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A cantilever load-bearing device for combined nozzles

A technology of cantilever and load-bearing frame, which is applied in the direction of jet propulsion device, machine/engine, etc., and can solve the problems of insufficient strength and rigidity of the intermediate adjustment plate

Active Publication Date: 2021-09-10
AECC SICHUAN GAS TURBINE RES INST
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Problems solved by technology

[0004] In view of this, an embodiment of the present disclosure provides a cantilever load-bearing device for a combined nozzle, which is specifically a cantilever load-bearing frame for an intermediate adjustment plate used for variable-state adjustment of a parallel combined nozzle of a turboramjet combined engine Structure, by optimizing the force transmission path to solve the problem of insufficient strength and rigidity of the intermediate adjustment plate, to meet the modal conversion function requirements of the turbo-ramjet combined engine

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  • A cantilever load-bearing device for combined nozzles
  • A cantilever load-bearing device for combined nozzles

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Embodiment Construction

[0020] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0021] Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, a...

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Abstract

The invention provides a cantilever load-bearing device for combined nozzles, which includes a left load-bearing frame of the middle adjustment plate, a right load-bearing frame of the middle adjustment plate, a first The force transmission frame of the middle adjustment plate, the force transmission frame of the second middle adjustment plate and the force transmission frame of the third middle adjustment plate are fixedly connected to form the load-bearing frame matrix; the left force-bearing frame of the middle adjustment plate and the right load-bearing The bottom of the cone of the frame is provided with double lugs for fixed connection with the casing, and the bottom of the cone of the third intermediate adjustment plate force transmission frame is provided with a single lug for fixed connection with the casing. The invention adopts block-type force-bearing components to form a box-type frame structure, which can steplessly adjust the flow path of the nozzle through the hydraulic actuator, and bear and transmit the aerodynamic and thermal loads in various limit states, satisfying the use of the full envelope of the engine need.

Description

technical field [0001] The present disclosure relates to the technical field of aero-engine nozzle load-bearing structure design, in particular to a cantilever load-bearing device for a combined nozzle. Background technique [0002] The combined turbo-ramjet engine is an ideal power source for future reusable near-space high-speed combat aircraft. Among them, the working mode conversion between the turbine and the ramjet is an important and difficult technology in the development of the turboramjet combination engine. In order to ensure that the nozzle thrust coefficient and the total pressure recovery coefficient meet the requirements within the full envelope, the future high-altitude high Mach number turboramjet combination engine It is necessary to adopt an adjustable middle adjustment plate structure. The outer profile of the middle adjustment plate is tapered. Due to space constraints, the cam adjustment structure can only be arranged at the front end of the frame, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K1/15F02K1/78F02K1/00
CPCF02K1/002F02K1/15F02K1/78
Inventor 许光伟蒲永彬杨亚雄余祖潮母鸿瑞王恒廖华琳谢龙
Owner AECC SICHUAN GAS TURBINE RES INST
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