JPS61186731U - - Google Patents
Info
- Publication number
- JPS61186731U JPS61186731U JP7068085U JP7068085U JPS61186731U JP S61186731 U JPS61186731 U JP S61186731U JP 7068085 U JP7068085 U JP 7068085U JP 7068085 U JP7068085 U JP 7068085U JP S61186731 U JPS61186731 U JP S61186731U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- valve
- intake valve
- combustion chamber
- stroke
- 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 11
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第1図は内燃機関の側面断面図、第2図は第1
図の平面断面図、第3図は別の実施例の平面断面
図、第4図は第3吸気弁の配置すべき位置を示す
図、第5図は内燃機関の全体図、第6図は吸気弁
の開弁期間と噴射完了時期を示す線図、第7図は
噴射開始クランク角および噴射完了クランク角を
求めるフローチヤート、第8図は燃料噴射処理の
ためのフローチヤート、第9図は制御時間と機関
回転数の関係を示す線図、第10図はROMに記
憶された増量係数を示す線図である。
5……燃焼室、6……点火栓、7……第1吸気
弁、8……第2吸気弁、9……第3吸気弁、12
……第1吸気通路、13……第2吸気通路、14
……第3吸気通路、19……吸気制御弁、21…
…燃料噴射弁。
Figure 1 is a side cross-sectional view of the internal combustion engine, and Figure 2 is a cross-sectional side view of the internal combustion engine.
3 is a plan sectional view of another embodiment, FIG. 4 is a diagram showing the position where the third intake valve should be placed, FIG. 5 is an overall view of the internal combustion engine, and FIG. 6 is a plan sectional view of another embodiment. A diagram showing the intake valve opening period and injection completion timing, Fig. 7 is a flowchart for determining the injection start crank angle and injection completion crank angle, Fig. 8 is a flowchart for fuel injection processing, and Fig. 9 is a flowchart for determining the injection start crank angle and injection completion crank angle. A diagram showing the relationship between control time and engine speed, and FIG. 10 is a diagram showing the increase coefficient stored in the ROM. 5... Combustion chamber, 6... Spark plug, 7... First intake valve, 8... Second intake valve, 9... Third intake valve, 12
...First intake passage, 13...Second intake passage, 14
...Third intake passage, 19...Intake control valve, 21...
...Fuel injection valve.
Claims (1)
なる3個の吸気弁と、第1吸気通路、第2吸気通
路および第3吸気通路からなる3個の吸気通路と
を具備し、燃焼室内に旋回流を発生させるための
第1吸気通路が第1吸気弁を介して燃焼室内に連
結され、第2吸気弁を介して燃焼室内に連結され
た第2吸気通路内に機関高負荷運転時に開弁する
吸気制御弁を配置し、第3吸気弁を介して燃焼室
内に連結された第3吸気通路内に燃料噴射弁を配
置し、第1吸気弁および第2吸気弁が吸気行程の
上死点付近から圧縮行程始めまで開弁すると共に
第3吸気弁が吸気行程の中央付近から圧縮行程始
めまで開弁する燃料噴射式内燃機関において、第
3吸気弁を第1吸気弁と第2吸気弁とを結ぶ線に
対して燃焼室の周辺側に配置すると共に燃料噴射
弁の燃料噴射完了時期を機関回転数が増大するに
つれて吸気行程末期から吸気行程始めに向けて徐
々に早めるようにした複数の吸気弁を具えた燃料
噴射式内燃機関。 It is equipped with three intake valves consisting of a first intake valve, a second intake valve and a third intake valve, and three intake passages consisting of a first intake passage, a second intake passage and a third intake passage. A first intake passage for generating a swirling flow inside the room is connected to the combustion chamber through the first intake valve, and a second intake passage connected to the combustion chamber through the second intake valve is connected to the combustion chamber through the second intake valve. An intake control valve that opens during the intake stroke is disposed, and a fuel injection valve is disposed in a third intake passage connected to the combustion chamber via a third intake valve. In a fuel injection type internal combustion engine in which the third intake valve opens from near the top dead center to the beginning of the compression stroke, and the third intake valve opens from near the center of the intake stroke to the beginning of the compression stroke, the third intake valve is connected to the first intake valve and the second intake valve. The fuel injector is placed near the periphery of the combustion chamber with respect to the line connecting it to the intake valve, and the fuel injection completion time of the fuel injection valve is gradually advanced from the end of the intake stroke to the beginning of the intake stroke as the engine speed increases. A fuel-injected internal combustion engine with multiple intake valves.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7068085U JPS61186731U (en) | 1985-05-15 | 1985-05-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7068085U JPS61186731U (en) | 1985-05-15 | 1985-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61186731U true JPS61186731U (en) | 1986-11-21 |
Family
ID=30607479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7068085U Pending JPS61186731U (en) | 1985-05-15 | 1985-05-15 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61186731U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0383330U (en) * | 1989-12-16 | 1991-08-23 |
-
1985
- 1985-05-15 JP JP7068085U patent/JPS61186731U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0383330U (en) * | 1989-12-16 | 1991-08-23 |