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Titre du document / Document title

Ceramic journal bearings in cryogenic turbo-pumps : Launcher Technology

Auteur(s) / Author(s)

NELIS M. (1) ; BOZET J. L. (1) ; BICKEL M. (2) ; LEUCHS M. (2) ; LANGE H. (2) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Université de Liège, Institut de Mécanique et de Génie Civil Chemin des Chevreuils, 1, 4000 Liège, BELGIQUE
(2) MAN Technologie AG, Franz-Josef-Strauss-Strasse 5, 86153 Augsburg, ALLEMAGNE

Résumé / Abstract

The availability of components built in CMC technology forms in major areas a prerequisite for the realisation of future reusable launcher engines. Apart from the efforts to introduce CMC components in the hot areas of the engine like nozzles and thrust chambers there exists an important optimisation potential in the engines through the use of CMC components in (cryogenic) turbo-pumps. By replacement of the ball bearings in the pumps by journal bearings, a significantly higher lifetime can be obtained and the inherent limitation of the turning speed of the pumps can be widely extended. The CMC journal bearings of MAN have proven their quality and reliability in numerous applications in industrial pumps. Based on this experience a research program was initiated by DLR and funded by means of the BMBF and MAN to investigate the use of this bearing type under the conditions of a cryogenic turbo-pump. Major results are presented in this paper.

Revue / Journal Title

European journal of mechanical and environmental engineering    ISSN  1371-6980 

Source / Source

2003, vol. 48, no2, pp. 73-80 [8 page(s) (article)] (14 ref.)

Langue / Language

Anglais
Revue : Neerlandais

Editeur / Publisher

Belgian Society of Mechanical and Environmental Engineering, Brussels, BELGIQUE  (1996-2003) (Revue)

Mots-clés anglais / English Keywords

Experimental study

;

Liquid oxygen

;

Turbopump

;

Cryogenic temperature

;

Space application

;

Carbon fiber

;

Silicon carbide

;

Ceramic matrix composite

;

Journal bearing

;

Structural ceramic

;

Tribology

;

Mots-clés français / French Keywords

Etude expérimentale

;

Oxygène liquide

;

Turbopompe

;

Température cryogénique

;

Application spatiale

;

Fibre carbone

;

Silicium carbure

;

Composite matrice céramique

;

Palier lisse

;

Céramique thermomécanique

;

Tribologie

;

Mots-clés espagnols / Spanish Keywords

Estudio experimental

;

Oxígeno líquido

;

Turbobomba

;

Temperatura criogénica

;

Aplicación espacial

;

Fibra carbón

;

Silicio carburo

;

Compuesta matriz ceramica

;

Cojinete liso

;

Cerámica termomecánica

;

Tribología

;

Mots-clés d'auteur / Author Keywords

Hydrostatic bearings

;

LOX

;

Ceramic matrix composites

;

CMC

;

SSIC

;

Tribology

;

Test rig

;

Localisation / Location

INIST-CNRS, Cote INIST : 15217, 35400011860880.0020

Nº notice refdoc (ud4) : 14924085



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