US Patent 8485056 Dual clutch multi-speed transmission

A transmission includes an input member, an output transfer gear, first and second shaft members, a countershaft or layshaft, a reverse shaft member, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output transfer gear.