JPS5827553U

JPS5827553U - Fuel control device during engine deceleration

Info

Publication number: JPS5827553U
Application number: JP11409481U
Authority: JP
Inventors: 水谷　光一
Original assignee: トヨタ自動車株式会社
Priority date: 1981-07-31
Filing date: 1981-07-31
Publication date: 1983-02-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

添付の図は本考案による減速時燃料制御装置が実施され
たエンジンの吸気系と燃料蒸気吸着システムを示す概略
構成図である。１・・・エンジン、２・・・気化器、３・・・吸気マニ
ホールド、４…吸気通路、５…スロツトルバルブ、６・
・・スローポート、７・・・アイドルポート、８・・・
スロー燃料通路、９・・・フロート室、１０・・・フロ
ート、１１・・・メインジェット、１２・・・メイン燃
料通路、１３・・・スロージェット、１４・・・弁ポー
ト、１５・・・弁座部材、１６・・・弁要素、１７・・
・ソレノイド、１８・・・プランジャ、１９・・・電磁
コイル、２０・・・ばね、２１・・・チャコールキャニ
スタ、２２．２３・・・燃料蒸気取入ポート、２４・・
・燃料蒸気取出ポート、２５・・・大気開放ポート、２
６・・・導管、２７・・・逆止弁、２８・・・導管、２
９・・・パージポート、３０・・・導管、３１・・・開
閉弁、３２・・・導管、３３・・・燃料蒸気供給ポート
、３４・・・制御装置、３５・・・負圧センサ、３６・
・・エンジン回転数センサ、３７・・・負圧取出ポート
。The attached figure is a schematic diagram showing the intake system and fuel vapor adsorption system of an engine in which the deceleration fuel control device according to the present invention is implemented. DESCRIPTION OF SYMBOLS 1... Engine, 2... Carburetor, 3... Intake manifold, 4... Intake passage, 5... Throttle valve, 6...
...Slow port, 7...Idle port, 8...
Slow fuel passage, 9... Float chamber, 10... Float, 11... Main jet, 12... Main fuel passage, 13... Slow jet, 14... Valve port, 15... Valve Seat member, 16... Valve element, 17...
・Solenoid, 18... Plunger, 19... Electromagnetic coil, 20... Spring, 21... Charcoal canister, 22. 23... Fuel vapor intake port, 24...
・Fuel vapor extraction port, 25...Atmospheric release port, 2
6... Conduit, 27... Check valve, 28... Conduit, 2
9... Purge port, 30... Conduit, 31... Open/close valve, 32... Conduit, 33... Fuel vapor supply port, 34... Control device, 35... Negative pressure sensor, 36・
...Engine speed sensor, 37...Negative pressure extraction port.

Claims

[Scope of utility model registration request]

A deceleration fuel control device for an engine operated with a fuel vapor adsorption device that adsorbs and holds fuel vapor generated in the fuel supply system cuts off the supply of fuel from the main fuel supply system to the engine during deceleration. a fuel cut device; a passage means for connecting a port opening into the intake passage downstream of the throttle valve of the engine intake system to a fuel vapor extraction port of the fuel vapor adsorption device; A fuel control device during deceleration, characterized in that it has a valve for shutting off the means.