公开(公告)号：US08678654B2

公开(公告)日：2014-03-25

申请号：US13277982

申请日：2011-10-20

申请人： Peter A. J. Achten

发明人： Peter A. J. Achten

IPC分类号： F16C32/06 ,  F16C17/00

CPC分类号： B60K6/12 ,  B60K7/0015 ,  B60K17/356 ,  F04B1/2021 ,  F04B1/2071 ,  F04B1/2085 ,  F04B1/24 ,  F15B3/00 ,  F15B11/0445 ,  F15B21/14 ,  F16C32/0629 ,  F16C32/0659 ,  F16C32/0692 ,  F16C2360/00 ,  F16H61/4096 ,  F16H61/448 ,  Y02T10/6208

摘要： An axial bearing between a first part and a second part that presses with an axial load against the first part and can rotate around a rotation axis relative to the first part comprising a circular or arc-shaped ridge on the first part centered around the rotation axis, a pressure source for providing pressurized hydraulic fluid on a first side of the circular or arc-shaped ridge, an adjustable gap between the circular or arc shaped ridge and a bearing surface on the second part, wherein the pressurized hydraulic fluid flows through the adjustable gap to a second side of the circular or arc-shaped ridge. In accordance with the invention the circular or arc-shaped ridge or the bearing surface include a ridge chamber for locally creating a larger adjustable gap between the circular or arc-shaped ridge and the bearing surface.

摘要翻译： 第一部分和第二部分之间的轴向轴承，其以轴向载荷压靠在第一部分上并且能够相对于第一部分围绕旋转轴线旋转，该第一部分包括在第一部分上的圆形或圆弧形脊部，其围绕旋转轴线 ，用于在所述圆形或弧形脊的第一侧上提供加压液压流体的压力源，所述圆形或弧形脊与所述第二部分上的支承表面之间的可调节间隙，其中所述加压液压流体流过可调节 间隙到圆形或弧形脊的第二侧。 根据本发明，圆形或弧形脊或支承表面包括脊室，用于在圆形或弧形脊与支承表面之间局部地产生较大的可调间隙。

公开(公告)号：US08443598B1

公开(公告)日：2013-05-21

申请号：US12027048

申请日：2008-02-06

申请人： Raymond Hauser ,  Lonnie E. Holder

发明人： Raymond Hauser ,  Lonnie E. Holder

IPC分类号： F04B23/08

CPC分类号： B60K8/00 ,  B60K17/105 ,  F04B1/148 ,  F04B1/24 ,  F04B1/324 ,  F04B23/00 ,  F04B23/06 ,  F04B27/02

摘要： A drive apparatus for a zero turn vehicle or similar application comprising a pair of pumps mounted in a common housing and having coaxial input shafts and an input shaft mounted in the common housing perpendicular to the two pump shafts. A pair of center sections or end caps including hydraulic porting are mounted to opposite ends of the common housing, and each center section has a hydraulic motor mounted thereon external to the common housing.

公开(公告)号：US20130068091A1

公开(公告)日：2013-03-21

申请号：US13635504

申请日：2011-03-16

申请人： Takahiro Miyata ,  Kazuhiro Maruta

发明人： Takahiro Miyata ,  Kazuhiro Maruta

IPC分类号： F01B3/00

CPC分类号： F01B3/0038 ,  F04B1/24 ,  F04B11/005 ,  F04B53/001 ,  F04C29/0035

摘要： A method of suppressing a pulsation of axial type hydraulic pump/motor includes performing a pressure accumulation operation in which each of ports of each of two pressure accumulation oil passages exclusively communicates with a corresponding one of communication holes and pressure inside one of the cylinder bores is accumulated in a corresponding one of the pressure accumulation oil passages through the communication hole in two levels, the communication holes being provided for each of the cylinder bores to communicate with inside of each of the cylinder bores and having opening portions sliding on the respective ports with rotation of the cylinder block to communicate with the respective ports; and performing an accumulated pressure collection operation in which the pressure accumulated in the pressure accumulation oil passage is collected in one of the cylinder bores in two levels.

