JPS62116122U - - Google Patents
Info
- Publication number
- JPS62116122U JPS62116122U JP310586U JP310586U JPS62116122U JP S62116122 U JPS62116122 U JP S62116122U JP 310586 U JP310586 U JP 310586U JP 310586 U JP310586 U JP 310586U JP S62116122 U JPS62116122 U JP S62116122U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- valve
- combustion chamber
- engine
- port
- 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
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
Description
第１図は本考案の実施例の平面図、第２図は吸
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３図は第３の吸気弁の開弁
時期とリーン限界との関係を示すグラフ、第４図
は第３の吸気弁の閉弁時期と軸トルクとの関係を
示すグラフである。
１……主吸気ポート、２……主スロツトルバル
ブ、３……第１吸気ポート、４……第２吸気ポー
ト、５……第１吸気弁、６……燃焼室、７……第
２吸気弁、８……吸気制御弁、９……第３吸気ポ
ート、１０……第３吸気弁、１１……副スロツト
ルバルブ、１２……燃料噴射弁。
FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 is a graph showing the operation timing and lift of the intake valve and the injection timing of the fuel injection valve. FIG. 3 is a graph showing the relationship between the opening timing of the third intake valve and the lean limit, and FIG. 4 is a graph showing the relationship between the closing timing of the third intake valve and the shaft torque. 1... Main intake port, 2... Main throttle valve, 3... First intake port, 4... Second intake port, 5... First intake valve, 6... Combustion chamber, 7... Second Intake valve, 8...Intake control valve, 9...Third intake port, 10...Third intake valve, 11...Sub-throttle valve, 12...Fuel injection valve.
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吸気行程の後半となした複
吸気弁エンジンにおいて、前記第３の吸気ポート
を前記第１及び第２の吸気ポートとは独立した吸
気通路となし、該第３の吸気通路中にスロツトル
バルブを設置し、該スロツトルバルブの上流側に
前記燃料噴射弁を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 dual intake valve engine in which the opening timing of the intake valve is set in the latter half of the intake stroke, the third intake port is an intake passage independent of the first and second intake ports, and the third A multiple intake valve engine, characterized in that a throttle valve is installed in an intake passage, and the fuel injection valve is placed upstream of the throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP310586U JPS62116122U (en) | 1986-01-16 | 1986-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP310586U JPS62116122U (en) | 1986-01-16 | 1986-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62116122U true JPS62116122U (en) | 1987-07-23 |
Family
ID=30782557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP310586U Pending JPS62116122U (en) | 1986-01-16 | 1986-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62116122U (en) |
-
1986
- 1986-01-16 JP JP310586U patent/JPS62116122U/ja active Pending