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    Working vehicle
    4.
    发明授权
    Working vehicle 有权
    工作车辆

    公开(公告)号：US08220582B2

    公开(公告)日：2012-07-17

    申请号：US12785609

    申请日：2010-05-24

    申请人： Mitsuo Toyokawa ,  Shingo Fujioka ,  Yusuke Murakami ,  Tomoaki Watanabe ,  Masahiko Yoshino ,  Hiroto Mori ,  Noboru Sagawa ,  Kiyofumi Sakurahara

    发明人： Mitsuo Toyokawa ,  Shingo Fujioka ,  Yusuke Murakami ,  Tomoaki Watanabe ,  Masahiko Yoshino ,  Hiroto Mori ,  Noboru Sagawa ,  Kiyofumi Sakurahara

    IPC分类号： B60K20/00

    CPC分类号： F16H61/427 ,  B60Y2200/221 ,  F16H59/06 ,  F16H61/40 ,  F16H63/067 ,  F16H2059/0295 ,  Y10T74/20018

    摘要： A working vehicle includes a HST, forward and reverse pedals, a brake pedal, an intermediate link mechanism (ILM) operating in linkage with operation of the forward or reverse (F or R) pedal, a single shift rod receiving the operation from the ILM and rotating a trunnion shaft of the HST to a forward drive side and to a reverse drive side, a neutral return mechanism (NRM) having a cam plate rotating integrally with the trunnion shaft and forming a curved surface portion, a roller moving in contact with the curved surface portion, a lower return arm configured integrally with a return arm that includes the roller, and a first spring acting in a direction of returning the trunnion shaft to a neutral position, a lower return arm onto which the first spring is latched, a F pedal onto which is latched a second spring acting in a direction of returning the trunnion shaft to the neutral position when depression operation of the F or R pedals is not being performed, an ILM including a damper applying a resistance to movements of the F or R pedals, and the NRM disposed between a rear wheel and a fender of the working vehicle in side view.

    摘要翻译： 工作车辆包括HST，前进和后退踏板，制动踏板，与正向或反向（F或R）踏板的操作相联动地操作的中间连杆机构（ILM），接收来自ILM的操作的单个换档杆 并将HST的耳轴转动到前进驱动侧和反向驱动侧，中立返回机构（NRM）具有与耳轴一体旋转并形成弯曲表面部分的凸轮板，与之接触的滚子 所述弯曲表面部分，与包括所述辊的返回臂一体地构成的下回转臂以及沿着使所述耳轴转动到中立位置的方向起作用的第一弹簧，所述第一弹簧被锁定在所述下回转臂上， F踏板，当不执行F或R踏板的按压操作时，在其上锁住第二弹簧，所述第二弹簧沿着将耳轴转动到中立位置的方向作用，包括阻尼器 在侧视图中施加抵抗F或R踏板的动作以及设置在作业车辆的后轮与挡泥板之间的NRM。

    Hydrostatic transaxle and hydraulically driven vehicle
    5.
    发明授权
    Hydrostatic transaxle and hydraulically driven vehicle 失效
    静液压驱动桥和液压驱动车辆

    公开(公告)号：US08109355B2

    公开(公告)日：2012-02-07

    申请号：US12536192

    申请日：2009-08-05

    申请人： Koji Iwaki ,  Norihiro Ishii ,  Fumitoshi Ishino

    发明人： Koji Iwaki ,  Norihiro Ishii ,  Fumitoshi Ishino

    IPC分类号： B60K17/356

    CPC分类号： B60K17/356 ,  B60W2300/156 ,  B60W2510/20 ,  B60Y2200/223 ,  F16H61/40 ,  F16H61/427 ,  F16H61/456

    摘要： A hydraulically driven vehicle comprises: a first transaxle disposed at one of front and rear portions of the vehicle, wherein the first transaxle incorporates a first hydraulic motor for driving a first axle; a second transaxle disposed at the other of the rear or front portion of the vehicle, wherein the second transaxle incorporates a second hydraulic motor for driving a second axle; a hydraulic pump for supplying fluid to the first and second hydraulic motors; a mower; a duct for transferring grass mowed by the mower, wherein the first transaxle is disposed above the duct; and a vertical power train interposed between the first axle and an axial center shaft of a wheel driven by the first axle, wherein the power train is disposed on a lateral outside of the duct.

    摘要翻译： 液压驱动车辆包括：设置在车辆的前部和后部之一的第一变速驱动桥，其中第一变速驱动桥包括用于驱动第一轴的第一液压马达; 第二驱动桥，其布置在所述车辆的后部或前部的另一个处，其中所述第二变速驱动桥包括用于驱动第二轴的第二液压马达; 用于向第一和第二液压马达提供流体的液压泵; 割草机 用于传送由割草机割草的草的管道，其中所述第一变速驱动桥设置在所述管道上方; 以及插入在所述第一轴与由所述第一轴驱动的车轮的轴向中心轴之间的垂直动力传动系，其中所述动力传动系设置在所述管道的外侧。

    Fluid transmission with improved traction control
    7.
    发明授权
    Fluid transmission with improved traction control 有权
    具有改进的牵引力控制的流体传动

    公开(公告)号：US07628240B2

    公开(公告)日：2009-12-08

    申请号：US11277054

    申请日：2006-03-21

    申请人： Niall J. Caldwell

    发明人： Niall J. Caldwell

    IPC分类号： B60K17/356

    CPC分类号： B60K17/10 ,  B60K17/356 ,  B60K28/165 ,  B60W2720/28 ,  F16H61/40 ,  F16H61/456

    摘要： An electronic traction control system for a vehicle having multiple hydraulic driven wheels includes a plurality of digital displacement pumps, a plurality of drive systems having counterbalance valves and motors used to drive wheels, and electronic flow control valves used in association with each drive assembly. Additionally the system has a steering mechanism that is electrically connected to a digital sensor and a proportional sensor that sends signals to a system controller that operates the functioning of the digital displacement hydraulic pumps.

