JPS597251U - Internal combustion engine exhaust gas purification device - Google Patents
Internal combustion engine exhaust gas purification deviceInfo
- Publication number
- JPS597251U JPS597251U JP10174782U JP10174782U JPS597251U JP S597251 U JPS597251 U JP S597251U JP 10174782 U JP10174782 U JP 10174782U JP 10174782 U JP10174782 U JP 10174782U JP S597251 U JPS597251 U JP S597251U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- air
- air bleed
- internal combustion
- bleed passage
- 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
- Control Of The Air-Fuel Ratio Of Carburetors (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図は排気ガス浄化効率を示す線図、第２図は機関吸
気通路
矢印■に沿ってみた平面図、第４図はサクションピスト
ンの側面断面図、第５図は空燃比の変動を示す線図であ
る。
２・・晶・気化器、８・・・・・・サクションピストン
、９・・・・・・ニードル、２５・・・・・・燃料通路
、２８・・・・・・ノズル、３５．３６・・曲エアブリ
ード通路、５ｏ・・・・・・電磁弁、６４・・・・・・
スｂットルスイッチ。Figure 1 is a diagram showing exhaust gas purification efficiency, Figure 2 is a plan view taken along the arrow ■ in the engine intake passage, Figure 4 is a side sectional view of the suction piston, and Figure 5 shows fluctuations in the air-fuel ratio. It is a line diagram. 2... Crystal carburetor, 8... Suction piston, 9... Needle, 25... Fuel passage, 28... Nozzle, 35.36.・Curved air bleed passage, 5o...Solenoid valve, 64...
throttle switch.
Claims (1)
三元触媒コンバータを取付け、該気化器の燃料通路にエ
アブリード通路を連結して該エアブリード通路から燃料
通路内に空気を供給するようにした内燃機関において、
上記エアブリード通路内に該エアブリード通路をほぼｌ
Ｈｚから２Ｈｚの一定周波数で開閉する電磁弁を配置し
、該エアブリード通路を開閉した際に空燃比が平均値に
対してほぼ±０．２から±１゜Ｏの間で周期的に変動す
−るようにエアブリード通路の流れ抵抗を定めると共に
上記空燃比の平均値がほぼ理論空燃比となるように気化
器を設定し、更に機関アイドリング運転を検出するアイ
ドリング検出器を設けて機関アイドリング検出器に上記
電磁弁を閉弁保持するようにした内燃機関の排気ガス浄
化装置。A carburetor is installed in the engine intake passage, a three-way catalytic converter is installed in the engine exhaust passage, and an air bleed passage is connected to the fuel passage of the carburetor, so that air is supplied from the air bleed passage into the fuel passage. In internal combustion engines,
Insert the air bleed passage into the air bleed passage approximately 1
A solenoid valve that opens and closes at a constant frequency of Hz to 2Hz is installed, and when the air bleed passage is opened and closed, the air-fuel ratio periodically fluctuates between approximately ±0.2 and ±1°O with respect to the average value. - The flow resistance of the air bleed passage is determined so that the average value of the above air-fuel ratio is approximately the stoichiometric air-fuel ratio, and an idling detector is installed to detect engine idling. An exhaust gas purification device for an internal combustion engine, wherein the electromagnetic valve is kept closed in a device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10174782U JPS597251U (en) | 1982-07-07 | 1982-07-07 | Internal combustion engine exhaust gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10174782U JPS597251U (en) | 1982-07-07 | 1982-07-07 | Internal combustion engine exhaust gas purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS597251U true JPS597251U (en) | 1984-01-18 |
Family
ID=30240146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10174782U Pending JPS597251U (en) | 1982-07-07 | 1982-07-07 | Internal combustion engine exhaust gas purification device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS597251U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564741A (en) * | 1979-04-11 | 1981-01-19 | Moplefan Spa | High speed loom for making bag weaving by yarn * strap or similar material made from synthetic or natural substance |
| JPS56159549A (en) * | 1980-05-13 | 1981-12-08 | Toyota Motor Corp | Air to fuel ratio control system for engine |
-
1982
- 1982-07-07 JP JP10174782U patent/JPS597251U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564741A (en) * | 1979-04-11 | 1981-01-19 | Moplefan Spa | High speed loom for making bag weaving by yarn * strap or similar material made from synthetic or natural substance |
| JPS56159549A (en) * | 1980-05-13 | 1981-12-08 | Toyota Motor Corp | Air to fuel ratio control system for engine |
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