JPS6352960U

JPS6352960U -

Info

Publication number: JPS6352960U
Application number: JP14643486U
Authority: JP
Priority date: 1986-09-26
Filing date: 1986-09-26
Publication date: 1988-04-09
Also published as: JPH045727Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る燃料供給装置
の概要図、第２図は第１図における第１の方向切
換電磁電磁弁の断面図、第３図のイは第２図の方
向切換電磁弁の非通電時におけるポートの連通状
態を示した概略図、第３図のロは第２図の方向切
換電磁弁の通電時におけるポートの連通状態を示
した概略図、第４図は従来の燃料供給装置の概要
図、である。１１……燃料供給通路、１３……燃料戻し通路
、１４……第１の方向切換電磁弁、１５……メイ
ン燃料タンク、１６……サブ燃料タンク、１９…
…第２の方向切換電磁弁、２６……スイツチ、３
０……電磁弁作動回路。 Fig. 1 is a schematic diagram of a fuel supply system according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of the first directional switching solenoid valve in Fig. 1, and A in Fig. 3 is the direction in Fig. 2. A schematic diagram showing the communicating state of the ports when the switching solenoid valve is not energized, B in FIG. 3 is a schematic diagram showing the communicating state of the ports when the directional switching solenoid valve in FIG. 2 is energized, and FIG. 1 is a schematic diagram of a conventional fuel supply device. 11...Fuel supply passage, 13...Fuel return passage, 14...First direction switching solenoid valve, 15...Main fuel tank, 16...Sub fuel tank, 19...
...Second directional solenoid valve, 26...Switch, 3
0... Solenoid valve operating circuit.

Claims

[Scope of utility model registration request]

A fuel supply passage that supplies fuel to the engine is connected to a main fuel tank and a sub-fuel tank via a first directional solenoid valve, and a fuel return passage that returns a portion of the fuel supplied to the engine is connected to a first directional solenoid valve. By connecting to the main fuel tank and the sub-fuel tank via two directional switching solenoid valves, and simultaneously energizing or de-energizing the first directional switching solenoid valve and the second directional switching solenoid valve, In the fuel supply device, both the fuel supply passage and the fuel return passage can be switched to communicate with either the main fuel tank or the sub-fuel tank, wherein the first direction switching solenoid valve and the second direction switching solenoid valve are connected to each other. A fuel supply device characterized in that the directional switching solenoid valve and the directional switching solenoid valve are electrically connected in series.