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    Work vehicle
    1.
    发明授权
    Work vehicle 有权

    公开(公告)号：US11408505B2

    公开(公告)日：2022-08-09

    申请号：US17306255

    申请日：2021-05-03

    Applicant: YANMAR POWER TECHNOLOGY CO., LTD.

    Inventor： Taihei Daiyakuji ,  Hitoshi Nomura

    IPC: F16H61/438 ,  F16H61/435 ,  F16H61/439 ,  F16H47/02 ,  F16H61/425

    Abstract: A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission, and an electric cylinder, and a power transmission mechanism. The hydraulic continuously variable transmission changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder and transmitted, the power transmission mechanism changes the angle of the movable swash plate of the hydraulic continuously variable transmission.

    WORK VEHICLE
    2.
    发明申请
    WORK VEHICLE 有权

    公开(公告)号：US20210254710A1

    公开(公告)日：2021-08-19

    申请号：US17306255

    申请日：2021-05-03

    Applicant: YANMAR POWER TECHNOLOGY CO., LTD.

    Inventor： Taihei DAIYAKUJI ,  Hitoshi NOMURA

    IPC: F16H61/438 ,  F16H61/435 ,  F16H61/439 ,  F16H47/02 ,  F16H61/425

    Abstract: A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission, and an electric cylinder, and a power transmission mechanism. The hydraulic continuously variable transmission changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder and transmitted, the power transmission mechanism changes the angle of the movable swash plate of the hydraulic continuously variable transmission.

    Automotive drive control for hydrostatic transmission
    5.
    发明授权
    Automotive drive control for hydrostatic transmission 失效
    用于静液压传动的汽车驱动控制

    公开(公告)号：US5503534A

    公开(公告)日：1996-04-02

    申请号：US405130

    申请日：1995-03-16

    Applicant: Karl-Thomas Rhody

    Inventor： Karl-Thomas Rhody

    IPC: F04B49/08 ,  F16H61/42 ,  F16H61/433 ,  F16H61/438 ,  F16H61/46 ,  F16H61/465 ,  F04B1/26

    CPC classification number: F16H61/465 ,  F04B49/08 ,  F16H61/433 ,  F16H61/438 ,  F16H61/46 ,  F04B2205/062 ,  F04B2207/0441 ,  F16H2059/366

    Abstract: A control (27)is disclosed which may be used as an automotive drive control for a variable displacement hydrostatic pump (11). The pump displacement is controlled by servos (37, 39) by control pressure from a charge pump (21). As a pedal (P) of a vehicle engine (E) is depressed, an increasing pressure differential across a fixed orifice (79) moves a control spool (73) to port control fluid to a first servo port (A). If engine speed becomes excessive, or in response to an external pressure signal (121) representing another vehicle condition, the control spool (73) is moved to a position (FIG. 5 )in which control pressure is ported to a second servo port (B), thus positively reducing the displacement of the pump (11).

    Abstract translation: 公开了可用作可变排量静液压泵（11）的汽车驱动控制的控制器（27）。 泵的位移由来自电荷泵（21）的控制压力由伺服（37,39）控制。 当车辆发动机（E）的踏板（P）被压下时，跨越固定孔（79）的增加的压力差将控制阀芯（73）移动到端口控制流体到第一伺服端口（A）。 如果发动机转速过大或响应于表示其他车辆状态的外部压力信号（121），则控制阀芯73移动到控制压力被移动到第二伺服端口的位置（图5） B），从而积极地减小泵（11）的位移。

    Control for hydrostatic transmission
    6.
    发明授权
    Control for hydrostatic transmission 失效
    控制水文传输

    公开(公告)号：US3691863A

    公开(公告)日：1972-09-19

    申请号：US3691863D

    申请日：1971-04-28

    Applicant: TOWMOTOR CORP

    Inventor： SHAFFER WALTER M

    IPC: B60K26/00 ,  F16H61/42 ,  F16H61/437 ,  F16H61/438 ,  G05G11/00 ,  G05G9/00

    CPC classification number: B60K26/00 ,  F16H61/42 ,  F16H61/437 ,  F16H61/438 ,  G05G11/00 ,  Y10T74/20189 ,  Y10T477/68

