Fuel injection device for an internal combustion engine

US5947091A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Klaus-Henning Krohn · Bamberg, DE
• Ulrich Vieweg · Frensdorf, DE
• Christof Vogel · Hallstadt, DE
• Edwin Liebemann · Bamberg, DE
• Mathias Thomas

Key dates

• Filing date: Nov 3, 1997
• Grant date: Sep 7, 1999
• Expiry date: Nov 3, 2017

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 injection valve for an internal combustion engine includes a metering injection valve and a fuel vaporizer that is arranged upstream from an outlet spray orifice of the injection valve (10) on the intake end and has a vaporizer area with at least one assigned electric heating element. To assure in particular that the fuel vaporizer guarantees very good fuel processing in all heating states, i.e., in heating operation for complete or partial vaporization and in the unheated state, the vaporizer area that accommodates at least one heating element is closed at the outlet end by an outlet valve.