    摘要翻译： 一种用于具有多个液压驱动轮的车辆的电子牵引力控制系统包括多个数字位移泵，具有平衡阀的多个驱动系统和用于驱动车轮的电动机以及与每个驱动组件相关联使用的电子流量控制阀。 此外，系统具有电连接到数字传感器和比例传感器的转向机构，该比例传感器将信号发送到操作数字排量液压泵的功能的系统控制器。

    Rotary control valve for a hydrostatic transmission
    8.
    发明授权
    Rotary control valve for a hydrostatic transmission 失效
    用于静液压传动的旋转控制阀

    公开(公告)号：US07614227B2

    公开(公告)日：2009-11-10

    申请号：US11831058

    申请日：2007-07-31

    申请人： Robert Carlson ,  Thomas W. Roeber ,  Omid Ghayebi

    发明人： Robert Carlson ,  Thomas W. Roeber ,  Omid Ghayebi

    IPC分类号： F16H47/04 ,  F16H39/00

    CPC分类号： F16H61/40 ,  F16H61/4035 ,  F16H61/4061

    摘要： A rotary control valve for a vehicle hydrostatic transmission includes a hydraulic pump and a hydraulic motor. The valve is configured to control both a direction and a speed of the hydrostatic transmission. The rotary control valve includes a rotary valve plate configured to oscillate through a range of less than 180 degrees independently of the pump and the motor.

    摘要翻译： 用于车辆静液传动的旋转控制阀包括液压泵和液压马达。 阀被配置为控制静液压传动的方向和速度。 旋转控制阀包括旋转阀板，该旋转阀板被配置为独立于泵和马达而振荡在小于180度的范围内。

    Hydrostatic drive system
    9.
    发明授权
    Hydrostatic drive system 失效
    静液压驱动系统

    公开(公告)号：US07600377B2

    公开(公告)日：2009-10-13

    申请号：US11592014

    申请日：2006-11-02

    申请人： Marcus Dölger

    发明人： Marcus Dölger

    IPC分类号： F16H39/02 ,  E02F9/22

    CPC分类号： F16H61/40 ,  F16H61/4026 ,  F16H61/4061 ,  F16H61/4148

    摘要： A hydrostatic drive system has a pump (1) and at least one consumer (5) controlled by a control valve (4) that can be actuated by control signals. A precharge device (10) that generates a precharge pressure is located in a reservoir line (7) that leads from the control valve (4) to a reservoir (2). The precharge device can be pressurized as a function of the control signals of the control valve (4). To make possible a recharge during the deceleration of a consumer, the precharge device (10) can be pressurized in the direction of an elevation of the precharge pressure when there is a decreasing control signal of the control valve (4).

    摘要翻译： 静液压驱动系统具有泵（1）和至少一个由可由控制信号驱动的控制阀（4）控制的消耗器（5）。 产生预压力的预充电装置（10）位于从控制阀（4）引导到储液器（2）的储液管（7）中。 作为控制阀（4）的控制信号的函数，预充电装置可被加压。 为了在消费者减速期间进行再充电，当控制阀（4）的控制信号减小时，预充电装置（10）可以在预压力升高的方向上被加压。

    Hydraulic transaxle and hydraulically driven vehicle
    10.
    发明授权
    Hydraulic transaxle and hydraulically driven vehicle 有权
    液压传动桥和液压驱动车辆

    公开(公告)号：US07469537B2

    公开(公告)日：2008-12-30

    申请号：US11502545

    申请日：2006-08-11

    申请人： Michio Tsukamoto ,  Norihiro Ishii ,  Hideaki Okada

    发明人： Michio Tsukamoto ,  Norihiro Ishii ,  Hideaki Okada

    IPC分类号： F16D31/02

    CPC分类号： B60K17/105 ,  B60K17/342 ,  B60K17/356 ,  B60Y2200/223 ,  F16H61/40 ,  F16H61/4043 ,  F16H61/4069

    摘要： A hydraulic transaxle comprises: an axle; a hydraulic pump driven by a prime mover; a hydraulic motor fluidly connected to the hydraulic pump so as to drive the axle; a bypass fluid circuit bypassing between suction and delivery ports of the hydraulic motor; a bypass valve provided in the bypass fluid circuit; a bypass operation device for selectively opening or closing the bypass valve; and a reset mechanism for closing the opened bypass valve.

    摘要翻译： 液压驱动桥包括：轴; 由原动机驱动的液压泵; 与液压泵流体连接以驱动车轴的液压马达; 旁路流体回路绕过液压马达的吸入口和输送口; 设置在旁路流体回路中的旁通阀; 用于选择性地打开或关闭旁通阀的旁路操作装置; 以及用于关闭打开的旁通阀的复位机构。