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US 8,100,034 B2Granted
Group transmission for a motor vehicle
AssigneeDaimler AG
InventorCarsten Gitt
Life of this patent
Estimating the term…
Abstract
In a group transmission having a number of countershafts, wherein three input constants are provided on a transmission input shaft for driving a countershaft such that the group transmission is of very short construction, the transmission input shaft is connectable to an intermediate shaft for direct power transmission, with the countershaft being disconnectable in the direct gear in order to avoid drag losses.
Claims16
A group power transmission (79) for a motor vehicle, including an input shaft (14), an intermediate shaft (4) and a main shaft (23) arranged
- coaxially with respect to one another and in succession, one next to another
- so as to be offset with respect to and parallel to at least one countershaft (15), two shiftable loose wheels (drive wheels 21, 22) being mounted, as part of input constants (K1, K2), coaxially on the input shaft (14) and on the intermediate shaft (4), with said two input constants (K1, K2) being followed in the force flow by at least two gearwheel stages (G2, G1, GR) of a main group (16), which gearwheel stages (G2, G1, GR) comprise additional loose wheels (36, 37, 34) which are mounted coaxially on the main shaft (23) and which can be rotationally fixedly coupled thereto, with it being possible for the countershaft (15), in a direct gear, to be decoupled with regard to its rotational movement from the input shaft (14), the intermediate shaft (4) and the main shaft (23).
Dependencies are inferred from the claim text.