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41. 发明授权

US5404722A Torque generator with reduced backlash 失效
标题翻译：扭矩发生器减少了间隙
公开(公告)号：US5404722A
公开(公告)日：1995-04-11
申请号：US181689
申请日：1994-01-14
申请人： Makoto Nagao , Dwight B. Stephenson
发明人： Makoto Nagao , Dwight B. Stephenson
IPC分类号： B62D5/10 , B62D5/097 , F15B9/14 , F16D31/02 , F15B9/10
CPC分类号： B62D5/097
摘要： A torque generator steering device (10) is disclosed of the type including a gerotor displacement mechanism (19) and valving (9), by the rotation of an input shaft (1) results in a hydrostatic power assist to an output shaft (2). In parallel with the power assist path, the input shaft (1) is connected by a torsion bar (15) to a connecting shaft (3) which, in turn, is connected to the output shaft (2). The connections between the torsion bar (15) and the connecting shaft (3), and between the connecting shaft (3) and the output shaft (2) are substantially zero backlash mechanical connections, thus providing a main torque transmitting path in parallel with the power assist path. Below a predetermined level of input torque, rotation of the input shaft (1) results in an immediate and corresponding rotation of the output shaft (2), thus providing a manual steering mode.
摘要翻译：通过输入轴（1）的旋转，公开了包括摆轮运动机构（19）和阀（9）的类型的扭矩发生器转向装置（10），从而对输出轴（2）进行静液力助力，。与动力辅助路径平行地，输入轴（1）通过扭杆（15）连接到连接轴（3），连接轴（3）又连接到输出轴（2）。扭杆（15）和连接轴（3）之间以及连接轴（3）和输出轴（2）之间的连接基本上为零间隙机械连接，从而提供主扭矩传递路径与动力辅助路径。低于预定水平的输入扭矩，输入轴（1）的旋转导致输出轴（2）的立即和相应的旋转，从而提供手动转向模式。

42. 发明授权

US5020417A Rotary servo actuator with internal valve 失效
标题翻译：带内阀的旋转伺服执行机构
公开(公告)号：US5020417A
公开(公告)日：1991-06-04
申请号：US568277
申请日：1990-08-15
申请人： Paul P. Weyer
发明人： Paul P. Weyer
IPC分类号： F15B13/044 , F15B9/12 , F15B9/14
CPC分类号： F15B9/12 , Y10T74/19795
摘要： A fluid-powered servo actuator having a body, an annular piston, and a shaft extending co-axially therewithin. The shaft has an interior chamber located within the body with two fluid channels extending to the chamber in which the piston is mounted. One channel communicates with each side of the piston. A valve spool is positioned in the shaft chamber, and a cam follower or threads are used to longitudinally move the valve spool therewithin in response to its selected rotation. The valve spool has a pair of valve lands which, when in a neutral position, close the two channels. When the valve spool is moved longitudinally, pressurized fluid is communicated with one or the other of the channels to cause the piston to move longitudinally. Splines or rollers convert the longitudinal movement of the piston into rotational movement of the shaft. The cam follower or threads cause the resulting rotational movement of the shaft to move the valve spool back to the neutral position when the shaft has rotated by an amount and in a direction corresponding to the selected amount and direction the valve spool was rotated.

