Engine air intake apparatus

• US 5,042,603 A
• Filed: 04/23/1990
• Issued: 08/27/1991
• Est. Priority Date: 04/23/1990
• Status: Expired due to Term

• Current Assignee: International Truck Intellectual Property Co. LLC (Volkswagen AG)
• Original Assignee: Navistar International Transportation Corp. (Volkswagen AG)
• Inventors: Olson, M. Eugene
• Primary Examiner(s): Mitchell, David M.
• Application Number:
  US07/512,701
• Time in Patent Office: 491 Days
• Field of Search: 180/68.3, 180/68.1, 55/385.3, 55/462, 55/465, 55/DIG. 28
• US Class Current: 180/68.3
• CPC Class Codes: B60K 13/02 concerning intake
• CPC Class Codes: Y10S 55/28 Carburetor attached

Abstract

The engine air intake apparatus comprises a planar base plate incorporating a curved duct which lies in the plane of the base member initially and then curves inwardly therethrough. The inwardly curved portion of the duct lies toward a trailing edge of the base plate member and is covered by a cover plate member which seats onto and over the trailing end portion of the base plate member in a parallel plane slightly above the plane of the base plate member. When mounted onto the hood of a vehicle, the leading edge of the base plate member, which is slightly elevated above the level of the hood, provides a leading end splitter plow arrangement to the apparatus for removing hood surface water from the air stream flowing along the hood. The duct incorporates a further water removal apparatus comprising an interior separator plate and drain at the trailing end of the curve within the duct for collecting airborne water particles thereon which are thrown off the air stream by centrifugal force as the air stream negotiates the curve and for eliminating the water particles from within the apparatus.

Claims

1. An engine air intake apparatus for use with a truck having a hood incorporating an engine air hood duct for providing an air flow stream to an engine of the truck comprising:

a planar base member having an outer surface;

a curved duct partially defined by an inner longitudinally extending wall which lies in the plane of the base member outer surface initially at an entrance adjacent a leading end thereof and then curves inwardly into said intake apparatus to an opening, said curved duct further being defined by side and rear walls depending inwardly from said base member;

mounting wall means formed with said base member for mounting said planar base member to said hood in a manner assuring fluid communication between the curved duct opening and said hood duct and with said planar base member being spaced adjacently above said hood surface;

a cover plate attached to said planar base member which seats onto and over a trailing end portion of the base plate member over the inwardly curved portion of the duct, said cover plate having a leading lip disposed adjacently above the plane of the base plate member;

said planar base member having a flange overhanging said mounting wall means and further incorporating a splitter plow arrangement at said leading end thereof between said base member flange and said hood surface to prevent hood surface water from entering said air flow stream; and

a water particle separator wall disposed transversely to said air stream on said rear wall adjacent said opening for capturing water particles thrown off by the air flow stream as it negotiates said curved duct and eliminating said water particles from said apparatus.

2. The apparatus of claim 1 wherein the side walls of said curved duct diverge rearwardly from said leading edge entrance thereto to a width equal to said opening.

3. The apparatus of claim 2 wherein said air stream in said curved duct is turned approximately 90°

.

4. The apparatus of claim 1 wherein said cover plate is substantially planar.

5. The apparatus of claim 4 wherein said splitter plow arrangement includes a depending wall portion for splitting the air gap along the hood surface beneath said flange.

6. The apparatus of claim 5 wherein said water particle separator wall is mounted by support walls to a trailing end edge of said duct and a drain port disposed in one of said support walls.

7. The apparatus of claim 6 wherein said drain port is provided in said support wall which will be the bottom wall when said apparatus is appropriately mounted.

8. An engine air intake apparatus comprising a base member having a planar plate portion and incorporating a duct inlet which lies in the plane of said plate portion initially along a leading end thereof and then curves inwardly therethrough, said inwardly curved portion of said duct lying toward a trailing edge of the base member and being covered by a cover plate member which seats onto and over the trailing end portion of said base member in a parallel plane slightly above the plane of said plate portion, said base member including leading end splitter plow means disposed adjacent said plate portion on a side thereof opposite said duct inlet for channelling surface water flowing therealong away from said duct inlet and said duct incorporating a secondary water removal apparatus comprising an interior separator wall and drain port at the trailing end of the curve within the duct for collecting airborne water particles thereon which are thrown off the air stream by centrifugal force as the air stream negotiates the curve and for eliminating the water particles from within the apparatus.

9. The apparatus of claim 8 wherein said curve in said duct extends around approximately 90°

.

10. The apparatus of claim 9 wherein said cover plate is substantially planar.

11. The apparatus of claim 10 wherein said splitter plow means includes a forwardly protruding flange formed by said plate portion and a wedge-shaped wall portion depending from said plate portion for splitting the air flow along said base member beneath said flange.

12. The apparatus of claim 11 wherein said water particle separator includes a separator wall which is mounted by support walls to a trailing end edge of said duct so as to lie in a plane transverse to the plane of air flow along an outer side of said curve and wherein a drain port is provided in one of said support walls.

13. The apparatus of claim 12 wherein said drain port is provided in said support wall which will be the bottom wall when said apparatus is appropriately mounted.

14. In combination with a truck hood incorporating an engine air hood duct for providing an air flow stream to an engine of the truck, an intake apparatus comprising:

a planar base member mounted to said truck hood and having an outer surface, said planar base member being spaced adjacently parallelly above said hood surface;

said planar base member having an undercut lower surface defining an overhanging flange disposed about the leading periphery of said base member;

a splitter plow arrangement disposed between said flange and the exterior surface of said truck hood at a leading end of said base member to prevent hood surface water from entering said air flow stream; and

a duct through said base member opening to said outer surface, said duct being in fluid communication with said hood duct.

15. The invention in accordance with claim 14 and said duct being curved within said base member to turn an air stream normal to the direction of travel and a water particle separator wall disposed within said duct on a rear wall thereof adjacent an opening to said hood duct for capturing water particles thrown off by the air flow stream as it negotiates said curved duct.

16. In combination with a truck hood having an engine air inlet duct, an air intake apparatus comprising a planar base plate member mounted to an exterior surface of said hood, said planar base plate member having an undercut lower surface defining an overhanging flange disposed about the leading periphery of said base member and spaced from said exterior hood surface, said planar base plate member incorporating a duct inlet having a lower wall which lies in the plane of the base plate member initially along a leading end thereof and then curves inwardly therethrough, said inwardly curved portion of said duct wall lying toward a trailing edge of the base plate member and being covered by a cover plate member which seats onto and over the trailing end portion of said base plate member in a parallel plane slightly above the plane of the base plate member, said side walls of said duct diverging toward the trailing edge of said duct, and means establishing fluid communication between said duct and said hood duct.

17. The invention in accordance with claim 16 and said duct incorporating a water removal apparatus comprising an interior separator wall and drain port at the trailing end of the curve within the duct for collecting airborne water particles thereon which are thrown off the air stream by centrifugal force as the air stream negotiates the curve and for eliminating the water particles from within the apparatus.