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1. 发明授权

US11572901B2 Redundant electrohydraulic positioning control system 有权
公开(公告)号：US11572901B2
公开(公告)日：2023-02-07
申请号：US17202094
申请日：2021-03-15
申请人： Woodward, Inc.
发明人： Jonathan Paul Workman , Gregory A. Molenaar , Marek Kazimierz Redzina , Krzysztof Sutkowski
IPC分类号： F15B13/043 , F15B9/03 , F15B13/16 , F15B19/00 , F15B21/044 , F15B13/044 , F15B13/04 , F15B21/08
摘要： The subject matter of this specification can be embodied in, among other things, an electrohydraulic positioning control system that includes a shuttle valve configured to direct fluid flow between a selectable one of a first fluid port and a second fluid port, and a fluid outlet configured to be fluidically connected to a fluid actuator, a first servo valve controllable to selectably permit and block flow between the first fluid port, a fluid source, and a fluid drain, a second servo valve controllable to selectably permit and block flow between the second fluid port, the fluid source, and the fluid drain, a first servo controller configured to provide a first health signal and control the first servo valve based on a second health signal, and a second servo controller configured to provide the second health signal and control the second servo valve based on the first health signal.

2. 发明申请

US20220163056A1 HYDRAULIC SYSTEM 有权
公开(公告)号：US20220163056A1
公开(公告)日：2022-05-26
申请号：US17535319
申请日：2021-11-24
申请人： GRUNDFOS HOLDING A/S
发明人： Karsten DYRBYE , Kim Hulegaard JENSEN , Henrik KRAGH
IPC分类号： F15B21/02 , F15B13/16
摘要： A hydraulic system includes at least one hydraulic unit (2) having at least one flow path (14, 16, 18), an hydraulic actuator (22), provided for influencing a hydraulic flow through the flow path (14, 16, 18), at least one sensor device (24, 26), and a control device (10) for controlling the hydraulic actuator (22). The at least one sensor device (24, 26) includes a storage device (32) provided for containing information specifying the hydraulic unit (2). The control device (10) is configured to receive the information stored in the storage device (32) of the sensor device (24, 26) and to set up a control of the hydraulic actuator (22) based on the received information specifying the hydraulic unit (2). A method is provided for controlling the hydraulic actuator.

3. 发明申请

US20210246915A1 Electro-Hydraulic Servovalve Control with Input 有权
公开(公告)号：US20210246915A1
公开(公告)日：2021-08-12
申请号：US16784864
申请日：2020-02-07
申请人： Woodward, Inc.
发明人： Bryan R. Haack , Sharwari Kulkarni
IPC分类号： F15B13/08 , F15B13/044 , F15B13/16
摘要： The subject matter of this specification can be embodied in, among other things, a controller apparatus that includes a digital controller configured to provide a digital position signal based on a setpoint and a differential analog feedback signal, and a converter circuit configured to provide a differential analog electrohydraulic servo valve position control signal based on the digital position signal, and provide the differential analog feedback signal based on the differential analog electrohydraulic servo valve position control signal.

4. 发明授权

US10113565B2 Engine nozzle synchronization system 有权
公开(公告)号：US10113565B2
公开(公告)日：2018-10-30
申请号：US15312123
申请日：2015-06-02
申请人： Moog Inc.
发明人： John Kopp
IPC分类号： F15B9/10 , F15B11/22 , F15B9/16 , F15B13/16
摘要： An actuator synchronization system comprising a control valve in fluid communication with a plurality of actuators; each of the actuators comprising an input member moveable by the control valve, a main valve moveable from a null to an off-null position, an output member moveable from a first to a second output position, and a feedback linkage and a drive link configured such that selective movement of the input member causes movement of the valve from the null to the off-null position and movement of the output member to the second output position causes movement of the valve member from the off-null to the null position; and a mechanical connector between each of the input members or drive links of the actuators configured such that rotational motion of each of the respective drive links is synchronized.

5. 发明授权

US09822804B2 Double nozzle type smart positioner 有权
公开(公告)号：US09822804B2
公开(公告)日：2017-11-21
申请号：US14994340
申请日：2016-01-13
申请人： YOUNG TECH CO., LTD.
发明人： Du Gi Min
IPC分类号： F15B5/00 , F15B13/16
CPC分类号： F15B13/16 , F15B5/003 , F15B2211/30575 , Y10T137/2278 , Y10T137/87209
摘要： Provided is a double nozzle type positioner, which includes a flapper (1), a first nozzle (2) and a second nozzle (3) disposed at both sides based on the flapper (1), a first orifice (4) configured to maintain a constant pressure of the first nozzle (2), a second orifice (5) configured to maintain a constant pressure of the second nozzle (3), a first pilot valve (6) having an input portion connected to a feed pressure, a second pilot valve (7) having an input portion connected to an output portion of the first pilot valve (6), a discharge hole (8) connected to an output portion of the second pilot valve (7), and an actuator (9) connected to the output portion of the first pilot valve (6) and the input portion of the second pilot valve (7). If the first nozzle (2) is opened due to the movement of the flapper (1), the second nozzle (3) is closed, and if the first nozzle (2) is closed, the second nozzle (3) is opened.

