Filter device for the filtration of fluids

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 46/12 (2006.01) B01D 29/03 (2006.01) B01D 46/52 (2006.01)

Patent

CA 2157380

The filter device (10), provided for the filtration of fluids, comprises two interconnected material structures (14, 16) forming a filter unit (12). The two material structures (14, 16) are mechanically stable, at least one of the two material structures (14, 16) being elastically deformable. The two material structures (14, 16) an connected to each other at opposite connecting sites, with one (16) of the material structures forming an arch between the connecting sites. This arch has been generated by elastic deformation of the respective material structure (16) so that this material structure (16) is mechanically biased. A stretching movement of this material structure (16) is prevented by the connection of this material structure (16) to the other material structure (14) which in turn is of substantially plane configuration and is tensioned. Each thus constructed filter unit (12) offers high stability against the forces generated by the fluid flow so that a filter element (10) comprising such filter units can be inserted without additional constructions or elements which maintain the arched structure of the curved one material structure (16).

Le dispositif filtrant (10) prévu pour la filtration de fluides comprend deux structures interconnectées en tissu (14, 16) formant une unité de filtre (12). Les deux structures en tissu (14, 16) sont mécaniquement stables et au moins une des deux structures en tissu (14, 16) est déformable d'une manière élastique. Les deux structures en tissu (14, 16) sont fixées l'une à l'autre à des sites de fixation opposés, avec une des structures en tissu formant un arc entre les sites de fixation. Cet arc a été généré par déformation élastique de la structure respective en tissu (16) de sorte qu'elle est mécaniquement tendue. Un mouvement d'étirage de cette structure en tissu (16) est empêché par la fixation de cette structure en tissu (16) à l'autre structure en tissu (14) qui, pour ce qui la concerne, est dans une configuration sensiblement plane en étant tendue. Chaque unité de filtre (12) ainsi réalisée offre une grande stabilité contre les forces générées par l'écoulement de fluide, de sorte qu'un dispositif filtrant (10) comprenant de telles unités de filtre peut être inséré sans structures ou éléments additionnels pour conserver la forme de la structure en arc (16).

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