| 摘要 |
Seven-gear gearbox for a motorcar double clutch transmission The gearbox comprises: a first inner input shaft ( 10 ) which carries driving gearwheels ( 21, 23, 27 ) associated to the odd gears (I, III, V, VII) and fast for rotation therewith; a second outer input shaft ( 12 ) which is coaxial with the first and carries driving gearwheels ( 22, 24 ) associated to the even gears (II, IV, VI) and to the reverse gear (R) and fast for rotation therewith; and first and second output shafts ( 14, 16 ) carrying idle driven gearwheels ( 31 - 38 ). A first driving gearwheel ( 21 ) meshes only with the driven gearwheel ( 31 ) of first gear (I); a second driving gearwheel ( 23 ) meshes both with the driven gearwheel ( 33 ) of third gear (III) and with the driven gearwheel ( 35 ) of fifth gear (V); a third driving gearwheel ( 27 ) meshes only with the driven gearwheel ( 37 ) of seventh gear (VII); a fourth driving gearwheel ( 24 ) meshes both with the driven gearwheel ( 34 ) of fourth gear (IV) and with the driven gearwheel ( 36 ) of sixth gear (VI); and a fifth driving gearwheel ( 22 ) meshes with the driven gearwheel ( 32 ) of second gear (II) and, via this latter, with the driven gearwheel ( 38 ) of reverse gear (R).
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