Patent ID: 7437963

Claim:
A power transmission comprising: a power input shaft; a power output shaft; a first and second transmission input shaft; means for connecting said first and second transmission input shaft with said power input shaft; a plurality of ratio gear members disposed in meshing relation to provide a plurality of ratio gear pairs selectively operable to provide an even gear ratio group having at least second, fourth and sixth, and reverse ratios and an odd gear ratio group having at least first, third, fifth, and seventh ratios; a countershaft rotatably supporting a plurality of said ratio gear members; a plurality of synchronizers selectively connecting said countershaft with individual ones of said ratio gear members to selectively establish gear ratios between said power input shaft and said power output shaft; and at least one synchronizer directly connecting said power input shaft with said power output shaft, and wherein a common housing will accommodate either: a single input clutch employed and said power input shaft connectible therewith, said first and second ratios are longitudinally adjacent and controlled by a first of said synchronizers, said third and fourth ratios are longitudinally adjacent and controlled by a second of said synchronizers, said fifth and sixth ratios are longitudinally adjacent and controlled by a third of said synchronizers, and said seventh ratio and said reverse ratio are adjacent and are controlled by a fourth of said synchronizers, or dual input clutches employed to individually connect said power input shaft with said first and second transmission input shafts, pairs of said even ratio group are arranged to be longitudinally adjacent and pairs of said odd ratio group are arranged to be longitudinally adjacent with said first and third ratios controlled by a first of said synchronizers, said second and reverse ratios are adjacent and controlled by a second of said synchronizers, said fifth and seventh ratios are adjacent and controlled by a third of said synchronizers, said fourth and sixth ratios are adjacent and controlled by a fourth of said synchronizers.