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1. 发明授权

US10753469B2 Hydrostatic transmission and method for braking using the same 有权
公开(公告)号：US10753469B2
公开(公告)日：2020-08-25
申请号：US15894769
申请日：2018-02-12
申请人： Robert Bosch GmbH
发明人： Heiko Witte , Martin Behm
IPC分类号： F16H61/4157 , F16H61/4017 , F16H39/10 , F16H61/46 , F16H61/425 , F16H61/438 , F16H61/435 , F16H59/18 , F16H59/44 , F16H59/36 , F16H59/68
摘要： A hydrostatic transmission for a traction drive of a mobile working machine includes a variable-displacement pump and one or more motors connected to one another in a closed hydraulic circuit. An electronic control unit of the hydrostatic transmission is configured to initiate and to end a braking operation by the hydrostatic transmission if a traveling speed of the mobile working machine reaches a threshold value. The threshold value is adjustable by the electronic control unit automatically or in a manner dependent on a driver demand. The braking torque is also adjustable.

2. 发明申请

US20180051803A1 Hydraulic Mechanical Transmission with Increased Efficiency 审中-公开
公开(公告)号：US20180051803A1
公开(公告)日：2018-02-22
申请号：US15680805
申请日：2017-08-18
申请人： Eaton Corporation
发明人： QingHui Yuan , Matthew E. Creswick
IPC分类号： F16H61/438 , F16H61/00 , F16H39/10 , F16H47/04 , F16H47/07
CPC分类号： F16H61/438 , F16H39/10 , F16H39/12 , F16H47/02 , F16H47/04 , F16H47/07 , F16H61/0009 , F16H61/0025 , F16H2037/0866 , F16H2039/105 , F16H2047/045
摘要： 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 mechanical torque transfer arrangement transfers torque between the first shaft of the first hydraulic unit and a rotatable housing of the second hydraulic unit. One of the first and second hydraulic units operates as a hydraulic pump and the other operates as a hydraulic motor, and both of the first and second hydraulic units have variable displacement.

3. 发明授权

US09664270B1 Hydrostatic transmission 有权
公开(公告)号：US09664270B1
公开(公告)日：2017-05-30
申请号：US13960567
申请日：2013-08-06
申请人： Hydro-Gear Limited Partnership
发明人： Thomas J. Langenfeld
IPC分类号： F16H39/10 , F16H39/42
CPC分类号： F16H39/42 , A01D34/10 , A01D34/475 , A01D34/6806 , F16H39/10
摘要： A hydrostatic transmission includes a pump running surface and a motor running surface connected by internal porting formed in a housing member. A valve is disposed in the housing and connects a sump formed by the housing and the internal porting. A trunnion includes a first arm engaged to a swash plate to rotate the swash plate to vary the output of the pump, and a second arm which rotates with the first arm, the second arm having an operative end that is capable of opening the valve to permit a hydraulic connection between the internal porting and the sump through the valve bore when the trunnion is rotated to a predetermined position.

4. 发明申请

US20100107626A1 Hydraulic variator with adjustable drum plates 审中-公开
标题翻译：具有可调节鼓板的液压变速器
公开(公告)号：US20100107626A1
公开(公告)日：2010-05-06
申请号：US12289696
申请日：2008-10-31
申请人： Bryan Nelson , Kirat Shah
发明人： Bryan Nelson , Kirat Shah
IPC分类号： F16H39/14 , F16H39/10
CPC分类号： F16H39/14 , F16H47/04 , F16H2037/088 , F16H2200/2005
摘要： A variator is provided having a first shaft rotatable around a first longitudinal axis associated with the first shaft and a second shaft rotatable around a second longitudinal axis associated with the second shaft. The variator also has a pump driven by the first shaft. The pump includes a first plurality of drum sleeves attached to a first drum plate tilted at a first angle relative to the first longitudinal axis. The drum sleeves are positioned to slidingly receive a first plurality of piston members. Each piston member is configured to form a seal substantially perpendicular to an axis of an associated drum sleeve. The seal substantially prevents fluid from leaking out of a chamber formed by the piston member end the drum sleeve. The variator further includes a motor fluidly coupled to the pump and configured to drive the second shaft.
摘要翻译：提供了一种变速器，其具有可围绕与第一轴相关联的第一纵向轴线旋转的第一轴和可围绕与第二轴关联的第二纵向轴线旋转的第二轴。变速器还具有由第一轴驱动的泵。泵包括附接到相对于第一纵向轴线以第一角度倾斜的第一鼓板的第一多个滚筒套筒。滚筒套筒定位成滑动地容纳第一多个活塞件。每个活塞构件构造成形成基本上垂直于相关联的滚筒套筒的轴线的密封件。密封件基本上防止流体从由活塞构件形成的腔室泄漏到终止鼓套筒。变换器还包括流体耦合到泵并被配置为驱动第二轴的电动机。

