Planetary gear transmission systems or components – Nonplanetary variable speed or direction transmission... – Nonplanetary transmission is belt or chain gearing
Patent
1990-03-21
1991-10-08
Braun, Leslie A.
Planetary gear transmission systems or components
Nonplanetary variable speed or direction transmission...
Nonplanetary transmission is belt or chain gearing
475207, 475210, F16H 926, F16H 3700, F16H 3706
Patent
active
050550942
ABSTRACT:
A continuously variable transmission has a continuously variable unit in the form of a variable belt drive and a pair of interconnected planetary gear sets arranged in differential drive relation between the transmission input shaft and the transmission output shaft. One of the planetary gear sets is connected with the input shaft, the output shaft and the output shaft of the belt drive. The other planetary gear set is connected with the input shaft, the output shaft and the input shaft of the belt drive. The overall transmission ratio is controlled between limits established in the continuously variable unit. The ratio is varied within a continuously variable range by varying the belt ratio.
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Braun Leslie A.
General Motors Corporation
Henn David E.
Scherer Donald F.
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