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Vane

A kind of technology of blade and blade body

Active Publication Date: 2015-06-10
AECC COMML AIRCRAFT ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, although the traditional aluminum alloy solid structure can meet the requirements of strength and processing, its weight is heavier than that of composite materials.
Composite material fan outlet guide vanes have the advantage of reducing weight, but the processing and forming methods of composite material blades are not mature enough, and due to the addition of metal edging, the connection process between metal edging and composite material blades is more complicated, which reduces to a certain extent The safety and reliability of the blades are not guaranteed, and the processing and molding methods are not mature enough

Method used

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Embodiment Construction

[0026] see Figure 1a , Figure 1b , Figure 1a Schematically shows a perspective view of a blade 100 according to an embodiment of the invention, with the cover removed; Figure 1b show Figure 1a A cross-sectional view of the blade 100.

[0027] Specifically, the blade 100 includes a blade body 102 having a leading edge 104 , a trailing edge 106 , and a suction surface 108 and a pressure surface 110 formed extending from the leading edge 104 to the trailing edge 106 . The blade body 102 is also provided with a recessed portion 112 recessed inwardly from one side of the suction surface 108 , and a plurality of reinforcing columns 114 are evenly arranged and fixed in the recessed portion 112 . The blade body 102 forms a joint area 115 around the recessed portion 112. A cover 116 is positioned to the joint area 115 and closes the recessed portion 112. The inner surface of the cover 116 is fixed to a plurality of reinforcing columns 114. The cover 116 The outer surface of 116 ...

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Abstract

A vane comprises a vane body, a plurality of reinforcing columns and a cover body. The vane body extends from the front edge to the rear edge to form a pressure face and a suction face, and a sunken part is formed on one side of one of the suction face and the pressure face of the vane body. One end of each reinforcing column is fixed in the sunken part. The cover body is fixed with the other end of each reinforcing column and seals the sunken part. A part of the suction face or the pressure face which is provided with the sunken part is formed on the outer surface of the cover body. The vane is a hollow vane with the reinforcing columns, on one hand, a hollow structure enables the weight of the vane to be lightened, and one the other hand, the attached reinforcing columns can further improve the strength of the vane.

Description

technical field [0001] The invention relates to a blade, in particular to a fan outlet guide blade of an aero-engine capable of reducing weight and maintaining sufficient strength against foreign objects. Background technique [0002] The fan outlet guide vanes of the aero-engine are located behind the fan blades, connecting the splitter ring and the outer ring of the intermediate casing, which are used to eliminate the swirl flow discharged by the fan, and make the air flow flow out along the duct to correct the direction of the air flow. At the same time, The fan outlet guide vanes have a certain inclination angle, so that the airflow can increase a certain thrust when flowing through the outlet guide vanes; on the other hand, in modern high bypass ratio turbofan engines, the fan outlet guide vanes can also play a role in reducing noise. For example, in the GE90 engine, by selecting the number of blades of the fan outlet guide blades, it can cut off the propagation of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D9/02B23K20/12
Inventor 韩秀峰张露钱凌翼
Owner AECC COMML AIRCRAFT ENGINE CO LTD
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