Variable speed mechanism

Details Variable speed mechanism Variable speed mechanism

1993-06-25

1994-08-02

Bui, Thuy M.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

474 84, F16H 700

Patent

active

053341058

ABSTRACT:
A variable speed mechanism comprises a constant speed transmission set, a variable speed transmission set, a sun gear set comprising a first sun gear and a second sun gear, a locating member, two planetary gear sets, and a power source. The first sun gear is actuated to rotate at a constant speed by the constant speed transmission set. The rotating speed of the second sun gear 32 can be altered by adjusting the variable speed transmission set so as to cause the rotation of a power output shaft of the speed changing mechanism to accelerate, decelerate, reduce to zero, or reverse.

REFERENCES:
patent: 3728905 (1973-04-01), Fell et al.
patent: 4240368 (1980-12-01), Adams
patent: 4922727 (1990-05-01), Viegas

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