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    WORK MACHINE
    1.
    发明申请
    WORK MACHINE 审中-公开

    公开(公告)号：US20180251957A1

    公开(公告)日：2018-09-06

    申请号：US15756266

    申请日：2016-12-14

    申请人： KCM CORPORATION

    发明人： Koji HYODO

    IPC分类号： E02F9/22 ,  F01P5/04 ,  F02B37/12 ,  F02D29/04

    CPC分类号： E02F9/22 ,  E02F9/2066 ,  E02F9/2235 ,  E02F9/226 ,  F01P5/04 ,  F01P7/044 ,  F01P7/16 ,  F01P2060/02 ,  F01P2060/16 ,  F02B37/12 ,  F02B37/24 ,  F02B2039/164 ,  F02D23/00 ,  F02D29/04 ,  F02D41/0007 ,  F02D2200/021 ,  Y02T10/144

    摘要： To reduce increase of the temperature of a control device of a supercharger and increase the lifetime of the control device of the supercharger, a work machine includes a variable geometry supercharger having changeable supercharge pressure and a working device. The work machine includes a variable displacement work hydraulic pump configured to be driven by an engine and supply pressure oil to an actuator configured to drive the working device; a supercharger control device configured to control the supercharger; a temperature detection device configured to detect the temperature of the supercharger control device; and a main control device configured to restrict, in case the temperature of the supercharger control device is higher than a first temperature, a maximum absorbing torque of the work hydraulic pump as compared to case the temperature of the supercharger control device is lower than the first temperature.

    WORK VEHICLE
    3.
    发明申请
    WORK VEHICLE 审中-公开

    公开(公告)号：US20180251026A1

    公开(公告)日：2018-09-06

    申请号：US15754300

    申请日：2017-02-08

    申请人： KCM CORPORATION

    发明人： Masaki NUKII ,  Koji HYODO ,  Isamu AOKI ,  Tetsuji TANAKA

    IPC分类号： B60K17/10 ,  B60W10/06 ,  B60W10/103 ,  B60W10/30 ,  F01N3/08 ,  F02D29/04

    摘要： The present invention relates to a work vehicle including an engine, a hydraulic pump, a hydraulic motor to drive wheels, an HST circuit in which the hydraulic pump and the hydraulic motor are connected to each other in the form of a closed circuit, a reducing agent sensor that detects the state of a reducing agent used to clean exhaust gas from the engine, and an engine restrictor that restricts the rotational speed of the engine based on the output from the reducing agent sensor, and the work vehicle further includes a control unit that changes the tilting angle of the hydraulic pump or the hydraulic motor independently of the rotational speed of the engine to a tilting angle associated with minimum travel drive force necessary for self-travel of the work vehicle when the control unit determines that the engine restrictor has restricted the rotational speed of the engine.

    Work Vehicle
    5.
    发明申请
    Work Vehicle 审中-公开
    工作车辆

    公开(公告)号：US20160369479A1

    公开(公告)日：2016-12-22

    申请号：US15122208

    申请日：2015-05-13

    申请人： KCM CORPORATION

    发明人： Tetsuji TANAKA ,  Yasunori MIYAMOTO ,  Koji HYODO ,  Isamu AOKI ,  Katsuyuki KIRITA ,  Hiroaki YADA ,  Seiji NAKAGAWA ,  Masaki YOSHIKAWA

    IPC分类号： E02F9/20 ,  E02F3/34

    CPC分类号： E02F9/2004 ,  E02F3/34 ,  E02F3/431 ,  E02F9/2012

    摘要： A work vehicle, includes: a lift arm rotatably linked to a front portion of a vehicle body of a work vehicle so as to be allowed to swing along an up/down direction; an operation lever that can be operated within a range between a raising operation end position and a lowering operation end position, and is operated to raise and lower the lift arm; an up detent mechanism having a holding function for holding the operation lever at the raising operation end position once the operation lever is operated to the raising operation end position; and a down detent mechanism having a holding function for holding the operation lever at the lowering operation end position once the operation lever is operated to the lowering operation end position, wherein: when an angle of the lift arm becomes greater than a predetermined upper limit, the holding function of the up detent mechanism and the holding function of the down detent mechanism are disengaged.

    摘要翻译： 工作车辆包括：提升臂，其可旋转地连接到作业车辆的车体的前部，以便允许其沿上/下方向摆动; 操作杆，其可以在升高操作结束位置和下降操作结束位置之间的范围内操作，并且操作以升高和降低提升臂; 一个升降制动机构，具有保持功能，一旦操作杆被操作到升高操作结束位置，就将操作杆保持在升起操作结束位置; 以及具有保持功能的下降制动机构，一旦操作杆被操作到下降操作结束位置，操作杆保持在下降操作结束位置，其中：当提升臂的角度大于预定上限时， 上止动机构的保持功能和下止动机构的保持功能脱离。

    Wheel Loader
    6.
    发明申请
    Wheel Loader 有权

    公开(公告)号：US20210355657A1

    公开(公告)日：2021-11-18

    申请号：US16328857

    申请日：2017-09-29

    申请人： KCM Corporation

    发明人： Koji HYODO ,  Isamu AOKI ,  Tetsuji TANAKA ,  Koji SHIMAZAKI ,  Hironao SUZUKI

    IPC分类号： E02F9/22 ,  E02F9/20

    摘要： A wheel loader configured to reduce a sudden change in vehicle speed caused by an erroneous determination of a raising operation of a lift arm is provided. A wheel loader 1 includes an engine 3, a variable displacement type HST pump 41, a variable displacement type HST motor 42 coupled to the HST pump 41 in a closed circuit, a hydraulic pump for working device 43, a forward/reverse selector switch 62 for switching a forward movement and a backward movement of a vehicle body, a depression amount sensor 610 that detects a depression amount of an accelerator pedal 61, a pressure sensor 73 that detects a discharge pressure Pa of the hydraulic pump for working device 43, and a controller 5. The controller 5 determines whether a specific condition to identify an upward movement of a lift arm 21 during a forward travel of the vehicle body based on a forward/reverse switching signal, the depression amount of the accelerator pedal 61, and the discharge pressure Pa detected by the pressure sensor 73. When the specific condition is satisfied, the controller 5 controls a displacement volume of the HST motor 42 according to an increase of the discharge pressure Pa, so as to limit the vehicle speed.