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    Fan Drive System
    3.
    发明申请
    Fan Drive System 审中-公开
    风扇驱动系统

    公开(公告)号：US20100303643A1

    公开(公告)日：2010-12-02

    申请号：US12438532

    申请日：2007-07-19

    申请人： Toyomi Kataoka ,  Junichi Fukushima ,  Kazuhiro Maruta ,  Naoki Ishizaki

    发明人： Toyomi Kataoka ,  Junichi Fukushima ,  Kazuhiro Maruta ,  Naoki Ishizaki

    IPC分类号： F04B49/00

    CPC分类号： F15B11/165 ,  E02F9/2203 ,  E02F9/2228 ,  E02F9/2232 ,  E02F9/225 ,  E02F9/2296 ,  F01P7/044 ,  F15B11/05 ,  F15B11/168 ,  F15B2211/20523 ,  F15B2211/20553 ,  F15B2211/40553 ,  F15B2211/6054 ,  F15B2211/6343 ,  F15B2211/654 ,  F15B2211/7058

    摘要： A fan drive system for driving an engine cooling fan mounted in a working machine is described. The fan drive system includes a variable displacement pump that supplies oil to an actuator and is also used as a hydraulic pump for the hydraulic motor that drives the cooling fan. A pump displacement of a variable displacement pump can be controlled in accordance with the load of the working machine, and when a load is not generated in the working machine, the pump displacement of the variable displacement pump can be controlled in accordance with a load pressure of a hydraulic motor which drives a cooling fan. Examples of such working machines include a forklift, a skid steer loader (SSL) and a crawler dump.

    摘要翻译： 描述了用于驱动安装在工作机中的发动机冷却风扇的风扇驱动系统。 风扇驱动系统包括可变排量泵，其向致动器供油，并且还用作用于驱动冷却风扇的液压马达的液压泵。 可以根据作业机械的负载来控制可变排量泵的泵排量，并且当在工作机械中不产生负载时，可以根据负载压力来控制可变排量泵的泵排量 驱动冷却风扇的液压马达。 这种工作机器的示例包括叉车，滑移装载机（SSL）和履带式倾卸装置。

    Device and method for continuously variable transmission of traveling vehicle
    5.
    发明授权
    Device and method for continuously variable transmission of traveling vehicle 失效
    行驶车辆无级变速传动装置及方法

    公开(公告)号：US07971434B2

    公开(公告)日：2011-07-05

    申请号：US11988902

    申请日：2006-07-04

    申请人： Naoki Ishizaki ,  Hikosaburo Hiraki ,  Koichiro Itou

    发明人： Naoki Ishizaki ,  Hikosaburo Hiraki ,  Koichiro Itou

    IPC分类号： F16H47/02 ,  E02F9/22

    CPC分类号： F16H61/44 ,  F16H47/02 ,  F16H61/462

    摘要： A variable capacity pump and two variable capacity motors are connected in a closed circuit. First to fourth drive gears are fitted to motor shafts of the variable capacity motors via clutches. A first driven gear, which meshes with the first and third drive gears, and a second driven gear which meshes with the second and fourth drive gears are fitted to an output shaft. Equivalent capacities of the variable capacity motors are made different. Control is exerted such that the capacities are decreased to zero in order of equivalent capacities. To decrease the capacity of each variable capacity motor, the gear change ratio of the variable capacity motor the capacity of which has decreased to zero is changed to decrease the equivalent capacity and, at the same time, the capacity is increased to maximum. This increases the gear change ratio for the continuously variable transmission and controls acceleration.

    摘要翻译： 可变容量泵和两个可变容量电机连接在闭路中。 第一至第四驱动齿轮通过离合器安装到可变容量电动机的电动机轴上。 与第一和第三驱动齿轮啮合的第一从动齿轮和与第二和第四驱动齿轮啮合的第二从动齿轮装配到输出轴。 变容量电机的等效容量是不同的。 施加控制，使得容量按照等效容量的顺序降低到零。 为了降低每个可变容量电动机的容量，其容量减小到零的变量电动机的变速比改变为降低等效容量，同时容量增加到最大。 这增加了无级变速器的变速比，并控制加速度。

    Speed-changing device
    6.
    发明授权
    Speed-changing device 有权
    变速装置

    公开(公告)号：US07448976B2

    公开(公告)日：2008-11-11

    申请号：US11961918

    申请日：2007-12-20

    申请人： Hikosaburo Hiraki ,  Takashi Kuse ,  Toshikazu Okada ,  Shigeru Yamamoto ,  Naoki Ishizaki

    发明人： Hikosaburo Hiraki ,  Takashi Kuse ,  Toshikazu Okada ,  Shigeru Yamamoto ,  Naoki Ishizaki

