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173 条记录 (耗时 0.021 秒)

    Hydraulic hybrid powertrain system
    11.
    发明授权
    Hydraulic hybrid powertrain system 有权
    液压混合动力总成系统

    公开(公告)号：US07281376B2

    公开(公告)日：2007-10-16

    申请号：US11359728

    申请日：2006-02-22

    申请人： James A. O'Brien, II

    发明人： James A. O'Brien, II

    IPC分类号： F15B11/02 ,  F16H59/18 ,  E02F9/22

    CPC分类号： B60K6/12 ,  B60W30/18127 ,  B60W2540/12 ,  F04C2/102 ,  F04C2/18 ,  F04C11/001 ,  F04C14/185 ,  F16H61/4061 ,  F16H61/4157 ,  Y02T10/6208

    摘要： A hydraulic hybrid powertrain system includes a power plant generating a high pressure fluid at an output, at least one drive motor responsive to the high pressure fluid for generating rotary motion at an output, and a mode selection device connected to the power plant output and the drive motor for selecting a mode of operation from a plurality of drive motor modes of operation including at least two of a drive mode, a neutral mode, a reverse mode and a park mode. The system includes a control device connected to the power plant and the drive motor for controlling operation of the drive motor in the plurality of modes of operation, a selectively actuated brake device for interrupting high pressure fluid flow to the drive motor, and a check valve bridge circuit for connecting the drive motor to a low pressure fluid source when the brake device is actuated.

    摘要翻译： 液压混合动力系统包括在输出端产生高压流体的动力装置，响应于高压流体的至少一个驱动马达，用于在输出处产生旋转运动;以及模式选择装置，连接到发电厂输出和 驱动电动机，用于从包括驱动模式，中立模式，反转模式和停放模式中的至少两个的多个驱动电动机模式操作中选择操作模式。 该系统包括连接到发电厂的控制装置和用于控制多个操作模式中的驱动电动机的操作的驱动电动机，用于中断向驱动电动机的高压流体流动的选择性致动的制动装置，以及止回阀 桥接电路，用于在制动装置致动时将驱动马达连接到低压流体源。

    Speed changing device for hydraulic driving apparatus and speed change control method thereof
    12.
    发明授权
    Speed changing device for hydraulic driving apparatus and speed change control method thereof 失效
    液压驱动装置用变速装置及其变速控制方法

    公开(公告)号：US06182448B2

    公开(公告)日：2001-02-06

    申请号：US08793959

    申请日：1997-03-07

    申请人： Yasunori Ohkura ,  Hikosaburo Hiraki ,  Noboru Kanayama ,  Ryutaro Makida

    发明人： Yasunori Ohkura ,  Hikosaburo Hiraki ,  Noboru Kanayama ,  Ryutaro Makida

    IPC分类号： F16D3102

    CPC分类号： F16H61/4148 ,  F16H61/4026 ,  F16H61/4061 ,  F16H61/423 ,  F16H61/433 ,  F16H61/46 ,  F16H61/47 ,  F16H2059/186

    摘要： The present invention relates to a speed changing device for a hydraulic driving apparatus and a speed change control method thereof, which provide excellent controllability, traveling efficiency, and reliability without occurrence of cavitation. To this end, the device comprises a shifter selected position sensor (63a) for detecting a shift lever change, a motor rotational speed sensor (52) for detecting a rotational speed of a hydraulic motor (50), and a control device (60); and the control device (60) judges and controls either a powering control or a brake control, based on the change of the shift lever selection and on the comparison of the detected motor rotational speed with a memorized motor rotational speed. In addition, a two-stage back pressure valve (23) can be provided between a directional control valve (21) and an oil tank.

