Multiple-power gear drive transmission and drive assembly includ

Details Multiple-power gear drive transmission and drive assembly includ Multiple-power gear drive transmission and drive assembly includ

1979-03-06

1982-02-02

Kee Chi, James

Machine element or mechanism

Elements

Gear casings

747205, 74740, 180165, F16H 4704, F16H 3706

Patent

active

043133517

ABSTRACT:
A multiple-power gear drive transmission comprising a planetary differential gear drive including a plurality of drive elements such as sun gear, web gear and internal gear. A gear drive input shaft is connected with at least one of the drive elements; a gear drive output shaft is connected with another of the drive elements; a first positive-displacement machine operable in both directions as pump or motor is coupled to a third of the drive elements for controlling the direction of rotation and speed of rotation thereof; and a second positive-displacement machine operable as a pump or motor is energy-transmissively coupled with the first positive-displacement machine. The planetary differential gear drive includes two of the sun gears which have different diameters; on web gear being arranged dual planetary gears, the gears thereof meshing with the sun gears and with an internal gear wherein the larger sun gear is connected with the gear drive input shaft. Shift couplings selectively connect the second positive-displacement machine in dependence upon the speed of rotation of the gear drive output shaft with either the gear drive output shaft or with the smaller sun gear.

REFERENCES:
patent: 3903756 (1975-09-01), Hamma
patent: 3969958 (1976-07-01), Miyao et al.
patent: 4098144 (1978-07-01), Besel et al.

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