Patent ID: 7596938
Filing Date: 2009-10-06
Classification: F02C,F05D

Abstract:
1. A turbomachine front portion comprising an internal support shroud for fan outlet guide vanes of a fan, and a flow splitter fairing from which an annular primary duct and an annular secondary duct of the turbomachine originate, wherein said front portion additionally comprises at least one deflector system configured to prevent or limit the ingress of foreign bodies inside said primary duct of the turbomachine, said deflector system comprising a plurality of movable deflecting surfaces together with an actuator configured to move said deflecting surfaces from a retracted position to a deployed position for deflecting the foreign bodies and to move said deflecting surfaces from said deployed position back to said retracted position, said deflector system being mounted on said internal support shroud such that, in the deployed position, a downstream end of each deflecting surfaces is situated upstream of said flow splitter fairing, wherein said deflecting surfaces are spaced angularly from one another about a longitudinal axis of the fan such that free spaces remain between directly consecutive deflecting surfaces in said deployed position so as to allow air to pass through said deflecting surfaces and into said annular primary duct.