Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Patent
1991-06-27
1993-05-25
Lorence, Richard M.
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
475285, 475278, F16H 366
Patent
active
052135527
ABSTRACT:
A transmission has a pair of parallel shafts, a first shaft being connected through a torque converter with a vehicle engine and a second shaft carrying an output gear which is adapted to engage with a differential unit for the front wheel drive axle. The first shaft is provided with a first gear system thereon which includes one or more planetary gearsets, and the second shaft is provided with a second gear system thereon which includes a planetary gearset. A sun gear constituting the planetary gearset of the second gear system is integrally provided on the second shaft so that it can rotate together with the second shaft. A brake and a one-way clutch for controlling the action of this planetary gearset are provided between the second shaft and the case in such a manner that the brake can restrict the rotation of the second shaft, and that the one-way clutch can prohibit the rotation of the second shaft in one direction. The output gear is carried rotatably on the second shaft.
REFERENCES:
patent: 4304153 (1981-12-01), Moroto et al.
patent: 4594914 (1986-06-01), Kubo et al.
patent: 4624154 (1986-11-01), Kraft et al.
patent: 4774856 (1988-10-01), Hiraiwa
patent: 4836050 (1989-06-01), Numazawa et al.
patent: 4899621 (1990-02-01), Sakakibara
patent: 4916977 (1990-04-01), Aoki et al.
patent: 4924729 (1990-05-01), Sherman et al.
patent: 5059162 (1991-10-01), Otsuka
Japanese Abstract; 58-50347; Driving Device for Automobile Appl. No. 56-147436; 1981.
Lorence Richard M.
Mazda Motor Corporation
Ta Khoi Q.
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