| 摘要 |
<p>A multi-speed rear wheel drive transmission (70) having synchronizers (102, 104, 106, 108) and a plurality of gears (80, 82, 78, 76, 74, 72) on the input shaft (71) provides for the elimination of neutral roll-over noise and optimization of common reduced synchronizers (102, 104, 106, 108). Gear face widths are also reduced along with shaft diameters to further optimize the transmission design. Towing restrictions are no longer required in vehicles utilizing this design as the input shaft (71) is not backdriven by the output shaft (86) and the transmission (70) is splash lubricated by the backdriven countershaft (100) connected to the output shaft (86). The input shaft (71) is coaxial with the output shaft (86) and may be connected to the output shaft (86) by synchronizer (102). The countershaft (100) is in continuous meshing contact with the output shaft (86) and the rotatable gears (80, 82, 72, 74, 76, 78) by plural gears (88, 87, 90, 92, 94, 96, 98) fixed for rotation with the countershaft (100).</p> |
