Gasturbinenmotorleitschaufel

Details

Veröffentlichungs-Nr.

EP4749086

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) of an engine nozzle segment (140, 800) includes: a concave panel (1020); a convex panel (920, 1120); a baffle; an outer band (930, 1030, 1130); and an inner band (940, 1040, 1140), the concave panel (1020) including a plurality of metering holes (910, 1010, 1110), the airfoil (123) characterized by the following equation, in which a concave panel (1020) metering hole area (1230) (CCVA (830, 1080)), baffle area (BA), inner band (940, 1040, 1140) radius (IBR), exhaust gas temperature (EGT), and engine core speed (N), are related as follows: =CCVAm2−1.52x10−5m21.52x10−5m2−3+BAm20.001m2∗IBRm20m∗NHz300HzEGT°C1000°C2, wherein 0.00005 meters squared (m²) ≤ BA ≤ 0.0002 m², 0.000005 m² ≤ CCVA ≤ 0.000015 m², 0.213 m ≤ IBR ≤ 0.221 m, 988 degrees Celsius (C) ≤ EGT ≤ 1120 C, 306 Hertz (Hz) ≤ N ≤ 353 Hz, and -6900.49 ≤ Equation 1 ≤ -0.03.

Anmelder

Firma

General Electric Company

Land

🇺🇸 USA