-
11.发明授权Damping arrangement for damping the oscillations of valve controlled by pressure fluid 失效用于阻尼由压力流体控制的阀振荡的阻尼装置
公开(公告)号：US4955194A
公开(公告)日：1990-09-11
申请号：US418969
申请日：1989-10-10
IPC分类号： F15B11/00 , F15B11/05 , F15B21/04 , F16K31/00 , F16K31/64 , F16K31/70 , F16K47/00 , F16L55/027
CPC分类号： F15B11/003 , F15B21/045 , F16K31/002 , F16K47/00 , F16L55/027 , F15B2211/20553 , F15B2211/30535 , F15B2211/31576 , F15B2211/324 , F15B2211/40515 , F15B2211/413 , F15B2211/41581 , F15B2211/428 , F15B2211/46 , F15B2211/50545 , F15B2211/8613
摘要： A damping arrangement for damping the oscillations of valves which are controlled by pressure fluid and the control pressure conduits of which contain a throttle. A characteristic is that initial oscillations can be rapidly stabilized independently of the operating temperature of the pressure fluid. This is accomplished by the throttle having a throttle gap of which the height varies oppositely to the temperature of the pressure fluid so as to compensate fully or partially for changes in the hydraulic resistance that are occasioned by the temperature. The throttle gap is mostly traversed by laminar flow and consequently there is a high hydraulic throttling resistance even at low speeds of flow. The throttle is therefore also adapted effectively to damp small oscillations of the valve element so that the initial oscillations are rapidly stabilized.
摘要翻译： 一种阻尼装置，用于阻尼由压力流体控制的阀的振荡，并且其控制压力管道包含油门。 其特征是初始振荡可以独立于压力流体的操作温度而迅速稳定。 这是通过节气门实现的，其节气门间隙的高度与压力流体的温度相反地变化，以便完全或部分地补偿由温度引起的液压阻力的变化。 油门间隙主要是通过层流运动，因此即使在低流速下也存在高液压节流阻力。 因此，节气门也有效地适应于阻止阀元件的小振荡，使得初始振荡快速稳定。
-
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。
-
13.发明授权Hydraulic control apparatus for a servo-motor, particularly for vehicle steering 失效伺服电机液压控制装置，特别适用于车辆转向
公开(公告)号：US4535678A
公开(公告)日：1985-08-20
申请号：US419154
申请日：1982-09-16
CPC分类号： B62D5/09 , Y10T137/2564
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 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.
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。 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。
-
公开(公告)号：US4502855A
公开(公告)日：1985-03-05
申请号：US550317
申请日：1983-11-10
申请人： Hans C. Petersen , Svend E. Thomsen
发明人： Hans C. Petersen , Svend E. Thomsen
摘要： A gerotor type star and ring gear machine in which control orifices in the star gear alternatively register with ports in the end wall. The star gear is formed from a series of plates and has two sets of control orifices formed therein with one set being diametrically opposed to the second set.
摘要翻译： 星形齿轮齿轮机，其中星形齿轮中的控制孔与端壁中的端口交替地配准。 星形齿轮由一系列板形成，并且具有形成在其中的两组控制孔，一组与第二组直径相对。
-
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。
-
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。
-
公开(公告)号：US5596498A
公开(公告)日：1997-01-21
申请号：US563894
申请日：1995-11-22
申请人： Svend E. Thomsen
发明人： Svend E. Thomsen
CPC分类号： B62D5/09
摘要： 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.
摘要翻译： 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。
-
公开(公告)号：US5337778A
公开(公告)日：1994-08-16
申请号：US40141
申请日：1993-03-30
IPC分类号： F15B11/028 , F15B11/05 , F15B11/16 , F15B13/08 , F16K17/02
CPC分类号： F15B11/165 , F15B2211/205 , F15B2211/30515 , F15B2211/30535 , F15B2211/3111 , F15B2211/323 , F15B2211/6054 , F15B2211/7054 , F15B2211/71 , Y10T137/2597 , Y10T137/263 , Y10T137/87185
摘要： A pressure control valve of the type having pump, tank and load-sensing connections used in conjunction with one or more proportional type valves. In this type of system a load-sensing signal is tapped off from the output side of the proportional valves and conveyed to the load-sensing connection of the pressure control valve. A pressure control valve of the type herein has load-sensing and pressure chambers at opposite ends thereof with a slide valve therebetween which is spring biased towards the pressure chamber and controls the internal flow from the pump connection to the tank connection. The slide valve has an auxiliary change-over type valve which selectively connects the pressure chamber to the pump and load-sensing connections in response to a pressure differential between the pump and load-sensing connections to achieve a pressure balance between the load-sensing chamber and the pressure chamber.
摘要翻译： 一种具有泵，罐和负载传感连接类型的压力控制阀，与一个或多个比例型阀一起使用。 在这种类型的系统中，负载感测信号从比例阀的输出侧分接，并被传送到压力控制阀的负载感测连接。 这种类型的压力控制阀在其相对端具有负载感测和压力室，其间具有一个滑阀，弹簧偏压朝向压力室，并控制从泵连接到罐连接的内部流。 滑阀具有辅助换向阀，其响应于泵和负载感测连接之间的压力差选择性地将压力室连接到泵和负载感测连接，以实现负载感测室 和压力室。
-
公开(公告)号：US5165496A
公开(公告)日：1992-11-24
申请号：US723780
申请日：1991-07-01
摘要： A control valve is opened (moved from its neutral position) by rotation of a steering wheel to conduct fluid from a pump to a steering meter device that controls the amount of fluid fed to a steering motor arrangement. When the steering motor piston has been displaced by a distance corresponding to the angle of rotation of the steering wheel, the control valve is moved by the steering meter device from its opened condition to its neutral position. A pilot valve controlled actuating device is provided to short circuit the steering meter device to permit continued fluid flow from the pump to the steering motor device and provide a mechanical braking force to the meter device to block rotation thereof and thereby the movement of the control valve to its neutral position. The braking mechanism is resiliently urged to a non-braking position.
摘要翻译： 通过旋转方向盘来打开（从其中立位置移动）控制阀，以将流体从泵传导到控制进给转向电动机装置的流体的量的转向计量装置。 当转向马达活塞已经移动与方向盘的旋转角度相对应的距离时，控制阀由转向表装置从其打开状态移动到其中立位置。 提供先导阀控制致动装置以使转向表装置短路以允许持续的流体从泵流向转向电动机装置并且向仪表装置提供机械制动力以阻止其旋转，从而控制阀的运动 到其中立位置。 制动机构被弹性地推动到非制动位置。
-
20.发明授权Dual load-sensing passage adjustable relief valves for hydraulic motor control 失效双负载传感通道可调节安全阀用于液压马达控制
公开(公告)号：US5000001A
公开(公告)日：1991-03-19
申请号：US294657
申请日：1989-01-09
申请人： Thorkild Christensen , Harry S. Nissen , Carsten Christensen , Siegfried Zenker , Svend E. Thomsen
发明人： Thorkild Christensen , Harry S. Nissen , Carsten Christensen , Siegfried Zenker , Svend E. Thomsen
CPC分类号： F15B13/0417 , Y10T137/87169
摘要： 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.
摘要翻译： 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。
-
-
-
-
-
-
-
-
-
搜索结果
29 条记录 (耗时 0.014 秒)
