JPS6312633U - - Google Patents
Info
- Publication number
- JPS6312633U JPS6312633U JP10489886U JP10489886U JPS6312633U JP S6312633 U JPS6312633 U JP S6312633U JP 10489886 U JP10489886 U JP 10489886U JP 10489886 U JP10489886 U JP 10489886U JP S6312633 U JPS6312633 U JP S6312633U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- valve
- intake port
- engine
- throttle
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (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とを示す線図、第３図は上
記実施例における第１及び第２のスロツトル弁の
開度とエンジン負荷との関係を示す線図、第４図
は上記第１のスロツトル弁の低負荷時の開度を一
部変更した第３図と同様な線図、第５図は上記実
施例における燃料噴射の終了時期とエンジン負荷
との関係を示す線図である。
１……第１吸気通路、２……第１スロツトル弁
、３……第１吸気ポート、４……第２吸気ポート
、５……第２吸気通路、６……第２スロツトル弁
、７……第３吸気ポート、８……バイパス通路、
１０……第１吸気弁、１１……燃焼室、１２……
第２吸気弁、１３……吸気制御弁、１４……第３
吸気弁、１５……燃料噴射弁、１６……点火栓。
FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 shows the operation timing and lift of each intake valve in the same embodiment.
FIG. 3 is a diagram showing the relationship between the opening degrees of the first and second throttle valves and the engine load in the above embodiment, and FIG. A diagram similar to FIG. 3 in which the opening degree of the throttle valve at low load is partially changed, and FIG. 5 is a diagram showing the relationship between the end timing of fuel injection and the engine load in the above embodiment. DESCRIPTION OF SYMBOLS 1...First intake passage, 2...First throttle valve, 3...First intake port, 4...Second intake port, 5...Second intake passage, 6...Second throttle valve, 7... ...Third intake port, 8...Bypass passage,
10...First intake valve, 11...Combustion chamber, 12...
Second intake valve, 13... Intake control valve, 14... Third
Intake valve, 15...Fuel injection valve, 16...Ignition plug.
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
ートとの各吸気ポートを具備し、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開口し、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１及び第２の吸気ポートの上流側を共に
第１の吸気通路に連通させ、前記第３の吸気ポー
トの上流側を第２の吸気通路に連通させ、前記第
１及び第２の吸気通路に第１及び第２のスロツト
ル弁をそれぞれ設け、前記第１のスロツトル弁を
、前記第２のスロツトル弁の全開後にエンジン負
荷に応じて開弁するよう構成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 second intake port that has an intake control valve that opens only in a high engine load range and supplies straight intake air into the combustion chamber. and a third intake port provided with a fuel injection valve. In a dual intake valve engine, the third intake valve opens at a later time than the first intake valve. both sides communicate with a first intake passage, an upstream side of the third intake port communicates with a second intake passage, and first and second throttle valves are connected to the first and second intake passages. A dual intake valve engine, wherein the first throttle valve is configured to open according to the engine load after the second throttle valve is fully opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10489886U JPH0634578Y2 (en) | 1986-07-10 | 1986-07-10 | Double intake valve engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10489886U JPH0634578Y2 (en) | 1986-07-10 | 1986-07-10 | Double intake valve engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6312633U true JPS6312633U (en) | 1988-01-27 |
| JPH0634578Y2 JPH0634578Y2 (en) | 1994-09-07 |
Family
ID=30978817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10489886U Expired - Lifetime JPH0634578Y2 (en) | 1986-07-10 | 1986-07-10 | Double intake valve engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634578Y2 (en) |
-
1986
- 1986-07-10 JP JP10489886U patent/JPH0634578Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634578Y2 (en) | 1994-09-07 |