JPS6027767A - Fuel regulator for carburetor - Google Patents
Fuel regulator for carburetorInfo
- Publication number
- JPS6027767A JPS6027767A JP58135937A JP13593783A JPS6027767A JP S6027767 A JPS6027767 A JP S6027767A JP 58135937 A JP58135937 A JP 58135937A JP 13593783 A JP13593783 A JP 13593783A JP S6027767 A JPS6027767 A JP S6027767A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel
- air passage
- throttle valve
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/23—Fuel aerating devices
- F02M7/24—Controlling flow of aerating air
- F02M7/28—Controlling flow of aerating air dependent on temperature or pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/06—Means for enriching charge on sudden air throttle opening, i.e. at acceleration, e.g. storage means in passage way system
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、エンノンに用いる気化器で、エンノンを急
加速するとき、燃料が薄くなるのを防いで適正空燃比が
得られるように改善した、に止器の燃料調節装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention is a carburetor used for an Ennon, and is an improved fuel control valve that prevents the fuel from becoming thin and provides an appropriate air-fuel ratio when the Ennon is rapidly accelerated. Regarding equipment.
エンジンに用いる気化器は、主空気通路に主燃料出口が
開口していて、主空気通路に流れる吸気によって燃料が
吸出されて混合気ができるように、ンっている。３気化
器のスロットル弁を適度に開いて揮転中に、急にスロッ
トル弁を大きく開いて急加速に移ると、吸気は粘性が低
いため追従がよくて直ぐに多く流れるが、燃料は粘性が
あるため直ぐに追従できず遅れて流出す。この−瞬の間
、空燃比が薄くなり、エンジンが息付き現象を起して具
合が悪い。A carburetor used in an engine has a main fuel outlet opening in a main air passage, and is arranged so that fuel is sucked out by intake air flowing into the main air passage to form an air-fuel mixture. 3 When the throttle valve of the carburetor is opened moderately and the engine is volatilizing, when the throttle valve is suddenly opened wide and the engine accelerates rapidly, the intake air has low viscosity, so it follows well and flows quickly, but the fuel is viscous. Therefore, it cannot follow immediately and leaks out later. During this moment, the air-fuel ratio becomes lean, causing the engine to breathe and become unwell.
この発明は、かか、る点に鑑み、１仇加速のときだけ、
燃料を増量して薄くなることを防ぎ、エンジンが息付き
現象を起さないように改善したもので、以下本発明を図
面に示す実施例について説明する。In view of the above, this invention provides, only in the case of one acceleration,
The present invention is improved by increasing the amount of fuel to prevent it from becoming lean and preventing the engine from breathing.Hereinafter, an embodiment of the present invention shown in the drawings will be described.
気化器は、横方向に主空気通路ｌが設けてあり、その途
中に、スロットル弁２が上−Ｆに摺動操作して主空気通
路ｌを開閉するように設けである。主空気通路１のスロ
ットル弁２の下側には、主燃料出口３が開口している。The carburetor is provided with a main air passage 1 in the lateral direction, and a throttle valve 2 is provided in the middle of the main air passage 1 so as to open and close the main air passage 1 by sliding upwardly -F. A main fuel outlet 3 opens below the throttle valve 2 in the main air passage 1 .
そして、主燃料出口３には、スロットル弁２の下方に突
出させた針弁４が挿入され、スロットル弁２と共に抜き
差しされて、スロットル弁２の開度に応じて開口面積が
調節される。主燃料用１」３には、エマルジョンチュー
ブ５があって、空気通路６から空気が送られ、この空気
通路６の空気と燃料が、主空気通路ｌを流れる空気に吸
出されるようになっている。ところで、空気通路６と並
列に補助空気通路７を設け、この補助空気通路７の途中
に、ノランノヤー開閉弁８を配置する。グランツヤ−開
閉弁８は、横孔９が補助空気通路７＆ζ合ったとき、補
助空気通路７が通じるようにしである。グランジャー開
閉弁８は、バネ１０を介して操作ワイヤｊ１に連結する
。操作ツイヤ１１は、スロットル弁２を操作するワイー
１２と連動させて操作するようにしである。父、グラン
ジャー開閉弁８の下端は負圧室１３のダイヤフラム１４
に連結する。ダイヤフラム１４は、押しバネ１５ｖこよ
って付勢させてあり、負圧室１３は、・９イグ１６でエ
ンジンの吸メ（管１７に接続する。A needle valve 4 projecting below the throttle valve 2 is inserted into the main fuel outlet 3, and is inserted and removed together with the throttle valve 2, so that the opening area is adjusted according to the opening degree of the throttle valve 2. The main fuel 1'' 3 has an emulsion tube 5 to which air is sent from an air passage 6, and the air and fuel in this air passage 6 are sucked out by the air flowing through the main air passage 1. There is. Incidentally, an auxiliary air passage 7 is provided in parallel with the air passage 6, and a Norannoya on-off valve 8 is disposed in the middle of this auxiliary air passage 7. The grand gloss on-off valve 8 is configured so that the auxiliary air passage 7 communicates with the horizontal hole 9 when the auxiliary air passage 7 &ζ meet. Granger on-off valve 8 is connected to operating wire j1 via spring 10. The operating wheel 11 is designed to be operated in conjunction with a wire 12 that operates the throttle valve 2. Father, the lower end of the Granger on-off valve 8 is the diaphragm 14 of the negative pressure chamber 13.
