Kontrolliertes Kontaktinduziertes Knicken einer Speichenlagerstütze

Details

Veröffentlichungs-Nr.

EP4667709

Aktenzeichen

EP25184002

Anmeldetag

19. Juni 2025

Veröffentlichung

24. Dezember 2025

Rechtsraum

EP

IPC

F01D21/04F01D25/16

Abstract

A bearing arrangement (60) of a gas turbine engine includes a first bearing (26) supportive of a shaft, and a second bearing (28) axially offset from the first bearing (26). A first bearing support (62) extends from a bearing housing (64) to the first bearing (26), and a second bearing support (66) extends from a bearing housing (64) to the second bearing (28). One or more radial bearing supports (72) including a plurality of radial spokes (76) extend between the bearing housing (64) and the second bearing (28). The spokes (76) are configured to buckle under compression when radial loads at the second bearing (28) exceed a predetermined force threshold. An axially-extending spoke foot (80) extends from at least one radial spoke (76). The axially-extending spoke foot (80) is configured to contact the second bearing (28) in the event of a tilt of the second bearing (28) beyond a predetermined angle threshold, reducing the buckling force of the plurality of radial spokes (76) below a second predetermined force threshold.

Anmelder

Firma

PRATT & WHITNEY CANADA CORP.

Land

🇨🇦 Kanada

Fachgebiete