High lift device for boat propulsion comprises hollow cylindrical body comprising internal and external compartments with suction zones in external wall of second compartment for inducing fluid inside body

摘要

The device comprises a hollow cylindrical body (3) which extends along a longitudinal axis and comprises suction zones (7,8) and suction means (9) for inducing fluid inside the body. The body comprises internal (14) and external (15) compartments and the two suction zones are made in the external wall of the second compartment and the suction means are connected to the second compartment. An Independent claim is included for a boat comprising the device.