Noise suppression in the intake system of an internal combustion

Details Noise suppression in the intake system of an internal combustion Noise suppression in the intake system of an internal combustion

1997-05-01

1998-03-03

Okonsky, David A.

Internal-combustion engines

Intake manifold

123590, F02M 2900

Patent

active

057223572

ABSTRACT:
An air diffuser (20) and method of operation 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.

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patent: 4672940 (1987-06-01), Nakayama et al.
patent: 5501192 (1996-03-01), Cutler

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