A Report Assessing the Feasibility of a Submersible Motor Amphibious Thruster
Abstract
Ocean Systems Research, Inc. has completed a preliminary design of a novel thruster to be used as a propulsion system for the Marine Corp's Amphibious Assault Vehicle Propulsion System Demonstrator. The thruster would be used in an electric drive system. The system uses contrarotating axial flow impellers to develop a hydraulic head against an exit nozzle. The contrarotation is more efficient than single stage impellers and the outer diameter of each of the two stages can be smaller. Instead of complex contrarotating shafts and gears, the impellers are driven at the tips by independent electric motors each of 200 hp capacity. The motors are submersible having coated rotor and encapsulated stator. The bearings for the machine are on the outer diameter and they are water lubricated. They are of the deflection pad type. Some advantages of this machine over other electric drive systems are that it is much less complex and that its overall length is reduced.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1991
- Accession Number
- ADA238720