An intelligently controlled air-breathing electric propulsion system applicable to multiple fluid states
An intelligent control and control system technology, applied in the field of aerospace electric propulsion, can solve the problems of limiting the working life of satellites, limiting the payload, and increasing the difficulty of launching, so as to reduce the launch and operating costs, increase the payload, and meet the mission requirements. Effect
Active Publication Date: 2020-08-21
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
When the propellant used for drag compensation is exhausted, the satellite cannot continue to maintain orbit under the influence of aerodynamic drag and will deorbit and fall
Carrying too much propellant will not only limit the payload, but also increase the difficulty of launching
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[0040] The content of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0041] The application background of the present invention is an orbit at a height ranging from 50km to 250km, wherein the atmosphere in the lower part of the orbit is in a continuous flow state, the atmosphere in the higher part of the orbit is in a free molecular flow state, and the atmosphere in the middle section is in a transitional flow state. As the orbit increases, the density of the atmosphere decreases, and the working modes of different flow states are introduced respectively.
[0042]An intelligently controlled air-breathing electric propulsion system that can be applied to multiple fluid states is composed of an air inlet 1, an intelligent feedback booster system 2, a hybrid thruster system 4, a control system 5, and an energy supply system.
[0043] The configuration of the air inlet 1 is parabolic, including a front inlet and a r...
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The invention belongs to the field of aerospace electric propulsion technology, and discloses an intelligently controlled air-breathing electric propulsion system applicable to multi-flow states. The invention uses ultra-low orbit rare gas as a working medium for attitude control and resistance compensation propulsion. The present invention collects the gas into the intelligent feedback pressurization system through the parabolic air inlet, carries out intelligent feedback pressurization on the gas working medium by the molecular pump and the air pump and stores it in the working medium storage box to supply the seven sets of electric thrusters. The hybrid thruster system generates thrust, which can realize multiple thrust modes and achieve the purpose of attitude control and resistance compensation. The propulsion system has the advantage of being applicable to multi-fluid working environments such as 50km-250km ultra-low orbit continuous flow and free molecular flow, which can enable satellites to work stably for a long time in ultra-low orbit, and the efficiency of spaceborne equipment on this orbit will be greatly improved. Greatly improved, it has great development value in the fields of space weather, atmospheric model, earth electric field monitoring, earth remote sensing and so on.
Description
technical field [0001] The invention belongs to the technical field of spaceflight electric propulsion, and in particular relates to an intelligently controlled air-breathing electric propulsion system that can change orbits and can be applied to continuous flow and free molecular flow. Background technique [0002] With the development of aerospace technology, the space orbit is gradually saturated. The ultra-low orbit space area with an altitude of 50km-250km has high development potential for satellite work. The lower orbit altitude will greatly improve the efficiency of spaceborne equipment on this orbit. It can be used in space weather, atmospheric models, Fields such as geoelectric field monitoring and earth remote sensing have great development value. However, due to the existence of the thin atmosphere in ultra-low orbit, compared with the vacuum environment in high orbit, when the aircraft works in ultra-low orbit, it will produce aerodynamic resistance that attenu...
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IPC IPC(8): F03H1/00
CPCF03H1/0081F03H1/0087F03H1/0037F03H1/0012F03H1/0006
Inventor 吴必琦吴建军程玉强张宇李健谭胜欧阳杜忻洳
Owner NAT UNIV OF DEFENSE TECH