| 摘要 |
<p>1. A power transmission with a continuously variable transmission ratio and a constant transmission ratio, in particular for an energy-economic motor vehicle, comprising an input clutch device and comprising on the one hand a variation means (11) essentially formed by a primary shaft (6) and a secondary shaft (14), said shafts carrying power transmission and variation devices, and on the other hand a direct constant-ratio connection permitting short-circuiting of the variation means (11) by means of an output clutch (19) disposed on a drive pinion shaft (23), said outpur clutch receiving the movement either by way of the variation means (11) and a single pair of pinions (16 and 17) or by a direct connection, characterised in that said output clutch is a dog clutch device (19) which is fixed with respect to said shaft (18) of the drive pinion (23), the direct connection is formed by a single pair of pinions (7 and 8) and a reverse gear is obtained by the connection by the variation means (11) by means of a pinion (15) which is fixed with respect to the secondary shaft (14) of the variation means, the pinion (22) which is fixed with respect to the dog clutch (19) and an intermediate pinion (21) mounted on a shaft (20).</p> |
