PW4000航线维护PW4000 LINE & BASE MAINTENANCEPW4000 MAINTENANCE

afanti · 发表于 2012-9-3 18:06:18

PW4000航线维护,PDF版，供大家参考，请尊重版权！
P&W CUSTOMER TRAININGP&TRAINING
PW4000 LINE & BASE MAINTENANCEPW4000 MAINTENANCE

T1 PW4000 Engine Only
For B747
B747-400 (PW4000)
and B767
B767-200/300 (PW4000 PW4000)
APRIL 2008

SECTION 3
ENGINE CONSTRUCTION/TIME LIMITS
WHEN YOU COMPLETE THIS LESSON, YOU WILL BE ABLE TO:
1.LIST THE LOCATIONS WHERE SIGNS OF BEARING COMPARTMENT OIL LEAKAGE CAN BE FOUND.
2.SHOW THE LOCATION AND NUMBER OF EACH STATION THAT IS USED FOR ENGINE MONITORING.
3.IDENTIFY THE SOURCES USED FOR SECONDARY AIR FLOW.
4.IDENTIFY THE COMPONENTS ATTACHED TO THE MAIN GEARBOX.
Note: Line replaceable units are marked throughout this chapter with this symbol:

ENGINE SPECIFICATIONS
GASPATH CONFIGURATION
Purpose:
The gaspath supplies the force to move the aircraft. It also provides air heated and pressurized for aircraft functions.
Location:
Six different areas configure the gaspath:
•Low Pressure Compressor (LPC) – 5 stages
•High Pressure Compressor (HPC) – 11 stages
•Diffuser and combustor
•High Pressure Turbine (HPT) – 2 stages
•Low Pressure Turbine (LPT) – 4 stages
•Turbine Exhaust Case (TEC)
Description and Operation:
The engine has an axial-flow, high-bypass ratio turbofan and a mechanically independent, dual-spool design. The dual spool includes:
•A low spool composed of the Low Pressure Compressor and Low Pressure Turbine
•A high spool composed of the High Pressure Compressor and High Pressure Turbine.