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Throat deviated pneumatic vectoring nozzle based on fluid oscillator principle

A vector nozzle and oscillator technology, which is applied in the field of throat-offset aerodynamic vector nozzles to achieve the effect of small performance reduction, improved maneuverability and small loss

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

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Problems solved by technology

Traditional throat offset aerodynamic vector nozzles can only produce vectors in one direction, such as the pitch direction

Method used

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  • Throat deviated pneumatic vectoring nozzle based on fluid oscillator principle
  • Throat deviated pneumatic vectoring nozzle based on fluid oscillator principle
  • Throat deviated pneumatic vectoring nozzle based on fluid oscillator principle

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Embodiment Construction

[0025] 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 based on a fluid oscillator principle. The throat deviated pneumatic vectoring nozzle comprises an inner runner of the nozzle. The inner runner of the nozzle is of a fluid oscillator structure for adjusting an off-course vector angle direction; the fluid oscillator structure comprises an oscillating cavity and a spoiler, the oscillating cavity is arranged close to a throat I, the spoiler is mounted in the central position at the outlet of the throat II in a deviated manner and the head of the spoiler is located in the oscillating cavity, and the tail end of the spoiler arranged extending out of the throat II; when the spoiler deviates relative to axis of symmetry of the inner runner of the nozzle, an air flow flowing through the inner runner of the nozzle generates asymmetrical air flow extrusion in the oscillating cavity under the influence of the spoiler deviated downstream to form asymmetrical eddies. At the moment, an off-course direction vector is generated by virtue of the spoiler, so that the off-course vector angle direction of the nozzle is adjusted; therefore, the nozzle can generate the off-course vector angle and adjust the off-course vector angle.

Description

technical field [0001] The invention relates to a throat offset aerodynamic vectoring nozzle capable of realizing pitch and yaw control, which is mainly used for thrust vectoring aeroengines, high mobility missiles and other propulsion systems requiring vector thrust. 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. How to effectively generate vector thrust to complete the control of aircraft pitch and yaw has become the focus and hot spot of research in various countries. 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. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K1/00
CPCF02K1/002
Inventor 黄帅徐惊雷汪阳生
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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