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US 7,353,791 B2Granted
Sound increase apparatus
AssigneeNissan Motor Co., Ltd.
InventorsAkira Sasaki, Hiroyuki Abe
Life of this patent
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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.
Claims23
A sound increase apparatus comprising:
- 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 inserted and secured in a connection between the first and second hollow body members and vibrating in an out-of-plane direction while constantly closing a cross section of the connection of the first and second hollow body members, wherein
- the second hollow body member has a plurality of opening portions which directly communicate with outside air.
2 more elements
A sound increase apparatus comprising:
- a hollow body member that communicates with an intake flow path of an internal combustion engine and has a plurality of opening portions, each of which directly communicates with the outside air;
- and
- a vibration member vibrating in an out-of-plane direction, which is inserted in the hollow body member and constantly closes a cross section of the hollow body member, wherein
- a sound produced by air flowing through the intake flow path and conveyed via the vibration member is emitted separately from the plurality of opening portions.
1 more element
Dependencies are inferred from the claim text.