FILTER MEDIUM, METHOD FOR PRODUCING A FILTER MEDIUM AND FILTER ELEMENT WITH A FILTER MEDIUM

FILTER MEDIUM, METHOD FOR PRODUCING A FILTER MEDIUM AND FILTER ELEMENT WITH A FILTER MEDIUM

A filter medium for filtering a fluid, the filter medium including: a first media ply; and a second media ply; wherein said second media ply is positioned downstream of the first media ply in an intended flow direction of the filter medium; and wherein said first media ply is formed as a nanofiber p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: STINZENDÖRFER, Joachim, GREIN, Thomas, KREINER, Anton
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:A filter medium for filtering a fluid, the filter medium including: a first media ply; and a second media ply; wherein said second media ply is positioned downstream of the first media ply in an intended flow direction of the filter medium; and wherein said first media ply is formed as a nanofiber ply with nano-fibers; and wherein said second media ply is formed as a support layer with an average surface weight of more than 60 g/m2; wherein the first media ply has a first region on an inflow side and a second region on an outflow side in a direction of the second media ply; wherein the nanofibers of the first region have a smaller average fiber diameter than the nanofibers of the second region.