Metallic honeycomb as catalyst carrier with microstructures for flow mixing

US5157010A · kind A · utility

Assignee

• EMITEC Gesellschaft fuer Emissionstechnologie mbH · DE

Inventors

• Wolfgang Maus · Bensberg, DE
• Ludwig Wieres · Overath, DE

Key dates

• Filing date: Jul 17, 1991
• Grant date: Oct 20, 1992
• Expiry date: Jul 17, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1234
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A metallic honeycomb body, such as a catalyst carrier body for the exhaust system of a motor vehicle, includes sheet metal layers at least partly having at least one macrostructure forming a plurality of channels for conveying a fluid in a given flow direction. The at least one macrostructure determines a shape of the honeycomb body, an average channel width and essential mechanical properties of the honeycomb body. At least a part of the sheet metal layers have at least partial regions with microstructures. The microstructures have a height being substantially from 0.01 to about 0.3 times the average channel width and being at least 15 .mu.m. The microstructures extend transversely or at an angle relative to the given flow direction and are spaced substantially from 1-10 mm apart from each other in the given flow direction.