ENGINE HOOD

PROBLEM TO BE SOLVED: To widely reduce noise in a low frequency zone in an engine room.SOLUTION: A porous part 3a having a number of through holes is provided at an inner panel 3 which is joined to an outer panel 2 so as to form a space 4 with the outer panel 2 and forms an inner portion of an engin...

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Bibliographic Details
Main Authors YAMAGIWA ICHIRO, YAMAGUCHI ZENZO
Format Patent
LanguageEnglish
Japanese
Published 24.08.2015
Subjects
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To widely reduce noise in a low frequency zone in an engine room.SOLUTION: A porous part 3a having a number of through holes is provided at an inner panel 3 which is joined to an outer panel 2 so as to form a space 4 with the outer panel 2 and forms an inner portion of an engine hood 1. An outer air introduction hole 5 which introduces outer air into the space 4 is provided at the engine hood 1. 【課題】エンジンルーム内の低周波帯域の騒音を幅広く低減させることができるようにする。【解決手段】アウタパネル２との間に空間４を形成するようにアウタパネル２に接合されて、エンジンフード１の内側部分を構成するインナパネル３には、多数の貫通孔を有する多孔部３ａが設けられており、エンジンフード１には、外気を空間４内に導入する外気導入穴５が設けられている。【選択図】図１
Bibliography:Application Number: JP20140025737