利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

146 条记录 (耗时 0.027 秒)

    Pilot pressure control system
    3.
    发明授权
    Pilot pressure control system 有权

    公开(公告)号：US09903098B2

    公开(公告)日：2018-02-27

    申请号：US14771393

    申请日：2013-03-06

    申请人： VOLVO CONSTRUCTION EQUIPMENT AB

    发明人： Bo Vigholm

    IPC分类号： F15B13/043 ,  E02F9/22 ,  F15B20/00 ,  B62D5/09 ,  F15B21/08 ,  E02F9/08

    CPC分类号： E02F9/225 ,  B62D5/091 ,  E02F9/0841 ,  E02F9/226 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2296 ,  F15B13/0433 ,  F15B20/008 ,  F15B21/087 ,  F15B2211/20546 ,  F15B2211/355 ,  F15B2211/6355 ,  F15B2211/67 ,  F15B2211/7128 ,  F15B2211/8636 ,  F15B2211/8752

    摘要： A pilot pressure control system for controlling a pilot signal pressure at a pilot inlet of a control valve includes a pilot outlet adapted to be connected to the pilot inlet. The pilot pressure control assembly further includes a first pilot valve assembly and a second pilot valve assembly. Each one of the first and second pilot valve assemblies are individually controllable so as to selectively provide a first fluid flow direction from a pressure line to the pilot outlet and a second fluid flow direction from the pilot outlet to a drain line. At least the first pilot valve assembly is adapted to assume a maximum pressure supply condition so as to supply a first pilot valve assembly maximum pressure to the pilot outlet. At least the second pilot valve assembly is adapted to provide a pressure drop from the pilot outlet to the drain line via the second pilot valve assembly. The pilot pressure control system is configured such that, when the pilot pressure control system is connected to the pressure and drain lines and when the first pilot valve assembly is controlled so as to assume the maximum pressure supply condition and the second pilot valve assembly provides a fluid flow in the second fluid direction with a minimum pressure drop, the pressure at the pilot outlet is equal to or above 20 of the first pilot valve assembly maximum pressure (Pmax).

    ELECTROPNEUMATIC WINDSHIELD WIPER DRIVE FOR A RAIL VEHICLE, DRIVE FOR A WINDSHIELD WIPER AND PNEUMATIC SYSTEM FOR OPERATING A DRIVE FOR A WINDSHIELD WIPER
    5.
    发明申请
    ELECTROPNEUMATIC WINDSHIELD WIPER DRIVE FOR A RAIL VEHICLE, DRIVE FOR A WINDSHIELD WIPER AND PNEUMATIC SYSTEM FOR OPERATING A DRIVE FOR A WINDSHIELD WIPER 审中-公开
    用于铁路车辆的电动WINISHIELD刮水器驱动装置，用于风车刮水器的驱动装置和用于操作驱动器的气动系统

    公开(公告)号：US20160288771A1

    公开(公告)日：2016-10-06

    申请号：US14442569

    申请日：2013-11-15

    申请人： KNORR-BREMSE SYSTEME FÜR SCHIENENFAHRZEUGE GMBH

    发明人： Gerhardus DE VRIES ,  Gerd NOLL ,  Wolfgang MAGLOT

    IPC分类号： B60S1/10

    CPC分类号： B60S1/10 ,  F15B15/065 ,  F15B20/008 ,  F15B2211/30565 ,  F15B2211/6336 ,  F15B2211/665 ,  F15B2211/7725 ,  F15B2211/8636 ,  F15B2211/8757 ,  F15B2211/8855

    摘要： A pneumatic system for operating a drive for a windshield wiper for a rail vehicle, wherein the windshield wiper drive has a piston guide device that has a first connection and a second connection opposite the first connection. At least one piston in the piston guide device carries out linear movements in opposite directions along the main direction of extension of the piston guide device to bring about an alternating rotational movement of the wiper shaft. The pneumatic system has a supply connection for a compressed air supply, wherein the supply connection is connected to the first connection via a first normal operation connection line and a first emergency operation connection line arranged parallel thereto and to the second connection via a second normal operation connection line and a second emergency operation connection line arranged parallel thereto.

