Fluid filter element

US7635429B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Ralf Bauder · Ketsch, DE
• Michael Wolf · North Tonawanda, US
• Karlheinz Muenkel · Bretten, DE
• Joachim Stinzendoerfer · Speyer, DE
• Duc Cuong Nguyen · Laatzen, DE
• Oliver Scherer · Hennweiler, DE
• Martin Gruber · Gangkofen, DE

Key dates

• Filing date: Sep 15, 2006
• Grant date: Dec 22, 2009
• Expiry date: Nov 24, 2026

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2201/298
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A compact filter element with a large filter surface area having inner and outer rings of filter material with an annular space between them, such that fluid to be filtered can be introduced into the annular space between the rings of filter material and a portion thereof can flow through the outer ring of filter material to the periphery of the filter element and another portion thereof can flow through the inner ring of filter material to the center of the filter element; at least one fluid-permeable support member for the filter material, and at least one end disk on an axial end face of the filter element affixed to the rings of filter material in a sealed manner, in which the end disk has a centrally arranged inlet opening for the fluid to be filtered and one or more radially extending distributor channels leading from the central inlet opening to at least one eccentrically arranged outlet opening which opens into the annular space between the rings of filter material to admit fluid to be filtered to the annular space.