Filter module and process for manufacture of same

Details Filter module and process for manufacture of same Filter module and process for manufacture of same

B - Operations, Transporting

01

D

B01D 29/21 (2006.01) B01D 29/23 (2006.01)

Patent

CA 2614441

The present invention relates to a filter module comprising a body of wound layers of a sheet material, said sheet material having a plurality of openings formed therein, said openings forming two types of channels within the wound layers of sheet material of said body, said channels extending in a direction from the inner peripheral surface to the outer peripheral surface, a first type of channels being open at one end at said outer peripheral surface of the body and closed at the other end located adjacent to said inner peripheral surface, a second type of channels being open at one end at said inner peripheral surface of the body, and closed at the other end located adjacent to said outer peripheral surface, said channels of the one type being separated from the channels of the other type by portions of sheet material, wherein the sheet material has areas at the edge of the openings forming the inlet channels the thickness of which being smaller than the thickness of the sheet material remote from those openings, as well as to a process for the manufacturing of such a filter module.

L'invention concerne un module filtrant comprenant un corps de couches enroulées d'un matériau en feuille, ledit matériau en feuille présentant plusieurs orifices qui forment deux types de canaux dans les couches enroulées du matériau en feuille du corps en question. Ces canaux s'étendent dans une direction allant de la surface périphérique interne à la surface périphérique externe. Un premier type de canaux est ouvert à une extrémité de la surface périphérique externe du corps et fermé à l'autre extrémité jouxtant la surface périphérique interne. Un second type de canaux est ouvert à une extrémité de la surface périphérique interne du corps, et fermé à l'autre extrémité jouxtant la surface périphérique externe. Les canaux d'un type sont séparés des canaux de l'autre type par des parties du matériau en feuille. Ledit matériau en feuille présente des zones au bord des orifices formant les canaux d'admission dont l'épaisseur est inférieure à celle du matériau en feuille distant de ces orifices. L'invention concerne également un procédé de fabrication d'un tel module filtrant.

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