Fluid-friction clutch

Details Fluid-friction clutch Fluid-friction clutch

1982-09-30

1984-08-28

Cuchlinski, Jr., William A.

Internal-combustion engines

Cooling

Automatic coolant flow control

123 4146, 192 82T, F01P 502

Patent

active

044677472

ABSTRACT:
A fluid-friction clutch for a cooling fan of an internal combustion engine, the clutch being fitted on the water-pump shaft which drives the impeller of a water pump for the internal combustion engine and being controlled by an expansion-type thermostat element which is located in a longitudinal bore through the water-pump shaft. Cooling water of the internal combustion engine is applied directly to the expansion-type thermostat element, this water being continuously conveyed through the longitudinal bore in the water-pump shaft by utilizing the pressure-difference created in the cooling water by the impeller of the water pump. In order to cool both the working chamber of the fluid-friction clutch and the clutch-bearing, a cooling line is arranged inside the working chamber and connected to the cooling-water circulation inside the longitudinal bore through the water-pump shaft.

REFERENCES:
patent: 3568647 (1971-03-01), Adams
patent: 3661237 (1972-05-01), Thompson
patent: 3749214 (1973-07-01), Leichliter
patent: 3874347 (1975-04-01), Hovey

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