Air induction sound modification system for internal...

Details Air induction sound modification system for internal... Air induction sound modification system for internal...

2011-06-28

2011-06-28

Phillips, Forrest M (Department: 2832)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S214000, C181S240000, C181S224000, C123S184540, C123S184530, C123S184550, C123S184560, C123S184570

Reexamination Certificate

active

07967106

ABSTRACT:
An air induction sound modification system for an internal combustion engine includes a multi-frequency sound suppression unit having Helmholtz resonators and a multi-component expansion chamber. A sound generator, which functions to radiate sound at a desirable, tuned frequency, extends between the multi-function sound suppression unit and a second expansion chamber, such as an air cleaner box.

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