UNDERWATER JET PROPULSION SYSTEM

摘要

PURPOSE: A jet pump type propulsion is provided to increase propelling efficiency under the water and enable an underwater mover to balance by little radial noise and a torque balance. CONSTITUTION: A duct(30) surrounds each rotating piece of a rotating wing(10), having a fine interval between the end of the piece and the inside of the duct. The end of each fixing piece in a fixing wing(20) is fixed to the rear end of the duct. Thus, inlet flux from the rotating wing is adjusted by the inverse flux of an underwater mover to suppress cavitation. Therefore, radial noise from the rotating wing is remarkably reduced.