WAVE ANTICAVITATION PROPELLER Russian patent published in 2004 - IPC

FIELD: watercraft; transfer of liquids in pipelines.

SUBSTANCE: proposed propeller contains valve grid rigidly connected with displacement drive. Valves are installed on grid for closing its holes when being overlapped. Valve grid is made in form of disk with concentric holes arranged inside hydrodynamic ring, and valves are made in form of ring trimmings-valves, inner edges of each being fastened to grid along ring for radial overlapping by outer edges its adjacent ring trimmings-valves. Drive is made in form of shaft rigidly secured in center of disk in elastic coupling installed on thrust transmitting housing to provide possibility of its displacement along generatrices of conical surface with top in place of shaft fastening in elastic coupling without turning relative to its axis.

EFFECT: provision of wave anticavitation propeller with constant hydrodynamic thrust.

2 dwg