Cryotechnic2 .pdf


Nom original: Cryotechnic2.pdf
Titre: Microsoft Word - Document3
Auteur: MN Dumont

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Cryotechnic testbench
The cryotechnic testbench was built to conduct various applied researches requested by the Société
Européenne de Propulsion (SEP, European Propulsion Company) in the scope of research programs
at ESA (European Space Agency). This bench was to manipulate liquid oxygen unde pressure up to
50 bar and its flexibility allowed for the following achievements:

o

o
o
o

Comprehensive test and studies on the HM7B rocket engine gas generator
start-up. The HM7B is the propulsion system of the 3rd stage of ARIANE IV
rocket.
Characterisation test and studies of factors affecting the ignition of the gas
generator.
Measurement of head losses through an injector of HM7B engine.
Test of the LOX-flooded bearing on the LOX turbopump of HM7B engine.

Furthermore, we could realise :
o

o

a study of the cooling sequence and leak of the valves of the LOX circuit of
the VULCAIN rocket engine, fitted on the ARIANE V main stage. This was
undertaken for TECHSPACE AERO ( formerly Société FN moteurs)
study of a coaxial injector for the combustion chamber of the HM7B engine by
granulometry and velocimetry.


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