Gear box for high power vehicles

Details Gear box for high power vehicles Gear box for high power vehicles

1984-11-13

1985-10-15

Leppink, James A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74753, 74760, F16H 3706

Patent

active

045466726

ABSTRACT:
A chain speed gearing device including a complex planetary train utilizing two sun wheels and two sets of planetary wheels of the Ravigneaux type, combined with a simple planetary train acting as a range doubler and driven by the planet wheel carrier shaft of the Ravigneaux train. The input motion is performed on the annulus of the Ravigneaux train for at least one of the speeds of the train by stoppage of the first sun wheel the output being taken from the planet wheel carrier of the Ravigneaux train. The speed of the direct drive is obtained by simultaneous input on one of the sun wheels of the Ravigneaux train and on the annulus, and by taking the output from the planet wheel another speed may be obtained by input on the second sun wheel and stoppage of the other sun wheel and by taking the output from the planet wheel carrier. Reverse motion is provided by input on the second sun wheels, stoppage of the annulus and output by the planet wheel carrier. The output shaft of the gear change speed device is coaxial with the sun wheels making it a particularly compact transmission.

REFERENCES:
patent: 2844975 (1958-07-01), Kelbel et al.
patent: 2847877 (1958-08-01), Ravigneaux
patent: 3859871 (1975-01-01), Uozumi et al.
patent: 3877320 (1975-04-01), Iijima
patent: 4089239 (1978-05-01), Murakami et al.
patent: 4164156 (1979-08-01), Reed
patent: 4228697 (1980-10-01), Miller

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