F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 27/00 (2006.01) F04D 29/56 (2006.01) F04D 29/68 (2006.01)
Patent
CA 2721423
The invention relates to a turbomachine compressor comprising variable-pitch blades including an airfoil section connected by a circular plate (17) to a pivot (18) rotatably guided in a hole in a casing (14). The aforementioned plate includes an air supply duct (40), one end of which is intended to: communicate with a passage (46) formed in the casing when the blade is in a first position, so as to inject air into the flow path of the compressor upstream of the blade; and be blocked by the casing when the blade is in a second position.
Compresseur de turbomachine, comprenant des aubes à calage variable comportant une pale reliée par une platine (17) à contour circulaire à un pivot (18) guidé en rotation dans un orifice d'un carter (14), la platine comportant un conduit (40) d'alimentation en air dont une extrémité est destinée à communiquer avec un passage (46) formé dans le carter lorsque l'aube est dans une première position, pour l'injection d'air dans la veine du compresseur en amont de l'aube, et à être obturée par ce carter lorsque l'aube est dans une seconde position.
Domercq Olivier Stephane
Perrot Vincent Paul Gabriel
Poitevin Jean-Pierre
Goudreau Gage Dubuc
Snecma
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