Patent ID: 8156836
Filing Date: 2012-04-17
Classification: F16H,Y10T

Abstract:
1. A gearbox for a motor vehicle, comprising: a plurality of gearwheels comprising: a first set of gearwheels, a second set of gearwheels, a third set of gearwheels comprising a first gearwheel rigidly coupled to a largest gearwheel, a fourth set of gearwheels, an output gearwheel and a reverse gearwheel; a coaxial first input shaft that carries the first set of gearwheels, and a coaxial second input shaft that carries the second set of gearwheels; a first layshaft that carries the third set of gearwheels and a first pinion that meshes with the output gearwheel, wherein the first layshaft is selectively drivable by the coaxial first input shaft and the coaxial second input shaft; a second layshaft that carries the fourth set of gearwheels and a second pinion that meshes with the output gearwheel, wherein the second layshaft is selectively drivable by the coaxial first input shaft and the coaxial second input shaft, and wherein each of the first set of gearwheels and the second set of gearwheels mesh with at least one gearwheel of the third set of gearwheels or the fourth set of gearwheels; and a third layshaft that carries the reverse gearwheel and a third pinion that meshes with the output gearwheel, wherein the third layshaft is selectively drivable by the coaxial first input shaft and the coaxial second input shaft, and wherein the reverse gearwheel meshes with the first gearwheel carried by the first layshaft.