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    HST cooling circuit
    3.
    发明授权
    HST cooling circuit 失效
    HST冷却电路

    公开(公告)号：US08468818B2

    公开(公告)日：2013-06-25

    申请号：US12530930

    申请日：2008-03-12

    申请人： Koji Hyodo ,  Kazuo Ishida ,  Tsuyoshi Takeyama ,  Tadayoshi Aoki ,  Takehiko Katsuragi ,  Shoroku Kawahara

    发明人： Koji Hyodo ,  Kazuo Ishida ,  Tsuyoshi Takeyama ,  Tadayoshi Aoki ,  Takehiko Katsuragi ,  Shoroku Kawahara

    IPC分类号： F16D31/02

    CPC分类号： F16H61/448 ,  F15B7/006 ,  F15B7/008 ,  F15B21/042 ,  F15B2211/20576 ,  F15B2211/615 ,  F15B2211/62 ,  F15B2211/7058 ,  F15B2211/7128 ,  F16H61/4078 ,  F16H61/4165

    摘要： There are provided: an HST hydraulic circuit that is formed through a closed circuit connection of a variable displacement hydraulic pump 2 and first and second variable displacement hydraulic motors 3 and 4; a charge pump 6 that replenishes the HST hydraulic circuit with hydraulic oil; a cooling circuit through which an excess of the hydraulic oil that has been replenished from the charge pump 6 to the HST hydraulic circuit is returned to a reservoir through the hydraulic pump 2, the first hydraulic motor 3, and the second hydraulic motor 4; a hydraulic source 7 that supplies hydraulic oil to an hydraulic device other than the first and second hydraulic motors; and a merge circuit through which a portion of hydraulic oil from the hydraulic source 7 is merged into an intermediate oil line 22 that lies downstream of the first hydraulic motor 3 and upstream of the second hydraulic motor 4 in the cooling circuit.

    摘要翻译： 提供：通过可变排量液压泵2和第一和第二可变排量液压马达3和4的闭路连接形成的HST液压回路; 电动泵6，用液压油补充HST液压回路; 通过液压泵2，第一液压马达3和第二液压马达4将从充电泵6补充的过剩的液压油返回到HST液压回路的冷却回路返回到储油器; 液压源7，其向第一和第二液压马达以外的液压装置供给液压油; 以及将来自液压源7的液压油的一部分合并到冷却回路中的第一液压马达3的下游侧和第二液压马达4的上游侧的中间油路22的合流回路。

    PTO driven hydraulic system
    4.
    发明授权
    PTO driven hydraulic system 有权
    PTO驱动液压系统

    公开(公告)号：US08230954B2

    公开(公告)日：2012-07-31

    申请号：US12843548

    申请日：2010-07-26

    申请人： David S. Majkrzak

    发明人： David S. Majkrzak

    IPC分类号： B60K17/28

    CPC分类号： F16H61/4078 ,  F16H57/0402 ,  F16H61/4165

    摘要： A hydraulic system operably coupled to a vehicle, the vehicle having at least one PTO drive and having a hydraulic system for, in part, cooling hydraulic fluid, includes a closed hydraulic circuit having at least a first and a second hydraulic loop, a pump being a component of each of the at least a first and a second hydraulic loops, the pump being operably, rotatably coupled to the PTO drive, the first hydraulic loop having a feed line fluidly coupled to the vehicle hydraulic system and to the pump and a return line in fluid communication with the pump and operably, fluidly coupled to the vehicle hydraulic system; and the second hydraulic loop having a pressure line fluidly coupled to a output of the pump and a return line fluidly coupled to a pump return inlet, the second hydraulic loop being fluidly couplable to an implement for providing hydraulic power thereto. A method of forming the hydraulic system is included.

