B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 27/06 (2006.01) B01D 29/21 (2006.01)
Patent
CA 2246216
The present invention comprises a fluid filter element which has a hollow perforate cylindrical supporting core. A relatively fine filter media of substantial cross section is spirally wound about the supporting core with adjacent layers spaced from each other and with the fine filter media accommodating fluid flow for filtering in both a radial and circumferential direction through the cross section and with free access through the cross section to the supporting core. In substantially the same manner, a relatively coarse filter media of substantial cross section is disposed in the space between the layers of fine filter media and with the coarse filter media exiting at the supporting core, the coarse filter media accommodating fluid flow for filtering in both a radial and circumferential direction through the cross section and with free access through the cross section to the supporting core. A central barrier is disposed adjacent the supporting core and at least one of the layers of filter media in approximately the center of the filter element to assist in the filtration process.
La présente invention a pour objet un élément filtrant de filtre pour liquides dont le noyau central est constitué d'un cylindre creux perforé. Un milieu de filtration relativement fine et de section transversale substantielle est enroulé autour du noyau central, les couches adjacentes étant espacées l'une de l'autre; le milieu de filtration fine permet la circulation du liquide filtré à la fois dans une direction radiale et dans une direction circonférentielle sur toute la section transversale et à travers le noyau central. D'une manière analogue, un milieu de filtration moins fine de section transversale substantielle, est disposé dans l'espace compris entre les couches du milieu de filtration relativement fine, le milieu de filtration plus grossière émergeant au niveau du noyau central et permettant la circulation du liquide filtré à la fois dans une direction radiale et dans une direction circonférentielle sur toute la section transversale et à travers le noyau central. Une membrane centrale est disposée au voisinage immédiat du noyau central et d'au moins une des couches du milieu filtrant, à proximité du centre de l'élément filtrant pour contribuer au procédé de filtration.
Bayerlein Douglas G.
Bayerlein Richard E.
Filtration Systems Inc.
Finlayson & Singlehurst
LandOfFree
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