MAIN METERING DEVICE MECHANISM OF AN ENGINE

Fuel is admitted through pipe 1 to chamber 2 containing float 3, which operates needle valve 4. From the float chamber, fuel is delivered through fuel jet 5 into well 6 and atomizer 7. The cover of the well has hole 8. When the engine is not operating, the fuel in the well and atomizer is at the same level as in the float chamber. When the engine begins to operate, pure fuel begins to flow out thr…