초록 ▼

An improved viscous heater for a vehicle heating system is disclosed. The viscous heater has a heat generator including a rotor that agitates viscous fluid to generate the heat. A vehicle engine transmits its rotation to the rotor via an electromagnetic clutch. A thermosensitive switch is attached t

An improved viscous heater for a vehicle heating system is disclosed. The viscous heater has a heat generator including a rotor that agitates viscous fluid to generate the heat. A vehicle engine transmits its rotation to the rotor via an electromagnetic clutch. A thermosensitive switch is attached to the heat generator and selectively connects and disconnects the electromagnetic clutch with electric power source. The thermosensitive switch is selectively activated and deactivated based on magnitude of the heat generated by the agitated viscous fluid. The thermosensitive switch is deactivated when the ambient temperature is in excess of the predetermined uppermost value (T) and activated when the temperature in smaller than the predetermined lowermost value (T-.DELTA.T).

대표청구항 ▼

[ What is claimed is:] [1.] A heat generator used in a vehicle heating apparatus, said heat generator comprising:a heat source;a housing for accommodating the heat source;control means for controlling the magnitude of the heat generated by the heat source, the control means including an electric cir

[ What is claimed is:] [1.] A heat generator used in a vehicle heating apparatus, said heat generator comprising:a heat source;a housing for accommodating the heat source;control means for controlling the magnitude of the heat generated by the heat source, the control means including an electric circuit anda thermosensitive switch for selectively activating and deactivating the electric circuit based on a first threshold value and a second threshold value, said first threshold value and said second threshold value being predetermined based on the magnitude of the generated heat, wherein said thermosensitive switch is mounted on the housing.