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Series turbine/bimodal ramjet combined engine modal conversion device

A turbine engine and mode conversion technology, which is applied in the direction of combined engine, ramjet engine, turbine/propulsion device air intake, etc., to reduce the difficulty of implementation and reduce the number of components

Pending Publication Date: 2021-02-12
BEIJING POWER MACHINERY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to design a modal transformation scheme of a series turbine / dual-mode ramjet combination engine, which can effectively reduce the structural complexity and implementation difficulty of the modal transformation device

Method used

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  • Series turbine/bimodal ramjet combined engine modal conversion device
  • Series turbine/bimodal ramjet combined engine modal conversion device
  • Series turbine/bimodal ramjet combined engine modal conversion device

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Embodiment Construction

[0028] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 2 , image 3 As shown, the modal conversion of a serial turbine / dual-mode ramjet combination engine provided by the present invention includes an adjustable partition device 3, an adjustable intake cone device 4, and an adjustable intake cone device equipment compartment 7;

[0030] Wherein, the adjustable intake cone device 4 includes a high-speed channel pre-compression surface 5, an adjustable intake cone 6, and an adjustable intake cone threaded rod 8;

[0031] The adjustable partition device 3 is a cylindrical structure and is located inside the low-speed turbine channel 1 (that is, the turbine engine channel) of the turbo / dual-mode ramjet combined engine;

[0032] The high-speed channel p...

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Abstract

The invention relates to a series turbine / bimodal ramjet combined engine modal conversion device, and belongs to the technical field of turbine / bimodal ramjet combine engines. According to the seriesturbine / bimodal ramjet combined engine modal conversion device, the position of an air inlet cone device is adjusted through mechanical transmission of a threaded rod, and during modal conversion, incoming flow air is distributed through forward and backward movement of the adjustable air inlet cone device and stretching and retracting of a partition plate according to the flow continuous criterion, and a combined engine is controlled to work at high / low-speed channels. Modal conversion of the series turbine / bimodal ramjet combined engine is achieved through a simple mechanical structure, andcontinuous and stable power output of the engine under the Ma0-7 wide-area working condition is guaranteed. According to the series turbine / bimodal ramjet combined engine modal conversion device, theimplementation difficulty of modal conversion can be effectively reduced, and the number of components of a modal conversion system is reduced.

Description

technical field [0001] The invention belongs to the technical field of a combined turbine / dual-mode ramjet engine, and in particular relates to a mode conversion device for a serial turbine / dual-mode ramjet combined engine. Background technique [0002] The turbo / dual-mode ramjet combined engine, as an ideal power device for aerospace aircraft, can be used repeatedly in the range of Ma0-7, altitude 0-30km, and is a new research direction of aero-engines. It works in the low-speed channel below Ma2. The air enters the compressor through the intake port, and is combusted by the turbine engine combustion chamber to generate thrust; after accelerating to Ma2, the mode conversion is required, and the incoming air is guided to the high-speed channel, compressed into the dual-mode ramjet engine for combustion through the high-speed channel The tissue in the chamber burns, producing thrust. The turbine / dual-mode ramjet combination engine combines the advantages of zero-speed startu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K7/16F02C7/04F02C7/057
CPCF02K7/16F02C7/04F02C7/057
Inventor 田耕瑞任鑫高伟郭金鑫项林李松
Owner BEIJING POWER MACHINERY INST
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