43. 发明授权

US4977816A Hydraulic motor control system with rotating servo-valve 失效
标题翻译：带旋转伺服阀的液压马达控制系统
公开(公告)号：US4977816A
公开(公告)日：1990-12-18
申请号：US502577
申请日：1990-03-30
申请人： Werner Kuttruf
发明人： Werner Kuttruf
IPC分类号： F15B9/14
CPC分类号： F15B9/14 , Y10T137/86654 , Y10T137/86662
摘要： A hydraulic control mechanism to control operating elements, such as a hydraulic motor, or hydraulic cylinder, employing presetting of a set point, for example via a stepping motor, and mechanical feedback of an actual value. Functional elements are provided in the form of rotary pistons that fit inside one another, rotating relative to one another, and serving for the sensitive regulation of the direction and quantity of a pressure medium stream that is supplied from a pressure medium source to the operting element and flows back therefrom to the tank. One rotary piston is positively connected with the presetting of the set point, and the other rotary piston is positively connected with the operating element for the mechanical actual value feedback. In this way, in contrast to known control mechanisms where a slide or seat valve is actuated by a longitudinal movement, the rotational movement of the set point and actual value are directly compared with one another. This results in a considerably greater precision both statically (positioning precision, concentricity) as well as dynamically (sequence trueness, path deviation). The control mechanism is a better overload safety device, has a simpler construction, and is more economical.
摘要翻译：用于控制诸如液压马达或液压缸的操作元件的液压控制机构，其采用例如经由步进马达预设的设定点和实际值的机械反馈。功能元件以旋转活塞的形式提供，该旋转活塞彼此相配合地相对于彼此旋转，并且用于敏感地调节从压力介质源向操作元件供应的压力介质流的方向和数量并从其返回到罐。一个旋转活塞与设定点的预置点正确连接，另一个旋转活塞与用于机械实际值反馈的操作元件正确连接。以这种方式，与通过纵向移动来驱动滑动或座阀的已知控制机构相反，设定点的旋转运动和实际值被直接相互比较。这导致静态（定位精度，同心度）以及动态（序列真实性，路径偏差）的相当大的精度。控制机构是更好的过载安全装置，结构更简单，更经济。

44. 发明授权

US4352299A Intermittent motion gear apparatus 失效
标题翻译：间歇运动齿轮装置
公开(公告)号：US4352299A
公开(公告)日：1982-10-05
申请号：US142205
申请日：1980-04-21
申请人： Robert R. Riggs , Paulmer D. Hunt
发明人： Robert R. Riggs , Paulmer D. Hunt
IPC分类号： F15B9/12 , F15B9/14 , F16H27/04
CPC分类号： F15B9/14 , F15B9/12 , Y10T74/18528 , Y10T74/19874
摘要： An intermittent motion gear apparatus for positioning a control valve to an open position in response to a predetermined input. An input greater than the predetermined input has no effect on the valve's position but sets a mechanical servo for a desired output corresponding to an operational position of a motor. When the operational position of the motor is reached, a feedback signal acts on the intermittent motion to move the control valve to a null or closed position.
摘要翻译：一种用于响应于预定输入将控制阀定位到打开位置的间歇运动齿轮装置。大于预定输入的输入对阀的位置没有影响，但是对应于电动机的操作位置的期望输出设置机械伺服。当达到电动机的操作位置时，反馈信号作用于间歇运动，以将控制阀移动到零或关闭位置。

45. 发明授权

US4249453A Fluidic motor actuator 失效
标题翻译：流体电动机执行器
公开(公告)号：US4249453A
公开(公告)日：1981-02-10
申请号：US952029
申请日：1978-10-16
申请人： Robert R. Riggs , Paulmer D. Hunt
发明人： Robert R. Riggs , Paulmer D. Hunt
IPC分类号： F16H27/00 , F15B9/12 , F15B9/14 , F16H35/00 , F01C21/12
CPC分类号： F15B9/12 , F15B9/14
摘要： A control system for a motor through which a specific rotary output is obtained from a given input signal by controlling an operational supply of fluidic energy. The control system includes a direct mechanical servo which receives the input signal to control a rotary plate directional valve through which the operational supply of fluid is communicated to the motor. The direct mechanical servo includes a compound epicyclic gear train and an intermittent motion gear mechanism which compares the input position with the output position of the motor to establish a feedback signal which repositions the rotary valve plate directional valve to a null position when the rotary output equals that requested by the input signal. The control system further includes a regulator assembly which receives a variable reference signal to control the fluid pressure of the supply fluid. The variable reference signal which represents the work performed by the motor also passes through a relief valve. When the output torque of the motor reaches a predetermined value, the relief valve opens and a portion of the fluid supplied to the motor is vented to an exhaust conduit to protect any mechanism operated by the motor from receiving excessive torque.
摘要翻译：一种用于电动机的控制系统，通过该控制系统通过控制流体动力的供应来从给定的输入信号获得特定的旋转输出。控制系统包括直接机械伺服，其接收输入信号以控制旋转板方向阀，通过该旋转板方向阀将流体的操作供应通过该马达。直接机械伺服包括复合行星齿轮系和间歇运动齿轮机构，其将输入位置与电动机的输出位置进行比较，以建立反馈信号，当旋转输出等于由输入信号请求。控制系统还包括调节器组件，其接收可变参考信号以控制供应流体的流体压力。表示由电动机执行的功能的可变参考信号也通过安全阀。当电动机的输出转矩达到预定值时，安全阀打开，供给电动机的流体的一部分排放到排气管道，以保护由电动机操作的任何机构不会受到过大的转矩。

