A Gas Generator with Wide Range Adjustable Flow and Temperature

A gas generator, a large-scale technology, applied in the combustion chamber, combustion method, combustion equipment and other directions, can solve the problems of poor ignition reliability and combustion stability of the gas generator, and achieve good operation effect, simple structure, and large-scale The effect of adjustment

Active Publication Date: 2020-09-15
XIAN AEROSPACE PROPULSION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical solution of the present invention is to provide a gas generator with adjustable flow rate and temperature in a wide range to solve the problem of poor ignition reliability and combustion stability of the gas generator when the temperature is low and the flow rate is small

Method used

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  • A Gas Generator with Wide Range Adjustable Flow and Temperature
  • A Gas Generator with Wide Range Adjustable Flow and Temperature

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0026] Such as figure 1 In this embodiment, the gas generator whose flow and temperature can be adjusted in a wide range is composed of four parts: the head 4, the combustion section 1, the mixing section 2 and the flow diversion section 3. Each section is connected by flanges, copper gaskets or graphite wound gaskets seal.

[0027] Wherein the head 4 comprises a head inner tube 41 and a head outer tube 42 coaxially set, the head outer tube 42 is equipped with an air pipeline 5, an air passage is formed between the head inner tube 41 and the head outer tube 42, The head inner tube 41 is a fuel channel; the combustion section 1 includes a coaxially set combustion section inner tube 11 and a combustion section outer tube 12. There is an air through hole, and the air in the air channel is sprayed into the inner tube 11 of the combustion section...

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Abstract

The invention discloses a gas generator with the large-range adjustable flow and temperature. The gas generator comprises a head part and a body part; the body part comprises a combustion section, a mixing section and a flow dividing section which are sequentially connected; the head part is coaxially mounted on the body part and connected with the combustion section; a heat part outer pipe is provided with an air pipeline communicating with the interior of the outer pipe, an air channel is formed between a head part inner pipe and the heat part outer pipe, and the head part inner pipe is a fuel channel; annular cavities between the air channel and a combustion section inner pipe as well as between the combustion section inner pipe and a combustion section outer pipe both communicate; a mixing section outer pipe communicates with the air pipeline through a connecting pipeline, and a plurality of mixing holes are formed in the pipe wall of a mixing section inner pipe; and an inlet of the flow dividing section communicates with an outlet of the mixing section inner pipe, the flow dividing section comprises a plurality of parallel-connection pipe sections, and gas exhaust hole plateswith different hole diameters are formed in all the pipe sections. Flow and temperature large-range adjustment is achieved through participating of the air distributed injection mode in combustion andmixing, and a combustion chamber dual-channel flow dividing technology.

Description

technical field [0001] The invention relates to a gas generator with adjustable flow rate and temperature in a wide range. Background technique [0002] In recent years, with the rapid development of aerospace technology, the requirements for the working performance of gas servo systems, engine turbine blades and other components within the full working envelope are getting higher and higher. Therefore, it is necessary to simulate the real working environment on the ground to assess its working performance within the full working envelope. This requires the ground gas generator to have the ability to adjust the flow and temperature in a wide range. At present, the minimum gas flow required is about 20g / s, and the minimum temperature is about 600K. Existing commonly used gas generators have the problems of ignition failure and unsustainable combustion when working at 600K. When the gas flow rate is 20g / s, the corresponding fuel flow rate is less than 1g / s, which brings great...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23R3/28
Inventor 李小平唐敏熊剑肖虹高强房喜荣
Owner XIAN AEROSPACE PROPULSION INST
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