Hydrostatic continuously variable transmission
    2.
    发明授权
    Hydrostatic continuously variable transmission 失效
    静液压无级变速器

    公开(公告)号:US4827721A

    公开(公告)日:1989-05-09

    申请号:US112329

    申请日:1987-10-22

    摘要: In a hydrostatic continuously variable transmission comprising a swashplate type hydraulic pump having a pump swashplate and annularly arranged pump plungers whose suction and discharge strokes are provided by the pump swashplate, a swashplate type hydraulic motor having a motor swashplate and annularly arranged motor plungers whose expansion and shrinkage strokes are provided by the motor swashplate, and a hydraulic closed circuit formed between the hydraulic pump and motor, the middle point of a discharge region of the hydraulic pump is angularly delayed at a given angle in a direction of rotation of the hydraulic pump relative to a tilting axis of the pump swashplate, and/or the middle, point of an expansion region of the hydraulic motor is angularly advanced at a given angle in a direction of rotation of the hydraulic motor relative to a tilting axis of the motor swashplate. Further, a suction region of the hydraulic pump is set at an angle larger than that of a discharge region thereof, and/or a shrinkage region of the hydraulic motor is set at an angle larger than that of an expansion region thereof.

    摘要翻译: 一种液压无级变速器,包括具有泵斜盘的斜盘式液压泵和环形布置的泵柱塞,其抽吸和排出行程由泵斜盘提供;斜盘式液压马达,其具有马达斜盘和环形排列的马达柱塞,其膨胀和 收缩行程由电动斜盘提供,液压泵与电动机之间形成液压闭合回路,液压泵排出区域的中点以液压泵相对转动方向的角度延迟给定角度 和/或液压马达的膨胀区域的中间点在液压马达相对于马达斜盘的倾斜轴的旋转方向上以给定的角度成角度地前进。 此外,液压泵的吸入区域被设定为大于其排出区域的角度,和/或液压马达的收缩区域被设定为大于其膨胀区域的角度。

    Hydrostatic continously variable transmission with adjustable clutch
valve
    5.
    发明授权
    Hydrostatic continously variable transmission with adjustable clutch valve 失效
    具有可调节离合器阀的静态可变变速器

    公开(公告)号:US5065578A

    公开(公告)日:1991-11-19

    申请号:US422807

    申请日:1989-10-17

    摘要: In a hydrostatic continuously variable transmission in which a clutch valve capable of operating between a clutch-on position for setting a hydraulic closed circuit between a hydraulic pump and a hydraulic motor to a hydraulic transmitting state and a clutch-off position for setting the hydraulic closed circuit to a hydraulic transmission cutting-off state is connected to the hydraulic closed circuit, a pressure bearing chamber for urging the clutch valve to the clutch-off position, and a pressure regulating spring for urging the valve to the clutch-on position are provided in the clutch valve, and a clutch controller for regulating the set load of the pressure regulating spring is connected to the pressure regulating spring. Thus, the degree of the hydraulic transmission between the pump and the motor can be controlled as desired without influence of the viscous change of a working oil. The clutch valve is disposed at one axial end of a transmission shaft.

    摘要翻译: 在静液压无级变速器中,其中能够在用于将液压泵和液压马达之间的液压闭合回路设定到液压传动状态的离合器接合位置和用于设定液压闭合的离合器关闭位置之间操作的离合器阀 连接到液压传动切断状态的电路连接到液压闭合回路,用于将离合器阀推动到离合器关闭位置的压力承受室,以及用于将阀推动到离合器接合位置的压力调节弹簧 在离合器阀中,并且用于调节压力调节弹簧的设定负载的离合器控制器连接到压力调节弹簧。 因此,可以根据需要控制泵和马达之间的液压传动的程度,而不受工作油的粘性变化的影响。 离合器阀设置在传动轴的一个轴向端。

    Swash plate type hydraulic system
    6.
    发明授权
    Swash plate type hydraulic system 失效
    斜盘式液压系统

    公开(公告)号:US4781022A

    公开(公告)日:1988-11-01

    申请号:US5043

    申请日:1987-01-20

    IPC分类号: F16H39/14 F16D33/00

    CPC分类号: F16H39/14

    摘要: In a swash plate type hydraulic system such as a hydraulic pump, a hydraulic motor of the like, a group of cylinder bores in which plungers engaging a swash plate are slidably received are annularly arranged in a cylinder block, and higher and lower pressure oil passages are concentrically provided in the cylinder block. Further, a group of distributor valves are provided in the cylinder block in a radially arranged configuration for controlling the connection and disconnection between the higher and lower pressure oil passages and the group of cylinder bores by radial reciprocating motion of the valves, and an eccentric wheel is provided eccentrically with respect to the center of rotation of the cylinder block to abut against the outer ends of the distributor valves so as to impart a reciprocating motion to each of the distributor valves. A shifting device is provided for changing the eccentric relationship between the eccentric wheel and the cylinder block.

    摘要翻译: 在诸如液压泵,液压马达等斜盘式液压系统中,可滑动地容纳有与斜板接合的柱塞的一组气缸孔环形地布置在气缸体中,以及较高和较低压力的油路 同心地设置在气缸体中。 此外,一组分配阀以径向布置的形式设置在气缸体中,用于通过阀的径向往复运动来控制高压油路和低压油路与一组缸孔之间的连接和断开,偏心轮 相对于气缸体的旋转中心偏心地设置以抵靠分配器阀的外端,以便向每个分配阀施加往复运动。 提供换档装置,用于改变偏心轮与气缸体之间的偏心关系。

    Transmission having a static, hydraulic continuously-variable-speed
transmission mechanism
    7.
    发明授权
    Transmission having a static, hydraulic continuously-variable-speed transmission mechanism 失效
    变速器具有静态液压连续变速传动机构

    公开(公告)号:US5584214A

    公开(公告)日:1996-12-17

    申请号:US325590

    申请日:1994-10-19

    IPC分类号: F16H39/14 F16H47/02

    摘要: A transmission with a static, hydraulic continuously-variable-speed transmission mechanism comprising a hydraulic circuit having a closed circuit, a hydraulic pump connected on the crankshaft of an engine, and a hydraulic motor having a motor output shaft coaxial with the axis of rotation of the hydraulic pump, and contained in a casing with its axis extended in parallel to that of the crankshaft. The static, hydraulic continuously-variable-speed transmission mechanism has a small construction and has an increased degree of freedom of selection of speed change ratio. An output shaft, i.e., the final output shaft of a transmission is supported for rotation on a casing with its axis extended in parallel to that of a static, hydraulic continuously-variable-speed transmission mechanism. A motor output shaft and the output shaft can be interlocked by a reduction mechanism.

    摘要翻译: 具有静态,液压连续变速传动机构的变速器,包括具有闭合回路的液压回路,连接在发动机曲轴上的液压泵以及具有与转轴轴线同轴的马达输出轴的液压马达 液压泵,并且容纳在壳体中,其轴线平行于曲轴的轴线延伸。 静液压连续变速传动机构结构小,变速比选择自由度更高。 输出轴,即变速器的最终输出轴被支撑以便在壳体上旋转,其轴线平行于静态液压无级变速传动机构的轴线延伸。 电动机输出轴和输出轴可通过减速机构互锁。