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公开(公告)号：US10337532B2
公开(公告)日：2019-07-02
申请号：US15367675
申请日：2016-12-02
Applicant: Caterpillar Inc.
Inventor： Pengfei Ma , Aleksandar Egelja , Justin Speichinger , Shuhei Orimoto , Tetsuya Yoshino , Hideki Nakajima , Shogo Tada , Aleem Junaidi , Bryan Johnson , Matthew Beschorner
IPC: F15B13/04 , F15B11/08 , F15B13/02 , F15B21/14 , F15B1/26 , F15B13/044 , F15B11/00 , F15B11/024
Abstract: A hydraulic system is disclosed. The hydraulic system may include a source of pressurized fluid; a tank; a hydraulic actuator including a first chamber and a second chamber; a first independent metering valve disposed between and fluidly connected to the source, the tank, and the first chamber of the hydraulic actuator; and a second independent metering valve disposed between and fluidly connected to the source, the tank, and the second chamber of the hydraulic actuator. Each of the first independent metering valve and the second independent metering valve may include a spool and a valve actuator disposed on one side of the spool. The valve actuator may include a push coil, a pull coil, and a force feedback mechanism configured to balance a force of the push coil and the pull coil.
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公开(公告)号：US20140165546A1
公开(公告)日：2014-06-19
申请号：US13718136
申请日：2012-12-18
Applicant: CATERPILLAR INC.
Inventor： Rustin Metzger , Joshua Callaway , Justin Speichinger
IPC: F04B49/06
CPC classification number: F04B49/065 , F04B49/002 , F04B49/22
Abstract: A system and method for controlling fluid flow through a hydraulic valve in a work machine is disclosed. The system and method may include receiving an input command by a controller configured to control a fluid flow to an actuator, the input command generated by an input controller. The system and method may also include receiving a parameter indicative of pump flow by the controller, determining a first valve command corresponding to the input command and determining a second valve command based upon the parameter that achieves the fluid flow to the actuator corresponding to the first valve command.
Abstract translation: 公开了一种用于控制通过工作机械中的液压阀的流体流动的系统和方法。 该系统和方法可以包括由配置成控制向致动器的流体流动的控制器接收由输入控制器产生的输入命令的输入命令。 系统和方法还可以包括接收由控制器指示泵流量的参数，确定与输入命令相对应的第一阀门命令，并且基于实现与第一阀门对应的致动器的流体流动的参数确定第二阀门命令 阀门指令。
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公开(公告)号：US20180156244A1
公开(公告)日：2018-06-07
申请号：US15367675
申请日：2016-12-02
Applicant: Caterpillar Inc.
Inventor： Pengfei Ma , Aleksandar Egelja , Justin Speichinger , Shuhei Orimoto , Tetsuya Yoshino , Hideki Nakajima , Shogo Tada , Aleem Junaidi , Bryan Johnson , Matthew Beschorner
CPC classification number: F15B13/0402 , F15B1/26 , F15B11/003 , F15B11/024 , F15B11/08 , F15B13/021 , F15B13/024 , F15B13/044 , F15B13/0442 , F15B21/14 , F15B2011/0246 , F15B2211/50
Abstract: A hydraulic system is disclosed. The hydraulic system may include a source of pressurized fluid; a tank; a hydraulic actuator including a first chamber and a second chamber; a first independent metering valve disposed between and fluidly connected to the source, the tank, and the first chamber of the hydraulic actuator; and a second independent metering valve disposed between and fluidly connected to the source, the tank, and the second chamber of the hydraulic actuator. Each of the first independent metering valve and the second independent metering valve may include a spool and a valve actuator disposed on one side of the spool. The valve actuator may include a push coil, a pull coil, and a force feedback mechanism configured to balance a force of the push coil and the pull coil.
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公开(公告)号：US09233723B1
公开(公告)日：2016-01-12
申请号：US14447925
申请日：2014-07-31
Applicant: Caterpillar Inc.
Inventor： Rustin Metzger , Justin Speichinger
Abstract: A hydraulic drive system may include a hydraulic motor and a drive sprocket. The hydraulic drive system may also include a torsional isolation member that is operably connected between the hydraulic motor and the drive sprocket. The torsional isolation member may be configured to operably disconnect the hydraulic motor from the drive sprocket when the drive sprocket reaches a predetermined torque load.
Abstract translation: 液压驱动系统可以包括液压马达和驱动链轮。 液压驱动系统还可以包括可操作地连接在液压马达和驱动链轮之间的扭转隔离构件。 扭转隔离构件可构造成当驱动链轮达到预定的扭矩负载时可操作地将液压马达与驱动链轮分离。
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