propeller tip vortex cavitation inception speed control device

摘要

The present invention includes a plurality of suction surface mass ejection holes are arranged in the propeller rotation direction on the suction surface of the propeller blades and ejects the mass to the center of the suction surface tip vortex; A pressure plane mass ejection hole which is arranged in the propeller rotation direction on the pressure plane of the propeller blades and ejects mass to the center of the pressure plane tip vortex; A suction surface mass ejection hole control valve controlling mass ejection through the suction surface mass ejection hole; A pressure surface mass ejection control valve for controlling mass ejection through the pressure surface mass ejection hole; A mass storage tank having a mass heavier than air and storing a mass ejected through the suction surface mass ejection hole and the pressure surface mass ejection hole; It provides a propeller tip vortex cavitation superlative speed control apparatus comprising a; a suction pipe mass ejection hole and the pressure surface mass ejection hole and the mass storage tank connecting the mass storage tank, the mass movement tube being a movement passage of the mass. According to the present invention, the suction surface tip vortex generated on the suction surface of the propeller blades and the pressure surface tip vortex generated on the pressure surface of the propeller blades are simultaneously controlled to effectively delay the generation of the tip votex cavitation and thus the noise of the ship. And vibration can be minimized.