JPH01134741U

JPH01134741U -

Info

Publication number: JPH01134741U
Application number: JP3062788U
Authority: JP
Priority date: 1988-03-08
Filing date: 1988-03-08
Publication date: 1989-09-14

Description

[Brief explanation of the drawing]

第１図は本考案に係る燃料噴射装置の一実施例
の概略断面図、第２図は第１図における燃料制御
部の概略断面図、第３図は燃料制御部の第三実施
例の概略断面図、第４図、第５図は第三実施例に
おけるソレノイドバルブの他の実施例を示す図、
第６図は燃料制御部の更に別の実施例を示す図、
第７図は吸入行程における燃料供給時を示す図で
あつて、Ａは従来装置のものであり、Ｂは本考案
のものである。４……エアバルブ、１２……燃料制御部、１３
……噴射ノズル、１５……コントロールユニツト
、２１……メイン系燃料制御部、２２……スロー
系燃料制御部、３４，３４′……ソレノイドバル
ブ、３５……検知手段。 FIG. 1 is a schematic sectional view of one embodiment of the fuel injection device according to the present invention, FIG. 2 is a schematic sectional view of the fuel control section in FIG. 1, and FIG. 3 is a schematic sectional view of a third embodiment of the fuel control section. The sectional view, FIGS. 4 and 5 are views showing other embodiments of the solenoid valve in the third embodiment,
FIG. 6 is a diagram showing still another embodiment of the fuel control section;
FIG. 7 is a diagram showing fuel supply during the intake stroke, in which A shows the conventional device and B shows the device of the present invention. 4...Air valve, 12...Fuel control section, 13
... Injection nozzle, 15 ... Control unit, 21 ... Main system fuel control section, 22 ... Slow system fuel control section, 34, 34' ... Solenoid valve, 35 ... Detection means.

Claims

[Claims for Utility Model Registration] (1) By balancing the negative pressure generated by the air flow rate with the pressure due to the fuel pressure difference before and after the jet generated by the fuel injection amount, the air-fuel mixture is always kept empty. A multi-cylinder fuel injection device equipped with a fuel control unit that maintains a constant fuel ratio includes an injection nozzle that is arranged for each cylinder and injects fuel sent from the fuel control unit, and an injection nozzle that controls the intake stroke of the engine. A fuel injection device comprising: a control unit that detects the intake stroke and injects fuel from the injection nozzle in synchronization with the intake stroke. (2) a slow system fuel control section in which the fuel control section injects a small amount of fuel in response to a small amount of air flow; a main system fuel control section in which the fuel control section injects a large amount of fuel in response to a large amount of air flow; A fuel injection device according to claim (1) of the utility model registration, characterized in that the fuel injection device comprises: (3) Utility model registration claim (1) characterized in that a detection means for detecting an external condition is provided, and the fuel injection time of the injection nozzle is finely adjusted based on a detection signal from the detection means. Or the fuel injection device described in (2). (4) The fuel control section is provided with a fuel flow control means disposed in a fuel bypass passage that bypasses the jet, and the detection means, and the fuel flow control means is controlled based on a detection signal from the detection means. 2. The fuel injection device according to claim 1 or 2, wherein the fuel injection device is configured to finely adjust the fuel injection amount of the injection nozzle when activated.