Gas micro-propulsion system

Abstract

The invention discloses a fuel gas micro-propulsion system which comprises an upper shell, an ignition assembly, a solid propellant storage chamber, a one-way pressure bearing assembly, a lower shell, a fuel gas filtering assembly, a one-way valve, a gas storage chamber, an electromagnetic valve, a spray pipe, a fuel gas channel and a gas conveying line. A solid propellant is stored in the solid propellant storage chamber, the fuel gas channel is arranged in the upper shell and the lower shell, and the gas transmission line communicates with the fuel gas channel and the fuel gas filtering assembly and enables the fuel gas filtering assembly, the one-way valve, the gas storage chamber, the electromagnetic valve and the spray pipe to communicate with one another. According to the gas micro-propulsion system, the micro-propulsion system which is small, high in specific impulse, continuous and adjustable in thrust and high in repeated ignition frequency is provided for micro-nano satellite application, and the requirement for multiple maneuvering formation in micro-nano satellite collaborative formation is met.

Description

technical field [0001] The invention belongs to the technical field of micro-nano satellites, and in particular relates to a gas-fired micro-propulsion system, which is used for attitude control and orbit transfer of micro-nano satellites. Background technique [0002] As the technology of micro-nano satellites continues to mature and its application fields continue to expand, the constellation networking and formation flying of micro-nano satellites have gradually attracted the attention of countries all over the world. Therefore, the demand for micro-propulsion systems mounted on micro-nano satellites is becoming more and more urgent. First of all, with the reduction of the volume and weight of the satellite, it is necessary to reduce the volume and weight of each subsystem of the satellite. As a propulsion system equipped on a micro-nano satellite, it must first meet the overall volume and weight requirements of the satellite. Secondly, the development and application of...

AI Technical Summary

Problems solved by technology

However, due to the limitations of the current processing technology, the chemical micro-propulsion system still has great shortcomings in terms of thrust adjustment and propellant combustion temperature control.

In recent years, the application of micro-electro-mechanical systems (MEMS) technology has enabled the comprehensive development of chemical micro-propulsion systems, but there are still problems that cannot be repeatedly ignited and the thrust is small and discontinuous, which is difficult for engineering applications

Therefore, the conventional micro-propulsion system in the prior art is difficult to meet the needs of multiple mobile formations in the micro-nano-satellite cooperative formation

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