ELECTRICAL HEATING DEVICE WITH PTC ELEMENT AND ELECTRICAL SUPPLY LINES AS HEAT CONDUCTOR AND OPERATING FLUID TANK WITH SUCH A HEATING DEVICE
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United States of America Patent
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Issued Date -
Sep 7, 2017
app pub date -
Feb 28, 2017
filing date -
Mar 3, 2016
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Abstract
An electrical heating device (14) for an operating fluid tank (10) of a motor vehicle, in particular for a tank (10) for storing aqueous urea solution, having at least one PTC element (34, 36, 38, 40, 42, 44), that is disposed connecting two electrical conductors (24, 26, 28, 29), characterized in that the electrical heating device (14) comprises a multitude of PTC elements (34, 36, 28, 40, 42, 44), of which each is connectively arranged to two electrical conductors (24, 26, 28, 29), wherein at least one of the electrical conductors (24, 26, 28, 29) is configured as a laminar conductor component and forms a heat conductor for transferring the heat produced in the PTC element (34, 36, 38, 40, 42, 44) to a volume portion of the outside environment (18) of the electrical heating device (14), which is adjacent to the electrical heating device (14).
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