Clutch device for automatic transmission

Details Clutch device for automatic transmission Clutch device for automatic transmission

1997-01-09

1997-10-28

Pitts, Andrea L.

192 clutches and power-stop control

Clutches

Operators

192106F, F16D 2512

Patent

active

056809190

ABSTRACT:
A clutch device for automatic transmission comprises a rotatable high clutch drum, a ring-like piston movably fit in the high clutch drum in the axial direction, and a drift-on ball which is inserted in a staged through-hole penetrating the piston in its axial direction and is able to interrupt and communicate with the through-hole by movements thereof in the axial direction. An oil supplying and discharging port which is able to supply oil into an oil chamber partitioned by the high clutch drum and piston is formed at inner circumference of the high clutch drum. A groove which causes the oil supplying and discharging port of the high clutch drum and the through-hole to communicate with each other through a space between each inner circumference of the piston and the high clutch drum is formed at the oil chamber side of the piston.

REFERENCES:
patent: 2740512 (1956-04-01), Fischer
patent: 3647037 (1972-03-01), Toma
patent: 3724626 (1973-04-01), Clauss, Jr. et al.
patent: 3974743 (1976-08-01), Ivey
patent: 4509627 (1985-04-01), Kawamoto
patent: 4840261 (1989-06-01), Oshidari et al.
patent: 5226517 (1993-07-01), Grochowski

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