Heating apparatus for vehicle

Details Heating apparatus for vehicle Heating apparatus for vehicle

1997-07-22

1999-08-03

Solis, Erick R.

Heating systems

Heat and power plants

Vehicle

1231425R, B60H 102

Patent

active

059313803

ABSTRACT:
A viscous heater for heating cooling water for cooling a water cooled engine is disposed in a cooling water circuit, and a front heater core is disposed in the cooling water circuit at a downstream side of the viscous heater with reference to a flow direction of the cooling water. Only when a heating operation is the maximum heating operation or the maximum heating operation is desired, a viscous clutch is turned on to transmit a driving force of the engine to the viscous heater. When the maximum heating operation is not desired, the viscous clutch is turned off so that the driving force of the engine is not transmitted to the viscous heater. Therefore, a load of the engine is reduced, and the cost for running the vehicle can be lowered.

REFERENCES:
patent: 4058255 (1977-11-01), Linder et al.
patent: 4733635 (1988-03-01), Menard et al.
patent: 4756359 (1988-07-01), Greer
patent: 4974778 (1990-12-01), Bertling
patent: 4993377 (1991-02-01), Itakura
Patent Abstracts of Japan, vol. 18, No. 358, Jul. 6, 1994, 06-092134.

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