Filter element for cleaning a fluid

US7874431B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Jobst Eisengraeber-Pabst · Oberstenfeld, DE
• Joachim-Paul Krieger · Dingolfing, DE
• Alfons-Alois Schwinghammer · Dingolfing, DE
• Johannes Lampert · Landshut, DE
• Daniela Knodel · Sersheim, DE
• Frank Pflueger · Sachsenheim, DE
• Fritz Kupfer · Poxau, DE

Key dates

• Filing date: May 29, 2007
• Grant date: Jan 25, 2011
• Expiry date: May 29, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2201/291
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter element for cleaning a fluid having a pleated filter medium designed for radial flow, to the outside of which a circumferential reinforcing thread is applied. The outside of the filter medium is divided into two axial sections, to which the reinforcing thread is applied in a plurality of circumferential thread windings, such that the axial distance between directly adjacent thread windings differs in the two sections.