Gasturbinenmotorleitschaufel

Details

Veröffentlichungs-Nr.

EP4749088

Anmeldetag

26. November 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

F01D5/18, F01D9/04

Abstract

Gas turbine engine (10) nozzle and associated airfoil (123) designs are disclosed. An example airfoil (123) includes: a convex panel (920, 1120); a concave panel (1020); an outer band (930, 1030, 1130); and an inner band (940, 1040, 1140), the concave panel (1020) having an area of maximum curvature (MC) that includes a plurality of metering holes (910, 1010, 1110), the airfoil (123) characterized by the following equation, in which a MC metering hole area (1230) (MCA (870, 1180)), inner band (940, 1040, 1140) radius (IBR), exhaust gas temperature (EGT), and engine core speed (N), are related as follows: Equation1=MCAm20.000005m22IBRm1m∗14∗NHz300HzEGT°C1000°C2, wherein 1.720x10^-6 meters squared (m²) ≤ MCA ≤ 3.000x10^-6 m², 0.213 m ≤ IBR ≤ 0.221 m, 988 degrees Celsius (C) ≤ EGT ≤ 1120 C, 306 Hertz (Hz) ≤ N ≤ 353 Hz, and 0.351 ≤ Equation 1 ≤ 1.644.

Anmelder

Firma

General Electric Company

Land

🇺🇸 USA