Flugzeugtriebwerk mit Schmiermittelsystem mit Windmühlenkonfiguration

Details

Veröffentlichungs-Nr.

EP4818478

Anmeldetag

2. April 2026

Veröffentlichung

7. Oktober 2026

Rechtsraum

EP

IPC

F01D25/20

Abstract

An aircraft engine, has: a low-pressure assembly having first components (C1) having first inlets (I1) and first scavenge outlets (S1), one of the first components having a lubricant-receiving volume (V1); a high-pressure spool having second components (C2) having second inlets (I2) and second scavenge outlets (S2); a lubricant system (400A) having: a lubricant tank (301); a main pump (302) and a scavenge pump (303) driving drive a flow of the lubricant; a secondary pump (310) connectable to the volume (V1) and an outlet connectable to the first components (C1); valves (312,313); the lubricant system (400A) having: a standard configuration in which the valves (312,313) define a standard flow path extending from the lubricant tank (301) to the first inlets (I1) and the second inlets (I2) via the main pump (302); and a windmilling configuration in which the valves (312,313) define a windmilling flow path extending from the lubricant-receiving volume (V1) to the first inlets (I1) via the secondary pump (310) while bypassing the main pump (302), and from the first scavenge outlets (S1) to the lubricant-receiving volume (V1).

Anmelder

Firma

Pratt & Whitney Canada Corp.

Land

🇨🇦 Kanada

Fachgebiete