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A staggered diversion slot type V-shaped flame stabilizer

A flame stabilizer and mixer technology, applied in the aviation field, can solve the problems of insufficient utilization, low combustion efficiency of an afterburner, unstable combustion, etc., and achieve good flame stability performance, which is beneficial to stable combustion, flame propagation, and backflow. zone temperature and its distribution and the effect of fuel evaporation and its distribution improvement

Active Publication Date: 2022-06-24
NANCHANG HANGKONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For afterburning turbofan engines with a bypass ratio of about 0.5 to 0.6, the usual integrated afterburner does not make full use of the ungas flow in the external bypass, and even leads to unstable combustion, and the overall combustion efficiency of the afterburner is relatively low. Low

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  • A staggered diversion slot type V-shaped flame stabilizer
  • A staggered diversion slot type V-shaped flame stabilizer
  • A staggered diversion slot type V-shaped flame stabilizer

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Embodiment Construction

[0026] The following will be combined with the Figures 1 to 6 The present invention is further described in detail with examples.

[0027] A V-shaped flame stabilizer with staggered diversion slits is mainly composed of a partition plate 1, a V-shaped surface 2, a staggered diversion slit 3, a partition plate 4, and a lightening hole 5, wherein the partition plate 1 can be regarded as the inside and outside Culvert ring mixer, the partition plate 1 is connected to the V-shaped surface 2, and the staggered guide slit 3 is arranged on the V-shaped surface 2, and the partition plates are arranged on both sides of each hole of the staggered guide slit 3 perpendicular to the V-shaped surface 2 4. Lightening holes 5 are arranged on the partition plate 4 .

[0028] As a further improvement of the embodiment of the present invention, the length of the V-shaped surface 2 is determined by the specific engine. In this embodiment, it is 180 mm, and the wall thickness is 0.8-1.5 mm. In t...

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Abstract

The present invention relates to a V-shaped flame stabilizer with staggered diversion slots, which is mainly composed of a partition plate, a V-shaped surface, a staggered diversion slot, a partition, and lightening holes. The staggered flow diversion middle slot is arranged on the V-shaped surface, the partitions are arranged perpendicular to the V-shaped surface on both sides of each hole of the staggered flow diversion middle slit, and lightening holes are arranged on the partitions. The advantages and beneficial effects of the present invention are: adopting the staggered diversion slot type V-shaped flame stabilizer, the flame stability performance is good, the flame propagation speed is fast, the flow resistance loss is small, and the combustion efficiency is high.

Description

technical field [0001] The invention relates to a V-shaped flame stabilizer with a staggered diversion and a slit, which can be used for an integrated afterburner of a high thrust-to-weight ratio aero-engine, and belongs to the technical field of aviation. Background technique [0002] The new generation of afterburner turbofan engine pursues a high thrust-to-weight ratio. In terms of afterburner, it requires simple components, low cold flow resistance loss, a small proportion of afterburner length, and high afterburner combustion efficiency. The afterburner uses a flame stabilizer to stabilize the flame to organize combustion, and the performance of the flame stabilizer is the decisive factor for the performance of the afterburner. Most of the new generation of afterburner turbofan engines use an integrated afterburner with an integrated design of a rectifier strut and a flame stabilizer. [0003] For an afterburner turbofan engine with a bypass ratio of about 0.2 to 0.3, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23R3/30F23R3/42F23R3/58
CPCF23R3/30F23R3/42F23R3/58F23R2900/03045
Inventor 盛志强
Owner NANCHANG HANGKONG UNIVERSITY