US 12,331,659 B2
Turbine blade of a turbine engine with self-generated interlock contact force in operation
Patrick Joseph Marie Girard, Moissy-Cramayel (FR); Didier René André Escure, Moissy-Cramayel (FR); Matthieu Arnaud Gimat, Moissy-Cramayel (FR); Sébastien Serge Francis Congratel, Moissy-Cramayel (FR); and Arthur De Castro, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR); and SAFRAN CERAMICS, Le Haillan (FR)
Appl. No. 18/699,150
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR); and SAFRAN CERAMICS, Le Haillan (FR)
PCT Filed Sep. 30, 2022, PCT No. PCT/FR2022/051853
§ 371(c)(1), (2) Date Apr. 5, 2024,
PCT Pub. No. WO2023/057707, PCT Pub. Date Apr. 13, 2023.
Claims priority of application No. 2110651 (FR), filed on Oct. 7, 2021.
Prior Publication US 2024/0263560 A1, Aug. 8, 2024
Int. Cl. F01D 5/30 (2006.01); F01D 5/14 (2006.01); F01D 9/04 (2006.01)
CPC F01D 5/3084 (2013.01) [F01D 5/141 (2013.01); F01D 9/041 (2013.01); F05D 2300/6033 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A turbomachine blade, the blade comprising an airfoil extending along a first direction between a first internal end and a second internal end, a blade base secured to the first internal end of the airfoil, and a root secured to the second internal end of the airfoil, the root including a platform delimited along a second direction perpendicular to said first direction by an upstream edge and a downstream edge and delimited along a third direction orthogonal to the first direction and to the second direction by a first lateral edge and a second lateral edge, the first lateral edge having, in a plane comprising the second and third directions, a shape complementary to the shape of the second lateral edge,
the first lateral edge comprises a first portion and a second portion, the first portion extending from the upstream edge to the second portion, the second portion externally protruding along the third direction, the second portion comprising a first part and a second part, the first part comprising a first segment, a second segment, and a third segment, the first segment forming a first acute angle with the first portion, the second segment connected to the first segment and extends parallel to the first portion and the second part of the second portion, the third segment connected to the second segment and the second part of the second portion, the third segment extending parallel to the first segment, and the second part of the second portion extending from the downstream edge to the third segment of the first part of the second portion,
wherein the second lateral edge comprises a third portion extending from the upstream edge, and a fourth portion internally protruding along the third direction at a second acute angle with the third portion.