JPH0193366U

JPH0193366U -

Info

Publication number: JPH0193366U
Application number: JP18877587U
Authority: JP
Priority date: 1987-12-14
Filing date: 1987-12-14
Publication date: 1989-06-20

Description

[Brief explanation of the drawing]

第１図および第２図はこの考案の第１の実施例
に係わり、第１図は三方電磁弁が非通電状態での
燃料噴射弁の断面図、第２図は同通電状態での同
断面図、第３図は第２の実施例の燃料噴射弁の断
面図、第４図は従来の燃料噴射弁の断面図である
。１１……逆止弁、１９……燃料噴射口、２７…
…ボール弁（切換弁）、４３……混合気室、５０
……燃料オン・オフ弁。 Figures 1 and 2 relate to the first embodiment of this invention; Figure 1 is a sectional view of the fuel injection valve with the three-way solenoid valve in a de-energized state, and Figure 2 is the same cross-sectional view with the three-way solenoid valve in the energized state. 3 and 3 are cross-sectional views of the fuel injection valve of the second embodiment, and FIG. 4 is a cross-sectional view of a conventional fuel injection valve. 11...Check valve, 19...Fuel injection port, 27...
...Ball valve (switching valve), 43...Mixture chamber, 50
...Fuel on/off valve.

Claims

[Scope of utility model registration request]

A switching valve that can selectively supply atmospheric pressure air and high pressure air to a mixture chamber formed upstream of a fuel injection port according to operating conditions; and a switching valve that opens when the mixture chamber is at atmospheric pressure. A fuel on/off valve that supplies fuel to the mixture chamber and closes when the mixture chamber is in a high pressure state to stop the supply of fuel to the mixture chamber, and is provided between the fuel injection port and the mixture chamber. A fuel injection device comprising: a check valve that opens when the air-fuel mixture chamber is in a high pressure state;