JPS59141140U

JPS59141140U - Variable bench lily type vaporizer

Info

Publication number: JPS59141140U
Application number: JP3638783U
Authority: JP
Inventors: 豊又吉; 永井　規; 大西　英一; 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: 1983-03-14
Filing date: 1983-03-14
Publication date: 1984-09-20

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 the drawing]

第１図は従来例の断面図、第２図はノズル部を２段に設
けた場合の断面図、第３図は本考案の第１実施例の断面
図である。１・・・吸気通路部、２・・・絞り弁、３・・・ベンチ
ュリ固定部、４・・・可変ベンチュリ部、９・・・本体
、１１゜１１Ａ、ＩＩＢ・・・ノズル部、１２・・・ノ
ズルボディ、２１・・・サクションシリンダ、２２・・
・大気室、２３・・・負圧室、２４・・・サクションピ
ストン、２６・・・サクションホール、２７・・・スプ
リング、２８・・・ジェットニードル、３２・・・フロ
ートチャンバ、５０・・・ライナ。FIG. 1 is a sectional view of a conventional example, FIG. 2 is a sectional view of a case where nozzle portions are provided in two stages, and FIG. 3 is a sectional view of a first embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Intake passage part, 2... Throttle valve, 3... Venturi fixed part, 4... Variable venturi part, 9... Main body, 11° 11A, IIB... Nozzle part, 12... ...Nozzle body, 21...Suction cylinder, 22...
- Atmospheric chamber, 23... Negative pressure chamber, 24... Suction piston, 26... Suction hole, 27... Spring, 28... Jet needle, 32... Float chamber, 50... Raina.

Claims

[Scope of claim for utility model registration] Located in the middle of the intake passage, upstream of the throttle valve,
A venturi fixing part having an open nozzle part for introducing fuel from a float chamber, 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 connected to each other. A variable venturi part is formed in between, and the suction piston is provided with a jet needle passing through the nozzle part, and a venturi negative pressure is applied through a suction hole formed in the suction piston so as to open facing the variable venturi part. In a carburetor in which the suction piston is retracted and the variable venturi portion is expanded as the intake flow rate or venturi negative pressure increases, the nozzle body in which the nozzle portion is formed is slidable relative to the main body. If you do that. Both are variable venturi type carburetors characterized by having a ceramic material coated on the inner periphery of the main body.