JPS5842353U

JPS5842353U - vaporizer

Info

Publication number: JPS5842353U
Application number: JP13557981U
Authority: JP
Inventors: 小室　弘史; 河野　孝重; 大沢　忠雄
Original assignee: 株式会社日立製作所
Priority date: 1981-09-14
Filing date: 1981-09-14
Publication date: 1983-03-22

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 the drawing]

第１図は本考案−実施例の可変ベンチュリ形気化器の断
面図、第２図は従来のピストンをニードル側から見た下
面図、第３図は本考案の一実施例ピストンをニードル側
から見た下面図、第４図及び第５図は本考案応用実施例
のピストン部側面図及び下面図、第６図は従来のピスト
ン摺動部断面図、第７図は本考案をピストン摺動部に適
用した場合の応用実施例断面図である。１・・・ピストン、２・・・ニードル、３・・・ノズル
、４・・・フロート室、５・・・絞弁、６・・・ピスト
ンガイド部、７・・・ダイヤフラム、８・・・ばね、９
・・・ダイヤフラム室、１０・・・吸気通路、１１・・
・負圧穴、ＩＡ・・・摺動部、ＩＢ・・・溝、６Ａ・・
・凸部、６Ｂ・・・逃げ部。Fig. 1 is a sectional view of a variable venturi type carburetor according to an embodiment of the present invention, Fig. 2 is a bottom view of a conventional piston as seen from the needle side, and Fig. 3 is an embodiment of the piston of the present invention as seen from the needle side. 4 and 5 are side and bottom views of the piston part of an applied example of the present invention, Figure 6 is a sectional view of the conventional piston sliding part, and Figure 7 is a piston sliding part of the present invention. FIG. 3 is a cross-sectional view of an applied example when applied to DESCRIPTION OF SYMBOLS 1... Piston, 2... Needle, 3... Nozzle, 4... Float chamber, 5... Throttle valve, 6... Piston guide part, 7... Diaphragm, 8... spring, 9
...Diaphragm chamber, 10...Intake passage, 11...
・Negative pressure hole, IA...Sliding part, IB...Groove, 6A...
-Convex part, 6B... relief part.

Claims

[Scope of Claim for Utility Model Registration] 1. Piston number facing into the intake passage In a variable venturi type carburetor that changes the venturi ventilation area by moving up and down according to the intake air flow rate, the sliding part of the piston has a piston movement direction. A vaporizer characterized in that a groove or a convex portion is provided in the vaporizer. 2. A carburetor according to claim 1 of the utility model registration, characterized in that the piston guide portion is provided with a groove or a convex portion in a direction perpendicular to the movement of the piston.