Pressure limiting valve for fuel injection devices

US7234486B2 · kind B2 · utility

Assignee

• L'Orange GMBH · DE

Inventors

• Horst Ressel · Winnenden, DE
• Wolfgang Scheibe · Waiblingen, DE
• Michael Lippisch · Kamenz - Kamjenc, DE
• Rene Teuber · Bad Liebenzell, DE

Key dates

• Filing date: Mar 26, 2002
• Grant date: Jun 26, 2007
• Expiry date: Apr 7, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7925
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A pressure limiting valve is provided which has a valve body assigned on the high-pressure side to a valve seat and an operating piston combined with the valve body to form a unit. The valve body and the operating piston are jointly spring-loaded and bound a pressure space which can be opened as a function of pressure with respect to a connection cross-section open in the return flow by way of the operating piston moving in a sliding guide.