A binary vector nozzle

A technology of vector nozzles and nozzles, which is 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., so as to make up for the stealth The effect of functional defects, good stealth ability, and simple structure

Active Publication Date: 2016-03-30
AECC SHENYANG ENGINE RES INST
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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 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

Method used

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  • A binary vector nozzle
  • A binary vector nozzle
  • A binary vector nozzle

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Embodiment

[0032] A binary vector nozzle is mainly composed of a circular and square cylinder body 1, a convergence section adjustment mechanism, an expansion section adjustment mechanism, a central blocking member, a side wall 7 and a nozzle casing 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 section adjustment mechanism is mainly composed of a synchronous actuator 2 , a first 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 front end is connected to the outer wall of the circular cylinder 1 through a mechanical connection, and the rear end is connected to the first linkage mechanism 3 through a rotating pair; the front end of the convergence adjustment plate 4 Connected to the circular cylinder body 1 through a rotating ...

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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 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 binary vector nozzle that does not affect the adjustment range of the throat area of ​​conventional binary vector nozzles and has good stealth capabilities. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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