Patent ID: 9695920
Date: 2017-07-04
CPC Classifications: B60K,B60Y,F16H

Claim:
1. A continuously variable transmission for an agricultural vehicle, the transmission comprising a transmission casing and transmission components, the components including: an input shaft drivable by a prime mover, first and second output drive shafts for connection to driven wheels of the vehicle, a mechanical transmission branch which transfers torque mechanically from the input shaft to the first and second output shafts, and a further transmission branch having at least one continuously variable motor, wherein the first and second output drive shafts are additionally driven by the at least one continuously variable motor so as to provide the first and second output drive shafts with continuously variable drive, and wherein the first and second output drive shafts are positioned with an offset relative to one another, wherein the further transmission branch is a hydrostatic branch, comprising a hydraulic pump driven by the input shaft, and the at least one continuously variable motor is a hydraulic motor driven by the pump, wherein the first output drive shaft is a first rear axle drive shaft, and wherein the second output drive shaft is a front axle drive shaft, the front axle drive shaft mechanically connected to the first rear axle drive shaft, wherein the at least one continuously variable hydraulic motor drives the front axle drive shaft so as to provide hydraulic drive to both the front and first rear axle drive shafts, wherein the transmission includes a second hydraulic motor hydraulically driven by the pump, wherein the second hydraulic motor drives the front axle drive shaft so as to provide hydraulic drive to both the front and first rear axle drive shafts, wherein the transmission includes a third output drive shaft, wherein the third output drive shaft is a second rear axle drive shaft, wherein the transmission includes a fourth output drive shaft defining a third rear axle drive shaft, and wherein the second hydraulic motor drives the third rear axle drive shaft so as to provide hydraulic drive to both the front and rear axle drive shafts.