Structure for automatic transmission

Details Structure for automatic transmission Structure for automatic transmission

1992-07-23

1993-08-03

Wright, Dirk

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

192 85AA, F16H 344

Patent

active

052324117

ABSTRACT:
A structure of an automatic transmission includes first and second clutches which are arranged radially so that one is surrounded by the other. This arrangement can reduce the size of the automatic transmission. For example, the first clutch has a first clutch drum splined to an input shaft of the transmission, a first clutch hub, and a first clutch pack between the first clutch drum and hub. The second clutch has a second clutch drum received in, and splined to, the first clutch drum, a second clutch hub, and a second clutch pack therebetween. The second clutch pack is surrounded by the first clutch pack. The second clutch further includes a piston which encloses the first clutch drum and which has a pushing portion on one side of the second clutch pack and a pressure receiving portion on the opposite side.

REFERENCES:
patent: 3730022 (1973-05-01), O'Mallen
patent: 3776066 (1973-12-01), Piret
patent: 4400998 (1983-08-01), Bookout et al.
patent: 4440282 (1984-04-01), Ishimaru et al.
patent: 4732253 (1988-03-01), Hiramatsu et al.
patent: 4753132 (1988-06-01), Sumiya et al.
patent: 4836052 (1989-06-01), Iwanaga et al.
patent: 4935872 (1990-06-01), Benford et al.
patent: 4994006 (1991-02-01), Kinoshita et al.
patent: 5029685 (1991-07-01), Takase et al.
"Nisan Repair Manual, Nissan Automatic Transaxle RL4F03A Type", p. A-2, May 1989.
Nissan Repair Manual (L4N71B and E4N71B), 1982, p. 7.
Toyota Repair Manual (A340E), 1985.
Toyota Repair Manual (A540H).
Jaguar XJ6 Repair Manual (ZF4HP-22), p. 44-2.

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