JPH0176558U - - Google Patents
Info
- Publication number
- JPH0176558U JPH0176558U JP1987171983U JP17198387U JPH0176558U JP H0176558 U JPH0176558 U JP H0176558U JP 1987171983 U JP1987171983 U JP 1987171983U JP 17198387 U JP17198387 U JP 17198387U JP H0176558 U JPH0176558 U JP H0176558U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- fuel
- injector
- detection means
- 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
- 239000000446 fuel Substances 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000013517 stratification Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は実施例の全体概略構成図。第２図は燃
焼室の上面概略図。第３図は燃焼室の縦断面図。
第４図から第６図は制御回路の作動を説明するフ
ローチヤート。第７図は空燃比とＮＯｘ排出量と
の関係を示すグラフ。
１６……燃焼室、２２ａ，２２ｂ……吸気ポー
ト、２４ａ，２４ｂ……排気ポート、２６ａ，２
６ｂ……吸気弁、２８ａ，２８ｂ……排気弁、３
０……点火栓、３４……インジエクタ、４４……
吸気制御弁、５０……制御回路、５２……クラン
ク角センサ、５７……リーンセンサ、６０……空
気室、６１……エアアシスト通路、６２……開閉
弁、６３……空気ポンプ。
FIG. 1 is an overall schematic configuration diagram of the embodiment. Figure 2 is a schematic top view of the combustion chamber. Figure 3 is a longitudinal sectional view of the combustion chamber.
4 to 6 are flowcharts explaining the operation of the control circuit. FIG. 7 is a graph showing the relationship between air-fuel ratio and NOx emissions. 16... Combustion chamber, 22a, 22b... Intake port, 24a, 24b... Exhaust port, 26a, 2
6b...Intake valve, 28a, 28b...Exhaust valve, 3
0...Spark plug, 34...Injector, 44...
Intake control valve, 50... Control circuit, 52... Crank angle sensor, 57... Lean sensor, 60... Air chamber, 61... Air assist passage, 62... Open/close valve, 63... Air pump.
Claims (1)
向けて柱状の噴霧を形成するインジエクタを備え
た燃料噴射内燃機関において、空燃比を検出する
空燃比検出手段と、インジエクタの噴口付近より
補助空気を導入するエアアシスト手段とを備え、
空燃比検出手段が検出する空燃比に応じてエアア
シスト手段を選択的に作動させることを特徴とす
るエアアシスト装置。 In a fuel-injected internal combustion engine equipped with an injector that forms a columnar spray toward a collision target due to the stratification of the air-fuel mixture in the combustion chamber, an air-fuel ratio detection means for detecting the air-fuel ratio and an auxiliary air source near the nozzle of the injector are used. and an air assist means for introducing
An air assist device characterized in that an air assist means is selectively operated according to an air-fuel ratio detected by an air-fuel ratio detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171983U JPH0176558U (en) | 1987-11-12 | 1987-11-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171983U JPH0176558U (en) | 1987-11-12 | 1987-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0176558U true JPH0176558U (en) | 1989-05-24 |
Family
ID=31463980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987171983U Pending JPH0176558U (en) | 1987-11-12 | 1987-11-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0176558U (en) |
-
1987
- 1987-11-12 JP JP1987171983U patent/JPH0176558U/ja active Pending
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