Connect to. The diaphragm 14 is biased by a push spring 15v, and the negative pressure chamber 13 is connected to the engine's suction pipe 17 through a 9-ignition 16.
しかして、主燃枦）出口３から吸出される燃料は、空気
通路６と、補助空気通路７が開いていて、両方から空気
が流入したとき、適正嬌度になるように七ツノーングす
る。急加速をするＪ：うにスｌ’：＋７ トル弁２を大
きく開くと、これと同時＆Ｃｆう／ジャー開閉弁８も引
上げられ、横孔９が袖助空′Ａ通路７から外れて、補助
空気通路７が閉じる。このため、主燃料出口３のエマル
ションチューブ５に流れる空気は、空気通路６だけから
になり、空気量が減って、濃い燃料が主燃料出口３に流
れる。このため、主空気通路ｌに流れる急激な空気増量
に燃料が追従し、適正空燃比が保て、息付きを防ぐこと
ができる。尚１．スロツトル弁２を急に開いて急加速に
移った直後は、エンジン回転が低くスロットル弁２の開
度が大きいので、吸気管１７の負圧は小さい。急、加速
が進んで、エンジン回転が高くなると、吸入空気量が増
し、吸気管１７の負圧が大きくなり、負圧室１３に負圧
が１劫いて、バネ１（Ｊ及び押しバネ１５に抗してダイ
ヤフラム１４ヲ引き、グランジャー開閉弁８を引いて、
横孔９を補助空気；ＦＴ］路７に合せ、補助空気通路７
に空気が流れる」：うになる。このときは、急加速が進
んだ後で、適正な空燃比で高速運転ができる。Therefore, when the air passage 6 and the auxiliary air passage 7 are open and air flows in from both, the fuel sucked out from the main fuel cylinder outlet 3 is blown to an appropriate level of strength. Accelerating suddenly J: Unis l': +7 When the torque valve 2 is opened wide, the &Cf/jar on/off valve 8 is also pulled up at the same time, and the horizontal hole 9 is removed from the sleeve air passage 'A'A passage 7, and the auxiliary Air passage 7 is closed. Therefore, the air flowing into the emulsion tube 5 of the main fuel outlet 3 comes only from the air passage 6, the amount of air is reduced, and the rich fuel flows into the main fuel outlet 3. Therefore, the fuel follows the sudden increase in the amount of air flowing into the main air passage 1, maintaining an appropriate air-fuel ratio, and preventing breathing. Note 1. Immediately after the throttle valve 2 is suddenly opened and rapid acceleration is started, the engine rotation is low and the opening degree of the throttle valve 2 is large, so the negative pressure in the intake pipe 17 is small. When acceleration suddenly progresses and the engine speed increases, the amount of intake air increases, the negative pressure in the intake pipe 17 increases, and the negative pressure in the negative pressure chamber 13 increases, causing the spring 1 (J and the push spring 15 to Pull the diaphragm 14 against the resistance, pull the Granger on-off valve 8,
Align the horizontal hole 9 with the auxiliary air passage 7,
``The air flows through'': snarl. At this time, after rapid acceleration has progressed, high-speed operation is possible with an appropriate air-fuel ratio.
以上説、明したように、この発明は、主燃料出口の空気
通路と並列に補助空気通路を設け、該補助空気通路の途
中にグランジャー開閉弁を設け、フ。As explained and clarified above, the present invention provides an auxiliary air passage in parallel with the air passage of the main fuel outlet, and a Granger on-off valve is provided in the middle of the auxiliary air passage.