    Abstract: A control arrangement particularly for the hydrostatic transmission of a lift truck or the like to provide direction control, pump displacement control, throttle control, as well as special displacement control such as inching or creeping with high engine speeds as are required for lifting, etc. The arrangement includes a reciprocably movable pump displacement control rod coupled to a transmission control lever rotatable from a neutral position to forward and reverse pump displacement positions responsive to translation of the rod in opposite directions. Forward and reverse control linkage means are coupled to the rod by means of spring loaded sliders preloaded to a force above that required for the rod to move the transmission control lever through its full travel in both the forward and reverse directions in response to reciprocal rod movement effected by the control linkage means. A throttle control linkage is operably associated with the forward and reverse control linkage means to open the throttle in accordance with the extent of actuation of the latter control linkage means in either the forward or reverse direction. In addition, override control linkage means are coupled to the rod to override the loading force of the sliders and cause the rod to move the transmission control lever towards its neutral position irrespective of actuation of the forward and reverse control linkage means.

    Abstract translation: 特别是用于提升车辆等的静液压传动的控制装置，以提供方向控制，泵排量控制，节气门控制，以及特殊的位移控制，例如起重等等的高发动机转速的微动或爬行等。 该装置包括可往复移动的泵排量控制杆，其联接到可从中立位置旋转的变速器控制杆，并且响应于杆在相反方向的平移而向前和向后反向泵位移位置。 前进和后退控制联动装置通过弹簧加载的滑块联接到杆上，弹簧加载的滑块预先加载到杆所需的力以响应于往复杆运动而使传动控制杆沿前后方向的全部行程移动 由控制联动装置实现。 节气门控制联动装置与前进和后退控制联动装置可操作地相关联，以根据后一个控制联动装置在正向或反向方向的致动程度来打开节气门。 此外，超控控制联动装置联接到杆以超越滑块的加载力，并且使得杆将变速器控制杆移向其中立位置，而与前进和后退控制联动装置的致动无关。

    TRANSAXLE
    8.
    发明申请
    TRANSAXLE 有权

    公开(公告)号：US20220095541A1

    公开(公告)日：2022-03-31

    申请号：US17643564

    申请日：2021-12-09

    Applicant: Kanzaki Kokyukoki Mfg. Co., Ltd.

    Inventor： Mai TERADA ,  Koji KIYOOKA

    IPC: A01D69/03 ,  F15B15/02 ,  F16H39/12 ,  F16H61/427 ,  F16H61/437 ,  F16H61/438 ,  F16H61/439 ,  F16H63/34

    Abstract: A transaxle with a brake of the present invention includes the braking device comprising a plurality of brake discs, fixing plates, and a brake operating member, wherein the brake discs have an inner gear tooth portion that can be fitted to an outer gear tooth portion of an output gear of the motor shaft so as not to rotate relative to the outer gear tooth portion and is slidably fixed in the axial direction of the motor shaft, wherein the fixing plates are fixed to the transaxle casing so as not to rotate relative to each other and are slidably fixed in the axial direction of the motor shaft, and wherein the brake operating member provides a predetermined gap between the fixing plates and the brake discs when the brake discs are not pressed.

    Hydraulic mechanical transmission with torque boost
    9.
    发明授权
    Hydraulic mechanical transmission with torque boost 有权

    公开(公告)号：US10982763B2

    公开(公告)日：2021-04-20

    申请号：US15680898

    申请日：2017-08-18

    Applicant: Eaton Corporation

    Inventor： QingHui Yuan

    IPC: F16H61/438 ,  F16H39/10 ,  F16H39/12 ,  F16H47/07 ,  F16H61/00 ,  F16H47/02 ,  F16H47/04 ,  F16H37/08

    Abstract: A hydraulic mechanical transmission includes a first hydraulic unit having a first shaft and a second hydraulic unit having a second shaft. The second hydraulic unit is connected in hydraulic fluid communication with the first hydraulic unit by high and low pressure lines. A valve having a variable orifice is positioned along the high and low pressure lines, and at least one of the first and second hydraulic units has a variable displacement. A mechanical torque transfer arrangement transfers torque between the first shaft of the first hydraulic unit and a rotatable component of the second hydraulic unit. In use, one of the first and second hydraulic units operates as a hydraulic pump and the other of the first and second hydraulic units operates as a hydraulic motor.

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