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    INDEPENDENT METERING VALVE WITH FLOW LIMITER
    1.
    发明申请
    INDEPENDENT METERING VALVE WITH FLOW LIMITER 审中-公开

    公开(公告)号：WO2012082354A3

    公开(公告)日：2012-06-21

    申请号：PCT/US2011/062357

    申请日：2011-11-29

    Applicant: CATERPILLAR INC. ,  FERRAZ, John ,  EGELJA, Aleksandar ,  MA, Pengfei ,  BESCHORNER, Matthew

    Inventor： FERRAZ, John ,  EGELJA, Aleksandar ,  MA, Pengfei ,  BESCHORNER, Matthew

    IPC: F15B13/02 ,  E02F9/22 ,  F16K31/12

    Abstract: An independent metering valve (24) (IMV) assembly is disclosed that includes a metering stem (21) including an inlet (29). The IMV assembly also includes a hydro-mechanical control valve (37) in communication with a fluid source and the inlet (29). The control valve (37) also including a spool (43) with a closed end (46) and an open end (42). The control valve (37) includes a biasing member (48) that biases the control valve (37) or spool (43) towards an open position thereby establishing communication between the fluid source and the inlet (29). The control valve (37) also including a load signal line (45) providing communication between an outlet (18) of the control valve (37) upstream of the inlet (29) and the closed end (46) of the spool (43). Wherein high pressure in the load signal line (45) allowing the control valve (37) to move towards a closed position thereby overcoming bias of the biasing member (48) and reducing flow to the inlet (29) during a high pressure condition.

    INDEPENDENT METERING VALVE WITH FLOW LIMITER
    3.
    发明申请
    INDEPENDENT METERING VALVE WITH FLOW LIMITER 审中-公开
    带限流器的独立计量阀

    公开(公告)号：WO2012082354A2

    公开(公告)日：2012-06-21

    申请号：PCT/US2011062357

    申请日：2011-11-29

    Applicant: CATERPILLAR INC ,  FERRAZ JOHN ,  EGELJA ALEKSANDAR ,  MA PENGFEI ,  BESCHORNER MATTHEW

    Inventor： FERRAZ JOHN ,  EGELJA ALEKSANDAR ,  MA PENGFEI ,  BESCHORNER MATTHEW

    IPC: F15B13/02 ,  E02F9/22 ,  F16K31/12

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

    Abstract: An independent metering valve (24) (IMV) assembly is disclosed that includes a metering stem (21) including an inlet (29). The IMV assembly also includes a hydro-mechanical control valve (37) in communication with a fluid source and the inlet (29). The control valve (37) also including a spool (43) with a closed end (46) and an open end (42). The control valve (37) includes a biasing member (48) that biases the control valve (37) or spool (43) towards an open position thereby establishing communication between the fluid source and the inlet (29). The control valve (37) also including a load signal line (45) providing communication between an outlet (18) of the control valve (37) upstream of the inlet (29) and the closed end (46) of the spool (43). Wherein high pressure in the load signal line (45) allowing the control valve (37) to move towards a closed position thereby overcoming bias of the biasing member (48) and reducing flow to the inlet (29) during a high pressure condition.

    Abstract translation: 公开了一种独立的计量阀（24）（IMV）组件，其包括具有入口（29）的计量杆（21）。 IMV组件还包括与流体源和入口（29）连通的液压机械控制阀（37）。 控制阀（37）还包括具有封闭端（46）和开口端（42）的阀芯（43）。 控制阀（37）包括偏压构件（48），该偏压构件将控制阀（37）或阀芯（43）偏压向打开位置，从而在流体源和入口（29）之间建立连通。 控制阀37还包括在入口29上游的控制阀37的出口18与阀芯43的封闭端46之间提供连通的负载信号管线45， 。 其中负载信号线（45）中的高压允许控制阀（37）朝向关闭位置移动，从而克服偏置构件（48）的偏置并在高压状态期间减少流向入口（29）的流量。

    ELECTRICALLY CONTROLLED HYDRAULIC VALVE CALIBRATION METHOD AND SYSTEM
    5.
    发明申请
    ELECTRICALLY CONTROLLED HYDRAULIC VALVE CALIBRATION METHOD AND SYSTEM 审中-公开
    电控液压阀校准方法与系统

