Pressure glow plug for a diesel engine

US7337657B2 · kind B2 · utility

Assignees

• BERU Aktiengesellschaft · DE
• Texas Instruments Holland B.V. · NL

Inventors

• Michael Haussner · Memmingen, DE
• Ulf Wyrwich · Pleidelsheim, DE
• Hans Houben · Würselen, DE
• Frank Pechhold · Ludwigsburg, DE
• Heinz-Georg Schmitz · Marbach am Neckar, DE
• Dirk Von Hacht · Bornsteiner Straße, DE
• Marc Gerard Johan Borgers · Enschede, NL
• Albert Ferdinand Zwijze · Vriezenveen, NL
• Paulus Thomas Johannes Gennissen · Markelo, NL
• RONALD DE GROOT · Appleton, US
• Arie-Jan Koelling · Enschede, NL

Key dates

• Filing date: Sep 20, 2004
• Grant date: Mar 4, 2008
• Expiry date: Sep 20, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23Q2007/002
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A pressure glow plug for a diesel engine has a glow plug body 2 for being inserted into a cylinder of the diesel engine, a heating rod 1 that is arranged in the glow plug body 2 and a pressure sensor 9 that is arranged between the heating rod 1 and the glow plug body 2 in such a way that the pressure in the combustion chamber of the cylinder that is transmitted by the heating rod 1 influences the pressure sensor 9. The heating rod 1 is arranged in the glow plug body 2 such that it can be displaced in an axially sliding fashion, namely by a corresponding sliding element, for example, a membrane 7 or seals 3.