Coolant flow control for a clutch

Details Coolant flow control for a clutch Coolant flow control for a clutch

1992-06-17

1993-07-06

Bonck, Rodney H.

192 clutches and power-stop control

Elements

Lubricating, insulating, or cooling

F16D 2512, F16D 1374

Patent

active

052245780

ABSTRACT:
The cooling of a hydraulically-operated wet clutch with coolant is primarily required during the slippage phase when the linings are heated by the slip, that is, when the torque transmitted by the clutch is less than the torque delivered by the engine. A coolant flow control is provided in which a coolant control valve is controlled in such a way that it interrupts the coolant flow to the clutch during operation with clutch engaged or disengaged and opens the coolant flow to the clutch during the engagement process of the clutch and, if required, for a predetermined time interval following the engagement process. However, the coolant control valve only opens the coolant flow to the clutch during the disengagement process if the slippage phase during disengagement lasts longer than a predetermined second time interval.

REFERENCES:
patent: 3351169 (1967-11-01), McIndoe
patent: 3995727 (1976-12-01), Ivey
patent: 4134483 (1979-01-01), Horsch
patent: 4147242 (1979-04-01), Fujioka
patent: 4157750 (1979-06-01), Horsch
patent: 4529073 (1985-07-01), Lewis
patent: 4540078 (1985-09-01), Wetrich
patent: 4557363 (1985-12-01), Golan
patent: 4640401 (1987-02-01), Koltookian
patent: 4644968 (1987-02-01), Chatterjea
patent: 4696383 (1987-09-01), Aoki et al.
patent: 4753332 (1988-06-01), Bieber et al.
patent: 4856628 (1989-08-01), Momiyama

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