    公开(公告)号：WO2009140253A3

    公开(公告)日：2010-01-21

    申请号：PCT/US2009043582

    申请日：2009-05-12

    Applicant: CATERPILLAR INC ,  ZHANG JIAO ,  YOO BENJAMIN ,  EGELJA ALEKSANDAR M ,  SHANG TONGLIN ,  BESCHORNER MATTHEW J

    Inventor： ZHANG JIAO ,  YOO BENJAMIN ,  EGELJA ALEKSANDAR M ,  SHANG TONGLIN ,  BESCHORNER MATTHEW J

    IPC: F15B21/02 ,  E02F9/20 ,  F15B13/044

    CPC classification number: G01F15/005 ,  F15B19/002 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/31511 ,  F15B2211/327 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/665 ,  F15B2211/6652 ,  F15B2211/6654 ,  F16K37/0083

    Abstract: A method of calibrating an electrically controlled hydraulic valve (28, 32, 36, 40) having a known relationship between flow rate through the valve and displacement of a valve element (63, 73, 83, 93) is disclosed. The method includes ascertaining a first current level (IQ) for actuating the electrically controlled hydraulic valve to move the valve element to a position adjacent an inlet port, and a first displacement (Xo) of the valve element responsive to the first current level. The method also includes ascertaining a second current level (/2) for actuating the electrically controlled hydraulic valve to move the valve element from the position adjacent the inlet port to a position permitting flow through the inlet port, and ascertaining a second displacement (X2) of the valve element responsive to the second current level. The method further includes establishing a relationship between current and displacement associated with the electrically controlled hydraulic valve.

    Abstract translation: 公开了一种校准具有通过阀的流量和阀元件（63,73,83,93）的位移之间已知关系的电控液压阀（28,32,36,40）的方法。 该方法包括确定用于致动电控液压阀以将阀元件移动到与入口相邻的位置的第一电流水平（IQ），以及响应于第一电流水平的阀元件的第一位移（Xo）。 该方法还包括确定用于致动电控液压阀的第二电流水平（/ 2），以将阀元件从邻近入口端口的位置移动到允许流过入口的位置，并确定第二位移（X2） 的阀元件响应于第二电流电平。 该方法还包括建立与电控液压阀相关联的电流和位移之间的关系。

    ELECTRICALLY CONTROLLED HYDRAULIC VALVE CALIBRATION METHOD AND SYSTEM
    6.
    发明申请
    ELECTRICALLY CONTROLLED HYDRAULIC VALVE CALIBRATION METHOD AND SYSTEM 审中-公开
    电控液压阀校准方法与系统

    公开(公告)号：WO2009140253A2

    公开(公告)日：2009-11-19

    申请号：PCT/US2009/043582

    申请日：2009-05-12

    Applicant: CATERPILLAR INC. ,  ZHANG, Jiao ,  YOO, Benjamin ,  EGELJA, Aleksandar, M. ,  SHANG, Tonglin ,  BESCHORNER, Matthew, J.

    Inventor： ZHANG, Jiao ,  YOO, Benjamin ,  EGELJA, Aleksandar, M. ,  SHANG, Tonglin ,  BESCHORNER, Matthew, J.

    CPC classification number: G01F15/005 ,  F15B19/002 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/31511 ,  F15B2211/327 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/665 ,  F15B2211/6652 ,  F15B2211/6654 ,  F16K37/0083

    Abstract: A method of calibrating an electrically controlled hydraulic valve (28, 32, 36, 40) having a known relationship between flow rate through the valve and displacement of a valve element (63, 73, 83, 93) is disclosed. The method includes ascertaining a first current level (IQ) for actuating the electrically controlled hydraulic valve to move the valve element to a position adjacent an inlet port, and a first displacement (Xo) of the valve element responsive to the first current level. The method also includes ascertaining a second current level (/2) for actuating the electrically controlled hydraulic valve to move the valve element from the position adjacent the inlet port to a position permitting flow through the inlet port, and ascertaining a second displacement (X2) of the valve element responsive to the second current level. The method further includes establishing a relationship between current and displacement associated with the electrically controlled hydraulic valve.

    Abstract translation: 公开了一种校准具有通过阀的流量和阀元件（63,73,83,93）的位移之间已知关系的电控液压阀（28,32,36,40）的方法。 该方法包括确定用于致动电控液压阀以将阀元件移动到与入口相邻的位置的第一电流水平（IQ），以及响应于第一电流水平的阀元件的第一位移（Xo）。 该方法还包括确定用于致动电控液压阀的第二电流水平（/ 2），以将阀元件从邻近入口端口的位置移动到允许流过入口的位置，并确定第二位移（X2） 的阀元件响应于第二电流电平。 该方法还包括建立与电控液压阀相关联的电流和位移之间的关系。

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