Tapered plug mechanism realizing axial symmetry spray pipe all-direction vector regulation

An axisymmetric nozzle and plug cone technology, which is applied in the machine/engine, jet propulsion and other directions, can solve the problems of low infrared stealth ability, heavy weight, and many moving components of the axisymmetric vector nozzle, and achieve the realization of omnidirectional vector Adjustment, reduction in outline size, and the effect of fewer moving parts

Active Publication Date: 2013-12-04
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The central cone of the traditional axisymmetric plug nozzle is connected to the barrel of the nozzle through a fixed connection, while the realization of vector adjustment designs the barrel as two spherical segments, which are driven by the actuating system and the connecting mechanism. Segmented spherical segment realizes vector adjustment. The nozzle with this structure has a l

Method used

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  • Tapered plug mechanism realizing axial symmetry spray pipe all-direction vector regulation
  • Tapered plug mechanism realizing axial symmetry spray pipe all-direction vector regulation
  • Tapered plug mechanism realizing axial symmetry spray pipe all-direction vector regulation

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Embodiment 1

[0025] This embodiment provides a plug cone mechanism for realizing the omnidirectional vector adjustment of the axisymmetric nozzle, which is characterized in that: the plug cone mechanism for realizing the omnidirectional vector adjustment of the axisymmetric nozzle includes Rear section 2, support frame 3, first actuator 4, rotating rod 5, connecting rod 6 and second actuator 7;

[0026] Among them: the front section 1 of the plug cone and the rear section 2 of the plug cone form a central cone structure, the contact position of the front section 1 of the plug cone and the rear section 2 of the plug cone is a concentric spherical surface, and the two are connected by a rotating pair perpendicular to the axis of the nozzle , and connect the concentric spherical surface of the rotating pair passing through the front section 1 of the plug cone and the rear section 2 of the plug cone, which is used to realize the vector adjustment of the gas flow of the nozzle, and at the same t...

Embodiment 2

[0039] This embodiment provides a plug cone mechanism for realizing the omnidirectional vector adjustment of the axisymmetric nozzle, which is characterized in that: the plug cone mechanism for realizing the omnidirectional vector adjustment of the axisymmetric nozzle includes Rear section 2, support frame 3, first actuator 4, rotating rod 5, connecting rod 6 and second actuator 7;

[0040] Among them: the front section 1 of the plug cone and the rear section 2 of the plug cone form a central cone structure, the contact position of the front section 1 of the plug cone and the rear section 2 of the plug cone is a concentric spherical surface, and the two are connected by a rotating pair perpendicular to the axis of the nozzle , and connect the concentric spherical surface of the rotating pair passing through the front section 1 of the plug cone and the rear section 2 of the plug cone, which is used to realize the vector adjustment of the gas flow of the nozzle, and at the same t...

Embodiment 3

[0050] This embodiment provides a plug cone mechanism for realizing the omnidirectional vector adjustment of the axisymmetric nozzle, which is characterized in that: the plug cone mechanism for realizing the omnidirectional vector adjustment of the axisymmetric nozzle includes Rear section 2, support frame 3, first actuator 4, rotating rod 5, connecting rod 6 and second actuator 7;

[0051] Among them: the front section 1 of the plug cone and the rear section 2 of the plug cone form a central cone structure, the contact position of the front section 1 of the plug cone and the rear section 2 of the plug cone is a concentric spherical surface, and the two are connected by a rotating pair perpendicular to the axis of the nozzle , and connect the concentric spherical surface of the rotating pair passing through the front section 1 of the plug cone and the rear section 2 of the plug cone, which is used to realize the vector adjustment of the gas flow of the nozzle, and at the same t...

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PUM

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Abstract

The invention discloses a tapered plug mechanism realizing the axial symmetry spray pipe all-direction vector regulation. The tapered plug mechanism comprises a tapered plug front section, a tapered plug back section, a support frame, an actuator cylinder, a rotating rod, a connecting rod and an actuator cylinder, wherein the tapered plug front section and the tapered plug back section form a center taper structure, the sectional surfaces in the contact positions of the tapered plug front section and the tapered plug back section are concentric spherical surfaces, the tapered plug front section and the tapered plug back section are connected through a rotating pair vertical to the axial line of a spray pipe, in addition, the concentric spherical surfaces of the tapered plug front section and the tapered plug back section passed by the rotating pair are connected for realizing the vector regulation of the fuel gas flow of the spray pipe, meanwhile, the shielding effect on front end heat end components can be realized, the support frame is used as a support component of the center taper structure formed by the tapered plug front section and the tapered plug back section for connecting the center taper onto a tube body of the spray pipe, and the center taper realizes the vector rotation in an all-direction 360-degree range. The tapered plug mechanism has the advantages that the structure is simple, the moving components are few, the outline dimension of the traditional axial symmetry plug type spray pipe can be effectively reduced, and the all-direction vector regulation of the axial symmetry spray pipe can be realized.

Description

technical field [0001] The invention relates to the field of aeroengine nozzles, in particular to a plug cone mechanism for realizing omnidirectional vector adjustment of an axisymmetric nozzle. Background technique [0002] The central cone of the traditional axisymmetric plug nozzle is connected to the barrel of the nozzle through a fixed connection, while the realization of vector adjustment designs the barrel as two spherical segments, which are driven by the actuating system and the connecting mechanism. Segmented spherical segment realizes vector adjustment. The nozzle with this structure has a larger outer dimension and heavier weight. It is not easy to realize the engine with strict outer dimension requirements; while the traditional axisymmetric vector nozzle has many moving components and the control law It is more complicated, and because there is no shielding of the front-end hot-end component by the central cone, the infrared stealth ability of the axisymmetric ...

Claims

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Application Information

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IPC IPC(8): F02K1/78
Inventor 赵春生胡春晓任利锋
Owner AECC SHENYANG ENGINE RES INST
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