    摘要翻译： 可操作地联接到车辆的液压系统，所述车辆具有至少一个PTO驱动器并且具有用于部分地冷却液压流体的液压系统，所述液压系统包括具有至少第一和第二液压回路的闭合液压回路，泵是 所述至少第一和第二液压回路中的每一个的部件，所述泵可操作地可旋转地联接到所述PTO驱动器，所述第一液压回路具有流体地联接到所述车辆液压系统和所述泵的进给线 与泵流体连通并且可操作地，流体地联接到车辆液压系统; 并且所述第二液压回路具有流体耦合到所述泵的输出的压力线和流体地联接到泵返回入口的返回线，所述第二液压回路可流体地联接到用于向其提供液压动力的工具。 包括形成液压系统的方法。

    Control system for traction transmission and hydraulic motor used therein
    5.
    发明授权
    Control system for traction transmission and hydraulic motor used therein 有权
    牵引传动控制系统及其中使用的液压马达

    公开(公告)号：US08185279B2

    公开(公告)日：2012-05-22

    申请号：US12020293

    申请日：2008-01-25

    申请人： Roni Ryyppö

    发明人： Roni Ryyppö

    IPC分类号： G06F7/00

    CPC分类号： F16H61/4078 ,  B60K17/10 ,  B60K28/165 ,  F03C1/045 ,  F16H61/448 ,  Y10T477/10 ,  Y10T477/631

    摘要： A control system (100) for traction transmission has at least two multi capacity motors (M1, M2), which are adapted to rotate a vehicle's wheels (J1, J2) and which multi capacity motor (M1) is arranged to rotate a traction wheel (J2), and the multi capacity motor (M2) is arranged to rotate another traction wheel (J1), whereby motor parts (M1a and M2a) of partial rotational volumes of the multi capacity motors (M1, M2) can be connected in series, whereby the anti-slip is on.

    摘要翻译： 用于牵引传动的控制系统（100）具有至少两个多容量电动机（M1，M2），其适于旋转车辆车轮（J1，J2），并且所述多容量电动机（M1）被布置成使牵引轮 （J2），并且多容量电动机（M2）被布置成旋转另一个牵引轮（J1），由此多容量电动机（M1，M2）的部分旋转体积的电动机部件（M1a和M2a）可以串联连接 ，由此防滑打开。

    Pump unit
    6.
    发明申请
    Pump unit 失效
    泵单元

    公开(公告)号：US20060104842A1

    公开(公告)日：2006-05-18

    申请号：US11269642

    申请日：2005-11-09

    申请人： Takeaki Nozaki

    发明人： Takeaki Nozaki

    IPC分类号： A61M1/00

    CPC分类号： F04B1/22 ,  F04B23/06 ,  F04B23/106 ,  F16D31/02 ,  F16H39/14 ,  F16H61/4078 ,  F16H61/44 ,  F16H61/448

    摘要： There is provided a pump unit including: a pump shaft operatively connected to a driving source; a cylinder block rotatably driven by the pump shaft; a piston unit accommodated in the cylinder block in a slidable manner in an axial direction; a movable swash plate oscillatable on an operational axis perpendicular to the pump shaft, the movable swash plate defining a slide range of the piston unit in abutment against the piston unit; a transmission gear supported by the pump shaft in a relatively non-rotatable manner, the transmission gear being disposed in such a manner as to face to the movable swash plate; a driven member operatively driven by the transmission gear; and a pump case supporting the pump shaft and accommodating therein the cylinder block, the piston unit, the movable swash plate, the transmission gear and the driven member.

