Device for the catalytic cleaning or other treatment of internal combustion engine exhaust gases with two exhaust gas treating bodies and a protective ring between them

US5094073A · kind A · utility

Assignee

• J. Eberspaecher GmbH & Co. KG · DE

Inventors

• Siegfried Worner · Eßlingen, DE
• Georg Wirth · Kirchheim unter Teck, DE
• Peter Zacke · Albershausen, DE

Key dates

• Filing date: Mar 16, 1990
• Grant date: Mar 10, 1992
• Expiry date: Mar 16, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S55/30
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

Device for the catalytic cleaning of or soot removal from exhaust gases of internal combustion engines, comprising a housing that has two open end zones connected to an exhaust gas line and a flow passage for the exhaust gases between the end zones. Two flow-carrying exhaust gas treating bodies are held in housing one behind another in the direction of flow and at spaced locations from one another. A protective ring, is provided surrounding the space between the two exhaust gas treating bodies on the outside. The protective ring is held in the housing in a form-fit manner in the axial direction by a holding member surrounding it on the outside. An axial clearance is provided between the protective ring and at least of the two exhaust gas treating bodies in the installed state.