Anhydrous hydrazine and green dinitrogen tetroxide dual-mode propulsion system

The invention provides an anhydrous hydrazine and green dinitrogen tetroxide dual-mode propelling system which is characterized in that a first output end of a gas path pressurization module is connected with an oxidant storage box module, and a second output end of the gas path pressurization module is connected with a fuel storage box module; the output end of the oxidant storage box module and the output end of the fuel storage box module are both connected with a dual-mode 490N engine in the apogee orbital transfer module; and the output end of the apogee orbital transfer module is connected with the attitude control module. According to the dual-mode propelling system, the advantage of high specific impulse of a dual component and the advantages of high reliability and small thrust of a single component are fully utilized; and compared with a unified double-component propelling system, the system is lighter in dry weight, meanwhile, the utilization rate of a single-component propellant is high, an oxidiz