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公开(公告)号：US20200332871A1
公开(公告)日：2020-10-22
申请号：US16867943
申请日：2020-05-06
发明人： Norman Ian Mathers
摘要： An example includes a hydraulically controllable coupling to couple a rotating input and to an output to rotate, or to decouple the input and the output, with coupling and decoupling modes selected by switching a hydraulic device such as a vane pump between a pumping mode and a mode in which it does not pump. In an example, the system cooperates with a transmission to increase the number of possible gear ratios in some examples.
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公开(公告)号：US20170306937A1
公开(公告)日：2017-10-26
申请号：US15482862
申请日：2017-04-10
发明人： Todd Allen Link
CPC分类号： F04B1/2085 , F04B1/2035 , F04B1/2078 , F16H39/04
摘要： An axial piston pump including a housing, a cylinder block, and a swash block. The cylinder block is rotatable within the housing about a vertical axis and includes an array of openings in the cylinder block distributed about the vertical axis and an array of pistons reciprocatably movable within the respective openings. The swash block is rotatable about an axis of rotation that is transverse to the vertical axis, and the degree of rotation is configured to control the extent of reciprocation of the pistons as the cylinder block rotates. The swash block has arc shape conical bearing surfaces tilted relative to the axis of rotation that are configured to guide movement of the swash block rotationally about the axis of rotation and prevent movement of the swash block axially along the axis of rotation.
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公开(公告)号：US09394926B1
公开(公告)日：2016-07-19
申请号：US14839793
申请日：2015-08-28
申请人： Kan Cui , Margaret C. Liu , Samuel K. Liu
发明人： Kan Cui , Margaret C. Liu , Samuel K. Liu
CPC分类号： F15B15/068 , F16H2025/2053
摘要： The torque converter includes an elongate housing having a main section and a collar section. A piston assembly is reciprocable inside the main section. A plurality of elongate helical bolts with outer helix extends axially from one side of a piston. The opposite side of the piston is entirely exposed to hydraulic forces to maximize potential work thereon. The helical bolts are mated with a rotator in a helical rotation assembly, converting linear motion into rotation, each mated pair generating a given torque. A torque accumulator combines the given torque to generate total output torque greater than the given torque. One or more output endcaps can be provided on the ends of the housing to produce work from the greater output torque.
摘要翻译： 变矩器包括具有主部分和套环部分的细长壳体。 活塞组件可在主部分内往复运动。 具有外螺旋的多个细长螺旋螺栓从活塞的一侧轴向延伸。 活塞的相对侧完全暴露于液压力以最大程度地提高其上的潜在作用。 螺旋螺栓与螺旋旋转组件中的旋转器配合，将线性运动转换成旋转，每对配对产生给定的扭矩。 扭矩储能器组合给定的扭矩以产生大于给定扭矩的总输出扭矩。 一个或多个输出端盖可以设置在壳体的端部上，以从更大的输出转矩产生工作。
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公开(公告)号：US20150135700A1
公开(公告)日：2015-05-21
申请号：US14086503
申请日：2013-11-21
CPC分类号： F16H61/4061
摘要： This invention consists of the addition of a novel clutch arrangement which facilitates speed changing gears on both the output and input of the transmission and provides for a compact packaging configuration for a plurality of hydraulic pump/motors. The use of a small accumulator without a valve and a related reservoir absorbs the pressure shocks from rapidly opening and closing the valves that that select or de-select the pump/motors. It is also disclosed that two adjacent pump/motors on the same shaft can be constructed such that they share an input or output port thereby reducing the size of the combination. The transmission can perform the retarder function by placing a flow retarding valve in the re-circulating path in one or more of the pump/motors.
