A self-correcting thrust hydrazine propulsion method

Abstract

The invention relates to a self-correcting thrust hydrazine propulsion method. The gas output from the high-pressure gas cylinder is decompressed by a pressure reducer, and then input to a propellant storage tank through a proportional regulating valve, and the propellant in the propellant storage tank is pushed into the hydrazine. The engine is used to generate kinetic energy; the combustion chamber pressure transmitter sends the detected combustion chamber pressure signal to the signal conditioning module; the signal conditioning module outputs the control voltage after conditioning the combustion chamber pressure signal to control the proportional regulating valve. The structure of the invention is simple, stable and precise.

Description

technical field [0001] The invention relates to a single-component hydrazine propulsion method in a propulsion system in the aerospace field, specifically a hydrazine propulsion method. Background technique [0002] In the field of aerospace, hydrazine thrust systems are widely used in the attitude and orbit control of satellites, launch vehicles, spaceships and other aircraft. With the precise guidance of missiles, returnable spacecraft, recoverable rockets and other new requirements and high-precision requirements, the requirements for hydrazine propulsion devices are becoming more and more stringent. The general working method of the hydrazine propulsion device is that the propellant in the storage tank is pushed into the hydrazine thruster by high-pressure inert gas, and the propellant is catalytically decomposed in the hydrazine thruster to generate high-temperature and high-pressure gas to realize the thrust function. The size of the thrust Proportional to the flow of...

AI Technical Summary

Problems solved by technology

[0006] At present, in order to increase the thrust accuracy of the hydrazine propulsion device, the following methods are generally adopted. One is to increase the strength of the hydrazine catalyst in the thruster and reduce damage. At present, no catalyst that is not damaged during use has not been developed; the second is to use the propellant to directly Flow control methods, such as pump suction, pump suction can not meet the small flow hydrazine propulsion device

To sum up, the inability to provide a stable propellant flow supply for the thruster will directly lead to the inability of the entire thrust system to provide accurate thrust, which will affect the orbit control accuracy of rockets, spacecraft, etc.

Images