The EJ200 Project
EUROJET Turbo GmbH (EUROJET), is the management
company responsible for the EJ200 engine system,
installed in the Eurofighter Typhoon aircraft, and is
the point of contact for all EJ200 project activities. A
leading military aerospace engine consortium in Europe,
EUROJET’s shareholders comprise Avio (Italy), ITP (Spain),
MTU Aero Engines (Germany) and Rolls-Royce (UK). The
company’s responsibilities include the management of
development, support and export of the new generation
EJ200 powerplant and it operates out of its headquarters
in Hallbergmoos, Germany (near Munich airport).
EUROJET, together with Eurofighter Jagdflugzeug
GmbH (Eurofighter), which is responsible for managing
the development and production of the complete
Eurofighter Typhoon weapon system, are the industrial
contractual partners
Contents
Company Profile » 3
Programme History » 5
Project Organisation » 7
Technical Data » 9
Operational Benefits » 10
Technological Features » 12
EJ200—Presence and Future » 24
2 3
Company profile
of the four partner nations (Italy,
Germany, Spain and the UK).
These four nations established
NETMA (the NATO Eurofighter
and Tornado Management
Agency) under the NATO charter
as a single interface for the core
customers.
The EJ200 programme, together
with the Eurofighter Typhoon
programme, represents about
100,000 direct and indirect jobs
across Europe involving over
400 companies. This constitutes
Europe’s largest industrial
programme representing a
direct commitment by partner
nations and companies for
investment in sustainable
technology and furthering of
the industrial potential of the
European aerospace industry.
54
programme History
pa r t n e r s H i p H e r i tag e
The origin of the EUROJET partnership lies
in the collaboration of three European
companies, Rolls-Royce, MTU Aero Engines
and Avio, in the development and production
of the RB199 engine for the Tornado aircraft.
The success of this earlier partnership, with
a total fleet of more than 950 aircraft and
approximately 6 million engine flying hours
achieved, paved the way for future European
collaboration programmes.
m i l e s to n e s2008 20082007200720042003199819951986
Del
iver
y of
500
th E
ngin
e>
100
,000
Eng
ine
Flyi
ng H
ours
Expo
rt C
ontr
act w
ith th
e Ki
ngdo
m o
f Sau
di A
rabi
a
Begi
n of
Tra
nche
II E
J200
Eng
ines
Del
iver
y
Sign
atur
e of
Tra
nche
II P
rodu
ctio
n Co
ntra
ct
Sign
atur
e of
Pro
duct
ion
Cont
ract
Firs
t Eur
ofigh
ter T
ypho
on F
light
with
EJ2
00 E
ngin
es
Form
atio
n of
EU
ROJE
T Tu
rbo
Gm
bH
Expo
rt C
ontr
act w
ith A
ustr
ia
Company profile
Like the Eurofighter Typhoon, the EJ200 engine is
assembled in four different assembly lines, located
in each of the partner nations. The workshare reflects
the number of aircraft, and the associated number of
engines, ordered by the respective industrial partner.
The distribution, as indicated below, makes best use of
each partner company’s expertise and technology:
Low pressure (LP) turbine, reheat
system, gearbox and air/oil system
Exhaust nozzle, jet pipe, exhaust
diffuser, by-pass duct and external
dressings
Low pressure (LP) and high
pressure (HP) compressors and
DECMU (Digital Engine Control and
Monitoring Unit)
Combustion system, high
pressure (HP) turbine and engine
health monitoring system (EHMS)
76
e J 200 p r o g r a m m e
The EJ200 programme began in 1983 with what was
then called the European Fighter Aircraft (later to
become the Eurofighter Typhoon) project. In 1988, the
governments of Italy, Germany, Spain and the United
Kingdom authorized formal development contracts for
the aircraft’s systems, including the EJ200 engines.
proJeCt organisationprogramme History
Madrid
Bristol
Brindisi
Torino
Munich
Bilbao
33%
33%
21%
13%
Type Twin Spool Turbofan
with afterburner
Launch application Eurofighter Typhoon
(2 EJ200 engines)
Thrust 90 kN (20,000 lbf )
with reheat
60 kN (13,500 lbf )
without reheat
Bypass ratio 0.4 : 1
Pressure ratio 26 : 1
Specific fuel consumption 47–49 g/kNs
with reheat
21–23 g/kNs
without reheat
Airflow 75–77 kg/s
Compressor stages 3 LP, 5 HP
Turbine stages 1 HP, 1 LP
Combustion system Annular Airspray
Weight ca. 1,000 kg
Length 4 m
e U r o J e t i n d U s t r i e s
8 9
proJeCt organisation teCHniCal data
Next generation »
technology
High performance »
High operational »
availability
Power for multi-role »
capability
High thrust-to-weight »
ratio
High reliability levels »
Low cost of ownership »
r e l i a b i l i t y
Low engine removal rate at < 1/1000 engine flying »
hours (EFH)
Mean Time Between Defects Core Engine ( » MTBD) >
1,000 EFH
m a i n ta i n a b i l i t y
Modular construction – quick engine recovery »
Advanced on-condition maintenance »
Easy access to LRI’s »
Engine replacement time < 45 minutes »
Extensive boroscope access »
s U p p o r ta b i l i t y
Use of common hand tools »
Low level of training required »
Low direct maintenance man-hours per engine flying »
hour
Engines are interchangeable »
e n g i n e H e a lt H m o n i to r i n g
Fully integrated with Digital Control System »
Continuous engine health monitoring and event »
reporting
1110
operational benefitsoperational benefits
LOw PrEssurE COmPrEssOr
HigH PrEssurE COmPrEssOr
DECmu
gEarBOx anD OiL sysTEm
COmBusTiOn sysTEm
rEHEaT sysTEm
VariaBLE ExHausT nOzzLE
LOw PrEssurE TurBinE
HigH PrEssurE TurBinE
12 13
teCHnologiCal featUres
lo w p r e s s U r e Co m p r e s s o r
The LP compressor is a 3-stage, FOD-tolerant axial
flow unit with a very high pressure ratio (4.2 : 1). It is an
all-blisk (integrally bladed disc) design featuring wide
chord aerofoils attached by advanced linear friction
welding techniques and operates without the need for
inlet guide vanes.
