Lückenbefestigung für Keramikmatrix-Verbundstoffschaufel und Verfahren

Details

Veröffentlichungs-Nr.

EP4749094

Anmeldetag

18. November 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

F01D9/02

Abstract

An attachment assembly (100) for a ceramic matrix composite (CMC) vane (140) includes an inner diameter ring (110) having a strut recess (118) and a first flange (115) on a downstream side configured for engaging an inner platform (142) of the CMC vane (140), an outer diameter ring (120) having a support structure (125) disposed to form a gap (150) relative to a portion (148) of an outer platform (146) of the CMC vane (140) during a non-operating engine condition, and a strut (130) cantilevered from an inner side of the outer diameter ring (120) and disposed to pass through a hollow portion (148) within an airfoil (145) of the CMC vane (140) to engage the strut recess (118) in the inner diameter ring (110) to support the inner diameter ring (110) and the CMC vane (140). The inner and outer diameter rings and the strut (130) may be metallic and carry the loads rather than the CMC carrying the loads.

Anmelder

Firma

RTX Corporation

Land

🇺🇸 USA