    摘要翻译： 本发明涉及一种用于液压驱动装置的变速装置及其变速控制方法，其提供优异的可控制性，行驶效率和可靠性而不会发生气蚀。 为此，该装置包括用于检测换档杆变化的换档器选择位置传感器（63a），用于检测液压马达（50）的转速的马达转速传感器（52）和控制装置（60） ; 并且控制装置（60）基于变速杆选择的变化以及检测到的电动机转速与存储的电动机转速的比较来判断和控制动力控制或制动控制。 此外，可以在方向控制阀（21）和油箱之间设置两级背压阀（23）。

    Backpressure control circuit for hydraulic drive device
    13.
    发明授权
    Backpressure control circuit for hydraulic drive device 失效
    液压驱动装置背压控制电路

    公开(公告)号：US6112521A

    公开(公告)日：2000-09-05

    申请号：US194334

    申请日：1998-11-24

    申请人： Seita Hayashi ,  Sadao Nunotani ,  Hideki Kado

    发明人： Seita Hayashi ,  Sadao Nunotani ,  Hideki Kado

    IPC分类号： E02F9/12 ,  E02F9/22 ,  F15B11/044 ,  F16H61/40 ,  F16H61/4061 ,  F16D31/02 ,  F15B11/08

    CPC分类号： F16H61/4061 ,  E02F9/128 ,  E02F9/2253 ,  E02F9/226 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/0445 ,  F16H61/40 ,  F16H61/4052 ,  F16H61/4069 ,  F16H61/4148 ,  F16H61/4157 ,  F16H61/4183 ,  F15B2211/20546 ,  F15B2211/30525 ,  F15B2211/329 ,  F15B2211/50518 ,  F15B2211/50527 ,  F15B2211/5156 ,  F15B2211/528 ,  F15B2211/555 ,  F15B2211/6051 ,  F15B2211/6058 ,  F15B2211/6355 ,  F15B2211/6653 ,  F15B2211/7058 ,  F15B2211/8609

    摘要： The present invention relates to a backpressure control circuit for a hydraulic drive device, which reduces the loss in drive power and which can suppress cavitation. Thus, the backpressure control circuit for hydraulic drive devices is a hydraulic drive circuit: for supplying to a hydraulic motor pressurized oil discharged from a hydraulic pump through a direction changeover valve, which is switched upon receipt of a pilot pressure; and for permitting at the time of braking by the hydraulic motor, a throttle valve to throttle return oil from the hydraulic motor and oil discharged from the hydraulic pump to generate a backpressure to supply pressurized oil to the hydraulic motor via a check valve for prevention of cavitation. The backpressure control circuit includes a pilot valve (60) for taking a pressure on a drive side of the hydraulic motor (24) as a pilot pressure upon receipt of a signal from an operating lever (39), and a variable throttle valve (80) for changing a backpressure to a low pressure or to a high pressure upon receipt of a pilot pressure from the pilot valve (60).

    摘要翻译： PCT No.PCT / JP97 / 01734 Sec。 371日期：1998年11月24日 102（e）1998年11月24日PCT PCT 1997年5月23日PCT公布。 第WO97 / 45659号公报 日期1997年12月4日本发明涉及一种用于液压驱动装置的背压控制电路，其减少驱动功率的损失并且可以抑制空化。 因此，用于液压驱动装置的背压控制电路是液压驱动电路，用于向通过方向切换阀从液压泵排出的压力油供给液压驱动电路，该方向切换阀在接收到先导压力时被切换; 并且为了在液压马达制动时允许节流阀来节流来自液压马达的回油和从液压泵排出的油产生背压，以通过止回阀向液压马达提供加压油，以防止 气蚀。 背压控制电路包括：先导阀（60），其在接收到来自操作杆（39）的信号时，作为先导压力，在液压马达（24）的驱动侧上施加压力，以及可变节流阀（80） ），用于在从先导阀（60）接收到先导压力时将背压改变为低压或高压。

    Hydrostatic transmissions
    16.
    发明授权
    Hydrostatic transmissions 失效
    静液压传动

    公开(公告)号：US5137100A

    公开(公告)日：1992-08-11

    申请号：US642218

    申请日：1991-01-16

    申请人： Graham Scott ,  Graham J. Toogood

    发明人： Graham Scott ,  Graham J. Toogood

    IPC分类号： B60K17/10 ,  B62D11/18 ,  B62D51/06 ,  F16H61/40 ,  F16H61/4061

    CPC分类号： B62D11/18 ,  B60K17/10 ,  B62D51/06 ,  F16H61/40 ,  F16H61/4061 ,  Y10S56/11

    摘要： A hydrostatic transmission for a vehicle, such as a commercial walk-behind mower, comprises a fixed displacement pump, first and second reversible hydraulic motors for driving first and second ground engageable wheels, respectively, of the vehicle, and first and second spool valves for controlling hydraulic fluid flow from the fixed displacement hydraulic pump to the first and second hydraulic motors, respectively. The transmission may have a further fixed displacement hydraulic pump arranged in tandem with the first mentioned pump, a fluid pressure operated device and a third spool valve movable between a first position in which hydraulic fluid from the further pump is supplied to the pressure operated device and a second position in which hydraulic fluid from the further pump is supplied to the first and second spool valves to supplement hydraulic fluid from the first mentioned hydraulic pump.

