Helmet for pilot of aircraft e.g. weapon airplane or helicopter, has conduit permitting transmission of air flow from ventilation unit towards evacuation unit, where air flow cools evacuation unit by natural or forced thermal convection

摘要

The helmet has a dissipative equipment formed by an optical part (3), an LCD screen (4), and a light box (5), associated to a heat evacuation unit i.e. radiator (6). A conduit (11) permits transmission of air flow from a ventilation unit i.e. mechanical ventilator (7), towards the heat evacuation unit. Air flow is intended to cool the evacuation unit by natural or forced thermal convection. The ventilation unit is fixed on a protection shell formed by an external rigid layer (9) and a protection layer (10) at a level of an opening of the conduit.