A hydrogen peroxide/kerosene rocket engine thrust chamber based on the third fluid

Abstract

The invention discloses a thrust chamber of a hydrogen peroxide / kerosene rocket engine based on a third fluid, comprising: a propellant conveying device connected with a propellant supply system for conveying kerosene and hydrogen peroxide into the combustion chamber. Hydrogen peroxide catalytic igniter, installed axially at the front end of the combustion chamber, is used to deliver high-temperature oxygen and water vapor into the combustion chamber, and kerosene delivered to the combustion chamber for self-ignition combustion, and after the ignition is achieved, kerosene and injected into the combustion chamber The hydrogen peroxide in the room continues to burn, and the hydrogen peroxide catalytic igniter stops working; when it is necessary to ignite again, start the hydrogen peroxide catalytic igniter again, and turn it off after ignition. Use the hydrogen peroxide / kerosene rocket engine thrust chamber based on the third fluid to solve the problem of repeated ignition of the high-thrust normal temperature propellant hydrogen peroxide / kerosene rocket engine; The purpose of the overall ignition of the rocket engine, thereby increasing the thrust-to-weight ratio.

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 ...

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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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