RADIO-FREQUENCY PLASMA GENERATING SYSTEM AND METHOD FOR ADJUSTING THE SAME

    公开(公告)号:WO2020254425A1

    公开(公告)日:2020-12-24

    申请号:PCT/EP2020/066793

    申请日:2020-06-17

    Applicant: THRUSTME

    Abstract: The invention concerns a radio-frequency plasma generating system comprising a radio-frequency generator (1) and a plasma source, the radio- frequency generator (1) being inductively or capacitively coupled to the plasma source through a resonant electric circuit (4), the radio-frequency generator (1) being adapted to receive direct current power from a direct current power supply (5) and for generating radio-frequency power at a frequency f, the radio-frequency power comprising a reactive radio-frequency power oscillating in the resonant electric circuit (4) and an active radio-frequency power absorbed by the plasma. According to the invention, the radio-frequency plasma generating system comprises means for measuring an efficiency of conversion E of direct- current power to active radio-frequency power absorbed by the plasma and means for adjusting the frequency f as a function of the measured efficiency of conversion E so as to maintain the efficiency of conversion E in a predetermined range within a RF plasma operational range.

    COLD GAS THRUSTER WITH SOLID PROPELLANT
    2.
    发明申请

    公开(公告)号:WO2021110841A1

    公开(公告)日:2021-06-10

    申请号:PCT/EP2020/084479

    申请日:2020-12-03

    Applicant: THRUSTME

    Abstract: The invention relates to a space cold gas thruster operating with a solid propellant. The cold gas thruster of the invention comprises a tank (1) suitable for containing a solid propellant and a tank (1) heating device suitable for sublimating said solid propellant and forming gaseous propellant, the tank (1) having an aperture (7) for transferring said gaseous propellant outside said tank (1), such as a nozzle (7). The invention also relates to a process for determining the amount of remaining propellant in the propellant tank (1) of a cold gas thruster of the invention.

    RÉSERVOIR DE PROPULSEUR AVEC SYSTÈME DE COMMANDE MARCHE-ARRÊT DU FLUX DE GAZ, PROPULSEUR ET ENGIN SPATIAL INTÉGRANT UN TEL SYSTÈME DE COMMANDE

    公开(公告)号:WO2020161434A1

    公开(公告)日:2020-08-13

    申请号:PCT/FR2020/050186

    申请日:2020-02-04

    Applicant: THRUSTME

    Abstract: L'invention concerne un réservoir (1) d'agent propulsif (2)solide ou liquide pour propulseur, le réservoir (1) comprenant des moyens pour former un gaz (9) dans le réservoir, le réservoir (1) comportant une ouverture (4) de surface S pour extraire du réservoir (1) un flux (20) du gaz d'agent propulsif. Selon l'invention, le réservoir (1) comporte un système de commande marche-arrêt du flux du gaz d'agent propulsif comprenant une grille (6) disposée face à l'ouverture (4) du réservoir (1), un premier système de régulation thermique (11, 21) adapté pour chauffer le gaz (9) dans le réservoir et un deuxième système de régulation thermique (12, 22) adapté pour chauffer la grille (6), la grille (6) comportant des orifices de surface totale supérieure à la surface S de l'ouverture du réservoir (1).

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