6. 发明授权

US08689673B2 Energy conversion devices and systems including the same 有权
标题翻译：能量转换装置和系统包括相同的
公开(公告)号：US08689673B2
公开(公告)日：2014-04-08
申请号：US12936719
申请日：2009-04-10
申请人： Andrew C. Berkun
发明人： Andrew C. Berkun
IPC分类号： F15B13/16
CPC分类号： F01L23/00 , F01B17/04 , F01B23/10 , F01L13/06 , F02B63/04 , F02B71/04 , F02B2075/1808 , F04B39/10 , F25B9/06
摘要： Methods and apparatus for converting energy from a stream of compressed gas into mechanical work as systems incorporating such methods and apparatus.
摘要翻译：将能量从压缩气体流转换成机械工作的方法和装置，作为包含这种方法和装置的系统。

7. 发明申请

US20140047824A1 ELECTROHYDRAULIC CONTROLLER FEEDBACK SYSTEM AND METHOD 有权
标题翻译：电液控制器反馈系统及方法
公开(公告)号：US20140047824A1
公开(公告)日：2014-02-20
申请号：US13587313
申请日：2012-08-16
申请人： James D. Matthews , Daniel J. Wallace
发明人： James D. Matthews , Daniel J. Wallace
IPC分类号： F15B13/16
CPC分类号： F15B13/14 , F15B2211/6346 , G05G5/03
摘要： An electrohydraulic controller feedback system and method including an electrohydraulic operator controller and a feedback mechanism is disclosed. An operator controls a machine hydraulic function using the electrohydraulic operator controller, the feedback system senses a property of the hydraulic function, and generates tactile feedback in the electrohydraulic operator controller based on the sensed property. The electrohydraulic operator controller can be, for example, a joystick or control lever. The tactile feedback can be vibrations that vary based on the sensed property. The vibration can vary according to a profile relating the vibration amount to the sensed property. The profile can include portions of various shapes, for example, linear, exponential or parabolic, and can include breakpoints. The profile can include high sensitivity regions where small changes in the sensed property result in large vibration changes.
摘要翻译：公开了一种电液控制器反馈系统和方法，包括电动液压操纵器控制器和反馈机构。操作人员使用电动液压操纵器控制机器的液压功能，反馈系统检测液压功能的特性，并根据检测到的属性在电液操作控制器中产生触觉反馈。电动液压操作器控制器可以是例如操纵杆或控制杆。触觉反馈可以是基于检测到的属性而变化的振动。振动可以根据与感测到的属性相关的振动量的轮廓而变化。轮廓可以包括各种形状的部分，例如线性，指数或抛物线形，并且可以包括断点。轮廓可以包括敏感区域，其中检测到的属性的小变化导致大的振动变化。

8. 发明申请

US20120317965A1 AUTOMATED HYDRAULIC POWER SYSTEM AND A METHOD OF OPERATING AN AUTOMATED HYDRAULIC POWER SYSTEM 审中-公开
标题翻译：自动液压动力系统及其自动化液压动力系统的运行方法
公开(公告)号：US20120317965A1
公开(公告)日：2012-12-20
申请号：US13578683
申请日：2010-02-17
申请人： Francis Edward Pagnotta, JR.
发明人： Francis Edward Pagnotta, JR.
IPC分类号： F16H61/38 , F15B21/08 , F15B13/16
CPC分类号： F04C15/0061 , F04C2/10 , F04C14/06 , F04C2270/701
摘要： The present a hydraulic system and a method for operating a hydraulic system that includes an engine, at least one hydraulic pump, a pump box interposed between the engine and the at least one hydraulic pump, at least one hydraulic clutch pack interposed between the pump box and the at least one hydraulic pump, at least one valve, a hydraulic fluid reservoir, a clutch actuation pump, and one or more electronics. The at least one hydraulic clutch pack selectively transmits torque to the at least one hydraulic pump. The at least one valve may be opened to supply pressurized hydraulic fluid to the at least one clutch pack and may be closed to interrupt a supply of pressurized hydraulic fluid to the at least one clutch pack in order to selectively engage or disengage the clutch pack.
摘要翻译：本发明提供了一种液压系统和操作液压系统的方法，所述液压系统包括发动机，至少一个液压泵，介于所述发动机和所述至少一个液压泵之间的泵箱，至少一个液压离合器组件，介于所述泵箱和至少一个液压泵，至少一个阀，液压流体储存器，离合器致动泵以及一个或多个电子器件。至少一个液压离合器组件选择性地将扭矩传递到至少一个液压泵。所述至少一个阀可以被打开以将加压的液压流体供应到所述至少一个离合器组件并且可以被关闭以中断向所述至少一个离合器组件供应加压液压流体，以便选择性地接合或脱离所述离合器组件。

