Apparatus for the cold starting and warming run of spark plug-ignited internal combustion engines

US3999525A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gerhard Stumpp · Stuttgart, DE
• Josef Steiner · Eßlingen, DE
• Friedbert Michel · Kornwestheim, DE

Key dates

• Filing date: Aug 27, 1973
• Grant date: Dec 28, 1976
• Expiry date: Aug 27, 1993

Classification

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

Abstract

In each fuel injection valve forming part of a fuel injection apparatus and associated with an internal combustion engine, there is disposed an electric heater which transmits heat to the fuel by contact-type heat exchange. The heat output of each heater is controlled by a device which processes input signals representing different engine variables.