    摘要翻译： 用于诸如商业步行式割草机的车辆的静液压变速器包括固定排量泵，分别用于驱动车辆的第一和第二接地可接合车轮的第一和第二可逆液压马达，以及用于 控制从固定排量液压泵到第一和第二液压马达的液压流体流量。 所述变速器可以具有与所述第一提及的泵，流体压力操作装置和第三滑阀一起配置的另外的固定排量液压泵，所述第三滑阀可在第一位置和第二位置之间移动，在第一位置，来自所述另一泵的液压流体供应到所述压力操作装置， 第二位置，其中来自所述另外的泵的液压流体被供应到所述第一和第二滑阀以补充来自所述第一液压泵的液压流体。

    Method of controlling swing motion of a revolving superstructure and hydraulic control system for carrying out same
    18.
    发明授权
    Method of controlling swing motion of a revolving superstructure and hydraulic control system for carrying out same 失效
    控制旋转上层建筑和液压控制系统的摆动运动的方法

    公开(公告)号：US5063742A

    公开(公告)日：1991-11-12

    申请号：US385197

    申请日：1989-07-26

    申请人： Hideaki Yoshimatsu

    发明人： Hideaki Yoshimatsu

    IPC分类号： E02F9/12 ,  E02F9/22 ,  F15B11/044

    CPC分类号： E02F9/123 ,  E02F9/128 ,  E02F9/2285 ,  F15B11/0445 ,  F15B2211/30505 ,  F15B2211/3056 ,  F15B2211/3116 ,  F15B2211/3144 ,  F15B2211/329 ,  F15B2211/40507 ,  F15B2211/40584 ,  F15B2211/455 ,  F15B2211/473 ,  F15B2211/50518 ,  F15B2211/50536 ,  F15B2211/575 ,  F15B2211/6355 ,  F15B2211/7058 ,  F16H61/4061

    摘要： A method of controlling the slewing of a revolving superstructure of a hydraulic backhoe includes setting a swing mode selector valve in a driving position to supply fluid discharged from a pump through a supply-and-discharge line to a hydraulic motor to drive the hydraulic motor for a driving operation, setting one of a pair of relief valves provided between the swing mode selector valve and the hydraulic motor, associated with the supply side of the hydraulic motor for a set relief pressure higher than the set relief pressure of a main relief valve for limiting the pressure in supply-and-discharge lines to the set relief pressure of the main relief valve while the hydraulic motor is operating in a driving mode, and setting the other relief valve associated with the discharge side of the hydraulic motor for a set relief pressure lower than the set relief pressure of the main relief valve to limit the pressure in the supply-and-discharge line associated with the discharge side of the hydraulic motor to the set relief pressure of the other relief valve while the hydraulic motor is operating in a braking mode. The method brakes the slewing mechanism smoothly to prevent the rapid abrasion of the braking surfaces of the components of the slewing mechanism.

    摘要翻译： 一种控制液压反铲的旋转上层结构的回转的方法包括将摆动模式切换阀设置在驱动位置，以将通过供给排出管从泵排出的流体供给到液压马达，以驱动液压马达 驱动操作，设置在与所述液压马达的供给侧相关联的所述摆动模式切换阀和所述液压马达之间设置的一对减压阀中的一个，所述安全阀与所述液压马达的供给侧相比具有高于主溢流阀的设定的释放压力的设定的释放压力， 在液压马达处于运行模式的同时，将排放管线中的压力限制在主溢流阀的设定的释放压力上，并将与液压马达的排出侧相关联的另一个溢流阀设定为设定浮力 压力低于主安全阀的设定释放压力，以限制与排放侧相关的供排管线中的压力 当液压马达在制动模式下运行时，液压马达达到另一安全阀的设定释放压力。 该方法平稳地制动回转机构，以防止回转机构的部件的制动表面的快速磨损。

