JPS6224017U

JPS6224017U -

Info

Publication number: JPS6224017U
Application number: JP11504485U
Authority: JP
Priority date: 1985-07-29
Filing date: 1985-07-29
Publication date: 1987-02-13

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の要部の拡大平面断
面図、第２図は同上実施例の全体図、第３図は同
上実施例における第１吸気弁及び第２吸気弁の開
弁時期と、吸入空気の流速を考慮した最適の燃料
噴射完了時期とを示す線図、第４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５図は燃料噴射処理のためのフロ
ーチヤート、第６図は制御時間と機関回転数の関
係を示す線図、第７図はＲＯＭに記憶された増量
計数を示す線図、第８図は別の実施例のフローチ
ヤート、第９図はＲＯＭに記憶された噴射開始ク
ランク角を示す線図である。５…燃焼室、６…点火栓、７…第１吸気弁、８
…第２吸気弁、１０…第１吸気通路、１１…第２
吸気通路、１５…燃料噴射弁、３０…マスキング
。 Fig. 1 is an enlarged plan sectional view of the main part of an embodiment of the present invention, Fig. 2 is an overall view of the same embodiment, and Fig. 3 is an opening of the first intake valve and the second intake valve in the above embodiment. Fig. 4 is a flowchart for determining the injection start crank angle and injection completion crank angle, and Fig. 5 is a diagram showing the optimum fuel injection completion timing considering the intake air flow velocity. Flowchart, FIG. 6 is a diagram showing the relationship between control time and engine speed, FIG. 7 is a diagram showing the increase count stored in the ROM, FIG. 8 is a flowchart of another embodiment, and FIG. 9 The figure is a diagram showing the injection start crank angle stored in the ROM. 5... Combustion chamber, 6... Spark plug, 7... First intake valve, 8
...Second intake valve, 10...First intake passage, 11...Second
Intake passage, 15...Fuel injection valve, 30...Masking.

Claims

[Scope of utility model registration request]

It is equipped with two intake valves consisting of a first intake valve and a second intake valve, and two intake passages consisting of a first intake passage and a second intake passage, and a second intake passage for generating a swirling flow in the combustion chamber. A fuel injection valve is disposed in a second intake passage connected to the combustion chamber via the first intake valve, and a fuel injection valve is disposed within the second intake passage connected to the combustion chamber via the second intake valve. In a fuel injection type internal combustion engine in which the valve is opened from near top dead center to the beginning of the compression stroke, and the second intake valve is opened from near the center of the intake stroke to the beginning of the compression stroke, the fuel injection completion timing of the fuel injection valve is determined. As the engine speed increases, the speed is gradually increased from the end of the intake stroke to the beginning of the intake stroke, and a masking that also serves as a squish is provided on the cylinder head wall surface on the side opposite to the spark plug around the second intake valve. . A fuel injection type internal combustion engine, comprising a plurality of intake valves configured to direct intake air from the second intake passage toward a spark plug.