Wound filter element

US7645313B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Johannes Lampert · Landshut, DE
• Andreas Pelz · Markgröningen, DE
• Josef Rohrmeier · Laberweinting, DE
• Thomas Sieber · Marklkofen, DE
• Mario Rieger · Freiberg, DE

Key dates

• Filing date: Dec 18, 2006
• Grant date: Jan 12, 2010
• Expiry date: Jan 8, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49604
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter element (1) wound from a plurality of filter layers in which the circumferential contour (5, 5′) of a cross-sectional area (4) of the filter element (1) has at least one circumferential contour section (5′) undercutting the envelope contour (6, 6′) of the cross-sectional filter element area (4).