Fuel injection nozzle

US4285471A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Ewald Eblen · Stuttgart, DE
• Karl Hofmann · Neckarrems, DE
• Odon Kopse · Stuttgart, DE

Key dates

• Filing date: Mar 13, 1978
• Grant date: Aug 25, 1981
• Expiry date: Mar 13, 1998

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/46
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a fuel injection nozzle in which a control piston acts on the valve needle, which control piston can also be acted upon by another fluid with an arbitrarily changeable pressure. In this manner it is relatively simple to meet the ever increasing requirements to apply an influence of engine characteristic values to the fuel injection process.