6 results about "Electron heating" patented technology

The present invention relates to a spacecraft electric thruster particularly suitable for both propellant-fed and air-breathing electric space propulsion comprising an ionization chamber (11) for plasma generation which develops along a central development axis (X), wherein the ionization chamber (11) has a chamber inlet (12) configured to allow gas inflow and a chamber outlet (13) configured to allow extraction of ionized gas particles; a power injection assembly (30) configured to perform electron heating for plasma generation inside the ionization chamber (11); a magnetic assembly (20) configured to generate a magnetic field for plasma confinement in the ionization chamber (11); and an ion extraction and acceleration assembly (40) configured to extract ionized gas particles from the ionization chamber (11) through the chamber outlet (13) and accelerate them along an ion acceleration direction (Z), wherein the power injection assembly (30) comprises a microwave power delivery system (31) configured to deliver an electric field oscillating at a selected microwave frequency (f) and to inject the generated oscillating electric field in the ionization chamber (11), and wherein the ionization chamber (11) comprises a plurality of walls (11a, 15,16,41) closed to the passage of microwaves apart from a portion of at least one lateral wall (11a) of the plurality of walls (11a, 15,16,41) at which the power delivery system (31) is coupled to inject the generated oscillating electric field in the ionization chamber (11), and is resonant for electromagnetic fields oscillating at the selected microwave frequency.

Systems and methods to facilitate the formation and maintenance of FRCs with excellent stability and particle, energy, and flux confinement, and more particularly, systems and methods to facilitate the formation and maintenance of FRCs with elevated system energy and improved support using neutral beam injection and high-harmonic fast-wave electron heating.

The present application relates to an electron gun, which has a cathode having an electron emission surface, a planar shape of which is circular, and which emits electrons, a heater which warms the cathode, and an anode which applies a positive potential to the cathode and extracts the electrons in a certain direction. The cathode has a through-hole along a central axis of the cathode in a central portion thereof, and at least one of an opening edge portion of the through-hole on the electron emission surface side and an inner surface of the through-hole has a non-emission layer, or the opening edge portion of the through-hole on the electron emission surface side is a chamfered C face or a chamfered R face.

The present invention provides an electronically heated solid working fluid anode, a heating method, and a Hall thruster, comprising: a distributor, a solid working fluid, a spring, a base, and a pressure plate; the distributor and the base are connected and enclosed to form a housing space, in which the solid working fluid, the spring, and the pressure plate are installed; one side of the solid working fluid is tightly attached to the distributor, and the pressure plate is provided on the other side, with the spring provided between the pressure plate and the base; the solid working fluid is heated and sublimated into a gaseous state by the heat generated by electrons emitted by a hollow cathode bombarding the solid working fluid anode. The present invention integrates the storage and flow control modules of the solid working fluid with the anode, and uses an electron bombardment heating method to achieve working fluid sublimation, eliminating the need for additional working fluid storage, flow control modules, and heating modules, significantly increasing the storage density of the working fluid and greatly simplifying the design of the Hall electric propulsion system.

The present invention provides an electronic heating atomization device with a multi-channel liquid supply, comprising an outer shell, an inner shell, and an atomization core. The outer shell is provided with a liquid storage structure, and the atomization core includes a first liquid guide, a second liquid guide, and a heating element. The first liquid guide includes two first ends and a first main body; the second liquid guide includes a second main body; the first liquid guide and the second liquid guide are separate and independent entities, with the second main body in contact with the first main body; or the first liquid guide and the second liquid guide are integral, with the second main body connected to the first main body. The electronic heating atomization device includes a first liquid guide and a second liquid guide. The second liquid guide can be provided in a location where the first liquid guide is insufficient. The first liquid guide, which functions as a liquid conductor, corresponds to a first liquid supply channel for conducting liquid to the heating element. The second liquid guide, which functions as a liquid conductor, corresponds to a second liquid supply channel for conducting liquid to a location where the first liquid guide is insufficient.

The present invention relates to an electron gun and a method for manufacturing the same, the electron gun comprising: a cathode which has an electron emission surface, has a circular planar shape, and emits electrons; a heater for raising the temperature of the cathode; and an anode for applying a positive potential to the cathode and leading out electrons in a certain direction. The cathode has a through-hole in the center portion thereof along the center axis of the cathode, and has a non-emission layer on at least one of the opening edge portion of the through-hole on the electron emission surface side and the inner surface of the through-hole, or the opening edge portion of the through-hole on the electron emission surface side is a chamfered C-surface or a chamfered R-surface.