Planetary gear transmission systems or components – Differential planetary gearing – With universal joint in drive train
Reexamination Certificate
2006-05-02
2006-05-02
Marmoi, Charles A (Department: 3681)
Planetary gear transmission systems or components
Differential planetary gearing
With universal joint in drive train
C475S206000, C475S337000
Reexamination Certificate
active
07037231
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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Borg-Warner Inc.
Brinks Hofer Gilson & Lione
Dziegielewski Greg
Holmes Justin K.
Marmoi Charles A
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