Patent ID: 8753429
Filing Date: 2014-06-17
Classification: B64D,Y10T

Abstract:
1. An aircraft fuel tank ventilation system, comprising a dehumidifying device disposed in flow communication between a vent open to the ambient atmosphere and a fuel tank, wherein the dehumidifying device includes a desiccant medium for removing water vapour from ambient air flowing from the vent towards the fuel tank, and the ventilation system further comprising a valve for directing a flow of air through the dehumidifying device for regenerating the desiccant medium, and an outlet for discharging the regenerative air that has passed through the desiccant medium to the ambient atmosphere, and wherein the valve is selectively openable and in its open position also provides the outlet, and the outlet is positioned aft of the vent such that forward movement of the aircraft creates a pressure differential between the vent and the outlet to drive the flow of regenerative air through the dehumidifying device.