JPS6110930U - engine intake system - Google Patents
engine intake systemInfo
- Publication number
- JPS6110930U JPS6110930U JP9542584U JP9542584U JPS6110930U JP S6110930 U JPS6110930 U JP S6110930U JP 9542584 U JP9542584 U JP 9542584U JP 9542584 U JP9542584 U JP 9542584U JP S6110930 U JPS6110930 U JP S6110930U
- Authority
- JP
- Japan
- Prior art keywords
- intake passage
- branch
- control valve
- upstream
- downstream opening
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に係るエンジンの吸気装置の平面断面図
、第２図は第１図の■一■断面図、第３図は従来のエン
ジンの吸気装置の縦断面図、第４図は第３図の吸気の流
れを示す平面図である。
Ｅ・・・エンジン、１２・・・燃焼室、１８・・・主吸
気通路、１９・・・仕切壁（分岐部）、２０．２１・・
・分岐吸気通路、２２・・・制御弁、２３・・・補助吸
気通路、２３ａ・・・上流側開口部、２３ｂ・・・下流
側開口部、２７・・・燃料噴射弁、３３・・・内周壁、
３４・・・ガイド溝。Fig. 1 is a plan sectional view of an engine intake system according to the present invention, Fig. 2 is a 1-1 sectional view of Fig. 1, Fig. 3 is a vertical sectional view of a conventional engine intake system, and Fig. 4 is FIG. 4 is a plan view showing the flow of intake air in FIG. 3; E...Engine, 12...Combustion chamber, 18...Main intake passage, 19...Partition wall (branch), 20.21...
- Branch intake passage, 22... Control valve, 23... Auxiliary intake passage, 23a... Upstream opening, 23b... Downstream opening, 27... Fuel injection valve, 33... inner wall,
34... Guide groove.
Claims (1)
分岐吸気通路が設けられ、該各分岐吸気通路の分岐部の
上流に軽負荷時に閉じ高負荷時に開く制御弁が設けられ
、該制御弁上流の主吸気通路から分岐して上記各分岐吸
気通路のいずれか１つに連通ずる補助吸気通路が設けら
れ、上記制御弁の下流で、かつ上記分岐部の上流に各分
岐吸気通路に向けて燃料を噴射する燃料噴射弁が設けら
れたエンジンにおいて、 上記補助吸気通路の下流側開口部が開口された分岐吸気
通路の内周壁に、該内周壁に沿って流下する付着燃料が
、上記下′流側開口部に向って集合するようにガイドす
るガイド溝を形成したことを特徴とするエンジンの吸気
装置。[Claim for Utility Model Registration] A plurality of branch intake passages are provided that branch from the main intake passage and communicate with the same combustion chamber, and each branch intake passage closes at light load and opens at high load upstream of the branch part. A control valve is provided, and an auxiliary intake passage is provided that branches from the main intake passage upstream of the control valve and communicates with any one of the branched intake passages, and is provided downstream of the control valve and of the branch portion. In an engine that is provided with a fuel injection valve that injects fuel toward each branch intake passage upstream, the downstream opening of the auxiliary intake passage is placed on the inner circumferential wall of the branch intake passage where the downstream opening is opened, along the inner circumferential wall. An intake device for an engine, characterized in that a guide groove is formed to guide the flowing down adhering fuel so that it gathers toward the downstream opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9542584U JPS6110930U (en) | 1984-06-25 | 1984-06-25 | engine intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9542584U JPS6110930U (en) | 1984-06-25 | 1984-06-25 | engine intake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6110930U true JPS6110930U (en) | 1986-01-22 |
Family
ID=30654545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9542584U Pending JPS6110930U (en) | 1984-06-25 | 1984-06-25 | engine intake system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6110930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02161170A (en) * | 1989-11-17 | 1990-06-21 | Yamaha Motor Co Ltd | Intake device for four-cycle internal combustion engine |
-
1984
- 1984-06-25 JP JP9542584U patent/JPS6110930U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02161170A (en) * | 1989-11-17 | 1990-06-21 | Yamaha Motor Co Ltd | Intake device for four-cycle internal combustion engine |
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