AIR INTAKE SYSTEM FOR A WORK VEHICLE WITH IMPROVED FAN ASPIRATION

摘要

In one aspect, an air intake system for a work vehicle may generally include a fan shroud, a fan disposed within the fan shroud, an intake duct for receiving a portion of the air drawn through a front grille of the work vehicle by the fan and a filter assembly in flow communication with the intake duct. The filter assembly may include a pre-cleaner defining a scavenge port. The system may also include an aspiration conduit coupled to the scavenge port and an aspiration scoop extending between an inlet end and an outlet end. The inlet end may be coupled to the aspiration conduit. The aspiration scoop may extend through a portion of the fan shroud such that the outlet end is positioned within the fan shroud at a location upstream of the fan. The outlet end may include an outlet opening defined by at least one curved wall.

主权项

1. An air intake system for a work vehicle, the air intake system comprising:
a fan shroud extending between a shroud inlet and a shroud outlet; a fan disposed within the fan shroud between the shroud inlet and the shroud outlet, the fan being configured to draw air through a front grille of the work vehicle; an intake duct for receiving a portion of the air drawn through the front grille by the fan; a filter assembly in flow communication with the intake duct, the filter assembly including a pre-cleaner and an air filter, the pre-cleaner defining a scavenge port; an aspiration conduit coupled to the scavenge port; and an aspiration scoop extending between an inlet end and an outlet end, the inlet end being coupled to the aspiration conduit, the aspiration scoop extending through a portion of the fan shroud between the inlet and outlet ends such that the outlet end is positioned within the fan shroud at a location upstream of the fan, the outlet end including an outlet opening facing towards the fan, the outlet opening being defined by at least one curved wall, wherein rotation of the fan generates a vacuum within the aspiration scoop such that particulates within the pre-cleaner are directed through the aspiration conduit and are expelled from the outlet opening of the aspiration scoop.