Gear housing vent

摘要

A vent assembly or breathing tube adapted to relieve pressure in an axle assembly or other gear housing. A vent tube (3) may be disposed within a casing (5) and terminates at an oblique or circular open end (7) in a skirt portion of the tube (3). At least one hole (15) may extend through the side of the casing (5) to allow pressurized gases within the housing to escape through the vent tube (3) via the oblique opening. The casing has a hole (13) disposed on a substantially closed bottom surface (11) to allow the return of any lubricant which might enter the casing (5) through the side hole (15). The side hole (15) may be provided in the skirt when no casing is used. The side hole (15) is preferably located on a side opposite the lubricant flow direction.