Heating apparatus for vehicle having heat-generating unit

Details Heating apparatus for vehicle having heat-generating unit Heating apparatus for vehicle having heat-generating unit

1997-05-23

1999-03-23

Bennett, Henry A.

Heating systems

Heat and power plants

Vehicle

126247, 122 26, B60H 102

Patent

active

058848398

ABSTRACT:
In a heating apparatus according to the present invention, when a temperature of cooling water in a cooling water circuit is equal to a set cooling water temperature or less, a viscous clutch is turned on to operate a viscous heater disposed in the cooling water circuit, for maintaining the temperature of the cooling water in the cooling water circuit at a predetermined value. A shaft of the viscous heater is rotated by a water-cooled engine through a belt transmitting mechanism and the viscous clutch. The set cooling water temperature is increased in accordance with an increase of a target air temperature calculated based on a set temperature, an inside air temperature, an outside air temperature, and a sunlight amount to optimize a used condition of the viscous heater.

REFERENCES:
patent: 2344075 (1944-03-01), Beldimano
patent: 2749049 (1956-06-01), Smith
patent: 3720372 (1973-03-01), Jacobs
patent: 4271790 (1981-06-01), Ahmed et al.
patent: 4974778 (1990-12-01), Bertling
patent: 4993377 (1991-02-01), Itakura
patent: 5573184 (1996-11-01), Martin

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