Two-speed automatic transmission

Details Two-speed automatic transmission Two-speed automatic transmission

1990-03-23

1991-04-30

Diehl, Dwight

Planetary gear transmission systems or components

Condition responsive control

Centrifugally controlled clutch or brake

475259, 475324, F16H 344

Patent

active

050114646

ABSTRACT:
A two-speed centrifugally shifted automatic transmission provides an overdrive output shaft rotational speed that may be three times the rotational speed of the input shaft (12). A shift point at a partial speed may provide a direct drive through an overrunning clutch (33). A spline mounted shift engagement ring (46) is adapted to slide axially within housing (10) to restrain planet carrier ring (36) from rotating at start-up. After reaching a predetermined input shaft rotational speed, the shift engagement ring (46) moves to its extreme left position (FIG. 1), thereby allowing the planet carrier ring (36) to rotate and the rotational speed of the output shaft (14) to be driven by the overrunning clutch (33).

REFERENCES:
patent: 1192704 (1916-07-01), Stobe
patent: 1621915 (1927-03-01), Weston
patent: 1670438 (1928-05-01), Coleman
patent: 1969661 (1934-08-01), Nardone
patent: 2022689 (1935-12-01), Rainsford
patent: 2051187 (1936-08-01), Strigl
patent: 2097011 (1937-10-01), Athimon
patent: 2167953 (1939-08-01), Lafleche
patent: 2263707 (1941-11-01), Strigl
patent: 2348716 (1944-05-01), Banker
patent: 3545305 (1970-12-01), Friend
patent: 3702084 (1972-11-01), Kepple et al.
patent: 4412460 (1983-11-01), Barthelemy
patent: 4862770 (1989-09-01), Smith

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