Active carbon coated filter element for preventing the leaking of hydrocarbons

US7637974B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Hans-Peter Scholl · Mundelsheim, DE
• Guenther Scholz · Stuttgart, DE
• Heinz Daubner · Sachsenheim, DE
• Johann Rackerseder · Vilsbiburg, DE
• Reinhold Lebherz · Mundelsheim, DE
• Frank Pfeiffer · Monsheim, DE
• Jens Sohnemann · Landshut, DE
• Juergen Stahl · Kornwestheim, DE
• Fritz Brenneis · Marklkofen, DE

Key dates

• Filing date: Nov 14, 2005
• Grant date: Dec 29, 2009
• Expiry date: Jan 25, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2025/0863
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An active carbon coated filter element is proposed for preventing the issuance of hydrocarbons from an opening. It includes a medium containing active carbon, which is of substantially planar shape and has a frame. The frame is provided with sealing lips on at least two sides. The medium is arranged with the frame in a plastic holder, the plastic holder being able to be inserted and fixed in the opening. The sealing lips engage the wall of the opening.