T-45A UJPT, E2-C2, ADV, & IUT Eng-02
Engine
NOTE: Overall compression ratio is
approximately 11:1.
c.
through an annular bypass duct
and mixed with turbine exhaust
gases in exhaust mixer
(2) Small portion of bypass air is
tapped from bypass duct and used
to cool exhaust cone
2.
Sg 2, fr 3
a.
Fuel from fuel control system
Combustion
Chamber
N1 Compressor
Internal Gearbox
introduced through 18 fuel spray
N2 Compressor
N2 Turbine
N1 Turbine
nozzles and mixed with N2 compressed
N1 Turbine
Bearing
air in annular combustion chamber
Oil Tank
b.
Fuel/N2 air mixture is ignited by 2, 12
Location
N2 Turbine
Intershaft
N1 Compressor
Bearing
Bearing
Bearing
Front Bearing
HS Gearbox
EngineFuel
Controls Cambox
joule igniters, that fire only during the
BASIC ENGINE DIAGRAM
start cycle, and expands, forcing high-
pressure gases into turbine section
c.
Contains a "wet drain collector" which
is a small sump that collects and
contains residual fuel after engine
shutdown to prevent environmental
3.
Power generation
a.
N2 and N1 turbines extract energy from
gases exiting combustion chamber to
drive their respective compressors
through coaxial shafts
(8-03) Original
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