| 摘要 |
PCT No. PCT/SE97/00397 Sec. 371 Date Sep. 2, 1998 Sec. 102(e) Date Sep. 2, 1998 PCT Filed Mar. 7, 1997 PCT Pub. No. WO97/33103 PCT Pub. Date Sep. 12, 1997A motor vehicle gearbox with two concentrically mounted input shafts, each driving an individual layshaft, having gears in engagement with gears on an output shaft. One layshaft has a central synchronizing device, by means of which the layshaft, which is driveably coupled to the momentarily non-driven input shaft, can be accelerated up to a rotational speed determined by the selected gear speed. The central synchronization device has a friction clutch and two synchronization gears, one of which is wider than the other and is lockable to the shaft with the aid of an engaging sleeve, so that driving torque can be transmitted via the synchronization gear. |
