Patent ID: 8393238

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