Two-duct turbojet engine with bearing cooling function

A jet engine and ducting technology, which is applied in the cooling of engine components, machines/engines, and engines, can solve the problems of short working life of rotating parts and difficulty in lubricants, so as to improve engine performance, reduce operating temperature, and prolong The effect of engine life

Active Publication Date: 2020-09-08
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, it is difficult for existing lubricants to lubricate effectively at such a high temperature; on the other hand, the working life of rotating parts is extremely short at high temperatures

Method used

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  • Two-duct turbojet engine with bearing cooling function
  • Two-duct turbojet engine with bearing cooling function

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] The purpose of the present invention is to provide a two-duct turbojet engine with bearing cooling function, to reduce the temperature of the bearing working area when the engine is working, reduce the cost of the engine, prolong the life of the engine and improve the performance of the engine.

[0022] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described...

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Abstract

The invention discloses a two-duct turbojet engine with a bearing cooling function. The two-duct turbojet engine comprises ducts, an air inlet mechanism arranged at the air inlet end of the ducts andan exhaust nozzle arranged at the air outlet end of the ducts, wherein the ducts comprise an outer duct and an inner duct positioned in the outer duct, the outer duct and the inner duct communicate with the exhaust nozzle, and the outer duct and the inner duct communicate with the air inlet mechanism. Compared with a traditional turbojet engine, the two-duct turbojet engine with the bearing cooling function has the advantages that the temperature of a bearing working area is reduced when the engine works, the cost of the engine is reduced, the service life of the engine is prolonged, and the performance of the engine is improved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a two-duct turbojet engine with a bearing cooling function. Background technique [0002] In 1903, the Wright Brothers successfully flew a controlled fixed-wing aircraft for the first time. In the ensuing century, aviation aircraft brought earth-shaking changes to human society. Countries around the world have invested a lot of scientific research in the development of aviation aircraft technology, and the most critical technology in aviation aircraft technology is aeroengine technology. [0003] Before the 1940s, most aircraft used piston engines. This type of engine can only output torque and cannot directly produce pulling or thrust, so it is often used with a propeller. The propeller is driven by the engine to rotate, creating a pulling force on the blades. As the flight speed of the aircraft increases, the linear velocity of the airflow at the end of the blade increases ...

Claims

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Application Information

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IPC IPC(8): F02K3/06F02C7/18F02C7/06
CPCF02K3/06F02C7/18F02C7/06
Inventor 赵景山张家悦
Owner TSINGHUA UNIV
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