US 10,890,234 B2
Multi speed transmission
Michael C Sefcik, Linden, MI (US); Joe Dear, Canton, MI (US); and Ray Coger, Monroe, MI (US)
Assigned to Linamar Corporation, Guelph (CA)
Appl. No. 16/337,436
Filed by Linamar Corporation, Guelph (CA); Michael C Sefcik, Linden, MI (US); Joe Dear, Canton, MI (US); and Ray Coger, Monroe, MI (US)
PCT Filed Sep. 29, 2017, PCT No. PCT/US2017/054353
§ 371(c)(1), (2) Date Mar. 28, 2019,
PCT Pub. No. WO2018/064505, PCT Pub. Date Apr. 5, 2018.
Claims priority of provisional application 62/402,411, filed on Sep. 30, 2016.
Prior Publication US 2020/0032882 A1, Jan. 30, 2020
Int. Cl. F16H 3/66 (2006.01); F16H 48/10 (2012.01); F16H 48/11 (2012.01)
CPC F16H 3/663 (2013.01) [F16H 48/11 (2013.01); F16H 2048/106 (2013.01); F16H 2200/0034 (2013.01); F16H 2200/2007 (2013.01); F16H 2200/2035 (2013.01); F16H 2200/2097 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A multi speed transmission comprising:
a transmission input;
a transmission output;
a primary reduction gear set comprising a first sun gear configured as the transmission input, a first ring gear directly attached to ground, a first planetary carrier with a plurality of interconnected pinion gears meshing with the first sun gear and first ring gear;
a gear assembly comprising a step pinion planetary gear set having second and third sun gears, a second ring gear directly attached to ground, a second planetary carrier configured as the transmission output with a plurality of interconnected pinions meshing with the second and third sun gears and second ring gear; and
first and second input clutches driveably connected to the transmission input;
wherein the first sun gear configured as the transmission input and the second planetary carrier configured as the transmission output are spaced mutually along the same longitudinal axis.