Sound increase apparatus

Details Sound increase apparatus Sound increase apparatus

2008-04-08

2008-04-08

Huynh, Hai (Department: 3747)

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

C123S184530, C123S184560

Reexamination Certificate

active

11528244

ABSTRACT:
A sound increase apparatus includes a first hollow body member that communicates with an intake flow path of an internal combustion engine, a second hollow body member that communicates with the first hollow body member, and a vibration member capable of vibrating in an out-of-plane direction, which is inserted in a connection between the first and second hollow body members and closes a cross section of the connection. The second hollow body member has a plurality of opening portions, each of which communicates with the air.

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