Patent ID: 9605632
Date: 2017-03-28
CPC Classifications: F02M

Claim:
1. A resonator for attenuating sound waves produced by an engine, the resonator comprising: a resonator housing including a plurality of resonance chambers in an interior of the resonator housing; and a tubular neck having an outer shell radially surrounding plurality of distinct air paths within an interior of the outer shell, the tubular neck extending from the resonator housing outwardly to a first end for providing fluid communication between the resonator housing and an air duct, the tubular neck further including wherein the resonator is operable to attenuate sound waves produced by the engine, wherein the tubular partition radially encloses and defines a first air path of the plurality of distinct air paths within an interior of the tubular partition, the first air path opening at a first end of the tubular partition to communicate with the air duct, the first air path opening at an opposite second end of the tubular partition into a first resonance chamber of the plurality of resonance chambers, wherein a second air path of the plurality of distinct air paths is arranged radially between an outer surface of the tubular partition and an inner surface of the tubular neck, the second air path opening at a first end to communicate with the air duct, the second air path opening within the resonator housing into a second resonance chamber of the plurality of resonance chambers.