Patent ID: 8348619
Filing Date: 2013-01-08
Classification: F01D,F05D,Y02T

Abstract:
1. A platform for a bladed wheel of a turbomachine comprising a drum and blades of hammer-head attachment type, a foot of each of the blades is retained in a circumferential groove of the drum, the platform comprising: at least two openings spaced apart circumferentially and each able to receive the foot of a blade; a first stiffener provided at a first axial end of the platform and a second stiffener provided at a second axial end of the platform, the first stiffener including a first lateral bearing face extending radially inward and abutting an upstream lateral wall of the circumferential groove and the second stiffener including a second lateral bearing face extending radially inward and abutting a downstream lateral wall of the circumferential groove; and a first inter-platform bearing face provided at a first circumferential end of the platform and a second inter-platform bearing face provided at a second circumferential end of the platform, the first inter-platform bearing face cooperating with a second inter-platform bearing face of an adjacent platform, wherein the platform constitutes a multiple-blade platform in the form of a piece separate from the blades.