Electrically heatable heating disk

US11371408B2 · kind B2 · utility

Assignee

• VITESCO TECHNOLOGIES GMBH · DE

Inventors

• Peter Hirth · Rösrath, DE
• Ferdi Kurth · Mechernich, DE
• Thomas Härig · Eppstein, DE

Key dates

• Filing date: Apr 9, 2021
• Grant date: Jun 28, 2022
• Expiry date: Apr 9, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An electrically heatable heating disk for use within a device for the aftertreatment of exhaust gas, wherein the heating disk is formed by a layer stack formed from a multiplicity of metal foils which are stacked one on top of the other, the layer stack being wound to form a honeycomb body, wherein the layer stack has alternately arranged, coarsely structured metal foils and finely structured or smooth metal foils, and wherein the honeycomb body has at least one electrical contact at a radial edge region, wherein first metal foils terminate with an offset with respect to one another as a result of the winding in the circumferential direction of the heating disk, wherein finely structured or smooth second metal foils which extend in the circumferential direction extend beyond the respective ends of the terminating first metal foils in the circumferential direction.