JPS6034549U - variable venturi carburetor - Google Patents
variable venturi carburetorInfo
- Publication number
- JPS6034549U JPS6034549U JP12765083U JP12765083U JPS6034549U JP S6034549 U JPS6034549 U JP S6034549U JP 12765083 U JP12765083 U JP 12765083U JP 12765083 U JP12765083 U JP 12765083U JP S6034549 U JPS6034549 U JP S6034549U
- Authority
- JP
- Japan
- Prior art keywords
- suction
- metering
- suction piston
- venturi
- temperature
- 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
Landscapes
- Means For Warming Up And Starting Carburetors (AREA)
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
′ 第１図はこの考案の一実施例の可変ベンチュリ気化
器断面図、第２図イは従来及びこの考案の可変ベンチキ
ュリ気化器の低温始動前におけるメータリングニードル
とメインジェットのメータリング部との相対位置を示す
説明図、第２図用よこの考案の可変ベンチュリ気化器の
中温時におけるメータリングニードルとメータリング部
との相対位置を示す説明図、第２図ハはアイドリング運
転時における従来の可変ベンチュリ気化器のメータリン
グニードルとメータリング部との相対位置、及びこの考
案の高温始動前のメータリングニードルとメータリング
部との相対位置を示す説明図、第３図は第１図のニード
ルホルダの拡大図、第４図はこの考案の感温アクチュエ
ータのワックス温度に対するサクションピストンの移動
量との関係を示す説明図である。
１・・・本体、２・・・サクションチャンバ、３・・・
サクションピストン、３ａ・・・内側端部、４・・・メ
ータリングニードル、４ａ・・・小径部、４ｂ・・・大
径部、５・・・メータリングジェット、５ａ・・・メー
タリング部、１１・・・ベンチュリ部、１２・・・サク
ションスプリング、２５・・・感温アクチュエータ、３
０・・・押棒、Ａ・・・負圧室、Ｗ・・・ワックス。' Fig. 1 is a sectional view of a variable venturi carburetor according to an embodiment of the present invention, and Fig. 2 A is a relative view of the metering needle and the main jet metering section of the conventional variable venturi carburetor and the variable venturi carburetor of this invention before starting at a low temperature. Figure 2 is an explanatory diagram showing the relative position of the metering needle and the metering part at medium temperature of the variable venturi carburetor of this invention. An explanatory diagram showing the relative positions of the metering needle and the metering part of the venturi carburetor and the relative positions of the metering needle and the metering part before high-temperature startup of this invention. Figure 3 shows the needle holder of Figure 1. FIG. 4 is an explanatory diagram showing the relationship between the wax temperature of the temperature-sensitive actuator of this invention and the amount of movement of the suction piston. 1...Main body, 2...Suction chamber, 3...
Suction piston, 3a...Inner end, 4...Metering needle, 4a...Small diameter part, 4b...Large diameter part, 5...Metering jet, 5a...Metering part, 11... Venturi part, 12... Suction spring, 25... Temperature-sensitive actuator, 3
0... Push rod, A... Negative pressure chamber, W... Wax.
Claims (1)
プリングを介して進退可能に取りつけられサクションチ
ャンバの負圧室に作用する吸入空気の負圧の強さに応じ
て進退してベンチュリ部の面積を変えるサクションピス
トンと、メータリング部を有し前記サクションピストン
と対向する箇所に設けられたメインジェットと、前記メ
インジェット内に挿入されてメータリング部との間に環
状の間隙を形成しかつ低温時でサクションピストンが閉
じている時には前記間隙の面積を大きくするための小径
部を有する前記サクションピストンのベンチュリ側端部
に取りつけられたメータリングニードルとを有する車両
用エンジンの可変ベンチュリ気化器であって、エンジン
の雰囲気温度が上昇すると内部の部材が変化することに
より押し出される押棒により閉じ側に位置するサクショ
ンピストンを押圧して開き側に移動させる感温アクチュ
エータを設けたことを特徴とする可変ベンチュリ気化器
。A suction piston is attached to a suction chamber provided in the main body so as to be able to move back and forth via a suction spring, and moves back and forth to change the area of the venturi portion according to the strength of the negative pressure of intake air that acts on the negative pressure chamber of the suction chamber. an annular gap is formed between a main jet having a metering portion and provided at a location facing the suction piston, and a metering portion inserted into the main jet, and the suction piston closes at low temperatures; and a metering needle attached to the venturi side end of the suction piston, the metering needle having a small diameter portion for increasing the area of the gap when the engine ambient temperature is increased. A variable venturi carburetor characterized in that it is provided with a temperature-sensitive actuator that presses a suction piston located on the closing side and moves it to the opening side by a push rod that is pushed out by changing an internal member when the temperature rises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12765083U JPS6034549U (en) | 1983-08-17 | 1983-08-17 | variable venturi carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12765083U JPS6034549U (en) | 1983-08-17 | 1983-08-17 | variable venturi carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6034549U true JPS6034549U (en) | 1985-03-09 |
Family
ID=30289847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12765083U Pending JPS6034549U (en) | 1983-08-17 | 1983-08-17 | variable venturi carburetor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6034549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000065220A1 (en) * | 1999-04-26 | 2000-11-02 | Masato Eda | Variable venturi type carburetor with variable fuel metering device |
-
1983
- 1983-08-17 JP JP12765083U patent/JPS6034549U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000065220A1 (en) * | 1999-04-26 | 2000-11-02 | Masato Eda | Variable venturi type carburetor with variable fuel metering device |
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