JPS6218336U - - Google Patents
Info
- Publication number
- JPS6218336U JPS6218336U JP10971485U JP10971485U JPS6218336U JP S6218336 U JPS6218336 U JP S6218336U JP 10971485 U JP10971485 U JP 10971485U JP 10971485 U JP10971485 U JP 10971485U JP S6218336 U JPS6218336 U JP S6218336U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- valve
- combustion chamber
- intake valve
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
第１図は本考案の一実施例の平面図、第２図は
同上実施例の第３の吸気弁を示す拡大縦断面図、
第３図は同上実施例における各吸気弁の動作時期
及びリフトと、燃料噴射弁の噴射時期を示すグラ
フ、第４図は従来の複吸気弁エンジンにおける第
３の吸気弁を示す拡大縦断面図である。
１……第１吸気ポート、２……第１吸気弁、３
……燃焼室、４……第２吸気ポート、５……第２
吸気弁、６……吸気制御弁、７……第３吸気ポー
ト、８……第３吸気弁、９……燃料噴射弁、１１
……点火栓、１２……マスキング、１５……排気
ポート、１６……ＥＧＲポート、１９……ＥＣＵ
、８０……第３吸気弁首部、８１……第３吸気弁
弁桿、８２……第３吸気弁首部平面部。
FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 is an enlarged vertical cross-sectional view showing a third intake valve of the same embodiment.
Fig. 3 is a graph showing the operating timing and lift of each intake valve and the injection timing of the fuel injection valve in the same embodiment as above, and Fig. 4 is an enlarged vertical sectional view showing the third intake valve in a conventional dual intake valve engine. It is. 1...First intake port, 2...First intake valve, 3
...Combustion chamber, 4...Second intake port, 5...Second
Intake valve, 6... Intake control valve, 7... Third intake port, 8... Third intake valve, 9... Fuel injection valve, 11
... Spark plug, 12 ... Masking, 15 ... Exhaust port, 16 ... EGR port, 19 ... ECU
, 80...Third intake valve neck, 81...Third intake valve valve rod, 82...Third intake valve neck flat surface.
Claims (1)
る常時開放の第１の吸気ポートと、エンジンの高
負荷高回転運転域においてのみ開放する吸気制御
弁を有しかつ燃焼室内にストレートの吸気を供給
する第２の吸気ポートと、燃料噴射弁を設けた第
３の吸気ポートとを具備し、これら第１、第２及
び第３の各吸気ポートを、第１、第２及び第３の
吸気弁を介して燃焼室にそれぞれ接続し前記第３
の吸気弁の開弁時期を前記第１の吸気弁の開弁時
期より遅らせた複吸気弁エンジンにおいて、前記
第３の吸気弁の首部に、弁桿と直角な平面部を形
成するとともにこの平面部の延長線上に点火栓が
位置するように配置したことを特徴とする複吸気
弁エンジン。 A first intake port that is always open to generate a swirl in the intake air supplied into the combustion chamber, and a first intake port that has an intake control valve that opens only in a high-load, high-speed operating range of the engine and supplies straight intake air into the combustion chamber. The first, second and third intake ports are connected to each other through the first, second and third intake valves. and connected to the combustion chamber respectively.
In a multi-intake valve engine in which the opening timing of the intake valve is delayed from the opening timing of the first intake valve, a flat part perpendicular to the valve rod is formed in the neck of the third intake valve, and this flat part is A double-intake valve engine characterized in that the spark plug is located on an extension of the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10971485U JPS6218336U (en) | 1985-07-19 | 1985-07-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10971485U JPS6218336U (en) | 1985-07-19 | 1985-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6218336U true JPS6218336U (en) | 1987-02-03 |
Family
ID=30988061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10971485U Pending JPS6218336U (en) | 1985-07-19 | 1985-07-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6218336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02104915A (en) * | 1988-10-13 | 1990-04-17 | Yamaha Motor Co Ltd | Combustion chamber of multi-valved engine |
-
1985
- 1985-07-19 JP JP10971485U patent/JPS6218336U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02104915A (en) * | 1988-10-13 | 1990-04-17 | Yamaha Motor Co Ltd | Combustion chamber of multi-valved engine |
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