JPH02110252U - - Google Patents
Info
- Publication number
- JPH02110252U JPH02110252U JP1785889U JP1785889U JPH02110252U JP H02110252 U JPH02110252 U JP H02110252U JP 1785889 U JP1785889 U JP 1785889U JP 1785889 U JP1785889 U JP 1785889U JP H02110252 U JPH02110252 U JP H02110252U
- Authority
- JP
- Japan
- Prior art keywords
- air
- injection system
- injector
- fuel
- atomization
- 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
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例を示す過給機付エン
ジンの燃料噴射システムの構成図、第２図はイン
ジエクタ５の要部拡大断面図である。
１……エンジン、２……吸気通路、３……スロ
ツトルバルブ、４……過給機、５……インジエク
タ、５ａ……微粒化用補助空気供給部、６……エ
ア通路、７……一方向弁。
FIG. 1 is a configuration diagram of a fuel injection system for a supercharged engine showing an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part of an injector 5. As shown in FIG. DESCRIPTION OF SYMBOLS 1...Engine, 2...Intake passage, 3...Throttle valve, 4...Supercharger, 5...Injector, 5a...Auxiliary air supply section for atomization, 6...Air passage, 7... One way valve.
Claims (1)
ントインジエクシヨン方式とし、且つ前記エンジ
ンの吸気通路のスロツトルバルブ直上流位置に、
噴射燃料と微粒化用補助空気を一緒に噴射させる
ことにより噴射燃料の微粒化を図るようにしたエ
アアシストタイプのインジエクタを設け、このイ
ンジエクタにより前記スロツトルバルブに向けて
燃料を噴射するようにし、更に、前記インジエク
タの微粒化用補助空気供給部と前記過給機下流部
との間をエア通路により連絡し、このエア通路に
前記過給機下流圧が正圧となつたとき開弁して該
過給機側から前記インジエクタ側へのエアの流れ
を許容する一方向弁を設け、前記過給機による過
給エアを前記微粒化用補助空気として用いること
を特徴とする過給機付エンジンの燃料噴射システ
ム。 The fuel injection system of the supercharged engine is a single point injection system, and the fuel injection system is located immediately upstream of the throttle valve in the intake passage of the engine,
An air assist type injector is provided to atomize the injected fuel by injecting the injected fuel and auxiliary air for atomization together, and the injector injects the fuel toward the throttle valve, Furthermore, an air passage communicates between the atomization auxiliary air supply part of the injector and the downstream part of the turbocharger, and a valve is opened in the air passage when the downstream pressure of the turbocharger becomes positive pressure. A supercharged engine characterized in that a one-way valve is provided to allow air to flow from the supercharger side to the injector side, and supercharged air from the supercharger is used as the atomization auxiliary air. fuel injection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1785889U JPH02110252U (en) | 1989-02-20 | 1989-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1785889U JPH02110252U (en) | 1989-02-20 | 1989-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02110252U true JPH02110252U (en) | 1990-09-04 |
Family
ID=31232006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1785889U Pending JPH02110252U (en) | 1989-02-20 | 1989-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02110252U (en) |
-
1989
- 1989-02-20 JP JP1785889U patent/JPH02110252U/ja active Pending