JPS60131470U

JPS60131470U - Engine noise reduction device

Info

Publication number: JPS60131470U
Application number: JP1971984U
Authority: JP
Inventors: 良一中川; 大堀　純一
Original assignee: 日産自動車株式会社
Priority date: 1984-02-13
Filing date: 1984-02-13
Publication date: 1985-09-03

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来例を示すもので、ａは断面説明図、ｂは要
部斜視図、第２区は第１の実施例を示　−すもので、ａ
は断面説明図、ｂは要部斜視図、第３図は第２の実施例
を示すもので、ａは断面説明図、ｂは要部斜視図である
。１・・・エンジン、４・・・サイドフレーム（車体側）
、１０．２０・・・アンダカバ、１１．２２・・・多孔
質吸音板、１２．２４・・・穴あき板、１５．２６　　
　　−°°°穴、２訃０°ルーバ。　　　　　　　　　
　　□−−−箋２劇 −ｑに） −（ａ）　　　　　　Ｍ／ノ汐（１，）−− （ｂ）FIG. 1 shows a conventional example, in which a is an explanatory cross-sectional view, b is a perspective view of a main part, and the second section is a first embodiment.
3 is an explanatory cross-sectional view, b is a perspective view of the main part, and FIG. 3 shows the second embodiment, a is an explanatory cross-sectional view, and b is a perspective view of the main part. 1...Engine, 4...Side frame (vehicle side)
, 10.20... Undercover, 11.22... Porous sound absorbing board, 12.24... Perforated board, 15.26
−°°°hole, 2 0°louvers.
□ --- Note 2 Drama - q) - (a) M / Noshio (1,) -- (b)

Claims

[Scope of utility model registration request]

(1) Covering the lower part of the engine with an undercover consisting of a porous sound-absorbing plate and a perforated plate arranged below the sound-absorbing plate,
An engine noise reduction device characterized in that an end portion of the anti-cover is supported on a vehicle body side.

(2) A utility model registration claim in which a perforated plate is formed with a louver extending diagonally backward from the front edge of the hole;
The engine noise reduction device described in Disciple 1. −