A drive device is configured to drive a drive part. The drive device includes a fluid coupling, an electric motor, and a human-powered drive unit. The electric motor is configured to drive the drive part through the fluid coupling. The human-powered drive unit is configured to drive the drive part through the fluid coupling.

A transmission system has a housing including a wall and a gear support extending from the wall. The gear support has an outer surface and an inner surface defining a passage. The outer surface includes a seal receiving portion and a seal support axially spaced from the seal receiving portion. A seal is positioned about the gear support at the seal receiving portion. A sleeve is arranged on the outer surface of the gear support between the wall and the seal and a pump drive gear is mounted on the gear support and is supported by the sleeve. The pump drive gear includes an outer toothed surface, an inner surface, and a bushing arranged on the inner surface, the bushing extending about the sleeve.

A transmission system has a housing including a wall and a gear support extending from the wall. The gear support has an outer surface and an inner surface defining a passage. The outer surface includes a seal receiving portion and a seal support axially spaced from the seal receiving portion. A seal is positioned about the gear support at the seal receiving portion. A sleeve is arranged on the outer surface of the gear support between the wall and the seal and a pump drive gear is mounted on the gear support and is supported by the sleeve. The pump drive gear includes an outer toothed surface, an inner surface, and a bushing arranged on the inner surface, the bushing extending about the sleeve.

A multipurpose vehicle includes a stepless speed changer which is provided at one of lateral sides of a vehicle body with respect to an engine and a traveling transmission, an engine output shaft projected from the engine toward the stepless speed changer along a lateral direction of the vehicle body, a speed changer input shaft projected from the stepless speed changer toward the engine along the lateral direction of the vehicle body, and a first gear transmission mechanism provided between and across the engine output shaft and the speed changer input shaft and transmitting power of the engine output shaft to the speed changer input shaft. The multipurpose vehicle further has a PTO section provided at the side of the stepless speed changer with respect to the engine and forwardly of the stepless speed changer, the PTO section being operably connected to the engine output shaft via a second gear transmission mechanism.

A multipurpose vehicle includes a stepless speed changer which is provided at one of lateral sides of a vehicle body with respect to an engine and a traveling transmission, an engine output shaft projected from the engine toward the stepless speed changer along a lateral direction of the vehicle body, a speed changer input shaft projected from the stepless speed changer toward the engine along the lateral direction of the vehicle body, and a first gear transmission mechanism provided between and across the engine output shaft and the speed changer input shaft and transmitting power of the engine output shaft to the speed changer input shaft. The multipurpose vehicle further has a PTO section provided at the side of the stepless speed changer with respect to the engine and forwardly of the stepless speed changer, the PTO section being operably connected to the engine output shaft via a second gear transmission mechanism.

A transmission system has a housing including a wall and a gear support extending from the wall. The gear support has an outer surface and an inner surface defining a passage. The outer surface includes a seal receiving portion and a seal support axially spaced from the seal receiving portion. A seal is positioned about the gear support at the seal receiving portion. A sleeve is arranged on the outer surface of the gear support between the wall and the seal and a pump drive gear is mounted on the gear support and is supported by the sleeve. The pump drive gear includes an outer toothed surface, an inner surface, and a bushing arranged on the inner surface, the bushing extending about the sleeve.

A transmission system has a housing including a wall and a gear support extending from the wall. The gear support has an outer surface and an inner surface defining a passage. The outer surface includes a seal receiving portion and a seal support axially spaced from the seal receiving portion. A seal is positioned about the gear support at the seal receiving portion. A sleeve is arranged on the outer surface of the gear support between the wall and the seal and a pump drive gear is mounted on the gear support and is supported by the sleeve. The pump drive gear includes an outer toothed surface, an inner surface, and a bushing arranged on the inner surface, the bushing extending about the sleeve.

A vehicle comprises a hydromechanical automatic gearbox, an automatic gear shift unit (12) connected to a pressure fluid feeding pump (15). The gearbox comprises an input shaft (4) extending from an engine, gearing (23) extending to each gear step, wherein the gearing (23) is mounted on the input shaft (4) and is as a central gear (2), located on the input shaft (4), meshing with gear wheels (3) of different gear steps having different diameters mounted on the input shaft (4) of a single hydraulic torque converter (5) comprising a pump (6) and a turbine (8) located accordingly on the input (4) and output (7) shafts thereof forming a flow path of pressure fluid, each of the hydraulic torque converter (5) is electronically and hydraulically linked to the gear shift unit (12) of the vehicle.

A vehicle comprises a hydromechanical automatic gearbox, an automatic gear shift unit (12) connected to a pressure fluid feeding pump (15). The gearbox comprises an input shaft (4) extending from an engine, gearing (23) extending to each gear step, wherein the gearing (23) is mounted on the input shaft (4) and is as a central gear (2), located on the input shaft (4), meshing with gear wheels (3) of different gear steps having different diameters mounted on the input shaft (4) of a single hydraulic torque converter (5) comprising a pump (6) and a turbine (8) located accordingly on the input (4) and output (7) shafts thereof forming a flow path of pressure fluid, each of the hydraulic torque converter (5) is electronically and hydraulically linked to the gear shift unit (12) of the vehicle.

A powershifting multispeed reversing transmission includes a converter lockup clutch (31) arranged in a space (13) provided by arranging the forward-driving clutch (8) between the fixed gear (5) and the loose gear (7) on a forward-driving shaft, and the reverse-driving clutch (12) between the fixed gear (9) and the loose gear (11) a reverse-driving shaft.