Luftgekühltes Turbinenbauteil, Äussere Laufschaufelluftdichtung, und Turbinenabschnitt eines Gasturbinentriebwerks

Details

Veröffentlichungs-Nr.

EP4796756

Anmeldetag

12. Februar 2026

Veröffentlichung

26. August 2026

Rechtsraum

EP

Abstract

An air-cooled turbine component includes a body (90) extending between and to a first radial surface (114) and a second radial surface (112) relative to a centerline axis (74). The body forms an internal cooling passage (116), a supply orifice (130), and a supply plenum (132) interconnected in fluid communication. The internal cooling passage is disposed between the first radial surface and the second radial surface. The internal cooling passage is formed by and radially between an inner passage wall (120) and an outer passage wall (118) of the body. The internal cooling passage includes an enclosed passage segment (122) and a downstream passage segment (126), the enclosed passage segment extending to a terminal end (124) formed by the body. The supply orifice extends between and to an inlet (136) of the supply orifice and an outlet (138) of the supply orifice along an orifice axis (134). The inlet is disposed at the second radial surface. The outlet is disposed at the supply plenum. The orifice axis extends obliquely relative to the inner passage wall and the outer passage wall, the orifice axis extending toward the enclosed passage segment in a direction from the inlet to the outlet. The supply plenum is disposed between and connects the internal cooling passage and the supply orifice together in fluid communication. The supply plenum is disposed between the enclosed passage segment and the downstream passage segment. A blade outer air seal (BOAS) (86) include a plurality of BOAS segments (88) assembled together in circumferential series about a BOAS axis (74), each of the BOAS segments being the air-cooled turbine component. A turbine section (60) of a gas turbine engine (22) includes a bladed turbine rotor (66) configured for rotation about a rotational axis (74), the bladed turbine rotor including a rotor stage (76), the rotor stage including a plurality of rotor blades (80); and the BOAS.

Anmelder

Firma

RTX Corporation

Land

🇺🇸 USA