Dorade box

The Dorade - fan is a piece of equipment that is used to ventilate the interior of ships and yachts. This special fan prevents penetrates water into the vessel with the fresh air. It is named after the 1930 -built yacht Dorade, where he was employed for the first time. It was designed water separating fans from the American Rod Stephens.

Construction

The air flows through a rotating cowl vent (fan head) in an oblong box. The leading through the deck into the interior ventilation duct is not located directly under the scoop, but is laterally displaced and protrudes above the top deck addition. This " chicane ", which has to pass the air flow, it is achieved that the flow of air which has penetrated splash is deposited and thus does not enter the interior. Through small openings in the fan in the air scoop the separated water can flow to the deck.

Function

The air scoop is rotated in the (travel ) wind, so that fresh air is forced into the interior spaces. By using a second - dorado fan whose Lufthutzenstellung is rotated relative to the first by 180 ° and develops a suction effect for aerodynamic reasons, arises between the two fans in the ship's interior a desired air circulation.