Patent ID: 7026738
Filing Date: 2006-04-11
Classification: B63H,H02K

Abstract:
1. In combination with a source of DC electrical energy, a homopolar motor comprising; an outer housing having opposite axial ends; a magnetic shield internally fixed to the housing enclosing a magnetic field therein between said axial ends thereof; a pair of radially outer rotor drums rotationally supported within said magnetic field; a pair of radially inner rotor drums rotationally supported within the radially outer rotor drums; permanent magnet means positioned within the radially inner rotor drums for establishing said magnetic field; brush means for establishing electrical contact between said source of DC electrical energy and the rotor drums to impart contrarotation of each of said pairs of the rotor drums relative to the permanent magnet means; and coaxial propulsion drive shafts respectively connected to each of the rotor drums within the housing and extending axially outside of the housing from said opposite axial ends thereof.