中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.025 seconds)

    HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR RECOVERY
    1.
    发明申请
    HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR RECOVERY 有权
    具有回转电动机回收的液压控制系统

    公开(公告)号：US20140060024A1

    公开(公告)日：2014-03-06

    申请号：US13718922

    申请日：2012-12-18

    Applicant: CATERPILLAR INC.

    Inventor： Jiao ZHANG ,  Pengfei MA ,  Tonglin SHANG ,  Rustu CESUR ,  Bryan J. HILLMAN ,  Peter SPRING ,  Lawrence J. TOGNETTI ,  Randal N. PETERSON ,  Dayao CHEN

    IPC: F15B21/14

    CPC classification number: F15B21/14 ,  F15B1/024 ,  F15B2211/625 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/7058 ,  F15B2211/75 ,  F15B2211/755 ,  F15B2211/88

    Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, a swing motor, and at least one control valve configured to control fluid flow between the pump, the swing motor, and the tank. The hydraulic system may also have an accumulator configured to selectively receive pressurized fluid discharged from the swing motor and selectively supply pressurized fluid to the swing motor, at least one accumulator valve, and a controller. The controller may be configured to receive input indicative of a difference between desired and actual speeds of the swing motor, and determine if the swing motor is accelerating or decelerating based on the difference. The controller may also be configured to control the at least one accumulator valve to cause the accumulator to selectively receive or supply pressurized fluid only when the swing motor is accelerating or decelerating.

    Abstract translation: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵，回转马达和构造成控制泵，回转马达和罐之间的流体流动的至少一个控制阀。 液压系统还可以具有蓄能器，其被配置为选择性地接收从回转马达排出的加压流体，并且选择性地将加压流体供应到回转马达，至少一个储能阀和控制器。 控制器可以被配置为接收指示回转马达的期望速度和实际速度之间的差异的输入，并且基于该差异来确定回转马达是加速还是减速。 控制器还可以被配置成控制至少一个蓄能阀，使得蓄能器仅在回转马达正在加速或减速时有选择地接收或供应加压流体。

    METHOD FOR MONITORING OPERATION OF A HYDRAULIC SYSTEM
    2.
    发明公开
    METHOD FOR MONITORING OPERATION OF A HYDRAULIC SYSTEM 审中-公开

    公开(公告)号：US20240068204A1

    公开(公告)日：2024-02-29

    申请号：US18239478

    申请日：2023-08-29

    Applicant: Caterpillar Inc.

    Inventor： Pengfei MA

    IPC: E02F9/22 ,  F15B11/16

    CPC classification number: E02F9/2235 ,  F15B11/165 ,  F15B2211/633

    Abstract: The present invention pertains to method for monitoring operation of a hydraulic system, in particular of a hydraulic system of a working machine, having at least one hydraulic actuator. The method comprises a step of determining a predefined operating condition of the hydraulic system; a step of determining an input power parameter being indicative of a power provided by an engine to the hydraulic system during the predetermined operating condition; a step of determining an output power parameter being indicative of a power provided by the hydraulic actuator during the predetermined operating condition; and a step of determining a fault condition of the hydraulic system based on the input power parameter and the output power parameter.

    HYDRAULIC CONTROL SYSTEM HAVING ELECTRONIC FLOW LIMITING
    4.
    发明申请
    HYDRAULIC CONTROL SYSTEM HAVING ELECTRONIC FLOW LIMITING 有权
    具有电子流量限制的液压控制系统

    公开(公告)号：US20140060025A1

    公开(公告)日：2014-03-06

    申请号：US13718938

    申请日：2012-12-18

    Applicant: CATERPILLAR INC.

    Inventor： Rustu CESUR ,  Jiao ZHANG ,  Tonglin SHANG ,  Bryan J. HILLMAN ,  Peter SPRING ,  Lawrence J. TOGNETTI ,  Pengfei MA

    IPC: F15B21/08

    CPC classification number: F15B21/08 ,  E02F9/2203 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/30575 ,  F15B2211/30595 ,  F15B2211/327 ,  F15B2211/6306 ,  F15B2211/6309 ,  F15B2211/6346 ,  F15B2211/6654 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/75 ,  F15B2211/86

    Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, an actuator, and a control valve configured to direct fluid from the pump to the actuator and from the actuator to the tank. The hydraulic control system may also have a pressure sensor to generate a first signal indicative of a pressure differential across the control valve, an operator input device to generate a second signal indicative of a desired movement of the actuator, and a controller. The controller may be configured to make a first determination of an opening amount of the control valve based on the second signal, and to make a second determination based on the first signal of whether the opening amount will result in overspeeding of the actuator. The controller may also be configured to reduce the opening amount based on the second determination.

