A new ignition system and ignition method for multiple ignition of liquid ramjet

A ramjet engine, multiple ignition technology, applied in the direction of engine testing, machine/structural component testing, instruments, etc., can solve the problems of poor maintainability, complex system, etc., achieve wall temperature reduction, simple system, and guaranteed reliability Effect

Active Publication Date: 2019-03-12
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system needs to be equipped with two sets of propellant supply containers and pipelines, and also needs to be equipped with booster rectification devices such as high-pressure packs. The system is complicated, and the operation and maintenance are poor.

Method used

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  • A new ignition system and ignition method for multiple ignition of liquid ramjet
  • A new ignition system and ignition method for multiple ignition of liquid ramjet
  • A new ignition system and ignition method for multiple ignition of liquid ramjet

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Embodiment Construction

[0041] Such as figure 2 As shown, the novel ignition system disclosed by the present invention for multiple ignition of liquid ramjet includes a booster system 1 , an igniter storage tank 2 , a supply system 3 and an injector 4 connected in sequence.

[0042] The pressurization system 1 includes a first vacuum pipeline 101 and a pressurization pipeline 102 installed on the upper end of the igniter storage tank 2; , an exhaust pipeline 103 is reserved on the pressurization pipeline 102 . A first vacuum isolation valve 104 is provided on the first vacuum pipeline 101, a pressurized gas isolation valve 105 is installed on the pressurized pipeline 102, a pressurized gas replacement valve 106 is installed on the exhaust pipeline 103, and the aforementioned All valves are manual valves; along the exhaust gas flow direction, the exhaust pipeline is located at the rear end of the pressurized gas isolation valve.

[0043] The igniter storage tank 2 is used to store the igniter. Befo...

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PUM

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Abstract

The invention discloses a novel ignition system, so as to solve the defect that the existing ignition system needs to be equipped with two sets of propellant supply containers and pipelines, and the system is thus complicated. The novel ignition system comprises a pressurization system, an ignition agent storage box, a supply system and an injector connected in sequence, wherein the pressurization system comprises a first vacuum pumping pipeline and a pressurization pipeline parallelly arranged on the ignition agent storage box; the ignition agent storage box is used for storing an ignition agent, and the storage box is internally provided with a vacuum environment; the supply system comprises a supply pipeline, and a manual isolation valve, a first blow off pipeline, a second blow off pipeline, a pneumatic isolation valve, a manual shutoff valve, a pneumatic shutoff valve and a third blow off pipeline arranged on the supply pipeline sequentially; one end, close to the manual isolation valve, of the supply pipeline is an input end, and the supply pipeline is connected with the ignition agent storage box via the manual isolation valve; and a squeezing medium is supplied from the pressurization pipeline, the ignition agent in the ignition agent storage box is squeezed to the supply system and then enters the injector from the output end of the supply system, and the ignition agent is then injected out of the injector for realizing ignition.

Description

technical field [0001] The invention belongs to the field of engine direct connection test, in particular to an ignition system for engine ground test. Background technique [0002] As an important part of future aircraft, ramjet has the characteristics of light weight, high specific impulse, high speed and reusability. In the development test of a new type of ramjet engine, multiple starts are required for a single test. The ignition system that meets the requirements of multiple ignitions in the existing ground test is mainly the torch ignition system. The system principle is as follows: figure 1 shown. The torch ignition system adopts the gas-oxygen / kerosene organization combustion, and the high-voltage direct current excites the spark plug to ignite the mixed gas. The system needs to be equipped with two sets of propellant supply containers and pipelines, and also needs to be equipped with booster rectification devices such as high-pressure packs. The system is complic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/02
CPCG01M15/02
Inventor 张玉浩虞虔王岳史超李双军程向华麻军德李陆昊李国涛徐玲余爱英
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST
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