JPS6095169U

JPS6095169U - Connection structure between fuel introduction path and fuel return path to the float chamber

Info

Publication number: JPS6095169U
Application number: JP18687783U
Authority: JP
Inventors: 養之助初見
Original assignee: 三國工業株式会社
Priority date: 1983-12-05
Filing date: 1983-12-05
Publication date: 1985-06-28

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図乃至第５図は燃料帰還路の従来例を示し、第６図
及び第７図は本考案の浮子室への燃料導入路と燃料帰還
路との結合構造を示し、第７図は第６図の■−■断面図
である。符号の説明：２・・・加速ポンプ、３・・・燃料室、４
・・・燃料帰還路、４−１・・・絞り、５・・・燃料室
裏面に接する通路、６・・・燃料流入口（燃料管接手）
、７・・・横行燃料通路、訃・・バルブシート、９・・
・ニードルバルブ、１０・・・フロート、１１・・・盲
栓、１２・・・燃料蒸気溜め室、１３・・・パイプ、１
４・・・パイプ大径部、１５・・・パイプ大径部圧入孔
。1 to 5 show conventional examples of fuel return paths, FIGS. 6 and 7 show the coupling structure of the fuel introduction path to the float chamber and the fuel return path of the present invention, and FIG. 6 is a cross-sectional view taken along the line ■-■ in FIG. 6; Explanation of symbols: 2...acceleration pump, 3...fuel chamber, 4
...Fuel return path, 4-1... Throttle, 5... Passage in contact with the back of the fuel chamber, 6... Fuel inlet (fuel pipe joint)
, 7... Traverse fuel passage, Death... Valve seat, 9...
・Needle valve, 10...Float, 11...Blind plug, 12...Fuel vapor reservoir chamber, 13...Pipe, 1
4... Pipe large diameter section, 15... Pipe large diameter section press-fit hole.

Claims

[Scope of utility model registration request]

(1) A fuel return path 4 that returns a portion of the supplied fuel to the fuel tank is opened in the transverse fuel passage 7 from the fuel inlet 6 of the carburetor to the float chamber to which fuel is supplied by the fuel pump, and the fuel is supplied to the fuel tank. In a vaporizer of the type that allows circulation and prevents generation of fuel vapor in the fuel supply path, a fuel vapor reservoir chamber 12 is provided in contact with the upper side of the transverse fuel passage 7,
A pipe 13 that opens into the fuel vapor reservoir chamber 12 is provided projecting from the lower side of the transverse fuel passage 7, and the lower end of the pipe 13 is connected to the fuel return path 4, thereby providing a fuel introduction path to the float chamber and the fuel. Return path 3゜, "===gate 4゜, 1゜ya. 9
The fuel introduction path to the float chamber as set forth in claim (1) of the utility model registration claim, which passes through in contact with the back surface of the fuel chamber 3 of the acceleration pump 2 linked to the first o~ and performs a cooling action on the acceleration pump 2. and the coupling structure with the fuel return path.