Novel two-dimensional vector nozzle

A vector nozzle, a new type of technology, applied in the direction of jet propulsion devices, machines/engines, etc., can solve the problems that the front-end hot-end components cannot be blocked, affect the adjustment range of the nozzle throat, and affect the operating point of the engine, etc., to achieve the stealth function Flaws, good invisibility, simple structure effects

Active Publication Date: 2014-09-10
AECC SHENYANG ENGINE RES INST
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the internal hollow structure of the traditional aero-engine binary vector nozzle, it cannot effectively shield the front-end hot-end components, resulting in very weak stealth capabilities
The conventional binary plug vector nozzle only

Method used

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  • Novel two-dimensional vector nozzle
  • Novel two-dimensional vector nozzle
  • Novel two-dimensional vector nozzle

Examples

Experimental program
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Effect test

Embodiment

[0032] A new binary vector nozzle mainly consists of a circular and square cylinder body 1, a convergent section adjustment mechanism, an expansion section adjustment mechanism, a central blocking member, a side wall 7 and a nozzle cover 11. Specifically:

[0033] The front end of the circular cylinder body 1 is connected with the engine as the supporting member of the whole nozzle.

[0034] The convergence adjustment mechanism is mainly composed of a synchronous actuator 2 , a link mechanism 3 and a convergence adjustment plate 4 . Among them, the synchronous actuator 2 is arranged along the direction of the axis of the rotating shaft of the adjustment plate. The pair is connected to the round and rotating square cylinder 1, the link mechanism 3 is arranged along the direction of the axis of the adjustment plate shaft, the other end is connected to the middle section of the outer side of the convergence adjustment plate 4 through the rotating pair, and the synchronous actuat...

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Abstract

The invention provides a novel two-dimensional vector nozzle which comprises a round-to-square barrel, synchronous actuators, link mechanisms, a contracting adjustment plate, vector actuators, link mechanisms, side walls, an extension adjustment plate, two-dimensional shield swirling center body structures, a bracket and a nozzle enclosure. The round-to-square barrel serves as a support member of the whole nozzle, the synchronous actuators, the link mechanisms, the contracting adjustment plate, the vector actuators, the link mechanisms and the extension adjustment plate serve as a main carrying capacity adjustment mechanism to achieve throat adjustment, outlet area adjustment and vector deflection, and the two-dimensional shield swirling center body structure is used for shielding a hot end member at the front end of the nozzle. The nozzle has the advantages that an adjusting range of a throat area of the conventional two-dimensional nozzle is not influenced, and the nozzle has good invisibility, a defect of the conventional two-dimensional vector nozzle in an invisibility function is overcome, and the nozzle has the advantages of simple structure and high reliability.

Description

technical field [0001] The invention belongs to the field of aeroengine nozzles, and relates to a novel binary vector nozzle. Background technique [0002] Due to the internal hollow structure of the traditional aero-engine binary vector nozzle, it cannot effectively shield the front-end hot-end components, resulting in very weak stealth capabilities. The conventional binary plug vector nozzle only adds a closed center body at the center of the nozzle, but due to the large cross-sectional area of ​​the closed center body, it seriously affects the adjustment range of the throat area of ​​the nozzle, thus affecting operating point of the engine. Therefore, in order to make up for the defects of conventional binary vector nozzles and conventional binary plug-type vector nozzles, it is necessary to design a new type of binary vector nozzles that does not affect the throat area adjustment range of conventional binary vector nozzles and has good stealth capabilities. . Content...

Claims

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Application Information

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IPC IPC(8): F02K1/16F02K1/82
Inventor 任利锋赵春生金文栋
Owner AECC SHENYANG ENGINE RES INST
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