Injection valve in particular for directly injecting fuel into the combustion chamber of an internal combustion engine

US6027050A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Helmut Rembold · Stuttgart, DE
• Martin Mueller · Heubach, DE
• Christian Preussner · Markgröningen, DE
• Andreas Benz · Erlangen, DE
• Ottmar Martin · Lambach, DE

Key dates

• Filing date: Feb 17, 1998
• Grant date: Feb 22, 2000
• Expiry date: Feb 17, 2018

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M61/1806
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An injector, in particular for injecting fuel directly into a combustion chamber of an internal combustion engine, having a fuel flow path from a fuel intake to a spray orifice, a plurality of fuel channels being arranged in the flow path in front of the spray orifice, their cross section, given a certain fuel pressure, determining each quantity of fuel spray-discharged per unit of time. To influence the fuel distribution in a spray-discharged fuel cloud and, in particular, to attain a selected strand-like quality of the fuel cloud, provision is made that at least one part of the fuel channels is aligned such that the fuel jets issuing from them are spray-discharged directly through the spray orifice when the valve is open.