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公开(公告)号：US3848411A
公开(公告)日：1974-11-19
申请号：US32685473
申请日：1973-01-26
申请人： JOHNSON SERVICE CO
发明人： STRAWN C
CPC分类号： G05B11/60 , F15B9/03 , F15B15/18 , Y10S60/911
摘要： A control circuit for a hydraulic actuator includes a signal comparator circuit responsive to DC command and feedback signals to provide a control signal proportional to the difference between the command and sense signals, a first switching circuit responsive to the control signal to energize a pump of the actuator which pumps hydraulic fluid into an expandable chamber via an inlet port to thereby drive an actuator rod from a retracted position to an extended position against the force of a restoring spring, a second switching circuit responsive to the control signal to close a dump valve, sealing an outlet port of the expandable chamber to maintain the hydraulic fluid in the expandable chamber, and a feedback circuit having actuator rod position sensing apparatus for producing an AC sense signal indicative of the position of the actuator rod and a circuit for deriving a DC feedback signal from the AC sense signal for the signal comparator circuit; the first switching circuit being disabled to energize the pump when the feedback signal indicates the actuator rod has moved to the desired position, and the second switching circuit being disabled to permit the dump valve to open in response to a decrease in the command signal, permitting the actuator rod to retract under the force of the restoring spring.
摘要翻译： 用于液压致动器的控制电路包括响应于直流指令和反馈信号的信号比较器电路，以提供与指令和感测信号之间的差成比例的控制信号;第一开关电路，响应于控制信号使泵 致动器，其将液压流体经由入口端口泵送到可膨胀室中，从而克服所述回复弹簧的力将致动器杆从缩回位置驱动到延伸位置，响应于所述控制信号关闭排放阀的第二开关电路， 密封可膨胀室的出口以将液压流体保持在可膨胀室中，以及具有致动器棒位置检测装置的反馈电路，用于产生表示致动器杆的位置的AC感测信号和用于导出DC反馈的电路 来自信号比较电路的交流感测信号的信号; 当反馈信号指示致动器杆已经移动到所需位置时，第一开关电路被禁用以激励泵，并且第二开关电路被禁用以允许排放阀响应于指令信号的减小而打开，允许 致动器杆在复原弹簧的作用下收回。
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公开(公告)号：US3784330A
公开(公告)日：1974-01-08
申请号：US3784330D
申请日：1972-04-17
申请人： BOSCH GMBH ROBERT
发明人： EHEIM F , SCHWARTZ R
IPC分类号： F02C9/26 , F02C7/00 , F02C7/22 , F02C9/00 , F02M20060101 , F02M45/00 , F04B49/08 , F16K7/17 , G05B11/60
摘要： In a fuel injection apparatus of the type that is associated with a gas turbine-type vehicle power plant, there is provided a differential pressure valve which is disposed in the fuel path and which ensures a constant pressure drop across a fuel metering valve regardless of the fuel quantities metered thereby. In order to reduce the back pressure effect of the fuel on the operation of the differential pressure valve, the stationary flat valve seat of the latter has, instead of one, a plurality of fuel flow openings, so that the pressure cross section for any given opening cross section is reduced with respect to known differential pressure valves.
摘要翻译： 在与燃气轮机型车辆动力装置相关联的燃料喷射装置中，设置有差压阀，其设置在燃料路径中，并且确保在燃料计量阀上恒定的压降，而不管 因此计量的燃料量。 为了减少燃料对压差阀操作的背压效应，后者的固定式平阀座具有多个燃料流动开口，以使得任何给定的压力横截面 相对于已知的差压阀，开口截面减小。
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公开(公告)号：US1982053A
公开(公告)日：1934-11-27
申请号：US63839832
申请日：1932-10-18
申请人： KENT LTD G
CPC分类号： G05B11/60 , G05D23/1906 , G05D23/22
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公开(公告)号：US07415376B1
公开(公告)日：2008-08-19
申请号：US11443330
申请日：2006-05-30
申请人： Lyndon J. Hurley
发明人： Lyndon J. Hurley
CPC分类号： F16K31/46 , F16K37/0083 , F16K37/0091
摘要： A valve tester system is disclosed that comprises a valve tester assembly for rotating a valve stem of a valve. The valve tester assembly may include a support, a rotation element mounted on the support for rotating a valve during a rotation event, a control element for controlling aspects of the rotation event of the valve by the rotation element, and an element for detecting a location of the valve tester assembly during the rotation event of the valve. In some embodiments of the invention, the element for detecting the location of the valve tester assembly includes a Global Positioning Satellite (GPS) receiver. In some embodiments, the GPS receiver is integral with the control element.
