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US 6,093,909 AGranted
Flow heater
AssigneeDavid & Baader - DBK - Spezialfabrik elektischer Apparate und Heizwiderstande GmbH
InventorsKlaus Beetz, Franz Bohlender
Life of this patent
Estimating the term…
Abstract
The invention relates to a flow heater for heating liquid in a closed cycle in a motor vehicle. The flow heater comprises at least one radiator with at least one channel, through which the liquid to be heated flows, ant at least one PTC-heating element for heating the closely adjacent radiator.
Claims20
A heating system in a vehicle, said heating system comprising:
- a heating device for heating a heat-transfer agent, said heat-transfer agent circulating in a coolant cycle, said coolant cycle including a heat exchanger for heating, said heating device comprising a plurality of heat conductive members being stacked and a plurality of channels through which the heat-transfer agent flows, the front sides of said stacked heat conductive members being closed with a cover in such a manner that said channels are connected to a communicating channel system, said plurality of heat conductive members being arranged closely adjacent to a heating element, said heating element being a PTC (Positive Temperature Coefficient) heating element.
A vehicle comprising:
- a heating device for a heat-transfer agent in a heating system in the vehicle, said heat-transfer agent circulating in a coolant cycle and said coolant cycle including a heat exchanger for heating, said heating device including a plurality of heat conductive members being stacked and a plurality of channels through which the heat-transfer agent flows, the front sides of said stacked heat conductive members being closed with a cover in such a manner that said channels are connected to a communicating channel system, said plurality of heat conductive members being arranged closely adjacent to a heating element, said heating element being a PTC (Positive Temperature Coefficient) heating element.
Dependencies are inferred from the claim text.