公开(公告)号：US20190186512A1

公开(公告)日：2019-06-20

申请号：US16218950

申请日：2018-12-13

申请人： AIRBUS OPERATIONS LIMITED

发明人： Arnaud DIDEY

IPC分类号： F15B21/042 ,  B64C13/36

CPC分类号： F15B21/042 ,  B64C13/36 ,  B64D41/00 ,  F15B1/26 ,  F15B21/0427 ,  F15B2211/526 ,  F15B2211/6343 ,  F15B2211/66 ,  F15B2211/857

摘要： An apparatus for controlling one or more characteristics of a hydraulic system of an aircraft. The apparatus includes a heat providing element arranged to provide heat to the contents of a reservoir of the hydraulic system, and a processor arranged to control the operation of the heat providing element. A method of controlling heat provision to a hydraulic system of an aircraft and a system for controlling one or more characteristics of a hydraulic system of an aircraft.

公开(公告)号：US20180161845A1

公开(公告)日：2018-06-14

申请号：US15473984

申请日：2017-03-30

申请人： REFCO Manufacturing Ltd.

发明人： Manfred ULRICH ,  Ulrich DEMUTH

IPC分类号： B21D41/02 ,  F15B11/10 ,  F15B13/02 ,  F15B15/02 ,  F15B15/14

CPC分类号： B21D41/026 ,  B21D39/203 ,  B21D41/028 ,  B25B27/10 ,  F15B11/10 ,  F15B13/025 ,  F15B15/02 ,  F15B15/14 ,  F15B2211/20507 ,  F15B2211/50509 ,  F15B2211/523 ,  F15B2211/7052 ,  F15B2211/857

摘要： A hydraulic tool including a tank, which is filled with oil, a hand pump connected to the tank in fluid communication, having a spring-loaded lever mechanism, which is in operative connection with a pump piston, with a piston cylinder system as actuator, which is connected to the pump in fluid communication with a non-return valve, wherein the piston surface of the actuator is a multiple of the piston surface of the hand pump.

公开(公告)号：US20180113446A1

公开(公告)日：2018-04-26

申请号：US15454800

申请日：2017-03-09

申请人： FISHER CONTROLS INTERNATIONAL LLC

发明人： Shawn W. Anderson

IPC分类号： G05B23/02 ,  G05D7/06

CPC分类号： G05B23/0208 ,  F15B19/005 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/855 ,  F15B2211/857 ,  F16K31/12 ,  F16K37/0083 ,  G05B19/0425 ,  G05B23/0235 ,  G05B23/0283 ,  G05B2219/24077 ,  G05B2219/33326 ,  G05B2219/33331 ,  G05B2219/45006 ,  G05D7/0635 ,  G05D16/20

摘要： An integrated diagnostics system utilizes online and offline diagnostics techniques to evaluate control valves found in process plant environments. The integrated diagnostics system improves on existing diagnostic systems, which typically rely exclusively on online diagnostics or offline diagnostics.

公开(公告)号：US20170328383A1

公开(公告)日：2017-11-16

申请号：US15526894

申请日：2015-06-09

申请人： Festo AG & Co. KG

发明人： Bodo Neef

IPC分类号： F15B13/04 ,  F15B13/08 ,  F15B21/04 ,  F15B13/043 ,  F15B13/00

CPC分类号： F15B13/0405 ,  F15B13/0431 ,  F15B13/0857 ,  F15B13/0875 ,  F15B13/0889 ,  F15B21/044 ,  F15B2013/006 ,  F15B2211/30565 ,  F15B2211/6306 ,  F15B2211/857 ,  F15B2211/8623 ,  F15B2211/87 ,  F15B2211/8752 ,  F15B2211/8855

摘要： A valve arrangement for a fluidic supply of a fluid load, with several main valves designed for influencing fluid flows at the fluid ports, and with electrically controllable pilot valves designed for fluidic control of the main valves. A base body is assigned a connection plate lying opposite a connection face and having a fluid passage which leads into an operating port for the connection of a fluid load wherein, between the connection face and the connection plate there is provided a separate passage body which has at least one connection passage for a fluidically communicating link between at least one of the fluid ports and the operating port, and at least one connecting conduit for a fluidic coupling of at least two fluid ports.

公开(公告)号：US20170321394A1

公开(公告)日：2017-11-09

申请号：US15528760

申请日：2014-12-10

申请人： VOLVO CONSTRUCTION EQUIPMENT AB

发明人： Hung-Ju SHIN ,  Sang-Hee LEE

IPC分类号： E02F9/22 ,  F15B13/042 ,  F15B11/05 ,  E02F9/20

CPC分类号： E02F9/2235 ,  E02F9/2004 ,  E02F9/2267 ,  E02F9/2271 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/0423 ,  F15B11/055 ,  F15B13/042 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/523 ,  F15B2211/575 ,  F15B2211/633 ,  F15B2211/6346 ,  F15B2211/6652 ,  F15B2211/6654 ,  F15B2211/851 ,  F15B2211/857

摘要： A method is provided for compensating for the flow rate of a variable capacity-type hydraulic pump such that, when a manipulation lever is manipulated, a discontinuous section, which has no change in the discharge flow rate of the hydraulic pump, is eliminated.

