Electrical feedthrough with porous ceramic layer and a pore filler
AssigneeVitesco Technologies GmbH
InventorsPeter Hirth, Stefan Ahlers
Life of this patent
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Abstract
A feedthrough for an electrical conductor for electrical connection of an electrically heatable heating disk, especially in an exhaust gas system of an internal combustion engine, through a housing, where the feedthrough has an internal conductor, an outer sleeve, and at least one insulator, where the insulator is disposed between the internal conductor and the outer sleeve such that the internal conductor is electrically insulated from the outer sleeve. The insulator is formed by a porous ceramic layer, where pores in the ceramic layer are at least partly filled by a pore filler.
Claims13
A feedthrough for an electrical conductor for electrical connection of an electrically heatable heating disk through a housing, comprising:
- an internal conductor;
- an outer sleeve;
- at least one insulator formed by a porous ceramic layer and disposed between the internal conductor and the outer sleeve such that the internal conductor is electrically insulated from the outer sleeve;
- and
- a pore filler configured to at least partly fill pores in the porous ceramic layer.
A process for producing a feedthrough having an internal conductor, an outer sleeve, and at least one insulator formed by a porous ceramic layer and disposed between the internal conductor and the outer sleeve such that the internal conductor is electrically insulated from the outer sleeve, comprising:
- filling pores in the porous ceramic layer with a pore filler,
- wherein the porous ceramic layer is contacted with the pore filler in two or more successive passes, increasing a filling level of the pores with each pass.
Dependencies are inferred from the claim text.