Platform and blade for a bladed wheel of a turbomachine, bladed wheel and compressor or turbomachine comprising such a bladed wheel
AssigneeTechspace Aero S.A.
InventorsAlain Derclaye, Philippe Ernst
Life of this patent
Estimating the term…
Abstract
A platform for a bladed wheel of a turbomachine including a drum and blades of hammer-head attachment type, the foot of which is retained in a circumferential groove of the drum, having bearing and/or retaining faces cooperating with the drum is disclosed. The platform includes at least two openings spaced apart circumferentially and each able to receive the foot of a blade, whereby it constitutes a multiple-blade platform in the form of a piece separate from the blades.
Claims11
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.
Dependencies are inferred from the claim text.