摘要翻译： 抑制轴向液压泵/电动机的脉动的方法包括进行压力积蓄运转，其中，两个压力积存油路中的每一个的各端口与相应的一个连通孔连通，并且其中一个气缸孔内的压力是 累积在通过连通孔的相应的一个压力积聚油通道两级中，为每个气缸孔设置连通孔，以与每个气缸孔的内部连通并且具有在各个端口上滑动的开口部分， 气缸体的旋转与相应的端口连通; 并且进行累积的压力收集操作，其中累积在所述压力累积油路中的压力被收集在所述气缸孔中的一个中两级。

公开(公告)号：US07862308B1

公开(公告)日：2011-01-04

申请号：US11601929

申请日：2006-11-20

申请人： Alex S. Y. Leung

发明人： Alex S. Y. Leung

IPC分类号： F01B13/04 ,  F04B1/22

CPC分类号： F04B1/24

摘要： A rotary reciprocating pump comprises: i) a pump housing having intake and discharge ports; a shaft driven rotary piston carder, rotatably carrying pistons circularly arranged therearound; ii) a driven rotary cylinder block having a plurality of cylinder bores therein, circularly arranged therearound for reception of the pistons, and having a flat outer side portion having an intake/discharge port therethrough communicating with the cylinder bores; iii) a stationary sloping inner control surface portion in sliding proximity with the outer side portion of the rotating cylinder block, the control surface portion configured so that the cylinder block moves outwardly for intake and inwardly for discharge, the control surface portion also having grooved openings therethrough to appropriately communicate with the ports to the bore through the cylinder block and with the intake and discharge ports in the pump housing; and, iv) a spring biasing the cylinder blocks towards the control surface portion.

摘要翻译： 旋转往复泵包括：i）具有进排气口的泵壳体; 轴驱动的旋转活塞塞，可旋转地承载环绕其的活塞; ii）从动旋转气缸体，其中具有多个气缸孔，环形布置在其周围，用于接收活塞，并具有平坦的外侧部分，其具有与气缸孔连通的进/排气口; iii）与所述旋转气缸体的外侧部分滑动接近的固定倾斜的内部控制表面部分，所述控制表面部分构造成使得所述气缸体向外移动以进入和向内排出，所述控制表面部分还具有开槽开口 通过其与端口适当地连通到通过气缸体的孔，以及泵壳体中的进入和排出端口; 以及iv）将气缸体朝向控制表面部分偏置的弹簧。

公开(公告)号：US07617761B2

公开(公告)日：2009-11-17

申请号：US11130893

申请日：2005-05-17

申请人： Charles L. Gray, Jr.

发明人： Charles L. Gray, Jr.

IPC分类号： F01B13/04

CPC分类号： F16H61/452 ,  B60K6/12 ,  B60K17/10 ,  B60K26/02 ,  B60W10/04 ,  B60W10/10 ,  B60W30/18 ,  B60W2540/10 ,  B60W2710/1005 ,  B60W2710/105 ,  F04B1/22 ,  F04B1/24 ,  F04B1/328 ,  F04B23/06 ,  F16H61/4096 ,  F16H61/44 ,  F16H61/448 ,  F16H2039/005 ,  F16H2200/0034 ,  Y02T10/6208

摘要： Two motors are arranged on opposing sides of a common shaft, drive plates of the pump/motors being rigidly coupled to each other, for example by being in hard contact with opposing sides of the shaft. By providing hard contact between the pump/motor drive plates and a common shaft, the drive plates and shaft act as a substantially solid element under compression, thereby substantially canceling axial loads generated by the pump/motors directly through the shaft. Residual axial loads are handled via bearings positioned on the shaft adjacent the drive plates in such a manner that the drive plates are in light contact only with the bearings. As a result, friction experienced by the bearings is substantially reduced as compared to conventional systems, thereby improving the efficiency of the system. To further reduce loads on the bearings, the pump/motors are arranged to ensure that they generate radial forces in a direction that is opposite to that of a separation force generated by a torque transferring device carried on the shaft and transmitted to the bearings. A common housing surrounding the two pump/motors, bearings and torque transferring device is divided into three regions, to segregate the bearings and torque transferring assembly from the pump/motors. In this manner, the regions containing the pump/motors are substantially filled with oil to, for example, fully lubricate the pump/motors, while the central region containing the gears and torque transferring device contains a significantly smaller volume of oil to simply splash lubricate the contents of the region, thereby reducing drag on the bearings. Control means are provided for selectively moving the two pump/motors substantially simultaneously to a selected displacement angle, using mechanical systems alone and in combination with hydraulic systems.

