Internal breather for an internal combustion engine

F - Mech Eng,Light,Heat,Weapons – 01 – M

Patent

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Details

F01M 13/04 (2006.01)

Patent

CA 2622157

An internal breather (16) for removing oil from blow-by in an internal combustion engine is disclosed. The breather includes a breather cover (26) having a breather cover drainback hole (28) . The breather further includes a breather cover seal (40) in sealed engagement with the breather cover, and the breather cover seal includes a breather cover seal drainback hole (44) that is aligned with the breather cover drainback hole (29) to create a drainback passage. A breather chamber (30) is bounded on at least one end by the breather cover and the breather seal. A breather media (32) is positioned within the breather chamber, (30) the breather media for removing an amount of oil from the blow-by. The amount of oil removed from the blow-by can, during operation of the engine, be drawn through the drainback passage (28) so as to exit the breather chamber (30) , at least partially due to gravity, and at least partially using a gearing mechanism that is in operative association with a camshaft of the engine. Advantageously, the gearing mechanism, for example a helical gear (24) , can be strategically positioned in-line with the drainback passage .

Reniflard interne pour supprimer l~huile de la ventilation de carter dans un moteur à combustion interne. Le reniflard contient un capot de reniflard avec un trou de purge de retour de capot de reniflard. Le reniflard comporte en outre un joint de capot de reniflard en engagement hermétique avec le capot de reniflard, et le joint de capot de reniflard contient un trou de purge de retour de joint de capot de reniflard qui est aligné avec le trou de purge de retour de capot de reniflard afin de créer un passage de purge de retour. Une chambre de reniflard est délimitée sur au moins une extrémité par le capot de reniflard et le joint de reniflard. Un support de reniflard est disposé dans la chambre de reniflard, le support de reniflard permettant de retirer une quantité d~huile de la ventilation de carter. La quantité d~huile supprimée de la ventilation de carter peut, pendant l~exploitation du moteur, être soutirée à travers le passage de purge de retour de manière à sortir de la chambre de reniflard, au moins partiellement du fait de la gravité, et au moins partiellement en utilisant un mécanisme d'engrenage en association opérationnelle avec un arbre à cames du moteur. Avantageusement, le mécanisme d'engrenage, par exemple un pignon hélicoïdal, peut être positionné stratégiquement en ligne avec le passage de purge de retour.

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