Planetary gear transmission systems or components – Differential planetary gearing – With additional gearset between differential output and load
Reexamination Certificate
2006-08-08
2006-08-08
Ho, Ha (Department: 3681)
Planetary gear transmission systems or components
Differential planetary gearing
With additional gearset between differential output and load
C475S152000, C475S231000, C475S249000
Reexamination Certificate
active
07086982
ABSTRACT:
A drive axle assembly includes first and second axleshafts connected to a pair of wheels and a drive mechanism operable to selectively couple a driven input shaft to one or both of the axleshafts. The drive mechanism includes a differential, a speed changing unit operably disposed between the differential assembly and the first and second axleshafts, and first and second mode clutches. The first mode clutch is operable to increase the rotary speed of the first axleshaft which, in turn, causes a corresponding decrease in the rotary speed of the second axleshaft. The second mode clutch is operable to increase the rotary speed of the second axleshaft so as to cause a decrease in the rotary speed of the first axleshaft. A control system controls actuation of both mode clutches.
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Harness & Dickey & Pierce P.L.C.
Ho Ha
Magna Powertrain USA, Inc.
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