PROPELLER DUCT FOR THE REDUCTION OF UNDERWATER RADIATED NOISE

摘要

Propeller is flowed through by the fluid of reduction concentration The present invention reduces pressure change and effectively reduces radiated noise under water again when Ship Propeling, is passed through. By reducing underwater radiation noise, the case where warship that silencer meets environmentally friendly efficiency hull and trusted follower's performance simultaneously improves the propulsive performance of ship, pass through the addition for improving the prerotation stator of function of flow of water electric current. ;The 2014 of copyright KIPO submissions