Patent ID: 6595755
Filing Date: 2003-07-22
Classification: F01D

Abstract:
A rotor assembly comprising:a disc; a blade sliding in the disc in a substantially axial direction of the disc; a first stop system including securing parts, the securing parts being at least partially flexible and being located between the disc and the blade; and a second stop system including a pair of opposing portions, the opposing portions being separated by an axial clearance, a first one of the opposing portions being provided on either the disc or a part secured to the disc and a second one of the opposing parts being provided on either the blade or a part secured to the blade, wherein when the blade is subjected to a predetermined force, the blade is displaced in the substantially axial direction with respect to the disc, the securing parts are displaced towards each other so that stop surfaces of the securing parts contact each other, the securing parts become temporarily deformed upon contact with each other, and a length of the axial clearance between the opposing parts becomes equal to zero, and wherein when the predetermined force on the blade is stopped, the blade is displaced back to an original position thereof, the securing parts are displaced back to original portions thereof so that the stop surfaces of the securing parts are no longer in contact with each other, and the securing parts are no longer deformed due to the at least partial flexibility of the securing parts.