GEnx作为B787的备选发动机，其做了许多革新：风扇直径2.8米（787-8）、复合材料制成的风扇叶片、钛铝合金制成的第6、7级低压涡轮风扇叶片。为了减少燃油消耗，做到了19：2的涵道比，同时也有助于降低噪音，整流罩导向叶片有助于减少了二次流，双环预混旋流(TAPS)燃烧室减少对环境的污染，提升空气流量。降低维修成本，提高发动机的使用寿命，采用更有效的降低发动机内部温度的冷却技术。排出在低压压缩机和高压压缩机中杂物的保护装置。本节课主要讲解航线维护中接触到的发动机部件。
1Inlet Cowl
2EngineAnti-Ice Exhaust
3Fan Cowl PowerDoor Opening Switches (2)
4Fan Cowl (2)
5AmbientPressure Sensing Port (2)
6Thrust Reverser (2)
7Turbine Exhaust Nozzle
8Turbine Exhaust Centerbody
1 Inlet Cowl
2Fan CowlPower Door Opening Switches (2)
3Fan Cowl(2)
4AmbientPressure Sensing Port (2)
5Oil TankAccess Panel
6ThrustReverser (2)
7TurbineExhaust Nozzle
为了便于学习，分成四个部分进行讲解。
PART 1
1FanSpinner
2Fan Blade(18)
3T12 Sensor
4 Inlet Cowl
1 Fan Spinner
2FanAbradable Surface
3 BalanceBolt (36)
4 Fan Spinner Support Ring
5 Fan Blade Platform (18)
6 Booster Stage 1 Vane Assembly
7 Fan Blade (18)
8 Outlet Guide Vanes (48)
1 Fan Cowl (2)
2 Thrust Reverser (2)
3 Inlet Cowl
4 Ambient Pressure Sense Line (2)
5 Fan Cowl Hold Open Rods (4)
6ThrustReverser Actuator (2)
7Fan CowlActuator (2)
8 Thrust Reverser Hold Open Rod (2)
9Oil Tank
PART 2
1 Inlet Cowl
2ForwardFan Case
3Fan Cowl(2)
4 Thrust Reverser (2)
5Ambient PressureSensing Line (2)
6 Fan Cowl Actuator (2)
7ThrustReverser Actuator (2)
8EEC/FADEC (Electronic Engine Control/FullAuthority Digital Engine Control)
9Fan CowlHold Open Rods (4)
10ThrustReverser Hold Open Rod (2)
11EMU(Engine Monitoring Unit)
1Thrust Reverser (2)
2Fan Cowl (2)
3 Thrust Reverser Forward Tension Latch Handle
4 Thrust Reverser Actuator (6)
1 Fan Cowl Support Beam
2 T12 Sensor Connectors
3ForwardFan Case
4EngineAnti-Ice Duct
1 Inlet Cowl
2 Thrust Reverser Test Enable Switch (TES)
3ThrustReverser Power Door Opening Switches (2)
1 Engine Anti-Ice Valve
2ForwardFan Case
3AftFan Case
4 Aircraft Interface Harnesses
5Fan CaseOverheat Detector
6 Fan Cowl Support Beam
7 Bootstrap Bracket Mounts
1 EMU (Engine Monitoring Unit)
2Aft FanCase
1ElectronicEngine Control (EEC)
2EECPressure Transducer Panel
3EngineRating Plug
4 PS25 air pressure Input
5PS3air pressure input
6P0air pressure Input
1 Air Bleed Deflector Panel (10)
2OutletGuide Vanes (48)
3Blank OffPanel (7)
1EngineAnti-Ice Duct
2 Fire Extinguishing Tube
3 Core Junction Box
4 Core Compartment Cooling Valve
1EngineIdentification Nameplate
2 Fan Hub Frame
3VariableBleed Valve Duct (10)
1 VFSG Air/Oil Heat Exchanger (2)
2 Outlet Guide Vanes (48)
1 Debris Monitoring Signal Conditioner
2Oil TankVent Line
3 Debris Monitoring Sensor
4 Scavenge Oil Return Line
5 Debris Monitoring System Air/Oil Separator
6OilLevel/Temperature Sensor
7Oil Tank
8 Oil Tank Filling Cap
9Oil TankInsulation Blanket
1 Oil Tank
2 Scavenge Oil Return Line
3OilTank Supply Line
