Cmc-Bauteil, Boas-Anordnung, Verfahren zum Kühlen eines Cmc-Bauteils, und Turbinentriebwerk

Details

Veröffentlichungs-Nr.

EP4786739

Anmeldetag

15. Januar 2026

Veröffentlichung

5. August 2026

Rechtsraum

EP

Abstract

A ceramic matrix composite (CMC) component (200) for a turbine engine includes a base (210) having a radial outer surface (212) and a radial inner surface inward surface (215). The base includes a plurality of ceramic fiber plies and a ceramic matrix. A forward flange structure (220) and an aft flange structure (230) each extend from the radial outer surface of the base. A splash plate (270) is positioned between the forward flange structure and the aft flange structure to direct cooling air flowing from a forward end of the base to an aft end of the base towards the radial outer surface of the base. The splash plate has a first end proximate the forward flange structure, a second end proximate the aft flange structure, and an inner surface facing the radial outer surface of the base and including a curved surface region (275) that curves towards the outer radial surface of the base. The CMC component is a blade outer air seal (BOAS). A BOAS assembly includes a plurality of the BOAS segments arranged to form an annular shaped structure. A method of assembling the CMC component includes: providing the CMC component and providing the splash plater plate. The turbine engine includes a fan section (22), a compressor section (24), a combustion chamber (56), and a turbine section (28). The turbine section includes at least one rotor and one or more turbine blade(s) extending radially outwardly from the at least one rotor; the blade outer air seal assembly positioned between the one or more turbine blade(s); and an outer casing (36).

Anmelder

Firma

RTX Corporation

Land

🇺🇸 USA