DEVICE FOR ASSISTING THE OPERATION OF AN AIRCRAFT DOOR

摘要

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.

主权项

1. Device for assisting the operation of an aircraft door, comprising:
a tubular body (2) associated with a first fastener (6), a piston (30) provided with a rod (12) connected to a second fastener (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 is located a separator (40) defining a compensation chamber (42) filled with hydraulic fluid and in communication with the working chamber, and a chamber (47) filled with pressurized gas, wherein the rigid shell (20) is a metal shell formed by welded assembly, and the separator in the accumulator comprises a metal bellows (40) welded at a first end to the rigid shell (20) of the accumulator which has a circular cylindrical shape, around an opening of said shell which allows communicating with the working chamber (31), and at a second end to a base (30′), so as to obtain an entirely welded enclosure (47) containing the gas.