JPS5928619U - Internal combustion engine exhaust gas purification device - Google Patents
Internal combustion engine exhaust gas purification deviceInfo
- Publication number
- JPS5928619U JPS5928619U JP12305982U JP12305982U JPS5928619U JP S5928619 U JPS5928619 U JP S5928619U JP 12305982 U JP12305982 U JP 12305982U JP 12305982 U JP12305982 U JP 12305982U JP S5928619 U JPS5928619 U JP S5928619U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- exhaust
- internal combustion
- gas purification
- pipe
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示す概略平面図、第２図は
同第１、第２触媒装置間の部分を示す縦断面図、第３図
は第２図の■−■線断面図、第４図は本考案の他の実施
例を示す排気管の２次空気供給孔部分を示す横断面図、
第５図は２次空気供給管長と２次空気供給量との関係を
示す図である。
１・・・内燃機関、１ａ・・・排気ポート、２・・・排
気系、３・・・排気マニホールド、４・・・第１触媒装
置、５・・・第２触媒装置、６・・・排気管、７・・・
内管、７ａ・・・ベンチュリ部、７ｂ・・・２次空気供
給孔、８・・・外管、８ａ・・・孔、９・・・隙間、１
０・・・２次空気供給装置、１１・・・２次空気供給管
、１２・・・逆流防止弁。Fig. 1 is a schematic plan view showing an embodiment of the present invention, Fig. 2 is a vertical cross-sectional view showing a portion between the first and second catalyst devices, and Fig. 3 is a cross-sectional view taken along the line ■-■ in Fig. 2. 4 is a cross-sectional view showing a secondary air supply hole portion of an exhaust pipe showing another embodiment of the present invention,
FIG. 5 is a diagram showing the relationship between the length of the secondary air supply pipe and the amount of secondary air supplied. DESCRIPTION OF SYMBOLS 1... Internal combustion engine, 1a... Exhaust port, 2... Exhaust system, 3... Exhaust manifold, 4... First catalyst device, 5... Second catalyst device, 6... Exhaust pipe, 7...
Inner pipe, 7a... Venturi part, 7b... Secondary air supply hole, 8... Outer tube, 8a... Hole, 9... Gap, 1
0... Secondary air supply device, 11... Secondary air supply pipe, 12... Backflow prevention valve.
Claims (1)
ス下流側に設けた第２触媒装置とを内外２重管構造の排
気管で接続し、この排気管の内、外管間の隙間の排気ガ
ス上流端部に排気脈動を利用した２次空気供給装置を連
通させ、前記排気管の内管の排気ガス下流端部に設けた
ベンチュリ部に２次空気供給孔を形成したことを特徴と
する内燃機関の排気ガス浄化装置。A first catalytic device installed in the exhaust system and a second catalytic device installed on the downstream side of the exhaust gas from the catalytic device are connected by an exhaust pipe having a dual-internal and external-pipe structure, and the gap between the inner and outer pipes of the exhaust pipe is A secondary air supply device using exhaust pulsation is communicated with the upstream end of the exhaust gas, and a secondary air supply hole is formed in a venturi section provided at the exhaust gas downstream end of the inner pipe of the exhaust pipe. Exhaust gas purification device for internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12305982U JPS5928619U (en) | 1982-08-13 | 1982-08-13 | Internal combustion engine exhaust gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12305982U JPS5928619U (en) | 1982-08-13 | 1982-08-13 | Internal combustion engine exhaust gas purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5928619U true JPS5928619U (en) | 1984-02-22 |
Family
ID=30281048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12305982U Pending JPS5928619U (en) | 1982-08-13 | 1982-08-13 | Internal combustion engine exhaust gas purification device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5928619U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5219070U (en) * | 1975-07-30 | 1977-02-10 |
-
1982
- 1982-08-13 JP JP12305982U patent/JPS5928619U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5219070U (en) * | 1975-07-30 | 1977-02-10 |
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