JPH0231319U - - Google Patents
Info
- Publication number
- JPH0231319U JPH0231319U JP10841288U JP10841288U JPH0231319U JP H0231319 U JPH0231319 U JP H0231319U JP 10841288 U JP10841288 U JP 10841288U JP 10841288 U JP10841288 U JP 10841288U JP H0231319 U JPH0231319 U JP H0231319U
- Authority
- JP
- Japan
- Prior art keywords
- conduit
- resonance chamber
- chamber
- connect
- muffler
- 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
- 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…バルブ、
１６…弁体、１７…リンク、２０…制御装置、２
１…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... Valve,
16... Valve body, 17... Link, 20... Control device, 2
1... Actuator, 22... Control circuit.
Claims (1)
される拡張室及び当該拡張室に連通される共鳴室
を貫通させてマフラ本体の外に突出させ、一端を
彎曲させて前記共鳴室に連続接続した第１の導管
と、前記拡張室から前記共鳴室を貫通して前記第
１の導管の彎曲部に連通接続される第２の導管と
により形成し、且つ前記第１、第２の導管の連通
部分に装着したバルブにより前記第１の導管に前
記共鳴室又は前記第２の通路を選択的に接続可能
とし、エンジンの低速域において前記バルブを閉
弁させて前記第１の導管に第２の導管を接続し、
エンジンの高速域において前記バルブを開弁させ
て前記第１の導管に前記共鳴室を接続し、当該共
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 passed through the expansion chamber to which the exhaust outlet pipe is connected and the resonance chamber communicated with the expansion chamber to protrude outside the muffler body, and one end is curved to continuously connect to the resonance chamber. and a second conduit that passes from the expansion chamber through the resonance chamber and is connected to the curved part of the first conduit, and The resonance chamber or the second passage can be selectively connected to the first conduit by a valve attached to the communication part, and the valve is closed in the low speed range of the engine to connect the first conduit to the second conduit. Connect the conduit of
A dual mode muffler, characterized in that in a high speed range of the engine, the valve is opened to connect the resonance chamber to the first conduit, and change the resonance chamber into an expansion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10841288U JPH075216Y2 (en) | 1988-08-18 | 1988-08-18 | Dual mode muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10841288U JPH075216Y2 (en) | 1988-08-18 | 1988-08-18 | Dual mode muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0231319U true JPH0231319U (en) | 1990-02-27 |
| JPH075216Y2 JPH075216Y2 (en) | 1995-02-08 |
Family
ID=31343716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10841288U Expired - Lifetime JPH075216Y2 (en) | 1988-08-18 | 1988-08-18 | Dual mode muffler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075216Y2 (en) |
-
1988
- 1988-08-18 JP JP10841288U patent/JPH075216Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH075216Y2 (en) | 1995-02-08 |