公开(公告)号：US09652902B2

公开(公告)日：2017-05-16

申请号：US14522105

申请日：2014-10-23

申请人： GOODRICH CORPORATION

发明人： Amir M. Fazeli ,  Adnan Cepic ,  Susanne M. Reber

IPC分类号： G07C5/08 ,  B64D45/00 ,  B64C25/60 ,  F15B1/24 ,  F15B19/00 ,  F15B20/00

CPC分类号： G07C5/0808 ,  B64C25/60 ,  B64D45/00 ,  B64D2045/0085 ,  F15B1/24 ,  F15B19/005 ,  F15B20/005 ,  F15B2201/50 ,  F15B2201/51 ,  F15B2201/515 ,  F15B2211/625 ,  F15B2211/7054 ,  F15B2211/857

摘要： A method includes detecting at least one position measurement of a separator piston of a pitch trim actuator. The method includes detecting at least one pressure measurement of a gas. The method includes detecting at least one temperature measurement of the gas. The method includes storing at least one position value based on the at least one position measurement of the separator piston, at least one pressure value based on the at least one pressure measurement of the gas and at least one temperature value based on the at least one temperature measurement of the gas. The method includes determining a volume of an oil within an oil chamber of the pitch trim actuator and a pressure of the gas within the gas chamber of the pitch trim actuator, based on the at least one position value, the at least one pressure value and the at least one temperature value.

公开(公告)号：US09644649B2

公开(公告)日：2017-05-09

申请号：US14213305

申请日：2014-03-14

申请人： Caterpillar Global Mining LLC

发明人： John Ferraz, Jr. ,  Brandon Z. Barnes

IPC分类号： F16D31/02 ,  F15B21/04 ,  E02F3/42 ,  E02F9/22

CPC分类号： F15B21/047 ,  E02F3/425 ,  E02F9/2239 ,  E02F9/226 ,  E02F9/2285 ,  E02F9/2292 ,  F15B2211/20576 ,  F15B2211/30565 ,  F15B2211/30575 ,  F15B2211/3058 ,  F15B2211/6313 ,  F15B2211/6346 ,  F15B2211/7053 ,  F15B2211/857 ,  F15B2211/8609

摘要： A void protection system includes a valve assembly, a second fluid source configured to provide hydraulic fluid to the hydraulic cylinder, an auxiliary valve configured to fluidly connect the hydraulic cylinder to the second fluid source, a sensor assembly, and a controller. The controller is configured to monitor fluid pressure within the hydraulic cylinder based on signals from the sensor assembly, based on a determination that pressure in a rod end or a head end of the hydraulic cylinder is below a first fluid pressure threshold, configure the valve assembly to fluidly connect the corresponding end to the first fluid source, and if the first fluid source is not operational, increase an opening of the auxiliary valve to fluidly connect the corresponding end to the second fluid source and cause the second fluid source to provide fluid until pressure in the corresponding end is above a second fluid pressure threshold.

公开(公告)号：US20160138624A1

公开(公告)日：2016-05-19

申请号：US14541973

申请日：2014-11-14

申请人： Caterpillar Inc.

发明人： James Oftelie

IPC分类号： F15B21/04 ,  B60P1/16 ,  F15B19/00 ,  F15B11/10 ,  F15B20/00

CPC分类号： F15B21/044 ,  B60P1/162 ,  F15B19/005 ,  F15B2211/20553 ,  F15B2211/611 ,  F15B2211/615 ,  F15B2211/62 ,  F15B2211/6306 ,  F15B2211/655 ,  F15B2211/857 ,  F15B2211/87 ,  F15B2211/8752 ,  F15B2211/8755

摘要： A hydraulic power system for a mobile machine is provided. The system includes a load configured to be driven by pressurized hydraulic fluid and a hydraulic pump operatively connected for supply pressurized hydraulic fluid to the load. An engine is operatively connected and configured to drive the hydraulic pump. An aeration sensing system includes a sonic sensor system having a plurality of bands arranged on an outer surface of a line carrying pressurized hydraulic fluid and a pressure sensor for sensing a pressure of the hydraulic fluid in the line. A controller is in communication with the sonic sensor system and the pressure sensor and configured to calculate a level of aeration in the hydraulic fluid in the line during mobile machine operation using speed of sound data from the sonic sensor system and pressure data from the pressure sensor.

