JPH031262U - - Google Patents
Info
- Publication number
- JPH031262U JPH031262U JP6031089U JP6031089U JPH031262U JP H031262 U JPH031262 U JP H031262U JP 6031089 U JP6031089 U JP 6031089U JP 6031089 U JP6031089 U JP 6031089U JP H031262 U JPH031262 U JP H031262U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- exhaust gas
- assist
- air
- combustion engine
- 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 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Fuel-Injection Apparatus (AREA)
Description
第１図はこの考案の全体構成を示す図。第２図
は一つのインジエクタの縦断面図。第３図及び第
４図は制御回路の作動を説明するフローチヤート
。第５図は制御回路の作動を説明するタイミング
図。第６図は燃料噴射時期の制御を説明するタイ
ミング図。第７図はアシストエアとしての排気ガ
スの取出部を示す断面図。第８図は排気ガスの取
出部の変形構造を示す断面図。第９図はエンジン
１サイクル（７２０゜ＣＡ）における 排気ブロ
ーダウンによる圧力変化を各気筒毎に示す図。第
１０図は第２実施例における燃料噴射開始時の算
出ルーチンを示すフローチヤート。第１１図は第
３実施例におけるブローダウン時の検出ルーチン
を示すフローチヤート。第１２図は第３実施例の
作動タイミング図。第１３図は排気ガスと吸入空
気とをエアアシストとして温度条件によつて切り
換える実施例を示す概略図。
１０…エンジン本体、１２…吸気マニホルド、
１２−１，１２−２，１２−３，１２−４…分岐
管部、１４…排気マニホルド、１４−１，１４−
２，１４−３，１４−４…分岐管部、１５…デイ
ストリビユータ、２６−１，２６−２，２６−３
，２６−４…インジエクタ、３０…制御回路、３
４，３６…クランク角度センサ、７０−１，７０
−２，７０−３，７０−４…エアアシストパイプ
。
FIG. 1 is a diagram showing the overall configuration of this invention. FIG. 2 is a longitudinal sectional view of one injector. 3 and 4 are flowcharts explaining the operation of the control circuit. FIG. 5 is a timing diagram illustrating the operation of the control circuit. FIG. 6 is a timing diagram illustrating control of fuel injection timing. FIG. 7 is a sectional view showing a part for extracting exhaust gas as assist air. FIG. 8 is a sectional view showing a modified structure of the exhaust gas extraction section. FIG. 9 is a diagram showing pressure changes for each cylinder due to exhaust blowdown during one engine cycle (720° CA). FIG. 10 is a flowchart showing a calculation routine at the start of fuel injection in the second embodiment. FIG. 11 is a flowchart showing a blowdown detection routine in the third embodiment. FIG. 12 is an operation timing diagram of the third embodiment. FIG. 13 is a schematic diagram showing an embodiment in which exhaust gas and intake air are switched depending on temperature conditions as air assist. 10...Engine body, 12...Intake manifold,
12-1, 12-2, 12-3, 12-4...branch pipe section, 14...exhaust manifold, 14-1, 14-
2, 14-3, 14-4... Branch pipe section, 15... Distributor, 26-1, 26-2, 26-3
, 26-4... Injector, 30... Control circuit, 3
4,36...Crank angle sensor, 70-1,70
-2,70-3,70-4...Air assist pipe.
Claims (1)
毎に独立のタイミングにおいて燃料噴射が行われ
、かつ排気ガスをアシストエアとして使用する多
気筒内燃機関において、各気筒のインジエクタの
アシストエア導入口へのアシストエア通路がその
気筒が燃料噴射を実行するとき排気行程にある気
筒の排気ガス取出口に接続されることを特徴とす
る内燃機関のエアアシスト装置。 In a multi-cylinder internal combustion engine in which fuel is injected at independent timing from a fuel injector installed in each cylinder and exhaust gas is used as assist air, assist air is supplied to the assist air inlet of each cylinder's injector. An air assist device for an internal combustion engine, characterized in that a passage is connected to an exhaust gas outlet of a cylinder that is on an exhaust stroke when that cylinder performs fuel injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6031089U JPH031262U (en) | 1989-05-26 | 1989-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6031089U JPH031262U (en) | 1989-05-26 | 1989-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH031262U true JPH031262U (en) | 1991-01-09 |
Family
ID=31587564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6031089U Pending JPH031262U (en) | 1989-05-26 | 1989-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012096107A1 (en) * | 2011-01-13 | 2012-07-19 | 矢崎総業株式会社 | Wire harness |
-
1989
- 1989-05-26 JP JP6031089U patent/JPH031262U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012096107A1 (en) * | 2011-01-13 | 2012-07-19 | 矢崎総業株式会社 | Wire harness |
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