Automatic gearbox comprises primary and secondary shafts with primary and secondary pinions with input clutch connected to primary shaft and torque distribution clutch connected to secondary shaft

摘要

The gearbox comprises a primary shaft (12) and primary pinions (1.1,2.1,3.1,4.1,5.1) and a secondary shaft with secondary pinions (1.2,2.2,3.2,4.2,5.2). There is an input clutch (8) connected to primary shaft at one end of the box and a torque distribution clutch (7) connected to the secondary shaft at the opposite end of the box. An internal shaft (13) extends through the input clutch to the engine output shaft. The primary pinion (5.1) with the highest ratio is fixed to the internal shaft and drives a hydraulic pump (14).