| 摘要 |
PURPOSE:To effect the uniform atomization of fuel and the uniform mixing of the fuel with introduced air despite the change in the flow rate of the air, by integrating the fuel measuring part and fuel ejection part of a venturi-type fuel feeder with each other and placing these parts at the central portion of an intake passage. CONSTITUTION:A bell-shaped resistor 4 is placed in the intake passage 1 on the face of the throat 2 of a carburetor C. The resistor 4 is provided with a rod 5 slidably fitted in a bearing 7 secured on a support member 6 and with a bracket 5 engaged with the tip 10a of a lever 10 swingably supported on the inside surface of the carburetor C. The fuel measuring part 17 comprising a large-diameter nozzle 18 for introducing the air and another nozzle 19 concentrically placed in the former nozzle is located beneath the resistor 4. The resistor is displaced depending on the quantity of the introduced air. A needle valve 21 is displaced by the resistor 4 to suck corresponding fuel out of the nozzle and eject the fuel through an ejection port 28.
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