Befestigungsstift umfassend einen Langestreckten Körper mit einer Längsachse, die sich von einem Ersten Ende zu einem Zweiten Ende Erstreckt, Cmc-Bauteil, Boas-Anordnung, Verfahren zum Kühlen eines Cmc-Bauteils, und Turbinentriebwerk

Details

Veröffentlichungs-Nr.

EP4782661

Anmeldetag

15. Januar 2026

Veröffentlichung

29. Juli 2026

Rechtsraum

EP

Abstract

An attachment pin (240) includes an elongated body with a longitudinal axis extending from a first end (280) to a second end (282), a cooling passageway (290) extending axially from the first end along the longitudinal axis, and one or more cooling air outlets (295) extend radially from the cooling air passageway to provide for discharge of fluid from the cooling passageway. A ceramic matrix composite (CMC) component 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 extending from the radial outer surface of the base, the forward flange structure having a first opening (222) and a second opening (225), and the aft flange structure has a first opening (232) and a second opening (235). The CMC component includes a first (240) and a second (250) of the attachment pin for attaching the CMC component to a support structure, the first attachment pin passing through the first opening of the forward flange structure and the first opening of the aft flange structure, and the second attachment pin passing through the second opening of the forward flange structure and the second opening of the second flange structure. A BOAS assembly comprising a plurality of BOAS segments being the CMC component arranged to form an annular shaped structure. A method of cooling a CMC component includes providing the CMC component and the first and the second attachment pins. A turbine engine includes a fan section (22), a compressor section (24), a combustion chamber (56), a turbine section (28), the turbine section including at least one rotor and one or more turbine blade extending radially outwardly from the at least one rotor, and the blade outer air seal assembly being positioned between the one or more turbine blade(s) and an outer casing to the engine.

Anmelder

Firma

RTX Corporation

Land

🇺🇸 USA