JPS61105712U - - Google Patents
Info
- Publication number
- JPS61105712U JPS61105712U JP19137484U JP19137484U JPS61105712U JP S61105712 U JPS61105712 U JP S61105712U JP 19137484 U JP19137484 U JP 19137484U JP 19137484 U JP19137484 U JP 19137484U JP S61105712 U JPS61105712 U JP S61105712U
- Authority
- JP
- Japan
- Prior art keywords
- secondary air
- engine
- control valve
- air introduction
- startup
- 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
- 239000003054 catalyst Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図は本考案の構成を示すブロツク図、第２
図は本考案の一実施例を示すシステム構成図、第
３図は同上のフローチヤート、第４図は従来例を
示すシステム構成図である。
５……排気通路、６……触媒、７……２次空気
導入通路、９……制御弁、１０……負圧通路、１
２……電磁弁、１３……コントロールユニツト、
１５……水温センサ。
Figure 1 is a block diagram showing the configuration of the present invention, Figure 2 is a block diagram showing the configuration of the present invention.
The figure is a system configuration diagram showing an embodiment of the present invention, FIG. 3 is a flowchart of the same, and FIG. 4 is a system configuration diagram showing a conventional example. 5... Exhaust passage, 6... Catalyst, 7... Secondary air introduction passage, 9... Control valve, 10... Negative pressure passage, 1
2... Solenoid valve, 13... Control unit,
15...Water temperature sensor.
Claims (1)
内燃機関の２次空気導入装置において、２次空気
導入通路に制御弁を設けると共に、機関温度を検
出する機関温度検出手段と、始動後の時間を計測
するタイマー手段と、機関温度が所定値以下の条
件及び始動後所定時間内の条件のうち少なくとも
１つの条件が成立したときに２次空気を導入する
よう制御弁の作動を制御する制御弁制御手段とを
設けたことを特徴とする内燃機関の２次空気導入
装置。 A secondary air introduction device for an internal combustion engine that introduces secondary air upstream of a catalyst in an engine exhaust passage includes a control valve provided in the secondary air introduction passage, an engine temperature detection means for detecting engine temperature, and a time period after startup. and a control valve that controls the operation of the control valve to introduce secondary air when at least one of the following conditions is satisfied: the engine temperature is below a predetermined value and the condition is within a predetermined time after engine startup. 1. A secondary air introduction device for an internal combustion engine, comprising a control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19137484U JPS61105712U (en) | 1984-12-19 | 1984-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19137484U JPS61105712U (en) | 1984-12-19 | 1984-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61105712U true JPS61105712U (en) | 1986-07-04 |
Family
ID=30748813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19137484U Pending JPS61105712U (en) | 1984-12-19 | 1984-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61105712U (en) |
-
1984
- 1984-12-19 JP JP19137484U patent/JPS61105712U/ja active Pending