JPS62119412U - - Google Patents
Info
- Publication number
- JPS62119412U JPS62119412U JP695586U JP695586U JPS62119412U JP S62119412 U JPS62119412 U JP S62119412U JP 695586 U JP695586 U JP 695586U JP 695586 U JP695586 U JP 695586U JP S62119412 U JPS62119412 U JP S62119412U
- Authority
- JP
- Japan
- Prior art keywords
- pulsation
- engine
- exhaust
- reduction device
- noise reduction
- 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.)
- Granted
Links
- 230000010349 pulsation Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
第１図は本考案の要部の一実施例であり、同図
ａは平面図、同図ｂは正面図、同図ｃは側面図、
第２図は本考案の一実施例における全体系統図、
第３図は本考案の変形例であり、同図ａは排気ガ
スの流れを示す説明図、同図ｂはスピーカから発
生した音の波面伝播状態を示す説明図である。
１はスピーカ（脈動発生器）、２は排気通路、
５，６はケーシング片、７は第１整流板、８は第
２整流板、９，１０は圧力センサ（脈動検出器）
、１１は出力脈動排出口、１２は開孔部、１７は
開口部である。
Figure 1 shows an embodiment of the main part of the present invention, in which figure a is a plan view, figure b is a front view, figure c is a side view,
Figure 2 is an overall system diagram of an embodiment of the present invention.
FIG. 3 shows a modification of the present invention; FIG. 3A is an explanatory diagram showing the flow of exhaust gas, and FIG. 3B is an explanatory diagram showing the state of wavefront propagation of sound generated from a speaker. 1 is a speaker (pulsation generator), 2 is an exhaust passage,
5 and 6 are casing pieces, 7 is a first rectifier plate, 8 is a second rectifier plate, and 9 and 10 are pressure sensors (pulsation detectors).
, 11 is an output pulsation outlet, 12 is an opening, and 17 is an opening.
Claims (1)
により、逆位相の脈動波を、排気通路に接続した
脈動発生器から出力してエンジンの排気音を低減
するエンジンの排気音低減装置において、排気通
路と脈動発生器との接続系路に、排気ガス流の乱
れを制御する整流板を設けたことを特徴とするエ
ンジンの排気音低減装置。 In an engine exhaust noise reduction device that reduces engine exhaust noise by outputting an opposite phase pulsation wave from a pulsation generator connected to the exhaust passage based on an output signal from a pulsation detector that detects exhaust pulsation, An exhaust noise reduction device for an engine, characterized in that a rectifier plate is provided in a connection line between the engine and the pulsation generator to control disturbances in the flow of exhaust gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP695586U JPH0437218Y2 (en) | 1986-01-20 | 1986-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP695586U JPH0437218Y2 (en) | 1986-01-20 | 1986-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62119412U true JPS62119412U (en) | 1987-07-29 |
| JPH0437218Y2 JPH0437218Y2 (en) | 1992-09-02 |
Family
ID=30789956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP695586U Expired JPH0437218Y2 (en) | 1986-01-20 | 1986-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0437218Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0270195A (en) * | 1988-09-05 | 1990-03-09 | Hitachi Plant Eng & Constr Co Ltd | Electronic noise silencing system |
-
1986
- 1986-01-20 JP JP695586U patent/JPH0437218Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0270195A (en) * | 1988-09-05 | 1990-03-09 | Hitachi Plant Eng & Constr Co Ltd | Electronic noise silencing system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0437218Y2 (en) | 1992-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62119412U (en) | ||
| JPS61131189U (en) | ||
| JPS62117213U (en) | ||
| JPS63190512U (en) | ||
| JPS63110612U (en) | ||
| JPS63118321U (en) | ||
| JPS63190511U (en) | ||
| JPH0369996U (en) | ||
| JPS6370785U (en) | ||
| JPS6441664U (en) | ||
| JPS63113759U (en) | ||
| JPH01113692U (en) | ||
| JPS59190926U (en) | Structure of the connection between exhaust turbine and catalytic converter in internal combustion engine | |
| JPH01113693U (en) | ||
| JPS63183469U (en) | ||
| JPS60108754U (en) | engine intake system | |
| JPS6274299U (en) | ||
| JPH0274514U (en) | ||
| JPH026005U (en) | ||
| JPS646540U (en) | ||
| JPH0263016U (en) | ||
| JPS61200421U (en) | ||
| JPH0223192U (en) | ||
| JPH0473838U (en) | ||
| JPS61184810U (en) |