Differential assembly for vehicles

Patent No. 9,638,305

Issued: May 2, 2017
Filed: March 12, 2014
PCT Filed: March 12, 2014
PCT No.: PCT/US2014/023993
371(c)(1),(2),(4) Date: September 11, 2015
PCT Pub. No.: WO2014/164977
PCT Pub. Date: October 09, 2014
Term Extension:  days

Inventors: Wrona; Matthew Robert (Fairport, NY), Xu; Qin (West Henrietta, NY) 
Assignee: MANA INDUSTRIES, INC. (Fairport, NY)


A differential assembly includes a differential housing, two side gears, at least one output hub, and at least one pinion gear assembly. When a torque input is provided to the first side gear, eccentric contact surfaces on the first side gear and the output hub contact under compression forces, and compression forces between the outer cylindrical surface of the first side gear and an inner cylindrical surface of the differential housing and between the outer cylindrical surface of the first output hub and the inner cylindrical surface of the differential housing cause frictional forces between the differential housing and the first side gear and between the differential housing and the first output hub to provide a torque bias to the differential assembly. In some embodiments, the differential housing includes a second output hub and eccentric contact surfaces on the second side gear and the second output hub.

Reference to Related Applications

This application claims one or more inventions which were disclosed in Provisional Application No. 61/778,434, filed Mar. 13, 2013, entitled "DIFFERENTIAL ASSEMBLY FOR VEHICLES". The benefit under 35 USC .sctn.119(e) of the United States provisional application is hereby claimed, and the aforementioned application is hereby incorporated herein by reference.


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