JPS6212748U

JPS6212748U -

Info

Publication number: JPS6212748U
Application number: JP10358985U
Authority: JP
Priority date: 1985-07-09
Filing date: 1985-07-09
Publication date: 1987-01-26

Description

[Brief explanation of the drawing]

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図は別の実施例の内燃機関
の平面断面図、第４図は内燃機関の全体図、第５
図は吸気弁の開弁期間と噴射完了時期を示す線図
、第６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７図は燃料
噴射処理のためのフローチヤート、第８図は制御
時間と機関回転数の関係を示す線図、第９図はＲ
ＯＭに記憶された増量係数を示す線図である。５…燃焼室、６…点火線、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.
FIG. 3 is a plan sectional view of an internal combustion engine according to another embodiment, FIG. 4 is an overall view of the internal combustion engine, and FIG.
Figure 6 is a diagram showing the intake valve opening period and injection completion timing, Figure 6 is a flowchart for determining the injection start crank angle and injection completion crank angle, Figure 7 is a flowchart for fuel injection processing, and Figure 8 is a flowchart for determining the injection start crank angle and injection completion crank angle. The figure is a diagram showing the relationship between control time and engine speed, and Figure 9 is R
It is a diagram showing the increase coefficient stored in OM. 5... Combustion chamber, 6... Ignition line, 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

[Scope of utility model registration request]

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-injected internal combustion engine in which the valve is opened from near top dead center to the beginning of the compression stroke, and the third intake valve is opened from near the center of the intake stroke to the beginning of the compression stroke, the intake air flow that flows in from the first intake valve An ignition plug is placed around the top of the combustion chamber on the flow path of the swirling flow that is formed, and the fuel injection completion timing of the fuel injector is gradually changed 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 designed to accelerate air intake.