Filter device with clamping wedge

US6736874B2 · kind B2 · utility

Assignee

• Filterwerk Mann & Hummel GmbH · DE

Inventors

• Mario Rieger · Freiberg, DE
• Matthias Amann · Waiblingen, DE

Key dates

• Filing date: Nov 27, 2002
• Grant date: May 18, 2004
• Expiry date: Nov 27, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2279/60
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter device, especially for filtering the intake air of an internal combustion engine, which includes a housing with an unfiltered air inlet and a clean air outlet, and a substantially cylindrical, replaceable filter insert disposed in the housing, which separates an unfiltered air zone within the housing from a clean air zone. An axial seal is provided on at least one end disk of the cylindrical filter insert, which seal interacts with a sealing surface on the housing to seal the unfiltered air zone from the clean air zone. A clamping wedge is also provided, which exerts a force on the filter insert to urge the axial seal reliably against the sealing surface of the filter housing.