Exhaust silencer system

Details Exhaust silencer system Exhaust silencer system

2005-03-22

2005-03-22

Hsieh, Shih-Yung (Department: 2837)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S247000, C181S248000, C181S251000, C181S252000, C181S257000, C181S256000, C181S268000, C181S227000, C181S228000

Reexamination Certificate

active

06868939

ABSTRACT:
An improved exhaust system for an internal combustion engine generally comprises two expanding megaphones, separated by a dual core annular flow silencing section. The two or split megaphone design facilitates broadening of the time of the negative pressure wave to provide a desirable broad range power output while substantially reducing obnoxious sound output.

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