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Aircraft engine compartment air inlet flue fairing

An engine compartment and air intake technology, which is applied to the power plant on the aircraft, the components of the aircraft power plant, and the combustion of the intake port of the power plant, etc. The complex shape and other problems of the road can achieve the effect of meeting the installation and use requirements.

Inactive Publication Date: 2014-01-22
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inlet fairing interferes with the blades when it is opened; the connection between the engine and the nacelle of the new aircraft adopts a space truss structure. When the aircraft is flying in an ice area, the engine fixing ring is located above the inlet area of ​​the inlet, which is easy to freeze , affecting the engine intake
The rear ice and snow separation channel assembly has a small structural space, and at the same time must ensure the value of the bypass ratio at the front, and the general form cannot meet the requirements
The shape of the air inlet of the lubricating oil radiator is complicated, and it is difficult to form the parts

Method used

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  • Aircraft engine compartment air inlet flue fairing
  • Aircraft engine compartment air inlet flue fairing
  • Aircraft engine compartment air inlet flue fairing

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] YF aircraft nacelle inlet fairing adopts a new shape design, and the new shape has better aerodynamic performance. For the specific structure of the intake fairing of the engine compartment, see figure 1 .

[0019] The engine intake fairing is the largest movable cover in the engine compartment, and is mainly used for engine inspection and maintenance. The main structure includes 3 frames 1, the upper cover plate of the air inlet 2, the sealing belt 3, the front sealing plate 4, the screen assembly 5, 9 frame 6, the upper stringer 7, 10 frame 8, the skin assembly 9, and the oblique beam 10 , end frame 11, rear lip 12, lock assembly 13, engine air intake assembly 14, lubricating oil air intake assembly 15, lubricating oil radiator fairing 16, ice and snow separation channel assembly 17, joint reinforcement 18, connection Parts such as joint 19. Among them, the sealing belt 3 is designed as a rubber material; the front sealing plate 4, the screen assembly 5, the frame ...

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Abstract

The invention relates to the field of aircraft manufacturing, and provides an aircraft engine compartment air inlet flue fairing. The aircraft engine compartment air inlet flue fairing comprises a 3 frame, an air inlet flue upper cover plate, a sealing belt, a front sealing plate, a screen component, a 9 frame, an upper long joist, a 10 frame, a skin component, an oblique beam, an end frame, a rear portion lip, a lock component, an engine air inlet flue component, a slide oil air inlet flue component, a slide oil cooler fairing, an ice and snow separation channel component, a connector reinforcing piece and an attachment joint. The aircraft engine compartment air inlet flue fairing effectively solves the problems that the air inlet flue fairing interferes with a blade, ice zone flight icing is caused, an ice and snow separation channel is small in structural space, and the shape of slide oil cooler air inlet flue is complex and is difficult to form, and fully meets the installation and use requirements of a new aircraft engine.

Description

technical field [0001] The invention relates to the field of aircraft manufacturing, in particular to an air intake fairing of an aircraft engine compartment. Background technique [0002] The original Y12 series aircraft used older engines. The engine compartment is designed as a semi-monocoque structure. The lower fairing adopts traditional structural design, and the opening method of the lower fairing adopts the rear hinge connection method to open. The air intake spoiler in the lower fairing is designed as a whole, and the rear side drainage part is designed as a whole with the front part. The ice and snow separation channel at the rear of the air inlet is designed in the form of a square cross section. [0003] Since the YF aircraft adopts a new engine, the new engine is very different from the original engine of the Y12 aircraft, and the number of engine blades has been increased to five. The inlet fairing interferes with the blades when it is opened; the connectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D29/00B64D33/02
Inventor 刘锐刘永胜高万春张余
Owner HARBIN
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