| 摘要 |
<p>A thrust generator which has a structure wherein a helical thrust duct (2) is rotatably supported inside a hollow portion of a superconductive magnet (1) of a solenoid coil type, positive and negative electrodes (8 and 9) are so bonded to the inner surface of the thrust duct (2) as to permit the flow of an electromagnetic fluid (10) such as sea water, and electric current is supplied from a current feeder (3) to the electromagnetic fluid (10) inside the thrust duct (2) so as to generate a Lorentz force F with a magnetic field. The electromagnetic fluid (10) flows into the thrust duct (2) through an opening (6a) at the inlet end portion (6), receives continuously the Lorentz force F inside the thrust duct (2), is accelerated by this force F, and is jetted outside from an opening (7a) at the outlet end portion (7). The reaction of the jet force becomes a thrust. The Lorentz force F is also generated in each element of the current feeder (3) by the magnetic field B generated by the superconductive magnet (1) and the electrode current J flowing through each element, and rotates and drives the thrust duct (2). A fluid friction loss between the inner surface of the thrust duct (2) and the electromagnetic fluid (10) is reduced due to the rotation of the thrust duct (2). <IMAGE></p> |
