Air induction system
AssigneeMTD Products Inc
InventorStefan Hornung
Life of this patent
Estimating the term…
Abstract
A hood and a blower housing form an air induction cavity in the side of the mower hood, which draws the ambient air into the air intake and from there into the engine. Two shield members on the blower housing prevent the ambient air from mixing with the hot air of the engine. A method of air induction is also disclosed, including the steps of forming an air induction cavity by connecting the upper hood to the housing, having the lower lip of the air induction cavity lower than the air intake of the blower housing, channeling the air into the air intake, and preventing the hot air of the engine from mixing with the ambient air drawn through the air induction cavity.
Claims19
A hood/blower housing assembly for a lawn tractor the assembly comprising:
- a hood;
- a blower housing operatively connected to the underside of the hood, the blower housing comprising:
- an air intake having a height h1;
- a first shield member;
- a second shield member;
- wherein the blower housing and the first and second shields form a closed chamber to prevent hot air from an associated engine from entering the air intake;
- a first air induction cavity on a first side of the hood;
- and, an upper and a lower lip, the lower lip having a height h2, wherein the height h1 of the air intake being greater than the height h2 of the lower lip.
A hood/blower housing assembly for a lawn tractor, the assembly comprising:
- a hood for enclosing an associated engine, the hood comprising an upper hood having an upper lip and a lower hood having a lower lip, wherein the lower lip has a height h2;
- a blower housing operatively connected to the underside of the upper hood, the blower housing comprising:
- an air intake having a height h1;
- a first shield member;
- a second shield member;
- wherein the blower housing and the first and second shields form a closed chamber to prevent hot air from an associated engine from entering the air intake;
- a first air induction cavity on a first side of the hood.
A method of air induction for a lawn tractor wherein an associated engine creates suction to draw air into the associated engine, the method comprising the steps of:
- providing a hood;
- providing an air intake;
- providing a blower housing with a lower lip, the lower lip having a height h2 and the air intake having a height h1, the height h1 of the air intake being greater than the height h2 of the lower lip;
- connecting the hood to the blower housing, thereby creating an air induction cavity;
- drawing air into the blower housing through the air induction cavity;
- directing the air into the air intake in the blower housing;
- and,
- preventing hot air from the associated engine from mixing with the air being drawn into the air intake, the mixing being prevented by first and second shield members.
Dependencies are inferred from the claim text.