Turbine engine blade with improved cooling

US11499436B2 · kind B2 · utility

Assignees

• SAFRAN · FR
• SAFRAN AIRCRAFT ENGINES · FR

Inventors

• Léandre Ostino · Moissy-Cramayel, FR
• Pierre Guillaume Auzillon · Moissy-Cramayel, FR
• Romain Pierre Cariou · Moissy-Cramayel, FR
• Thomas Olivier Michel Pierre De Rocquigny · Moissy-Cramayel, FR
• Patrice Eneau · Moissy-Cramayel, FR
• Adrien Bernard Vincent Rollinger · Moissy-Cramayel, FR
• Vianney Simon · Moissy-Cramayel, FR
• Michel Slusarz · Moissy-Cramayel, FR
• Ba-Phuc Tang · Cergy, FR

Key dates

• Filing date: Nov 29, 2019
• Grant date: Nov 15, 2022
• Expiry date: Nov 29, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A turbine blade including a root carrying an impeller terminated by a tip in the form of a squealer tip. This impeller also includes a serpentine median circuit, including a first radial pipe collecting air at the root and that is connected by a first bend to a second radial pipe that is connected by a second bend to a third radial pipe, a cavity under the squealer tip running along the pressure side wall, extending from a central region of the tip to the trailing edge, and a radial central pipe collecting air at the root extending between at least two of the three pipes of the median circuit and directly supplying the cavity under the squealer tip.