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
Links
- 230000030279 gene silencing Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Exhaust Silencers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
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。
Fig. 1 is a conceptual diagram showing an embodiment of the silencing device according to the present invention, Fig. 2a is a diagram illustrating the waveform of exhaust sound in a muffler, and Fig. 2b is a diagram illustrating the waveform of the sound wave emitted from the speaker. This is a diagram. 1...muffler, 1a...exhaust port, 2...microphone, 3...speaker, 4...inverting amplifier.
Claims (1)
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。[Claims for Utility Model Registration] A microphone disposed near the exhaust port of the muffler to collect the exhaust sound of the muffler; an amplifier for inverting the phase of the output of the microphone; and a microphone disposed near the exhaust port of the muffler; A silencing device characterized by comprising: a speaker arranged therein and driven by the output of the amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5030188U JPH01152011U (en) | 1988-04-14 | 1988-04-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5030188U JPH01152011U (en) | 1988-04-14 | 1988-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01152011U true JPH01152011U (en) | 1989-10-19 |
Family
ID=31276356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5030188U Pending JPH01152011U (en) | 1988-04-14 | 1988-04-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01152011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010024876A (en) * | 2008-07-16 | 2010-02-04 | Toda Constr Co Ltd | Engine noise silencer of construction machine |
-
1988
- 1988-04-14 JP JP5030188U patent/JPH01152011U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010024876A (en) * | 2008-07-16 | 2010-02-04 | Toda Constr Co Ltd | Engine noise silencer of construction machine |
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