JPS58156144U - vaporizer - Google Patents

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図乃至第３図は従来装置に関するもので第１図は気
化器の要部断面図、第２図ａ、　　ｂはそれぞれ大、小
のチョーク弁の切り欠き形状図、第３図はチョーク全開
時の主空気ジェットの面積が空燃比に与える影響線図、
第４図乃至第１０図は本考案に係る実施例で第４図は気
化器の要部断面図、第５図は第４図のＳ矢視図、第６図
は突起付チョーク弁の斜視図、第７図はチョーク弁全開
時のエンジン回転数と主空気ジェットを流れる空気量の
関係線図、第８図は主空気ジェットを流れる空気量と流
量係数の関係線図、第９図は主空気ジェットが従来型で
面積がＡで小さい場合と従来型で面積がＣで大きい場合
と本考案による構造で主空気ジェットの面積が前記Ｃの
場合のエンジン回転数と空燃比Ａ／Ｆの関係線図、第１
０図は主空気ジェットの面積と始動容易なエンジン温度
の関係線図である。 １１・・・チョーク弁、１１ａ・・・制限部材（チョー
ク弁の突起）、１４・・・主空気ジェット。Figures 1 to 3 relate to conventional devices; Figure 1 is a cross-sectional view of the main parts of the carburetor, Figures 2a and b are cutout shapes of large and small choke valves, respectively, and Figure 3 is a diagram of the choke valve. Diagram of the influence of the area of the main air jet on the air-fuel ratio when fully open,
Figures 4 to 10 are embodiments of the present invention, Figure 4 is a sectional view of the main parts of the carburetor, Figure 5 is a view taken in the direction of arrow S in Figure 4, and Figure 6 is a perspective view of a choke valve with a protrusion. Figure 7 is a relationship diagram between the engine speed when the choke valve is fully open and the amount of air flowing through the main air jet, Figure 8 is a relationship diagram between the amount of air flowing through the main air jet and the flow coefficient, and Figure 9 is a relationship diagram between the amount of air flowing through the main air jet and the flow coefficient. Engine speed and air-fuel ratio A/F when the main air jet is a conventional type and has a small area A, when the conventional type has a large area C, and when the main air jet has the structure according to the present invention and the area C is Relationship diagram, 1st
Figure 0 is a diagram showing the relationship between the area of the main air jet and the engine temperature that facilitates starting. DESCRIPTION OF SYMBOLS 11... Choke valve, 11a... Limiting member (protrusion of choke valve), 14... Main air jet.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] チョーク弁に、該チョーク弁が一定開度以上のとき主空
気ジェットの吸気通路への開口部の全部又は一部を覆う
制限部材を装着した気化器。A carburetor in which a choke valve is equipped with a restriction member that covers all or part of an opening of a main air jet to an intake passage when the choke valve is opened to a certain degree or more.