Hydrogen peroxide/kerosene rocket engine thrust chamber based on third fluid

Abstract

The invention discloses a hydrogen peroxide / kerosene rocket engine thrust chamber based on third fluid. The hydrogen peroxide / kerosene rocket engine thrust chamber comprises a propellant conveying device and a hydrogen peroxide catalytic igniter, wherein the propellant conveying device is connected with a propellant supply system and used for conveying kerosene and hydrogen peroxide into a combustion chamber; the hydrogen peroxide catalytic igniter is axially mounted at the front end of the combustion chamber and used for conveying high-temperature oxygen and water vapor into the combustion chamber, the hydrogen peroxide catalytic igniter and the kerosene conveyed into the combustion chamber are subjected to self-ignition combustion, after ignition is achieved, the kerosene and the hydrogen peroxide sprayed into the combustion chamber are continuously combusted, and the hydrogen peroxide catalytic igniter stops working; and when ignition needs to be conducted again, the hydrogen peroxide catalytic igniter is started again and closed after ignition. By using the hydrogen peroxide / kerosene rocket engine thrust chamber based on the third fluid, the problem that a high-thrust normal-temperature propellant hydrogen peroxide / kerosene rocket engine is repeatedly ignited and started for multiple times is solved, the purpose of achieving overall ignition of the rocket engine by catalyzing the small-flow hydrogen peroxide is further achieved, and thus the thrust-weight ratio is increased.

Description

【Technical field】 [0001] The invention belongs to the technical field of liquid rocket engines, in particular to a thrust chamber of a hydrogen peroxide / kerosene rocket engine based on a third fluid. 【Background technique】 [0002] Liquid rocket engine is an important foundation of launch vehicle power at present, and it has extremely important significance in space launch and deep space exploration. In order to further reduce the launch cost and increase the launch frequency, space launch puts forward new requirements for the reuse and convenience of rocket motors. Hydrogen peroxide and kerosene, as a pair of non-toxic propellants at room temperature, have the characteristics of high density specific impulse and easy storage, which can bring convenience in storage and filling, and greatly reduce the preparation time for launch; hydrogen peroxide can As a regenerative cooling medium, the combustion chamber and the nozzle are regenerated and cooled, and the high-temperature ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hydrogen peroxide / kerosene rocket engine thrust chamber based on the third fluid, which solves the problem of repeated ignition and starting of the hydrogen peroxide / kerosene rocket engine with high-thrust normal temperature propellant; The flow of hydrogen peroxide is used to achieve the purpose of the overall ignition of the rocket engine, which can significantly increase the thrust-to-weight ratio

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