ENGINE VIDEO Flashcards
4 STAGES OF TURBINE ENGINE
INTAKE
COMPRESSION
POWER
EXHAUST
NOISE DEPENDENT ON EXIT JET VELOCITY
SOMETHING TO DO WITH QUIETER EXHAUST.
DIFFUSER IT _________ VELOCITY BUT ________PRESSURE.
DECREASES VELOCITY
INCREASES PRESSURE
THE HIGHEST GAS PRESSURE IN THE ENGINE IS IN THE ______________
DIFFUSER
PRIMARY AIR FLOW?
USED TO MIX WITH FUEL PRIOR TO THE COMBUSTION SECTION.
SECONDARY AIRFLOW?
COOL DOWN COMBUSTION SECTION AND PARTS
TURBINE
ABSORBS ENERGY FROM THE GAS FLOW AND COVERTS IT TO MECHANICAL SHAFT POWER OR TORGUE
TIT TEMPERATURE IS THE LIMITING FACTOR FOR ENGINES?
1
2
3
- THRUST
- OPERATION
- SERVICE LIFE
EXHAUST
CREATING THRUST BY JET PROPULSION.
ACCESSORY GEAR BOX
PROVIDE SPACE FOR THE MOUNTING OF CONTROLS FOR THE OPERATION OF THE ENGINE.
BASIC ELEMENTS OF THE ACCESSORY SECTION
ACCESSORY GEARBOX
MACHINE MOUNTING PADS FOR THE ENGINE DRIVE ACCESSORIES
GEAR TRAIN HOUSED INSIDE ACCESSORY CASE
THE HIGHEST VELOCITY IN THE JET ENGINE IS IN THE?
EXHAUST SECTION
HIGHEST PRESSURE
IN THE DIFFUSER JUST BEFORE THE COMBUSTION SECTION
HIGHEST TEMPERATURE
TURBINE INLET SECTION
NOTE; THE TURBINE BEARINGS ALSO HAVE SOME OF THE HIGHEST TEMPERATURES.
THREE FACTORS THAT EFFECT THERMAL EFFICIENCIES
1 TURBINE INLET TEMPERATURE
- COMPRESSION RATIO
- COMPRESSOR AND TURBINE EFFICIENCIES
