Devices for preventing the spread of sparks

A technology of sparks and hydraulic joints, applied in transportation and packaging, pipes/pipe joints/fittings, aircraft lighting protectors, etc., can solve the problems of composite materials or non-conductive fuel tanks accumulating and depositing static electricity

Active Publication Date: 2016-04-06
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, composite or non-conductive fuel tanks may accumulate static electricity deposits as the aircraft flies through the air

Method used

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  • Devices for preventing the spread of sparks
  • Devices for preventing the spread of sparks
  • Devices for preventing the spread of sparks

Examples

Experimental program
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Effect test

Embodiment Construction

[0056] Such as figure 1 As shown in , a commercial aircraft 100 generally consists of a fuselage 102 , wings 104 including hydraulic lines 106 and flaps 108 . Flaps 108 are placed on wing 104 to provide flight control for the aircraft. Such as figure 2 As shown in , hydraulic lines 106 may pass through wings 104 of the aircraft and may include one or more hydraulic connections 110 . These hydraulic lines 106 may control flaps 108 or other control structures of the aircraft.

[0057] image 3 A cross-sectional view of one embodiment of the improved device is shown. As shown in this figure, hydraulic connections 110 generally consist of hydraulic joints 112 positioned generally around hydraulic lines 114 , 116 . In this illustration, hydraulic coupling 112 is a connector for connecting first section 114 of hydraulic line 106 to second section 116 . The first section 114 and the second section 116 of the hydraulic line 106 may be secured by swaging or any other method gene...

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PUM

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Abstract

Described herein is a novel method and apparatus for preventing spark propagation from a hydraulic joint to a surrounding medium, such as a fuel source. The hydraulic joint includes a fitting and a tube. A tip seal may be placed about the edge of the hydraulic fitting or a sleeve may be placed about the joint, each resulting in an independent mechanical barrier between the joint and surrounding medium, thereby preventing spark propagation to the surrounding medium.

Description

technical field [0001] The present disclosure relates to hydraulic joint safety devices, particularly for use in aircraft or other aircraft. Background technique [0002] In modern commercial aircraft, fuel is traditionally stored in the wings. A number of hydraulic lines may pass through the fuel storage area to provide power and control to hydraulic power components such as flaps. These hydraulic lines require many joints to connect various lengths of hydraulic tubing to each other, to other joints and to bulkhead panels and to conduct hydraulic fluid. During operation of the aircraft, it is possible that an electrical spark may develop between the hydraulic lines and the joints and propagate to the fuel tank, resulting in a potential source of ignition. This risk is contained or prevented in a number of ways, and this disclosure describes an optional improved method and apparatus for preventing sparks from propagating from the joint to the fuel tank. [0003] The Feder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L25/03B64D45/02B64D37/32
CPCB64D37/32B64D45/02F16L25/03Y10T29/49227Y10T137/0402
Inventor M·E·罗拉鲍格J·P·欧文B·A·约翰逊E·W·杜韦尔
Owner THE BOEING CO
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