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1. 发明申请

US20180128607A1 METHOD TO AUTOMATICALLY DETECT THE AREA RATIO OF AN ACTUATOR 审中-公开
公开(公告)号：US20180128607A1
公开(公告)日：2018-05-10
申请号：US15808311
申请日：2017-11-09
申请人： Eaton Corporation
发明人： Meng Wang , Michael Berne Rannow , Jason Kraft , Shelley Allison Nation
IPC分类号： G01B13/20 , G01F1/36
CPC分类号： F15B19/002 , F15B11/006 , F15B13/0417 , F15B19/00 , F15B19/005 , F15B19/007 , F15B21/087 , F15B2013/0409 , F15B2211/20546 , F15B2211/30575 , F15B2211/455 , F15B2211/46 , F15B2211/6313 , F15B2211/634 , F15B2211/6346 , F15B2211/6656 , F15B2211/7053 , F15B2211/7058 , F15B2211/761 , F15B2211/855 , F15B2211/857 , F15B2211/87 , G01F1/36 , G01F15/005
摘要： Systems and methods for estimating the area ratio of an actuator in static and dynamic states are disclosed. In one aspect, a metering valve is connected to each side of the actuator. In one example, one metering valve is held closed while the other metering valve incrementally pressurizes the actuator in discrete steps. The resulting work port pressures can be used to determine the actuator area ratio. Where counterbalance valves are installed in the system, the pressurizing metering valve can be placed in a pressure control mode to obtain the desired pressure values. In one example, the ratio of flows through each metering valve is used to determine the actuator ratio.

2. 发明申请

US20170051768A1 Compressed-Air System Having a Safety Function and Method for Operating Such a Compressed-Air System 审中-公开
标题翻译：具有安全功能的压缩空气系统和操作这种压缩空气系统的方法
公开(公告)号：US20170051768A1
公开(公告)日：2017-02-23
申请号：US15307271
申请日：2015-03-06
申请人： FESTO AG & Co. KG
发明人： Josef Sauer , Alexander Vargas , Manfred Jainczyk , Eckard Roos , Peter Beil
IPC分类号： F15B20/00 , F17C13/04 , F15B19/00
CPC分类号： F15B20/008 , F15B19/00 , F15B2211/3052 , F15B2211/3056 , F15B2211/30565 , F15B2211/6313 , F15B2211/634 , F15B2211/855 , F15B2211/8855 , F17C13/04 , F17C2250/0626
摘要： A compressed-air system having a safety function and a method for operating such a compressed-air system. The compressed-air system contains two working valves, which each can selectively assume an aerating position that aerates a load and a venting position that vents the load. Both working valves are redundantly connected on the output side to the load by means of a separating device. The separating device allows one or the other of the working valves to be separated, while the aeration of the load is maintained, in order to subject the one or the other working valve to an examination of the switching function of the one or the other working valve.
摘要翻译：具有安全功能的压缩空气系统和用于操作这种压缩空气系统的方法。压缩空气系统包含两个工作阀，每个工作阀可以选择性地承担通风负载的通风位置和排出负载的排气位置。两个工作阀通过分离装置在输出侧冗余连接到负载。分离装置允许一个或另一个工作阀被分离，同时保持负载通气，以便使一个或另一个工作阀检查一个或另一个工作的切换功能阀。

