公开(公告)号：US10806102B2

公开(公告)日：2020-10-20

申请号：US15946571

申请日：2018-04-05

申请人： Robert Bosch GmbH

发明人： Iain Edward

IPC分类号： F16H61/444 ,  F16H61/448 ,  A01G23/083 ,  F16H61/4043 ,  F16H61/452 ,  A01G23/08

摘要： A hydraulic drive for feed rollers of a head of a complete timber harvester includes two radial piston motors coupled for conjoint rotation to the feed rollers. One radial piston motor has only one displacement volume and the other radial piston motor has two displacement volumes, between which it is possible to switch. A tree trunk clamped between the feed rollers can thus be moved at two speeds. At the higher speed, pressure medium circulates under a control pressure in the second displacement volume of the switchable radial piston motor.

公开(公告)号：US10233925B2

公开(公告)日：2019-03-19

申请号：US15477746

申请日：2017-04-03

申请人： James D. Sutton

发明人： James D. Sutton

IPC分类号： F16D31/02 ,  F04C11/00 ,  F04C2/344 ,  F04C15/06 ,  F16H61/444 ,  F16H39/24 ,  F16H39/32 ,  F03C2/30 ,  F04C14/06

摘要： The present invention discloses a hydraulic style motor having a first power input housing containing a first plurality of rotary or centrifugally driven pumps and associated valves, such that the pumps are driven in a determined stacked fashion by a powered input (or drive) shaft. A second power output housing contains at least one second rotary driven pump and associated valve, the second pumps rotatably engaging a second output (driven) shaft. A pressure resistant fluid line interconnects a manifold associated with the first housing with another manifold associated with the second housing so that the pressurized fluid generated by rotation of the input pumps in the input housing is communicated to the output housing to drive the output pumps to rotate the output (driven) shaft. A return line communicates with the output housing manifold, via each of the individual pump and valve subassemblies, for redirecting flow back to an input feed to the input housing.

公开(公告)号：US09394924B2

公开(公告)日：2016-07-19

申请号：US13981352

申请日：2012-02-03

申请人： Torsten Berg

发明人： Torsten Berg

IPC分类号： F15B13/06 ,  F15B11/17 ,  F16H61/444 ,  F16H61/4078 ,  E02F9/22

CPC分类号： F15B13/06 ,  E02F9/2242 ,  E02F9/2253 ,  E02F9/2282 ,  E02F9/2289 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F16H61/4078 ,  F16H61/444

摘要： A hydrostatic system is configured to be integrated in a vehicle, e.g. an excavator. The hydrostatic system may comprise a first closed hydraulic circuit including a first hydraulic pump and a first hydraulic motor configured to operate a first component of the vehicle, and a second closed hydraulic circuit including a second hydraulic pump and a second hydraulic motor rated to operate a second component of the vehicle. Furthermore, a single six-port two-position directional valve may be provided. The single six-port two-position directional valve may be configured to switch between a first position and a second position such that in the first position the first hydraulic motor is driven by the first hydraulic pump and the second hydraulic motor is driven by the second hydraulic pump, and in the second position the first hydraulic motor is disconnected from the first hydraulic pump and the second hydraulic motor is driven by both the first and second hydraulic pumps. The present disclosure also refers to a method for operating a hydrostatic system configured to be integrated in a vehicle.

摘要翻译： 静液压系统被配置为集成在车辆中，例如， 挖掘机 静液压系统可以包括第一闭合液压回路，其包括构造成操作车辆的第一部件的第一液压泵和第一液压马达，以及第二闭合液压回路，其包括第二液压泵和第二液压马达， 车辆的第二部件。 此外，可以提供单个六端口两位置换向阀。 单个六端口双位置换向阀可以构造成在第一位置和第二位置之间切换，使得在第一位置，第一液压马达由第一液压泵驱动，第二液压马达由第二位置驱动 液压泵，在第二位置，第一液压马达与第一液压泵分离，第二液压马达由第一和第二液压泵驱动。 本公开还涉及一种用于操作被配置为集成在车辆中的静液压系统的方法。

公开(公告)号：US5916138A

公开(公告)日：1999-06-29

申请号：US963699

申请日：1997-11-04

申请人： Berthold Hild ,  Helmut Stotzel

发明人： Berthold Hild ,  Helmut Stotzel

IPC分类号： F15B11/08 ,  F15B7/10 ,  F15B21/14 ,  F16H61/444 ,  F16H61/46 ,  F16H61/478 ,  F16H39/02

CPC分类号： F16H61/478 ,  F15B21/14 ,  F16H61/46 ,  F15B2211/88

摘要： A hydrostatic transmission with a closed hydraulic circuit includes a consumer which is connected through work lines to a reversible hydraulic pump and is pressurized on both sides by an external pressure source. The hydraulic circuit includes a first continuous rinsing and feeding circuit which depends on the leakage flow of the hydraulic pump and possibly a second discontinuous rinsing circuit separate from the first circuit and connected to the external pressure source. The hydrostatic transmission further includes an adjustable regulating device which determines through a valve the adjustment of the hydraulic pump. The regulating device, which may be arranged outside of the immediate vicinity of the hydrostatic transmission, interacts with a control device which is directly assigned to the hydrostatic transmission and includes a valve constructed as a servo valve, wherein, for adjusting the arrangement, the servo valve can be switched to manual control. A manually operable lock valve is provided between the servo valve and the hydraulic pump adjustment. The throttles used for pressurization are adjustable as well as lockable and the work lines are equipped with pick-ups for the actual pressure value.

