FUEL METERING DEVICE PROTECTED AGAINST ICING

The invention relates to a fuel metering device (12-1) comprising a mobile element (22) comprising at least one fuel passage section (32) opening upstream toward a fuel supply duct and opening downstream toward a usage duct via a metering slot (34) of flared profile having a narrow passage section and a broad passage section, the mobile element being able to be moved with respect to a fixed element (24) between a low-flow-rate position in which the metering slot is to a large extent obstructed and a high-flow-rate position in which the metering slot is to a large extent uncovered, the metering slot being made in the fixed element or in the mobile element and its obstruction being achieved by the covering of the slot by a wall of the mobile element or of the fixed element. The metering device further comprises means (40) for at least partially obstructing the narrow passage section of the metering slot when the metering device is in the high-flow-rate position, without ever obstructing the broad passage section. The invention is also aimed at an aircraft engine fuel supply circuit comprising such a metering device.