H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 17/26 (2006.01) B64G 1/40 (2006.01) F03H 1/00 (2006.01)
Patent
CA 2250915
A Hall effect plasma accelerator comprises an annular accelerating channel with a radial magnetic field applied across the channel between magnetic poles of opposite polarity. According to the invention, the magnetic poles are defined on bodies of material which are physically and magnetically separate. The accelerator may be used as a Hall effect thruster, producing a stream of ions deflected by appropriate adjustment of the magnetic fields, so as to produce thrust and steer a satellite or other vehicle. The channel, along which the ions are accelerated, is preferably flared outwardly at its open end to avoid erosion caused by the deflection. The adjustment of the magnetic fields is preferably achieved by dividing an outer magnetic pole, surrounding the channel, into separate sectors having individual coils. The invention allows greater freedom in selecting the dimensions of the thruster in general and of the magnetic system in particular, thereby improving thruster efficiency and allowing manufacture of thrusters having a wide variety of different shapes depending on the available space.
Cette invention concerne un accélérateur plasmique à effet de Hall comprenant un canal d'accélération annulaire. Un champ magnétique radial est appliqué à travers le canal entre des pôles magnétiques ayant des polarités opposées. Au lieu de relier ces pôles magnétiques par un matériau magnétique disposé autour de l'extrémité fermée du canal et formant un aimant unique, cette invention suggère de définir les pôles magnétiques sur des corps qui sont faits d'un matériau donné, et qui possèdent des caractéristiques magnétiques distinctes. Ce système permet d'avoir une plus grande liberté dans le choix des dimensions du propulseur en général, et du système magnétique en particulier. Il est ainsi possible d'améliorer l'efficacité des propulseurs et de fabriquer ces derniers selon une gamme étendue de formes différentes, en fonction de l'espace disponible.
Baranov Vladimir I.
Petrosov Valery A.
Vasin Anatoly I.
Yashnov Yuri M.
International Scientific Products
Space Power Incorporated
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