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TYPICAL FUEL SYSTEM. GAS TURBINE ENGINE. 1 ST – WE WILL LOOK AT HYDROMECHANICAL SYSTEMS. MECHANICAL DRIVE FROM ENGINE. OIL IN. BOOSTER PUMP. OIL OUT. FUEL DISTRIBUTION AND SPRAY NOZZLES. PUMP OUTPUT CONTROL SIGNAL. FUEL/OIL HEAT EXCHANGER. LP FUEL PUMP. HP FUEL PUMP. WING FUEL
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TYPICAL FUEL SYSTEM GAS TURBINE ENGINE
MECHANICAL DRIVE FROM ENGINE OIL IN BOOSTER PUMP OIL OUT FUEL DISTRIBUTION AND SPRAY NOZZLES PUMP OUTPUT CONTROL SIGNAL FUEL/OIL HEAT EXCHANGER LP FUEL PUMP HP FUEL PUMP WING FUEL TANK LP FUEL FILTER FUEL CONTROL UNIT MULTI PLUNGER (SWASH-PLATE) PUMP
PUMP INPUT DRIVE LP FUEL IN PUMP IMPELLOR LOW PRESSURE PUMP
HOT OIL IN FCOC PRESSURE RELIEF VALVE COOLED OIL OUT FILTER PRESSURE RELIEF VALVE HOT LP FUEL OUT COLD LP FUEL IN FUEL COOLED OIL COOLER (FCOC) FUEL TUBES OIL BAFFLE PLATES LP FUEL FILTER FILTER PAPER ELEMENT FUEL/OIL HEAT EXCHANGER AND FUEL FILTER
SERVO PISTON ‘SWASH’ PLATE SERVO (CONTROL) PRESSURE FUEL PUMPED OUT MECHANICAL INPUT DRIVE FUEL PUMPED OUT KIDNEY PLATE FUEL DRAWN IN OPERATINGPISTON KIDNEY PORT FUEL DRAWN IN MULTI PLUNGER (SWASH-PLATE) PUMP
MAX ‘STEADY-STATE’ FUEL DEMAND GAL/HR LTR/SEC FUEL FLOW PUMP MAXIMUM FLOW = CAMPLATE MAXIMUM ANGLE ‘STEADY-STATE’ CRUISE CAMPLATE ANGLE PUMP MINIMUM FLOW = CAMPLATE MINIMUM ANGLE IDLE ENGINE RPM IDLE MAX CRUISE FUEL FLOW CRUISE RPM MULTI PLUNGER (SWASH-PLATE) PUMP
MECHANICAL DRIVE FROM ENGINE OIL IN BOOSTER PUMP OIL OUT FUEL DISTRIBUTION AND SPRAY NOZZLES FUEL ‘SPILL’ FLOW FADEC – ELECTRONIC SIGNAL FUEL/OIL HEAT EXCHANGER LP FUEL PUMP HP FUEL PUMP WING FUEL TANK LP FUEL FILTER FUEL CONTROL UNIT GEAR TYPE PUMP
PUMP FLOW AND RESTRICTION TO FLOW IN CONTROLLER CAUSES PRESSURE TO INCREASE ‘SPUR’ GEARS FLOW OUT Flow Controller GEAR TYPE PUMP
MAX PUMP OUTPUT ‘STEADY-STATE’ FUEL DEMAND GAL/HR LTR/SEC FUEL FLOW SPILL FLOW PUMP FLOW COMBUSTION FLOW IDLE ENGINE RPM IDLE MAX CRUISE FUEL FLOW CRUISE RPM GEAR TYPE PUMP
MAX FUEL FLOW PUMP FLOW GAL/HR LTR/SEC SPILL FLOW COMBUSTION FLOW IDLE ENGINE RPM IDLE MAX GEAR TYPE PUMP