| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 475083000 | Pump and motor in series with planetary gearing | 15 |
| 20080234089 | DRIVE UNIT FOR CONTINUOUSLY VARIABLE ROTATIONAL SPEED CONTROL AND ITS USE - A drive unit ( | 09-25-2008 |
| 20080280718 | Power-splitting hydromechanical continously variable transmission - The invention relates to a power-splitting hydromechanical continuously variable transmission, particularly for motor vehicles, comprising an input shaft, which provides output to a summation gearbox mechanically on the one hand and via a hydrostatic pump unit, a volume control valve, and a hydraulic motor on the other hand, the summation gear, wherein the summation gearbox is a planetary gearbox, the gear elements of which are drivably connected at least to the input shaft, the hydraulic motor, and an output shaft. In order to achieve a transmission that is particularly advantageous from design and production points of view, the invention proposes to connect the hydrostatic pump unit by the one pump element to the input shaft and connect it mechanically by the other pump element to the one gear element of the summation gearbox | 11-13-2008 |
| 20080312022 | SIX-SPEED TRANSMISSION - One implementation of a six-speed transmission includes a first gearset including first and second planetary gearsets each having a number of teeth. The transmission also has a second gearset including a third planetary gearset operably associated with the first and second planetary gearsets. The third planetary gearset has an equal number of teeth with respect to one of the first and second planetary gearsets. The transmission also has a first plurality of shift elements operably associated with the first and second planetary gearsets, each of the first plurality of shift elements being movable between a released state and an applied state to selectively engage at least one of the first and second planetary gearsets. The transmission also has a second plurality of shift elements operably associated with the third planetary gearset, each of the second plurality of shift elements being movable between a released state and an applied state to selectively engage the third planetary gearset. The transmission also has a controller operably associated with the first plurality of shift elements and the second plurality of shift elements to selectively engage the first, second and third planetary gearsets. | 12-18-2008 |
| 20080318722 | Gear Train for Driving a Mixer Drum Mounted on a Vehicle - A gear for driving a drum of a ready-mix concrete truck comprises a driving motor ( | 12-25-2008 |
| 20100197439 | TRANSMISSION DEVICE HAVING A VARIATOR - A continuously variable transmission device comprising a variator and a secondary power splitting. For power splitting, a planetary gear set has a first shaft coupled to the transmission input, a second shaft of the gear set coupled a first shaft of the variator, and a third shaft of the gear set couples a second shaft of the variator. First and second shift elements are provided to switch between first and second gear ratio ranges. Via the variator, the gear ratio is continuously variable within the gear ratio range and the two gear ratio ranges overlap. To implement the first gear ratio range, the second shaft of the gear set is connected, via the first shift element, to the transmission output, and to implement the second gear ratio range, the third shaft of the planetary gear set is connected, via the second shift element, to the transmission output. | 08-05-2010 |
| 20100197440 | TRANSMISSION DEVICE FOR A VEHICLE, HAVING A VARIATOR - A transmission device ( | 08-05-2010 |
| 20100222172 | Power Transmission System of Hydraulically Driven Working Vehicle - A power transmission system of a hydraulically driven working vehicle comprises: a prime mover supported by a vehicle frame, the prime mover including a prime mover output shaft projecting in the fore-and-aft direction of the vehicle; a pump housing; a hydraulic pump disposed in the pump housing, the hydraulic pump including a pump shaft projecting from the pump housing in the fore-and-aft direction of the vehicle so as to be drivingly connected to the prime mover output shaft; a first hydraulic motor disposed outside the pump housing so as to be fluidly connected to the hydraulic pump; a transaxle supported by one of front and rear portions of the vehicle frame, the transaxle including a transaxle housing, a pair of axles disposed in the transaxle housing so as to be driven by the hydraulic motor, and a differential gear unit disposed in the transaxle housing so as to be drivingly interposed between the hydraulic motor and the pair of axles; a PTO shaft; and a working power train extracting a part of power transmitted from the prime mover output shaft to the pump shaft and transmitting the extracted power to the PTO shaft. | 09-02-2010 |
| 20100331131 | Hydraulic Pump Device for Work Vehicle - A hydraulic pump device for a work vehicle having a transmission case that houses a PTO shaft ( | 12-30-2010 |
