Fuel delivery system for an internal combustion engine

US5873354A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Klaus-Henning Krohn · Bamberg, DE
• Waldemar Hans · Bamberg, DE
• Joerg Lange · Eberdingen, DE
• Anwar Abidin · Leonberg, DE
• Thomas Betzel · Bamberg, DE
• Uwe Grytz · Bamberg, DE
• Ulrich Vieweg · Frensdorf, DE
• Christof Vogel · Hallstadt, DE
• Edwin Liebemann · Bamberg, DE

Key dates

• Filing date: Jun 6, 1997
• Grant date: Feb 23, 1999
• Expiry date: Jun 6, 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 delivery system for an internal combustion engine having an intake air metering device, leading to individual combustion chambers several fuel injection valves, each of which is assigned to one combustion chamber, and a central fuel vaporizer to which fuel can be supplied by a fuel metering device. To reduce pollutant emissions during the warm-up phase of the internal combustion engine after start-up, fuel vapor generated in the fuel vaporizer can be added to the intake air for the combustion chambers downstream from the intake air metering device.