Patent ID: 8870543
Filing Date: 2014-10-28
Classification: F01D,F04D

Abstract:
1. A rotor stage of a compressor drum ( 2 ) for an axial turbomachine comprising a row of rotor vanes ( 9 ), each provided with a platform ( 12 ), and a wall ( 3 ) that is generally symmetrical in revolution relative to the rotation axis of the turbomachine and forming a hollow body, said wall ( 3 ) comprising a partition wall and a support zone ( 5 ) that is raised relative to the partition wall in a direction oriented towards the outside of the hollow body, said support zone ( 5 ) forming an annular cavity that is open towards the inside of the hollow body and said support zone ( 5 ) comprising a central portion ( 8 ) and side walls ( 7 ) connecting the central portion ( 8 ) to the partition wall of the drum, said platform ( 12 ) of each of said vanes ( 9 ) being assembled to said central portion ( 8 ) by means of one or more fastening elements.