46. 发明授权

US4194365A Hydraulic motor control 失效
标题翻译：液压马达控制
公开(公告)号：US4194365A
公开(公告)日：1980-03-25
申请号：US914065
申请日：1978-06-08
申请人： Rene G. Stoufflet , Victor Yeou
发明人： Rene G. Stoufflet , Victor Yeou
IPC分类号： F15B11/08 , E02F9/12 , E02F9/20 , G05D3/20 , F15B9/08 , F15B9/14
CPC分类号： F16H61/4052 , E02F9/123 , E02F9/128 , E02F9/2033 , G05D3/20 , Y10S60/911
摘要： A control system for stopping a hydraulic motor in a predetermined position comprises a valve connected in parallel across the motor, the valve having a closed position and an open position in which flow is via a throttle orifice. When the motor is being driven normally the valve is closed. When the main control regulator for the motor is moved to stop the motor, the valve is automatically opened to allow limited fluid flow through the motor during a slowing down phase. A detector senses when the motor is a predetermined distance from its desired stopping position, and moves the valve to its closed position. Overload valves are provided to prevent overpressures.
摘要翻译：用于将液压马达停止在预定位置的控制系统包括并联连接在马达上的阀，该阀具有关闭位置和通过节流孔流动的打开位置。当电机正常驱动时，阀门关闭。当电动机的主控制调节器移动以停止电动机时，阀被自动打开，以允许在减速阶段期间有限的流体流过电动机。检测器检测电机何时距离其期望的停止位置预定的距离，并且将阀移动到其关闭位置。提供过载阀以防止过压。

47. 发明授权

US4161905A Hydraulic servomechanism 失效
标题翻译：液压伺服机构
公开(公告)号：US4161905A
公开(公告)日：1979-07-24
申请号：US803516
申请日：1977-06-06
申请人： Hiroshi Ota
发明人： Hiroshi Ota
IPC分类号： F15B9/08 , F15B9/12 , F15B9/14 , F15B9/03 , F15B9/09 , F15B13/16
CPC分类号： F15B9/12
摘要： Disclosed is a hydraulic servomechanism wherein the motion of a driven element is synchronized with the motion of a command element by detecting any phase difference between the movement of the driven element and that of the command element, controlling the flow rate of a hydraulic fluid being fed to the driven element with a directional and flow control valve in proportion to the detected amount of phase difference and also controlling the flow rate of the hydraulic fluid being fed to the hydraulic servomechanism with a pressure compensation valve in proportion to the variation in the load exerted on the driven element.
摘要翻译：公开了一种液压伺服机构，其中通过检测从动元件的运动和指令元件的运动之间的任何相位差，驱动元件的运动与指令元件的运动同步，控制被供给的液压流体的流量通过与检测到的相位差成比例的方向和流量控制阀将被驱动元件调节到与所施加的负载变化成比例的压力补偿阀的液压流体供给到液压伺服机构的流量在驱动元件上。

48. 发明授权

US4087969A Hydraulic speed change gear having an automatic pressure control device 失效
标题翻译：具有自动压力控制装置的液压变速齿轮
公开(公告)号：US4087969A
公开(公告)日：1978-05-09
申请号：US775322
申请日：1977-03-07
申请人： Noriyuki Takahashi , Masao Nishikawa
发明人： Noriyuki Takahashi , Masao Nishikawa
IPC分类号： B62D11/18 , F16H39/02 , F16H61/40 , F16H61/4008 , F16H61/4035 , F16H61/4052 , F16H61/4139 , F15B9/14 , F15B11/16
CPC分类号： F16H61/4078 , B62D11/18 , F16H39/02 , F16H61/4026 , F16H61/4139 , F16H61/421 , F16H61/46
摘要： A hydraulic speed change gear designed to automatically control its hydraulic circuit pressure to be held at all times at a substantially constant level irrespective of the loading condition so as to enable the pressure oil in the hydraulic circuit to be used as a pressure source for other various hydraulic equipment. To this end, the gear includes a fixed displacement hydraulic pump adapted to be driven by an input shaft, a variable displacement hydraulic motor having an output shaft, a closed hydraulic circuit connecting between said pump and said motor, a hydraulic supply pump drivably coupled to said input shaft, a supply passage connected with a discharge port of said supply pump and with said closed hydraulic circuit through check valves, and an oil pressure control device connected with said closed hydraulic circuit and said supply passage for reducing the oil pressure in said supply passage in proportion to a pressure rise in said closed hydraulic circuit.
摘要翻译：一种液压变速齿轮，被设计成自动控制其液压回路压力，始终保持在基本上恒定的水平，无论装载状况如何，以使液压回路中的压力油能够用作其它各种压力源液压设备。为此，齿轮包括适于由输入轴驱动的固定排量液压泵，具有输出轴的可变排量液压马达，连接在所述泵和所述马达之间的闭合液压回路，可驱动地连接到所述输入轴，与所述供给泵的排出口连接的供给通道和通过止回阀的所述闭合液压回路;以及与所述闭合液压回路和所述供给通路连接的油压控制装置，用于降低所述供给的油压与所述封闭液压回路中的压力升高成比例地流动。

