The ARIANE L5 engine is the most important European engine development in the storable bipropellant medium thrust class. The L5 engine employs a multi-element injector concept using coaxial injection elements, a fuel regeneratively cooled combustion chamber and a radiation cooled nozzle extension. The technology for the engine components is derived from similar components developed by MBB-ERNO for the ARIANE HM7 LOX/LH2 engine, but due to the hypergolic nature of the L5 engine propellants the existing knowledge for LOX/LH2 can only partially be transferred. Therefore an experimental program at MBB-ERNO was initiated to demonstrate the feasibility of the coaxial injector concept. This experimental program is part of the Preparatory Phase for the ARIANE 5 Launcher Propulsion. For the L5 engine this activity includes the overall engine design and the Lay-out of the propulsion subsystem. This paper reviews the L5 engine design, the performance and operating characteristics as well as the engine development status. Main emphasis is given to the injector development presently under way.
Development status of the Ariane L5 engine
Entwicklungsstand des Ariane L5 Triebwerks
AIAA-Papers ; Jul ; 1-5
1987
5 Seiten, 8 Bilder, 3 Tabellen
Conference paper
English
Development status of the Ariane L5 engine
AIAA | 1987
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