Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Impeller-turbine type fluid circuit and mechanical path in...
Patent
1988-12-05
1990-06-12
Diehl, Dwight
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Impeller-turbine type fluid circuit and mechanical path in...
475 47, F16H 4708
Patent
active
049329286
ABSTRACT:
A continuously-variable transmission comprising at least two operatively interconnecting planetary gearsets that are interposed between a modified torque converter and a work load with the input power divided into two different input sources. A first input drive shaft engages the driven converter housing and delivers torque to the sun gears of the planetary gearsets and a coaxial hollow drive shaft engages a turbine member of the converter and delivers hydro-kinetic torque to drive the carrier of one of the planetary gearsets which is a mechanical torque/speed modulator used to control ring gears which are meshed with each planetary gearset. At least a second planetary gearset acts as a variable-ratio transmission that has its ring gear speed varied by the modulating ability of the other gearset.
REFERENCES:
patent: 2460081 (1949-01-01), Goodchild
patent: 2523619 (1950-09-01), Grebb
patent: 4213352 (1980-07-01), Crawford
patent: 4281564 (1981-08-01), Hill
patent: 4369672 (1983-01-01), Ohtsuka
patent: 4472984 (1984-09-01), Cook
patent: 4507985 (1985-04-01), Morimoto et al.
patent: 4825721 (1989-05-01), Gobriele
patent: 4833942 (1989-05-01), Whalen
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