A hall effect plasma thruster

F - Mech Eng,Light,Heat,Weapons – 03 – H

Patent

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Details

F03H 1/00 (2006.01) B64G 1/26 (2006.01) B64G 1/40 (2006.01) H05H 1/54 (2006.01)

Patent

CA 2250917

In a Hall effect thruster (3A), especially for use in manoeuvring satellites (1A), a stream or plume of ions, used to produce the thrust, is deflected, by appropriate adjustment of a magnetic field, so as to steer the satellite or other vehicle. The channel (20), along which the ions are accelerated, is preferably flared outwardly at its open end so as to avoid erosion which would otherwise be caused by the deflection. The adjustment of the magnetic field is preferably achieved by dividing an outer magnetic pole, surrounding the channel (20), into separate sectors and winding individual electric coils (18, 19) around the sectors. Control of the current through these individual coils (18, 19) is used to make the appropriate adjustments of the magnetic field.

Dans un propulseur plasmique à effet Hall (3A), destiné notamment à être utilisé dans la manoeuvre de satellites (1A), on fait dévier un courant ou panache d'ions, utilisé pour produire la poussée, par un réglage approprié d'un champ magnétique, de façon à diriger le satellite ou autre véhicule. Le canal (20), le long duquel est créée l'accélération d'ions, est de préférence évasé vers l'extérieur au niveau de son extrémité ouverte de façon à éviter l'érosion qui pourrait être provoquée par la déviation. On effectue de préférence le réglage du champ magnétique en divisant un pôle magnétique externe entourant le canal (20) en secteurs séparés et en enroulant les bobines électriques individuelles (18, 19) autour des secteurs. La régulation du courant traversant ces bobines individuelles (18, 19) permet d'effectuer les réglages appropriés du champ magnétique.

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