| 摘要 |
<p>1. A transmission assembly for a vehicle having two driving axles, connecting a tubular driving shaft, in particular an output shaft (3) of a transverse vehicle engine-drive unit (G), on one hand to two receiving shafts (4, 5) aligned coaxially with the driving shaft (3) and, in particular, respectively connected to the two wheels of a first axle of the vehicle, on the other hand, to a tubular receiving shaft (6) surrounding one of the aligned shafts (4, 5), and connected in particular by a couple of bevel gears (8) to a longitudinal shaft (7) for driving the wheels of a second axle of the vehicle, this assembly comprising a first speed-reducing planet gear train (10, 30) having two ratios connecting the driving shaft (3) to the planet gear carrier (11) of a second torque-distributing train (12, 31) whose sun gear (13) and ring gear (14, 39) are respectively connected, one to the tubular receiving shaft (6) and the other to said aligned shafts (4, 5) through a third planet gear train (17, 32) performing the function of a differential, characterised in that, as the three trains (10, 12, 17; 30, 31, 32) are flat and have cylindrical gears and the tubular receiving shaft (6) surrounds the driving tubular shaft (3), the speed-reducing train (10, 30) is axially interposed between the other two trains (12, 17; 31, 32) whose ring gears (14, 16; 39, 40) are coupled, or are capable of being coupled, by a tubular strut (15, 38) surrounding the speed-reducing train (10, 30).</p> |
