Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1979-03-08
1981-08-04
Feldbaum, Ronald
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74677, 74687, 74789, 74790, 74768, F16H 3706
Patent
active
042815649
ABSTRACT:
A power train infinitely variable from substantially 1:1 ratio to a very high ratio, employing a pair of planetary gear assemblies, each including a sun gear, a ring gear and a planetary carrier having at least one planetary gear operatively connecting the associated ring and sun gears, the planetary gear assemblies having different gear ratios, both planetary assemblies having their sun gears rotatable by a driving member, a driven member operatively connected to the planetary carrier of the assembly of higher ratio, the ring gears being constructed for rotation as a unit, and the planetary carrier of the assembly of lower ratio being variably connectible with the driving member, whereby the overall ratio between driving and driven members is variable in dependence upon the relative speed of the driving member and the planetary carrier of the lower ratio assembly.
REFERENCES:
patent: 2409196 (1946-10-01), Cunningham
patent: 2834228 (1958-05-01), Place
patent: 2880627 (1959-04-01), Woestemeyer
patent: 2974543 (1961-03-01), Garrison
patent: 3096666 (1963-07-01), Christenson et al.
patent: 3313179 (1967-04-01), Flinn
patent: 3411382 (1968-11-01), Mori
patent: 3557635 (1971-01-01), Tuck
patent: 3915033 (1975-10-01), Polak
Feldbaum Ronald
Hill Gwendolyn K.
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