JPS6028254U

JPS6028254U - Air valve type vaporizer

Info

Publication number: JPS6028254U
Application number: JP11868983U
Authority: JP
Inventors: 博諏訪原
Original assignee: トヨタ自動車株式会社
Priority date: 1983-08-01
Filing date: 1983-08-01
Publication date: 1985-02-26

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]

第１図は本考案によるエアパル１式気化器の側面断面図
、第２図は第１図の■−■線に沿ってみた側面断面図、
第３図は２次側スロットル弁開度と１次側気化器のベン
チュリ負圧との関係を示す線図である。２・・・・・・１次側気化器、３・・・・・・２次側気
化器、４．８・・・・・・吸気通路、９・・・・・・エ
アバルブ、１２・・・・・・フロート室、１６・・・・
・・メインジェット、２３・・・・・・メタリンダロッ
ド、２４・・・・・・つ□エル、２５・・・・・・ピッ
クアップチューブ、３０・・・・・・ピストン、３１−
・・・・・・負圧室。Fig. 1 is a side sectional view of the Airpal 1 type vaporizer according to the present invention, Fig. 2 is a side sectional view taken along the line ■-■ in Fig. 1,
FIG. 3 is a diagram showing the relationship between the secondary throttle valve opening and the venturi negative pressure of the primary carburetor. 2...Primary side carburetor, 3...Secondary side carburetor, 4.8...Intake passage, 9...Air valve, 12... ...Float chamber, 16...
・・Main jet, 23・・Metalinda rod, 24・・・L, 25・・Pickup tube, 30・・・Piston, 31−
...Negative pressure chamber.

Claims

[Scope of utility model registration request]

An air valve that is controlled to open and close by the intake air flow is provided in the intake passage of the secondary side carburetor, an acceleration fuel well is formed on the side of the intake passage of the secondary side carburetor, and the fuel is vaporized through the throttle. A pick-up tube for supplying accelerated fuel connected to the well and extending in a substantially vertical direction is inserted into the well so that a fuel inlet of the tube is opened into the fuel in the well, and a fuel outlet of the pick-up tube is connected to the well. In the air valve type carburetor, which is opened in the intake passage between the air valve and the secondary throttle valve, a piston that responds to the venturi negative pressure of the primary side carburetor is inserted into the lower end of the well, and the venturi When the negative pressure becomes larger than a predetermined negative pressure, the piston is moved in a direction to increase the volume of the well, and when the venturi negative pressure becomes smaller than the predetermined negative pressure, the volume of the well is decreased. An air valve type carburetor that moves the piston in both directions.