    IPC分类号： F16H3/72 ,  F16H48/30

    CPC分类号： F16H47/04 ,  F16H2037/0866 ,  F16H2037/088

    摘要： A transmission is provided which has a very compact system configuration and is capable of exerting high energy efficiency over all speed regions from a low speed region to a high speed region, while providing improved operability free from a torque shortage. To this end, the transmission has an input shaft, an intermediate output shaft, a planetary gear mechanism, a first pump-motor, and a second pump-motor connected to the first pump-motor, the input shaft being coupled to a first element of the planetary gear mechanism, the second pump-motor being coupled to a second element of the planetary gear mechanism, the intermediate output shaft being coupled to a third element of the planetary gear mechanism, and the transmission further comprising a switching mechanism for selectively coupling the first pump-motor to either the input shaft or the intermediate output shaft.

    摘要翻译： 提供了一种具有非常紧凑的系统配置并且能够在从低速区域到高速区域的所有速度区域施加高能量效率的传输，同时提供了没有扭矩不足的改进的可操作性。 为此，变速器具有输入轴，中间输出轴，行星齿轮机构，第一泵电动机和连接到第一泵电动机的第二泵电动机，输入轴与第一元件 所述第二泵电动机联接到所述行星齿轮机构的第二元件，所述中间输出轴联接到所述行星齿轮机构的第三元件，所述变速器还包括用于选择性地联接的切换机构 第一个泵马达到输入轴或中间输出轴。

    Hydromechanical transmission
    7.
    发明授权
    Hydromechanical transmission 失效
    液压机械传动

    公开(公告)号：US07070531B2

    公开(公告)日：2006-07-04

    申请号：US10836360

    申请日：2004-04-29

    申请人： Naoki Ishizaki

    发明人： Naoki Ishizaki

    IPC分类号： F16H47/04

    CPC分类号： F16H47/04 ,  F16H2037/044 ,  F16H2037/049 ,  F16H2037/0873 ,  F16H2047/045

    摘要： A hydromechanical transmission having a continuously variable transmission function and occupying a small area for installation is provided. For this purpose, the transmission includes a driving source (3), a planetary gear speed reducer (5) connected to the driving source, a variable displacement hydraulic pump (11), which is connected to the planetary gear speed reducer, and to which one part of an output force of the driving source is outputted, an output shaft (717), which is connected to the planetary gear speed reducer, and to which the other part of the output force of the driving source is outputted, a first and a second variable displacement hydraulic motors (31, 37) receiving pressure oil from the hydraulic pump and outputting a driving force to the output shaft, and a clutch (45) placed between the second hydraulic motor (37) and the output shaft.

    摘要翻译： 提供具有无级变速功能并且占用小面积的用于安装的液压机械变速器。 为此，变速器包括驱动源（3），连接到驱动源的行星齿轮减速器（5），连接到行星齿轮减速器的可变排量液压泵（11），并且其中 输出驱动源的输出力的一部分，与行星齿轮减速器连接并输出驱动源的输出力的另一部分的输出轴（717），第一和第二 从所述液压泵接收压力油并向所述输出轴输出驱动力的第二可变排量液压马达（31,37）以及设置在所述第二液压马达（37）和所述输出轴之间的离合器（45）。

    Operation lever device
    8.
    发明授权
    Operation lever device 失效

    公开(公告)号：US06655229B2

    公开(公告)日：2003-12-02

    申请号：US09754215

    申请日：2001-01-05

    申请人： Yuuichi Yamamoto ,  Yasuhiro Satou ,  Shuuji Hori ,  Naoki Ishizaki

    发明人： Yuuichi Yamamoto ,  Yasuhiro Satou ,  Shuuji Hori ,  Naoki Ishizaki

    IPC分类号： F15B1108

    CPC分类号： F15B13/0422 ,  G05G9/047 ,  G05G2009/04781 ,  Y10T74/20012 ,  Y10T74/20201 ,  Y10T74/20396 ,  Y10T137/87072

    摘要： It is designed that an oil pressure signal can be output by operating an operation lever in a twisting direction; a structure can be made simple and its assembly and adjustment are easy; an operation force can be reduced; and a layout is not restricted. It is also designed that when the operation lever is left free after it is twisted, it returns smoothly to the original neutral position. When the operation lever is twisted about the lever axis, the shaft supported by bearings is twisted. The twist of the shaft is converted into the movement in a direction to move the pistons by first and second levers, and the pistons are moved. When the pistons are moved, the oil pressure signal is output from the discharge ports. A disk plate is separated into a first disk plate to which the root of the operation lever is attached and a second disk plate which is tiltably supported by a tilting fulcrum. And, the first disk plate is independent of the second disk plate and twisted about the lever axis of the operation lever.

