Entlüftungsdichtung eines Ölsystems

Details

Veröffentlichungs-Nr.

EP4764295

Anmeldetag

19. Dezember 2025

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

IPC

F16N39/00, F16N7/38

Abstract

A de-aerator (54) includes a de-aerator housing (68) having a fluid inlet (54a) through which a mixture of oil and air enters, an air-oil outlet (54b) through which mixture of oil and air of lower oil concentration exits, and an oil outlet (54c) through which a flow of oil exits. An impeller (66) is positioned in the de-aerator housing (68) and is driven about an impeller axis (70) to separate oil from the mixture of air and oil and direct the oil toward the oil outlet (54c), and a seal (74) is positioned in the de-aerator housing (68) downstream of the impeller (66). The seal (74) includes a plurality of seal fins (76) extending radially outwardly from an impeller hub (78) of the impeller (66) toward an inner housing surface (80) of the de-aerator housing (68). The plurality of seal fins (76) define a labyrinth seal (82) with the inner housing surface (80) to minimize an oil outlet (54c) oil flow from exiting the de-aerator housing (68) via the air-oil outlet (54b).

Anmelder

Firma

Pratt & Whitney Canada Corp.

Land

🇨🇦 Kanada

Fachgebiete