Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid controlled mechanical clutch or brake
Patent
1991-08-28
1993-02-16
Wright, Dirk
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid controlled mechanical clutch or brake
475146, 192 85AA, 192 4892, F16H 362
Patent
active
051866935
ABSTRACT:
An automatic transmission includes: a connection member including an outer cylinder and an inner cylinder and defining a first annular space; a first annular piston arranged in the first annular space and defining a second annular space together with the inner cylinder; a second annular piston arranged in the second annular space; a spring retainer mounted on the inner cylinder in opposition to the second annular piston; a spring interposed, between the spring retainer and the second annular piston; a first clutch adapted to come into and out of engagement with a sun gear by the actuation of the first annular piston 72; a second clutch adapted to come into and out of engagement with an input shaft by the actuation of the second annular piston and left disengaged during forward running; a one-way clutch arranged adjacent to the first clutch and adapted to come into and out of engagement with the sun gear; and a brake interposed between the outer cylinder and the transmission casing. The one-way clutch has its outer race fixed to a flange, which is splined to the outer cylinder, and its inner race fixed to the flange of the first clutch and splined to the sun gear.
REFERENCES:
patent: 3747730 (1973-07-01), Hause
patent: 4237749 (1980-12-01), Koivunen
patent: 4747323 (1988-05-01), Kinichi et al.
patent: 4836052 (1989-06-01), Iwanaga et al.
patent: 4971185 (1990-11-01), Hayakawa et al.
Hayakawa Yochi
Kato Naoji
Nishida Masaaki
Aisin Aw Co. Ltd.
Wright Dirk
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