Air cleaner boattail
AssigneePACCAR Inc
InventorJeffrey P. Smith
Life of this patent
Estimating the term…
Abstract
An air cleaner suitable for use with a heavy-duty vehicle includes a cylindrical body that can be mounted to the vehicle so that the body is exposed to an air stream when the vehicle moves in a forward direction. The air cleaner has a boattail, which includes a fin attached to a rear portion of the body. The fin has a vertical orientation and extends in a substantially rearward direction from the body. When the vehicle moves in a forward direction, the boattail reduces the amount of low-pressure air located behind the air cleaner.
Claims21
An air cleaner for a heavy-duty vehicle, the air cleaner comprising:
- (a) a cylindrical body vertically mountable to the vehicle to be exposed to an air stream when the vehicle moves in a forward direction;
- and
- (b) a boattail comprising a vertically oriented fin extending in a substantially rearward direction from a rear portion of the body, wherein the boattail reduces an amount of low pressure air located rearward of the air cleaner when the vehicle moves in a forward direction.
An air cleaner for a heavy-duty vehicle, the vehicle having a cab and a vertical exhaust stack located proximate to a side of the cab, the air cleaner comprising:
- (a) a cylindrical body vertically mountable to the vehicle forward of the exhaust stack;
- and
- (b) a boattail comprising a fin attached to a rear portion of the body, the fin being vertically oriented and extending in a substantially rearward direction from the body, wherein the boattail reduces a flow of air that impinges the exhaust stack when the vehicle is traveling in a forward direction.
An air cleaner for a heavy-duty vehicle, the air cleaner comprising:
- (a) a cylindrical body mountable to the vehicle to be exposed to an air stream when the vehicle moves in a forward direction;
- and
- (b) a boattail comprising:
- (i) a first fin extending rearwardly from the body, the fin being vertically oriented and located outboard of a centerline of the body;
- and
- (ii) a second fin extending rearwardly from the body, the second fin being vertically oriented and located inboard of the centerline of the body, wherein the first fin and the second fin reduce an amount of low-pressure air located rearward of the air cleaner when the vehicle moves in a forward direction.
Dependencies are inferred from the claim text.