12-11
IPC分类号： B62D5/09 , B62D5/093 , B62D5/32 , B62D6/00 , B62D113/00 , B62D117/00 , B62D123/00 , B62D5/06
摘要： A hydraulic steering system having apparatus for compensating for steering angle error. On displacement of a steering handwheel, the steering handwheel angle, the steering motor angle and the steering handwheel speed are ascertained. The fluid flow between a steering control device and a steering motor is changed via auxiliary flow paths in dependence on the steering angle error. At every steering handwheel speed and every steering angle error, the change of the fluid flow is effected in dependence on the steering handwheel speed and the steering angle error. A multiplier multiplies the outputs of a difference-generating means and a differentiator together, the output of the multiplier being connected by way of a proportional element to a valve control device connected to pass signals to a valve arrangement which controls the auxiliary flow paths.
摘要翻译： 一种具有用于补偿转向角误差的装置的液压转向系统。 在转向手轮的位移时，确定转向手轮角度，转向电机角度和转向手轮速度。 根据转向角误差，通过辅助流路来改变转向控制装置和转向电动机之间的流体流动。 在每个转向手轮速度和每个转向角误差时，根据转向手轮速度和转向角误差来实现流体流量的变化。 乘法器将差产生装置和微分器的输出相乘在一起，乘法器的输出通过比例元件连接到与控制辅助流动路径的阀装置相连接的阀控制装置。
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公开(公告)号：US4981159A
公开(公告)日：1991-01-01
申请号：US442447
申请日：1989-11-27
CPC分类号： F15B13/0417 , Y10T137/8671 , Y10T137/87185
摘要： A hydraulic control valve and sensing mechanism for controlling flow between a motor and a pump and container that includes a slide mounted in a housing bore for movement between a neutral position and two operative position. The slide has a central collar separated from end collars by slide grooves, profilings on diametric opposite sides of the slide grooves intersecting each groove. The housing bore has a pump groove supplied with pressure medium, axially opposite motor grooves connectable to motor conduits, and axially opposite the motor grooves from the pump grooves there are container grooves connectable to the container. The pressure sensing mechanism includes at least one pressure sensing orifice that is connected to the pressure to be sensed in an operative position of the slide but not being fluidly connected thereto when the slide is in its neutral position.
摘要翻译： 一种用于控制电动机和泵和容器之间的流动的液压控制阀和感测机构，其包括安装在壳体孔中的滑块，用于在空档位置和两个操作位置之间移动。 滑块具有通过滑动槽与端部环分开的中心轴环，在与每个凹槽相交的滑动槽的直径相对侧上的剖面。 容纳孔具有供应有压力介质的泵槽，与马达导管连接的轴向相对的马达槽，并且与泵槽轴向相对的马达槽具有可连接到容器的容器槽。 压力感测机构包括至少一个压力感测孔口，当压载体处于其中立位置时，该压力感测孔口连接到滑动件的操作位置中的被感测压力，但不与其流体连接。
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