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US 2011/0214521 A1Published application
Transmission for vehicles
AssigneeGM Global Technology Operations LLC
InventorsMarkus ROCKENBACH, Josef HAU
Life of this patent
Estimating the term…
Abstract
A transmission for a car has a first gearwheel group that includes, but is not limited to s a fixed gearwheel first gear on an input shaft and that is meshing with an idler first gear on a first layshaft. The transmission further includes, but is not limited to an idler reverse gear on a second layshaft, the idler reverse gear meshing with the idler first gear on the first layshaft, wherein gearwheels of a second gearwheel group, of a third gearwheel group, and of a fourth gearwheel group being arranged on the input shaft and on the first layshaft.
Claims20
A transmission for a vehicle, comprising:
- an input shaft actuated by a clutch assembly that is driven by an engine;
- a first layshaft and a second layshaft radially spaced apart from the input shaft and essentially parallel to the input shaft;
- a first pinion for the first layshaft configured to produce a driving torque;
- a second pinion of the second layshaft configured to produce the driving torque;
- an output shaft with an output gearwheel, the output gearwheel meshing with the first pinion and the second pinion;
- gearwheels arranged on the first layshaft, the second layshaft and the input shaft, the gearwheels comprising a first gearwheel group, a second gearwheel group, a third gearwheel group, a fourth gearwheel group, and a reverse gearwheel group,
- wherein each gearwheel group comprises at least one fixed wheel meshing with an idler, the idler having a coupling device for selectively connecting the idler to a respective shaft,
- wherein the first gearwheel group comprises a fixed gearwheel first gear on the input shaft, the fixed gearwheel first gear meshing with an idler first gear on the first layshaft,
- wherein the reverse gearwheel group comprising an idler reverse gear on the second layshaft, the idler reverse gear meshing with the idler first gear on the first layshaft (50), and
- wherein the gearwheels of the second gearwheel group, of the third gearwheel group, and of the fourth gearwheel group being arranged on the input shaft and on the first layshaft.
7 more elements
A power train assembly, comprising:
- a power source configured to generate a driving torque;
- and
- a transmission comprising:
- an input shaft actuated by a clutch assembly that is driven by the power source;
- a first layshaft and a second layshaft radially spaced apart from the input shaft and essentially parallel to the input shaft;
- a first pinion for the first layshaft configured to produce the driving torque;
- a second pinion of the second layshaft configured to produce the driving torque;
- an output shaft with an output gearwheel, the output gearwheel meshing with the first pinion and the second pinion;
- gearwheels arranged on the first layshaft, the second layshaft and the input shaft, the gearwheels comprising a first gearwheel group, a second gearwheel group, a third gearwheel group, a fourth gearwheel group, and a reverse gearwheel group,
- wherein each gearwheel group comprises at least one fixed wheel meshing with an idler, the idler having an operable coupling device for selectively connecting the idler to a respective shaft,
- wherein the first gearwheel group comprises a fixed gearwheel first gear on the input shaft, the fixed gearwheel first gear meshing with an idler first gear on the first layshaft,
- wherein the reverse gearwheel group comprising an idler reverse gear on the second layshaft, the idler reverse gear meshing with the idler first gear on the first layshaft (50), and
- wherein the gearwheels of the second gearwheel group, of the third gearwheel group, and of the fourth gearwheel group being arranged on the input shaft and on the first layshaft.
10 more elements
Dependencies are inferred from the claim text.