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| Number | Title | Issue Date |
| 7941998 | Hydrostatic continuously variable transmission A hydrostatic continuously variable transmission includes a swash plate type plunger hydraulic pump and a swash plate type plunger hydraulic motor connected via a hydraulic closed circuit, an inclined angle of a swash plate of the hydraulic motor is variably control... | 05/17/2011 |
| 7526919 | Drive system having a common control-pressure connection The invention relates to a drive system (1) having a first driving shaft (2) and having a second driving shaft (3). The second driving shaft (3) is connected to a cylinder barrel of a hydrostatic piston machine (4) in a torsionally... | 05/05/2009 |
| 7258535 | Sealing features for a pump and ink jet printer mounting the pump A pump is provided with a housing, a rotor, and a separating member. The housing is formed by connecting two housing members. A first housing member has a cylindrical wall and a bottom wall, and the other end of the cylindrical wall is open. A second housing member ... | 08/21/2007 |
| 5855115 | Auxiliary hydraulic motor An auxiliary hydraulic motor comprises a fixed casing having a cam, a cylinder block, an internal fluid distributor, and a through shaft which extends inside the casing along the axis of rotation of the cylinder block. The through shaft is constituted by ... | 01/05/1999 |
| 5682315 | Method and system for controlling a split torque transmission The present invention relates to a method and system for controlling a split torque transmission having a hydrostatic transmission and a mechanical transmission. The control system employs a transmission control and includes a transmission input speed sen... | 10/28/1997 |
| 5644916 | Hydraulic pressure supply system for variable torque transfer of four-wheel drive vehicle A hydraulic pressure supply system for a variable torque transfer of a four-wheel drive vehicle in which a driving-torque distribution ratio between front and rear road wheels is varied by adjusting a clutch pressure applied to a variable torque clutch as... | 07/08/1997 |
| 5406793 | Transmission and control mechanism for hydrostatic-mechanical power transmission system A transmission and control mechanism for a hydrostatic-mechanical power transmission system, provided with a mechanical transmission driven through an input shaft connected to a engine, a hydrostatic transmission connected to the input shaft, and a differ... | 04/18/1995 |
| 5221101 | Power transmitting system for four-wheel drive vehicle A power transmitting system for a four-wheel drive vehicle includes a first hydraulic pump driven interlockingly with the rotation of front wheels, a second hydraulic pump driven interlockingly with the rotation of rear wheels, and a hydraulic clutch for ... | 06/22/1993 |
| 5201820 | Power transmission system for a four-wheel drive vehicle To ensure the benefits of four-wheel drive when the vehicle is accelerating or when the front wheels are slipping, and to eliminate the disadvantage of undesirably transmitting the braking force to the rear wheels when the vehicle is decelerating or when ... | 04/13/1993 |
| 5092824 | Pump output control system with high efficiency hydromechanical variable speed drive A power recovery speed control apparatus for use in a system driven by a substantially constant-speed power source driving a turbine type water pump. The system includes a hydromechanical trimmer device controlled by pump output pressure to modify the tur... | 03/03/1992 |
| 4941320 | Industrial hydraulic door operator A door operator having a fluid drive motor and a manual override. The bidirectional hydraulic motor connects to a drive shaft through a power train including a shiftable --quill--type manual clutch mechanism which allows an alternate connection of the dri... | 07/17/1990 |
| 4694648 | Anti-plug control An anti-plug control for a drive to prevent jamming of a driven working element in response to an overload wherein said drive includes a hydrostatic transmission having a variable displacement unit and a fixed displacement unit connected in closed circuit... | 09/22/1987 |
| 4458486 | Wobble-torque hydraulic transmission This invention is directed to a wobble-torque hydraulic transmission device which has variable forward and reverse speeds and is also provided with a straight-through drive feature. The device is provided with a coaster brake feature that prevents the dev... | 07/10/1984 |
| 4387783 | Fuel-efficient energy storage automotive drive system A fuel-saving energy storage vehicle drive system which saves fuel, primarily under stop-and-go driving conditions, by collecting, storing and using energy normally lost in the braking or deceleration of the vehicle, by automatically controlled operation ... | 06/14/1983 |
| 4364229 | Automotive energy managing transmission An automotive energy managing transmission comprising a differential for splitting the power to mechanical and hydrostatic branches. The transmission is adapted to operate in several modes: hydrostatic in the city, hydromechanical and mechanical on the hi... | 12/21/1982 |
| 4223532 | Automotive energy management system A hydromechanical/hydrostatic automotive energy management system comprising two hydraulic units, the system adapted to provide: An efficient, continuously variable optimal transmission ratio, an intermittent optimal engine operation in city traffic and r... | 09/23/1980 |
| 4215545 | Hydraulic system for transmitting power from an internal combustion engine to the wheels of a motor vehicle A motor vehicle engine is arranged to drive the vehicle wheels through a mechanical transmission, an hydraulic system including a variable-output, reversible, hydraulic pump, a variable-output hydraulic motor usable reversibly as a pump and a two-speed ge... | 08/05/1980 |
| 4196587 | Multi-mode transmission A gearless split torque (mechanical/hydrostatic), twin range (reduction/ overdrive) with a direct mechanical drive in-between, hydrostatic transmission with regenerative braking and engine starting capabilities comprising two hydraulic pumps tied together... | 04/08/1980 |
| 4196586 | Multi-mode hydrostatic transmission A gearless split torque (mechanical/hydrostatic), twin range (reduction/overdrive) with a direct mechanical drive in-between, hydrostatic transmission with regenerative braking and engine starting capabilities comprising two hydraulic pumps tied together ... | 04/08/1980 |
| 4175389 | Hydromechanical transmission A gearless split torque hydromechanical transmission with regenerative braking and engine starting capabilities comprising two hydraulic pumps tied together by a one-way clutch.... | 11/27/1979 |
| 4128999 | Hydraulic torque converter with a lock-up clutch and an axially retractable reactor In a torque converter equipped with a fluid operated lock-up clutch to provide either a fluid or a rigid mechanical connection between an input and an output shaft, the reactor member is arranged for movement along the converter axis between a working and... | 12/12/1978 |
| 4098144 | Drive assembly with energy accumulator A drive assembly including a prime mover, a primary energy accumulator, such as a flywheel, and an output shaft. Power distribution means, such as a differential gear arrangement, is provided for connecting the output shaft to both the energy accumulator ... | 07/04/1978 |
| 4037409 | Gas turbine engine for vehicles A gas turbine engine for vehicles in which an infinitely variable transmission in the form of a hydraulic transmission is coupled to the engine. A flywheel stores and releases braking energy, and has a disengageable coupling connecting the flywheel with t... | 07/26/1977 |
| 4019404 | Power transmission A power transmission having both mechanical and hydraulic power paths to a simple planetary differential unit to provide a double hydro-hydromechanical transmission with a low-speed, high torque, hydrostatic drive range by causing counterrotation of two g... | 04/26/1977 |
| 4015482 | Control system for power train and auxiliary equipment driven from a common prime mover A control system for an engine driven power train having a variable torque absorption transmission mechanism typically including a torque converter, in conjunction with a hydraulic control circuit for the implement of an excavating-loading vehicle such as... | 04/05/1977 |
