The EJ200 Project 1
COMPANY PROFILE
CO N T E N T S
EUROJET Turbo GmbH (EUROJET) is the management
company responsible for the EJ200 engine system,
» Company Profile
3
» Programme History
5
» Project Organisation
7
» Technical Data
9
» Operational Benefits
10
» Technological Features
12
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
» Modular Construction
24
Eurofighter Typhoon weapon system, are the industrial contractual partners of the four
» EJ200—Presence and Future
2
26
3
COMPANY PROFILE
PROGRAMME HISTORY
partner nations (Italy, Germany,
PA R T N E R S H I P H E R I TAG E
Spain and the UK). These four
The origin of the EUROJET partnership lies in the collab-
nations established NETMA
oration of three European companies, Rolls-Royce,
(the NATO Eurofighter and
MTU Aero Engines and Avio, in the development and
Tornado Management Agency)
production of the RB199 engine for the Tornado aircraft.
under the NATO charter as a
The success of this earlier partnership, with a total fleet
single interface for the core
of more than 950 aircraft and approximately 6 million
customers.
engine flying hours achieved, paved the way for future
The EJ200 programme, together
European collaboration programmes.
with the Eurofighter Typhoon programme, represents about M I L E S TO N E S 1986 1995 1998 2001 2003 2007 2009 2011 2011
ingdo
-Wing rs On Engin ,000 >250
ery o
e Flyin
Engin
e
g Hou
rs
Flyin
the K
,150 ve s 1
1 st En
gine
achie
t with ntrac
t with ntrac
rt Co
rt Co Expo
Expo
g Hou
m of
Engin c tion Austr
ia
Produ
E J200
f 750 th
e
Saud
i Arab
ia
gines 00 En trac t n Co n
uc tio
f First
H Gmb
ght w ture o
f EUR tion o
the industrial potential of the
Eurofi
technology and furthering of
OJE T
sustainable
First
in
Form a
investment
Turbo
nations and companies for
f Prod
direct commitment by partner
ith E J2
a
Signa
representing
on Fli
programme
industrial
Typh o
largest
ghter
Europe’s
Deliv
400 companies. This constitutes
ery o
across Europe involving over
Deliv
100,000 direct and indirect jobs
European aerospace industry.
4
5
PROGRAMME HISTORY
PROJECT ORGANISATION
E J 200 P R O G R A M M E
Like the Eurofighter Typhoon, the EJ200 engine is
The EJ200 programme began in 1983 with what was
assembled in four different assembly lines, located
then called the European Fighter Aircraft (later to
in each of the partner nations. The workshare reflects
become the Eurofighter Typhoon) project. In 1988, the
the number of aircraft, and the associated number of
governments of Italy, Germany, Spain and the United
engines, ordered by the respective industrial partner.
Kingdom authorized formal development contracts for
The distribution, as indicated below, makes best use of
the aircraft’s systems, including the EJ200 engines.
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) 6
7
PROJECT ORGANISATION
TECHNICAL DATA
EUROJET INDUSTRIES
Type
Twin Spool Turbofan with Afterburner
Application
Eurofighter Typhoon
Thrust
90 kN (20,000 lbf ) with reheat 60 kN (13,500 lbf ) without reheat
Bypass ratio
0.4 : 1
Fan pressure ratio
4.2 : 1
Overall pressure ratio
26 : 1
Specific fuel consumption
33%
BRISTOL
21– 23 g/kNs without reheat
33% MUNICH
TORINO BILBAO
21%
MADRID
47– 49 g/kNs with 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
ca. 4 m
13% 8
9
OPERATIONAL BENEFITS
OPERATIONAL BENEFITS
RELIABILITY » Low engine removal rate at < 1/1,000 engine flying hours (EFH) » Mean Time Between Defects Core Engine » 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
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 » Non-handed engines 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
10
11
TECHNOLOGICAL FEATURES
LOW PRESSURE COMPRESSOR HIGH PRESSURE COMPRESSOR
REHEAT SYSTEM
COMBUSTION SYSTEM
VARIABLE EXHAUST NOZZLE
LOW PRESSURE TURBINE
HIGH PRESSURE TURBINE GEARBOX AND OIL SYSTEM DECMU (DIGITAL ENGINE CONTROL AND MONITORING UNIT)
12
13
TECHNOLOGICAL FEATURES
TECHNOLOGICAL FEATURES
LO W P R E S S U R E CO M P R E S S O R
H I G H 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
The axial flow HP compressor consists of 5 stages, deliv-
flow unit with a very high pressure ratio (4.2 : 1). It is an
ering a pressure increase of 6.2 : 1 [overall the EJ200
all-blisk (integrally bladed disc) design featuring wide
compression system delivers 26 : 1 in only 8 stages]
chord aerofoils attached by advanced linear friction
with a high surge margin and only 1 set of variable
welding techniques and operates without the need for
inlet guide vanes.
inlet guide vanes.
