| 摘要 |
PURPOSE:To obtain a smooth rotation of an engine, by controlling fuel, flowing in a main fuel passage, with a fuel control valve simultaneously decreasing a quantity of air, fed to the main fuel passage, after the fuel begins to flow out. CONSTITUTION:Under an operational condition when a throttle valve 14 is opened and a fuel feed from a main nozzle 18 is started, fuel begins to flow from a main fuel passage 20 to the main nozzle 18. At this time, metering air through an auxiliary air bleed 40 in an axuliary air bleed passage 38 is fed to the periphery of an emulsion tube 26 additionally to air flowing into the emulsion tube 26 from a main air bleed 28. When the throttle valve 14 is further opened to increase a quantity of air, an air feed to the auxiliary air bleed passage 38 is cut off by an open-close valve 42. |