摘要翻译： 具有闭合液压回路的静液压变速器包括通过工作管线连接到可逆液压泵的消耗器，并且通过外部压力源在两侧加压。 液压回路包括第一连续的冲洗和进料回路，其依赖于液压泵的泄漏流，以及可能的与第一回路分离并连接到外部压力源的第二不连续冲洗回路。 静液压变速器还包括可调节的调节装置，其通过阀确定液压泵的调节。 可以设置在静液压传动装置附近的调节装置与直接分配给静液压传动装置的控制装置相互作用，并且包括构造为伺服阀的阀，其中，为了调整装置，伺服 阀门可切换到手动控制。 在伺服阀和液压泵调节器之间设置有手动操作的锁定阀。 用于加压的节流阀是可调节的，并且可锁定，并且工作线路配备有实际压力值的拾取器。

公开(公告)号：US4813234A

公开(公告)日：1989-03-21

申请号：US65187

申请日：1987-06-19

申请人： Heinrich Nikolaus

发明人： Heinrich Nikolaus

IPC分类号： B60K17/10 ,  F16H61/444 ,  B60K9/00

CPC分类号： B60K17/10 ,  F16H61/444 ,  Y02T10/76

摘要： A hydraulic transmission, in particular for an automotive drive system including a combustion engine comprises at least a pair of hydrostatic pumps and at least a pair of hydrostatic motors each pump and/or motor having the same size or different size with a constant or adjustable through-put. Automatically actuated clutches are provided to connect the pumps to the engine and to connect the motors to a load. A variety of transmission ranges is obtained by activating selected ones of the individual pumps and motors by actuating corresponding clutches. Therefore, the combustion engine may be operated under conditions in which fuel comsumption is as low as possible.

摘要翻译： 特别是用于包括内燃机的汽车驱动系统的液压变速器包括至少一对静液压泵和至少一对静液压马达，每个泵和/或马达具有相同的尺寸或不同尺寸，具有恒定的或可调节的通过 -放。 提供自动离合器以将泵连接到发动机并将电动机连接到负载。 通过激活相应的离合器来激活单独的泵和电动机中的选定的一个来获得各种变速范围。 因此，内燃机可以在燃料消耗尽可能低的条件下运行。

公开(公告)号：US3908376A

公开(公告)日：1975-09-30

申请号：US46954174

申请日：1974-05-13

申请人： SULZER AG

发明人： STEIGER ANTON

IPC分类号： F04B23/06 ,  F04B49/00 ,  F16H61/42 ,  F16H61/444 ,  F16H61/46 ,  F15B13/09

CPC分类号： F16H61/46 ,  F04B49/007 ,  F16H61/42 ,  F16H61/444

摘要： At least one fixed-delivery pump is interconnected in parallel with a variable-delivery pump to drive a motor. A control means serves to connect or disconnect each fixed-delivery pump to or from the motor in response to the variable-delivery pump reaching one or the other of two extreme values of operation. The control means uses a rotary valve to interconnect the fixed delivery pumps which valve is rotated off the adjusting means of the variable-delivery pump via a projection and a formed link guide slot in the rotary valve.

公开(公告)号：US3421389A

公开(公告)日：1969-01-14

申请号：US3421389D

申请日：1966-09-06

申请人： RICHIER SA

发明人： FAUCHERE JEAN

IPC分类号： F16H47/02 ,  F16H61/44 ,  F16H61/444

CPC分类号： F16H47/02 ,  F16H61/44 ,  F16H61/444 ,  Y10T74/19144

公开(公告)号：US2807134A

公开(公告)日：1957-09-24

申请号：US38760953

申请日：1953-10-22

申请人： DONALD W GREEN

发明人： MCGILL DANIEL F

IPC分类号： F16H61/444 ,  F16H61/46 ,  F16H61/462 ,  F16H61/468

CPC分类号： F16H61/468 ,  F16H61/444 ,  F16H61/46 ,  F16H61/462

公开(公告)号：US2276895A

公开(公告)日：1942-03-17

申请号：US30425039

申请日：1939-11-13

申请人： VOSSELER ,  PIERARD ,  WILLIAM HENRY YOUNG ,  BERTRAM GEORGE AIKEN HARKNESS

发明人： FRANZ VOSSELER HEINRICH ,  WILLIAM PIERARD HARRY ALBERT

IPC分类号： F16H61/44 ,  F16H61/444

CPC分类号： F16H61/44 ,  F16H61/444

公开(公告)号：US10788112B2

公开(公告)日：2020-09-29

申请号：US15544829

申请日：2016-01-18

申请人： Mathers Hydraulics Technologies Pty Ltd

发明人： Norman Ian Mathers ,  Robert Price

IPC分类号： F16H47/02 ,  F16H61/44 ,  B60K17/10 ,  F16D3/68 ,  F16D31/00 ,  F16D31/06 ,  F16H61/444 ,  F16D33/00

摘要： Various vehicle systems capable of different operation modes are disclosed. According to one example, the system can include at least one input shaft, at least one output shaft, a plurality of hydraulic devices, and one or more accessories. The plurality of hydraulic devices can be configured to be operable as vane pumps in a retracted vane mode of operation and can be configured to be operable as a hydraulic couplings to couple the at least one input shaft with the at least one output shaft in a vane extended mode of operation. The plurality of hydraulic devices can be simultaneously operable as the hydraulic couplings and the vane pumps. The one or more accessories can be in fluid communication with the plurality of hydraulic devices and can be configured to receive a hydraulic fluid pumped from one or more the plurality of hydraulic devices when operating as the vane pumps.