    Abstract translation: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵，致动器和配置成将流体从泵引导到致动器并且从致动器引导到罐的控制阀。 液压控制系统还可以具有压力传感器以产生指示跨越控制阀的压力差的第一信号，操作者输入装置以产生指示致动器的期望运动的第二信号和控制器。 控制器可以被配置为基于第二信号来首先确定控制阀的打开量，并且基于第一信号来确定开启量是否将导致致动器的超速。 控制器还可以被配置为基于第二确定来减少打开量。

    ENERGY RECOVERY SYSTEM HAVING PEAK-SHAVING ACCUMULATOR
    5.
    发明申请
    ENERGY RECOVERY SYSTEM HAVING PEAK-SHAVING ACCUMULATOR 审中-公开
    具有峰值冲击蓄能器的能量回收系统

    公开(公告)号：US20140119868A1

    公开(公告)日：2014-05-01

    申请号：US13665437

    申请日：2012-10-31

    Applicant: CATERPILLAR INC.

    Inventor： Gang Victor WEN ,  Pengfei MA ,  Jiao ZHANG ,  Tonglin SHANG

    IPC: F15B1/033 ,  E02F3/42 ,  F15B13/02

    CPC classification number: F15B13/02 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2242 ,  E02F9/2292 ,  E02F9/2296 ,  F15B1/027 ,  F15B21/14 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/7058 ,  F15B2211/7135

    Abstract: An energy recovery system for a machine is disclosed. The energy recovery system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, an actuator, and an actuator control valve movable to direct pressurized fluid from the pump to the actuator and from the actuator to the tank to move the actuator. The energy recovery system may also have a motor connected to selectively receive fluid discharged from the actuator and mechanically connected to the pump, and an accumulator configured to store fluid discharged from the motor and to direct stored fluid to the motor to drive the pump.

    Abstract translation: 公开了一种用于机器的能量回收系统。 能量回收系统可以具有罐，配置成从罐抽出流体并加压流体的泵，致动器和致动器控制阀，所述致动器和致动器控制阀可移动以将加压流体从泵引导到致动器，并且从致动器引导到罐， 移动执行器。 能量回收系统还可以具有电动机，其连接以选择性地接收从致动器排放并且机械地连接到泵的流体，以及蓄电池，其被配置为存储从电动机排出的流体并将存储的流体引导到电动机以驱动泵。

    ENERGY RECOVERY SYSTEM HAVING INTEGRATED BOOM/SWING CIRCUITS
    6.
    发明申请
    ENERGY RECOVERY SYSTEM HAVING INTEGRATED BOOM/SWING CIRCUITS 有权
    具有整合式升压电路的能源回收系统

    公开(公告)号：US20140119867A1

    公开(公告)日：2014-05-01

    申请号：US13665384

    申请日：2012-10-31

    Applicant: CATERPILLAR INC.

    Inventor： Gang Victor WEN ,  Pengfei MA ,  Jiao ZHANG ,  Tonglin SHANG

    IPC: F15B21/14 ,  E02F3/43 ,  E02F3/28 ,  F15B1/027 ,  F15B13/04

    CPC classification number: E02F9/2296 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2242 ,  E02F9/2292 ,  F15B1/027 ,  F15B1/0275 ,  F15B11/17 ,  F15B13/06 ,  F15B21/14 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/7058 ,  F15B2211/7135

    Abstract: An energy recovery system for a machine is disclosed. The energy recovery system may have a boom circuit with at least a one linear actuator configured to move a work tool, and a boom accumulator configured to selectively collect pressurized fluid from the at least one linear actuator and to discharge pressurized fluid back to the at least one linear actuator. The energy recovery system may also have a swing circuit with a swing motor configured to move the work tool, and a swing accumulator configured to selectively collect pressurized fluid from the swing motor and discharge pressurized fluid back to the swing motor. The energy recovery system may further have a common accumulator passage fluidly connecting the boom accumulator and the swing accumulator.

