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Integrated afterburner provided with deflected rectification support plate

A technology of afterburner and rectifying strut, which is applied in the direction of combustion chamber, continuous combustion chamber, combustion method, etc., and can solve the problems of reducing mass, reducing fluid loss, afterburner, and low combustion efficiency

Active Publication Date: 2017-05-17
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this scheme will greatly reduce fluid loss, reduce the length of the afterburner, and reduce the mass, but the combustion efficiency is still low

Method used

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  • Integrated afterburner provided with deflected rectification support plate
  • Integrated afterburner provided with deflected rectification support plate
  • Integrated afterburner provided with deflected rectification support plate

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Embodiment Construction

[0018] The present invention will be further described now in conjunction with accompanying drawing:

[0019] combine figure 1 , figure 2 , image 3 , Figure 4 , The present invention provides an integrated afterburner with a deflected rectifying strut. figure 1 It is an overall schematic diagram of an integrated afterburner with a deflected rectifying strut, figure 2 It is a front view of the entrance of an integrated afterburner with a deflected rectifying strut, image 3 It is a schematic diagram of the layout of the rectifying strut flame stabilizer and the afterburner inner cone, Figure 4 Schematic diagram of the rectifying strut flame holder.

[0020] The airflow from the inner and outer ducts passes through figure 1 (4) The sliding baffle type rear duct ejector is mixed between the rectifying support plate flame stabilizer, image 3 (1) The rectifying support plate flame stabilizers are evenly arranged in the circumferential direction, and form a certain ang...

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Abstract

The invention provides an integrated afterburner provided with a deflected rectification support plate. The integrated afterburner provided with the deflected rectification support plate can effectively enlarge a backflow area, prolong the staying time of a gas mixture and improve the combustion efficiency. Gas flows from an inner duct and an outer duct are mixed between rectification support plate flame stabilizers through sliding baffle type back duct ejectors. Blades of the rectification support plate flame stabilizers are periodically and evenly arranged, and each blade and the axial direction form a certain included angle. Fuel oil enters a fuel oil channel inside the rectification support plate flame stabilizers through an oil supply channel. The fuel oil is sprayed out through direct-injection type spray nozzle small holes on the two sides and mixed with the gas mixture of the inner duct and the outer duct, and then the fuel oil is combusted behind the rectification support plate flame stabilizers. Under the action of the rectification support flame stabilizers, the backflow area is enlarged, the staying time of oil and gas is prolonged, the oil and the gas are more evenly mixed, combustion is more complete, and then the combustion efficiency is effectively improved.

Description

technical field [0001] The invention belongs to the field of gas turbine engines, and in particular relates to an integrated afterburning chamber with deflected rectifying struts. Background technique [0002] For fighter jets, the flight envelope of the aircraft has a great impact on its combat performance. In order to increase the thrust-to-weight ratio of the aircraft and expand the flight envelope, the new generation of fighter jets basically use turbofan engines with afterburners. The afterburner is a device that injects oil into the gas after the turbine or the mixture of gas and external content to ignite and burn, so as to increase the temperature of the airflow and increase the thrust of the engine in a short period of time. Afterburner consists of diffuser, igniter, nozzle, flame stabilizer, anti-vibration heat shield and cylinder. The turbofan engine adopts an afterburner, which can increase the thrust by more than 70%, and can reach more than 150% during superso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/20
CPCF23R3/20
Inventor 张群李承钰宋亚恒寇睿黎超超李逸飞
Owner NORTHWESTERN POLYTECHNICAL UNIV
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