5. 发明授权

US07472547B2 Hydraulic differential for integrated drive generator 失效
标题翻译：集成驱动发电机液压差速器
公开(公告)号：US07472547B2
公开(公告)日：2009-01-06
申请号：US11588014
申请日：2006-10-26
申请人： Andrew P Grosskopf , Magdy A Kandil , Glenn C. Lemmers , David S. Behling
发明人： Andrew P Grosskopf , Magdy A Kandil , Glenn C. Lemmers , David S. Behling
IPC分类号： F16H39/10 , F16H61/48
CPC分类号： F16H39/14
摘要： A hydraulic differential with a variable displacement hydraulic unit of the axial piston type, a fixed displacement hydraulic unit of the axial piston type, a stationary housing for mounting the hydraulic units, an input shaft for coupling to a variable speed power source and an output shaft for coupling to a constant speed load, comprises: a wobbler and a port plate for the variable displacement hydraulic unit coupled to the stationary housing; an axial block and piston set for the variable displacement hydraulic unit, a port plate for the fixed displacement hydraulic unit and a wobbler for the fixed displacement hydraulic unit coupled to the input shaft; and an axial block and piston set for the fixed displacement hydraulic unit coupled to the output shaft; wherein the variable displacement hydraulic unit port plate and the fixed displacement hydraulic unit port plate couple together through a circumferential interface to minimise hydraulic thrust forces developed by the hydraulic unit.
摘要翻译：具有轴向活塞式可变排量液压单元的液压差速器，轴向活塞式的固定位移液压单元，用于安装液压单元的固定壳体，用于连接到变速动力源的输入轴和输出轴用于耦合到恒定速度负载，包括：用于可变排量液压单元的摆动器和端口板，其联接到固定壳体; 用于可变排量液压单元的轴向块和活塞组，用于固定排量液压单元的端口板和用于与输入轴联接的固定位移液压单元的摆动器; 以及联接到输出轴的用于固定位移液压单元的轴向块和活塞组; 其中所述可变排量液压单元端口板和所述固定位移液压单元端口板通过圆周界面联接在一起，以最小化由所述液压单元产生的液压推力。

6. 发明授权

US6007446A Drive unit 失效
标题翻译：驱动单元
公开(公告)号：US6007446A
公开(公告)日：1999-12-28
申请号：US832926
申请日：1997-04-04
申请人： Heinrich Lang , Wolfgang Seiboth
发明人： Heinrich Lang , Wolfgang Seiboth
IPC分类号： B60R1/074 , F16H1/16 , H02K7/06 , F16H39/10
CPC分类号： B60R1/074 , F16H1/16 , H02K7/06
摘要： A drive unit comprising a housing, a first worm gear rotatably mounted in the housing, an axle having a first end secured to the housing and defining a central axis therethrough, and a second worm gear mounted in the housing for rotation about the central axis, the first worm gear meshing with the second worm gear for driving the second worm gear. A planetary drive is mounted concentrically around the central axis and includes an output gear driven responsive to the second worm gear. An annular gear is driven by the output gear concentrically around the central axis for driving a work piece, the axle extending through the planetary drive into an opening within the annular gear. The planetary drive may include a sun gear mounted for rotation with the second worm gear, an annular gear fixed to the housing concentric with the central axis, and at least one planetary gear driven by the sun gear within the annular gear around and spaced from the central axis.
摘要翻译：驱动单元，包括壳体，可旋转地安装在壳体中的第一蜗轮，具有固定到壳体的第一端并限定穿过其中的中心轴线的轴;以及安装在壳体中以围绕中心轴线旋转的第二蜗轮，第一蜗轮与用于驱动第二蜗轮的第二蜗轮啮合。行星驱动器围绕中心轴线同心地安装，并且包括响应于第二蜗杆传动的输出齿轮。环形齿轮由输出齿轮围绕中心轴线同心地驱动，用于驱动工件，该轴通过行星传动装置延伸到环形齿轮内的开口中。行星驱动器可以包括安装成与第二蜗轮一起旋转的太阳齿轮，固定到壳体与中心轴线同心的环形齿轮，以及由环形齿轮内的太阳齿轮驱动的至少一个行星齿轮围绕并与其隔开中心轴。

