JPH0368513U - - Google Patents
Info
- Publication number
- JPH0368513U JPH0368513U JP12791289U JP12791289U JPH0368513U JP H0368513 U JPH0368513 U JP H0368513U JP 12791289 U JP12791289 U JP 12791289U JP 12791289 U JP12791289 U JP 12791289U JP H0368513 U JPH0368513 U JP H0368513U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- partition plate
- muffler
- resonator
- 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
- 238000005192 partition Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Description
第１図は本考案を自動車エンジンの排気ガスに
適用した一実施例を示す縦断面図、第２図、第３
図はそれぞれ第１図の可動開口板の駆動構造を示
す正面図、第４図は第１図の可動開口板の駆動要
領を示すフローチヤート、第５図は第２〜３図の
エンジン回転数と可動開口板の代表寸法との関係
を示す線図である。第６図は公知の自動車エンジ
ンの回転数と排気ガス騒音の基本周波数との関係
を示す線図、第７図は公知のレゾネーターを示す
モデル図、第８図は第７図のレゾネーターのスロ
ートの代表寸法と共鳴周波数との関係を示す線図
、第９図は公知の多レゾネーター式マフラーを示
す縦断面図である。
１……マフラー、２……仕切板、３……レゾネ
ーター室、４……排気ガス導入室、５……排気ガ
ス流入管、６……排気ガス流出管、７……流速セ
ンサー及び温度センサー、８……可動開口板、９
……モーター、１０……コントロールユニツト、
１１，１２……開口、１４……ギアセグメント、
１５……ピニオン、１８……可動板、１９……ラ
ツク。
Fig. 1 is a vertical cross-sectional view showing an embodiment in which the present invention is applied to exhaust gas from an automobile engine, Fig. 2, Fig. 3
The figures are respectively a front view showing the drive structure of the movable aperture plate in Fig. 1, Fig. 4 is a flowchart showing the drive procedure for the movable aperture plate in Fig. 1, and Fig. 5 is the engine rotation speed in Figs. 2 and 3. FIG. 3 is a diagram showing the relationship between the size of the movable aperture plate and the representative dimensions of the movable aperture plate. Fig. 6 is a diagram showing the relationship between the rotational speed of a known automobile engine and the fundamental frequency of exhaust gas noise, Fig. 7 is a model diagram showing a known resonator, and Fig. 8 is a diagram showing the relationship between the rotation speed of a known automobile engine and the fundamental frequency of exhaust gas noise. A diagram showing the relationship between representative dimensions and resonance frequency, and FIG. 9 is a longitudinal sectional view showing a known multi-resonator muffler. 1...Muffler, 2...Partition plate, 3...Resonator chamber, 4...Exhaust gas introduction chamber, 5...Exhaust gas inflow pipe, 6...Exhaust gas outflow pipe, 7...Flow rate sensor and temperature sensor, 8...Movable aperture plate, 9
...Motor, 10...Control unit,
11, 12...opening, 14...gear segment,
15...Pinion, 18...Movable plate, 19...Rack.
Claims (1)
入室とに仕切る仕切板と、内端がそれぞれ上記マ
フラーを貫通して上記排気ガス導入室に開口する
排気ガス流入管、排気ガス流出管と、上記仕切板
に付設され、同仕切板に穿設された開口の大きさ
を変化する可変開口板とを具えたことを特徴とす
る可変レゾネーター式マフラー。 a partition plate that partitions the inside of the muffler into a resonator chamber and an exhaust gas introduction chamber; an exhaust gas inflow pipe and an exhaust gas outlet pipe whose inner ends penetrate the muffler and open into the exhaust gas introduction chamber; and the partition plate. A variable resonator type muffler characterized by comprising a variable opening plate attached to the partition plate and changing the size of an opening bored in the partition plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12791289U JPH0368513U (en) | 1989-11-02 | 1989-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12791289U JPH0368513U (en) | 1989-11-02 | 1989-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0368513U true JPH0368513U (en) | 1991-07-05 |
Family
ID=31675650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12791289U Pending JPH0368513U (en) | 1989-11-02 | 1989-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0368513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005203962A (en) * | 2004-01-14 | 2005-07-28 | Hitachi Cable Ltd | Polarization diversity dipole antenna |
-
1989
- 1989-11-02 JP JP12791289U patent/JPH0368513U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005203962A (en) * | 2004-01-14 | 2005-07-28 | Hitachi Cable Ltd | Polarization diversity dipole antenna |
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