4EngineAir Cooled Oil Cooler Tubes
5 Oil Tank Insulation Blanket
6 Aft Fan Case
7ThrustReverser Actuator (2)
8Fan CowlHold Open Rod (4)
9OilSupply Temperature Sensor
10EngineOil Supply and Scavenge Tubes
1Aft FanCase
2FanBooster Acoustic Panel (6)
3Air BleedDeflector Panel (10)
4OutletGuide Vanes (48)
5Fan OutletGuide Vane Fairings (48)
6 Fan Stator Case Acoustical Panel (8)
7Blank-OffPanel (7)
1PS25 tube
2 Fan Hub Frame
3 Variable Bleed Valve Duct (10)
4 A Sump Oil Supply Line
1VFSGAir/Oil Heat Exchanger (2)
2Engine AirCooled Oil Cooler
3 Outlet Guide Vanes (48)
PART 3
1 Bifurcation Latch System Lower Rod
2BifurcationLatch System Lower Receiver
3 Bifurcation Latch System Handle
1 Configuration Box
2 Ignition System Cooling Duct
3 Variable Bleed Valve Actuator (2)
1Number 1Bearing Accelerometer Harness
2 T25 Sensor
3Fan HubFrame
1VariableBleed Valve Duct (10)
2 T25 Sensor
3N1 SpeedSensor
1PMA(Permanent Magnet Alternator)
2 Variable Stator Vane Actuator (2)
3Lubeand Scavenge Pump
4ScavengeOil Inlet Screens (5)
5Oil Filter
6 Oil Filter Drain Plug 4
7 Oil Filter Differential Pressure Sensor
8 Oil Supply Differential Pressure Sensor(Hidden)
1 Engine Anti-Ice Duct
2 Core Compartment Cooling Valve
3 Core Junction Box
4 VFSG Power Feeder Cables
5 Pressure Regulating and Shut Off Valve
1 Core Compartment Cooling Valve
2High Pressure Turbine Active Clearance Control(HPTACC) Valve
3Low Pressure Turbine Active Clearance Control (LPTACC)Valve
4 Ignition System Cooling Duct
1High Pressure Turbine Active Clearance Control(HPTACC) Valve
2ThrustLink (2)
3HPTACCValve Lock Out Pin
4HPTACCValve Position Indicator
5 HPTACC Valve Feedback
6HPTACCValve Fuel Lines
7HPTACCValve Lock Out Hole
1VariableFrequency Starter Generator (VFSG)
2IgnitionExciter Heatshield
3 VFSG Fuel/Oil Heat Exchanger
4VFSGOil Tubes 5
5VFSGOil Out Temperature Sensors (2)
6 Sump Eductor Valve
1 Fuel Nozzle (22)
2Igniter(2)
1Low Pressure Turbine Active Clearance ControlValve
2 Ignition Exciter Heatshield
3IgnitionSystem Cooling Duct
4LowPressure Turbine Active Clearance Control Duct
5EGTHarnesses (2)
6 Turbine Center Frame Accelerometer Harness
1 Turbine Center Frame
2LPT ActiveClearance Control Duct
3 Sump Eductor Air Tube
4LPT ActiveClearance Control Manifold
5 HPT Active Clearance Control Shroud
1ThrustLink (2)
2B SumpVent Line
34th StageAir Line (4)
4EGT Probe(8)
5 Fire Detector
1 Transient Bleed Valve Diffuser
24th StageAir Line (4)
3 Main Fuel Supply Hose
4TransientBleed Valve (TBV)
5ActuatorFuel Lines
67th StageAir Line (4)
7 Core Compartment Temperature Sensor
8 PS3 Sense Line
9 T3 Sensor
1ForwardLower Fire Detector
2 VFSG Pressure Service Lines
3LowerBifurcation Assembly
4Drain Mast
5 VFSG Oil In Temperature Sensors (2)
