JPS6157166U

JPS6157166U -

Info

Publication number: JPS6157166U
Application number: JP14155984U
Authority: JP
Priority date: 1984-09-20
Filing date: 1984-09-20
Publication date: 1986-04-17

Description

[Brief explanation of drawings]

第１図は本考案のインジエクタを備えた２吸気
ポート・２吸気バルブ式エンジンの模式図、第２
図は第１図のエンジンの模式的水平断面図、第３
図はインジエクタの一部の断面図、第４図は第３
図のインジエクタの下面図、第５図は第３図の
−矢視断面図、第６図は第２図同様の図で変形
実施例を示し、第７図はインジエクタの他の実施
例の一部の断面図である。１８…第１吸気ポート（ストレートポート）、
２０…第２吸気ポート（ヘリカルポート）、２２
…第１吸気バルブ、２４…第２吸気バルブ、３２
…吸気管、３４…スロツトル弁、３１…第１吸気
通路、４０…第２吸気通路、４２…２孔式インジ
エクタ、４６…吸気制御弁、５６…主噴流通路、
５８…スプリツタ、６０…第１噴射孔、６２…第
２噴射孔、６４…第１制御ポート、６６…第２制
御ポート、７２…アシストエア制御弁、９２…負
圧制御弁。 Figure 1 is a schematic diagram of a 2-intake port, 2-intake valve type engine equipped with the injector of the present invention;
The figure is a schematic horizontal sectional view of the engine in Figure 1,
The figure is a cross-sectional view of a part of the injector, and Figure 4 is a sectional view of a part of the injector.
5 is a cross-sectional view taken along the - arrow in FIG. 3, FIG. 6 is a view similar to FIG. 2 and shows a modified embodiment, and FIG. FIG. 18...first intake port (straight port),
20...Second intake port (helical port), 22
...First intake valve, 24...Second intake valve, 32
... Intake pipe, 34... Throttle valve, 31... First intake passage, 40... Second intake passage, 42... Two-hole injector, 46... Intake control valve, 56... Main jet flow passage,
58... Splitter, 60... First injection hole, 62... Second injection hole, 64... First control port, 66... Second control port, 72... Assist air control valve, 92... Negative pressure control valve.

Claims

[Claim for Utility Model Registration] Two intake ports that are opened and closed by separate intake valves are provided for each cylinder of the engine, and air is supplied to the combustion chamber of each cylinder through both intake ports during high-speed, high-load operation of the engine. However, during low-speed, low-load operation, an intake control means is provided for supplying air to each combustion chamber through only one intake port, and the intake system of each cylinder is provided with air directed toward each of the two intake ports. In a two-port, two-intake-valve spark ignition fuel injection engine that is equipped with a two-hole injector having two injection holes, the two-hole injector has a structure in which each cylinder has combustion through only one intake port. A two-hole injector characterized in that an assist air supply means is provided for deflecting fuel toward the injection hole directed toward the one intake port when air is being supplied to the chamber.