摘要翻译： 两个电动机布置在公共轴的相对侧上，例如通过与轴的相对侧硬接触，泵/电动机的驱动板彼此刚性地联接。 通过在泵/马达驱动板和公共轴之间提供硬接触，驱动板和轴作为压缩下的基本上实心的元件，从而基本上消除了泵/马达直接通过轴产生的轴向载荷。 残余轴向载荷通过位于与驱动板相邻的轴上的轴承来处理，使得驱动板仅与轴承轻微接触。 结果，与常规系统相比，轴承所经历的摩擦力大大降低，从而提高了系统的效率。 为了进一步减少轴承上的负载，泵/电动机被布置成确保它们产生径向力，该方向与由承载在轴上并传递到轴承的转矩传递装置产生的分离力的方向相反。 围绕两个泵/马达，轴承和扭矩传递装置的共同壳体被分为三个区域，以将轴承和扭矩传递组件与泵/马达隔离。 以这种方式，包含泵/马达的区域基本上填充有油，以例如完全润滑泵/马达，而包含齿轮和扭矩传递装置的中心区域包含明显较小体积的油以简单地飞溅润滑 该区域的内容物，从而减少轴承上的阻力。 提供控制装置，用于使用机械系统单独并与液压系统组合，将两个泵/马达基本上同时地移动到选定的位移角。

公开(公告)号：US20070278027A1

公开(公告)日：2007-12-06

申请号：US11891869

申请日：2007-08-13

申请人： Charles Gray ,  Daniel Barba

发明人： Charles Gray ,  Daniel Barba

IPC分类号： B60K17/356

CPC分类号： F04B23/06 ,  B60K6/12 ,  B60K17/10 ,  B60K17/105 ,  B60K17/356 ,  B60K26/02 ,  B60W10/04 ,  B60W10/10 ,  B60W20/00 ,  B60W20/14 ,  B60W2540/10 ,  B60W2710/09 ,  B60W2710/105 ,  F04B1/24 ,  F04B1/328 ,  F16H3/0915 ,  F16H61/4096 ,  F16H61/44 ,  F16H61/448 ,  F16H61/452 ,  F16H61/462 ,  F16H2039/005 ,  F16H2200/0034 ,  Y02T10/6208

摘要： A vehicle includes an integrated drive module coupled to an axle thereof. The module includes a hydraulic motor configured to provide motive power at an output shaft, and a differential for distributing the motive power to right and left portions of the axle. The hydraulic motor and the differential are encased within a common housing. The vehicle may include a second integrated drive module having, within a housing, a second hydraulic motor (or multiple hydraulic motors), and a second differential coupled thereto and configured to distribute motive power to right and left portions of a second axle. The second module may also include a transmission within the same housing. The transmission may be a two speed or other multi-speed transmission. The second module is configured to operate in neutral while power demand is below a threshold, and to engage while the power demand exceeds the threshold. The second module may be configured to remain engaged for full-time four-wheel-drive operation.

摘要翻译： 车辆包括联接到其轴的集成驱动模块。 模块包括被构造成在输出轴处提供动力的液压马达和用于将动力分配到车轴的右侧部分和左侧部分的差速器。 液压马达和差速器被封装在公共壳体内。 车辆可以包括第二集成驱动模块，其在壳体内具有第二液压马达（或多个液压马达）和耦合到其上的第二差速器，并且构造成将动力分配到第二轴的左侧部分和左侧部分。 第二模块还可以包括在同一外壳内的传输。 传输可以是两速或其它多速传输。 第二模块被配置为在功率需求低于阈值的情况下工作在空档，并且在功率需求超过阈值时接合。 第二模块可以被配置为保持接合以进行全时四轮驱动操作。