ジンツヤ−開閉弁をスロットル弁の操ｔ’ｌｌｉに連動
させてバネを介して引上げるようにすると共に、グラン
ジャー開閉弁の下端全負圧室のダイヤフラムに連結し、
負王室をエンジンの吸気管に連結して吸気管内の所定以
上の負圧のときｉう／ジャー１ｉｉ−１閉弁を引下げて
？１！ｉ助空気通路を開くようにしたので、エンノ／の
急加速のときだけ補助空気通路を閉シ、エマルションチ
ューブで混入される空気量を少くして、濃い燃料が送ら
れて、急加速時の燃料の追従遅れを防いで、濃い燃料を
送ることができるので、エンジンの息付き現象が１吊る
のを防ぐことができる。そして、急却速時以外では、補
助空気通路が開き、適正空燃比が保てる。こうして、急
加速時だけ燃料を増量できるので、セッチング自体をσ
い目にする必要がなく燃料の節約が図れる。The Granger on-off valve is linked to the operation of the throttle valve so that it can be pulled up via a spring, and the lower end of the Granger on-off valve is connected to the diaphragm of the entire negative pressure chamber,
When the negative pressure is connected to the engine intake pipe and the negative pressure in the intake pipe exceeds a certain level, the i/jar 1ii-1 closing valve is pulled down. 1! Since the auxiliary air passage is opened, the auxiliary air passage is closed only when the engine is suddenly accelerating, reducing the amount of air mixed in with the emulsion tube, allowing rich fuel to be sent, and reducing the amount of fuel during sudden acceleration. Since it is possible to send rich fuel while preventing a delay in tracking the fuel, it is possible to prevent the engine from sagging. At times other than rapid acceleration, the auxiliary air passage is open and an appropriate air-fuel ratio can be maintained. In this way, the amount of fuel can be increased only during sudden acceleration, so the setting itself can be reduced to σ
You don't have to see it clearly, so you can save fuel.
図は本発明の一実施例を示し、第１図は縦断側面図、り
５２図は要部の拡大縦断正面図である、２・・・スロッ
トル弁、３・・・主燃料出口、６・・・空気通路、７・
・・補助空気通路、８・・・グランジャー開閉弁、１０
・・・バネ、１３・・・負圧室、１４・・・ダイヤフラ
ム、１７・・・吸気管。
出願人代理人 猪 股 清The figures show one embodiment of the present invention, FIG. 1 is a longitudinal side view, and FIG. 52 is an enlarged longitudinal sectional front view of the main parts.・Air passage, 7・
... Auxiliary air passage, 8 ... Granger on-off valve, 10
... Spring, 13 ... Negative pressure chamber, 14 ... Diaphragm, 17 ... Intake pipe. Applicant's agent Kiyoshi Inomata
Claims (1)
補助空気通路の途中に戸ランジャー開閉弁を設け、グラ
ンジャー開閉弁をスロットル弁の操作に連動させてバネ
を介して引上げるようにすると共に、グランジャー開閉
弁の下端を負圧室のダイヤフラムに連結し、負圧室をエ
ンジンの吸気管に連結して吸気管内の所定以上の負圧の
ときグランジャー開閉弁を引下げて補助空気通路を聞く
ようにしたことを特徴とする気化器の燃料調節装置０An auxiliary air passage is provided in parallel with the main fuel outlet air passage, and a door lunger on-off valve is provided in the middle of the auxiliary air passage, and the granger on-off valve is pulled up via a spring in conjunction with the operation of the throttle valve. At the same time, the lower end of the Granger on-off valve is connected to the diaphragm of the negative pressure chamber, and the negative pressure chamber is connected to the engine intake pipe. Carburetor fuel adjustment device 0 characterized by listening to the passage
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58135937A JPS6027767A (en) | 1983-07-27 | 1983-07-27 | Fuel regulator for carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58135937A JPS6027767A (en) | 1983-07-27 | 1983-07-27 | Fuel regulator for carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6027767A true JPS6027767A (en) | 1985-02-12 |
Family
ID=15163325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58135937A Pending JPS6027767A (en) | 1983-07-27 | 1983-07-27 | Fuel regulator for carburetor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6027767A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56124229A (en) * | 1980-03-05 | 1981-09-29 | Matsushita Electric Ind Co Ltd | Manufacture of thin film |
| JPS5735937A (en) * | 1980-08-08 | 1982-02-26 | Mitsubishi Electric Corp | Plasma chemical reaction method |
-
1983
- 1983-07-27 JP JP58135937A patent/JPS6027767A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56124229A (en) * | 1980-03-05 | 1981-09-29 | Matsushita Electric Ind Co Ltd | Manufacture of thin film |
| JPS5735937A (en) * | 1980-08-08 | 1982-02-26 | Mitsubishi Electric Corp | Plasma chemical reaction method |
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