ENGINE GENERAL TYPE THRUST BYPASS RATIO OVERALL PRESSURE RATIO NUMBER OF COMBUSTION CHAMBERS TYPE OF COMBUSTION CHAMBER COMBUSTOR EXIT TEMPERATURE TYPE OF COMPRESSOR
TYPE OF TURBINE
ENGINE WEIGHT
BARE ENGINE (DRY)
ENGINE WITH QEC (WET)
ENGINE LENGTH BARE ENGINE BARE ENGINE (INCLUDING INLET CONE) ENGINE WITH INLET COWL AND EXHAUST SLEEVE
INSTALLED
ENGINE INLET DIAMETER
FAN TIP DIAMETER
DIRECTION OF ROTOR ROTATION
LUBRICATION SYSTEM OIL SPECIFICATION
OIL SYSTEM CAPACITY (FULLY SERVICED) OIL TANK CAPACITY FUEL SYSTEM FUEL SPECIFICATION
AXIAL-FLOW, GAS TURBINE TURBOFAN56,000 POUNDS
4.8 AT 56,000 POUNDS THRUST
29.7 AT 56,000 POUNDS THRUST ONE ANNULAR 2450`F (1343`C) AT 56,000 POUNDS THRUST TWO SPOOL, 16-STAGE COMPRESSOR, CONSISTING OF A
5-STAGE LOW PRESSURE COMPRESSOR (LPC) AND AN
11-STAGE HIGH PRESSURE COMPRESSOR (HPC) 6-STAGE, SPLIT, HAVING A 2-STAGE HIGH PRESSURE TURBINE (HPT) AND A 4-STAGE LOW PRESSURE TURBINE (LPT)
APPROXIMATELY 9,200 POUNDS (4173 KG) APPROXIMATELY 11,000 POUNDS (4990 KG)
132.7 INCHES (337.1 CM)
153.6 INCHES (390.1 CM)
247.6 INCHES (628.9 CM)
APPROXIMATELY 96.0 INCHES (243.8 CM)
93.6 INCHES (237.7 CM)CLOCKWISE (AFT LOOKING FORWARD)
PWA 521 TYPE II (SB NO. 238; ISSUE SEQUENCE
PW4ENG 79-1)
APPROXIMATELY 40 U.S. QUARTS (38 LITERS)
APPROXIMATELY 34.8 U.S. QUARTS (32.9 LITERS)
PWA 522 (SB NO. 2016; ISSUE SEQUENCE PW4ENG 73-1)
Engine Specifications
Figure 1
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MAIN GEARBOX GROUP
Engine Modules
Figure 2
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
TURBINE VANE
AND BLADE
COOLING AIR
VALVE EEC DATA
COOLING AIR HPT CASE SWITCH POSITION CONTROL CABLE COOLING AIR VALVE TURBINE CASE AIR VALVE ACTUATOR TURBINE CASE COOLING ENTRY PLUG ENGINE CONTROL ELECTRONIC
SHUTOFF VALVE (EEC)
LPT CASE
COOLING AIR TURBINE 2.9 BLEED
SHUTOFF VALVE VANE VALVE SUPPLEMENTAL
AND BLADE CONTROL
COOLING UNIT
AIR VALVE (SCU)
HPC SECONDARY FLOW CONTROL
EXCITER-TO-VALVE
IGNITER PLUG
CABLES FUEL VARIABLE
FILTER
STATOR VANE
ELEMENT
ACTUATOR EGT (TT4.95) LUBRICATION FUEL PUMPTHERMOCOUPLE AND SCAVENGE
EEC FUEL
FUELPROBES OIL PUMP TEMPERATURE DISTRIBUTION
THERMOCOUPLE
VALVE EGT (TT4.95)
IGNITION PROBE
FUEL METERING
THERMOCOUPLE CABLE
EXCITERS UNIT (FMU)
TERMINAL BOX FUEL FILTER DIFFERENTIAL PRESSURE SWITCH
RIGHT SIDE
L-A3031
Engine External Components Location
Figure 3 (Sheet 1)
E99373
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EEC INLET TOTAL
PRESSURE/TEMPERATURE
(PT2/TT2) PROBE
(INLET COWL MOUNTED)
(73-21-03) HPC SECONDARY
FLOW CONTROL
VALVE (75-33-01)
2.9 BLEED VALVE TURBINE VANE FUEL INJECTOR AND
(75-32-03) AND BLADE SUPPORT (24 LOCATIONS)
COOLING AIR (73-11-05)
(TVBCA) VALVE
(75-24-01)
HPT CASE COOLING MANIFOLDSFUEL/OIL OIL TANK (75-24-07) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 发动机 ENGINE 1(4)
