Überdrehzahlschutz für eine Turbine

Details

Veröffentlichungs-Nr.

EP4459106

Aktenzeichen

EP24165902

Anmeldetag

25. März 2024

Veröffentlichung

21. Januar 2026

Erteilung

21. Januar 2026

Rechtsraum

EP

IPC

F01D21/02F01D21/04F01D21/06

Abstract

An apparatus and method for reducing a pressure differential across a turbine 19 of a gas turbine engine 10 during a shaft break event, comprises a pressure equalization apparatus 300, 400, 500, 600, 700 configured to introduce a pressurised fluid into a core airflow A at a region downstream of the turbine 19, wherein a rearward movement of the turbine 19 or a shaft 26 in a shaft break event directly actuates the pressure equalisation apparatus 300, 400, 500, 600, 700 to directly increase a local pressure at the downstream region 29 of the turbine 19 and thereby reduce the pressure differential across the turbine 19. The reduction in the pressure differential may result in a reduction in the acceleration of the turbine 19.

Anmelder

Firma

Rolls-Royce plc

Land

🇬🇧 Großbritannien

Fachgebiete