Filter device

US8741016B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Yassine Maaradji · Stuttgart, DE
• Jens Hähn · Heidelberg, DE
• Jan Zink · Viernheim, DE
• Joachim Stinzendörfer · Speyer, DE
• Stefan Becker · Mannheim, DE
• Karlheinz Münkel · Bretten, DE
• Michael Wolf · North Tonawanda, US
• Werner Blossey · Memmingen, DE
• Mario Rieger · Freiberg, DE
• Ralf Poh · Neustadt, DE
• Josef Rohrmeier · Laberweinting, DE
• Thomas Sieber · Marklkofen, DE
• Andreas Pelz · Markgröningen, DE
• Rolf Sanders · Clausthal-Zellerfeld, DE
• Manfred Winter · Bad Rappenau, DE

Key dates

• Filing date: Jan 31, 2012
• Grant date: Jun 3, 2014
• Expiry date: Jan 31, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D46/64
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter device has a compact filter made of a filter material that is wound spirally. A star filter that is made of a filter material that has folds arranged in a star shape surrounds the compact filter. The filter device has a cylindrical shape. A fluid to be filtered passes the compact filter in an axial direction and the star filter in a radial direction. The filter device is exchangeable and is mounted in a filter housing such that the compact filter and the star filter have a common raw side and a common clean side that are separated from each other.