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  • Chapter 2: Engine Fuel & Fuel Metering Systems › Basic Fuel System

    During starting, the boost pump forces fuel through a bypass in the engine-driven pump to the metering device. Once the engine-driven pump is rotating at sufficient speed, it takes over and delivers fuel to the metering device ... specified pressure. The airframe fuel system begins with the fuel tank and ends at the engine fuel system. The engine fuel system usually includes the engine-driven pumps and the fuel metering systems. In aircraft powered with a reciprocating engine…

  • Chapter 14: Aircraft Fuel Systems › Small Single-Engine Aircraft Fuel Systems › High-Wing Aircraft with Fuel Injection System

    High-Wing Aircraft with Fuel Injection System Some high-wing, high-performance, single-engine general aviation aircraft are equipped with a fuel system that features fuel injection rather than a carburetor. It combines gravity flow with ... fuel pump(s). The Teledyne-Continental system is an example. [Figure 14-14] Note: Fuel injection systems spray pressurized fuel into the engine intake or directly into the cylinders. Fuel without any air mixed in is required to provide…

  • Chapter 2: Engine Fuel & Fuel Metering Systems › Carburetor Systems

    Carburetor Systems To provide for engine operation under various loads and at different engine speeds, each carburetor has six systems: 1. Main metering, 2. Idling, 3. Accelerating, Mixture control, Idle cutoff, and Power enrichment or economizer. Each of these systems ... definite function. It may act alone or with one or more of the others. The main metering system supplies fuel to the engine at all speeds above idling. The fuel discharged by this system is determined by the drop…