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TYPICAL FUEL SYSTEM GAS TURBINE ENGINE. 1 ST – WE WILL LOOK AT HYDROMECHANICAL SYSTEMS.

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Presentation on theme: "TYPICAL FUEL SYSTEM GAS TURBINE ENGINE. 1 ST – WE WILL LOOK AT HYDROMECHANICAL SYSTEMS."— Presentation transcript:

1 TYPICAL FUEL SYSTEM GAS TURBINE ENGINE

2 1 ST – WE WILL LOOK AT HYDROMECHANICAL SYSTEMS

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

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

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

6 TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE FUEL DRAWN IN FUEL PUMPED OUT MULTI PLUNGER (SWASH-PLATE) PUMP MECHANICAL INPUT DRIVE SWASH PLATESERVO (CONTROL) PRESSURE SERVO PISTON OPERATING PISTON FUEL DRAWN INFUEL PUMPED OUT KIDNEY PLATE KIDNEY PORT

7 TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE STEADY-STATE FUEL DEMAND ENGINE RPM IDLEMAX FUEL FLOW GAL/HR LTR/SEC IDLE MAX PUMP MAXIMUM FLOW = CAMPLATE MAXIMUM ANGLE PUMP MINIMUM FLOW = CAMPLATE MINIMUM ANGLE STEADY-STATE CRUISE CAMPLATE ANGLE CRUISE RPM CRUISE FUEL FLOW MULTI PLUNGER (SWASH-PLATE) PUMP

8 NOW – WE WILL LOOK AT ELECTRONICALLY CONTROLLED SYSTEMS

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

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

11 STEADY-STATE FUEL DEMAND ENGINE RPM IDLEMAX FUEL FLOW GAL/HR LTR/SEC IDLE MAX PUMP FLOW GEAR TYPE PUMP CRUISE RPM CRUISE FUEL FLOW SPILL FLOW COMBUSTION FLOW PUMP OUTPUT

12 COMBUSTION FLOW SPILL FLOW TYPICAL FUEL SYSTEM - GAS TURBINE ENGINE GEAR TYPE PUMP ENGINE RPM IDLEMAX FUEL FLOW GAL/HR LTR/SEC IDLE MAX PUMP FLOW

13 Any questions?


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