Variable biasing differential

Details Variable biasing differential Variable biasing differential

2006-04-03

2009-06-16

Estremsky, Sherry (Department: 3681)

Planetary gear transmission systems or components

Differential planetary gearing

With additional gearset between differential output and load

C475S175000, C475S201000, C475S221000, C475S249000

Reexamination Certificate

active

07547265

ABSTRACT:
A variable biasing differential provides an adjustable torque bias between two outputs. An input shaft provides drive torque to a carrier which receives a plurality of stub shafts and a like plurality of planet gears. A first set of planet gears drives a first sun gear and first output and a second set of planet gears, which, in turn, drives additional planet gears which drive a second sun gear and second output. Secured to both ends of the carrier are first and second ring gears which each mesh with an eccentric gear which in turn includes an eccentric second ring gear which meshes with an internal gear disposed about the first and second outputs. These gears are coupled to respective first and second friction clutches which can be independently activated to adjust the torque bias of the differential.

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