Noise suppression vanes in the intake system of an internal combustion engine
AssigneeFord Global Technologies, LLC
InventorMichael Choi
Life of this patent
Estimating the term…
Abstract
An air diffuser (20) for an air intake system of an internal combustion engine. The air intake system includes a throttle body (22) up stream from an intake manifold (24), with the air diffuser (20) mounted between them. The air diffuser (20) includes vanes (62, 64) extending into its main bore (52) in order to diffuse and redirect the air flowing from the throttle body (22) into the intake manifold (24). The diffusion and redirection of the air reduces the noise emanating from the intake manifold (24) for particular engine operating conditions.
Claims20
An air diffuser adapted for use with an air intake system of an internal combustion engine including a throttle body and an air intake manifold, the air diffuser comprising:
- a flat plate portion including a bore wall defining a main bore for the passage of air;
- a plurality of vanes forming a first set, spaced from one another and extending parallel to one another from a portion of the bore wall into the main bore;
- and
- means adapted for mounting the flat plate portion between the throttle body and the air intake manifold.
An air intake system for controlling the flow of air into an internal combustion engine comprising:
- a throttle body including a first bore wall defining a first portion of a main air bore and a valve mounted within the first portion of the main air bore, with the valve being movable to selectively restrict the flow of air through the main air bore,
- an intake manifold including a second bore wall defining a second portion of the main air bore and means for mounting the throttle body relative to the intake manifold such that the first and the second portions of the main air bore align with one another;
- and
- a plurality of parallel vanes spaced from one another and forming a first set extending from one of the portions of the main air bore wall into the main air bore between the valve in the throttle body and a portion of the intake plenum.
An air intake system for controlling the flow of air into an internal combustion engine comprising:
- a throttle body including a first bore wall defining a first portion of a main air bore and a valve mounted within the first portion of the main air bore, with the valve being movable to selectively restrict the flow of air through the main air bore;
- an intake manifold including a second bore wall defining a second portion of the main air bore and means for mounting the throttle body relative to the intake manifold such that the first and the second portions of the main air bore align with one another;
- and
- an air diffuser plate having a third bore wall defining a third portion of the main air bore aligned with the first and the second portions of the main air bore, with the air diffuser plate mounted between the throttle body and the intake manifold;
- a plurality of parallel vanes spaced from one another and forming a first set extending from the third bore wall into the main air bore;
- and a plurality of parallel vanes, spaced from one another, forming a second set and extending from a different portion of the third bore wall than the first set into the main air bore.
Dependencies are inferred from the claim text.