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Dividing wall type regenerative cooling air oxygen alcohol torch type igniter

A regenerative cooling and igniter technology, applied in combustion ignition, incandescent ignition, jet propulsion devices, etc., can solve problems such as inconvenient use and maintenance, low ignition energy, and poor reliability of igniters, so as to reduce processing difficulty and meet ignition requirements , Guarantee the effect of cooling reliability

Active Publication Date: 2012-06-27
NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a partition-type regenerative cooling gas oxygen alcohol torch igniter, which solves the technical problems of poor reliability, low ignition energy, and inconvenient use and maintenance of existing igniters

Method used

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  • Dividing wall type regenerative cooling air oxygen alcohol torch type igniter
  • Dividing wall type regenerative cooling air oxygen alcohol torch type igniter
  • Dividing wall type regenerative cooling air oxygen alcohol torch type igniter

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Embodiment Construction

[0018] The partition wall regenerative cooling gas oxygen alcohol torch igniter of the present invention comprises an oxidizer assembly, a fuel assembly, a midsole 2, a spark plug 16, a nozzle assembly 10 and a combustion chamber 5; The oxidant inlet nozzle 8, the oxidant shell 1 and the midsole 2 constitute the oxidant chamber; the fuel assembly includes a cooling jacket 4 wrapped outside the combustion chamber 5, a fuel inlet nozzle 9 arranged on the cooling jacket, and the midsole 2 The other end surface and the inner bottom of the fuel injection liquid collection chamber 15 are formed. The oxidant shell 1 and the midsole 2 are welded to form an oxidant chamber; the oxidant inlet nozzle and the fuel inlet nozzle are respectively welded to the oxidizer shell and the cooling jacket to form the propellant inlet. To ensure reliable cooling of the igniter, a cooling jacket is designed. The gap formed between the cooling jacket and the combustion chamber constitutes the regenera...

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Abstract

The invention discloses a dividing wall type regenerative cooling air oxygen alcohol torch type igniter which comprises an oxidant shell, a middle bottom, an inner bottom, a cooling jacket, a combustion chamber, a nozzle, a sparking plug, an oxidant inlet pipe mouth and a fuel inlet pipe mouth, wherein oxygen and alcohol are adopted as a propellent, and ignition is carried out by adopting the electric sparking plug. The nozzle comprises a straight-flow nozzle and an eccentric type nozzle, the straight-flow nozzle is an oxidant nozzle, the eccentric nozzle is a fuel nozzle, a cavity from the outlet of the straight-flow nozzle to the outlet of the eccentric nozzle is a reducing chamber; oxidant enters the reducing chamber from the straight-flow nozzle, fuel enters a fuel before-spraying liquid collecting cavity through a regenerating cooling chamber and then rotates through eccentric nozzle tangential holes and enters the reducing chamber, and the oxidant and the fuel are atomized and mixed in the reducing chamber and stably combusted at the outlets of the nozzles. High-temperature fuel is uniformly mixed in the combustion chamber and then sprayed through the throat part of the combustion chamber to form a stable torch. The invention ensures ignition and cooling reliability of an igniter and stable combustion of the torch at the outlet.

Description

technical field [0001] The invention relates to a torch igniter, in particular to a partition wall regenerative cooling torch igniter using oxygen and alcohol as propellants, which can be applied to the ignition of ground combustion devices and non-spontaneous propellant liquid rocket engine thrust chambers, The ignition process of the generator. Background technique [0002] The currently widely used igniters mainly include powder igniters, electric spark igniters, resonant igniters and self-igniting torch igniters. Gunpowder igniters and self-igniting igniters have high reliability, but their reusability is poor. The gunpowder igniters must be reloaded after each use, and solid gunpowder is easy to produce residue after burning, which is extremely inconvenient to use and maintain. . The propellants used in self-igniting igniters are all liquid, and generally there is no problem of combustion residues, but most of the self-igniting propellant combinations are toxic, such ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23Q7/06F23Q7/22F02K9/95F02K9/62
Inventor 吕发正银晋瑞王军吴海波郭灿琳卢钢夏开红
Owner NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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