Safran

Safran Aircraft Engines

Snecma

Sylvain Paquin

Adrien Bernard Vincent Rollinger

Romain Pierre Cariou

Thomas Michel Flamme

Patrice Eneau

Charlotte Marie Dujol

Léandre Ostino

Jacques Auguste Amedee Boury

Hugues Denis Joubert

Filippo Pagnoni

Adrien Bernard Rollinger

Jacques Auguste Boury

The invention relates to a method for manufacturing a vane () of a turbine engine comprising a pressure-face wall () and a suction-face wall () spaced apart from one another, this vane () comprising a tip (S) with:

High-pressure turbine vane including a cavity under a squealer tip

The invention relates to a turbomachine turbine vane comprising a root having a blade () comprising a leading edge () and a trailing edge () and a lower surface wall () and an upper surface wall (), as well as: a manifold for cooling () the leading edge (); a supply line () for collecting air from the root and supplying the manifold (); a side cavity () extending along the upper surface wall () and supplied with air from the root, to form a heat shield facing the supply line (); and a circuit forming a trombone comprising a middle portion () extending along the supply line () and extending laterally to the upper surface wall (), the middle portion () being supplied by the supply line at the tip of the blade ().

Cooled turbine vane

Aviation turbine blade () extending in the radial direction from a blade root () as far as an upper partition wall (), said blade () comprising a plurality of inner cavities (C-C) defining at least one cooling circuit, each of said inner cavities (C-C) being defined by walls among inner walls (), a lower surface wall (), an upper surface wall (), the blade root () and the upper partition wall (), said blade () being characterized in that it comprises at least one reinforcing beam () disposed inside one of the inner cavities (C, C), and connecting the blade root () to the upper partition wall (), said reinforcing beam () is not connected to the inner walls (), the lower surface wall () and the upper surface wall ().

Turbine blade having an improved structure

Blade for a turbine, comprising a blade root and an airfoil () extending radially outwards from the blade root (), the airfoil () comprising a first internal cooling circuit including an intrados cavity () extending radially along the intrados wall () and a first inner wall () arranged between the intrados wall () and the extrados wall (), an extrados cavity () extending radially along the extrados wall () and a second inner wall () arranged between the intrados wall () and the extrados wall (). The first cooling circuit includes one inner through cavity () defined between two through walls () each extending between the intrados wall () and the extrados wall (). The intrados cavity (), the extrados cavity () and the inner through cavity () are fluidly connected in series.

Blade comprising an improved cooling circuit

An aviation turbine blade () includes at least a first lower surface cavity (C) and a first upper surface cavity (C), each adjacent to a first through-cavity (C) and a second through-cavity (C), the first upper surface cavity (C) being adjacent to the upper surface wall (), the first lower surface cavity (C) being adjacent to the lower surface wall (), each of the first and second through-cavities (C, C) extending from the lower surface wall () as far as the upper surface wall (), the second through-cavity (C) including a first inner wall (P) extending from the upper surface wall () as far as the first through-cavity (C), and a second inner wall (P) extending from the lower surface wall () as far as the first through-cavity (C). The first (P) and second (P) inner walls are not connected.

A ceramic core used for fabricating a hollow turbine blade for a turbine engine by using the lost-wax casting technique and shaped to constitute the cavities of the blade as a single element, includes, in order to feed the insides of these cavities jointly with cooling air, core portions that are to form first and second lateral cavities and that are connected to a core portion that is to form at least one central cavity, firstly in the core root via at least two ceramic junctions, and secondly at various heights up the core via a plurality of other ceramic junctions of positioning that defines the thickness of the internal partitions of the blade, while also ensuring additional cooling air for predetermined critical zones of the first and second lateral cavities.

Ceramic core for a multi-cavity turbine blade

An aviation turbine blade extending in the radial direction and presenting a pressure side and a suction side, including a plurality of pressure side cavities extending radially at the pressure side of the blade, a plurality of suction side cavities extending radially at the suction side of the blade, and at least one central cavity located in the central portion of the blade and surrounded by pressure side cavities and by suction side cavities, the blade further including a plurality of cooling circuits, in which at least a first cooling circuit comprises: a first cavity and a second cavity, the first and second cavities communicating with each other at a radially inner end and at a radially outer end of the blade.

Turbine blade comprising a cooling circuit

A moving blade for a turbomachine, the central portion of the blade including a pressure-side cooling circuit and a suction-side cooling circuit. The pressure-side circuit comprises at least first and second pressure-side cavities extending from the pressure side of the blade to a central wall, a central cavity extending from the pressure side to the suction side of the blade, and outlet orifices opening out from the central cavity and into the pressure-side face of the blade. The suction-side circuit comprises at least first and second suction-side cavities extending radially from the suction side of the blade to the central wall, a central cavity extending across the blade from the pressure side to the suction side, and outlet orifices opening out from the central cavity and into the pressure-side face of the blade.

Growing community of inventors

Moissy-Cramayel, France

Sylvain Paquin