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Device and method for improving crosswind resistance of aeroengine nacelle inlet

A technology for aero-engines and air intakes, applied in the direction of engine components, machines/engines, jet propulsion devices, etc., can solve the problems of reducing the reputation and profit level of airlines, increasing the working time of engines, and increasing the difficulty of pilots' operations, etc., to achieve improvement Environmental adaptability and operational capability, improvement of crosswind resistance, and effect of expanding the range of crosswind envelopes

Active Publication Date: 2022-05-10
AECC COMML AIRCRAFT ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Changing the operation mode of the aircraft / engine will increase the pilot's operational difficulty and increase the working hours of the engine; grounding will directly lead to flight delays or cancellations, reducing the airline's reputation and profitability

Method used

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  • Device and method for improving crosswind resistance of aeroengine nacelle inlet
  • Device and method for improving crosswind resistance of aeroengine nacelle inlet
  • Device and method for improving crosswind resistance of aeroengine nacelle inlet

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Embodiment Construction

[0030] A variety of different implementations or examples for implementing the described subject technical solutions are disclosed below. In order to simplify the disclosure, the following describes the specific examples of each component and arrangement, of course, these are only examples, not limiting the protection scope of the present invention. For example, the description that the first feature described later in the description is formed on or above the second feature may include an embodiment in which the first and second features are formed through direct contact, and may also include an embodiment in which the first and second features are formed between the first and second features. Embodiments of additional features such that there may be no direct relationship between the first and second features. Additionally, reference numerals and / or letters may be repeated in different instances in these disclosures. This repetition is for brevity and clarity and does not i...

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Abstract

A device and method for improving the crosswind resistance of an aero-engine nacelle air intake, wherein the device includes an air intake port of a high-pressure air source arranged downstream of the fan, an air collection chamber located at the lip of the nacelle air intake, and a high-pressure Air is introduced into the duct of the air collecting chamber, the air injection hole communicated with the air collecting chamber, and a plurality of said Air injection holes, the air injection holes on the inner wall surface of the lip on the windward side are configured to inject airflow to increase the flow velocity of the separated air mass on the inner wall surface of the air inlet; The injection hole is configured to inject air flow to block the ground vortex.

Description

technical field [0001] The invention relates to an aero-engine, in particular to a device and a method for the cross-wind resistance of an aero-engine nacelle air intake. Background technique [0002] Wind is a meteorological phenomenon inherent in nature and one of the atmospheric environmental conditions that affect the operation of civil aircraft. The relationship between the wind direction and the position of the aircraft and the engine, and the related definitions of the crosswind are as follows figure 1 as shown, figure 1 The engine 1 , the tailwind direction 11 , the crosswind direction 13 , the crosswind direction 12 , the crosswind angle A, and the engine axis a1 are respectively shown. [0003] For civil aircraft using nacelle inlets, the crosswind will cause the airflow to flow around the lip of the nacelle, causing airflow separation to form on the inner wall of the nacelle inlet on the windward side of the crosswind. The total pressure is small, resulting in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C7/057F02C7/04
CPCF02C7/057F02C7/04
Inventor 骆广琦王玉东吴明峰郑恒赵运生斯夏依
Owner AECC COMML AIRCRAFT ENGINE CO LTD
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