Injection valve

US7186351B2 · kind B2 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Herbert Guettler · Langenau, DE
• Eberhard Holder · Eßlingen, DE
• Gerhard Kroetz · Munich, DE
• Martin Matt · Weingarten, DE
• Viktor Pfeffer · Esslingen am Neckar, DE

Key dates

• Filing date: Apr 3, 2003
• Grant date: Mar 6, 2007
• Expiry date: Apr 4, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/794
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for producing a filter element includes forming longitudinal ducts extending between upstream and downstream surfaces of the filter element, and installing a heating element for heating regions of walls of the ducts along longitudinal extent of the walls. The filter element is arranged inside an injection valve of an internal combustion engine.