49. 发明授权

US3783742A Remote rotary control 失效
标题翻译：远程旋转控制
公开(公告)号：US3783742A
公开(公告)日：1974-01-08
申请号：US3783742D
申请日：1972-07-27
申请人： KOBELT J
发明人： KOBELT J
IPC分类号： F15B9/14 , F15B11/18
CPC分类号： F15B9/14
摘要： This disclosure pertains to that class of remote rotary controls wherein an actuated rotary element situate remote from a control rotary element duplicates or reproduces the rotary action of the control element. More particularly, my present invention provides for a remote rotary following action which is infinitely variable and infinitely continuous in either direction of rotation. A rotary control head and a rotary actuator are rotatably mounted on a common base means. A cam integral to the control head sequentially actuates a plurality of pressure varying control valves as the head is rotated. Each of the control valves is duct connected to one of a plurality of linear actuators mounted on the base means. Each of the linear actuators is interconnected to an extensible and retractable fluid controlled actuator link; each actuator link is interconnected to the rotary actuator. Each linear actuator is duct connected for fluid flow through a shuttle-valve to the actuator link of an adjacent linear actuator whereby the fluid pressure in each actuator link is substantially inversely proportional to the fluid pressure in its interconnected linear actuator. Sequential actuation of the plurality of control valves by rotation of the control head causes sequential operation of each linear actuator whereby the rotary actuator reproduces the rotation of the control head.
摘要翻译：本公开涉及一类远程旋转控制，其中远离控制旋转元件的致动旋转元件复制或再现控制元件的旋转动作。更具体地，本发明提供了一种远程旋转跟随动作，其在任意的旋转方向上是无限可变的和无限连续的。旋转控制头和旋转致动器可旋转地安装在公共基座装置上。当头部旋转时，与控制头一体的凸轮依次致动多个压力变化控制阀。每个控制阀是连接到安装在基座装置上的多个线性致动器之一的管道。每个线性致动器互连到可伸缩的流体控制致动器连杆; 每个致动器连杆互连到旋转致动器。每个线性致动器是连接的管道，用于流体通过梭阀流动到相邻线性致动器的致动器连杆，由此每个致动器连杆中的流体压力与其互连的线性致动器中的流体压力基本成反比。通过控制头的旋转对多个控制阀的顺序致动导致每个线性致动器的顺序操作，由此旋转致动器再现控制头的旋转。

50. 发明授权

US3752001A Electro-hydraulic pulse motor 失效
标题翻译：电动液压马达
公开(公告)号：US3752001A
公开(公告)日：1973-08-14
申请号：US3752001D
申请日：1971-12-13
申请人： FUJITSU LTD
发明人： INABA S , ITO K , SHIMIZU K , AMEMIYA Y
IPC分类号： F15B9/14 , F16H55/18 , F16H57/12
CPC分类号： F16H57/12 , F15B9/14 , F16H2057/0224 , Y10T74/19623
摘要： This disclosure relates to an improved electro-hydraulic pulse motor wherein an eccentric ring is provided for a joint of the electric pulse motor part and four way pilot valve part so that adjustment of the backlash in the reduction gear between the electric pulse motor part and the four way pilot valve part can be properly carried out from outside, and therefore the electrohydraulic pulse motor can be adjusted so as to have excellent performances without the interior thereof being contaminated with dust and other foreign material.

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