Electrically conductive honeycomb as an exhaust gas catalyst carrier body

US5480621A · kind A · utility

Assignee

• EMITEC Gesellschaft fuer Emissionstechnologie mbH · DE

Inventors

• Hans-Jurgen Breuer · Overath, DE
• Theodor Cyron · Bensberg, DE
• Wolfgang Maus · Bensberg, DE
• Helmut Swars · Bensberg, DE
• Ludwig Wieres · Overath, DE

Key dates

• Filing date: Apr 27, 1993
• Grant date: Jan 2, 1996
• Expiry date: Apr 27, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24149
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A honeycomb body assembly, in particular a catalyst carrier body, includes at least one electrically heatable honeycomb body having layered metal sheets forming a stack with a plurality of channels through which a fluid can flow. The metal sheets have a thickness of about 0.03 to 0.12 mm. The honeycomb body is electrically subdivided with regard to its cross-section or in its axial direction. At least one electric current path is formed through the metal sheets with an electric resistance of between 0.01 and 2 .OMEGA.. The resistance, which is dependent on the temperature, can be used for monitoring and regulating the honeycomb assembly.