7. 发明授权

US5938224A Hydraulic bicycle with conjugate drive motors and variable stroke crankshaft 失效
标题翻译：具有共轭驱动电机和可变行程曲轴的液压自行车
公开(公告)号：US5938224A
公开(公告)日：1999-08-17
申请号：US778156
申请日：1997-01-10
申请人： Douglas C. Brackett
发明人： Douglas C. Brackett
IPC分类号： B62M19/00 , F16H39/10
CPC分类号： F16H39/10 , B62M19/00 , Y10T74/18256
摘要： A device for transmitting power between mechanical movements which includes a fluid pump coupled to a first mechanical movement for pumping a fluid, a fluid motor coupled to a second mechanical movement and a manifold connecting the fluid pump and the fluid motor capable of conducting fluid output from the fluid pump to the fluid motor to drive the fluid motor and recirculate the fluid back to said fluid pump. Either the fluid pump and/or the fluid motor incorporates a conjugate drive motion translator. The power transmission is suitable for use on a bicycle replacing the typical gears and chain and preferably includes a shunt to permit the motor to override the pump, an apportionment valve to control the ratio of movement between a first and second mechanical movement, and a brake valve for stopping the second mechanical movement. Either the fluid pump and/or fluid motor may be of a variable output design incorporating a crankshaft of variable stroke, adjustable on-the-fly.
摘要翻译：一种用于在机械运动之间传递动力的装置，其包括耦合到用于泵送流体的第一机械运动的流体泵，耦合到第二机械运动的流体马达和连接流体泵和流体马达的歧管，所述流体泵能够从流体泵到流体马达以驱动流体马达并将流体再循环回所述流体泵。流体泵和/或流体马达都包含共轭驱动运动转换器。动力传动适用于替代典型齿轮和链条的自行车，并且优选地包括分流器以允许电动机超驰泵，分配阀以控制第一和第二机械运动之间的运动比和制动器用于停止第二机械运动的阀。流体泵和/或流体马达可以是具有可变输出设计的可变输出设计，其包括可调节的可变行程的曲轴。

8. 发明授权

US5839889A Infinitely variable vane-type hydraulic machine 失效
标题翻译：无级变速叶片式液压机
公开(公告)号：US5839889A
公开(公告)日：1998-11-24
申请号：US478947
申请日：1995-06-07
申请人： Lawrence R. Folsom , Clive Tucker
发明人： Lawrence R. Folsom , Clive Tucker
IPC分类号： F04C14/20 , F16H39/10 , F16H39/32 , F03C2/22 , F04C2/344
CPC分类号： F04C14/20 , F16H39/10 , F16H39/32 , F16H2039/105
摘要： A hydraulic machine having a continuously variable displacement includes a vane rotor having a plurality of radial vanes thereon and a connection for a torque transmitting shaft driven by a prime mover such as an engine or an electric motor. A cam ring is supported in a position surrounding the vane rotor and has an interior surface facing the vane rotor. The interior surface and the vane rotor define between them a working volume swept by the vanes. The cam ring has flexible portions therearound capable of flexing radially when inwardly directed radial forces are exerted thereon to change the shape of the swept volume within the cam ring. A control mechanism in the housing has an adjustable force generating device bearing against a force exerting member engaged with the cam ring for exerting a squeezing force on the ring to distort the cross-sectional shape of the cam ring and the swept volume within the cam ring. The adjustable force generating device includes a rod having a wedge-shaped notch therein, and the force exerting member includes a toggle having one end fitted into the notch and an opposite end engaged in a wedge shaped notch in an abutment on the cam ring. The cross-sectional shape of the cam ring swept by the vanes may be continuously adjusted by the control mechanism thereby continuously adjusting the displacement of the vane rotor per revolution thereof.
摘要翻译：具有连续可变位移的液压机械包括其上具有多个径向叶片的叶片转子和由诸如发动机或电动机的原动机驱动的扭矩传递轴的连接。凸轮环支撑在围绕叶片转子的位置，并且具有面向叶片转子的内表面。内表面和叶片转子在它们之间限定了由叶片扫过的工作体积。凸轮环具有能够径向弯曲的柔性部分，当向内的径向力施加在其上以改变凸轮环内的扫掠体积的形状时。壳体中的控制机构具有可调节的力产生装置，其抵靠与凸轮环接合的施力部件，以在环上施加挤压力，以使凸轮环的横截面形状和凸轮环内的扫掠体积变形。所述可调节力产生装置包括其中具有楔形凹口的杆，并且所述施力构件包括具有装配到所述凹口中的一端的肘节以及与所述凸轮环上的邻接部中的楔形凹口接合的相对端。由叶片扫过的凸轮环的横截面形状可以通过控制机构连续调节，从而连续地调节叶片转子的每转一次的位移。

