CENTRIFUGAL DE-AERATOR FOR AIRCRAFT ENGINE

A de-aerator (30) for a lubrication system (100), has: a housing (34) defining an air-oil inlet (30a), an oil outlet (30B), and an air outlet (30c) of the de-aerator (30); a rotor (32) received within the housing (34) and rotatable relative to the housing (34) about a central axis (A), the rotor (32) having blades (32c) distributed about the central axis (A) and extending at least partially radially relative to the central axis (A), flow passages (P) extending between the blades (32c), the rotor (32) having a hub (32b) circumferentially extending around the central axis (A) and around the blades (32c), the hub (32b) having a peripheral wall (32j2) oriented radially inwardly and defining a fore opening (32j) leading to the flow passages (P); and a gap (G) between the housing (34) and the hub (32b) of the rotor (32a), a portion of the housing (34) received within the fore opening (32j) and axially overlapping the peripheral wall (32j2) of the hub (32b), the gap (G) having a fore gap inlet (G1) between the portion of the housing (34) and the peripheral wall (32j2) of the hub (32b).