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Turbojet engine

A turbojet and engine technology, which is applied in the direction of machines/engines, jet propulsion devices, etc., can solve the problems of turbojet engine damage, insufficient air intake in the combustion chamber, and reverse flow of airflow, so as to reduce the probability of surge and reduce airflow Backflow phenomenon, the effect of increasing the flow rate

Inactive Publication Date: 2015-04-29
王来瑞
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the axial-flow compressor is easy to form instantaneous back pressure and reverse air flow, the air intake in the combustion chamber is insufficient, resulting in surge phenomenon, resulting in damage or shutdown of the turbojet engine

Method used

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Embodiment Construction

[0021] In the following, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments, so as to understand the technical ideas claimed in the present invention more clearly.

[0022] Such as figure 1 , 2 , shown in 3, is a kind of turbojet engine of the present invention, comprises casing, is arranged on the intake passage 11 in the casing, is arranged on the combustion chamber 12 that is arranged in the casing and is positioned at the intake passage 11 rear, is installed in the air intake In the channel 11, there is an air compressor assembly 2 for inhaling air and pushing the air to rotate toward the direction of the combustion chamber 12, a rotatable turbine 3 behind the combustion chamber 12, and a tailpipe 4 for ejecting high-speed gas. The compressed air assembly 2 includes four compressed air devices 21-24; the compressed air devices 21-24 may be compressed air fans or the like. The distances between the four c...

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Abstract

The invention discloses a turbojet engine. The turbojet engine comprise a housing, an air inlet, a combustion chamber, an air compressing component, a turbine and a tailpipe, wherein the air inlet, the combustion chamber and the air compressing component are disposed inside the casing; the rotatable turbine is installed behind the combustion chamber; the tailpipe is used for jetting high-speed air; and the air compressing component comprises at least two air compressing devices. Through a turbine shaft, the turbine is connected with a transmission and speed device which is used for driving at least two air compressing devices to rotate; the air compressing devices have different distances from the combustion chamber; and optional two air compressing devices have axes which are mutually staggered. Compared the turbine to each air compressing device, according to the distance sequence from far to near of the air compressing device and the combustion chamber, the drive ratio between the turbine and each air compressing device decreases, and each drive ratio is less than 1. Through the reasonable arrangement of the air compressing devices and according to the speed thereof, airflow backflow is reduced by means of acceleration step by step, and thus, the rate of surging occurrence is reduced.

Description

technical field [0001] The invention relates to a turbojet engine. Background technique [0002] Existing turbojet engine comprises intake port, axial compressor, combustor, turbine, tail pipe. Wherein, the axial flow compressor is fixed on the turbine through a concentric shaft. When the turbojet engine is working, air enters the intake port of the turbojet engine from the outside and flows along the axial direction of the axial flow compressor. Combustion and expansion generate high-speed and high-pressure air, which drives the turbine to rotate, and is finally ejected through the tail nozzle to generate reverse thrust. However, because the axial flow compressor is easy to form instantaneous back pressure and the phenomenon of reverse flow of air flow, the air intake in the combustion chamber is insufficient, resulting in surge phenomenon, resulting in damage or shutdown of the turbojet engine. Contents of the invention [0003] In order to overcome the deficienci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K3/00
Inventor 王来瑞
Owner 王来瑞
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