Fuel injector

US5904299A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Waldemar Hans · Bamberg, DE
• Thomas Betzel · Bamberg, DE
• Peter Asslaender · Grand Rapids, US
• Reinhold Brueckner · Litzendorf, DE
• Uwe Grytz · Bamberg, DE
• Christian Preussner · Markgröningen, DE
• Stefan Lauter · Herbstein, DE
• Rainer Bottler · Baunach, DE
• Robert Schmidt-Hebbel · Hirschaid, DE

Key dates

• Filing date: Sep 15, 1997
• Grant date: May 18, 1999
• Expiry date: Sep 15, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M51/06
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A housing body of a fuel injector has a multi-part design; it includes a base member and at least one calibrating sleeve. Air is supplied and metered in through the calibrating sleeve, while the base member is used for sealing and attachment purposes. A dimensionally accurate machining of calibrating sleeves can be carried out simply and cost-effectively. The structural design easily yields many different variants. The fuel injector is especially suited for fuel-injection systems of mixture-compressing internal combustion engines having externally supplied ignition.