B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 35/147 (2006.01)
Patent
CA 2568962
A filter device (10) for fluids, especially for motor oil, hydraulic oil, has a filter case (1) comprising one or two filter inlets (2) and one filter outlet (3). The filter case contains one filter (4) consisting of at least two ring-shaped filter elements (7, 8) which concentrically enclose a central tube (18) of the filter device. In a channel (14) between the two adjacent filter elements there is a duct (16) which is run in the form of a spiral around inner filter element (8) and is embedded in filter (4). In duct (16) there is a pressure-controlled regulating valve (9) which opens when a certain level of pressure is exceeded in the filtered oil.
La présente invention concerne un dispositif de filtre (10) destiné à des fluides, et plus particulièrement de l'huile de moteur ou de l'huile hydraulique. Ce dispositif comporte une boîte à filtre (1) comportant un ou deux orifices d'entrée du filtre (2) pour un orifice de sortie du filtre (3). La boîte à filtre contient un filtre (4) constitué d'au moins deux éléments filtrants annulaires (7, 8) renfermant concentriquement un tube central (18) du dispositif de filtre. Un canal (14) ménagé entre les deux éléments filtrants adjacents renferme un conduit (16) qui suit un chemin en spirale autour de l'élément filtrant intérieur (8) et qui est inclus dans le filtre (4). L'intérieur du conduit (16) comporte une vanne de régulation commandée par la pression (9), qui s'ouvre dès qu'on dépasse un certain niveau de pression dans l'huile filtrée.
Gowling Lafleur Henderson Llp
Rassinger Guenther
LandOfFree
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