摘要翻译： 本发明包括增加一种新颖的离合器装置，其便于变速器的输出和输入上的变速齿轮，并为多个液压泵/马达提供紧凑的包装结构。 使用没有阀门和相关储存器的小型蓄能器可以快速打开和关闭选择或取消选择泵/电机的阀门的压力冲击。 还公开了同一轴上的两个相邻的泵/马达可以构造成使得它们共享输入或输出端口，从而减小组合的尺寸。 变速箱可以通过在一个或多个泵/马达中的再循环路径中设置阻流阀来执行减速器功能。
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公开(公告)号：US20150128581A1
公开(公告)日：2015-05-14
申请号：US14599746
申请日：2015-01-19
申请人： Mathers Hydraulics
发明人： Norman Ian Mathers
CPC分类号： F16H39/04 , B60K6/12 , F16D33/00 , F16H39/32 , F16H61/40 , F16H61/452 , F16H61/52 , Y02T10/6208
摘要： An example includes a hydraulically controllable coupling to couple a rotating input and to an output to rotate, or to decouple the input and the output, with coupling and decoupling modes selected by switching a hydraulic device such as a vane pump between a pumping mode and a mode in which it does not pump. In an example, the system cooperates with a transmission to increase the number of possible gear ratios in some examples.
摘要翻译： 一个实例包括液压可控制的耦合以耦合旋转输入和输出以旋转，或者通过在泵送模式和泵浦模式之间切换诸如叶片泵的液压装置所选择的耦合和解耦模式来解耦输入和输出 不泵送的模式。 在一个示例中，在一些示例中，系统与变速器协作以增加可能的传动比的数量。
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公开(公告)号：US08956256B2
公开(公告)日：2015-02-17
申请号：US13319972
申请日：2010-04-27
申请人： Shuji Shiozaki , Takeshi Ouchida
发明人： Shuji Shiozaki , Takeshi Ouchida
CPC分类号： F16H47/02 , F16H47/04 , F16H2037/0886 , F16H2200/0004 , F16H2200/2005
摘要： Disclosed is a transmission device for work vehicles, said transmission device being capable of being used with high-horsepower engines, without an accompanying loss of power transmission efficiency or fuel economy. The transmission device is provided with: an input shaft (20) that transmits power from an engine (3); a continuously-variable transmission (40) that is disposed on the input shaft (20) and outputs power transmitted from the input shaft (20), steplessly converting the speed thereof; and a reversing clutch device (50) that outputs, either in a forward rotational direction or a reverse rotational direction, power outputted from the continuously-variable transmission (40). The reversing clutch device (50) can be selectively switched, and the gear ratio can be steplessly changed by the continuously-variable transmission (40).
摘要翻译： 公开了一种用于工作车辆的传动装置，所述传动装置能够与高功率发动机一起使用，而不伴随动力传递效率或燃料经济性的损失。 传动装置设有：从发动机（3）传递动力的输入轴（20）; 设置在所述输入轴（20）上并输出从所述输入轴（20）传递的动力的无级变速器（40），无级转换其速度; 以及从正转方向或反转方向输出从无级变速器（40）输出的动力的换向离合器装置（50）。 可以选择性地切换换向离合器装置（50），通过无级变速器（40）可以无级变速。
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公开(公告)号：US5992150A
公开(公告)日：1999-11-30
申请号：US992772
申请日：1997-12-17
申请人： Frederick P. Eberle
发明人： Frederick P. Eberle
CPC分类号： B60K17/105 , F16H39/04 , Y10T74/2186
摘要： Hydrostatic transmission comprises a radial piston pump assembly having an axis of rotation and a gear motor. A hydrostatic fluid pathway extends between the gear motor and the radial piston pump such that the gear motor is fluidly coupled to the radial piston pump, wherein the gear motor comprises at least one gear which is capable of being rotatably driven by a fluid being transported along the fluid pathway. Preferably, a piston guide retains the piston heads against the corresponding slippers without requiring any kind of direct mechanical linkage to maintain such coupling. The present invention further provides a hydraulic shock absorber which absorbs pressure pulses generated by a rotating rotary cylinder block of a radial piston assembly, which may be either a pump or a motor.
