Air release device for ramjet

Abstract

The invention belongs to the technical field of engines and particularly relate to an air bleeder for a ramjet. The air bleeder is of an annular structure. An air discharge port is formed in the outer circumferential surface of the air bleeder. The diameter of the outer circle of the air bleeder is equal to the diameter of the outer circle of the ramjet. The rear end of the air bleeder is fixedly connected with a booster. The front end of the air bleeder is connected with the tail portion of the ramjet. The air bleeder is simple in structural design and easy to obtain; through the structural design of the air bleeder, the pressure of a channel in the ramjet is effectively lowered in the operation process of the booster, so that the structure load is relieved, and the weight of the ramjet is reduced; the air bleeder and the booster structure can be formed in an integrated mode, so that a connecting structure is omitted, and the reliability is improved; in addition, after the operation process of the booster is ended, the air bleeder is separated from the booster, and therefore the extra weight of the ramjet is not increased.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a deflation device for a ramjet engine. Background technique [0002] Due to the characteristics of its own performance, the ramjet needs the solid rocket booster (hereinafter referred to as the booster) to accelerate to a certain flight speed before it can start working. [0003] When the booster is connected to the ramjet, if the nozzle outlet of the ramjet is completely blocked by the booster and no measures are taken, the pressure in the channel of the ramjet will increase sharply with the increase of the flight speed during the working process of the booster , which increases the flight resistance of the engine, and also causes a large pressure oscillation, which makes the structure of the ramjet engine bear more severe loads, and the pressure generated in this process is much greater than that generated when the ramjet engine works alone after the transfer stage...

AI Technical Summary

Problems solved by technology

[0003] When the booster is connected to the ramjet, if the nozzle outlet of the ramjet is completely blocked by the booster and no measures are taken, the pressure in the channel of the ramjet will increase sharply with the increase of the flight speed during the working process of the booster , which increases the flight resistance of the engine, and also causes a large pressure oscillation, which makes the structure of the ramjet engine bear more severe loads, and the pressure generated in this process is much greater than that generated when the ramjet engine works alone after the transfer stage pressure

[0004] In order to solve the above problems, there are two commonly used methods: one is to design a protective cover at the intake port of the air intake to prevent the airflow from entering the inner channel of the engine. Therefore, an additional set of separation devices is required, resulting in complex structures and increased risks

Images