JPS61114071U

JPS61114071U -

Info

Publication number: JPS61114071U
Application number: JP20127384U
Authority: JP
Priority date: 1984-12-28
Filing date: 1984-12-28
Publication date: 1986-07-18

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図は全体概
略構成図、第２図は１気筒についての吸気系を示
す要部の拡大図、第３図は燃料噴射弁の噴射孔付
近の要部拡大断面図、第４図は変形例を示す第３
図相当図である。２…気筒、７…第１吸気通路、８…第２吸気通
路、２１…燃料噴射弁、２２，２３…燃料送給通
路、２４…噴射孔、２６，２６′…アシストエア
通路、２７，２７′…アシストエア通路。 The drawings show an embodiment of the present invention; Fig. 1 is a schematic overall configuration diagram, Fig. 2 is an enlarged view of the main parts showing the intake system for one cylinder, and Fig. 3 shows the main parts near the injection hole of the fuel injection valve. FIG. 4 is an enlarged sectional view of the third section showing a modified example.
It is a figure equivalent figure. 2... Cylinder, 7... First intake passage, 8... Second intake passage, 21... Fuel injection valve, 22, 23... Fuel feeding passage, 24... Injection hole, 26, 26'... Assist air passage, 27, 27 '...Assist air passage.

Claims

[Scope of utility model registration request]

In an intake system for a fuel injection engine that has two intake passages that communicate independently with each cylinder and have different passage areas, one end that opens into the injection hole of one fuel injection valve branches out from the other end, and the other end opens into the injection hole of one fuel injection valve. A fuel feeding passage opens to the intake passage, and an assist air passage opens to each fuel feeding passage and supplies assist air to direct the fuel injected from the fuel injection valve to the corresponding fuel feeding passage. An intake system for a fuel injection engine, wherein the passage area of each assist air passage is set according to the passage area of a corresponding intake passage.