Deere & Company

Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg

Stefan Raisch

David Mueller

Rainer Gugel

Christoph Eisenhardt

Frank Buhrke

Clayton P Neumann

Thomas George Ore

Matthias Lang

David Müller

Thomas Busold

Steffen Frassek

Josef Peters

David Suess

A transmission unit for a drivetrain of an agricultural towing vehicle including a first clutch, a second clutch, a first input shaft, a second input shaft, and an output shaft, wherein the first clutch is connected to the first input shaft and the second clutch is connected to the second input shaft. The transmission unit includes a plurality of gear sets for establishing a plurality of gear ratio stages. Each of the plurality of gear sets including a shift wheel rotatably mounted on the output shaft and a fixed wheel arranged on one of the first and second input shafts. The shift wheels of a second gear set and a third gear set of the plurality of gear sets can be selectively coupled to a shift element such that at least one winding path gear ratio stage can be formed via the second and the third gear sets.

Transmission unit, transmission arrangement, and agricultural towing vehicle

A transmission unit for a drivetrain of an agricultural towing vehicle includes a first clutch, a second clutch, a first input shaft, a second input shaft, and an output shaft, wherein the first clutch is connected to the first input shaft and the second clutch is connected to the second input shaft. The transmission includes a plurality of gear sets, wherein a second gear set has the fixed wheel on the first input shaft and the shift wheel on the output shaft, and a third gear set has the fixed wheel on the second input shaft and the shift wheel on the output shaft. The shift wheels of the second and third gear sets can be selectively coupled to a shift element such that at least one winding path gear ratio stage can be formed via the second and the third gear set.

A powershift transmission for a vehicle including an input shaft, a first intermediate shaft, a second intermediate shaft, and an output shaft. The input shaft includes a low driving gearwheel and a high driving gearwheel. The first intermediate shaft includes a low output gearwheel, a high output gearwheel, a first speed driving gearwheel, a second speed driving gearwheel, and a third speed driving gearwheel. The second intermediate shaft includes a first speed output gearwheel, a second speed output gearwheel, a third speed output gearwheel, a first-second group driving gearwheel, and a fourth speed output gearwheel. The output shaft includes a first-second group output gearwheel and a third group gearwheel.

Powershift transmission and vehicle

A shift group for a power shift transmission includes a summation unit having a planetary stage and a branching coupling assigned to the planetary stage. The summation unit is designed such that a mechanical power is transmitted from a first shaft to a second shaft. A first power path and a second power path are provided. In a first shifting state, the power is transmitted via the first or the second power path, and in a second shifting state, the power is transmitted via both the first and the second power paths. The shift group also includes individually shiftable transmission units each comprising a different transmission ratio, where a first transmission unit is disposed in the first power path and a second and a third transmission unit are disposed in the second power path.

Shift group for power shift transmission

An oil management system for a vehicle includes a differential housing, a transmission housing, a lubricant tank, a suction line, a lubricant pump, and an air suction pump. The transmission housing is connected to the differential housing in an air-tight manner, and a lubricant through-passage is defined between the transmission housing and the differential housing. The lubricant tank is provided in the differential housing and has a lubricant suction opening in a lower region. The lubricant pump conveys lubricant from the lubricant tank through the suction line and conducts the lubricant to the lubrication points in the differential housing and the transmission housing. The air suction pump pumps air from the lubricant tank into the transmission housing so that an excess air pressure is maintained in the transmission housing.

Oil management system

A transmission includes at least one primary transmission unit. The at least one primary transmission unit includes an input shaft having a first rotation axis, an output shaft having a second rotation axis, and a first layshaft having a third rotation axis. The input shaft, the output shaft, and the first layshaft are parallel. The first rotation axis lies in a first plane, the second rotation axis lies in a second plane, and the third rotation axis lies in a third plane. The first, the second, and the third planes are parallel. The first, the second and the third planes are orthogonal to a transmission central plane. The first rotation axis is disposed in the transmission central plane. The second plane is between the first and the third planes.