H i g H p r e s s U r e Co m p r e s s o r
The axial flow HP compressor consists of 5 stages, deliv-
ering a pressure increase of 6.2 : 1 [overall the EJ200
compression system delivers 26 : 1 in only 8 stages]
with a high surge margin and only 1 set of variable inlet
guide vanes.
14 15
teCHnologiCal featUres teCHnologiCal featUres
H i g H p r e s s U r e t U r b i n e
The HP turbine is a single-stage, shroudless design using
3-D, single-crystal, nickel alloy aerofoils with advanced
internal and film cooling, ensuring long life, low blade
numbers and high levels of performance. Tip clearance
control is also employed to maintain efficiency. Turbine
blade temperature is measured using an optical
pyrometer, which is linked to the digital engine control
and monitoring unit (DECMU). Plasma-sprayed thermal
barrier coatings are used on liners and vanes.
Co m b U s t i o n
s ys t e m
The annular combustor
is a very compact
design employing latest
technology features
to achieve extremely
demanding requirements in
terms of emissions (zero visible
smoke), combustion stability / handling, efficiency and
life. Features include advanced air spray fuel injectors
with preferential fuelling, film cooling & thermal barrier
coating and fuel boroscope access.
16 17
teCHnologiCal featUres teCHnologiCal featUres
r e H e at s ys t e m
The advanced-staged afterburner system uses radial
burners and primary vaporisers in the hot stream
and fuel injection in the cold stream to give very high
combustion efficiency over the operational range. The
three burners are independently supplied with fuel,
giving continuous and smooth modulation between
minimum and maximum reheat. The design achieves
smooth selection, low smoke and maximum thrust
boost whilst minimizing instabilities.
lo w p r e s s U r e t U r b i n e
The LP turbine is a single-stage shrouded design
chosen for its high efficiency and performance
retention characteristics. Single-crystal, cooled
turbine blades are used in the turbine rotor
and thermal barrier coatings are used on static
components (vanes). As with the HP turbine,
this unit represents a step change from previous
designs.
18 19
teCHnologiCal featUres teCHnologiCal featUres
b r U s H s e a l s
Extensive use of brush seals is made throughout the
engine; these have advantages in terms of reduced
leakage, mass, lower heat transfer to oil and improved
supportability.
g e a r b ox a n d o i l s ys t e m
The EJ200 features an external wrap-around gearbox,
positioned on the underside of the engine for acces-
sibility, and a fully aerobatic, self-contained oil system
with automatic oil debris monitoring. The oil tank is
mounted on the front left side of the gearbox and
contains a rotating basket which generates an artificial
gravitational force thus ensuring a supply of oil to the
pump even under the most extreme flight conditions.
20 21
teCHnologiCal featUres teCHnologiCal featUres
d e C m U
The full authority Digital Engine Control and Monitoring
Unit is engine-mounted for accessibility and is a
twin-lane, fault-tolerant system linked to the aircraft
flight control system. It constantly monitors the
functional status of the engine and allows precise,
responsive and safe control at all times. The engine
health monitoring system includes features such as
individual component life usage, continuous vibration
and oil debris monitoring and event reporting. The
whole engine is designed for on-condition mainte-
nance and low life-cycle costs, which is supported by
this technology.
Va r i a b l e
e x H aU s t n o z z l e
The EJ200 features a con ver-
gent-divergent variable exhaust
nozzle, optimized for multi-
mission, subsonic and supersonic
performance. The nozzle position
is controlled by the DECMU and
adjusted (modu lated) constantly
throughout the dry and wet
range of operation.
2322
teCHnologiCal featUres teCHnologiCal featUres
2524
In offering a unique product that applies world-leading
technology to the customers’ needs, EUROJET is able to
deliver the very best in engine production. The EJ200
engine has an unprecedented performance record
combined with multi-role capability, highest availability
and low life-cycle costs.
eJ200—presenCe and fUtUre
More than 1,500 EJ200 engines, employed in the
Eurofighter Typhoon, are currently on contract to six
nations: in addition to the four partner nations, the
first export customers are Austria and the Kingdom of
Saudi Arabia. Eurofighter Typhoon is the world’s best-
selling, new-generation, multi-role combat aircraft with
707 aircraft currently under contract. The outstanding
capabilities of the Eurofighter Typhoon aircraft and its
driving force, the EJ200, have raised the interest of many
other nations. Together with its partners, EUROJET is
actively supporting further export campaigns.
e J 200 – t H e e n g i n e o f C H o i C e f o r
s i n g l e o r t w i n a p p l i C at i o n s .
EJ200 – The Power Behind Eurofighter Typhoon
www.eurojet.eu
EJ200 – BEnCHmarK FOr ExCELLEnCE
eUroJet turbo gmbHLilienthalstraße 2 b 85399 Hallbergmoos germany
Phone: +49 8 11 55 05–0Fax: +49 8 11 55 05 –139
E-mail: [email protected]: www.eurojet.eu