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    Independent metering valve with flow limiter
    3.
    发明授权
    Independent metering valve with flow limiter 失效
    带流量限制器的独立计量阀

    公开(公告)号：US08752371B2

    公开(公告)日：2014-06-17

    申请号：US12971149

    申请日：2010-12-17

    Applicant: John Ferraz ,  Aleksandar M. Egelja ,  Pengfei Ma ,  Matthew J. Beschorner

    Inventor： John Ferraz ,  Aleksandar M. Egelja ,  Pengfei Ma ,  Matthew J. Beschorner

    IPC: F16D31/02 ,  F15B13/042

    CPC classification number: F15B11/05 ,  F15B2211/20523 ,  F15B2211/30575 ,  F15B2211/40561 ,  F15B2211/5059 ,  F15B2211/7053 ,  Y10T137/0379 ,  Y10T137/7761

    Abstract: An independent metering valve (IMV) assembly is disclosed that includes a metering stem including an inlet. The IMV assembly also includes a hydro-mechanical control valve in communication with a fluid source and the inlet. The control valve also including a spool with a closed end and an open end. The control valve includes a biasing member that biases the control valve or spool towards an open position thereby establishing communication between the fluid source and the inlet. The control valve also including a load signal line providing communication between an outlet of the control valve upstream of the inlet and the closed end of the spool. Wherein high pressure in the load signal line allowing the control valve to move towards a closed position thereby overcoming bias of the biasing member and reducing flow to the inlet during a high pressure condition.

    Abstract translation: 公开了一种独立计量阀（IMV）组件，其包括包括入口的计量阀杆。 IMV组件还包括与流体源和入口连通的水力机械控制阀。 控制阀还包括具有封闭端和开口端的线轴。 控制阀包括偏压构件，该偏置构件将控制阀或阀芯朝向打开位置偏置，从而建立流体源和入口之间的连通。 控制阀还包括负载信号线，其提供在入口上游的控制阀的出口与阀芯的封闭端之间的连通。 其中负载信号线中的高压允许控制阀朝着关闭位置移动，由此克服偏置构件的偏压并且在高压条件期间减少到入口的流量。

    ENERGY RECOVERY SYSTEM HAVING ACCUMULATOR AND VARIABLE RELIEF
    5.
    发明申请
    ENERGY RECOVERY SYSTEM HAVING ACCUMULATOR AND VARIABLE RELIEF 有权
    具有蓄能器和可变救援的能源回收系统

    公开(公告)号：US20130000290A1

    公开(公告)日：2013-01-03

    申请号：US13171146

    申请日：2011-06-28

    Applicant: Jiao ZHANG ,  Dayao Chen ,  Pengfei Ma ,  Tonglin Shang ,  Lawrence J. Tognetti ,  Jeffrey L. Kuehn

    Inventor： Jiao ZHANG ,  Dayao Chen ,  Pengfei Ma ,  Tonglin Shang ,  Lawrence J. Tognetti ,  Jeffrey L. Kuehn

    IPC: F16D31/02

    CPC classification number: E02F9/123 ,  E02F9/2217 ,  E02F9/2296 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/30575 ,  F15B2211/50527 ,  F15B2211/7058 ,  F15B2211/88

    Abstract: A swing energy recovery system for a machine is disclosed. The swing energy recovery system may have a pump configured to pressurize fluid, a motor driven by a flow of pressurized fluid from the pump, and an energy recovery arrangement configured to receive pressurized fluid discharged from the motor and selectively supply pressurized fluid to the motor. The swing energy recovery system may also have a pressure relief valve associated with the motor, and a controller in communication with the energy recovery arrangement and the pressure relief valve. The controller may be configured to selectively adjust a setting of the pressure relief valve based on an operating condition of the energy recovery arrangement.

    Abstract translation: 公开了一种用于机器的摆动能量回收系统。 回转能量回收系统可以具有构造成对流体加压的泵，由来自泵的加压流体流驱动的马达，以及配置成接收从马达排出的加压流体并选择性地将加压流体供应到马达的能量回收装置。 回转能量回收系统还可以具有与电动机相关联的减压阀，以及与能量回收装置和减压阀连通的控制器。 控制器可以被配置为基于能量回收装置的操作条件来选择性地调节压力释放阀的设定。

    HOIST POSITIONING SYSTEM AND METHOD
    7.
    发明申请
    HOIST POSITIONING SYSTEM AND METHOD 有权
    HOIST定位系统和方法

    公开(公告)号：US20110048861A1

    公开(公告)日：2011-03-03

    申请号：US12553091

    申请日：2009-09-02

    Applicant: PENGFEI MA ,  SHIHAN ZHANG

    Inventor： PENGFEI MA ,  SHIHAN ZHANG

    IPC: B66B1/28 ,  G01P21/00 ,  B66B1/36

    CPC classification number: B66B9/187 ,  B66B1/3492 ,  B66C13/16

    Abstract: A hoist positioning system includes an accelerometer attached to a hoist, a control unit for processing signals from the accelerometer and comparing the processed signals with reference data to determine a position of the hoist, a drive system for moving the hoist up and down, and a relay that is switched ON and OFF by a control signal from the control unit. When the relay is switched ON, power is supplied to the drive system from a high-voltage power source and the hoist is driven up or down. When the relay is switched OFF, power from the high-voltage power source to the drive system is cut off and the hoist stops moving up or down.

