Planetary gear transmission

Details Planetary gear transmission Planetary gear transmission

1998-10-27

1999-09-14

Marmor, Charles A.

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475281, 475284, 74764, F16H 344

Patent

active

059514329

ABSTRACT:
A planetary gearing arrangement has a compound planetary gear set and a simple planetary gear set. The planetary gear sets are continuously interconnected at the sun gear members and are interconnectable through the selective engagement of two proportioning clutches which change the interaction of the gear sets. A single member, a ring gear, is continuously connected to an output shaft. The arrangement also includes two input clutches and two brakes which in combination with the proportioning clutches permit the establishment of five forward ratios and one reverse ratio. Two of the forward ratios are underdrives and two of the ratios are overdrives. All of the forward ratio interchanges, the neutral to forward ratio change and the neutral to reverse ratio change are of the single transition type.

REFERENCES:
patent: 5194055 (1993-03-01), Oshidari
patent: 5879264 (1999-03-01), Raghavan et al.

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