JPH0484749U

JPH0484749U -

Info

Publication number: JPH0484749U
Application number: JP12973990U
Authority: JP
Priority date: 1990-11-30
Filing date: 1990-11-30
Publication date: 1992-07-23
Anticipated expiration: 2005-10-25
Also published as: JPH0746758Y2

Description

[Brief explanation of the drawing]

図面は本考案の気化器の始動燃料調整装置の実
施例を示し、第１図は気化器本体に設置された本
考案の気化器の始動燃料調整装置の全体構造を示
す縦断面図、第２図はその側面図、第３図は第１
図における本装置の作動部ｓ１部分の拡大図、第
４図は第３図の−線断面図、第５図は吸気通
路と始動用吸気通路との配置関係を示す模式断面
図である。１……気化器、２……吸気通路、３……気化器
本体、４……フロート室、５……フロート室本体
、９……始動用吸気通路、９ａ……上流側吸気通
路、９ｂ……下流側吸気通路、１０……始動用燃
料通路、１３……ハウジング、１４……始動用燃
料ノズル、１５……始動用摺動弁、１６……ニー
ドル弁、２０……始動用流入通路、２１……始動
用流出通路、２２……燃料流入口。 The drawings show an embodiment of the starting fuel regulating device for a carburetor of the present invention, and FIG. The figure is a side view, and the third figure is the first one.
FIG. 4 is a sectional view taken along the line -- in FIG. 3, and FIG. 5 is a schematic sectional view showing the arrangement relationship between the intake passage and the starting intake passage. DESCRIPTION OF SYMBOLS 1... Carburetor, 2... Intake passage, 3... Carburetor body, 4... Float chamber, 5... Float chamber main body, 9... Intake passage for starting, 9a... Upstream intake passage, 9b... ...downstream intake passage, 10... fuel passage for starting, 13... housing, 14... fuel nozzle for starting, 15... sliding valve for starting, 16... needle valve, 20... inflow passage for starting, 21... Starting outflow passage, 22... Fuel inlet.

補正平３．２．２２図面の簡単な説明を次のように補正する。Correction 3.2.22. The brief description of the drawing has been amended as follows.

【図面の簡単な説明】図面は本考案の気化器の始動燃料調整装置の実
施例を示し、第１図は気化器本体に設置された本
考案の気化器の始動燃料調整装置の全体構造を示
す縦断面図、第２図はその側面図、第３図は第１
図における本装置の作動部Ｓ１部分の拡大図、第
４図は第３図の−線断面図、第５図は第４図
の−線断面図、第６図は吸気通路と始動用吸
気通路との配置関係を示す模式的断面図である。
第７図ａ，ｂは従来の始動燃料調整装置の構造を
示す図である。１……気化器、２……吸気通路、３……気化器
本体、４……フロート室、５……フロート室本体
、９……始動用吸気通路、９ａ……上流側吸気通
路、９ｂ……下流側吸気通路、１０……始動用燃
料通路、１３……ハウジング、１４……始動用摺
動弁、１５……始動用燃料ノズル、１６……ニー
ドル弁、２０……始動用流入通路、２１……始動
用流出通路、２２……燃料流入口。[Brief Description of the Drawings] The drawings show an embodiment of the carburetor starting fuel regulating device of the present invention, and Fig. 1 shows the overall structure of the carburetor starting fuel regulating device of the present invention installed in the carburetor body. Fig. 2 is a side view, and Fig. 3 is a longitudinal sectional view.
4 is a sectional view taken along the - line in FIG. 3, FIG. 5 is a sectional view taken along the - line in FIG. 4, and FIG. 6 is an intake passage and a starting intake passage. FIG. 2 is a schematic cross-sectional view showing the arrangement relationship between
FIGS. 7a and 7b are diagrams showing the structure of a conventional starting fuel adjustment device. DESCRIPTION OF SYMBOLS 1... Carburetor, 2... Intake passage, 3... Carburetor body, 4... Float chamber, 5... Float chamber main body, 9... Intake passage for starting, 9a... Upstream intake passage, 9b... ...Downstream intake passage, 10... Fuel passage for starting, 13... Housing, 14... Sliding valve for starting, 15... Fuel nozzle for starting, 16... Needle valve, 20... Inflow passage for starting, 21... Starting outflow passage, 22... Fuel inlet.

Claims

[Claims for Utility Model Registration] 1. A carburetor is composed of a carburetor body having a penetrating intake passage and a float chamber body disposed at the lower part of the carburetor body to define a float chamber, A starting intake passage is formed bypassing the intake passage, and is connected to each of the upstream and downstream side portions of the starting intake passage in the middle of the starting intake passage, and
A starting slide valve connected to a starting fuel passage formed in communication with the float chamber and at least disabling the starting intake passage; and a starting fuel communicating with the starting fuel passage. A starting fuel adjustment device is disposed having a functional member including a nozzle and a needle valve held at the lower end of the starting sliding valve and inserted into and removed from a nozzle hole of the starting fuel nozzle, and the starting fuel adjusting device is provided with a functional member including a needle valve that is held at the lower end of the starting sliding valve and inserted into and removed from the nozzle hole of the starting fuel nozzle, and when the engine is started, the starting fuel adjustment device is provided. In a carburetor having a starting fuel adjusting device that supplies a mixture with high fuel concentration to the downstream side of a starting air intake passage, in the carburetor main body, one end on the upstream side of the starting air intake passage communicates with the intake passage; The other end opens to the side surface of the carburetor body, one downstream end of the starting intake passage communicates with the intake passage, the other end opens to the side face of the carburetor body, and the starting fuel passage One end communicates with the float chamber body, and the other end opens at a side surface of the carburetor main body, and the starting fuel adjustment device includes the functional member in a housing separate from the carburetor main body, and the starting fuel adjustment device includes the functional member in a housing separate from the carburetor main body. A starting fuel adjustment device for a carburetor, characterized in that a starting inflow/outflow passage and a fuel inlet are respectively connected to openings of a starting intake passage and a fuel passage formed in the carburetor body. (2) The mounting structure of the starting fuel adjusting device in the carburetor according to claim 1, wherein the openings at the ends of the housing of the starting inflow and outflow passages and the fuel inflow port are formed into wide openings.