A kind of preparation method of horizontal self-sealing micro-propeller

Abstract

The invention discloses a horizontal self-sealing micro-propeller and a preparation method thereof. The horizontal self-sealing micro-propeller is used for position keeping, posture control, orbit regulation and the like of a nanosatellite and a picosatellite and belongs to the fields of micropropulsion technologies and micro-electro-mechanical systems (MEMS). A combustion chamber of the propeller is sealed among the combustion chamber on a silicon substrate, an isolating layer and a glass sheet and is controllable in shape, the storage capacity of a propellant is large, and the contact area of an igniter is large, so that effects of the external environment on gunpowder are effectively avoided, the gunpowder is not easily affected with damp or leaked, the ignition speed is effectively increased, the ignition reliability is effectively improved, the energy density and launching speed during launching are increased, and the precision in a propulsion direction can be improved. The preparation method provided by the invention is rather mature at present and facilitates realizing mass production.

Description

Technical field: [0001] The invention relates to a horizontal self-sealing micro propeller and a preparation method thereof, which are used for position maintenance, attitude control and orbit adjustment of nano and pico satellites, and belong to micro propulsion technology and micro-electromechanical systems (MEMS, Micro-Electro- Mechanical System) field. Background technique: [0002] The thruster is an important actuator in aerospace technology. When working, it ejects the working substance (gas or ion) out of the nozzle at a high speed, and provides propulsion through the recoil of the ejection on the thruster and its carrier; In addition to the launch vehicle, the spacecraft is usually equipped with thrusters as a position and attitude control system. Miniaturization is an important trend in the development of spacecraft, especially the emergence of nano- and pico-level micro-satellites. Therefore, there is an urgent need for micro-propulsion systems suitable for micro...

AI Technical Summary

Problems solved by technology

At present, most of the micro-propellers use array propellers. The solid propellant capacity is limited by the small height of the silicon wafer, the thrust will not be very large, the propulsion direction is perpendicular to the propeller surface, and the energy density is low, making it difficult to achieve very Precise propulsion direction control

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