3. 发明申请

US20070204607A1 HYDRAULIC CIRCUIT OF CONSTRUCTION MACHINE 有权
标题翻译：建筑机械液压回路
公开(公告)号：US20070204607A1
公开(公告)日：2007-09-06
申请号：US11678795
申请日：2007-02-26
申请人： Hidekazu OKA
发明人： Hidekazu OKA
IPC分类号： F16D31/02
CPC分类号： F15B11/163 , E02F9/2228 , E02F9/2285 , E02F9/2296 , F15B19/002 , F15B21/08 , F15B2211/40515 , F15B2211/428 , F15B2211/45 , F15B2211/6303 , F15B2211/6309 , F15B2211/6654 , F15B2211/855
摘要： A hydraulic circuit for actuating an electromagnetic proportional pressure reducing valve by a command current outputted from a controller based on an operation amount of a remote control valve, and by a secondary pressure of the pressure reducing valve, actuating a common bleed-off valve which is a hydraulic pilot type spool valve is provided. In the controller, as a correction processing for correcting characteristics of a proportional valve command value which is a current value given to the pressure reducing valve and the opening area of the spool valve, at an inflection point at which the degree of change of a pump pressure increases, an actual proportional valve command value at a time of obtaining the pump pressure is compared to a theoretical proportional valve command value of a case of no tolerance, and a correction to compensate for a difference between the both command values is performed.
摘要翻译：一种用于通过基于遥控器的操作量从控制器输出的指令电流和通过减压阀的二次压力来致动电磁比例减压阀的液压回路，致动一个公共泄放阀，提供液压先导式滑阀。在控制器中，作为用于校正作为减压阀的当前值和滑阀的开口面积的比例阀指令值的特性的校正处理，在该转换点处，泵的变化程度压力增加时，将获得泵压力时的实际比例阀指令值与无公差的情况的理论比例阀指令值进行比较，并且执行补偿两个指令值之间的差的校正。

4. 发明授权

US06408676B1 Method and apparatus for determining the status of a relief valve 失效
标题翻译：用于确定安全阀状态的方法和装置
公开(公告)号：US06408676B1
公开(公告)日：2002-06-25
申请号：US09282381
申请日：1999-03-31
申请人： Kenneth L. Stratton , Steven R. Genseal , Steven R. Krause , Patrick M. Pecchio , Richard J. Skiba
发明人： Kenneth L. Stratton , Steven R. Genseal , Steven R. Krause , Patrick M. Pecchio , Richard J. Skiba
IPC分类号： G01M1900
CPC分类号： F15B11/165 , F15B19/002 , F15B2211/205 , F15B2211/3055 , F15B2211/3111 , F15B2211/3144 , F15B2211/329 , F15B2211/50536 , F15B2211/55 , F15B2211/6055 , F15B2211/6309 , F15B2211/6313 , F15B2211/6343 , F15B2211/71 , F15B2211/855 , F15B2211/87 , F16K37/0091
摘要： The present invention provides an apparatus and method for determining a status of a relief valve located within a fluid system having a pump and an actuator valve. The fluid system 102 is located on an earth moving machine, and the pump delivers fluid to the actuator 110, 112 through the actuator valve 108. The system 102 includes a pressure compensation assembly 130 adapted to control the fluid pressure of the system by bypassing fluid flow. The system 102 also includes a relief valve, and a pressure sensor. The method includes the steps of positioning the actuator valve in a closed position, deactivating the pressure compensation assembly, and sensing a relief pressure of the system.
摘要翻译：本发明提供一种用于确定位于具有泵和致动器阀的流体系统内的安全阀的状态的装置和方法。流体系统102位于移动机器上，并且泵通过致动器阀108将流体输送到致动器110,112。系统102包括压力补偿组件130，其适于通过旁路流体来控制系统的流体压力流。系统102还包括安全阀和压力传感器。该方法包括以下步骤：将致动器阀定位在关闭位置，停用压力补偿组件，以及感测系统的溢流压力。

