JPS61116158U

JPS61116158U -

Info

Publication number: JPS61116158U
Application number: JP7985U
Authority: JP
Priority date: 1985-01-07
Filing date: 1985-01-07
Publication date: 1986-07-22

Description

[Brief explanation of the drawing]

第１，２図はこの考案の実施例を示し、第１図
は２連式気化器の概略断面図、第２図はエンジン
回転数と出力との関係を示す図である。第３図は
この考案の従来技術を示すエンジン回転数と出力
との関係を示す図である。図において、２は２連式気化器、４は１次側気
化器、６は２次側気化器、８は１次側吸気通路、
１０は２次側吸気通路、１２は１次側スロツトル
弁、１４は２次側スロツトル弁、１６は１次側ベ
ンチユリ、１８は１次側センシングポート、２０
は２次側ベンチユリ、２２は２次側センシングポ
ート、２４は導圧通路、２６はアクチユエータ、
２８は負圧遅延弁である。 1 and 2 show an embodiment of this invention, with FIG. 1 being a schematic sectional view of a dual carburetor, and FIG. 2 being a diagram showing the relationship between engine speed and output. FIG. 3 is a diagram showing the relationship between engine speed and output, showing the prior art of this invention. In the figure, 2 is a double carburetor, 4 is a primary side carburetor, 6 is a secondary side carburetor, 8 is a primary side intake passage,
10 is a secondary side intake passage, 12 is a primary side throttle valve, 14 is a secondary side throttle valve, 16 is a primary side bench lily, 18 is a primary side sensing port, 20
is a secondary side bench lily, 22 is a secondary side sensing port, 24 is a pressure guiding passage, 26 is an actuator,
28 is a negative pressure delay valve.

補正昭６０．３．１２実用新案登録請求の範囲を次のように補正する
。Amendment March 12, 1980 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】１次側気化器と２次側気化器とを有する２連式
気化器の２次側スロツトル弁を開閉動作するアク
チユエータを設け、前記１次側気化器のベンチユ
リ負圧用１次側センシングポートと前記２次側気
化器のベンチユリ負圧用２次側センシングポート
とを前記アクチユエータに連通する導圧通路を設
け、この導圧通路途中にはセンシングポート方向
への流れを遅延させる遅延機構を設け、前記１次
側センシングポート径ＣＤ１と２次側センシング
ポート径ＣＤ２との比を３．５＜（ＣＤ１／ＣＤ２） ^２＜４．５に設定するとともに２次側センシングポート径Ｃ
Ｄ２をＣＤ２＜０．６mmに設定したことを特徴と
する２連式気化器の２次側スロツトル弁制御装置
。[Claims for Utility Model Registration] An actuator for opening and closing a secondary throttle valve of a dual carburetor having a primary carburetor and a secondary carburetor is provided, and the vent valve of the primary carburetor is A pressure impulse passage is provided that communicates the primary side pressure sensing port for pressure and the secondary side sensing port for bench lily negative pressure of the secondary side vaporizer with the actuator, and a pressure passage is provided in the middle of this pressure impulse passage to delay the flow toward the sensing port. A delay mechanism is provided to set the ratio of the primary sensing port diameter CD1 and the secondary sensing port diameter CD2 to 3.5<( CD1 / CD2 ) ² <4.5, and the secondary Side sensing port diameter C
A secondary side throttle valve control device for a dual carburetor, characterized in that D2 is set to CD2 <0.6 mm.

Claims

[Claims for Utility Model Registration] An actuator for opening and closing a secondary throttle valve of a dual carburetor having a primary carburetor and a secondary carburetor is provided, and the vent valve of the primary carburetor is A pressure impulse passage is provided that communicates the primary side pressure sensing port for pressure and the secondary side sensing port for bench lily negative pressure of the secondary side vaporizer with the actuator, and a pressure passage is provided in the middle of this pressure impulse passage to delay the flow toward the sensing port. A delay mechanism is provided to set the ratio of the primary sensing port diameter D1 and the secondary sensing port diameter D2 to 3.5<(D1/D2) ² <4.5, and the secondary sensing port diameter D
A secondary side throttle valve control device for a dual carburetor, characterized in that D2 is set to D2<0.6 mm.