Solid-liquid ignition engine multi-catalyzed starting main engine method and ignition control device

Abstract

The invention discloses a method for starting a main engine by a solid-liquid ignition engine through multiple times of catalysis and an ignition control device. The method comprises the steps that a catalytic ignition engine is mounted at a front combustion chamber of the main engine; the ignition control device is used for supplying hydrogen peroxide to the catalytic ignition engine and the main engine correspondingly, and ignition starting of the main engine of multiple times is realized through the catalytic ignition engine; the hydrogen peroxide is decomposed into oxygen and water under the effect of a catalytic bed after being introduced into the catalytic ignition engine, and a large amount of heat is released to form a high-temperature oxygen-enriched gas mixture; the high-temperature oxygen-enriched mixture enters a combustion chamber and reacts with a grain to generate high-temperature gas; the high-temperature gas enters the front combustion chamber of the main engine to enable the hydrogen peroxide introduced into the main engine to be decomposed; and the generated high-temperature gas ignites the grain in the main engine, and the main engine is ignited. The method is applicable to engines adopting various kinds of propellant combinations, starting is reliable, and the safety is good.

Description

Technical field [0001] The patent of the present invention belongs to the field of rocket engine starting, and relates to multiple starting of the rocket engine. Specifically, it is a method for catalyzing and starting the main engine multiple times by a solid-liquid ignition engine and its ignition control device. Solid-liquid catalytic ignition engine to ignite the main engine, suitable for multiple ignition start of solid-liquid rocket engine. Background technique [0002] The solid-liquid rocket engine adopts liquid oxidizer and solid fuel, and has the common characteristics of liquid rocket engine and solid rocket engine in structure. It has good safety, easy thrust adjustment, environmental protection, good grain stability, and low temperature sensitivity. It can be used for sounding rockets, target bombs, tactical missiles and so on. [0003] The early solid-liquid rocket engine used a self-igniting propellant combination of nitric acid oxidants, which was easy to achieve m...

AI Technical Summary

Problems solved by technology

Catalyst ignition is used, and the catalytic bed always maintains high temperature during the ignition process, which affects the service life of the catalytic bed; catalytic ignition, ignition delay is long, which is not conducive to improving combustion efficiency; for some propellants, such as 98% hydrogen peroxide, due to the limitation of catalytic bed materials , unable to directly catalyze the decomposition of 98% hydrogen peroxide

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