5. 发明授权

US5479777A Torque and speed control methods and apparatus for pneumatic motors 失效
标题翻译：气动马达的扭矩和速度控制方法和装置
公开(公告)号：US5479777A
公开(公告)日：1996-01-02
申请号：US227856
申请日：1994-04-15
申请人： Thomas J. Mickel , Stewart W. Willason
发明人： Thomas J. Mickel , Stewart W. Willason
IPC分类号： F15B11/02 , F16D31/00 , F16D31/02
CPC分类号： F15B11/02 , F15B2211/212 , F15B2211/50518 , F15B2211/633 , F15B2211/855 , F15B2211/8613 , F15B2211/8616
摘要： Apparatus and methods to facilitate alteration of the torque and speed characteristics of a pneumatic motor to reduce start-up reaction torque and minimize run-on time after disconnection of the motor from a source of pressurized gas. A series connected accumulator and proportional gas flow/control/dump valve are inserted between a pressurized gas supply and a pneumatic motor, after which the accumulator volume is optimized by an iterative method to satisfactorily reduce transient motor start-up reaction torque while maintaining motor run-on time within an acceptable range.
摘要翻译：便于改变气动马达的扭矩和速度特性的装置和方法，以减少起动反作用转矩，并使马达与加压气体源断开后的运行时间最小化。将串联的蓄能器和比例气体流量/控制/排放阀插入加压气体供应和气动马达之间，然后通过迭代方法优化蓄能器容积，以令人满意地减少瞬时马达启动反应转矩，同时保持马达运行 - 时间在可接受的范围内。

6. 发明授权

US3312103A Hydraulic pressure control apparatus 失效
标题翻译：液压控制装置
公开(公告)号：US3312103A
公开(公告)日：1967-04-04
申请号：US44201065
申请日：1965-03-23
申请人： KIESERLING & ALBRECHT
发明人： ALFONS GOEKE
IPC分类号： F15B11/02 , G01M3/28 , G05D16/10 , G05D16/16 , G05D16/18
CPC分类号： G05D16/166 , F15B11/02 , F15B2211/20515 , F15B2211/20538 , F15B2211/30505 , F15B2211/40515 , F15B2211/411 , F15B2211/50518 , F15B2211/50554 , F15B2211/50563 , F15B2211/5151 , F15B2211/528 , F15B2211/55 , F15B2211/565 , F15B2211/57 , F15B2211/6355 , F15B2211/7052 , F15B2211/7053 , F15B2211/71 , F15B2211/855 , F15B2211/87 , G01M3/2846 , Y10T137/2617

7. 发明申请

US20190234514A1 HYDRAULIC SYSTEM FOR AN AUTOMATIC TRANSMISSION OF A MOTOR VEHICLE 审中-公开
公开(公告)号：US20190234514A1
公开(公告)日：2019-08-01
申请号：US16317846
申请日：2017-08-01
申请人： AUDI AG
发明人： Mathias WEINHARDT
IPC分类号： F16H61/12 , G07C5/08 , F15B19/00 , F16H61/00 , F15B1/033 , F15B11/20
CPC分类号： F16H61/12 , F15B1/033 , F15B11/20 , F15B19/005 , F15B2211/212 , F15B2211/71 , F15B2211/855 , F15B2211/857 , F15B2211/87 , F16H61/0021 , F16H61/688 , F16H2059/683 , F16H2061/0034 , F16H2061/1208 , F16H2061/1264 , G07C5/0808 , G07C5/085
摘要： A hydraulic system for an automatic transmission of a motor vehicle, with which hydraulic cylinders of at least one clutch and of gear selectors can be actuated, which hydraulic system has a pressure accumulator for providing an accumulator pressure in the hydraulic system, wherein a clutch valve that can be actuated by the control unit is arranged in a clutch path leading from the pressure accumulator to the clutch hydraulic cylinder.

8. 发明申请

US20190211851A1 METHOD AND SYSTEM FOR MONITORING HEALTH OF A HYDRAULIC FLUID SUBSYSTEM 审中-公开
公开(公告)号：US20190211851A1
公开(公告)日：2019-07-11
申请号：US16099154
申请日：2017-05-03
申请人： GENERAL ELECTRIC COMPANY
发明人： Ajay Kumar BEHERA , Bhasker Rao KEELY , Nicholas Josep ELLSON , Andrew CLARKE
IPC分类号： F15B19/00 , F16K37/00 , F15B11/10 , E21B47/00
CPC分类号： F15B19/005 , E21B33/0355 , E21B47/0001 , F15B11/10 , F15B20/005 , F15B2211/212 , F15B2211/6306 , F15B2211/6309 , F15B2211/6313 , F15B2211/6326 , F15B2211/6336 , F15B2211/634 , F15B2211/7052 , F15B2211/855 , F15B2211/857 , F15B2211/864 , F15B2211/87 , F16K37/0083 , F16K37/0091 , G05B23/0235
摘要： A method for monitoring health of a hydraulic fluid subsystem is presented. The method includes determining a plurality of forces acting on an actuator of the hydraulic fluid subsystem, determining a plurality of parameters based on at least one of an actuator inlet flow rate, an actuator outlet flow rate, and the plurality of forces acting on the actuator, receiving a valve inlet pressure of at least one of oil and gas flowing through a pipe while entering a valve operationally coupled to the actuator and a valve outlet pressure of the at least one of the oil and the gas flowing through the pipe while flowing out of the valve, and monitoring the health of the hydraulic fluid subsystem based on at least one of the plurality of parameters, the valve inlet pressure, and the valve outlet pressure.

