JPS61198516U - - Google Patents
Info
- Publication number
- JPS61198516U JPS61198516U JP8204085U JP8204085U JPS61198516U JP S61198516 U JPS61198516 U JP S61198516U JP 8204085 U JP8204085 U JP 8204085U JP 8204085 U JP8204085 U JP 8204085U JP S61198516 U JPS61198516 U JP S61198516U
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- combustion engine
- secondary air
- opens
- rotational speed
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図は本考案に係る内燃エンジンの排気系２
次空気制御装置の一実施例を示す構成図、第２図
は第１図の制御回路の一実施例を示すブロツク図
、第３図及び第４図は２次空気の供給制御領域を
示すグラフである。
１……エンジン、２……吸気通路、４……排気
通路、１０……Ａ／Ｓバルブスイツチ、１６……
Ａ／Ｓバルブ、２５……Ａ／Ｓソレノイドバルブ
、３２……温度バルブ、４０……制御回路、４６
，４７……回転数判別回路、５１……遅延回路、
５５……温度スイツチ、５７……イグニツシヨン
コイル。
Figure 1 shows the exhaust system 2 of an internal combustion engine according to the present invention.
FIG. 2 is a block diagram showing an example of the control circuit of FIG. 1, and FIGS. 3 and 4 are graphs showing the secondary air supply control area. It is. 1...Engine, 2...Intake passage, 4...Exhaust passage, 10...A/S valve switch, 16...
A/S valve, 25...A/S solenoid valve, 32...Temperature valve, 40...Control circuit, 46
, 47... Rotation speed discrimination circuit, 51... Delay circuit,
55...Temperature switch, 57...Ignition coil.
Claims (1)
り弁低開度運転状態を検出してエアサクシヨンバ
ルブを開弁させて排気通路に２次空気を供給する
内燃エンジンの排気系２次空気供給制御装置にお
いて、該内燃エンジンの回転数を検出し、該回転
数が所定値以上のときには該エアサクシヨンバル
ブを一定時間遅延させて開弁作動させる制御回路
を設けたことを特徴とする内燃エンジンの排気系
２次空気供給制御装置。 A secondary air supply control device for the exhaust system of an internal combustion engine that detects operating conditions with a low throttle valve opening such as during idling and deceleration of the internal combustion engine, opens the air suction valve, and supplies secondary air to the exhaust passage. An exhaust gas of an internal combustion engine, characterized in that a control circuit is provided which detects the rotational speed of the internal combustion engine and opens the air suction valve after a certain period of delay when the rotational speed is equal to or higher than a predetermined value. System secondary air supply control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8204085U JPH0137145Y2 (en) | 1985-05-31 | 1985-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8204085U JPH0137145Y2 (en) | 1985-05-31 | 1985-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61198516U true JPS61198516U (en) | 1986-12-11 |
| JPH0137145Y2 JPH0137145Y2 (en) | 1989-11-09 |
Family
ID=30629396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8204085U Expired JPH0137145Y2 (en) | 1985-05-31 | 1985-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0137145Y2 (en) |
-
1985
- 1985-05-31 JP JP8204085U patent/JPH0137145Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0137145Y2 (en) | 1989-11-09 |