Method for the unilateral or bilateral sealing or filling of flow channels in an annular zone of a cylindrical honeycomb body

US5707574A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Rainer Domesle · Alzenau, DE
• Bernd Engler · Hanau, DE
• Wolfgang Kuhl · Hanau, DE
• Egbert Lox · Hanau, DE
• Oliver Fehnle · Rheinfelden (Baden), DE
• Walter Leibold · Driedorf, DE

Key dates

• Filing date: Jul 5, 1995
• Grant date: Jan 13, 1998
• Expiry date: Jul 5, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J37/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method for the sealing of flow channels in an annular zone of a cylindrical honeycomb body. The sealing of the flow channels takes place by introduction of a ceramic compound into the flow channels by means of a nozzle, wherein nozzle and honeycomb body are moved relative to one another with simultaneous guiding of the nozzle past the lateral surface and/or past the end face contour of the honeycomb body.