FIELD: non-displacement compressors and pumps.
SUBSTANCE: invention relates to a turbomachine component or collection of components comprising at least first and second blades and a platform from which the blades extend.
EFFECT: according to the invention, the platform has a non-axisymmetric surface bounded by two planes and formed by at least two class construction curves, each of which represents the value of the radius of said surface depending on the position between the pressure face of the first blade and the suction face of the second blade along the plane.
15 cl, 9 dwg
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