Engine air intake system with resilient coupling having internal noise attenuation tuning
AssigneeGM Global Technology Operations LLC
InventorGregory P. Prior
Life of this patent
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Abstract
An engine air intake system, which may include a supercharger or other air-handling device, includes a resilient coupling connecting an air intake connector, such as a throttle body, and an air inlet duct. The resilient coupling includes a bellows convolution for allowing limited motion between connected components. The coupling is molded with tuning volumes and connecting passages within the convolution with open sides to allow removal from the mold die. An associated connector closes the chambers upon assembly and forms noise reduction tuning for high frequency air pressure waves.
Claims10
An engine air intake system with internal noise reduction tuning, the system comprising:
- a generally tubular resilient coupling including an enlarged intermediate portion forming a generally annular recess connecting inwardly with an axial air passage through the coupling, generally radial walls dividing the recess into a plurality of generally arcuate circumferentially spaced chambers having inwardly open sides, each chamber connected through a neck passage with the axial air passage, and an annular flange extending axially from an end of the intermediate portion;
- and
- a tubular connector seemingly received within the annular flange and having an inner end engaging the chambers and closing their open sides to form tuning volumes in the coupling and connected by their neck passages with the axial air passage to provide tuning of selected airflow pressure wave frequencies generated in the system.
Dependencies are inferred from the claim text.