摘要翻译： 公开了一种阀测试器系统，其包括用于旋转阀的阀杆的阀测试器组件。 阀测试器组件可以包括支撑件，安装在支撑件上用于在旋转事件期间旋转阀的旋转元件，用于通过旋转元件控制阀的旋转事件的方面的控制元件，以及用于检测位置的元件 在阀的旋转事件期间的阀门测试器组件。 在本发明的一些实施例中，用于检测阀测试器组件的位置的元件包括全球定位卫星（GPS）接收器。 在一些实施例中，GPS接收器与控制元件成一体。
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5.发明授权
公开(公告)号：US4958705A
公开(公告)日：1990-09-25
申请号：US264213
申请日：1988-10-28
申请人： Edward Horvath
发明人： Edward Horvath
CPC分类号： A61F2/68 , F16F9/44 , G05B11/60 , A61F2002/745 , A61F2002/748
摘要： A hydraulic controller for the motion of a prosthetic joint has a piston--cylinder unit whose working chambers on opposite sides of the piston are connected to each other by a connecting passage and to a compensating chamber which stores a volume of hydraulic fluid to compensate for the difference in the volumes of the cylinder chambers resulting from the fact that the piston rod passes through one of them. Regardless of the direction of movement of the piston in the cylinder, utilizing checkvalves and adjustable throttle elements, the flow is controlled between the chambers so that separate throttle elements can effectively control the opposite movements while check valves permit filling of chambers.
摘要翻译： 用于假肢关节运动的液压控制器具有活塞和缸体单元，其活塞的相对侧上的工作室通过连接通道彼此连接，并且连接到补偿室，该补偿室存储一定量的液压流体以补偿 因为活塞杆通过其中一个的事实导致的气缸室的体积差异。 不管活塞在气缸中的运动方向如何，利用止回阀和可调节的节流元件，在腔室之间控制流动，使得单独的节流元件可有效地控制相反的运动，同时止回阀允许腔室的填充。
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公开(公告)号：US4303370A
公开(公告)日：1981-12-01
申请号：US34603
申请日：1979-04-30
申请人： Takao Kuwabara , Hisaya Uchiyama , Hiroshi Okumura
发明人： Takao Kuwabara , Hisaya Uchiyama , Hiroshi Okumura
CPC分类号： F03B15/06 , Y02E10/226
摘要： A control apparatus comprises a primary control unit composed of wicket gates of a hydraulic turbine and a secondary control unit composed of a bypass valve which is operated to open or close in cooperation with the opening or closing of the wicket gates. First and second link mechanisms are provided between the wicket gates and a hydraulic pressure distributor valve which is operatively connected to the bypass valve to control opening or closing of the latter. The first link mechanism detects the opening or closing motion of the wicket gates and transmits the corresponding signal to the hydraulic pressure distributor valve for the bypass valve, while the second link mechanism detect position of a pressure distributor valve plunger for the wicket gates and transmits the corresponding signal to the distributor valve for the bypass valve. A reset cylinder contains a piston which is connected to the second link mechanism and is operated by a solenoid valve to reset the last-mentioned signal when the wicket gates are held stationary in the fully closed position.
