Fuel injector-spark plug combination

US6832588B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Werner Herden · Gerlingen, DE
• Dieter Volz · Heilbronn, DE
• Gernot Wuerfel · Lambach, DE
• Anja Melsheimer · Stuttgart, DE
• Simon Schmittinger · Renningen, DE
• Rainer Norgauer · Stuttgart, DE
• Rene Deponte · Sersheim, DE

Key dates

• Filing date: Dec 16, 2003
• Grant date: Dec 21, 2004
• Expiry date: Dec 16, 2023

Classification

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

Abstract

A fuel injector-spark plug combination includes a fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine, and a spark plug for igniting the fuel injected into the combustion chamber, and has a spark-plug insulator including a first electrode, and includes a second electrode. The fuel injector and the spark-plug insulator of the spark plug are each disposed in a recess of a cylinder head of the internal combustion engine. The fuel injector and the spark-plug insulator of the spark plug are fixedly held in place in a shared connecting member arranged outside of the cylinder head.