公开(公告)号：US20060120881A1

公开(公告)日：2006-06-08

申请号：US10540113

申请日：2003-12-05

申请人： Joerg Dantlgraber

发明人： Joerg Dantlgraber

IPC分类号： F04B27/08 ,  F01B13/04

CPC分类号： F01B3/0035 ,  F01B3/0038 ,  F04B1/2035 ,  F04B1/22 ,  F04B1/24

摘要： What is disclosed is an axial-piston machine having at least one swash plate and one cylinder drum supported thereon, which includes a multiplicity of cylinder sleeves. To the cylinder sleeves a row of pistons is associated which is connected with a shaft. In accordance with the invention, the cylinder sleeves are articulatedly mounted in the cylinder drum.

摘要翻译： 公开的是一种轴向活塞机，其具有至少一个旋转斜盘和一个支撑在其上的气缸滚筒，其包括多个气缸套筒。 与气缸套相连，一排活塞与轴连接。 根据本发明，气缸套被铰接地安装在气缸滚筒中。

公开(公告)号：US06973783B1

公开(公告)日：2005-12-13

申请号：US10788534

申请日：2004-02-27

申请人： Raymond Hauser ,  Lonnie E. Holder

发明人： Raymond Hauser ,  Lonnie E. Holder

IPC分类号： F04B1/32 ,  F04B23/06 ,  F04B23/08

CPC分类号： B60K8/00 ,  B60K17/105 ,  F04B1/148 ,  F04B1/24 ,  F04B1/324 ,  F04B23/00 ,  F04B23/06 ,  F04B27/02

摘要： A drive apparatus for a zero turn vehicle or similar application comprising a pair of pumps mounted in a common housing and having coaxial input shafts and an input shaft mounted in the common housing perpendicular to the two pump shafts. A pair of center sections or end caps including hydraulic porting are mounted to opposite ends of the common housing, and each center section has a hydraulic motor mounted thereon external to the common housing.

摘要翻译： 一种用于零转弯车辆或类似应用的驱动装置，包括安装在公共壳体中的一对泵，并具有同轴输入轴和垂直于两个泵轴安装在公共壳体中的输入轴。 一对中心部分或端盖包括液压端口安装在公共壳体的相对端，并且每个中心部分具有安装在公共壳体外部的液压马达。

公开(公告)号：US20040011031A1

公开(公告)日：2004-01-22

申请号：US10620726

申请日：2003-07-15

申请人： Government of the United States of America

发明人： Charles L. Gray JR.

IPC分类号： F16D031/00 ,  F16D033/00 ,  F16D037/00 ,  F16D039/00

CPC分类号： F16H61/452 ,  B60K6/12 ,  B60K17/10 ,  B60K26/02 ,  B60W10/04 ,  B60W10/10 ,  B60W30/18 ,  B60W2540/10 ,  B60W2710/1005 ,  B60W2710/105 ,  F04B1/22 ,  F04B1/24 ,  F04B1/328 ,  F04B23/06 ,  F16H61/4096 ,  F16H61/44 ,  F16H61/448 ,  F16H2039/005 ,  F16H2200/0034 ,  Y02T10/6208

摘要： Two motors are arranged on opposing sides of a common shaft, drive plates of the pump/motors being rigidly coupled to each other, for example by being in hard contact with opposing sides of the shaft. By providing hard contact between the pump/motor drive plates and a common shaft, the drive plates and shaft act as a substantially solid element under compression, thereby substantially canceling axial loads generated by the pump/motors directly through the shaft. Residual axial loads are handled via bearings positioned on the shaft adjacent the drive plates in such a manner that the drive plates are in light contact only with the bearings. As a result, friction experienced by the bearings is substantially reduced as compared to conventional systems, thereby improving the efficiency of the system. To further reduce loads on the bearings, the pump/motors are arranged to ensure that they generate radial forces in a direction that is opposite to that of a separation force generated by a torque transferring device carried on the shaft and transmitted to the bearings. A common housing surrounding the two pump/motors, bearings and torque transferring device is divided into three regions, to segregate the bearings and torque transferring assembly from the pump/motors. In this manner, the regions containing the pump/motors are substantially filled with oil to, for example, fully lubricate the pump/motors, while the central region containing the gears and torque transferring device contains a significantly smaller volume of oil to simply splash lubricate the contents of the region, thereby reducing drag on the bearings. Control means are provided for selectively moving the two pump/motors substantially simultaneously to a selected displacement angle, using mechanical systems alone and in combination with hydraulic systems.

