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air intake protection cover

An air inlet and protective cover technology, which is applied in the field of the shape of the air inlet protective cover, can solve the problems of increasing the stroke of the actuator and the difficulty of realization, and achieve the effects of increasing the volume, ensuring the tightness and increasing the stroke.

Active Publication Date: 2020-03-17
BEIJING AEROSPACE TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The protective cover with active power separation of the actuator is adopted. In the case of large air intake and protective cover, the stroke of the actuator will also increase accordingly. It is more difficult to realize in the case of limited space in the front body.

Method used

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...

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Abstract

The invention provides an air inlet protection cover. The air inlet protection cover is arranged on an air inlet entrance of an exposed air inlet, and the air inlet protection cover is of a ship typestructure and comprises a head and a tail; the head comprises an upper profile and a lower profile; the upper profile is attached to the lower surface of a front body; the tail is of a cavity structure composed of a lower profile; and the lower profile of the head and the lower profile of the tail are smooth transition. The air inlet protection cover solves the problems that jet particles of the air inlet scour a projectile body, the large-scale air inlet separation travel is too long, the structural strength requirement and the thermal protection requirement are high, and the travel of an actuator is difficult to achieve after the travel of the actuator is increased while the front body space is limited

Description

technical field [0001] The invention relates to the technical field of aircraft shape design, in particular to a shape of an air inlet protective cover. Background technique [0002] The air-breathing high-speed aircraft powered by a scramjet needs to be boosted and accelerated to a certain height and speed by a booster to realize engine ignition. During boost flight, if there are no protective measures inside the engine and the exhaust is not smooth, there will be serious pressure fluctuations, which may easily cause damage to the engine structure. By using the air inlet protective cover during the boost flight, it can avoid the structural damage caused by the airflow entering the engine flow channel. After the boost is reached to the engine ignition window, the air inlet protective cover is thrown away to realize the normal ignition of the engine. [0003] Traditional air-breathing high-speed aircraft usually adopt binary compression, axisymmetric compression and other ai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C7/055F02K7/14
CPCF02C7/055F02K7/14
Inventor 姜路野卢志毅韩刚强戴梧叶王胜一
Owner BEIJING AEROSPACE TECH INST
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