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US 6,159,123 AGranted
Gearbox with retarder
AssigneeZF Friedrichshafen AG
InventorGerhard Gumpoltsberger
Life of this patent
Estimating the term…
Abstract
The invention concerns a vehicle transmission for commercial vehicles having an additional continuous braking device wherein the additional continuous braking device, in addition to braking, is provided as a startup retarder (2) to start the vehicle.
Claims19
A vehicle transmission for a commercial vehicle having a continuous braking device which is used both as a starting retarder (2) for starting the vehicle as well as a continuously braking device for braking the vehicle;
- said starting retarder (2) comprising a rotor (6) and a planetary gear set (4);
- and
- the planetary gear set (4) comprising a ring gear (28), a plurality of planetary gears (22) and a sun gear, the ring gear (28) being connected to one of an input shaft (18) and an output shaft (16) and the ring gear (28) meshing with the plurality of planetary gears (22) supported by a planet carrier (14), and the planet carrier (14) being connected with the other of the output shaft (16) and the input shaft (18) of said planetary gear set (4);
- wherein the planetary gear set (4) is connectable with the rotor (6) of said starting retarder (2) via a lock-up clutch (10).
1 more element
Dependencies are inferred from the claim text.