6VFSG OilDrain Plugs (4)
7Engine OilDrain Port (4)
1VariableStator Vane (VSV) Actuator (2)
2 Variable Stator Vane (VSV) Actuating Shaft (2)
3 Thrust Link (2)
1Flow SplitValve
2Fuel FlowMeter
3FuelMetering Unit
4 Main Fuel/Oil Heat Exchanger
5 Engine Driven Hydraulic Pump
6AccessoryGear Box (AGB)
7FuelFilter
8 Variable Frequency Starter Generator (2)
1AccessoryGear Box (AGB)
2 N2 Speed Sensor
3 Core Engine Hand Cranking Pad
1Main FuelPump Strainer
2 Main Fuel Supply Hose
3Main FuelPump
4Fuel PumpDifferential Pressure Sensor
5FuelFilter
6 Fuel Filter Differential Pressure Sensor
7FuelFilter Bowl Lock Tab
8 Fuel Filter Drain Plug
9 Main Fuel Pump Drain Plugs
1 Thrust Link (2)
2 Core Junction Box
3EngineAnti-Ice Duct
4 Main Fuel Supply Hose
5EngineDriven Hydraulic Pump Lines
6TransientBleed Valve
1 Engine Anti-Ice Duct
2 Booster Anti-Ice Valve
3PressureRegulating and Shut-Off Valve (PRSOV
4 Controller Air Cooler
5 PRSOV Controller
6 Booster Anti-Ice Pressure Sensors (2)
7 Core Junction Box
1 Transient Bleed Valve Diffuser
2 Fire Detector
3LPT ActiveClearance Control Air Shroud (6)
4 EGT Probe (8)
5 4th Stage Air Line (4)
6 7th Stage Air Line (4)
7 Main Fuel Supply Hose
8B & CSump Oil Supply Line
1 4th Stage Air Line (4)
2TransientBleed Valve (TBV)
3TransientBleed Valve Lock Out Pin
4 Transient Bleed Valve Position Indicator
5TransientBleed Valve Feedback
1 Fuel Metering Unit
2 Fuel Flow Meter
3Flow SplitValve
4 Main Fuel/Oil Heat Exchanger
5 Fuel Manifold Pressure Sensor
6FuelManifold Temperature Sensor
7 Main Fuel Pump
8 Accessory Gear Box (AGB
1 Fuel Metering Unit
2 Main Fuel Supply Hose
3Main FuelPump
4 Fuel Filter
5VariableFrequency Starter Generator (VFSG) (2)
6 Combustor Borescope Plug Access Panel
1 Turbine Center Frame
2HPT ActiveClearance Control Shroud (8)
3 LPT Active Clearance Control Air Manifold
44th StageAir Line (4)
5AGB Heatshield
67th StageAir Line (4)
7B & CSump Oil Supply Line
8 EGT Probe (8)
9 C Sump Oil Scavenge Line
PART4
1 Thrust Link (2)
2 4th Stage Air Line (4)
3 7th Stage Air Line (4)
4Aft EngineMount
5TurbineCenter Frame Accelerometer
6EGT(Exhaust Gas Temperature ) Probe (8)
7 LPT Active Clearance Control Shroud
8 B Sump Vent Line
1 LPT Active Clearance Control Shroud
2 Low Pressure Turbine (LPT) Case
3 B Sump Cavity Drain Lines
4EGT(Exhaust Gas Temperature) Probe (8)
1 Thrust Reverser Deflection Limiter Strap (2)
2 Thrust Link (2)
3 Turbine Rear Frame
4LPT ActiveClearance Control Shroud (6)
5 Aft Engine Mount
6TurbineExhaust Nozzle
1 Turbine Rear Frame
2 Turbine Exhaust Nozzle
3C SumpCavity Drain
4C Sump OilScavenge Line
5 Aft Drain Mast
6C Sump OilSupply Line
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