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Nacelle fan cover sealing apparatus

A technology for sealing devices and fan covers, which can be used in jet propulsion devices, gas turbine devices, components of pumping devices for elastic fluids, etc., and can solve problems such as time-consuming

Inactive Publication Date: 2019-01-25
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used sealing structure is to install fire-resistant rubber profiles at the opposite seams, and the rubber profiles are vulnerable parts that need to be replaced many times during the service life of the aircraft. firmware, time-consuming

Method used

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  • Nacelle fan cover sealing apparatus

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specific Embodiment

[0013] The invention provides a nacelle fan cover sealing device such as figure 1 As shown, it belongs to the aircraft engine nacelle component, and the use position is the docking part of the left and right fan cover, which includes a C-shaped card slot 1, an Ω-shaped rubber 2 and an L-shaped base 3. Preferably, the above-mentioned C-shaped card slot 1, Ω-shaped rubber 2 and the L-shaped base 3 are both strip-shaped and have the same length as a whole, and the L-shaped base 3 is fixed on the fan cover shell. In this embodiment, the L-shaped base 3 is connected to the fan cover shell by riveting or screwing. fixed;

[0014] The back of the C-shaped card slot 1 is a plane, and the plane of the C-shaped card slot 1 is fixed to one of the outer surfaces of the L-shaped base 3, such as figure 1 The C-shaped card slot 1 and the L-shaped base 3 are in the form of "back to back". In this embodiment, the C-shaped card slot 1 is fixed to the L-shaped base 3 by double-sided countersunk...

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Abstract

The invention relates to the technical field of aircraft equipment sealing, and particularly provides a nacelle fan cover sealing apparatus, which comprises a C-shaped snapping groove, an omega-shapedrubber and an L-shaped base, wherein the L-shaped base is fixed on a fan cover shell, the back portion of the C-shaped snapping groove is a plane, the plane of the C-shaped snapping groove and one ofthe outer side surfaces of the L-shaped base are fixed, the cross section of the omega-shaped rubber has an omega shape, both sides of the bottom portion of the omega-shaped rubber project, the projecting surface is provided with an arc-shaped section, the projecting arc-shaped section and the arc-shaped section on the inner wall of the C-shaped snapping groove form attached contact, the bottom surface of the omega-shaped rubber and the inner wall of the C-shaped snapping groove are fixed by an adhesive, and the annular head portion of the omega-shaped rubber is exposed to the C-shaped snapping groove. According to the present invention, the bolt fixing is replaced with the adhesive, and during the disassembly, the rubber profile can be removed from the snapping groove by removing the adhesive liquid with the special cleaning agent, such that the maintenance and replacement time of the rubber profile is shortened, and the disassembly and assembly time is saved.

Description

technical field [0001] The invention relates to the technical field of aircraft equipment sealing, in particular to a nacelle fan cover sealing device. Background technique [0002] The junction of the left and right fan covers of the aircraft engine nacelle needs to be sealed against fire. The commonly used sealing structure is to install fire-resistant rubber profiles at the opposite seams, and the rubber profiles are vulnerable parts that need to be replaced many times during the service life of the aircraft. Firmware takes a long time. Contents of the invention [0003] In order to overcome the defects in the above-mentioned prior art, the present invention provides a nacelle fan cover sealing device, which includes a C-shaped slot, an Ω-shaped rubber and an L-shaped base, the L-shaped base is fixed on the fan cover shell, and the C-shaped The back of the card slot is a plane, and the plane of the C-shaped card slot is fixed to one of the outer surfaces of the L-shap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/28F04D29/08F04D29/70
CPCF02C7/28F04D29/083F04D29/703F05D2220/323
Inventor 李振雷黎明孟兆康纪小飞
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA