small thrust rocket engine

Abstract

The invention discloses a small-thrust rocket engine applied to aerospace vehicles, which comprises a fuel valve (1), an oxygen valve (2) connected with an injector (4), and transports kerosene and gaseous oxygen to the injector (4) respectively ; The tail of the injector (4) is provided with an electric igniter (3); the injector (4) is connected with the thrust chamber body (5); the thrust chamber body (5) is composed of a combustion chamber and a nozzle The electric spark generated by the igniter (3) directly ignites the propellant gas mixture near the injection surface of the injector (4), and the gas is discharged from the nozzle to generate thrust. The invention uses gas-oxygen / kerosene as a propellant, solves the environmental pollution problem of the existing toxic spontaneous combustion propellant engine, and achieves beneficial effects such as non-toxic, non-polluting, high performance, fast response, and adaptation to steady-state / pulse dual working modes. .

Description

technical field [0001] The invention relates to a small-thrust rocket engine for space launch vehicles and aircrafts. Background technique [0002] Small-thrust rocket engines for spacecraft require multiple starts, fast response, and steady-state / impulse dual working modes. At present, the vast majority of spacecraft bicomponent small-thrust rocket engines use toxic self-igniting propellants, and the bicomponent small-thrust rocket engines currently in service in my country are all toxic, liquid / liquid self-igniting propellant engines. These toxic spontaneous combustion propellants pose great hazards to the natural environment and human health during production, storage, transportation and use, and the manufacturing cost is also very high. In the context of increasing calls for environmental protection and human health maintenance, the use of toxic propellant propulsion systems has become more and more restricted. Non-toxic, non-polluting, high-performance, and cheap space...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the environmental pollution and human health problems caused by the use of toxic liquid / liquid spontaneous combustion propellant engines in the prior art, as well as the high costs in the production, storage, transportation and use of toxic spontaneous combustion propellant systems, the purpose of the present invention is to Provide a non-toxic small-thrust rocket engine for spacecraft

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