| 20110015022 | SUPERPOSITION TRANSMISSION - The present invention relates to a superposition transmission in several variants and embodiments with hydrostatic-mechanical or electric-mechanical power splitting for the use in vehicles and work machines such as municipal vehicles, handling devices such as telehandlers or forklifts, wheel loaders, tractors and comparable apparatuses, in which an infinitely variable adjustment of the gear ratio is desired independent of the speed of the drive engine. The input shaft ( | 01-20-2011 |
| 20110300984 | CONTINUOUSLY VARIABLE TRANSMISSION FOR A HYDRAULIC MECHANISM IN HYBRID CARS WITH RECOVERED POWER-SPLIT ENERGY - A continuously variable transmission for a hydraulic mechanism in hybrid cars with recovered power-split energy mainly comprises a multi-function planet differential gear train pump and a hydraulic variable pump (motor) of through shaft. The planet differential gear train pump provides a hydraulic constant pump, and a planet gear system thereof provides a speed-adjustable function as well as a speed-collecting function. Thereby, the planet differential gear train pump of the present invention is used to substitute the conventional planet gear system and the hydraulic constant pump in the continuously variable transmission. A power input shaft or a power output shaft of the hydraulic variable pump and the planet differential gear train pump are coaxially connected for uniaxially arranging the continuously variable transmission with the hydraulic mechanism power-split energy. Whereby, the transmission of the present invention is able to not only provide the property of a continuously variable transmission but also transform the inertia kinetic energy of the car into hydraulic potential energy in the high pressure reservoir while the speed of the car is reduced and the car is to be stopped. When the car is started and accelerated, the hydraulic potential energy is transformed into mechanical energy via the planet differential gear train pump and the hydraulic variable pump in a motoring status so as to trigger the car. | 12-08-2011 |
| 20140018201 | POWER SPLIT GEARBOX - A hydrostatic mechanical power split transmission includes a housing, at least one first power branch having at least one hydraulic pump and at least one hydraulic motor, and at least one drive shaft provided with gear wheel elements, which is disposed inside the housing and can be directly or indirectly driven by at least one drive engine, in particular an internal combustion engine as a further power branch, the drive shaft being able to selectively act either directly or indirectly on the sun gear of a planetary gear system by way of at least one clutch, to be decoupled from the planetary gear system, wherein the planetary gear system can be switched to a state of constrained motion by way of further clutches as a function of the respective operating state of the power split transmission. | 01-16-2014 |
| 20140141917 | Motor Assembly for Final Drive - A final drive for a vehicle is disclosed. The final drive includes a motor assembly, a planetary gear train and a drive sprocket. The motor assembly includes a hydraulic motor, an output shaft, a housing, a thrust bearing, a brake and first, second and third chambers. The housing includes a supply port, a first passageway, a second passageway and a drain port. | 05-22-2014 |
| 20150051038 | Transmission - The invention concerns a transmission mounted in a housing between a turbine and a generator on top of a tower of a wind turbine, comprising a gearbox and in the gearbox a main gear mounted on a main gear shaft and a pinion that engages a set of gear teeth of the main gear. The pinion is mounted on a pinion shaft and the pinion shaft is coupled to a hydraulic pump mounted on the gearbox, a hydraulic motor drives the generator. In accordance with the invention the main gear shaft and the rotor shaft together form a common shaft and a main gear shaft bearing is mounted between the common shaft and the gearbox and at least two tension bars prevent the rotation of the gearbox and leave the gearbox free to move in linear directions. | 02-19-2015 |
| 20150337947 | BAFFLE FOR AUTOMOTIVE TRANSMISSION - A transmission in a vehicle includes a gearbox and a differential. Torque is transferred from an output of the gearbox to an input of the differential via a drive member. This transfers torque to enable the differential to distribute the torque amongst wheels of the vehicle. A transmission housing and a torque converter housing are mounted to one another to at least partially house the gearbox and the differential, respectively. A transmission fluid sump is provided between the housings where transmission fluid gathers. A fluid pump pressurizes the fluid and distributes it amongst working parts in the transmission. A baffle assembly partially contains the drive member and segregates the fluid sump from the drive member. One of the baffles in the assembly includes a lip engaging a portion of an outer flange of the pump to provide a seal between the fluid pump and components within the transmission. | 11-26-2015 |
| 20160053879 | PUMP CONTROL METHOD AND SYSTEM - A hydraulic hybrid vehicle | 02-25-2016 |