摘要翻译： 提供了一种用于移动机器的液压动力系统。 该系统包括被配置为由加压液压流体驱动的负载和可操作地连接以用于向加载器供应加压液压流体的液压泵。 发动机可操作地连接并构造成驱动液压泵。 曝气感测系统包括声波传感器系统，其具有布置在承载加压液压流体的管线的外表面上的多个带和用于感测该管路中的液压流体的压力的压力传感器。 控制器与声音传感器系统和压力传感器通信，并被配置为在移动机器操作期间使用来自声音传感器系统的声音数据的速度和来自压力传感器的压力数据来计算线路中的液压流体中的曝气量 。

公开(公告)号：US20140266711A1

公开(公告)日：2014-09-18

申请号：US14216078

申请日：2014-03-17

申请人： Ingersoll-Rand Company

发明人： Chun Jian Tang

IPC分类号： G08B1/08

CPC分类号： G08B1/08 ,  F15B19/005 ,  F15B20/005 ,  F15B2211/6306 ,  F15B2211/6343 ,  F15B2211/857 ,  F15B2211/8636 ,  F15B2211/87 ,  F15B2211/8855 ,  F17D5/02

摘要： An exemplary apparatus includes a sensor array configured to sense a gas stream temperature, pressure, and humidity. The sensor array includes a plurality of sensors, each configured to sense at least one of the gas stream conditions. The apparatus further includes an electronic control unit comprising a memory storage device, a condition evaluation module, a display module, and a wireless transmission module. The memory storage device stores a plurality of condition parameters, each condition parameter corresponding to one of the gas stream conditions. The condition evaluation module is configured to determine if one of the sensed conditions violates one of the corresponding parameters, and is further configured to output a warning command in response to the determining. The display module is configured to display information relating to at least one of a sensed condition and a condition parameter. The wireless transmission module is configured to wirelessly transmit data relating to at least one of the warning command and one of the sensed conditions.

摘要翻译： 示例性装置包括被配置为感测气流温度，压力和湿度的传感器阵列。 传感器阵列包括多个传感器，每个传感器被配置为感测气流条件中的至少一个。 该装置还包括电子控制单元，其包括存储器存储装置，条件评估模块，显示模块和无线传输模块。 存储器存储装置存储多个条件参数，每个条件参数对应于气流条件之一。 条件评估模块被配置为确定所感测的条件之一是否违反相应参数之一，并且还被配置为响应于该确定而输出警告命令。 显示模块被配置为显示与感测条件和条件参数中的至少一个有关的信息。 无线传输模块被配置为无线地发送与所述警告命令和感测到的条件中的至少一个有关的数据。

公开(公告)号：US20140099212A1

公开(公告)日：2014-04-10

申请号：US14045316

申请日：2013-10-03

申请人： Eaton Corporation

发明人： Philip James Dybing ,  Andrew Justin DeRung

IPC分类号： F04B49/00

CPC分类号： F15B20/005 ,  B60T11/323 ,  B66F9/22 ,  B66F17/003 ,  E02F9/226 ,  E02F9/2296 ,  E02F9/268 ,  F04B49/002 ,  F15B1/26 ,  F15B11/16 ,  F15B13/06 ,  F15B19/005 ,  F15B2211/20538 ,  F15B2211/20546 ,  F15B2211/41509 ,  F15B2211/41563 ,  F15B2211/426 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/634 ,  F15B2211/6346 ,  F15B2211/665 ,  F15B2211/857 ,  F15B2211/863 ,  F15B2211/8633 ,  F15B2211/8636 ,  F15B2211/864 ,  F15B2211/87 ,  F15B2211/8752 ,  G01M3/26

摘要： A method for detecting and isolation a leak in a hydraulic system having a supply pump serving at least one control valve is disclosed. In one embodiment, the control valve has multiple work sections. In step of the method, the hydraulic system is activated. In another step, an actuation command for at least one of the work sections is received, for example from a human-to-machine interface. Subsequently, the method may include generating a flow demand for the work sections for which an actuation command has been received. The method also includes the step of implementing at least one of a first, second, third, and fourth leak detection and isolation protocol to detect and isolate a leak between the pump and the control valve assembly, a leak between the reservoir and the control valve assembly and a leak between the at least one work circuit and the control valve assembly.

摘要翻译： 公开了一种用于检测和分离具有用于至少一个控制阀的供应泵的液压系统中的泄漏的方法。 在一个实施例中，控制阀具有多个工作部分。 在该方法的步骤中，液压系统被激活。 在另一步骤中，例如从人 - 机接口接收至少一个工作部分的致动命令。 随后，该方法可以包括为已经接收到致动命令的工作部分产生流量需求。 该方法还包括实现第一，第二，第三和第四泄漏检测和隔离协议中的至少一个的步骤，以检测和隔离泵和控制阀组件之间的泄漏，储存器和控制阀之间的泄漏 组装和至少一个工作回路和控制阀组件之间的泄漏。