Lube assembly for a transmission friction device

Details Lube assembly for a transmission friction device Lube assembly for a transmission friction device

1995-03-17

1996-11-26

Pitts, Andrea L.

192 clutches and power-stop control

Elements

Lubricating, insulating, or cooling

192 7012, 192 85AA, F16D 1374

Patent

active

055775888

ABSTRACT:
A selectively engageable friction device, such as a clutch or brake, requires a supply of cooling fluid during engagement. The friction device is engaged by fluid directed to a piston through a passage in a shaft. A stepped diameter tube is slidably disposed in the shaft and is movable therein by fluid pressure to control the flow of lubrication and cooling fluid which is directed to the friction device during engagement and to prevent distribution of lubrication and cooling fluid when the device is disengaged.

REFERENCES:
patent: 1974740 (1934-09-01), Gehres
patent: 2968372 (1961-01-01), Kern
patent: 3139908 (1964-07-01), Strader
patent: 3391767 (1968-07-01), Stow
patent: 4061207 (1977-12-01), Ahlen
patent: 4270647 (1981-06-01), Leber
patent: 4899861 (1990-02-01), Cummings, III
patent: 5337871 (1994-08-01), Testerman
patent: 5469943 (1995-11-01), Hill et al.

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