Unlock instant, AI-driven research and patent intelligence for your innovation.

Swivel axis, aircraft engine attachment and aircraft

A technology for engines and aircraft, applied in the field of improved rotary shafts, which can solve the problems of fixed, fail-safe shafts 40 leaving the main shaft 38, etc.

Inactive Publication Date: 2019-06-07
AIRBUS OPERATIONS (SAS)
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Furthermore, even if the fail-safe shaft 40 is inserted into the main shaft and held rotationally immobilized by a wrench to rotationally immobilize the main shaft 38, if the operator forgets to screw on the shaft equipped with its brake nut 52 of the system, then in operation, the fail-safe shaft member 40 may leave the main shaft member 38

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Swivel axis, aircraft engine attachment and aircraft
  • Swivel axis, aircraft engine attachment and aircraft
  • Swivel axis, aircraft engine attachment and aircraft

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0070] According to a first embodiment, the axial link 120 comprises a circlip and a first groove 112 and a second groove 114 . According to a second embodiment, the axial link comprises a retaining ring 116 and a groove 118 .

[0071] according to Figure 6A to Figure 6E The installation of the rotary shaft member 68 will now be described.

[0072] In a first step, the main shaft member 74 is inserted into the slide bearings 72, 72' and the ball coupling 70 (eg Figure 6A shown in ).

[0073] In a second step, the circlip 110 is positioned in the groove 112 of the fail-safe shaft 76 and the nut 82 is fitted onto the fail-safe shaft 76 (eg Figure 6B shown in ), until the end face 100 of the nut 82 abuts against the head 104 of the fail-safe shaft 76 and the circlip 110 is received in the groove 114 of the nut 82 (as Figure 6C as shown in ).

[0074] In the case of the retaining ring 116, the nut 82 is fitted onto the fail-safe shaft 76 until it begins to abut the head 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a swivel axis (68), an aircraft engine attachment and an aircraft. The swivel axis for an aircraft engine attachment, comprising a tubular main axis (74) which has, at a first end (74.1), a head (78) and, at a second end (74.2), a threaded portion (80) onto which is screwed a first nut (82). A fail-safe axis (76) is configured to be mounted to swivel inside the main axis (74). The fail-safe axis (76) has, at a first end (76.1), a head and (104), at a second end (76.2), a threaded portion (106) onto which is screwed a second nut (108). The fail-safe axis (76) is linked byan axial link to the first nut (82). Since the fail-safe axis is linked to the first nut, it is necessarily inserted into the main axis when the first nut is screwed onto the main axis.

Description

technical field [0001] The present application relates to an improved pivot axis for aircraft engine attachments. Background technique [0002] according to figure 1 and figure 2 In the configuration seen in , aircraft 10 includes several engine assemblies 12 positioned under wings 14 of aircraft 10 . [0003] The engine assembly 12 includes an engine 16, a nacelle ( figure 2 not shown), and a pylon 18 that ensures the link between the engine 16 and the rest of the aircraft 10 (in particular the wing 14). [0004] The pylon 18 includes a main structure 20 linked to the engine 16 by a rear engine attachment 22 , a front engine attachment 24 , and a pair of torque arms 26 responsible for bearing thrust loads. [0005] like image 3 As shown in , the rear engine attachment 22 includes a triangular plate 28 inserted between the main structure 20 of the pylon 18 and the engine 16 . [0006] The rear engine attachment 22 also includes a yoke coupling 30 secured to the main...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B64D27/26
CPCF16C2326/43B64D27/18F16C11/02F16C11/045F16C11/0614B64D27/404B64D27/40B64D27/406
Inventor 斯特凡·孔贝斯让·热利奥托马斯·德福雷阿德利纳·苏利耶伯努瓦·奥特乌
Owner AIRBUS OPERATIONS (SAS)