Geared-neutral continuously variable transmission

Details Geared-neutral continuously variable transmission Geared-neutral continuously variable transmission

1986-02-03

1987-02-24

Braun, Leslie

Machine element or mechanism

Elements

Gear casings

74681, 74687, 74690, F16H 3700

Patent

active

046448209

ABSTRACT:
A geared neutral continuously variable transmission has a variable ratio belt drive, a fixed ratio drive and a planetary gear set. The fixed ratio drive is selectively connectible with the transmission input by a friction clutch and with the planetary gear set by another friction clutch. A one-way clutch is disposed in parallel drive relation with the other friction clutch. When the fixed drive ratio is not transmitting torque, it can be effectively removed from the drive path to increase efficiency and reduce noise generation by disengaging the friction clutches.

REFERENCES:
patent: 3552232 (1971-01-01), Kress
patent: 3714846 (1973-02-01), Louis et al.
patent: 4290320 (1981-09-01), Abbott
patent: 4402237 (1983-09-01), Tomlinson
patent: 4553450 (1985-11-01), Gizard

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