| 摘要 |
<p>PROBLEM TO BE SOLVED: To maintain a minimum and maximum fuel flow rate and permit accurate fuel flow rate control by configuring the device so that a metering needle for adjusting an entry section of an inlet hole is axially movable, at least a portion of an axial movement range of an adjustment screw that is screwed to the inside of a bore of a carburetor. SOLUTION: A fuel mixing adjustment and restriction device 10, housed inside of a bore 12 of a carburetor body 14, is provided for metering a fuel flow rate of a fuel supplied from a carburetor to a main nozzle 21 in a main nozzle bore 20, and has a main body 24 which is fitted by pressing in the bore 12. This main body 24 has a through fuel flow passage 40 which communicates to a fuel metering chamber 16. In the main body 24, a metering needle 26 which is reciprocally moved in the longitudinal direction, is provided and energized by a spring 28 to the backward direction. In addition, this device has an adjustment screw 30. By forwarding by screwing the adjustment screw 30, the metering needle 26 is moved and a fuel flow section of an inlet hole 38 is changed for controlling the fuel flow rate.</p> |
