JPS63141861U

JPS63141861U -

Info

Publication number: JPS63141861U
Application number: JP3473787U
Authority: JP
Priority date: 1987-03-10
Filing date: 1987-03-10
Publication date: 1988-09-19
Anticipated expiration: 2002-03-10
Also published as: JPH0517400Y2

Description

[Brief explanation of the drawing]

第１図は実用新案登録請求の範囲に対応して本
考案に係るエンジンの燃料供給装置の基本構成を
示す図、第２図は本考案に係るエンジンの燃料供
給装置の一例をそれが適用されたエンジンととも
に示す概略構成図、第３図は第２図に示される例
における主要部の構成を示す部分拡大図、第４図
は第２図に示される例の動作説明に供されるタイ
ムチヤート、第５図及び第６図は第２図に示され
る例においてコントロールユニツトにマイクロコ
ンピユータが用いられた場合における当該マイク
ロコンピユータが実行するプログラムの一例を示
すフローチヤートである。図中、１０はエンジン本体、１２は吸気通路、
１５は気化器、１７はスロー系燃料通路、１８は
燃焼室、２０は点火プラグ、２２はスローカツト
ソレノイド弁、２４はデイストリビユータ、２７
はイグニツシヨンコイル、３０は主イグニツシヨ
ンスイツチ、３１は補助イグニツシヨンスイツチ
、３７はアイドルスイツチ、１００はコントロー
ルユニツトである。 FIG. 1 is a diagram showing the basic configuration of an engine fuel supply system according to the present invention in accordance with the claims of the utility model registration, and FIG. 2 is an example of an engine fuel supply system according to the present invention to which it is applied. 3 is a partially enlarged view showing the configuration of the main parts in the example shown in FIG. 2, and FIG. 4 is a time chart for explaining the operation of the example shown in FIG. 2. , FIG. 5, and FIG. 6 are flowcharts showing an example of a program executed by a microcomputer in the case where a microcomputer is used as the control unit in the example shown in FIG. In the figure, 10 is the engine body, 12 is the intake passage,
15 is a carburetor, 17 is a slow system fuel passage, 18 is a combustion chamber, 20 is a spark plug, 22 is a slow cut solenoid valve, 24 is a distributor, 27
30 is an ignition coil, 30 is a main ignition switch, 31 is an auxiliary ignition switch, 37 is an idle switch, and 100 is a control unit.

Claims

[Scope of utility model registration request]

a fuel supply means for supplying an amount of fuel to the engine according to its operating state; and when the operating state of the engine satisfies a predetermined condition and when the ignition switch is turned off, the fuel supply means fuel supply stop means for causing the engine to take a fuel supply stop state; ignition continuation means for continuing the operation of the ignition system in the engine for a predetermined period immediately after the ignition switch is turned off; A fuel supply device for an engine, comprising: failure determination means for determining whether or not there is a failure in the fuel supply stop means based on the rate of decrease in the engine rotational speed in the fuel supply stop means.