Electric gas flow heater and vehicle
AssigneeFaurecia Emissions Control Technologies, Germany GmbH
InventorsToni Zipfel, Maximilian Kuhnert
Life of this patent
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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.
Claims19
An electric gas flow heater, comprising:
- a grid-like heating element through which gas can flow axially and which forms an electrical resistance heating, and wherein the grid-like heating element includes radially successive layers of band-like material, wherein the radially successive layers, in an axial view of the grid-like heating element, are bent in an undulating manner and include valleys and peaks, wherein the radially successive layers that are located between a radially outermost layer and a radially innermost layer are attached by the peaks and the valleys to radially adjacent layers, so that flow-through openings are formed between the radially successive layers, and wherein wavelengths of the radially successive layers increase radially outwards.
Dependencies are inferred from the claim text.