    摘要翻译： 一种用于操作用于轨道车辆的挡风玻璃刮水器的驱动器的气动系统，其中所述挡风玻璃刮水器驱动器具有活塞引导装置，所述活塞引导装置具有与所述第一连接相对的第一连接和第二连接。 活塞引导装置中的至少一个活塞沿着活塞引导装置的主要延伸方向沿相反方向进行线性运动，以产生刮水器轴的交替的旋转运动。 气动系统具有用于压缩空气供应的供应连接，其中供应连接经由第一正常操作连接线和与其平行设置的第一紧急操作连接线和经由第二正常操作连接到第二连接而连接到第一连接 连接线和与其平行布置的第二紧急操作连接线。

    Flow rate control device
    7.
    发明授权
    Flow rate control device 有权
    流量控制装置

    公开(公告)号：US09372485B2

    公开(公告)日：2016-06-21

    申请号：US14353416

    申请日：2012-10-24

    申请人： SMC KABUSHIKI KAISHA

    发明人： Kenichi Matsumura

    IPC分类号： F15B13/043 ,  G05D7/03 ,  F15B11/068 ,  F16K1/52 ,  F16K17/30

    CPC分类号： G05D7/03 ,  F15B11/068 ,  F15B2211/40515 ,  F15B2211/851 ,  F15B2211/853 ,  F15B2211/8636 ,  F15B2211/8757 ,  F15B2211/8855 ,  F16K1/52 ,  F16K17/30 ,  Y10T137/86614

    摘要： A flow rate control device, including: a body including first and second ports for supplying and discharging pressurized fluid; a set of first and second solenoid valves connected to an upper part of the body and selecting a state of flow of the pressurized fluid; and an opening/closing valve for increasing a flow rate of the pressurized fluid which flows as the result of selection by the first and second solenoid valves. The pressurized fluid is caused to flow from the first port to the second port at a predetermined flow rate while the opening/closing valve is closed, and then the flow rate of the pressurized fluid flowing from the first port to the second port is increased by opening the opening/closing valve.

    摘要翻译： 一种流量控制装置，包括：主体，包括用于供应和排出加压流体的第一和第二端口; 一组第一和第二电磁阀，连接到主体的上部并选择加压流体的流动状态; 以及用于增加作为第一和第二电磁阀的选择结果而流动的加压流体的流量的开/关阀。 在打开/关闭阀关闭的同时，加压流体以预定流量从第一端口流动到第二端口，然后从第一端口流向第二端口的加压流体的流量增加 打开/关闭阀门。

    METHOD TO DETECT HYDRAULIC VALVE FAILURE IN HYDRAULIC SYSTEM
    8.
    发明申请
    METHOD TO DETECT HYDRAULIC VALVE FAILURE IN HYDRAULIC SYSTEM 有权
    检测液压系统液压阀故障的方法

    公开(公告)号：US20160084271A1

    公开(公告)日：2016-03-24

    申请号：US14785520

    申请日：2014-04-21

    申请人： PARKER-HANNIFIN CORPORATION

    发明人： Ralf Gomm ,  Christian Josefsson

    IPC分类号： F15B11/00 ,  F15B20/00

    CPC分类号： F15B11/003 ,  F15B20/008 ,  F15B2211/20515 ,  F15B2211/20561 ,  F15B2211/27 ,  F15B2211/30515 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/633 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/8636

    摘要： According to one aspect of the invention, a hydraulic system includes a controller connected to an operator interface, a pump operable in a first direction for supplying pressurized fluid, and a load-holding valve connected between the pump and a port for connection to an actuator. The load-holding valve may be controlled by the controller and operative in a first position to allow flow to the actuator to operate the actuator against a load and operative in a second position to block load-induced return flow from the actuator to the pump. The controller may be configured to receive a requested actuator stop, to control the first valve to move to the second position in response to the requested actuator stop, to monitor a first system condition in response to the requested actuator stop, to evaluate the monitored system condition with a prescribed criteria, and to determine whether or not to initiate a back-up control routine based on the evaluation.

