Apparate für ein Flugzeugtriebwerk

Details

Veröffentlichungs-Nr.

EP4749080

Anmeldetag

26. November 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

F01D5/02

Abstract

A rotating structure (70) for an aircraft powerplant (20) includes a shaft (74), a retainer (78), a balancing device (76) and a bladed rotor. The shaft (74) includes a bore (82) and a shoulder (102) axially along the bore (82). The retainer (78) is disposed in the bore (82) and mounted to the shaft (74). The balancing device (76) is configured to rotationally balance the rotating structure (70) about the axis (72). The balancing device (76) is disposed in the bore (82) and axially retained between the shoulder (102) and the retainer (78). The balancing device (76) includes a balancing mass (114) with a plurality of mass teeth (120) arranged circumferentially about the axis (72). During a first condition, the balancing mass (114) is rotationally repositionable about the axis (72) relative to the shaft (74) while the balancing device (76) remains in the bore (82) and axially retained between the shoulder (102) and the retainer (78). During a second condition, the mass teeth (120) are meshed with a plurality of shaft teeth (96) to rotationally fixed the balancing mass (114) to the shaft (74).

Anmelder

Firma

Pratt & Whitney Canada Corp.

Land

🇨🇦 Kanada

Fachgebiete