PROPULSION ASSEMBLY FOR SHIP, COMPRISING A NACELLE FOR AN INSTALLATION UNDER THE CARINE OF THE VESSEL

摘要

The propulsion assembly (1, 1 ', 1' ') comprises at least one nacelle (2) connected to a support leg (3, 3', 3 "), a propeller (4) with at least two blades (14 ) located at the rear of the nacelle, and an arrangement of at least three fins (50 to 55, 3'A) which are fixed to the nacelle (2) .This arrangement of fins forms a crown (5). ) substantially perpendicular to the longitudinal axis (X) of the nacelle (2), which ring is comprised in an area (Zx) situated between the central part of the support leg (3, 3 ', 3 ") and the propeller . The assembly further comprises a nozzle (6) which at least partially surrounds the helix and said ring (5). The blades (14) each have an end with an edge (7) flush with the inner wall of the nozzle (6) for the propeller (4) is the rotor of a propeller pump.