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 2614433

The present invention provides 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 a majority of the openings of a layer of sheet material forming the inlet channels incompletely register with corresponding openings of an adjacent layer and a process for manufacture such filter module.

La présente invention concerne un module de filtre comprenant un corps de couches enroulées d~un matériau en feuille, ledit matériau en feuille comportant une pluralité d~ouvertures, lesdites ouvertures formant deux types de canaux à l~intérieur des couches enroulées de matériau en feuille dudit corps, lesdits canaux s~étendant dans une direction depuis la surface périphérique interne jusqu~à la surface périphérique externe, un premier type de canaux étant ouvert à une extrémité au niveau de ladite surface périphérique externe du corps et fermé à l~autre extrémité située à côté de ladite surface périphérique interne, un second type de canaux étant ouvert à une extrémité au niveau de ladite surface périphérique interne du corps et fermé à l~autre extrémité située à côté de ladite surface périphérique externe, lesdits canaux de ce type étant séparés des canaux de l~autre type par des portions de matériau en feuille dans lequel la plupart des ouvertures d~une couche de matériau en feuille formant les canaux d~entrée coïncident de manière incomplète avec les ouvertures correspondantes d~une couche adjacente et concerne également un procédé de fabrication de ce module de filtre.

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