14
15
TECHNOLOGICAL FEATURES
TECHNOLOGICAL FEATURES
CO M B U S T I O N S YS T E M
HIGH PRESSURE TURBINE
The annular combustor is a very
The HP turbine is a single-stage, shroudless design
compact design employing
using 3-D, single-crystal, nickel alloy aerofoils with
latest technology features
advanced internal and film cooling, ensuring long life,
to
extremely
low blade numbers and high levels of performance.
demanding requirements
Tip clearance control is also employed to maintain
in terms of emissions (zero
efficiency. Turbine blade temperature is measured
visible smoke), combustion
using an optical pyrometer, which is linked to the
stability / handling,
digital engine control and monitoring unit (DECMU).
and
achieve
life.
efficiency
Features
include
advanced air spray fuel injectors
Plasma-sprayed thermal barrier coatings are used on liners and vanes.
with preferential fuelling, film cooling & thermal barrier coating and full boroscope access.
16
17
TECHNOLOGICAL FEATURES
TECHNOLOGICAL FEATURES
LO W P R E S S U R E T U R B I N E
R E H E AT S YS T E M
The LP turbine is a single-stage shrouded design
The advanced-staged afterburner system uses radial
chosen for its high efficiency and performance
burners and primary vaporisers in the hot stream and
retention characteristics. Single-crystal, cooled turbine
fuel injection in the cold stream to give very high
blades are used in the turbine rotor and thermal barrier
combustion efficiency over the operational range. The
coatings are used on static components (vanes). As
three burners are independently supplied with fuel,
with the HP turbine, this unit represents a step change
giving continuous and smooth modulation between
from previous designs.
minimum and maximum reheat. The design achieves smooth selection, low smoke and maximum thrust boost whilst avoiding instabilities.
18
19
TECHNOLOGICAL FEATURES
TECHNOLOGICAL FEATURES
G E A R B OX A N D O I L S YS T E M
BRUSH SEALS
The EJ200 features an external wrap-around gearbox,
Extensive use of brush seals is made throughout the
positioned on the underside of the engine for acces-
engine; these have advantages in terms of reduced
sibility, and a fully aerobatic, self-contained oil system
leakage, mass, lower heat transfer to oil and improved
with automatic oil debris monitoring. The oil tank
supportability.
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
DECMU 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 maintenance 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 T h e E J 2 0 0 fe a t u r e s a convergent-divergent variable exhaust nozzle, optimized for multi-mission, subsonic and supersonic performance. The nozzle position is controlled by the DECMU and adjusted (modulated) constantly throughout the dry and reheat operational range.
22
23
MODULAR CONSTRUCTION
HIGH PRESSURE COMPRESSOR
LOW PRESSURE COMPRESSOR VARIABLE INLET GUIDE VANES
INTERMEDIATE CASING
BYPASS DUCT
BEARING SUPPORT
HIGH PRESSURE TURBINE
COMBUSTION CASING AND COMBUSTOR
GEARBOX
EXHAUST DUCT LOW PRESSURE ROTOR
VARIABLE NOZZLE
LOW PRESSURE STATOR
AFTERBURNER
24
25
EJ200—PRESENCE AND FUTURE
More than 1,500 EJ200 engines are currently on contract to six nations. The first export customers are Austria and the Kingdom of Saudi Arabia. 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. The EJ200 engine has an unprecedented performance record combined with multi-role capability, highest availability and low life-cycle costs.
EJ200—THE ENGINE OF CHOICE FOR SINGLE OR T WIN APPLICATIONS.
26
EUROJET Turbo GmbH Lilienthalstraße 2 b 85399 Hallbergmoos Germany
Phone: Fax:
+49 8 11 55 05–0 +49 8 11 55 05 –139
E-Mail: Web:
[email protected] www.eurojet.de