9. 发明申请

US20180251959A1 WORK VEHICLE AND DATA CALIBRATION METHOD 审中-公开
公开(公告)号：US20180251959A1
公开(公告)日：2018-09-06
申请号：US15561546
申请日：2016-11-09
申请人： KOMATSU LTD.
发明人： Yuto FUJII , Takashi YOKOO
IPC分类号： E02F9/22 , E02F9/20 , E02F9/26 , F15B11/16 , F15B11/04
CPC分类号： E02F9/2228 , E02F3/32 , E02F3/3677 , E02F9/20 , E02F9/2004 , E02F9/2267 , E02F9/2271 , E02F9/2285 , E02F9/2292 , E02F9/2296 , E02F9/26 , F15B11/04 , F15B11/16 , F15B2211/6316 , F15B2211/6336 , F15B2211/6346 , F15B2211/7107 , F15B2211/75 , F15B2211/855
摘要： A work vehicle includes an operation apparatus for operating a work implement, a valve adjusting a flow rate of a hydraulic oil operating the work implement, an electromagnetic proportional control valve provided in a pilot oil path connecting a pilot oil pressure source and a pilot chamber of the valve to each other and generating a command pilot pressure with a source pressure input from the pilot oil pressure source being used as a primary pressure, and a main controller outputting a command current operating the electromagnetic proportional control valve in accordance with an operation of the operation apparatus. The main controller includes a data table storage unit storing data for predicting an operation speed of the work implement and a calibration unit calibrating data on the condition that an operation onto the operation apparatus is performed.

10. 发明申请

US20180171818A1 SYSTEMS AND METHODS FOR PROTECTING A TURBOMACHINE 审中-公开
公开(公告)号：US20180171818A1
公开(公告)日：2018-06-21
申请号：US15843814
申请日：2017-12-15
申请人： Dresser-Rand Company , REXA, Inc.
发明人： Shannon Nimchan , John Limmer , Pedro Lopez , Ken Enos
IPC分类号： F01D17/14 , F16K31/363
CPC分类号： F01D17/145 , F05D2220/31 , F05D2260/57 , F15B1/26 , F15B11/16 , F15B13/024 , F15B13/06 , F15B19/005 , F15B20/00 , F15B2211/20515 , F15B2211/20561 , F15B2211/30565 , F15B2211/6313 , F15B2211/6336 , F15B2211/634 , F15B2211/6656 , F15B2211/7051 , F15B2211/7052 , F15B2211/7054 , F15B2211/85 , F15B2211/855 , F15B2211/857 , F15B2211/8755 , F15B2211/8757 , F16K31/1221 , F16K31/363
摘要： Systems and methods for protecting a turbomachine may include a trip throttle valve having a throttle valve assembly and a trip valve assembly. The trip valve assembly may include a plurality of trip valves fluidly coupled to a hydraulic cylinder of the throttle valve assembly via a first flow path and a second flow path in parallel with one another. The trip valve assembly may also include a plurality of isolation valves fluidly coupled to the hydraulic cylinder via the first flow path and the second flow path. The plurality of isolation valves may be configured to selectively prevent fluid communication between the plurality of trip valves and the hydraulic cylinder to allow testing of one or more of the plurality of trip valves during operation of the turbomachine.

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