Patent ID: 9028219
Filing Date: 2015-05-12
Classification: F01D,F04D,F05D

Abstract:
1. A turbomachine blade comprising a root portion and an aerofoil portion, the aerofoil portion having a leading edge, a trailing edge, a wall for forming a pressure surface extending from the leading edge to the trailing edge and wall for forming a suction wall extending from the leading edge to the trailing edge, wherein the aerofoil portion includes a first extension extending from the suction wall towards the pressure wall and a second extension extending from the pressure wall towards the suction wall, wherein a first catch element is provided on the first extension and a second catch element is provided on the second extension wherein the first catch element is arranged to engage with the second catch element and absorb energy after impact to the blade by the foreign object and the first catch element and the second catch element are separated from each other by a volume containing a viscoelastic damper.