TYPICAL FUEL SYSTEM GAS TURBINE ENGINE 1 ST

TYPICAL FUEL SYSTEM GAS TURBINE ENGINE

1 ST – WE WILL LOOK AT HYDROMECHANICAL SYSTEMS

MECHANICAL DRIVE FROM ENGINE OIL IN FUEL/OIL LP FUEL PUMP HEAT EXCHANGER OIL OUT WING FUEL HP FUEL PUMP LP FUEL FILTER TANK PUMP OUTPUT CONTROL SIGNAL FUEL CONTROL UNIT MULTI PLUNGER (SWASH-PLATE) PUMP TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE FUEL DISTRIBUTION AND SPRAY NOZZLES BOOSTER PUMP

PUMP INPUT DRIVE LP FUEL IN PUMP IMPELLOR LOW PRESSURE PUMP TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE

HOT OIL IN COLD LP FUEL IN FCOC PRESSURE RELIEF VALVE FUEL COOLED OIL COOLER (FCOC) FUEL TUBES COOLED OIL OUT OIL BAFFLE PLATES FILTER PRESSURE RELIEF VALVE LP FUEL FILTER HOT LP FUEL OUT FILTER PAPER ELEMENT FUEL/OIL HEAT EXCHANGER AND FUEL FILTER TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE

‘SWASH’ PLATE SERVO PISTON SERVO (CONTROL) PRESSURE FUEL PUMPED OUTOUT FUEL MECHANICAL INPUT DRIVE KIDNEY PLATE FUEL DRAWN IN IN FUEL DRAWN OPERATING PISTON KIDNEY PORT MULTI PLUNGER (SWASH-PLATE) PUMP TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE

LE MAX UM M I G AN ‘STEADY-STATE’ FUEL DEMAND AX GAL/HR FUEL LTR/SEC FLOW TE A L W CRUISE FUEL FLOW UM = M P M A C ‘STEADY-STATE’ CRUISE CAMPLATE ANGLE O FL IM P AX M UM UM P IDLE TE UM P PUM IM MIN IDLE = W O FL LA MP A C ENGINE RPM IM MIN GLE N A CRUISE RPM MAX MULTI PLUNGER (SWASH-PLATE) PUMP TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE

NOW – WE WILL LOOK AT ELECTRONICALLY CONTROLLED SYSTEMS

MECHANICAL DRIVE FROM ENGINE OIL IN FUEL/OIL LP FUEL PUMP HEAT EXCHANGER OIL OUT WING FUEL HP FUEL PUMP LP FUEL FILTER TANK FUEL ‘SPILL’ FLOW FADEC – ELECTRONIC SIGNAL FUEL CONTROL UNIT GEAR TYPE PUMP TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE FUEL DISTRIBUTION AND SPRAY NOZZLES BOOSTER PUMP

PUMP FLOW AND RESTRICTION TO FLOW IN CONTROLLER CAUSES PRESSURE TO INCREASE ‘SPUR’ GEARS FLOW Flow OUT Controller GEAR TYPE PUMP TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE

MAX ‘STEADY-STATE’ FUEL DEMAND PUMP OUTPUT GAL/HR FUEL LTR/SEC FLOW W P M U P CRUISE FUEL FLOW O FL SPILL FLOW COMBUSTION FLOW IDLE ENGINE RPM CRUISE RPM MAX GEAR TYPE PUMP TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE

MAX FUEL FLOW W P M U P GAL/HR LTR/SEC O FL SPILL FLOW COMBUSTION FLOW IDLE ENGINE RPM MAX GEAR TYPE PUMP TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE

Any questions?