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A binary plug nozzle

A technology of plug-type nozzles and nozzles, which is applied in the direction of jet propulsion devices, machines/engines, etc., can solve the problems of harsh working environment of actuators, inconvenient maintenance, complicated hydraulic pipeline layout, etc., and achieve the realization of throat area Adjustment and vector deflection, easy maintenance, simple and reliable overall structure

Active Publication Date: 2017-09-29
AECC SHENYANG ENGINE RES INST
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  • Abstract
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Problems solved by technology

[0002] The binary plug nozzle can adjust the throat area of ​​the nozzle and realize vector deflection by moving the plug cone, but the control mechanism for moving the plug cone of the existing binary plug nozzle is set inside the plug cone, and the working environment of the actuator Poor, and the layout of the hydraulic pipeline is complicated, which is not easy to maintain

Method used

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  • A binary plug nozzle
  • A binary plug nozzle
  • A binary plug nozzle

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Embodiment 1

[0027] The present invention will be described in further detail below. see Figure 1 to Figure 8 , a binary plug nozzle, including a barrel 1, a converging section 2, a front section of the side wall 3, a rear section of the side wall 4, a plug cone 5, and a throat area control mechanism and a vector deflection control mechanism, wherein the throat area control The mechanism is composed of mounting base 6, actuator 7 and mounting base 8, and the vector deflection control mechanism is composed of mounting base 9, actuator 10, and driving arm 11. The above-mentioned control mechanisms are two sets, on the left and right sides of the nozzle Symmetrical arrangement.

[0028] Specifically:

[0029] 1) The quantity of cylinder 1 is 1 piece, and the hyperelliptic equation is used to realize the transition from circle to square, and the outlet aspect ratio is 3;

[0030] 2) The converging section 2 is connected to the cylinder body 1 by bolts, and the quantity is 2 pieces, which a...

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Abstract

A binary plug nozzle, including a cylinder body, a convergent section, a front section of a side wall, a rear section of a side wall, a plug cone, a throat area control mechanism and a vector deflection control mechanism, wherein the throat area control mechanism consists of a mounting seat, a Composed of moving cylinder and mounting seat, the vector deflection control mechanism is composed of mounting seat, actuator and driving arm; it is characterized in that: the convergent section and the front section of the side wall are fastened to the cylinder body, and the rear section of the side wall and the front section of the side wall are composed of The sliding pair can move forward and backward, and the plug cone is hinged on the rear section of the side wall. The invention has the advantages of simple and reliable overall structure of the nozzle, good working environment of the throat area and vector deflection control mechanism, easy maintenance, and effective realization of throat area adjustment and vector deflection to meet the needs of different working states of the engine.

Description

technical field [0001] The invention relates to the field of aero-engine design, in particular to the field of binary nozzle design. Background technique [0002] The binary plug nozzle can adjust the throat area of ​​the nozzle and realize vector deflection by moving the plug cone, but the control mechanism for moving the plug cone of the existing binary plug nozzle is set inside the plug cone, and the working environment of the actuator Poor, and the layout of the hydraulic pipeline is complicated, which is not easy to maintain. Contents of the invention [0003] The object of the present invention is to propose a binary plug nozzle with simple structure and capable of vector propulsion. [0004] The technical solution of the present invention is: a binary plug nozzle, including a cylinder body 1, a converging section 2, a front section of the side wall 3, a rear section of the side wall 4, a plug cone 5, a throat area control mechanism and a vector deflection control m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K1/08
Inventor 宁怀松杨深然
Owner AECC SHENYANG ENGINE RES INST
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