    Pressure compensation valve
    9.
    发明授权
    Pressure compensation valve 失效
    压力补偿阀

    公开(公告)号：US5735311A

    公开(公告)日：1998-04-07

    申请号：US750876

    申请日：1996-12-20

    申请人： Naoki Ishizaki ,  Mitsumasa Akashi

    发明人： Naoki Ishizaki ,  Mitsumasa Akashi

    IPC分类号： F15B11/00 ,  F15B11/05 ,  F15B13/04 ,  G05D16/10

    CPC分类号： F15B13/0417 ,  G05D16/10 ,  Y10T137/87169

    摘要： A pressure compensation valve comprises a check valve portion having an inlet port that is connected to a discharge path of a hydraulic pump, an outlet port that is connected to an inlet side of a directional control valve, and a valve for controlling an area of opening between both ports. A pressure reduction valve portion has a spool that defines at its both sides a first pressure chamber and a second pressure chamber, respectively, and is adapted to be slidable to allow the valve to be thrusted in a first direction in which the area of opening is increased under a self-load pressure applied to the first pressure chamber and to be slidable to allow the valve to be thrusted in a second direction in which the area of opening is decreased under a pressure within the second pressure chamber. An internal passage is formed inside of the spool and is adapted to supply a discharge pressure fluid of the hydraulic pump to the second pressure chamber when the spool has been slid to assume not less than a predetermined displacement made in the first direction.

    摘要翻译： PCT No.PCT / JP95 / 01377 Sec。 371日期1996年12月20日第 102（e）日期1996年12月20日PCT提交1995年7月11日PCT公布。 出版物WO96 / 01951 日期1996年1月25日压力补偿阀包括止回阀部分，其具有连接到液压泵的排出路径的入口端口，连接到方向控制阀的入口侧的出口端口和用于 控制两个端口之间的打开区域。 减压阀部分具有在其两侧分别限定第一压力室和第二压力室的阀芯，并且其适于可滑动以允许阀沿第一方向被推出，其中开口面积为 在施加到第一压力室的自负载压力下增加，并且可滑动以允许阀在第二压力室内的压力下沿开口面积减小的第二方向被推出。 在阀芯内部形成内部通道，并且当阀芯已经滑动到不小于沿第一方向制成的预定位移时，将液压泵的排出压力流体提供给第二压力室。

    Hydraulic valve assembly
    10.
    发明授权
    Hydraulic valve assembly 失效
    液压阀总成

    公开(公告)号：US5372060A

    公开(公告)日：1994-12-13

    申请号：US44205

    申请日：1993-04-08

    申请人： Jun Maruyama ,  Koji Yamashita ,  Naoki Ishizaki

    发明人： Jun Maruyama ,  Koji Yamashita ,  Naoki Ishizaki

    IPC分类号： F16K11/07 ,  F15B13/02 ,  F16K27/04 ,  F15B13/043

    CPC分类号： F15B13/02 ,  Y10T137/87201 ,  Y10T137/87209

    摘要： A hydraulic valve assembly comprises a valve body defining first and second valve receptacle bores, a fluid pump, a first fluid passage communicated with the fluid pump, a second fluid passage communicated with a hydraulic load, and a third fluid passage communicated with a fluid reservoir. A first valve sub-assembly including a sleeve enclosing a first valve mechanism therein is disposed within the first valve receptacle body for selectively permitting and blocking introduction of the pressurized working fluid. Also, a second valve sub-assembly including a sleeve enclosing a second valve mechanism therein is disposed within the second valve receptacle bore for selectively establishing and blocking fluid communication between the second and third fluid passage means. A third valve assembly is provided in the valve body for selectively establishing and blocking fluid communication between the load side of the first valve sub-assembly and the second fluid passage for supplying the pressurized working fluid to the hydraulic load. A control valve assembly is provided in the valve body for generating a control pressure for controlling position of the first and second valve subassemblies.

    摘要翻译： 液压阀组件包括限定第一和第二阀容纳孔的阀体，流体泵，与流体泵连通的第一流体通道，与液压负载连通的第二流体通道，以及与流体储存器连通的第三流体通道 。 包括其中包围第一阀机构的套筒的第一阀子组件设置在第一阀座体内，用于选择性地允许和阻止加压工作流体的引入。 此外，包括在其中封闭第二阀机构的套筒的第二阀子组件设置在第二阀容纳孔内，用于选择性地建立和阻止第二和第三流体通道装置之间的流体连通。 第三阀组件设置在阀体中，用于选择性地建立和阻断第一阀子组件的负载侧和第二流体通道之间的流体连通，以将加压工作流体供应到液压负载。 控制阀组件设置在阀体中，用于产生用于控制第一和第二阀组件的位置的控制压力。