JPS643046U - - Google Patents
Info
- Publication number
- JPS643046U JPS643046U JP9538387U JP9538387U JPS643046U JP S643046 U JPS643046 U JP S643046U JP 9538387 U JP9538387 U JP 9538387U JP 9538387 U JP9538387 U JP 9538387U JP S643046 U JPS643046 U JP S643046U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- injector
- load
- fuel
- injection timing
- 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 15
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図はこの考案の構成を示す図。第２図は実
施例の全体概略構成図。第３図は燃焼室の横断面
図。第４図は燃焼室の縦断面図。第５図は制御回
路の作動を説明するフローチヤート。第６図は制
御回路の作動を説明するタイミング図。第７図は
空燃比とＮＯｘ排出量Ａと空燃比と燃料消費率Ｂ
との関係を説明する図。第８図は機関冷間時の噴
霧と吸気弁傘部との位置関係を示す図。第９図、
第１０図、第１１図は負荷に応じた燃料噴射量の
パターンを示す図。
１６…燃焼室、２２ａ，２２ｂ…吸気ポート、
２４ａ，２４ｂ…排気ポート、２６ａ，２６ｂ…
吸気弁、２８ａ，２８ｂ…排気弁、３０…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。
FIG. 1 is a diagram showing the configuration of this invention. FIG. 2 is an overall schematic configuration diagram of the embodiment. Figure 3 is a cross-sectional view of the combustion chamber. Figure 4 is a longitudinal sectional view of the combustion chamber. FIG. 5 is a flowchart explaining the operation of the control circuit. FIG. 6 is a timing diagram illustrating the operation of the control circuit. Figure 7 shows air-fuel ratio, NOx emissions A, air-fuel ratio and fuel consumption rate B.
A diagram explaining the relationship between. FIG. 8 is a diagram showing the positional relationship between the spray and the intake valve umbrella when the engine is cold. Figure 9,
FIG. 10 and FIG. 11 are diagrams showing patterns of fuel injection amount depending on load. 16... Combustion chamber, 22a, 22b... Intake port,
24a, 24b...exhaust port, 26a, 26b...
Intake valve, 28a, 28b...Exhaust valve, 30...Ignition plug, 34...Injector, 44...Intake control valve, 50
...Control circuit, 52...Crank angle sensor.
Claims (1)
けて柱状の噴霧を形成するインジエクタと、内燃
機関の負荷状態を検出する負荷検出手段と、該負
荷状態に応じて燃料噴射時期を算出する燃料噴射
時期算出手段と、該燃料噴射時期算出手段により
算出される燃料噴射時期にインジエクタが燃料噴
射を行うようにインジエクタを駆動するインジエ
クタ駆動手段とから構成され、燃料噴射時期算出
手段が算出する燃料噴射時期は、低負荷時には吸
気行程の例えば後半時に噴射されるが、負荷の増
大とともに吸気行程での噴射量を減少又は中止し
それ以外の行程で燃料噴射の分担を多くすること
を特徴とする内燃機関の燃料噴射制御装置。 In a fuel-injected internal combustion engine, an injector forms a columnar spray toward an intake valve head, a load detection means detects a load condition of the internal combustion engine, and a fuel injection device calculates fuel injection timing according to the load condition. The fuel injection timing calculated by the fuel injection timing calculation means is composed of a timing calculation means and an injector driving means for driving the injector so that the injector performs fuel injection at the fuel injection timing calculated by the fuel injection timing calculation means. is an internal combustion engine characterized in that when the load is low, the fuel is injected, for example, in the latter half of the intake stroke, but as the load increases, the injection amount in the intake stroke is reduced or stopped, and the share of fuel injection is increased in other strokes. fuel injection control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9538387U JPS643046U (en) | 1987-06-23 | 1987-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9538387U JPS643046U (en) | 1987-06-23 | 1987-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643046U true JPS643046U (en) | 1989-01-10 |
Family
ID=31320047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9538387U Pending JPS643046U (en) | 1987-06-23 | 1987-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643046U (en) |
-
1987
- 1987-06-23 JP JP9538387U patent/JPS643046U/ja active Pending
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