Tragflügelbauteil für eine Hochdruck- oder Zwischendruckturbine

Details

Veröffentlichungs-Nr.

EP4764156

Anmeldetag

20. November 2025

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

IPC

F01D5/14

Abstract

An aerofoil component for a high-pressure or intermediate-pressure turbine (16, 17) of a multi-spool gas turbine engine (10). The component having an aerofoil member (31, 41) which, in use, spans a working gas annulus of the gas turbine engine. The aerofoil member has pressure side and suction side aerofoil surfaces which each extend from a leading edge to a trailing edge of the aerofoil member such that transverse cross sections through the aerofoil member provide respective aerofoil sections. The spacing between the leading and trailing edges on the midspan aerofoil section (MS) defines a midspan axial chord length (C<x>) of the aerofoil member. The aerofoil member are arranged, in use, in a circumferential row around the annulus with plural, equally spaced, identical aerofoil members whereby the circumferential spacing of the aerofoil members at the trailing edges of their midspan aerofoil sections (MS) defines a midspan pitch (S) of the aerofoil member. At midspan: the value of S/C<x> is in the range from 1.4 to 1.6; and the uncovered turning angle is 16° or more.

Anmelder

Firma

Rolls-Royce plc

Land

🇬🇧 Großbritannien