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Air bleeder for ramjet

A technology of ramjet engine and deflation device, which is applied in the direction of ramjet engine, mechanical equipment, etc., can solve the problems of increasing engine flight resistance, pressure oscillation, complex structure, etc., and achieves the convenience of flight attitude control, lightening structural load, and structural design simple effect

Active Publication Date: 2014-05-21
BEIJING POWER MACHINERY INST
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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

Method used

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  • Air bleeder for ramjet
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Embodiment Construction

[0021] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present invention.

[0022] Such as figure 1 , figure 2 As shown, the technical solution for the specific implementation of the present invention is: a kind of deflation device for ramjet, the deflation device 2 is an annular structure, and a deflation port is opened on the outer peripheral surface of the deflation device 2, so The outer diameter of the deflation device 2 is the same as the outer diameter of the ramjet 1;

[0023] The connection relationship is that: the rear end of the deflation device 2 is fixedly connected with the booster 3 , and the front end of the deflation device 2 is connected with the tail of the ramjet 1 .

[0024] The deflation openings on ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K7/10
Inventor 张晓航李立翰郑日恒何保成王登云程恒星
Owner BEIJING POWER MACHINERY INST
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