JPS59144151U

JPS59144151U - Variable bench lily type vaporizer

Info

Publication number: JPS59144151U
Application number: JP3819783U
Authority: JP
Inventors: 大西　英一; 永井　規; 豊又吉; 篤米澤; 健中村; 淳一横山; 塩山　議市
Original assignee: 日産自動車株式会社
Priority date: 1983-03-16
Filing date: 1983-03-16
Publication date: 1984-09-26

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図は従来例の断面図、第２図、第３図は本考案の実
施例を示す要部断面図と全体構成図、第４図は第２図の
部分詳細断面図、第５図、第６図はそれぞれ本考案の他
の実施例を示す全体構成図と部分詳細断面図である。２・・・絞り弁、３・・・ベンチュリ固定部、４・・・
ベンチュリ部、５・・・ベンチュリ可動部、１１・・・
ノズル部、２２・・・大気室、２３・・・負圧室、２６
・・・サクションホール、２７・・・スプリング、３２
・・・サクショ　　　　−ンシリンダ、３３・・・サク
ションピストン、３５−・・・内筒、３７・・・オリフ
ィス、２８・・・ダンパ室、４３・・・キャップ、４５
・・・プランジャ、４６・・・連接棒、５２・・・加熱
装置、５３・・・熱線、５５．５６・・・スイッチ、６
１・・・ジェットニードル。Fig. 1 is a sectional view of a conventional example, Figs. 2 and 3 are a sectional view of essential parts and an overall configuration diagram showing an embodiment of the present invention, Fig. 4 is a detailed sectional view of a part of Fig. 2, and Fig. 5 , and FIG. 6 are an overall configuration diagram and a partially detailed sectional view showing another embodiment of the present invention, respectively. 2... Throttle valve, 3... Venturi fixing part, 4...
Venturi part, 5... Venturi movable part, 11...
Nozzle part, 22... Atmospheric chamber, 23... Negative pressure chamber, 26
...Suction hole, 27...Spring, 32
Suction cylinder, 33 Suction piston, 35 Inner cylinder, 37 Orifice, 28 Damper chamber, 43 Cap, 45
...Plunger, 46...Connecting rod, 52...Heating device, 53...Hot wire, 55.56...Switch, 6
1...Jet needle.

Claims

[Scope of utility model registration request]

Located in the middle of the intake passage, upstream of the throttle valve,
Introducing fuel from the float chamber A venturi fixing part with an open nozzle part and a suction piston slidably housed in a suction cylinder opposite to this fixing part are provided, and the fixing part and the suction piston are provided. A variable venturi portion is formed between the suction piston and the nozzle portion, and a jet needle passing through the nozzle portion is provided on the suction piston, and a negative pressure chamber and an atmospheric chamber are defined between the suction piston and the suction cylinder. A spring is inserted to bias the suction piston toward the venturi fixed part, and a venturi negative pressure is introduced through a suction hole formed in the suction piston so as to open in the variable venturi part, thereby increasing the intake flow rate. Or, the reason why the venturi negative pressure increases is that in a carburetor in which the suction piston is retracted against the spring to expand the variable venturi section, air enters and exits the inside of the suction cylinder through a predetermined orifice. A damper chamber is defined, a plunger slidably housed in the damper chamber is connected to the suction piston, and a heating device for heating the damper chamber is provided around the damper chamber. Variable venturi type carburetor.