An oil filter to introduce anti-wear additives into engine...

Details An oil filter to introduce anti-wear additives into engine... An oil filter to introduce anti-wear additives into engine...

F - Mech Eng,Light,Heat,Weapons

16

N

F16N 39/00 (2006.01) B01D 37/02 (2006.01) B01D 39/04 (2006.01) B01D 39/16 (2006.01) C10M 147/02 (2006.01) C10M 175/00 (2006.01) F01M 9/02 (2006.01)

Patent

CA 2261640

An oil filter (10) includes a colloidal suspension (12) of PTFE particles less than 2 microns in size retained by capillary forces within the intricacies of the filter media (26) until the filter (10) is installed and engine oil flows at first engine start up following installation. The PTFE colloidal suspension (12) is completely and immediately released into the engine lubricating system when oil flow is initiated. The PTFE colloidal suspension (12) is introduced into the oil filter (10) as one of the last manufacturing steps. Oil filter (10) is disposed vertically with its outlet port (14) at the top. A quantity of the PTFE colloidal suspension is introduced into the outlet port (14) to initially fill a portion of the volume defined by a centertube (18) and a retainer (16). The PTFE colloidal suspension passes through openings (20, 24) into contact with filter media (26). The capillary forces acting between filter media (26) and the PTFE colloidal suspension (12) cause the colloidal suspension (12) to be drawn in and retained within the intricacies of the filter media (26) fibers.

Un filtre à huile (10) comprend une suspension colloïdale (12) de particules de PTFE d'une taille inférieure à 2 microns, retenues par des forces capillaires à l'intérieur des entrelacs du milieu filtrant (26) jusqu'à ce que le filtre (10) soit installé et que l'huile du moteur commence à s'écouler lors du premier démarrage du moteur après l'installation. La suspension colloïdale de PTFE (12) est totalement et immédiatement libérée dans le système de lubrification du moteur au moment où l'huile commence à s'écouler. Son introduction dans le filtre à huile (10) constitue l'une des dernières étapes de la fabrication. Le filtre à huile (10) est disposé verticalement, avec son orifice de sortie (14) vers le haut. Une quantité de la suspension colloïdale de PTFE est introduite dans l'orifice de sortie (14), de façon à remplir d'abord une partie du volume défini par un tube central (18) et un dispositif de retenue (16). La suspension traverse des orifices (20, 24) et entre en contact avec le milieu filtrant (26). Les forces capillaires agissant entre ce dernier et la suspension (12) attirent et retiennent celle-ci dans les entrelacs des fibres du milieu filtrant (26).

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