摘要翻译： 两个电动机布置在公共轴的相对侧上，例如通过与轴的相对侧硬接触，泵/电动机的驱动板彼此刚性地联接。 通过在泵/马达驱动板和公共轴之间提供硬接触，驱动板和轴作为压缩下的基本上实心的元件，从而基本上消除了泵/马达直接通过轴产生的轴向载荷。 残余轴向载荷通过位于与驱动板相邻的轴上的轴承来处理，使得驱动板仅与轴承轻微接触。 结果，与常规系统相比，轴承所经历的摩擦力大大降低，从而提高了系统的效率。 为了进一步减少轴承上的负载，泵/电动机被布置成确保它们产生径向力，该方向与由承载在轴上并传递到轴承的转矩传递装置产生的分离力的方向相反。 围绕两个泵/马达，轴承和扭矩传递装置的共同壳体被分为三个区域，以将轴承和扭矩传递组件与泵/马达隔离。 以这种方式，包含泵/马达的区域基本上填充有油，以例如完全润滑泵/马达，而包含齿轮和扭矩传递装置的中心区域包含明显较小体积的油以简单地飞溅润滑 该区域的内容物，从而减少轴承上的阻力。 提供控制装置，用于使用机械系统单独并与液压系统组合，将两个泵/马达基本上同时地移动到选定的位移角。

公开(公告)号：US4991492A

公开(公告)日：1991-02-12

申请号：US442262

申请日：1989-11-28

申请人： Stig Bratt ,  Torby Malmros

发明人： Stig Bratt ,  Torby Malmros

IPC分类号： F04B1/24

CPC分类号： F04B1/24

摘要： A variable displacement hydrostatic axial piston machine has a cylinder barrel which is rotatable in a yoke and has a plurality of circumferentially spaced cylinder bores in which are mounted pistons which with the ends of their associated piston rods are journalled in a drive disk on a machine shaft rotatably mounted in the casing of the machine. The yoke is mounted in said casing pivotable about a transfer axis through the drive disk center by means of an adjustment device for varying the displacement and possibly also the mode of the operation of the machine, in the yoke and the machine casing furthermore being disposed a pair of hydraulic fluid connecting conduits. For obtaining a lighter and more compact design of the machine the yoke is formed with a guiding segment instead of another leg, said segment being adapted to be moved in a curved guide path in the casing located in a plane perpendicular to the pivot axis of the yoke, one of the connecting conduits for hydraulic fluid to the cylinder barrel extending within said yoke leg while the other is formed by a hollow space in the machine casing, and the adjustment device comprises two cylinder bores in the yoke with adjustment pistons therein and an adjustment valve for selectively connecting one of said pair of adjustment cylinder bores with one of the hydraulic fluid conduits for adjusting the yoke.

摘要翻译： 可变排量静液压轴向活塞机具有可在轭中旋转的缸筒，并且具有多个周向间隔开的缸孔，其中安装有活塞，活塞与其相关联的活塞杆的端部轴颈连接在机械轴上的驱动盘中 可旋转地安装在机器的外壳中。 轭架安装在所述壳体中，通过调节装置绕传动轴线绕传动轴线转动，该调节装置用于改变机架的位移和可能的操作模式，此外还设置在机架壳体 一对液压流体连接导管。 为了获得更轻和更紧凑的机器设计，轭架形成有导向段而不是另一个腿，所述段适于在位于垂直于所述机架的枢轴的平面的壳体中的弯曲引导路径中移动 轭，其中一个连接导管，用于在所述轭腿内延伸到气缸筒的液压流体的另一个连接导管，而另一个由机壳中的中空空间形成，并且调节装置包括位于轭中的两个气缸孔，其中具有调节活塞， 调节阀，用于选择性地将所述一对调节气缸孔中的一个与用于调节轭的液压流体管道中的一个连接。