Patent ID: 7353724
Filing Date: 2008-04-08
Classification: F16H,Y10T

Abstract:
1. A multi-speed transmission comprising: an input shaft; an output shaft; a first countershaft; a direct drive torque-transmitting mechanism selectively engagable for transferring torque from said input shaft to said output shaft; a first output gear set having co-planar intermeshing gears and a second output gear set having co-planar intermeshing gears axially-spaced from said first output gear set; wherein each of set first and second output gear sets has a first gear and a second gear intermeshing therewith, one of said first and second gears being connected for common rotation with one of said output shaft and said first countershaft and the other of said first and second gears being connected for rotation about the other of said output shaft and said first countershaft; a first output torque-transmitting mechanism selectively engageable to connect said gear of said first output gear set that is connected for rotation about said respective shaft with said respective shaft for common rotation therewith; and a second output torque-transmitting mechanism selectively engageable to connect said gear of said second output gear set that is connected for rotation about said respective shaft for common rotation therewith; wherein said first output torque-transmitting mechanism is engaged during underdrive gear ratios and said second output torque-transmitting mechanism is engaged during overdrive gear ratios.