Eight speed planetary kinematic arrangement with two...

Details Eight speed planetary kinematic arrangement with two... Eight speed planetary kinematic arrangement with two...

2008-03-18

2010-11-30

Le, David D (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S282000, C475S288000

Reexamination Certificate

active

07841960

ABSTRACT:
A multiple speed power transmission comprising: four epicyclic gearing assemblies each having first, second, and third rotating elements with specified interconnections, an input shaft connected to one of the rotating elements, an output shaft, two rotating clutches releasably connecting the input shaft to rotating elements, and four brakes selectively holding rotating elements against rotation. Clutches and brakes are applied in combinations of two to produce eight forward ratios and one reverse ratio.

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