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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 2: Engine Fuel & Fuel Metering Systems › Fuel Control Maintenance › Fuel System Operation

    Water Injection System Fuel Control Maintenance Fuel System Operation The fuel pump receives fuel from the airplane fuel system. The low pressure boost stage of the pump pressurizes the fuel and sends it to the fuel/oil cooler (FOC). The fuel ... flows from the FOC, through the fuel pump filter element, and then to the high pressure main stage of the pump. The high pressure main stage increases the fuel pressure and sends it to the fuel metering unit…

  • Chapter 2: Engine Fuel & Fuel Metering Systems › Fuel-Injection Systems › Fuel-Injection Pump

    Continental/TCM Fuel-Injection System The Continental fuel-injection system injects fuel into the intake valve port in each cylinder head. [Figure 2-39] The system consists of a fuel injector pump, a control unit, a fuel manifold, and a fuel ... discharge nozzle. It is a continuous-flow type, which controls fuel flow to match engine airflow. The continuous-flow system permits the use of a rotary vane pump which does not require timing to the engine. Figure 2-38. Fuel…