Claims (6)
1. Filterpatron omfattende et plisseret filterelement, som er samlet til dannelse af et rør, og således, at plisseringerne forløber i hele rørets samlede længde, kendetegnet ved, at filterelementet (1) er fremstillet af et stykke filtermateriale med en længde på over 2,1 meter.A filter cartridge comprising a pleated filter element assembled to form a tube and such that the pleated extends throughout the entire length of the tube, characterized in that the filter element (1) is made of a piece of filter material having a length greater than 2, 1 meter.
2. Filterpatron ifølge krav 1,kendetegnet ved, at der udvendigt på filterelementet (1) forløber et eller flere rundtgående bånd (4) til sikring af rørformen.Filter cartridge according to claim 1, characterized in that one or more circumferential strips (4) for securing the tubular form extend externally of the filter element (1).
3. Filterelement ifølge krav 2, kendetegnet ved, at båndet (4) er fæstnet til de udvendige foldekanter (6) ved en sammensmeltning (14).Filter element according to claim 2, characterized in that the band (4) is attached to the outer fold edges (6) by a fusion (14).
4. Filterpatron ifølge ethvert af kravene 1 og 2, kendetegnet ved, at filterelementets (1) tykkelse, som udgøres af plisseringernes sider (8) mellem dets foldekanter (6, 7), er mindre end 28 mm.Filter cartridge according to any one of claims 1 and 2, characterized in that the thickness of the filter element (1), which is constituted by the sides (8) of the pleats between its folding edges (6, 7), is less than 28 mm.
5. Filterpatron ifølge krav 4, kendetegnet ved, at der indvendig i hele filterpatronens længde forløber et med gennemgående åbninger (12) forsynet rør (5), hvorom filterelementet (1) forløber.Filter cartridge according to claim 4, characterized in that a tube (5) provided with through openings (12) extends inside the entire length of the filter cartridge, through which the filter element (1) extends.
6. Filterpatron ifølge krav 5, kendetegnet ved, at røret (5) omfatter ribber (10,11), som forløber omkring åbningerne (12).Filter cartridge according to claim 5, characterized in that the tube (5) comprises ribs (10, 11) extending around the openings (12).