ELECTRIC HEATER FOR HEATING A SUBSTANCE IN A MOTOR VEHICLE

An electric heater for heating a substance, in particular for a tank for a system for reducing the environmental pollution of a motor vehicle;the electric heater comprisinga metal sheet adapted to generate heat when it is crossed by an electric current;two polymeric layers between which the metal sh...

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Bibliographische Detailangaben
Hauptverfasser:	Zoppas, Federico, Zanella, Stefano, Eusebio, Mario
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	An electric heater for heating a substance, in particular for a tank for a system for reducing the environmental pollution of a motor vehicle;the electric heater comprisinga metal sheet adapted to generate heat when it is crossed by an electric current;two polymeric layers between which the metal sheet is arranged;at least one PTC layer, having a positive temperature coefficient, which at least partially coats the metal sheet;wherein the two polymeric layers are hermetically sealed to each other, defining a casing which prevents the substance to be heated from coming into contact with the metal sheet;wherein said at least one PTC layer has a thickness from 5 to 50 μm;wherein said metal sheet is in contact, in particular directly in contact, with both the polymeric layers.