Loading patent…
AssigneeNavistar International Transportation Corp.
InventorsDavid M. Kiser, James H. King
Estimating the term…
An elongate, shallow, rectangular duct is formed in a vehicle hood by structure depending from an inner surface thereof, the hood inner surface forming a top surface of the duct. The rectangular duct includes a forward ambient air inlet and a rear air outlet and incorporates a series of baffles strategically located between the two for eliminating moisture from air flowing therebetween. A sealing sleeve disposed in the duct outlet to engage the engine air cleaner is provided within the duct with an internal passage having a bellmouth nozzle entrance section to the outlet and an external surface having a third baffle section thereon within the duct. The portion of the sleeve external of the duct includes a bellows section to accommodate variations in the position of the air cleaner inlet.
An engine air intake system comprising structure forming an elongate, shallow, rectangular duct which is mounted depending from an inner surface of a vehicle hood and extending horizontally therefrom, said hood surface forming a top surface of said duct, said rectangular duct including a forward ambient air inlet and a rear air outlet adapted to engage an engine air intake, baffle means fixedly attached in said duct between said inlet and said outlet for eliminating moisture from an air stream flowing therebetween, and drain means secured to a bottom surface in said duct between said forward air inlet and said rear outlet for removing said moisture from said duct.
A vehicle hood comprising a skin, a duct structure disposed within said skin and attached thereto to form an air flow duct therewithin, said duct having an ambient air inlet and an air outlet from said duct adapted to engage an engine air cleaner, and an elastomeric duct-to-air cleaner sealing sleeve disposed in said air outlet, said sealing sleeve having an exterior wall disposed in sealing relation with said duct structure and an interior wall defining a passage therethrough for establishing fluid communication between a head end of said sealing sleeve disposed within said duct structure and a tail end of said sealing sleeve disposed exterior of said duct structure, the configuration of said interior wall at said head end comprising a bellmouth nozzle entrance section to said sleeve passage, said nozzle section diverging inwardly into said duct for smoothly channeling air flow in said duct into said air outlet.
A sealing sleeve for establishing fluid communication between an air intake duct having an outlet located within a duct structure, said outlet having a peripheral edge, and an engine air cleaner inlet comprising circumferential elastomeric wall defining a cylindrical interior passage through said sleeve from a head end to a tail end thereof, an exterior surface of said circumferential wall having a circumferential groove disposed intermediate the ends of said sleeve, said groove having parallel walls and being of a predetermined width sufficient to sealingly engage said peripheral edge of said duct structure outlet, said circumferential wall being disposed to form a bellows portion in said tail end, said tail end having a sealing surface, an interior side of said circumferential wall at said head end of said sleeve comprising a bellmouth nozzle section formed, in radial section, by an arcuate inner wall surface converging inwardly into said passage from the head end of said circumferential wall to an interior wall portion parallel to the axis of said passage for smoothly channeling air flow from said duct into said passage.
Dependencies are inferred from the claim text.