Continuously engaged geared automatic transmission with controll

Details Continuously engaged geared automatic transmission with controll Continuously engaged geared automatic transmission with controll

1992-06-23

1994-07-05

Braun, Leslie A.

Planetary gear transmission systems or components

Plural power paths to planetary gearing

Plural planetary units

475150, 475317, F16H 3706

Patent

active

053263340

ABSTRACT:
An automatic variable speed transmission with an input shaft, an input sun gear formed on the input shaft and a first and second carrier rotatably mounted on the input shaft with the second carrier terminating in an output shaft. First and second locking pins secure and interconnect the two carriers together to enable simultaneous rotation of the carriers. A low speed ring gear is rotatably mounted on the input shaft. A first differential gear is rotatably mounted on each first locking pin and each first differential gear is in mechanical communication with the input sun gear and the low speed ring gear. A reverse ring gear is rotatably mounted on the output shaft. A second differential gear is rotatably mounted on each second locking pin and each second differential gear is in mechanical communication with the reverse rotation ring gear and with a first differential gear. A low speed brake inhibits rotation of the low speed ring gear sufficient to stop the low speed ring gear from rotation causing the output shaft to rotate at a low speed. A reverse rotation brake inhibits rotation of the reverse rotation ring gear sufficient to stop the reverse rotation ring gear from rotation causing the output shaft to rotate in a direction opposite to that of the input shaft. An interlocking device locks the input shaft and the low speed ring gear together causing the output shaft and input shaft to rotate at the same speed.

REFERENCES:
patent: 4010653 (1977-03-01), Mekjian
patent: 4027552 (1977-06-01), Murakami et al.
patent: 5062823 (1991-11-01), Ra et al.
patent: 5141477 (1992-08-01), Oshidari
08/028,824 Mar. 10, 1993 Jonh-Oh Ra et al., (Claims-pp. 36-45).
08/028,824 Mar. 10, 1993 Jonh-Oh Ra et al., (Drawings-15 sheets).

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