    Fluid circuit for operating a bidirectional hydraulic motor with a reduced shock
    19.
    发明授权
    Fluid circuit for operating a bidirectional hydraulic motor with a reduced shock 失效
    用于操作双向液压马达减震的流体回路

    公开(公告)号：US4628690A

    公开(公告)日：1986-12-16

    申请号：US645730

    申请日：1984-08-30

    申请人： Mitsuru Arai ,  Hideyori Sato ,  Shoichiro Inatomi

    发明人： Mitsuru Arai ,  Hideyori Sato ,  Shoichiro Inatomi

    IPC分类号： E02F9/22 ,  E02F9/12 ,  F15B11/00 ,  F16D31/02

    CPC分类号： F16H61/4061 ,  E02F9/123 ,  E02F9/128 ,  F16H61/40 ,  F16H61/4043 ,  F16H61/4148

    摘要： A hydraulic circuit is disclosed for driving a bidirectional hydraulic motor from a pump via a hand operated directional control valve, as for propelling an earthmover or actuating an implement assembly thereon. For mitigating an abrupt pressure rise as when the motor is set into or out of rotation, the circuit has a pair of oppositely directed dual pressure relief valves connected in parallel with each other between a pair of main lines extending between motor and directional control valve. Each dual pressure relief valve is normally conditioned to pass at a predetermined lower pressure the pressurized fluid from one of the main lines and to pass at a predetermined higher pressure the pressurized fluid from the other main line. When pilot operated from a timing valve responsive to a pressure differential between the main lines, that one of the relief valves which has been bleeding off the pressurized fluid at the low pressure is closed, with the result that the pressurized fluid is then released at the high pressure through the other relief valve, thereby causing two stepwise pressure rises for the reduction of a shock. The invention proposes the provision of a variable resistor between the timing valve and each main line for variably delaying the pilot actuation of the relief valves by the timing valve.

    摘要翻译： 公开了一种用于通过手动方向控制阀从泵驱动双向液压马达的液压回路，用于推动推土或在其上致动工具组件。 为了减轻与电动机进入或退出旋转之间的突然的压力升高，电路具有一对相反方向的双重压力释放阀，它们彼此并联连接在电动机和方向控制阀之间延伸的一对主线之间。 每个双压力释放阀通常被调节以使预定的较低压力从主线之一通过加压流体，并且以预定的较高压力从另一个主管路通过加压流体。 当导向器响应于主管之间的压力差从定时阀操作时，已经将处于低压下的加压流体渗出的溢流阀中的一个被关闭，结果是加压流体然后在 高压通过另一个安全阀，从而导致两个逐步的压力升高以减少冲击。 本发明提出在定时阀和每个主管线之间设置可变电阻器，用于通过定时阀可变地延迟安全阀的先导操作。

    Drive-transmitting mechanisms
    20.
    发明授权
    Drive-transmitting mechanisms 失效
    驱动传递机制

    公开(公告)号：US4084451A

    公开(公告)日：1978-04-18

    申请号：US748890

    申请日：1976-12-09

    申请人： John Lionel Raymond Ward

    发明人： John Lionel Raymond Ward

    IPC分类号： F16H47/04 ,  B60K41/04 ,  F16H37/06

    CPC分类号： F16H47/04 ,  F16H2037/101 ,  F16H61/4061 ,  Y10T477/637 ,  Y10T74/19084

    摘要： A drive-transmitting arrangement for use in a motor vehicle, fork-lift truck or industrial machinery includes a differential or epicyclic gear assembly having an input member and two output members. One of the output members is connected, directly or indirectly, to the operating element of a hydraulic pump so as to drive the pump and the outlet line of the hydraulic pump contains a control valve which may be responsive to the parameters of an engine connected to the input member of the gear assembly. Adjustment of the setting of the valve means varies the resistance to movement of the pump operating element so as to vary the ratio of the gear assembly.

    摘要翻译： 用于机动车辆，叉车或工业机械的传动装置包括具有输入构件和两个输出构件的差速器或行星齿轮组件。 输出构件中的一个直接或间接地连接到液压泵的操作元件，以便驱动泵，并且液压泵的出口管线包含控制阀，该控制阀可以响应于连接到 齿轮组件的输入构件。 调节阀装置的设置改变了泵操作元件的运动阻力，以便改变齿轮组件的比例。