Patents by Inventor Ane Aanesland
Ane Aanesland has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11060513Abstract: The invention relates to an ion thruster, comprising: a chamber, a reservoir, comprising a solid propellant (PS), housed in the chamber and comprising a conductive jacket provided with an orifice; means for forming an ion-electron plasma in the chamber, which means are able to sublime the solid propellant in the reservoir, then to generate said plasma in the chamber from the sublimed propellant coming from the reservoir through the orifice; a means for extracting and accelerating the ions and electrons of the plasma out of the chamber, which means comprises at least two grids at one end (E) of the chamber; a radiofrequency AC voltage source for generating a radiofrequency signal comprised between the plasma frequencies of the ions and of the electrons, arranged in series with a capacitor and connected, by one of its outputs and via this capacitor, to one of the grids, with the other grid being connected to the other output of said voltage source; said means for extracting and accelerating and said voltageType: GrantFiled: August 30, 2016Date of Patent: July 13, 2021Assignees: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Dmytro Rafalskyi, Ane Aanesland
-
Patent number: 10233912Abstract: A plasma thruster includes extraction of a stream of positive ions. The plasma thruster includes a single ionization stage; injecting ionizable gas for said ionization stage comprising injecting a first gas and an electronegative second gas; creating an RF electric field to cause the gases to ionize in the ionization stage creating a first zone called the hot zone, in the ionization stage; the first gas being distributed in the hot first zone, the second gas being distributed in a second zone less hot than said first zone; extracting a stream of negative ions and a stream of positive ions, these being both connected to the ionization stage; and the extraction of a stream of positive ions and the extraction of a stream of negative ions, ensuring that the thruster is electrically neutral.Type: GrantFiled: November 24, 2009Date of Patent: March 19, 2019Assignees: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Pascal Chabert, Ane Aanesland, Albert Meige, Gary Leray
-
Publication number: 20180216605Abstract: The invention relates to an ion thruster, comprising: a chamber, a reservoir, comprising a solid propellant (PS), housed in the chamber and comprising a conductive jacket provided with an orifice; means for forming an ion-electron plasma in the chamber, which means are able to sublime the solid propellant in the reservoir, then to generate said plasma in the chamber from the sublimed propellant coming from the reservoir through the orifice; a means for extracting and accelerating the ions and electrons of the plasma out of the chamber, which means comprises at least two grids at one end (E) of the chamber; a radiofrequency AC voltage source for generating a radiofrequency signal comprised between the plasma frequencies of the ions and of the electrons, arranged in series with a capacitor and connected, by one of its outputs and via this capacitor, to one of the grids, with the other grid being connected to the other output of said voltage source; said means for extracting and accelerating and said voltageType: ApplicationFiled: August 30, 2016Publication date: August 2, 2018Applicants: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Dmytro RAFALSKYI, Ane AANESLAND
-
Patent number: 9776742Abstract: A device for forming a quasi-neutral ion-electron beam, including: a chamber; a set of means for forming an ion-electron plasma in the chamber; and means for extracting and accelerating charged particles from the plasma out of the chamber. The particles are capable of forming the beam and the extraction and acceleration means that include a set of at least two grids located at one end of the chamber.Type: GrantFiled: April 14, 2015Date of Patent: October 3, 2017Assignees: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Dmytro Rafalskyi, Ane Aanesland
-
Publication number: 20170036785Abstract: A device for forming a quasi-neutral ion-electron beam, including: a chamber; a set of means for forming an ion-electron plasma in the chamber; and means for extracting and accelerating charged particles from the plasma out of the chamber. The particles are capable of forming the beam and the extraction and acceleration means that include a set of at least two grids located at one end of the chamber.Type: ApplicationFiled: April 14, 2015Publication date: February 9, 2017Applicants: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Dmytro Rafalskyi, Ane Aanesland
-
Patent number: 9398678Abstract: The invention relates to a method and device for forming a plasma beam. According to the invention: the quality of the electroneutrality of the plasma beam (PB) is detected (in 12 and/or 13); and the alternating polarization potentials of the extraction and acceleration grid (4) are adjusted such that the plasma beam (PB) is at least approximately electrically neutral.Type: GrantFiled: September 14, 2011Date of Patent: July 19, 2016Assignees: ASTRIUM SAS, ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Ane Aanesland, Pascal Chabert, Michael Irzyk, Stéphane Mazouffre
-
Publication number: 20130300288Abstract: The invention relates to a method and device for forming a plasma beam. According to the invention: the quality of the electroneutrality of the plasma beam (PB) is detected (in 12 and/or 13); and the alternating polarisation potentials of the extraction and acceleration grid (4) are adjusted such that the plasma beam (PB) is at least approximately electrically neutral.Type: ApplicationFiled: September 14, 2011Publication date: November 14, 2013Applicants: ASTRIUM SAS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE POLYTECHNIQUEInventors: Ane Aanesland, Pascal Chabert, Michael Irzyk, Stéphane Mazouffre
-
Publication number: 20110232261Abstract: A plasma thruster includes extraction of a stream of positive ions. The plasma thruster includes a single ionization stage; means for injecting ionizable gas for said ionization stage, said means comprising at least first means for injecting a first gas and second means for injecting an electronegative second gas; means for creating an RF electric field so as to cause the gases to ionize in the ionization stage, said means creating a first zone called the hot zone, in the ionization stage; the first gas being distributed in the hot first zone, the second gas being distributed in a second zone less hot than said first zone; first means for extracting a stream of negative ions and second means for extracting a stream of positive ions, these being both connected to the ionization stage; and the extraction of a stream of positive ions and the extraction of a stream of negative ions, ensuring that the thruster is electrically neutral.Type: ApplicationFiled: November 24, 2009Publication date: September 29, 2011Applicants: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Pascal Chabert, Ane Aanesland, Albert Meige, Gary Leray