摘要翻译： 静液压变速器包括具有旋转轴线和齿轮马达的径向活塞泵组件。 静压流体通道在齿轮马达和径向柱塞泵之间延伸，使得齿轮马达流体地联接到径向活塞泵，其中齿轮马达包括至少一个齿轮，该齿轮能够被沿着运输的流体旋转地驱动 流体通路。 优选地，活塞导向器将活塞头保持抵靠相应的拖鞋，而不需要任何类型的直接机械连杆来保持这种联接。 本发明还提供了一种液压减震器，其吸收由径向活塞组件的旋转的旋转气缸体产生的压力脉冲，其可以是泵或电动机。
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公开(公告)号：US4329845A
公开(公告)日：1982-05-18
申请号：US114903
申请日：1980-01-24
IPC分类号： F16H61/40 , F16H61/4139 , F15B13/06 , F16H39/04
CPC分类号： F16H61/4139 , F16H61/40
摘要： A hydraulic fluid flow network, utilizing the fluid returned from by an open center hydraulic system, to augment the charging system of a hydrostatic transmission. The augmented charging system provides oil under pressure to flow into the charging system in the event that charging system pressure flow falls below normal. A back pressure is maintained in the return line header of an open center hydraulic system by a relief valve. Flow is diverted to the charging system by a line containing a non return valve.
摘要翻译： 利用由开放式中心液压系统返回的流体的液压流体流动网络来增加静液压传动装置的充气系统。 在充电系统压力流量低于正常值的情况下，增压充电系统提供压力下的油流入充电系统。 通过安全阀在开放式中央液压系统的回流管路中保持背压。 流量通过包含止回阀的管线转移到充气系统。
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公开(公告)号：US4244279A
公开(公告)日：1981-01-13
申请号：US51110
申请日：1979-06-22
申请人： Max E. Stewart , James R. Lucas
发明人： Max E. Stewart , James R. Lucas
CPC分类号： F16C37/002 , F04B1/0408 , F16C32/0666 , F16C33/10 , F16H39/04 , F16N7/38 , F01B2009/045
摘要： A hydrostatic transmission having a pump and a motor of the radial piston type with each cylinder slipper bearing rotatably supported by a hybrid or combination hydrostatic and hydrodynamic bearing on an internal bearing. The hydrostatic bearing component has a restricted port connecting hydrostatic pressure fluid from the cylinder to supply a distribution recess in the slipper bearing surface for hydrostatic pressure feed of the fluid film providing hydrostatic balancing pressure gradient between the slipper and internal bearing to balance a high percentage of the hydrostatic pressure load and to meet flow requirements for low speed operation. The hydrodynamic bearing component has a low pressure source to spray fluid on the internal bearing, annular dams on each side retaining fluid on the internal bearing, and a taper at the leading edge of the slipper bearing to force fluid into the bearing clearance and provide a hydrodynamic balancing pressure component and fluid flow increasing with speed to balance the centrifugal load and effect balancing of the remaining hydrostatic load and to meet flow requirements which increase with speed. The total hydrostatic and hydrodynamic balancing pressure balances the total load.
摘要翻译： 一种静液压变速器，其具有径向活塞式的泵和马达，每个气缸滑动轴承由内部轴承上的混合或组合的静液压和流体动力轴承可旋转地支撑。 静压轴承部件具有限定的端口，连接来自气缸的流体静压力流体，以在滑动支承表面中提供分配凹槽，用于流体薄膜的静水压力进给，从而在滑动件和内部轴承之间提供静水平衡压力梯度，以平衡高百分比 静水压力负荷，满足低速运行的流量要求。 流体动力轴承部件具有低压源以在内部轴承上喷射流体，每侧上的环形坝保持内部轴承上的流体，并且在滑动轴承的前缘处具有锥形，以迫使流体进入轴承间隙并提供 流体动力学平衡压力分量和流体流速随着速度而增加，以平衡离心负荷并影响剩余静水压力的平衡，并满足随速度增加的流量要求。 总静水力和流体动力学平衡压力平衡总负载。
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