Thermal management method and architecture of aero-engine

An aero-engine and thermal management technology, applied in engine components, engine cooling, air transportation, etc., to achieve the effect of improving heat cascade utilization efficiency and improving working life

Pending Publication Date: 2022-07-05
AECC SHENYANG ENGINE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of this application is to provide an aeroengine thermal management method and architecture to solve or alleviate at least one of the problems in the background technology

Method used

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  • Thermal management method and architecture of aero-engine
  • Thermal management method and architecture of aero-engine

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Embodiment Construction

[0022] In order to make the implementation purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application.

[0023] In order to solve the problem of satisfying the heat dissipation of the lubricating oil under the high inlet fuel temperature, and at the same time obtain a lower fuel temperature under the restriction of the higher inlet fuel temperature, so as to ensure the working environment of the fuel accessories, a thermal management method for an aero-engine is proposed in this application. and structure.

[0024] like figure 2 As shown in the figure, the thermal management method of the aero-engine provided by the present is as follows: the external air-lubricating oil heat exchanger 25 and the external air-fuel radiator 24 are respectively arranged on the l...

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Abstract

The invention provides an aero-engine thermal management method which comprises the steps that an air entraining channel for entraining air from an engine outer duct is constructed, and meanwhile an outer duct air-lubricating oil heat exchanger and an outer duct air-fuel oil radiator are arranged on a lubricating oil cooling flow path and an engine fuel oil flow path correspondingly; the air entraining channel is connected with the outer culvert air-lubricating oil heat exchanger and the outer culvert air-fuel oil radiator; a control valve is arranged in the air entraining channel, low-temperature air flow of the outer duct of the engine is controlled to enter the outer duct air-lubricating oil heat exchanger and the outer duct air-fuel oil heat exchanger through the control valve, and heat of high-temperature lubricating oil and fuel oil is taken away through low-temperature outer duct air. And the temperature of fuel oil entering an engine fuel oil system and the temperature of lubricating oil entering a next-stage fuel oil and lubricating oil radiator are reduced, and therefore the requirement for fuel oil and lubricating oil heat management of an aero-engine is met. According to the method, the requirement for cooling the lubricating oil and the fuel oil accessory is met, and the service life of the lubricating oil and fuel oil accessory can be prolonged.

Description

technical field [0001] The present application belongs to the technical field of aero-engines, and in particular relates to a thermal management method and structure of an aero-engine. Background technique [0002] Aero-engine thermal management is the key technology of advanced aviation power. It uses low-temperature air and low-temperature fuel as the main heat sink. Through the design of energy and heat in the process of transmission, exchange and utilization, as well as the design of heat exchanger components, it can meet the requirements of aircraft for engine and heat exchanger components. Thermal management needs of engine components / subsystems. The comprehensive thermal management of fuel oil is an important part of engine thermal management. Its goal is to achieve cooling of engine oil under a certain inlet fuel temperature limit. [0003] The oil cooling of the engine is that in the process of lubricating the bearing, the lubricating oil takes away the heat genera...

Claims

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Application Information

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IPC IPC(8): F02C7/14F02C7/18
CPCF02C7/14F02C7/18Y02T50/60
Inventor 梁义强庞晓冬刘国朝张筱喆赵孟梁彩云
Owner AECC SHENYANG ENGINE RES INST
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