Safran Aircraft Engines

Thomas Michel Mervant

Jean-Armand Marc Destouches

Erwan Daniel Botrel

Maxime Didier Delabriere

Vincent Nicolas Leonardon

Daniel Marius Man

Pierre Hervé Marche

Renaud Gabriel Royan

Laurent Patrick Coudert

When cold and in the non-coated state, the aerodynamic profile is substantially identical to a nominal profile determined by the Cartesian coordinates X,Y, Zadim given in Table 1, in which the coordinate Zadim is the quotient D/H where D is the distance of the point under consideration from a first reference plane Psituated at the base of the nominal profile, and H is the height of said profile measured from the first reference plane to a second reference plane P. The measurements D and H are taken radially relative to the axis of the turbine, while the X coordinate is measured in the axial direction of the turbine.

Optimized aerodynamic profile for a turbine vane, in particular for a nozzle of the fourth stage of a turbine

When cold and in the non-coated state, an aerodynamic profile defining an arm of a structural casing of a turbine having a central hub and a shroud is substantially identical to a nominal profile determined by Cartesian coordinates X,Y,Zadim given in Table 1, in which the coordinate Zadim is a quotient D/H where D is a distance of a point under consideration from a first reference plane Psituated at a base of the nominal profile, and H is a height of said nominal profile measured from the first reference plane to a second reference plane P. The measurements D and H are taken radially relative to an axial direction of the turbine, while the X coordinate is measured in the axial direction of the turbine.

Optimized aerodynamic profile for an arm of a structural casing of a turbine, and structural casing having such an arm

Optimized aerodynamic profile for a turbine vane, in particular for a nozzle of the fifth stage of a turbine

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Paris, France

Thomas Michel Mervant