Filter assembly including a magnetized component

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 35/06 (2006.01) B01D 27/00 (2006.01) B01D 27/10 (2006.01) F01M 11/03 (2006.01)

Patent

CA 2194114

A filter element has an internal coil spring which is magnetized to remove magnetizable particles from a stream of lubricating oil prior to the oil passingthrough an annular filter media. The annular filter media is part of a cylindrical filter element which includes an end cap that closes one end of the filter element and an internal sleeve which defines a hollow core. The filter element is disposed within a filter container having a cylindrical wall and a round end wall. The filter container is closed at one end by an end plate overlain by a cover plate. Lubricating oil to be filtered enters the container and accumulates in an annular space between the filter element and in an end space between the end cap of the filter element and the closed end of the housing prior to passing through the filter media. By being positioned in the end space, the coil spring exposes the lubricating oil to its magnetic field so as to remove magnetizable particles entrained in the oil from the oil and to retain those particles on the coil spring.

lément filtrant à ressort en spirale magnétisé pour éliminer les particules magnétiques d'un flux d'huile lubrifiante avant le passage de l'huile dans un milieu filtrant annulaire. Le milieu filtrant annulaire fait partie d'un élément filtrant cylindrique se composant d'un obturateur d'extrémité servant à boucher une extrémité de l'élément filtrant, et d'une enveloppe interne constituant un corps creux. L'élément filtrant se trouve dans un contenant à filtre à paroi cylindrique et à fond arrondi. Le contenant à filtre est fermé à un bout par une plaque d'extrémité recouverte par une plaque-couvercle. L'huile lubrifiante qui doit être filtrée entre dans le contenant et s'accumule dans un espace annulaire entre l'élément filtrant et dans un espace au fond entre l'obturateur d'extrémité de l'élément filtrant et l'extrémité fermée du contenant avant de passer dans le milieu filtrant. Placé dans l'espace au fond, le ressort en spirale expose l'huile lubrifiante à son champ magnétique, de sorte que les particules magnétiques sont éliminées de l'huile et sont retenues par le ressort en spirale.

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