EUROJET Turbo GmbH is the leading European military aero-engine consortium responsible for the management of the development, production, maintenance, support and sales of the new generation EJ200 engine.
Eurojet Turbo GmbH, said it has received a Request for Proposal (RFP) from the Indian Aeronautical Development Agency (ADA), to offer its EJ200 engine as a potential alternative power source for the Tejas, the country’s first Light Combat Aircraft (LCA) programme.
American GE, with its F-414 and Eurojet’s EJ200 are in the race to power the Indian LCA fighter. Their proposals, in response to the RFP, will be due by October.
Tejas is a tailless single-engine supersonic fighter with delta wings—shaped like a triangle—which uses fly-by-wire technology that enables pilots to control the plane electronically through on-board computers.
According to a news release, Eurojet is “now working on the response and will submit it to the Indian Aeronautical Development Agency within 12 weeks.”
India’s Gas Turbine Research Establishment (GTRE) was developing the Kaveri engine to power the LCA. Trying to integrate nearly 16,000 parts and subsystems became too complicated and in 2005, the Kaveri engine caught fire when it was first tested on board a Tupolev-16 aircraft in Russia.
The shareholders of EUROJET are Avio (Italy), ITP (Spain), MTU Aero Engines (Germany) and Rolls-Royce (UK).
The EJ200 engine is Europe’s next generation, advanced military turbofan engine. It has been designed to fulfill the most demanding requirements of the Eurofighter Typhoon.
The EJ200 is a two-spool turbo fan with a modular design, supporting the most stringent maintainability requirements.
Type- Twin shaft turbofan
Fan- 3 stage
Fan compression ratio- 4.2:1
Total compression ratio- 26:1
HP turbine- Single stage
LP turbine- Single stage
Combustion chamber- Annular
Bypass ratio- 0.4:1
Thrust:weight ratio- ca. 10:1
Airflow- 75/77 kg/s
Max. thrust with afterburner- 90kN (20,000 lbf)
Max. thrust without afterburner- 60kN (13,500 lbf)
Specific fuel consumption (dry)- 21-23 g/kNs
Specific fuel consumption (with afterburner)- 47-49 g/kNs
Weight- ca. 1,000kg
Length- 4 m
Diameter (fan)- 737mm
EUROJET has successfully delivered all 363 Tranche 1 production engines by the end 2006. Production engines have achieved 50,000 EFH (Engine FlyingHours) in the four-nation Air Forces and Instrumented Production Aircraft(IPA) in June 2007. First Tranche 2 production engines are currently being delivered.
Digital Engine Control and Monitoring Unit
The EJ200 engine powering the Eurofighter Typhoon features from Tranche II a further step in engine control and monitoring technology, integrating all elements necessary for Digital Electronic engine Control and Monitoring into a single unit (known as DECMU) as well as incorporating potential for future enhancements. The EJ200 DECMU combines the functionality of the engine mounted Digital Electronic Control Unit (DECU) and the aircraft mounted Engine Monitoring Unit (EMU).
Control System element
The full authority Digital Electronic 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 digital electronic control system as part of the electronic sub system processes all inputs from the engine sensor data and aircraft inputs, in order to control the hydro-mechanical elements of the system. All signal conditioning of the engine sensors used for control purposes is carried out by the DECMU.
Monitoring System element
The health monitoring system element of DECMU includes features such as individual component life usage, continuous vibration & 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.
Data is collected, stored and processed on-aircraft within the DECMU to produce information on the status of engine life usage, condition, incident status & testability. The data is downloaded to a Ground Support System (GSS) after flight for further detailed analysis.
The EJ200 engine enhancement for Tranche II in the form of the Digital Electronic Control and Monitoring Unit provides benefits in terms of cost, mass and reliability.
The DECMU system has been developed by the European Military Engine Consortium EUROJET Turbo GmbH, led by the German company MTU Aero Engines in partnership with AVIO, ITP, Rolls-Royce and European hardware suppliers.
With this advanced and innovative Control and Monitoring System the EJ200 powerplant sets new standards in military engine technology, supporting both current and future capabilities of the Eurofighter Typhoon.
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