Lageranordnung für einen Gasturbinenmotor

Details

Veröffentlichungs-Nr.

EP4534808

Aktenzeichen

EP24205048

Anmeldetag

7. Oktober 2024

Veröffentlichung

11. Juni 2025

Rechtsraum

EP

IPC

F01D25/18F01D25/16F01D11/00

Abstract

A gas turbine engine (20) is provided that includes a static structure (52), a rotating shaft (54), and a bearing assembly (50). The bearing assembly (50) includes a bearing (56) and a seal subassembly (80). The bearing (56) has inner and outer races (60, 62) and a plurality of roller elements (64). The outer race (62) includes a shield member (66). The seal subassembly (80) includes a seal element (82) coupled with the static structure (52) and a seal runner (84) coupled with the rotating shaft (54). Portions of the seal runner (84), the outer race (62), and the inner race (60) define a first bearing cavity (90). Portions of the seal runner (84), the outer race (62), the seal element (82), and the static structure (52) define a lateral bearing cavity (48). The lateral bearing cavity (48) is disposed axially between the first bearing cavity (90) and the seal element (82). The outer race (62) includes a plurality of drain holes (70) that provide fluid communication between the first bearing cavity (90) and the lateral bearing cavity (48).

Anmelder

Firma

PRATT & WHITNEY CANADA CORP.

Land

🇨🇦 Kanada

Fachgebiete