MULTIPLE RATIO HYDROKINETIC SPLIT TORQUE TRANSMISSION

摘要

A multiple ratio power transmission mechanism having planetary gear elements controlled by friction clutches and brakes and having two torque input gear elements, a hydrokinetic torque converter disposed in the torque delivery path for each input gear element and a torque splitting gear unit disposed between the torque input side of the hydrokinetic converter and the other of said torque input gear elements, wherein provision is made for selecting alternately one of the two torque input gear elements whereby the torque delivery path during operation in the higher speed ratios is partly mechanical and partly hydrokinetic and wherein the torque delivery path during operation in the lowest speed ratio is fully hydrokinetic.