JPS62131U

JPS62131U -

Info

Publication number: JPS62131U
Application number: JP9002085U
Authority: JP
Priority date: 1985-06-17
Filing date: 1985-06-17
Publication date: 1987-01-06

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図は内燃機関の全体図、第
４図は吸気弁の開弁期間と噴射完了時期を示す線
図、第５図および第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、Ａ……
主燃料噴射弁、Ｂ……副燃料噴射弁。 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.
Figure 3 is a general view of the internal combustion engine, Figure 4 is a diagram showing the intake valve opening period and injection completion timing, Figures 5 and 6 are the injection start crank angle and injection completion. Flowchart for determining the crank angle, Figure 7 is a flowchart for fuel injection processing, Figure 8 is a diagram showing the relationship between control time and engine speed, and Figure 9 shows the increase coefficient stored in the ROM. It is a line diagram. 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, A...
Main fuel injection valve, B...auxiliary 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 main fuel injection valve is disposed in a third air passage connected to the combustion chamber via the second intake valve, and the first intake valve and the second intake valve open during the intake stroke. In a fuel injection 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 engine load is predetermined by controlling the main fuel injection valve and the auxiliary fuel injection valve according to the engine load. When the engine load is smaller than the load, the mixture is supplied into the combustion chamber only from the third intake passage, and when the engine load is larger than the predetermined load, the mixture is supplied into the combustion chamber from the first intake passage, the second intake passage, and the third intake passage. A fuel-injected internal combustion engine with multiple intake valves adapted to supply fuel.