9. 发明授权

US08302525B2 Hydraulic stepless transmission 有权
标题翻译：液压无级变速器
公开(公告)号：US08302525B2
公开(公告)日：2012-11-06
申请号：US12304232
申请日：2006-11-21
申请人： Shingo Eguchi , Takeshi Ouchida , Shuji Shiozaki
发明人： Shingo Eguchi , Takeshi Ouchida , Shuji Shiozaki
IPC分类号： F04B1/20 , F15B13/16
CPC分类号： F16H39/14
摘要： A hydraulic stepless transmission having increased layout freedom and a compact structure with the functions of conventional hydraulic stepless transmission retained and having increased easiness of production. In the hydraulic stepless transmission, the movable swash plate (input side swash plate) of a variable displacement plunger hydraulic pump or motor is tilted by a hydraulic servo mechanism. The hydraulic servo mechanism has a power piston connected to one end of the input side swash plate for tilting the swash plate, a servo spool (13) placed normal to the direction of sliding of the power piston and substantially parallel to the input side swash plate, and a feedback link for connecting the servo spool and the input side swash plate.
摘要翻译：具有增加的布置自由度的液压无级变速器和具有常规液压无级变速器功能的紧凑结构，并且具有增加的生产容易性。在液压无级变速器中，可变排量柱塞液压泵或电动机的可动斜盘（输入侧斜盘）由液压伺服机构倾斜。液压伺服机构具有连接到输入侧斜盘的一端的动力活塞，用于使斜盘倾斜;伺服滑阀（13），其垂直于动力活塞的滑动方向放置并基本上平行于输入侧斜盘以及用于连接伺服卷轴和输入侧旋转斜盘的反馈链路。

10. 发明申请

US20120090309A1 Swing Control Apparatus and Swing Control Method for Construction Machinery 有权
标题翻译：工程机械摆动控制装置及摆动控制方法
公开(公告)号：US20120090309A1
公开(公告)日：2012-04-19
申请号：US13375892
申请日：2010-06-01
申请人： Ki Yong Kim
发明人： Ki Yong Kim
IPC分类号： F15B13/16 , F15B15/20
CPC分类号： E02F9/123 , E02F9/128 , E02F9/2025 , E02F9/2207 , E02F9/2235 , E02F9/226 , E02F9/2285 , E02F9/2296 , E02F9/26
摘要： Disclosed is a swing control apparatus of construction machinery, including: a hydraulic pump discharging working oil for driving a swing motor and controlling a discharge flux according to an input pump command value Vpump; a pressure sensor sensing pressure of the working oil discharged from the hydraulic pump; and a control unit calculating the pump command value Vpump based on a swing operation quantity Vsw input from the swing operation unit to output the calculated pump command value to the hydraulic pump, wherein when the input swing operation quantity Vsw is larger than a preset reference swing operation quantity Vswo and the discharge pressure Ppump of the hydraulic pump detected by the pressure sensor is lower than a first reference pressure Pswr1, the control unit calculates a converted swing operation quantity Vsw′ gradually increasing from the reference swing operation quantity Vswo to the input swing operation quantity Vsw and calculates the pump command value Vpump of the hydraulic pump corresponding to the converted swing operation quantity Vsw′.
摘要翻译：公开了一种施工机械的摆动控制装置，包括：液压泵，排出用于驱动回转马达的工作油，并根据输入泵指令值Vpump控制排出通量; 感测从液压泵排出的工作油的压力的压力传感器; 以及控制单元，基于从所述回转操作单元输入的回转操作量Vsw来计算所述泵指令值Vpump，以将计算出的泵指令值输出到所述液压泵，其中，当所述输入摆动操作量Vsw大于预设的参考摆幅操作量Vswo和由压力传感器检测到的液压泵的排出压力Ppump低于第一基准压力Pswr1，控制单元计算从基准摆动操作量Vswo逐渐增加到转换摆动操作量Vsw' 运算量Vsw，并计算与转换后的摆动运转量Vsw'对应的液压泵的泵指令值Vpump。

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