Patent ID: 8342048

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 ) being arranged coaxially with one another; at least first and second countershafts (w_vorgelege 1 , w_vorgelege 2 ) rotatably supporting toothed idler gearwheels ( 01 , 02 , 03 , 04 , 05 , 06 , 07 , 08 , 09 , 10 ); toothed fixed gearwheels ( 14 , 15 , 16 , 17 , 18 ) being connected in a rotationally fixed manner to one of the first and the second transmission input shafts (w_K 1 , w_K 2 ), and each of the toothed fixed gearwheels ( 14 , 15 , 16 , 17 , 18 ) engaging at least one of the idler gearwheels ( 01 , 02 , 03 , 04 , 05 , 06 , 07 , 08 , 09 , 10 ), a plurality of coupling devices (A-B, C, C-D, D-E, E, F-G, H) for coupling at least one of the idler gearwheels ( 01 , 02 , 03 , 04 , 05 , 06 , 07 , 08 , 09 , 10 ) in a rotationally fixed manner to one of the first and the second countershafts (w_vorgelege 1 , w_vorgelege 2 ); a first drive output gearwheel ( 11 ) being fixedly supported by the first countershaft (w_vorgelege 1 ) and meshing with teeth of a drive output shaft (w_ab); a second drive output gearwheel ( 12 ) being fixedly supported by the second countershaft (w_vorgelege 2 ) and meshing with the teeth of the drive output shaft (w_ab); at least one shifting element (L) for coupling the first and the second transmission input shafts (w_K 1 , w_K 2 ), such that at least eight shift-under-load forward gears ( 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ) and at least one reverse gear (R 1 , R 2 ) can be engaged; and first, second, third, fourth and fifth wheel planes ( 01 - 06 ; 02 - 07 ; 03 - 08 ; 04 - 09 , 04 - 17 ; 05 - 18 , 18 - 10 ) being arranged such that the shifting element (L), for coupling the first and the second transmission input shafts (w_K 1 , w_K 2 ), engages at least one shift-under-load winding gear.