| 摘要 |
<p>A power transmission system in a vehicle, where mechanical power transmission is utilized within one range of speed and hydrostatic power transmission within another range of speed and in which vehicle there is a joint engine (1) as a driving power source for both power transmissions. In the hydrostatic power transmission system of a vehicle or a working machine there are at least two hydraulic pumps and at least two hydraulic motors in order to produce two or more ranges of slowest speed and the highest range of speed of the vehicle is effected by coupling the engine to the driving wheels of the vehicle by means of mechanical power transmission.</p> |
