Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Reexamination Certificate
2007-11-06
2007-11-06
Wright, Dirk (Department: 3681)
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
Reexamination Certificate
active
11221297
ABSTRACT:
Durability and power transmission efficiency are enhanced in a six-speed powertrain of an automatic transmission by a scheme that includes first to fourth planetary gear sets respectively having operational elements of a sun gear, a ring gear, and a carrier, in which the operational elements of the planetary gear sets are wisely interconnected therebetween or with an input shaft or the transmission case directly or via a clutch or a brake.
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Hyundai Motor Company
Morgan & Lewis & Bockius, LLP
Wright Dirk
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