JPH0237266U - - Google Patents
Info
- Publication number
- JPH0237266U JPH0237266U JP11478488U JP11478488U JPH0237266U JP H0237266 U JPH0237266 U JP H0237266U JP 11478488 U JP11478488 U JP 11478488U JP 11478488 U JP11478488 U JP 11478488U JP H0237266 U JPH0237266 U JP H0237266U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- intake
- fuel injection
- valve seat
- injection 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 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の実施例に係るエンジンの吸気
装置の要部断面図で、第２図は第１図のＡ部詳細
図で、第３図はエンジンの冷却水温と排気ガス中
に含まれるＨＣの量との関係を示したグラフで、
第４図はエンジン回転数と体積効率との関係を示
したグラフで、第５図はエンジン回転数と軸出力
との関係を示したグラフである。
８……吸気ポート、１０……吸気バルブ、１０
ａ……傘部、２２……燃料噴射弁、２４……バル
ブシート、２６……吸気バルブの傘部に設けた環
状の溝部、２７……バルブシートに設けた環状の
溝部。
Fig. 1 is a cross-sectional view of the main parts of an engine intake system according to an embodiment of the present invention, Fig. 2 is a detailed view of part A in Fig. 1, and Fig. 3 shows the temperature of engine cooling water and the amount contained in exhaust gas. This is a graph showing the relationship between the amount of HC and the amount of HC.
FIG. 4 is a graph showing the relationship between engine speed and volumetric efficiency, and FIG. 5 is a graph showing the relationship between engine speed and shaft output. 8...Intake port, 10...Intake valve, 10
a... Umbrella portion, 22... Fuel injection valve, 24... Valve seat, 26... Annular groove provided in the umbrella portion of the intake valve, 27... Annular groove provided in the valve seat.
Claims (1)
燃料を噴射する燃料噴射弁を備えた燃料噴射式エ
ンジンにおいて、上記吸気バルブと吸気ポートに
嵌装されたバルブシートとのシール部直上流の吸
気バルブの傘部、もしくは、バルブシートの少な
くともどちらか一方に、上記シール部に沿つて環
状の溝部を形成したことを特徴とする燃料噴射式
エンジンの吸気装置。 In a fuel injection engine equipped with a fuel injection valve that injects fuel toward the cap of the intake valve when the intake valve is closed, the intake air immediately upstream of the seal between the intake valve and the valve seat fitted into the intake port. 1. An intake device for a fuel injection engine, characterized in that an annular groove is formed in at least one of a valve head portion or a valve seat along the seal portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11478488U JPH0237266U (en) | 1988-08-31 | 1988-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11478488U JPH0237266U (en) | 1988-08-31 | 1988-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0237266U true JPH0237266U (en) | 1990-03-12 |
Family
ID=31355851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11478488U Pending JPH0237266U (en) | 1988-08-31 | 1988-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4707641B2 (en) * | 2006-10-05 | 2011-06-22 | ヤマハ発動機株式会社 | Intake device for internal combustion engine |
-
1988
- 1988-08-31 JP JP11478488U patent/JPH0237266U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4707641B2 (en) * | 2006-10-05 | 2011-06-22 | ヤマハ発動機株式会社 | Intake device for internal combustion engine |