9. 发明授权

US5718570A Rotary control valve for a piston pump 失效
标题翻译：活塞泵用旋转控制阀
公开(公告)号：US5718570A
公开(公告)日：1998-02-17
申请号：US407405
申请日：1995-03-20
申请人： Carl D. Beckett , Kevin O'Hara , Daniel B. Olsen
发明人： Carl D. Beckett , Kevin O'Hara , Daniel B. Olsen
IPC分类号： F16H39/10
CPC分类号： F16H39/10 , Y10T137/86638
摘要： A reciprocating piston pump provides pulsation free delivery of liquid. It is suitable for use in compact environments or for the delivery of small amounts of liquid, as in chromatographic analysis devices. The pump includes two pistons with pumping chambers that are alternately connected to inflow and outflow lines through a control valve. The control valve moves between a first position in which inflow is directed to the first piston chamber and outflow to the second piston chamber, and a second position in which outflow is directed to the first piston chamber and inflow is directed to the second piston chamber. Each outflow pulse from the piston is sustained longer than each inflow pulse, and the outflow pulses are staggered and partially superimposed to provide substantially pulsation free delivery of liquid from the pump. A rotating cam moves the pistons of the pumps and the control valve between their operating positions described above. The cam rotates at a constant speed around an axis that is parallel to the axis of movement of the piston pumps.
摘要翻译：往复式活塞泵提供无脉动的液体输送。如在色谱分析装置中，适用于紧凑型环境或少量液体的输送。该泵包括两个具有泵送室的活塞，其通过控制阀交替地连接到流入和流出管路。控制阀在流入第一活塞室的第一位置和第二活塞室流出的第一位置和第二位置之间移动，在第二位置，流出流向第一活塞室，流入被引导到第二活塞室。来自活塞的每个流出脉冲比每个流入脉冲持续更长的时间，并且流出脉冲交错并且部分地叠加以提供液体从泵基本上无脉动地输送。旋转凸轮将泵的活塞和控制阀在上述操作位置之间移动。凸轮围绕平行于活塞泵的运动轴线的轴线以恒定的速度旋转。

10. 发明授权

US5655370A Vane-type continuously variable transmission 失效
公开(公告)号：US5655370A
公开(公告)日：1997-08-12
申请号：US480772
申请日：1995-06-07
申请人： Lawrence R. Folsom , Clive Tucker
发明人： Lawrence R. Folsom , Clive Tucker
IPC分类号： F04C14/20 , F16H39/10 , F16H39/32 , F16D39/00
CPC分类号： F16H39/10 , F04C14/20 , F16H39/32 , F16H2039/105
摘要： A continuously variable transmission includes a housing in which input and output shafts are journaled for rotation. Both input and output shafts have torque couplings for connection to drive shafts of a prime mover and a driven load such as the drive axle of a vehicle. The input shaft is coupled to a vane rotor of a vane-type pump having radially extending pump vanes driven by the pump rotor around a pump working volume between two axially spaced pump side plates surfaces and within an inside surface of a flexible pump cam ring spaced radially from the pump rotor. The pump vanes each have a radial end edge remote from the pump rotor and in contact with the pump cam surface. A stator hub is fixed to the housing and has radially extending stator vanes projecting radially into a stator working volume between two axially spaced stator side plate surfaces and between a cam surface of a flexible stator cam ring and the radially spaced surface of the stator hub. The stator vanes each have a radial end edge remote from the hub and in contact with the stator cam surface. Torque is transmitted from the stator cam ring and the pump cam ring to the output shaft by a torque coupling. Fluid openings are provided for passing fluid pressurized in the pump directly from the pump working volume into the stator, and for passing fluid displaced from the stator directly from the stator working volume into suction sectors of the pump. A cam ring adjustment mechanism is mounted in the housing for changing the radial spacing of portions of the pump cam ring from the pump rotor, and for changing the radial spacing of portions of the stator cam ring from the stator hub. Rotation of the pump rotor by the input shaft pressurizes fluid in the pump working volume which acts against the pump cam ring to generate torque that is transmitted to the output shaft, and the pressurized fluid in the pump working volume communicates through the fluid openings to pressurize fluid in the stator working volume which acts against the stator cam ring to generate additional torque that is transmitted to the output shaft, and the cam adjustment mechanism is operated to reciprocally change the displacement of the pump and the stator to change the transmission ratio of the transmission.

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