DEVICE FOR LIMITING THE OVERVIEW OF A TURBINE ROTOR ROTOR

摘要

The invention relates to a device for limiting the overspeed of a turbine shaft (16) (44) of a turbomachine (10), comprising means for destroying the blades of at least one turbine stage (44a). said destruction means (56) including means (58) for projecting at least one projectile (60) on the path of the moving blades of said stage (44a), said projection means (58) being mounted on a housing ( 54) of the turbomachine (10) and controlled by means of detecting an overspeed of rotation of the turbine (44a), characterized in that the projection means (58) are mounted on said housing (54) upstream of at least one stage (44a) of the turbine (44) and are configured to release said at least one projectile (60) and to project it freely on the blades of said stage (44a) to cause the destruction of said stage ( 44a).