Bürstendichtung mit Integriertem Kühlkanal und Verfahren

Details

Veröffentlichungs-Nr.

EP4779127

Anmeldetag

15. Januar 2026

Veröffentlichung

22. Juli 2026

Rechtsraum

EP

IPC

F01D11/00, F16J15/3288

Abstract

A brush seal (200; 201; 202; 330) of a turbine engine (20) may provide a cooling flow (255; 355) to a ceramic matrix composite (CMC) component (210; 310; 320) that has a hot side (212; 312) configured for exposure to a hot gas path of the turbine engine (20) and an opposing cold side (214). The brush seal (200...330) includes an inner diameter (ID) backing plate (220) providing a radial face seal (217) across a cavity (216) in the CMC component (210; 310; 320), with the cavity (216) having an entrance disposed on the cold side (214) to receive the cooling flow (255; 355). The brush seal (200...330) also has an outer diameter (OD) backing plate (230), a plurality of brush seal bristles (240) disposed between the ID backing plate (220) and OD backing plate (230) and attached thereto in a welding zone, and a hole (250; 251; 252; 350) extending through the OD backing plate (230), the brush seal bristles (240), and the ID backing plate (220) in the welding zone to provide the cooling flow (255; 355) to the cavity (216) of the CMC component (210; 310; 320).

Anmelder

Firma

RTX Corporation

Land

🇺🇸 USA

Fachgebiete