Dichtungssystem für ein Gasturbinentriebwerk, Gasturbinentriebwerk und Verfahren zur Herstellung, zur Reparatur oder zum Austausch eines Dichtungssystems

Details

Veröffentlichungs-Nr.

EP4293201

Aktenzeichen

EP23179883

Anmeldetag

16. Juni 2023

Veröffentlichung

20. Dezember 2023

Rechtsraum

EP

IPC

F01D11/08F01D25/24F01D11/02// F01D11/00F01D11/12

Abstract

A seal system (60) for a gas turbine engine includes a ceramic matrix composite (CMC) seal arc segment (64) and a carrier (66) supporting the CMC seal arc segment (64). The CMC seal arc segment (64) defines radially inner and outer sides (68a, 68b) and has an abradable layer (84) disposed on the radially outer side (68b). There is a cooling cavity (80) radially between the carrier (66) and the abradable layer (84). The carrier (66) includes a ridge (86) that projects into a groove (84a) in the abradable layer (84) and provides a labyrinth seal that partitions the cooling cavity (80) into sub-cavities (80a, 80b, 80c). A method for manufacture, repair or replacement of a seal system is also provided.

Anmelder

Firma

RTX Corporation

Land

🇺🇸 USA

Fachgebiete