Patent ID: 8230751

Claim:
A double clutch transmission comprising: first and second clutches (K 1 , K 2 ) each comprising an input side connected to a drive shaft (w_an) and an output side connected to one of a first and a second transmission input shaft (w_K 1 , w_K 2 ) that are arranged coaxially with one another; at least first and second countershafts (w_v 1 , w_v 2 ) rotatably supporting a plurality of idler gear wheels ( 5 , 6 , 7 , 8 , 9 , 10 ); a plurality of fixed gear wheels ( 1 , 2 , 3 , 4 ) being connected, in a rotationally fixed manner, to each of the first and second transmission input shafts (w_K 1 , w_K 2 ) and each of the plurality of fixed gear wheels ( 1 , 2 , 3 , 4 ) engaging at least one of the idler gear wheels ( 5 , 6 , 7 , 8 , 9 , 10 ); a plurality of coupling devices (A, B, C, D, E, F) for each coupling one of the idler gear wheels ( 5 , 6 , 7 , 8 , 9 , 10 ), in a rotationally fixed manner, to one of the first and the second countershafts (w_v 1 , w_v 2 ); a drive output gear ( 12 , 13 ) being supported on a respective one of the first and the second countershafts (w_v 1 , w_v 2 ) and engaging gearing of an output shaft (w_ab); at least one shifting device (I, K) for coupling two of the gear wheels such that a plurality of power shift forward drive gears ( 1 , 2 , 3 , 4 , 5 , 6 ) and at least one reverse drive gear (R 1 , R 2 , R 3 ) are engagable; first and second dual gear planes ( 5 - 8 , 6 - 9 , 5 - 8 , 7 - 10 ) comprising one idler gear wheel ( 5 , 6 , 7 , 8 , 9 , 10 ) of each of the first and the second countershafts (w_v 1 , w_v 2 ) and a fixed gearwheel ( 1 , 2 , 3 , 4 ) of one of the first and the second transmission input shafts (w_K 1 , w_K 2 ) such that in each of the first and the second dual gear planes ( 5 - 8 , 6 - 9 , 5 - 8 , 7 - 10 ) at least one of the idler gear wheels ( 5 , 6 , 7 , 8 , 9 , 10 ) of the first and the second countershafts (w_v 1 , w_v 2 ) is utilized for engaging at least two drive gears; and first and second single gear planes ( 6 - 2 , 3 - 9 ; 7 - 3 , 4 - 10 ) comprising one idler gear wheel ( 5 , 8 ; 6 , 9 ; 7 , 10 ) of one of the first and the second countershafts (w_v 1 , w_v 2 ) and a fixed gear wheel ( 1 , 2 , 3 , 4 ) of one of the first and the second transmission input shafts (w_K 1 , w_K 2 ) such that at least one winding-path gear is engagable via the at least one shifting device (I, K).