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    HYDRAULIC CONTROL DEVICE AND CONSTRUCTION MACHINERY INCLUDING SAME
    4.
    发明申请
    HYDRAULIC CONTROL DEVICE AND CONSTRUCTION MACHINERY INCLUDING SAME 有权
    液压控制装置及其构造机械

    公开(公告)号：US20140318116A1

    公开(公告)日：2014-10-30

    申请号：US14364018

    申请日：2012-11-30

    申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA ,  KABUSHIKI KAISHA KCM

    发明人： Makoto Ito ,  Ryo Yamamoto ,  Kazuto Fujiyama ,  Hiroyasu Kodera ,  Shinichiro Tanaka

    IPC分类号： B62D5/07 ,  F15B11/16 ,  E02F9/22

    CPC分类号： B62D5/075 ,  B62D5/065 ,  B62D5/07 ,  E02F9/0841 ,  E02F9/225 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/042 ,  F15B11/162 ,  F15B11/167 ,  F15B2211/351 ,  F15B2211/455

    摘要： A hydraulic control device includes: a hydraulic pump connected in parallel to steering and boom cylinders; a steering control valve that controls the direction of operating oil flowing through the steering cylinders; a boom control valve that connects the hydraulic pump to a tank when the valve is at a neutral position and controls the direction of the oil flowing through the boom cylinders when the valve is at an offset position; a meter-in pressure compensator that increases flow rate of the oil flowing through a variable restrictor of the steering control valve in accordance with pressure in front of and behind the restrictor; and a bleed-off pressure compensator that decreases flow rate of the oil flowing through the boom control valve in accordance with the increase in pressure of the oil flowing through the steering cylinders to maintain the predetermined pressure of the oil in the steering control circuit.

    摘要翻译： 液压控制装置包括：与转向臂和动臂缸并联连接的液压泵; 转向控制阀，其控制流过转向缸的操作油的方向; 一个悬臂控制阀，当阀处于中间位置时，将液压泵连接到油箱，并且当阀处于偏移位置时控制流过动臂油缸的油的方向; 一个内置的压力补偿器，其根据限制器前面和后面的压力增加流过转向控制阀的可变节流器的油流量; 以及泄放压力补偿器，其根据流过转向缸的油的压力的增加而降低流过动臂控制阀的油的流量，以保持转向控制回路中的油的预定压力。

    Power transmission device for vehicle
    5.
    发明授权
    Power transmission device for vehicle 有权

    公开(公告)号：US09746062B2

    公开(公告)日：2017-08-29

    申请号：US14812049

    申请日：2015-07-29

    申请人： Hitachi Construction Machinery Co., Ltd. ,  KABUSHIKI KAISHA KCM

    发明人： Shuuji Kanda ,  Junichi Shirane ,  Hiroki Fujita

    IPC分类号： F16H45/02 ,  F16H47/06 ,  F16H61/00 ,  F16H61/14

    CPC分类号： F16H45/02 ,  F16H61/0009 ,  F16H61/143 ,  F16H2045/0205 ,  F16H2045/021 ,  F16H2045/0215 ,  F16H2061/0046

    摘要： A lockup device (63) includes a lockup clutch (64) for establishing connection between a rotating body (44) of a torque converter (41) and a transmission shaft (55), a lockup control valve (70) that controls supply/discharge of pressurized oil from a hydraulic pump (69) to/from the lockup clutch (64), and a lockup oil passage (75) that introduces pressurized oil from the lockup control valve (70) to the lockup clutch (64). The lockup control valve (70) is arranged on an outer side face (18B) of an intermediate casing (18) in a position of radially overlapping the transmission shaft (55) in a radial direction of the transmission shaft (55). Further, a casing side oil passage (76) constituting the lockup oil passage (75) is formed as a linear oil passage that linearly extends in the radial direction of the transmission shaft (55) between the lockup control valve (70) and the transmission shaft side oil passage (77).

    Work Vehicle
    8.
    发明申请
    Work Vehicle 有权
    工作车辆

    公开(公告)号：US20150098784A1

    公开(公告)日：2015-04-09

    申请号：US14505685

    申请日：2014-10-03

    申请人： Hitachi Construction Machinery Co., Ltd. ,  KABUSHIKI KAISHA KCM

    发明人： Koji HYODO ,  Atsushi SHIMAZU ,  Masashi YAMASHITA ,  Tetsuji TANAKA ,  Isamu AOKI ,  Shoroku KAWAHARA

    IPC分类号： E02F9/22 ,  E02F3/28 ,  E02F9/08 ,  F01N11/00 ,  F02D41/00

    CPC分类号： E02F9/2246 ,  E02F3/283 ,  E02F9/0883 ,  E02F9/2066 ,  E02F9/2278 ,  E02F9/2289 ,  F01N3/2066 ,  F01N11/00 ,  F01N2550/05 ,  F01N2590/08 ,  F01N2610/02 ,  F01N2900/1814 ,  F02D41/0097 ,  F02D41/0235 ,  F02D2200/101 ,  F02D2250/26 ,  F02D2250/36 ,  Y02A50/2325

    摘要： A work vehicle includes: a hydraulic pump driven by an engine; a rotational speed detection unit that detects an actual rotational speed of the engine; an exhaust gas purification device that purifies nitrogen oxide in exhaust gas discharged from the engine using a reducing agent solution stored in a reducing agent tank; a torque control unit that decreases output torque of the engine according to decrease of a detected remaining amount of the reducing agent solution; and a storage device that stores a threshold value not less than an engine rotational speed at which the hydraulic pump starts discharge, wherein when the actual rotational speed of the engine is not more than the threshold value, the torque control unit does not decrease the output torque of the engine regardless of the remaining amount of the reducing agent solution detected by the remaining amount detection device.

    摘要翻译： 工作车辆包括：由发动机驱动的液压泵; 转速检测单元，其检测发动机的实际转速; 使用存储在还原剂罐中的还原剂溶液净化从发动机排出的废气中的氮氧化物的排气净化装置; 扭矩控制单元，其根据检测出的还原剂溶液剩余量的减少而减小发动机的输出转矩; 以及存储装置，其存储不低于所述液压泵开始排出的发动机转速的阈值，其中，当所述发动机的实际转速不大于所述阈值时，所述转矩控制单元不会减小所述输出 发动机的扭矩，而与由剩余量检测装置检测到的还原剂溶液的剩余量无关。