Fuel injector valve

US4934605A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Waldemar Hans · Bamberg, DE
• Wilhelm Kind · Bamberg, DE
• Manfred Kirchner · Nuremberg, DE
• Siegfried Werner · Erlangen, DE

Key dates

• Filing date: Oct 13, 1988
• Grant date: Jun 19, 1990
• Expiry date: Oct 13, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S239/90
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fuel injection valve comprising a housing, a valve seat located in the housing, and a valve needle having a seated portion cooperating with the valve seat to define a fuel flow area and having a form of a rounding formed by a part of an outer circumference of an imaginary torus.