Valve having a nozzle plate provided with a plurality of radially running slots

US5921474A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Georg Zimmermann · Gerlingen, DE
• Horst Magenau · Gerlingen, DE
• Jurgen Buehring · Stuttgart, DE
• Gilbert Moersch · Stuttgart, DE
• Joerg Heyse · Markgröningen, DE
• Harald Koenig · Bernhardswald, DE

Key dates

• Filing date: Mar 12, 1997
• Grant date: Jul 13, 1999
• Expiry date: Mar 12, 2017

Classification

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

Abstract

The valve in accordance with the present invention possesses a nozzle plate, which is distinguished by a plurality of narrow slots being provided in it as outlets for fuel. These slots are arranged running radially in a star shape, the individual slots not having a common point of contact. A uniform, very fine atomization of the fuel is possible with this arrangement without additional energy. A consequence of disintegrating into very small droplets is that the exhaust emission of an internal combustion engine can be further reduced and a reduction in fuel consumption can also be achieved. The valve is suited particularly for use in fuel injector systems of mixture-compressing internal combustion engines having externally supplied ignition.