JPH01152011U - - Google Patents

Info

Publication number
JPH01152011U
JPH01152011U JP5030188U JP5030188U JPH01152011U JP H01152011 U JPH01152011 U JP H01152011U JP 5030188 U JP5030188 U JP 5030188U JP 5030188 U JP5030188 U JP 5030188U JP H01152011 U JPH01152011 U JP H01152011U
Authority
JP
Japan
Prior art keywords
muffler
microphone
amplifier
output
exhaust port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5030188U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP5030188U priority Critical patent/JPH01152011U/ja
Publication of JPH01152011U publication Critical patent/JPH01152011U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Description

【図面の簡単な説明】
第１図は本考案に係る消音装置の一実施例を示
した概念図、第２図ａはマフラにおける排気音の
波形を例示した図、同図ｂはスピーカより放出さ
れる音波の波形を例示した図である。 １……マフラ、１ａ……排気口、２……マイク
ロフオン、３……スピーカ、４……反転増幅器。

Claims (1)

  1. 【実用新案登録請求の範囲】 マフラの排気口近傍に配設され、該マフラの排
    気音を収集するマイクロフオンと、 上記マイクロフオンの出力の位相を反転する増
    幅器と、 上記マフラの排気口近傍に配設され、上記増幅
    器の出力で駆動されるスピーカと を備えることを特徴とする消音装置。
JP5030188U 1988-04-14 1988-04-14 Pending JPH01152011U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5030188U JPH01152011U (ja) 1988-04-14 1988-04-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5030188U JPH01152011U (ja) 1988-04-14 1988-04-14

Publications (1)

Publication Number Publication Date
JPH01152011U true JPH01152011U (ja) 1989-10-19

Family

ID=31276356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5030188U Pending JPH01152011U (ja) 1988-04-14 1988-04-14

Country Status (1)

Country Link
JP (1) JPH01152011U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010024876A (ja) * 2008-07-16 2010-02-04 Toda Constr Co Ltd 建設機械のエンジン騒音消音装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010024876A (ja) * 2008-07-16 2010-02-04 Toda Constr Co Ltd 建設機械のエンジン騒音消音装置

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