Engine Air Cooling System
An air cooling system and engine technology, which is applied to the cooling of the engine, engine components, machines/engines, etc., can solve the problem of excessive sand accumulation on the drum shaft, and achieve the effect of ensuring the cooling effect and preventing bulging
Active Publication Date: 2017-11-14
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0004] The invention provides an engine air cooling system to solve the technical problem that the drum shaft has a large amount of sand accumulation to form a bulge
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[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0026] refer to figure 2 , the preferred embodiment of the present invention provides an engine air cooling system, including a centrifugal compressor 100, a diffuser 200 and a drum shaft 300, the diffuser 200 is sleeved on the centrifugal compressor 100, so The gap between the diffuser 200 and the outlet of the centrifugal compressor 100 forms a first channel, and the gas flowing out of the centrifugal compressor 100 is discharged through the first channel and the outlet of the diffuser 200 to form a second channel. One airflow a and the second airflow b. The first flow channel communicates with the inner cavity 310 of the drum shaft 300, the first air flow a enters the inner cavity 310 through the first flow channel, and the inner cavity 310 is ...
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The invention discloses an engine air cooling system, which comprises a centrifugal compressor, a diffuser and a drum shaft, the diffuser is sleeved on the centrifugal compressor, and the gap between the diffuser and the outlet of the centrifugal compressor forms a first flow channel The gas flowing out of the centrifugal compressor is respectively discharged through the first channel and the outlet of the diffuser to form the first airflow and the second airflow. The first flow channel communicates with the inner cavity of the drum shaft, the first air flow enters the inner cavity through the first flow channel, and the inner cavity is isolated from the second air flow. The gas flowing out of the centrifugal compressor is under the action of centrifugal force, and the sand and dust are thrown away from the centrifugal compressor. The air flow at the outlet of the centrifugal compressor does not contain sand and dust, that is, the first air flow is clean air, and the second air flow is sandy. dusty air. The first air flow communicates with the inner cavity to cool the drum shaft, and the second air flow does not enter the drum shaft to prevent dust from entering the drum shaft. The engine air cooling system can not only ensure the cooling effect but also prevent sand and dust from entering the drum shaft and causing bulging.
Description
technical field [0001] The invention relates to the field of engine cooling devices, in particular to an engine air cooling system. Background technique [0002] Existing engine internal air systems such as figure 1 As shown, the compressed air entering from the centrifugal compressor 1 is diffused by the diffuser 2, a part of the compressed air directly enters the outer ring 4 of the flame tube to participate in combustion, and part of the compressed air passes through the hollow blade 7 of the primary guide, and the inner ring 3 of the flame tube , The labyrinth sealing sleeve 5 and the waist-shaped hole of the drum shaft 6 enter the drum shaft 6 for cooling the primary turbine disk 8 and the secondary turbine disk 9 . [0003] When the aero-engine is working in a place with sand and dust, the sand and dust enter the drum shaft 6 along with the cooling air flow. At this time, the direction of the air flow changes from radial to axial, and the speed is greatly reduced. At ...
Claims
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IPC IPC(8): F02C7/18F04D29/44F01P5/02
Inventor 陈欣侯宪勇贺岗方春娇
Owner CHINA HANGFA SOUTH IND CO LTD