Power transmission

Details Power transmission Power transmission

1995-05-03

1996-05-28

Wright, Dirk

Planetary gear transmission systems or components

Nonplanetary variable speed or direction transmission...

Plural power paths to planetary gearing

475219, F16H 344

Patent

active

055205879

ABSTRACT:
A multi-speed power transmission has two simple planetary gear sets interconnected to provide a planetary arrangement. The planetary arrangement has input members selectively connectible by a plurality of friction clutches to a prime mover through two distinct input ratio gear sets. One member of one of the simple planetary gear sets is selectively connectible with both input ratio gear sets via two of the clutches. Two additional clutches and two friction brakes are also included, whereby six forward speed ratios and two reverse speed ratios are attainable by engaging selective combinations of the clutches or clutch and brake.

REFERENCES:
patent: 3505905 (1970-04-01), Lepelletier
patent: 3929037 (1975-12-01), Marsch
patent: 4200006 (1980-04-01), Ehrlinger et al.
patent: 5013289 (1991-05-01), Van Maanen
patent: 5039305 (1991-08-01), Pierce

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