    Abstract translation: 公开了一种用于机器的能量回收系统。 能量回收系统可以具有吊杆回路，其中至少一个线性致动器被配置为移动作业工具;以及悬臂收集器，其构造成选择性地从至少一个线性致动器收集加压流体，并将加压流体排回到至少 一个线性执行器。 能量回收系统还可以具有摆动回路，摆动马达构造成移动作业工具;摆动储存器构造成选择性地收集来自回转马达的加压流体，并将加压流体排放回到回转马达。 能量回收系统可以进一步具有通过流体连接起重臂蓄能器和摆动蓄能器的公共蓄能器通道。

    HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR ENERGY RECOVERY
    7.
    发明申请
    HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR ENERGY RECOVERY 有权
    具有电动机能量回收的液压控制系统

    公开(公告)号：US20140060023A1

    公开(公告)日：2014-03-06

    申请号：US13718882

    申请日：2012-12-18

    Applicant: CATERPILLAR INC.

    Inventor： Jiao ZHANG ,  Lawrence J. TOGNETTI ,  Pengfei MA ,  Dayao CHEN ,  John FERRAZ, JR. ,  Tetsuya YOSHINO

    IPC: F15B1/027

    CPC classification number: F15B1/027 ,  F15B1/024 ,  F15B21/14 ,  F15B2211/625 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/7058 ,  F15B2211/88

    Abstract: A hydraulic control system is disclosed for use in a machine. The hydraulic control system may have a work tool, a motor configured to swing the work tool, a tank, a pump configured to draw fluid from the tank and pressurize the fluid, and a control valve operable to control fluid flow from the pump to the motor and from the motor to the tank via first and second chamber passages to affect motion of the motor. The hydraulic control system may also have an accumulator, and an accumulator circuit configured to selectively direct fluid discharged from the motor to the accumulator for storage and to direct stored fluid from the accumulator to the motor to assist the motor. The hydraulic control system may further have a selector valve configured to selectively connect a higher pressure one of the first and second chamber passages with the accumulator, and a single pressure relief valve disposed within the accumulator circuit and configured to relief pressure from opposing sides of the motor.

    Abstract translation: 公开了一种在机器中使用的液压控制系统。 液压控制系统可以具有工作工具，构造成摆动工作工具的电动机，一个构造成从罐中抽出流体并对流体加压的泵;以及控制阀，该控制阀可操作以控制从泵到 电动机，并通过第一和第二室通道从电动机到燃料箱，以影响电动机的运动。 液压控制系统还可以具有蓄能器和蓄电池电路，其被配置为选择性地将从电动机排出的流体引导到蓄电池以进行存储，并将存储的流体从蓄能器引导到电动机以辅助电动机。 液压控制系统还可以具有一个选择阀，其配置成选择性地将第一和第二室通道中的较高压力的一个与蓄能器连接，以及一个设置在蓄电池回路内的单个泄压阀， 发动机。

    BRAKE SLACK ADJUSTER HAVING SENSING PISTON WITH ORIFICE AND SYSTEMS, COMPONENTS, AND METHODS THEREOF
    8.
    发明申请
    BRAKE SLACK ADJUSTER HAVING SENSING PISTON WITH ORIFICE AND SYSTEMS, COMPONENTS, AND METHODS THEREOF 有权

    公开(公告)号：US20220333658A1

    公开(公告)日：2022-10-20

    申请号：US17231039

    申请日：2021-04-15

    Applicant: Caterpillar Inc.

    Inventor： Pengfei MA ,  Puning WEI ,  Aleksander GUST

    IPC: F16D65/76

    Abstract: A slack adjuster assembly and systems, components, and methods can comprise a sensing piston assembly that includes a housing, a piston slidably provided in the housing, and a biasing member provided in the housing. The biasing member can be configured to bias the piston away from an end wall of the housing. The piston can have an end wall opposite the end wall of the housing, where the end wall of the piston can have at least one orifice that extends from a first side of the end wall of the piston to a second side of the end wall of the piston.

Patent Agency Ranking