Machine element or mechanism – Elements – Gear casings
Patent
1974-09-16
1976-07-20
Wyche, Benjamin W.
Machine element or mechanism
Elements
Gear casings
747205, 74786, 74868, F16H 4704, F16H 3706, F16H 5710
Patent
active
039699579
ABSTRACT:
A vehicle transmission employs a pair of coaxial input shafts, one driven at fixed ratio and the other driven at an infinitely variable ratio through a hydrostatic transmission which relatively reverses direction of rotation. A single input-dual input planetary gear assembly couples the coaxial input shafts to an output shaft. The planetary gear assembly is made up of a reverse and low forward speed planetary gear set and a high forward speed planetary gear set connected together to provide a four element planetary gear assembly synchronously shiftable between low and high ranges and which provides torque multiplication throughout the speed range and produces the same direction of rotation of all four elements at substantially or at the same speed when operating at the maximum forward speed condition.
REFERENCES:
patent: 2960825 (1960-11-01), Samjetro et al.
patent: 3595102 (1971-07-01), Ohya
patent: 3597998 (1971-08-01), Ebert
patent: 3735646 (1973-05-01), Roberts
patent: 3748924 (1973-07-01), Cross et al.
patent: 3866490 (1975-02-01), Orshansky, Jr.
patent: R27307 (1972-03-01), DeLalio
Chandler Lance W.
Wyche Benjamin W.
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