Multi-stage transmission

Details Multi-stage transmission Multi-stage transmission

1997-02-13

1999-02-02

Wright, Dirk

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

475290, 475293, F16H 1508

Patent

active

058657037

ABSTRACT:
Multi-stage change of speed between an input shaft and an output shaft on the same axis in a casing is achieved by planetary gear systems provided in multi-stages on the same axis in the casing. Sun gears 4 of plural groups of the planetary gear systems, having different velocity ratios, are fixed to one shaft. Carriers of each group of the planetary gear systems are connected to the other shaft to rotate as one body. A braking device can brake an internal gear of each group of the planetary gear systems individually, thus causing only the planetary gear system of a desired velocity ratio to perform transmission of rotation.

REFERENCES:
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patent: 1405237 (1922-01-01), Linden et al.
patent: 1808539 (1931-06-01), Gessner
patent: 2759374 (1956-08-01), Bowman et al.
patent: 4621541 (1986-11-01), Takahashi
patent: 4627310 (1986-12-01), Coburn
patent: 4658673 (1987-04-01), Nerstad et al.
patent: 5123884 (1992-06-01), Kondoh et al.
patent: 5385514 (1995-01-01), Dawe
patent: 5397281 (1995-03-01), Forster

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