Aero-engine electrode and aero-engine comprising same

An aero engine and engine technology, applied in the direction of engine components, machines/engines, air transportation, etc., can solve the lack of other problems, and achieve the effect of preventing ablation or corrosion

Active Publication Date: 2021-07-13
AERO ENGINE ACAD OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in terms of the control of the main combustion chamber, at present, the flow and pressure of the fuel supply can only be adjusted by adjusting the fuel pump, fuel valve, etc. The combustion in the main combustion chamber mainly includes high-pressure and high-speed air in a confined space Physical processes such as complex flow, atomization of fuel, liquid-mist two-phase mixing, evaporation and flame heat transfer, and chemical processes such as ignition, combustion and flame propagation lack other more effective and finer methods for combustion control in the main combustion chamber. Control methods and means

Method used

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  • Aero-engine electrode and aero-engine comprising same
  • Aero-engine electrode and aero-engine comprising same
  • Aero-engine electrode and aero-engine comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] refer to figure 1 As shown, an electrode for an aero-engine includes a temperature-resistant and conductive electrode inner core 36 and a temperature-resistant and anti-corrosion electrode outer wall 37, and the electrode outer wall 37 is wrapped on the exposed surface of the electrode inner core 36, and a plurality of electrodes Installed in the combustion chamber B of the engine, and a plurality of electrodes can generate an electric field in the combustion chamber B. The inner core 36 of the electrode is made of platinum, rhodium, tungsten or its alloy materials, so as to meet the requirements of electrical conductivity and heat resistance when working in the combustion chamber, and the outer wall of the electrode is made of ceramic materials such as alumina and zirconia or other insulating, The coating of dense material ensures that the electrode inner core 36 does not directly contact with gas or air during the working process, so as to prevent ablation or corrosio...

Embodiment 2

[0038] In order to realize the second purpose of the present disclosure, the technical solution adopted in the present disclosure is as follows:

[0039] refer to figure 2Shown, a kind of aeroengine comprises engine body A, and engine body A can comprise air inlet 1, fuel inlet pipe 2, engine casing 3, nozzle assembly 25, outlet 11, outer flame tube wall 22, inner flame tube wall 23 , there is the combustion chamber B between the outer flame tube wall 22 and the inner flame tube wall 23; The wall hole 16 of the ring tube enters the combustion chamber B, the fuel inlet pipe 2 feeds fuel into the nozzle assembly 25, the fuel is injected into the combustion chamber B through the nozzle assembly 25, and the fuel and air are ejected from the outlet 11 after being burned in the combustion chamber B. The cross-section of the combustion chamber B of the engine can be a cylindrical combustion chamber cross-section or a circular ring, etc. The combustion chamber has a head area B1, a ...

Embodiment 3

[0062] to combine figure 1 As shown, the electrodes C include linear axial electrodes C1, and a plurality of axial electrodes C1 are arranged parallel to the axial direction of the combustion chamber. A plurality of axial electrodes C1 can be arranged in multiple concentric circular arrays, or in a rectangular array, or in an interlaced rectangular array. The number of axial electrodes C1 can be controlled according to the electric field Precision to set the degree of density. Applying different voltages at any distance and between any two axial electrodes C1 can generate electric fields of different strengths according to this formula. This creates an electric field between the two axial electrodes C1 in the combustion zone and in the mixing zone.

[0063] The axial electrode C1 includes the combustion zone axial electrode 9 and the mixing zone axial electrode 10, the combustion zone axial electrode 9 penetrates between the head end wall 39 and the combustion zone electrode...

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PUM

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Abstract

The invention discloses an aero-engine electrode and an aero-engine comprising the same. The electrode comprises a temperature-resistant conductive electrode inner core and a temperature-resistant corrosion-resistant electrode outer wall, wherein the electrode outer wall wraps the exposed surface of the electrode inner core. A plurality of the electrodes are mounted in a combustion chamber of the engine and can generate electric fields in the combustion chamber. The electrodes can be mounted in the combustion chamber and are controlled by an external electric field control device to output different voltages, so that the electric fields can be generated between the different electrodes; and the electrodes are arranged at different positions in the combustion chamber of the engine and can generate axial, radial or oblique electric fields, the external electric field control device outputs voltages and controls voltage changes, and therefore the electric fields between the electrodes can be controlled.

Description

technical field [0001] The disclosure belongs to the technical field of aero-engines, and in particular relates to an aero-engine electrode used for the aero-engine and an aero-engine composed thereof. Background technique [0002] In terms of aero-engine control technology, the state control ability and continuous adjustment ability of the engine under different working conditions have an important impact on the performance, life and reliability of the engine. With the development of engine control technology, the improvement of the reliability of control components and the reduction of weight and volume, various advanced control technologies will be more and more widely used in different parts of the engine. However, in terms of the control of the main combustion chamber, at present, the flow and pressure of the fuel supply can only be adjusted by adjusting the fuel pump, fuel valve, etc. The combustion in the main combustion chamber mainly includes high-pressure and high-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/26F02C9/00F02C7/00
CPCF02C9/26F02C9/00F02C7/00Y02T50/60
Inventor 吴云柯王慧汝杨谦张良薛然然李瑞明柳伟杰黄夏苗辉
Owner AERO ENGINE ACAD OF CHINA
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