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Mass-loss-free electromagnetic thruster cavity based on electromagnetic field energy uneven distribution

An electromagnetic thrust, evenly distributed technology, used in thrust reversers, using plasma, machines/engines, etc., can solve problems such as directional changes, fluctuations in thrust magnitude, and unstable thruster operation, to ensure the stability of the resonance mode, The effect of high thrust

Active Publication Date: 2020-08-11
CHINA ACADEMY OF SPACE TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, provide an electromagnetic thruster cavity based on the uneven distribution of electromagnetic field energy, and apply the resonant cavity based on the uneven distribution of electromagnetic field energy in the field of electromagnetic thrusters for the first time, It solves the problem of unstable operation, fluctuation of thrust, and even directional change of this type of thruster

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  • Mass-loss-free electromagnetic thruster cavity based on electromagnetic field energy uneven distribution
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  • Mass-loss-free electromagnetic thruster cavity based on electromagnetic field energy uneven distribution

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but not as a limitation to the present invention.

[0027] like figure 1 The resonant cavity structure shown in the figure has a rectangular cavity cross-sectional structure, and the Y direction is set as the electromagnetic wave transmission direction. Formula (1) is the resonant frequency of the rectangular resonant cavity. For a rectangular cavity with a length of a, a width of b, and a height of l Resonant cavity, unfilled dielectric state, the resonant frequency of its TEmnp mode is:

[0028]

[0029] Among them, f 0 is the resonant frequency of the unfilled dielectric rectangular resonant cavity, m is the half-cycle number of the electromagnetic field along the cavity length a direction, n is the half-cycle number of the electromagnetic field alo...

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Abstract

The invention discloses a mass-loss-free electromagnetic thruster cavity based on electromagnetic field energy uneven distribution. The cavity comprises a resonant cavity, a medium material is mountedin the resonant cavity, the dielectric constant or magnetic conductivity of the medium material is larger than that of vacuum, an electromagnetic field of the resonant cavity partly enters the mediummaterial, the electromagnetic field energy is in uneven distribution in the medium material, the medium material can generate high-frequency mechanical oscillation on a microstructure under the effect of the electromagnetic field, a thruster structure does not need to use chemical fuel and working medium gas, plume influences do not exist, the weight is small, use is convenient, the property of aspacecraft can be greatly improved, and based on the technology, a new-theory spacecraft can be possibly generated.

Description

technical field [0001] The invention belongs to the field of thruster design and relates to a cavity of a quality-loss electromagnetic thruster based on the non-uniform distribution of electromagnetic field energy. Background technique [0002] Electromagnetic thruster is a new concept propulsion technology emerging in recent years. This technology uses the uneven distribution of microwaves in a resonant cavity with a specific structure to generate thrust. It is a revolutionary new technology that can greatly improve the performance of spacecraft, and may produce new concept spacecraft based on this technology. Chinese patent CN201610151427.0 relates to an electromagnetic thruster cavity based on a periodic structure, which has the problem of poor mode isolation. There are multiple resonance modes in a similar frequency range, which easily leads to mode competition and poor working stability. The resonant cavity is the key component of the electromagnetic thruster. Under th...

Claims

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Application Information

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IPC IPC(8): F03H1/00
CPCF03H1/0081
Inventor 陈粤张轫王灏宇刘正山王珏宫成王平华张金辉范杰刘丹
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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