Blade retention arrangement

摘要

A blade retention arrangement axially fixes blades ( 1 ) to a disk ( 2 ). A profiled blade root ( 3 ) extending from the airfoil is inserted into a conformal axial slot ( 5 ) in the disk ( 2 ) and is axially secured by means of a split retaining ring ( 4 ), with the retaining ring ( 4 ) at least partly engaging a groove ( 6 ) on the blade root ( 3 ). The disk ( 2 ) is provided with a circumferential annular groove ( 7 ) which has a radially inward seating face for the retaining ring ( 4 ) and the retaining ring ( 4 ) is elastically deformable at least in the axial direction.