JPH0440158U

JPH0440158U -

Info

Publication number: JPH0440158U
Application number: JP8167090U
Authority: JP
Priority date: 1990-08-02
Filing date: 1990-08-02
Publication date: 1992-04-06

Description

[Brief explanation of the drawing]

第１図は４サイクル内燃機関の全体図、第２図
は第１図の−線に沿つてみた断面図、第３図
は第１図の矢印に沿つてみた側面図、第４図は
吸気制御弁の開弁領域および閉弁領域を示す線図
、第５図は第２の実施例を示す側面図、第６図は
第１吸気弁および第２吸気弁の弁リフトを示す線
図、第７図は第３の実施例を示す全体図、第８図
は連通制御弁の開度のマツプを示す線図、第９図
は第４の実施例におけるロータリ弁を示す図、第
１０図は空気流Ｂの発生期間を説明する線図であ
る。６……吸気ポート、７……隔壁、８……第１の
吸気ポート、９……第２の吸気ポート、１６……
吸気制御弁、１７……連通路、１７ａ……出口開
口、２５……連通穴、２６ａ，２６ｂ……噴口、
２７……燃料噴射弁、２８ａ，２８ｂ……噴射燃
料、３６……連通路、４０……連通路、４０ａ…
…出口開口。 Figure 1 is an overall view of a four-stroke internal combustion engine, Figure 2 is a sectional view taken along the - line in Figure 1, Figure 3 is a side view taken along the arrow in Figure 1, and Figure 4 is an intake air A line diagram showing the valve opening area and a valve closing area of the control valve, FIG. 5 is a side view showing the second embodiment, FIG. 6 is a line diagram showing the valve lift of the first intake valve and the second intake valve, Fig. 7 is an overall diagram showing the third embodiment, Fig. 8 is a diagram showing a map of the opening degree of the communication control valve, Fig. 9 is a diagram showing the rotary valve in the fourth embodiment, and Fig. 10. is a diagram illustrating the period during which airflow B occurs. 6... Intake port, 7... Partition wall, 8... First intake port, 9... Second intake port, 16...
Intake control valve, 17... Communication path, 17a... Outlet opening, 25... Communication hole, 26a, 26b... Nozzle port,
27...Fuel injection valve, 28a, 28b...Injected fuel, 36...Communication path, 40...Communication path, 40a...
...Exit opening.

Claims

[Scope of utility model registration request]

The intake port is composed of a first intake port and a second intake port separated by a partition wall, and an intake control valve that is controlled to open and close according to engine operating conditions is disposed in the second intake port, and the intake control valve A communication hole is formed in the downstream partition wall to communicate the first and second intake ports, and a fuel injection valve having a plurality of nozzles is disposed in the communication hole, and the fuel injection valve is inclined from the nozzle toward the downstream side. In an internal combustion engine with multiple intake ports, in which fuel is injected into the first and second intake ports, respectively, a communication passage is provided that communicates the upstream side of the intake control valve with the second intake port downstream of the intake control valve. An intake control device for an internal combustion engine with multiple intake ports, wherein the outlet opening of the communication passage is oriented between a side wall surface of a second intake port located on the opposite side of the first intake port and the injected fuel.