    Abstract translation: 一种起重机定位系统，包括附接到起重机的加速度计，用于处理来自加速度计的信号并将处理后的信号与参考数据进行比较的控制单元，以确定起重机的位置，用于上下移动升降机的驱动系统，以及 通过来自控制单元的控制信号接通和断开的继电器。 当继电器接通时，从高压电源向驱动系统供电，升降机向上或向下驱动。 当继电器关闭时，高压电源到驱动系统的电源被切断，起重机停止上下移动。

    HYDRAULIC SYSTEM HAVING AN EXTERNAL PRESSURE COMPENSATOR
    8.
    发明申请
    HYDRAULIC SYSTEM HAVING AN EXTERNAL PRESSURE COMPENSATOR 有权
    具有外压补偿器的液压系统

    公开(公告)号：US20100107623A1

    公开(公告)日：2010-05-06

    申请号：US12605465

    申请日：2009-10-26

    Applicant: Philippe Vande Kerckhove ,  James A. Aardema ,  Pengfei Ma ,  Kalpesh Patel

    Inventor： Philippe Vande Kerckhove ,  James A. Aardema ,  Pengfei Ma ,  Kalpesh Patel

    IPC: F15B13/042

    CPC classification number: F15B11/05 ,  E02F9/2207 ,  F15B11/006 ,  F15B2211/20546 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/3144 ,  F15B2211/40561 ,  F15B2211/50518 ,  F15B2211/6051 ,  F15B2211/6054 ,  F15B2211/65 ,  F15B2211/7053

    Abstract: A hydraulic system for a machine is disclosed. The hydraulic system has a source of pressurized fluid and a fluid actuator with a first chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber. The first valve further includes a first element movable between a flow passing, at which fluid from the source flows to the first chamber, and a flow blocking position, at which fluid from the source is blocked from the first chamber and a second element configured to selectively drain a control passageway associated with the first element to cause the first element to move. The hydraulic system further has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first valve dependent upon the pressure of the control passageway.

    Abstract translation: 公开了一种用于机器的液压系统。 液压系统具有加压流体源和具有第一室的流体致动器。 液压系统还具有构造成选择性地将源与第一室流体连通的第一阀。 第一阀还包括第一元件，第一元件可以在通过流体之间移动，流体从源流出到第一室，流动阻挡位置在该流动阻挡位置处，来自源的流体被阻挡在第一室中，第二元件被配置为 选择性地排出与第一元件相关联的控制通道以使第一元件移动。 液压系统还具有比例压力补偿阀，该比例压力补偿阀被配置为根据控制通道的压力来控制引导在源和第一阀之间的流体的压力。

    Rotary-actuated electro-hydraulic valve
    9.
    发明申请
    Rotary-actuated electro-hydraulic valve 失效
    旋转电动液压阀

    公开(公告)号：US20080149181A1

    公开(公告)日：2008-06-26

    申请号：US11643818

    申请日：2006-12-22

    Applicant: Philippe Georges Vande Kerckhove ,  Pengfei Ma

    Inventor： Philippe Georges Vande Kerckhove ,  Pengfei Ma

    IPC: F16K31/124 ,  F16K31/12 ,  F16K31/04

    CPC classification number: F15B13/0402 ,  F15B13/0435 ,  Y10T137/0352 ,  Y10T137/86019 ,  Y10T137/86582 ,  Y10T137/86606 ,  Y10T137/86614

    Abstract: A valve for controlling fluid flow in a fluid system is disclosed. The valve includes a housing, a servo spool, and a piston. The servo spool defines a spiral groove and a spiral land. The piston defines an orifice configured to provide flow communication to a supply of pressurized fluid and an orifice configured to provide flow communication to a portion of the fluid system exterior to the valve. The valve further includes a main spool operably coupled to the piston. The main spool is configured to control flow of fluid in the fluid system. The spiral groove and spiral land are configured such that angular displacement of the servo spool results in a force imbalance on the piston, thereby moving the piston and the main spool in one of a first direction and a second direction.

    Abstract translation: 公开了一种用于控制流体系统中的流体流动的阀。 阀包括壳体，伺服卷轴和活塞。 伺服卷轴限定螺旋槽和螺旋槽。 活塞限定了一个孔口，其构造成提供与加压流体供应的流动连通，以及构造成提供与该阀外部流体系统的一部分的流动连通的孔口。 阀还包括可操作地联接到活塞的主阀芯。 主阀芯被配置为控制流体系统中的流体流动。 螺旋槽和螺旋槽脊构造成使得伺服阀芯的角位移导致活塞上的力不平衡，从而使活塞和主阀芯在第一方向和第二方向中的一个方向上移动。

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