摘要翻译： 控制装置包括由液压涡轮机的小门构成的主控制单元和由旁通阀构成的二次控制单元，该旁通阀与门口的打开或关闭协同操作以打开或关闭。 第一和第二连杆机构设置在门口门和液压分配阀之间，液压分配器阀可操作地连接到旁通阀以控制后者的打开或关闭。 第一连杆机构检测小门的打开或关闭运动，并将相应的信号传递给用于旁通阀的液压分配阀，而第二连杆机构检测用于门口门的压力分配阀柱塞的位置， 相应的信号到旁路阀的分配阀。 复位气缸包括活塞，该活塞连接到第二连杆机构，并且当小门被保持在完全关闭位置时由电磁阀操作以复位最后提到的信号。
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公开(公告)号：US3788773A
公开(公告)日：1974-01-29
申请号：US3788773D
申请日：1972-08-18
申请人： BOSCH GMBH ROBERT
发明人： VAN DER KOLK H
CPC分类号： F04B49/002
摘要： A hydraulic control and regulating apparatus for an adjustable pump driven by a prime mover, preferably a combustion motor, in which an auxiliary pump delivers fluid through a throttle producing at a predetermined speed of the auxiliary pump corresponding to the speed of the motor, a pressure differential operating a control valve to supply to, and discharge from, hydraulic setting motors which operate a manual lever controlling the position of the volume regulator of the adjustable pump. The flow of fluid to the hydraulic setting motor is controlled by a manually operated lever shifting two reversing valves for connecting the speed control valve with the delivery conduit of the auxiliary pump and with an open low pressure space.
摘要翻译： 一种用于由原动机驱动的可调节泵的液压控制和调节装置，优选地是燃烧电动机，其中辅助泵通过相应于电动机速度的辅助泵的预定速度产生的节气门输送流体，压力 差速器操作控制阀，用于向操作控制可调节泵的体积调节器的位置的手动杆的液压设定马达提供和从其排出。 流体到液压设定马达的流动通过手动操作的杠杆来控制，该手动操作杆移动两个换向阀，用于将速度控制阀与辅助泵的输送管连接并且具有开放的低压空间。
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公开(公告)号：US3734246A
公开(公告)日：1973-05-22
申请号：US3734246D
申请日：1971-06-23
申请人： BENDIX CORP
发明人： MONTJOURIDES P
CPC分类号： F16D65/74
摘要： This invention relates to a hydraulic brake automatic adjuster adapted to provide the proper clearance in released portion between rotatable and nonrotatable braking surfaces, and particularly to keep to a substantially predetermined value the volume of braking liquid necessary to operate at least one brake actuator whatever the wear of the friction element connected thereto.
摘要翻译： 本发明涉及一种液压制动自动调节器，其适于在可旋转和不旋转的制动表面之间的释放部分中提供适当的间隙，并且特别地，保持操作至少一个制动器致动器所需的制动液体的体积的基本上预定的值， 的摩擦元件。
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公开(公告)号：US09836067B2
公开(公告)日：2017-12-05
申请号：US14783502
申请日：2014-02-26
发明人： Hans-Joachim Felkl
CPC分类号： G05D7/0635 , G05B7/02 , G05B11/42 , G05B15/02
摘要： The invention relates to a hydraulic actuator (1) that can be controlled by a main valve (2) and an auxiliary valve (3). Upstream of the main valve device (2) is a main regulator (7), having a P block (9) and an I block (10). Upstream of the auxiliary valve (3) is an auxiliary regulator (8), having a base block (11) and an I block (12). In a normal mode of operation, the auxiliary valve (3) is deactivated. The main regulator is provided with a main setpoint variable (p*) and a corresponding main actual quantity (p) of the hydraulic actuator (1). The main regulator (7) determines a main actuating variable (s) and predefines the main actuating variable (s) in the main valve device (2). In a special mode of operation, the base block (11) of the auxiliary regulator (8) is provided with an auxiliary setpoint variable (a*) and a corresponding auxiliary actual quantity (p) of the hydraulic actuator (1). The base block (11) of the auxiliary regulator (8) determines an auxiliary actuating variable (s′) and predefines the auxiliary actuating variable (s′) in the auxiliary valve device (3). The I block (12) of the auxiliary regulator (8) is provided with the main setpoint variable (p*) and the main actual quantity (p). The I block (12) of the auxiliary regulator (8) determines an integral component (si′) therefrom. The integral component (si′) is applied to the auxiliary actuating variable (s′). In the special mode of operation, the P block (9) is provided with the main setpoint variable (p*) and the main actual quantity (p). In the special mode of operation, the P-block (9) determines the main actuating variable (s) and predefines the main actuating variable (s) in the main valve device (2).
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