Machine element or mechanism – Gearing – Interchangeably locked
Patent
1981-12-23
1984-08-07
Staab, Lawrence J.
Machine element or mechanism
Gearing
Interchangeably locked
74331, 74356, 192 486, 192 4892, 192 488, F16H 308, F16D 4704, F16D 2102
Patent
active
044636210
ABSTRACT:
An automatic transmission has two countershafts, two clutches, an output shaft, two synchronizers, two input shafts adapted to be driven from the crankshaft of an engine through either of the two clutches and a one-way clutch that connects the first gear to the output shaft. The overrunning clutch is continuously driven but is easily overrun when higher gear ratios than the first ratio are selected. Changes of gear ratio result upon alternate engagement and disengagement of the friction clutches. Synchronizer clutches engage the next higher or lower speed ratio than the ratio in which the transmission instantaneously operates.
REFERENCES:
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patent: 2386540 (1945-10-01), Campodonico
patent: 2386541 (1945-10-01), Campodonico
patent: 2403378 (1946-07-01), Kilpela
patent: 2466318 (1949-04-01), Kohr
patent: 2599801 (1952-06-01), Youngren et al.
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patent: 2644340 (1953-07-01), Youngren et al.
patent: 2654261 (1953-10-01), Youngren et al.
patent: 4106364 (1978-08-01), Zenker et al.
SAE Paper No. 810104, "A Fully Automatic Vehicle Transmission Using a Layshaft Type Gear Box", by Harry Webster, Feb. 23-27, 1981.
Ford Motor Company
Harrington Donald J.
McKenzie Frank G.
Staab Lawrence J.
Wojciechowski Bruce F.
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