Cmc-Bauteil, Boas-Anordnung, Verfahren zur Steuerung eines Kühlluftstroms Innerhalb eines Cmc-Bauteils, und Turbinentriebwerk

Details

Veröffentlichungs-Nr.

EP4782658

Anmeldetag

15. Dezember 2025

Veröffentlichung

29. Juli 2026

Rechtsraum

EP

Abstract

A ceramic matrix composite (CMC) component (200) includes a base (210) having a radial outer surface (212) and a radial inner surface inward surface (315). The base includes a plurality of ceramic fiber plies and a ceramic matrix. The radial outer surface has a convex shape, at least one cooling cavity (260a, 260b) within the base that extends from the radial outer surface of the base into an interior region of the base. The at least one cooling cavity has a cavity opening at the radial outer surface of the base. The at least one cooling cavity is defined by cavity side walls (264a, 264b), a cavity bottom wall (266a, 266b), and a cover plate (270a; 270b) positioned within the at least one cooling cavity to cover the cavity opening. The cover plate is angled to vary a depth of the cooling cavity between the cover plate and the cavity bottom wall so that the depth varies from a cavity region of greater depth to a cavity region of lesser depth. A method of controlling cooling air flow within a CMC component includes providing the CMC component. A turbine engine (20) includes a fan section (22), a compressor section (24), a combustion chamber (26), 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, and a blade outer air seal assembly positioned between the one or more turbine blade(s) and an outer casing of the engine. The blade outer air seal assembly is formed of a plurality blade outer air seal segments, wherein each blade outer air seal segment is the CMC component.

Anmelder

Firma

RTX Corporation

Land

🇺🇸 USA