F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 5/16 (2006.01) B64D 33/00 (2006.01) F01D 5/14 (2006.01) F01D 5/20 (2006.01)
Patent
CA 2493507
On a compressor with compressor blades, a flow transition fixation means (4) is provided on the suction side (2), approximately parallel to the leading edge (3) and upstream of the compression shocks acting upon the blade, which prevents he transition point from the laminar to the turbulent boundary layer flow from oscillating, thus suppressing oscillation of the compression shocks and their coupling effect with the natural frequencies of the compressor blades.
Sur un compresseur doté d'aubes mobiles, un moyen de fixation de la transition de débit (4) est prévu sur le côté aspiration (2), de façon presque parallèle au bord d'attaque (3) et en amont des chocs de compression agissant sur l'aube, ce qui empêche le point de transition du laminaire au flux de couche limite turbulente d'osciller, supprimant ainsi l'oscillation des chocs de compression et leur effet de couplage avec les fréquences naturelles des aubes mobiles.
Goudreau Gage Dubuc
Rolls-Royce Deutschland Ltd & Co Kg
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