JPH0482312U - - Google Patents
Info
- Publication number
- JPH0482312U JPH0482312U JP12427490U JP12427490U JPH0482312U JP H0482312 U JPH0482312 U JP H0482312U JP 12427490 U JP12427490 U JP 12427490U JP 12427490 U JP12427490 U JP 12427490U JP H0482312 U JPH0482312 U JP H0482312U
- Authority
- JP
- Japan
- Prior art keywords
- branch pipe
- exhaust pipe
- pipe
- drive device
- crank angle
- 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
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000003584 silencer Effects 0.000 claims 1
Landscapes
- Exhaust Silencers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
第１図は実施例の全体図、第２図は従来例の全
体図である。
１……機関排気管、２……枝管、３……排気マ
ンホールド、４……機関本体、５……クランク軸
角度センサ、６……温度センサ、７……ピストン
音源、８……駆動装置、９……演算装置、１０…
…２次音源、１１……音圧センサ、１２……音圧
センサ。
FIG. 1 is an overall view of the embodiment, and FIG. 2 is an overall view of the conventional example. 1... Engine exhaust pipe, 2... Branch pipe, 3... Exhaust manhold, 4... Engine body, 5... Crankshaft angle sensor, 6... Temperature sensor, 7... Piston sound source, 8... Drive Device, 9... Arithmetic device, 10...
...Secondary sound source, 11...Sound pressure sensor, 12...Sound pressure sensor.
Claims (1)
可変の枝管と、該枝管内に組込まれた音源と、該
音源のコントロール手段と、前記枝管の有効長さ
を調整する駆動装置と、クランク角度センサと、
前記排気管及び枝管に設けられた温度センサと、
前記排気管及び枝管に設けられた音圧センサと、
前記クランク角度センサ、温度センサ及び音圧セ
ンサの信号を受けて演算し前記駆動装置に動作信
号を出す演算装置とを有して成るアクテイブサイ
レンサ。 A branch pipe with a variable effective length that is branched from an exhaust pipe of an internal combustion engine, a sound source built into the branch pipe, a control means for the sound source, and a drive device that adjusts the effective length of the branch pipe. , crank angle sensor,
a temperature sensor provided in the exhaust pipe and the branch pipe;
a sound pressure sensor provided in the exhaust pipe and the branch pipe;
An active silencer comprising: a calculation device that receives signals from the crank angle sensor, temperature sensor, and sound pressure sensor, performs calculations, and outputs an operation signal to the drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12427490U JPH0482312U (en) | 1990-11-28 | 1990-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12427490U JPH0482312U (en) | 1990-11-28 | 1990-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0482312U true JPH0482312U (en) | 1992-07-17 |
Family
ID=31871933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12427490U Pending JPH0482312U (en) | 1990-11-28 | 1990-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0482312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07319481A (en) * | 1994-05-27 | 1995-12-08 | Yanmar Diesel Engine Co Ltd | Electronic muffling device |
-
1990
- 1990-11-28 JP JP12427490U patent/JPH0482312U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07319481A (en) * | 1994-05-27 | 1995-12-08 | Yanmar Diesel Engine Co Ltd | Electronic muffling device |