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Auxiliary equipment for aircraft door operation

A technology for auxiliary equipment and aircraft, applied in the direction of aircraft doors, mechanical equipment, actuator accumulators, etc., can solve the problems of unable to prevent gas leakage, characteristic changes, etc., and achieve high reliability and perfect separation effect

Active Publication Date: 2019-02-05
RATIER FIGEAC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, since the second piston is used to move in the cylinder, the gas cannot be prevented from leaking out of the chamber filled with gas, inevitably leading to a change in the characteristics of the system described and illustrated in this document

Method used

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  • Auxiliary equipment for aircraft door operation
  • Auxiliary equipment for aircraft door operation
  • Auxiliary equipment for aircraft door operation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] figure 1 A first embodiment of an aircraft door opening aid with cushioning according to the invention is shown. In this figure two modules can be seen connected to each other.

[0040] exist figure 1The first module shown below has an overall cylindrical tubular body 2 . The tubular body 2 is closed at a first end by a cap 4 carrying the fixture. In the illustrated embodiment, the fastening device is formed by a connecting yoke 6 . figure 1 Only one edge of the cover 4 is shown. The lid also comprises a disc closing the tubular body 2 and extending perpendicularly to the longitudinal axis of the tubular body 2 .

[0041] The connecting yoke 6 comprises a base fixed to the cover 4 or integral with the cover 4 . Two branches 8 extend from the base of the connecting yoke 6 . These branches 8 are parallel to each other and each have a hole aligned to be able to receive a shaft (not shown). The connecting yoke 6 is thus able to receive between its branches 8 the ...

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PUM

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Abstract

A device according to the present invention comprises: a tubular body (2) and a first attachment means (6), a piston (30) provided with a rod (12) connected to a second attachment means (10), the piston (30) sliding inside the tubular body (2) and defining inside said body a working chamber filled with hydraulic fluid, an accumulator comprising a rigid shell (20) inside of which a separation means (40) is located, defining a compensation chamber (42) that is filled with hydraulic fluid and is in communication with the working chamber, and a chamber (47) filled with pressurized gas, the rigid shell (20) being a metal shell produced by means of welded assembly and the accumulator being made such as to obtain an entirely welded enclosure (47) containing the gas.

Description

technical field [0001] The invention relates to an aircraft door operation aid, possibly integrating a damper. Here, "door operation" refers to the opening of the door or the closing of the door, and possibly the opening and closing of the door. Background technique [0002] Depending on the type of aircraft, there are different types of doors for allowing access to the aircraft. Thus, for example, a hatch is adapted to the dimensions of the aircraft. However, on an aircraft used to transport passengers, the doors used to board and disembark passengers are different from the doors used to load and unload passenger luggage. The emergency exit door may also have a different structure than the doors normally used for boarding an aircraft. [0003] The present invention more particularly relates to aircraft doors pivoting about an axis that is substantially horizontal (of course substantially horizontal when the respective aircraft is on the ground), i.e. doors whose operatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/06F15B1/10B64C1/14
CPCB64C1/1407F15B2201/3153F15B2201/3158F16F9/065F15B1/04
Inventor B.普劳泽特H.伯尔贡尼尔E.德尔博斯
Owner RATIER FIGEAC