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Fuel oil choking and atomizing nozzle of micro turbine engine

A technology of turbojet engine and atomizing nozzle, applied in combustion chamber, combustion method, combustion equipment and other directions, can solve problems such as high fuel consumption, and achieve the effect of prolonging heating time, simple structure and increasing heating area

Pending Publication Date: 2017-07-04
蔡肃民
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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 overcome the problem of high fuel consumption in the prior art, and provide a new type of fuel flow-restricting atomizing nozzle for a micro-turbojet engine

Method used

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  • Fuel oil choking and atomizing nozzle of micro turbine engine
  • Fuel oil choking and atomizing nozzle of micro turbine engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] See figure 1 , shown in the figure is a micro-turbojet fuel flow resistance atomizing nozzle. The atomizing nozzle is mainly composed of the evaporation tube body 1 and the like. The evaporation tube body 1 is a thin-walled circular tube. The evaporation tube body 1 has an inlet section 11 , an outlet section 13 and a middle section 12 connecting the inlet section 11 and the outlet section 13 . The evaporation tube body 1 corresponds to a combustion chamber 4 , and the air inlet 40 of the combustion chamber 4 is located at the outlet section 13 of the evaporation tube body 1 . Wherein, the inlet section 11 and the middle section 12 of the evaporation tube body 1 are both straight sections. The outlet section 13 of the evaporating tube body 1 is a diverging section, and the end of the outlet section 13 of the evaporating tube body 1 that is close to the middle section 12 of the evaporating tube body 1 is a small end, and the outlet section 13 of the evaporating tube b...

Embodiment 2

[0028] See figure 2 , what is shown in the figure is another kind of micro-turbojet engine fuel choke atomizing nozzle. The atomizing nozzle is mainly composed of the evaporation tube body 1 and the like. The evaporation tube body 1 is a thin-walled circular tube. The evaporation tube body 1 has an inlet section 11 , an outlet section 13 and a middle section 12 connecting the inlet section 11 and the outlet section 13 . The evaporation tube body 1 corresponds to a combustion chamber 4 , and the air inlet 40 of the combustion chamber 4 is located at the outlet section 13 of the evaporation tube body 1 . Wherein, the inlet section 11 and the middle section 12 of the evaporation tube body 1 are both straight sections. The outlet section 13 of the evaporating tube body 1 is a diverging section, and the end of the outlet section 13 of the evaporating tube body 1 that is close to the middle section 12 of the evaporating tube body 1 is a small end, and the outlet section 13 of th...

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PUM

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Abstract

The invention discloses a fuel oil choking and atomizing nozzle of a micro turbine engine. The fuel oil choking and atomizing nozzle comprises an evaporation pipe body. The evaporation pipe body is provided with an inlet section, an outlet section and a middle section located between the inlet section and the outlet section, wherein the middle section of the evaporation pipe body is a straight section; the outlet section of the evaporation pipe body is a divergent section; an oil spray pipe used for spraying fuel oil is accommodated in the inlet section of the evaporation pipe body; and the middle section of the evaporation pipe body is provided with a flow choking channel of a helical structure. The fuel oil choking and atomizing nozzle has the advantages that on the condition that the wall temperature of the evaporation pipe body is changeless, the heating time of fuel oil in the evaporation pipe body is prolonged through the flow choking channel, and the heating area of fuel oil in the evaporation pipe body is increased, so that fuel oil is evaporated, atomized and burned fully, and the fuel oil is saved by about 20-28%.

Description

technical field [0001] The invention relates to a turbojet engine, in particular to a fuel flow resistance atomizing nozzle of a miniature turbojet engine. Background technique [0002] The use of evaporator nozzles is a form of fuel atomization for micro-engines. The basic principle is that after the evaporating tube is heated, when the fuel flows through the evaporating tube, it evaporates into oil mist and mixes with the air to form atomized gas, so that the combustion chamber can ignite and burn successfully, and the micro engine can run normally. From this principle, it is not difficult to see that the effect of fuel atomization using evaporator tubes depends on three factors, namely, the wall temperature of the evaporator tube, the residence time of the fuel in the evaporator tube, and the heating area of ​​the fuel. The two elements have the following disadvantages: [0003] 1. Due to the structural limitation of the micro-engine, the evaporator tube is too short. B...

Claims

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Application Information

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IPC IPC(8): F23R3/38F23R3/30
CPCF23R3/30F23R3/38
Inventor 蔡肃民
Owner 蔡肃民