    摘要翻译： 根据本发明的一个方面，液压系统包括连接到操作者界面的控制器，可在第一方向上操作以供应加压流体的泵和连接在泵与用于连接到致动器的端口之间的负载保持阀 。 负载保持阀可以由控制器控制并且在第一位置中操作以允许流动到致动器以使操作器抵抗负载并且在第二位置操作以阻止来自致动器到泵的负载引起的返回流。 控制器可以被配置为接收所请求的致动器止动件，以响应于所请求的致动器停止来控制第一阀移动到第二位置，以响应于所请求的致动器停止来监视第一系统状况，以评估所监视的系统 条件，并且基于评估来确定是否启动备份控制例程。

    SLEWING-TYPE WORKING MACHINE
    9.
    发明申请
    SLEWING-TYPE WORKING MACHINE 有权
    休闲型工作机

    公开(公告)号：US20150184362A1

    公开(公告)日：2015-07-02

    申请号：US14406651

    申请日：2013-05-21

    申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.

    发明人： Masayuki Komiyama

    IPC分类号： E02F9/12 ,  E02F9/22

    CPC分类号： E02F9/123 ,  E02F9/128 ,  E02F9/2095 ,  E02F9/2267 ,  E02F9/267 ,  F15B20/008 ,  F15B2211/3058 ,  F15B2211/6313 ,  F15B2211/665 ,  F15B2211/7058 ,  F15B2211/761 ,  F15B2211/8636

    摘要： Provided is a working machine including an upper slewing body, a hydraulic motor, a slewing electric motor, a hydraulic pump, a slewing operation device, a control valve, a communication valve having an open position for bringing a motor outlet-side line into direct communication with a tank or a motor inlet-side line, bypassing the control valve, and a close position for blocking the communication, and a control device which performs (i) determining, as a target value, a pressure generated in the hydraulic motor without the communication valve, or a torque obtained from the pressure, based on an operation state and a slewing state, (ii) determining, as an actual value, a pressure actually generated in the hydraulic motor or a torque obtained from the pressure, and (iii) outputting a torque command based on a value obtained by subtracting the actual value from the target value.

    摘要翻译： 本发明提供一种加工机械，其具有上部回转体，液压马达，回转电动机，液压泵，回转运转装置，控制阀，具有使电动机出口侧线直接进入的开放位置的连通阀 与油箱或马达入口侧管路的通信，旁路控制阀和用于阻断通信的关闭位置;以及控制装置，其执行（i）确定在液压马达中产生的压力作为目标值而没有 连通阀或基于操作状态和回转状态从压力获得的扭矩，（ii）确定在液压马达中实际产生的压力或从压力获得的扭矩作为实际值，和（ iii）基于通过从目标值减去实际值而获得的值来输出转矩指令。

    FAULT ISOLATION & DECONTAMINATION PROCEDURES FOR ELECTROHYDRAULIC VALVES
    10.
    发明申请
    FAULT ISOLATION & DECONTAMINATION PROCEDURES FOR ELECTROHYDRAULIC VALVES 审中-公开
    电动阀的故障分离和去除程序

    公开(公告)号：US20140174550A1

    公开(公告)日：2014-06-26

    申请号：US14138386

    申请日：2013-12-23

    申请人： Eaton Corporation

    发明人： Michael Berne Rannow ,  Vishal Vijay Mahulkar

    IPC分类号： G05D16/20 ,  G05D7/06

    CPC分类号： G05D16/20 ,  F15B19/005 ,  F15B2211/8636 ,  G05D7/0617 ,  Y10T137/0379

    摘要： A method for isolating a fault or blocked work port in an electro-hydraulic system is disclosed. In one step, a system pump is set to a first predetermined pressure and a valve assembly is commanded to a center position. In another step, the center position of the valve is recorded. In one step, the valve assembly is opened to place a work port associated with the valve in fluid communication with the pump, after which a first end position of the valve, a first work port pressure, and a first pump supply pressure are recorded. In another step, the valve assembly is opened to place the work port to a tank reservoir, after which a second end position of the valve and a fluid pressure associated with the work port are recorded. The recorded and measured data can then be analyzed to identify the fault condition or blocked work port.

    摘要翻译： 公开了一种用于隔离电液系统中的故障或阻塞工作端口的方法。 在一个步骤中，将系统泵设置为第一预定压力，并将阀组件命令到中心位置。 在另一步骤中，记录阀的中心位置。 在一个步骤中，阀组件打开以将与阀相关联的工作口与泵流体连通，之后记录阀的第一端部位置，第一工作端口压力和第一泵供应压力。 在另一步骤中，打开阀组件以将工作口放置在储罐中，此后记录阀的第二端位置和与工作端口相关联的流体压力。 然后可以分析记录和测量的数据，以识别故障状况或阻塞的工作端口。