Brake and clutch control system

Details Brake and clutch control system Brake and clutch control system

1996-01-31

1997-10-28

Lorence, Richard M.

192 clutches and power-stop control

Clutch and brake

192 18A, 192109F, 60436, 60494, F16D 6704

Patent

active

056809158

ABSTRACT:
A press includes a drive system which includes a brake and a clutch operated by fluid pressure. The brake and clutch control the movement of a crankshaft in relation to a flywheel. A unique control system supplies the pressurized fluid for operation of the brake and clutch. The unique control system includes a pressure relief valve for defining a maximum fluid pressure and a plurality of valve modules which each define a specific fluid pressure. Each valve module is selectively movable between a relief condition and a blocked condition. Thus, by selectively operating the valve modules, it is possible to select the fluid pressure being supplied to the brake and clutch.

REFERENCES:
patent: 2636581 (1953-04-01), Bitler
patent: 3135289 (1964-06-01), Jordan
patent: 3602135 (1971-08-01), Monnin
patent: 3730313 (1973-05-01), Luenser
patent: 3833100 (1974-09-01), Aschauer
patent: 4456109 (1984-06-01), Bottomley et al.
patent: 4580674 (1986-04-01), Weber

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