JPH0231318U - - Google Patents
Info
- Publication number
- JPH0231318U JPH0231318U JP10841188U JP10841188U JPH0231318U JP H0231318 U JPH0231318 U JP H0231318U JP 10841188 U JP10841188 U JP 10841188U JP 10841188 U JP10841188 U JP 10841188U JP H0231318 U JPH0231318 U JP H0231318U
- Authority
- JP
- Japan
- Prior art keywords
- outlet pipe
- exhaust outlet
- chamber
- muffler
- expansion chamber
- 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
- 230000009977 dual effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Exhaust Silencers (AREA)
Description
第1図は本考案に係るデユアルモードマフラの
一実施例を示す断面図、第2図は第1図に示すデ
ユアルモードマフラの高速域における状態を示す
図、第3図はエンジン回転速度―音圧レベル・背
圧の関係を示す特性図である。
1…デユアルモードマフラ、2…マフラ本体、
3〜6…室、8…排気導入管、9〜11,13,
14…導管、12…排気導出管、15…バタフラ
イバルブ、16…弁体、17…リンク、20…制
御装置、21…アクチユエータ、22…制御回路
。
Fig. 1 is a sectional view showing an embodiment of the dual mode muffler according to the present invention, Fig. 2 is a diagram showing the state of the dual mode muffler shown in Fig. 1 in a high speed range, and Fig. 3 is a diagram showing engine rotation speed - noise. It is a characteristic diagram showing the relationship between pressure level and back pressure. 1...Dual mode muffler, 2...Muffler body,
3-6...chamber, 8...exhaust introduction pipe, 9-11, 13,
14... Conduit, 12... Exhaust outlet pipe, 15... Butterfly valve, 16... Valve body, 17... Link, 20... Control device, 21... Actuator, 22... Control circuit.
Claims (1)
される拡張室から当該拡張室に連通される共鳴室
を経て配設し、且つ当該排気導出管に装着したバ
ルブにより前記共鳴室と連通可能とし、エンジン
の低速域において前記バルブを閉弁し、エンジン
の高速域において前記バルブを開弁させて前記共
鳴室を拡張室に変更することを特徴とするデユア
ルモードマフラ。 The exhaust outlet pipe of the muffler is arranged from an expansion chamber to which the exhaust outlet pipe is connected to a resonance chamber that communicates with the expansion chamber, and is communicated with the resonance chamber by a valve attached to the exhaust outlet pipe. . A dual mode muffler, characterized in that the valve is closed in a low speed range of the engine and opened in a high speed range of the engine to change the resonance chamber to an expansion chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10841188U JPH0231318U (en) | 1988-08-18 | 1988-08-18 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10841188U JPH0231318U (en) | 1988-08-18 | 1988-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0231318U true JPH0231318U (en) | 1990-02-27 |
Family
ID=31343714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10841188U Pending JPH0231318U (en) | 1988-08-18 | 1988-08-18 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0231318U (en) |
-
1988
- 1988-08-18 JP JP10841188U patent/JPH0231318U/ja active Pending