L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des

L'air Liquide, Societe Anonyme a Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude

L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Richard Zapata

Jean-Michel Cazenave

Jean Dehayes

Olivier Vandroux

Jean Arnault

Pierre Pelloux-Gervais

Stéphane Lessi

Michel Bres

Method and system on board an aircraft for the production of an oxygen-enriched gas stream from an oxygen/nitrogen gas mixture, particularly air, comprising at least one adsorber containing at least one adsorbent for adsorbing at least some of the nitrogen molecules contained in the oxygen/nitrogen feed mixture, characterized in that the adsorbent comprises a faujasite-type zeolite, having a Si/Al ratio of 1 to 1.50, exchanged to at least 80% with lithium cations. Aircraft equipped with such a system, in particular an airliner, especially an airliner of the long-range, large-capacity type.

On-board oxygen production system for aircraft, in particular long-range aircraft

According to this process, there is supplied to the passengers a first fraction of air enriched in oxygen from independent supply elements, in particular high pressure cylinders (), during a descent phase of the aircraft between a normal cruising altitude and an intermediate re-routing altitude. There is moreover compressed air taken from a source of compressed air belonging to the aircraft, to produce (in) a second fraction of the air enriched in oxygen which is delivered to the passengers, at least during a phase of stabilized flight of the aircraft, adjacent the re-routing altitude, greater than 5,500 meters.

Process and installation for the distribution of air enriched in oxygen to passengers of an aircraft

According to this process, there is supplied to the passengers a first fraction of air enriched in oxygen from independent supply elements, in particular high pressure cylinders ( ), during a descent phase of the aircraft between a normal cruising altitude and an intermediate rerouting altitude. There is moreover compressed air taken from a source of compressed air belonging to the aircraft, to produce (in ) a second fraction of the air enriched in oxygen which is delivered to the passengers, at least during a phase of stabilized flight of the aircraft, adjacent the re-routing altitude, greater than 5,500 meters.

The valve slide, which is slidably mounted in a housing of a valve member, comprises a central part including a shaped part cooperating with a first joint between a first zone and a second zone of the housing, and an end part including a peripheral joint between the second zone and a third zone, the three zones being in communication with three respective circuits of a pneumatic distribution block.

Pneumatic control valve

To compensate for load losses in a downstream part of a line for supplying gas under controlled pressure through a valve which is controlled by a pick-up upstream of the line, the pressure read by the pick-up is supplied by a pressure intake which is formed in a tube extending in the line and which is angularly orientable with respect to the flow of gas delivered. Application for example to systems of supplying breathing gas to the passengers of an airship.

Process and apparatus for controlling a gas pressure and system for

The invention relates to a hood for protecting against smoke and hypoxia which is of use more particularly in the protection of flying personnel in aircraft. This hood comprises, at its base and within the fluidtight cover a closed tube (3) surrounding the neck of the wearer and containing a reserve supply of oxygen under pressure, and means (11-13) for automatically putting, when the hood is donned, the interior of this tube in communication with an automatic supply of oxygen to the wearer of the hood.

Growing community of inventors

Sassenage, France

Richard Zapata