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Throat deviated pneumatic vectoring nozzle with lateral expansion

A lateral expansion, vectoring nozzle technology, applied in the field of vectoring nozzles, can solve the problems of unsatisfactory nozzle thrust coefficient and vector angle, and achieve the effect of good work stability

Active Publication Date: 2017-06-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The side walls of the traditional throat offset aerodynamic vectoring nozzle are parallel and straight walls, and the thrust coefficient and vector angle of the nozzle are not ideal under the condition of high falling pressure ratio

Method used

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  • Throat deviated pneumatic vectoring nozzle with lateral expansion
  • Throat deviated pneumatic vectoring nozzle with lateral expansion
  • Throat deviated pneumatic vectoring nozzle with lateral expansion

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Embodiment Construction

[0032] 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. Relative arrangements of components and steps are set forth in these embodiments unless specifically stated otherwise. Expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for the convenience of description, the sizes of th...

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Abstract

The invention discloses a throat deviated pneumatic vectoring nozzle with lateral expansion. The nozzle comprises an inner runner of the nozzle. The inner runner of the nozzle comprises a nozzle inlet, a throat I, a throat I front convergence portion between the nozzle inlet and the throat I, a throat II and a throat II front expanding convergence portion between the throat I and the throat II, wherein the throat I front convergence portion and / or the throat II front expanding convergence portion has lateral expanding sections in width, and the outlet width of the throat II is greater than the inlet width of the nozzle. Therefore, the vector and non-vector properties of the nozzle are improved under the circumstance of not changing the section height of the throat II, that is, the thrust coefficient and the vector angle property of the nozzle are improved.

Description

technical field [0001] The invention relates to a vectoring nozzle, in particular to a throat offset pneumatic vectoring nozzle with lateral expansion. Background technique [0002] With the development of science and technology and the improvement of actual demand, more and more thrust vectoring aeroengines will be used in future aircraft. The core of the thrust vectoring aeroengine to realize the thrust vectoring function is the thrust vectoring nozzle. The traditional mechanical thrust vectoring nozzle has complex structure, poor reliability and troublesome maintenance. Therefore, it is imminent to develop a thrust vectoring nozzle with simple structure, light weight and good maintainability. [0003] At present, the fluid thrust vectoring nozzle has gradually become the research focus and research focus of various countries due to its simple structure and light weight, and will enter engineering applications in the near future. [0004] The throat offset pneumatic vec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K1/30F02K1/78F02K1/82
CPCF02K1/30F02K1/78F02K1/82
Inventor 黄帅徐惊雷汪阳生
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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