Electric gas flow heater and vehicle
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United States of America Patent
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Dec 5, 2023
Grant Date -
Nov 24, 2022
app pub date -
Oct 19, 2020
filing date -
Oct 30, 2019
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Abstract
An electric gas flow heater has a grid-like heating element through which exhaust gas can flow axially, and which forms an electrical resistance heating. The grid-like heating element includes radially successive layers of band-like material, wherein the layers, in an axial view of the heating element, are bent in an undulating manner and include valleys and peaks. The layers that are located between the radially outermost layer and the radially innermost layer are attached by their peaks and valleys to the respectively radially adjacent layer, so that flow-through openings are formed between the layers. The wavelengths of the layers are increasing radially outwards.
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