Method for manufacturing ceramic glow plugs

US7160584B2 · kind B2 · utility

Assignee

• BERU Aktiengesellschaft · DE

Inventors

• Oliver Goeb · Erbach, DE
• Hans Houben · Würselen, DE
• Lutz Frassek · Baumholder, DE
• Henning Von Watzdorf · Delbrück, DE
• Martin Allgaier · Ludwigsburg, DE
• Johann Weissenbacher · Löwenstein, DE

Key dates

• Filing date: Nov 10, 2004
• Grant date: Jan 9, 2007
• Expiry date: Nov 10, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23Q2007/004
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A method for manufacturing a ceramic glow pin which is formed of more than two layers arranged especially coaxially to the axis of the glow pin and symmetrically. The layers of the layer structure are manufactured by co-extrusion.