Ignition device with lowered ignition temperature

US4972811A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Detlef Baresel · Stuttgart, DE
• Gerhard Huth · Stuttgart, DE
• Anton Kling · Gerlingen, DE

Key dates

• Filing date: Aug 4, 1989
• Grant date: Nov 27, 1990
• Expiry date: Aug 4, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An ignition system comprising one of a glow plug, spark plug and glow attachment having metal or ceramic surfaces which are exposed to a fuel/air mixtuer, and are at least partially covered with a coating comprising at least one complex metal oxide obtained as a result of a reaction of a basic oxide selected from a group comprising oxides of Si, Y, La and Ce and mixed oxides of the above-mentioned oxides with Al.sub.2 O.sub.3, with at least one further oxide selected from a group comprising oxides of alkali and alkali earth metals.