    摘要翻译： 提供了一种泵单元，包括：可操作地连接到驱动源的泵轴; 由泵轴可旋转地驱动的气缸体; 容纳在气缸体中的活塞单元，其沿轴向滑动; 可动斜盘，其可在垂直于所述泵轴的操作轴上振荡，所述可动斜盘限定所述活塞单元的滑动范围与所述活塞单元抵接; 由泵轴以相对不可旋转的方式支撑的传动齿轮，传动齿轮以与可动斜盘相对的方式设置; 由传动齿轮可操作地驱动的从动构件; 以及泵壳，其支撑泵轴并容纳缸体，活塞单元，可动斜盘，变速齿轮和从动构件。

    Travel motor hydraulic control system for a construction machine
    7.
    发明授权
    Travel motor hydraulic control system for a construction machine 有权
    工程机械行程电机液压控制系统

    公开(公告)号：US06474063B2

    公开(公告)日：2002-11-05

    申请号：US09912304

    申请日：2001-07-26

    申请人： Hiroshi Sawada ,  Seiichi Fuchita ,  Kouichi Kawamura ,  Toshio Yokoyama

    发明人： Hiroshi Sawada ,  Seiichi Fuchita ,  Kouichi Kawamura ,  Toshio Yokoyama

    IPC分类号： F16D3102

    CPC分类号： F16H61/456 ,  B62D11/183 ,  E02F9/2228 ,  E02F9/225 ,  E02F9/2253 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/22 ,  F16H59/66 ,  F16H61/4035 ,  F16H61/4078 ,  F16H61/4148

    摘要： A travel motor hydraulic control system for a construction machine having a plurality of hydraulic pumps which supply individually pressurized fluid for a plurality of hydraulic travel motors and a plurality of flow control valves which control the flow rate of the pressurized fluid to be supplied to the motor during an ordinary work. A controller receives a control signal representative of a travel control lever stroke sensed by a position sensor and a control signal detected by a pressure sensor, determines if the vehicle is traveling up a slope, and transmits a command signal to a solenoid operated valve to move a pilot operated shut off valve toward a valve-closing position, thereby the travel hydraulic motors are individually supplied the pressurized fluid from the hydraulic pumps.

    摘要翻译： 一种用于建筑机械的行驶马达液压控制系统，具有多个液压泵，所述多个液压泵为多个液压行进马达单独提供加压流体，以及多个流量控制阀，其控制供给马达的加压流体的流量 在普通的工作 控制器接收表示由位置传感器检测到的行驶控制杆行程的控制信号和由压力传感器检测到的控制信号，确定车辆是否正在上坡上行驶，并将指令信号发送到电磁阀以移动 先导操作的截止阀朝向阀关闭位置，由此行驶液压马达分别从液压泵供给加压流体。

    Hydraulic drive system for construction machine
    8.
    发明授权
    Hydraulic drive system for construction machine 失效

    公开(公告)号：US5155996A

    公开(公告)日：1992-10-20

    申请号：US566466

    申请日：1990-08-20

    申请人： Akira Tatsumi ,  Toichi Hirata ,  Masakazu Haga ,  Eiki Izumi

    发明人： Akira Tatsumi ,  Toichi Hirata ,  Masakazu Haga ,  Eiki Izumi

    IPC分类号： E02F9/22

    CPC分类号： F16H61/4078 ,  E02F9/2235 ,  E02F9/2246 ,  E02F9/2296 ,  F16H61/433 ,  B60W10/06 ,  F15B2211/20553 ,  F15B2211/253 ,  F15B2211/50536 ,  F16H2059/6846

    摘要： A hydraulic drive system for a construction machine comprising a prime mover (1), a hydraulic pump (2) of variable displacement type driven by the prime mover, at least one hydraulic actuator (6) driven by a hydraulic fluid delivered from the hydraulic pump, control valves connected between the hydraulic pump and the actuator for controlling a flow rate of the hydraulic fluid supplied to the actuator dependent on the operation amount of control apparatus, pump control apparatus for controlling a displacement volume of the hydraulic pump dependent on the operation amount of the control apparatus such that the delivery rate of the hydraulic pump is increased with an increase in the operation amount, and prime mover control apparatus (29) for controlling a revolution speed of the prime mover. The prime mover control apparatus (29) has a function (33, 36) to monitor saturation of the delivery rate of the hydraulic pump (2), and to raise up the revolution speed of the prime mover (1) to prevent the pump from the saturation when the hydraulic pump reaches a predetermined state concerned with the saturation.