INJECTION OF AIR INTO THE FLOW PATH OF A TURBOMACHINE COMPRESSOR

摘要

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.