Patent ID: 9366173
Filing Date: 2016-06-14
CPC Classification: F01N,F02B,F02M

Claim Text:
1. A resonator for attenuating sound waves produced by an engine, the resonator comprising: a resonator housing including first, second and third portions defining first, second and third working chambers, respectively; wherein the first, second and third portions cooperate to define a substantially T-shaped resonator operable to attenuate sound produced by the engine; the resonator is adapted to attenuate sound waves produced by the engine having at least two different frequencies; a coupling member having a first opening, a second opening and a third opening, wherein the first, second and third portions extend from the first, second and third openings, respectively; wherein the first portion has a first end connected to an air induction system of the engine, and a second end connected to and in fluid communication with the coupling member; wherein the second and third portions each have a first end connected to and in fluid communication with the coupling member and are oriented generally perpendicular to the first portion; wherein the second end of the first portion is arranged to slide within or otherwise telescope relative to the coupling member such that the length of the first portion is adjustable for tuning the resonator.