Transmission and agricultural or commercial vehicle having a transmission

A transmission lubrication system for a vehicle providing a continuous return flow of a lubricant. The transmission lubrication system includes a differential housing, a transmission housing, a lubricant tank, a suction line, a lubricant pump, and an air suction pump. The transmission housing is connected to the differential housing in an air-tight manner and a lubricant through-passage is provided between the transmission housing and the differential housing. The lubricant tank is provided in the differential housing and has a lubricant suction opening in a lower region. The lubricant pump conveys lubricant from the lubricant tank through the suction line and conducts the lubricant to the lubrication points in the differential housing and transmission housing. The air suction pump pumps air from the lubricant tank into the transmission housing so that an excess air pressure is maintained in the transmission housing.

Transmission lubrication system

A transmission subassembly for a working vehicle includes an engageable front wheel drive, a transmission housing, a clutch module, and a hydraulic module. The hydraulic module is received between the clutch module and the transmission housing.

Transmission subassembly, clutch module and vehicle

A shift transmission includes a first shaft, a second shaft arranged parallel to the first shaft, a gear group arranged at least partially on the first shaft, and a range group arranged at least partially on the second shaft. The gear group includes at least two gear units and the range group comprises at least three range units. Moreover, the gear group and the range group are configured such that a first and a second range unit in each case are shiftable with at least one gear unit indirectly by a third range unit.

Shift transmission

A power shift transmission for an agricultural machine includes a transmission housing, an input shaft unit and an output shaft. The input shaft unit and the output shaft extend at least partially inside the housing. The transmission includes an auxiliary shaft arranged offset but parallel between the input shaft unit and the output shaft inside the housing. The input shaft unit and the auxiliary shaft are connected together via an upstream group, and the auxiliary shaft and the output shaft are connected together via a downstream group. Each of the upstream and downstream shift groups includes gearwheel pairs which may be individually selectively coupled. The input shaft unit includes an outer shaft and an inner shaft which is arranged coaxially in the outer shaft and which is rotatable relative to the outer shaft. The inner shaft and the outer shaft are connected together via a layshaft.

Power shift transmission for agricultural machines

A transmission includes a first and a second shaft, a shift group arranged between the first and the second shafts, and a first and second power path. The shift group has at least two individually shiftable transmission units which differ from one another relative to the gear ratio thereof. A planetary stage is arranged between the shift group and the first shaft, and the planetary stage is configured such that a mechanical power introduced via the first shaft is transmittable to the second shaft via the second power path. At least one transmission unit of the shift group is assigned to each power path, and in at least one shifting state of the shift group, the flow of power runs via at least one respective transmission unit of the first and the second power path. The planetary stage includes at least three planetary units.

Transmission

A transmission includes a first shaft, and a second shaft, and a shifting group arranged between the first and second shafts. The shifting group is configured such that a mechanical power transmitted via the first shaft is transmitted to the second shaft via a first power path or a second power path which is coupled-in or coupled-out. The first power path is designed as a forward gear and the second power path is designed as a reverse gear. The forward gear includes a different transmission ratio in magnitude from the reverse gear. The shifting group includes a summation planetary stage, where the mechanical power of the power paths is transmitted thereby to the second shaft.

A gear mechanism includes at least a first and a second shaft, and at least a first and a second switching group arranged between the first and the second shafts. Each of the switching groups includes at least two transmission units which are individually switched and have a different transmission ratio. The first switching group is movable into active connection with the first shaft by a planetary stage which is constructed such that a mechanical power which is introduced via the first shaft is transmitted to the second shaft via a first or a second power path. At least one transmission unit of the first switching group is associated with each power path and in at least one switching state of the first switching group, the power flow extends over at least one transmission unit of the first and the second power path.

Gear mechanism, use of a gear mechanism and method for a gear mechanism

A transmission arrangement, particularly for an agricultural working vehicle, has a parallel-shift transmission and an input shaft, proceeding from which input shaft a drive power can be distributed via a first and a second shifting element to respective layshafts, and has a first and a second coaxially arranged output shaft, wherein the drive power can be transmitted by each of the layshafts to each of the output shafts as needed, and has a group-shift transmission with multiple shifting groups.

Transmission arrangement

A transmission arrangement, particularly for an agricultural working vehicle, having a parallel-shift transmission with a plurality of gear stages and an input shaft, proceeding from which a drive power can be distributed via a first and a second shifting element to respective layshafts, and an output shaft, wherein the drive power can be transmitted by each of the layshafts to the output shaft as needed, and having a group-shift transmission with a plurality of shifting groups.

Growing community of inventors

Vaihingenenz, Germany

Stefan Raisch