Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Patent
1990-02-05
1992-01-28
Braun, Leslie A.
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
475284, 475288, F16H 5710
Patent
active
050839926
ABSTRACT:
An automatic transmission, in which a gear train including a plurality of planetary gear sets each composed of a sun gear, a carrier and a ring gear is accommodated in a casing so that the transmission of a drive force from an input shaft to an output shaft may be changed to set a plurality of gears. The automatic transmission includes a first brake connected to the carrier of the first one of the plural planetary gear sets for fixing the same to the casing; a first clutch arranged at the same side as is the connecting position of the carrier and the first brake means with respect to the first planetary gear set for connecting the carrier selectively to a rotating member such as the sun gear, carrier or ring gear of one of other planetary gear sets; and a second clutch arranged closer to the first planetary gear set than it is to the first clutch for connecting the sun gear of the first planetary gear set selectively to the rotating member.
REFERENCES:
patent: 3503282 (1970-03-01), Peterson
patent: 3811343 (1974-05-01), Mori et al.
patent: 3824876 (1974-07-01), Mori et al.
patent: 3863524 (1975-02-01), Mori et al.
patent: 3946623 (1976-03-01), Murakami et al.
patent: 4233861 (1980-11-01), Gaus et al.
patent: 4660439 (1987-04-01), Hiraiwa
patent: 4774856 (1988-10-01), Hiraiwa
Braun Leslie A.
Levi Benjamin
Toyota Jidosha & Kabushiki Kaisha
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