Patent ID: 8359938

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 ) 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 ) being connected in a rotationally fixed manner to one 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 ) 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) for 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 ); first and second drive output gear wheels ( 12 , 13 ) being respectively supported on one of the first and the second countershafts (w_v 1 , w_v 2 ) and engaging gearing of an output shaft (w_ab); a 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 ) being engagable; 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 ) on each of the first and the second countershafts (w_v 1 , w_v 2 ) and a fixed gear wheel ( 1 , 2 , 3 ) on one of the first and the second transmission input shafts (w_K 1 , w_K 2 ) such that, in each of the first, the second and the third dual gear planes ( 5 - 8 , 6 - 9 , 7 - 10 ) at least one of the idler gear wheels ( 5 , 6 , 7 , 8 , 9 , 10 ) is utilized for engaging at least two gears, such that at least one winding-path gear is engagable, via the shifting device (I, K) by disengagement of an output coupling device (S_ab 1 , S_ab 2 ) associated with one of the first and the second drive output gear wheels ( 12 , 13 ).