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

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

L'air Liquide Socié´á´anonyme à{grave Over ( )}Directoire Et Consell De Surveillance Pour L'Étude Et L'exploitation Des Procédés Georges Claude

Stéphane Lessi

Jean-Michel Cazenave

Nicolas Schmutz

Jean Dehayes

Olivier Vandroux

Richard Zapata

Jean Arnault

Didier Gaget

Isabel Lemaitre

The invention relates to a circuit for supplying oxygen to aircraft passengers. According to the invention, the line () used to supply pressurized oxygen to the passenger masks () comprises a motorized pressure regulator () which can be actuated in response to a pressure control signal () provided by an electronic control unit () according to a signal () that is representative of the cabin pressure ().

Circuit for supplying oxygen to aircraft passengers

The invention concerns a self-propelled vehicle, in particular an aircraft, comprising an onboard equipment such as an inerting system, means for vapour pollutant filtering () arranged between an air intake () connected to a compressed air source and an air outlet () connected to the equipment. The invention is characterized in that the vapour pollutant filtering means () comprise adsorption filtering means such as molecular sieve and/or activated carbon.

Self-propelled vehicle comprising an onboard equipment supplied with filtered air

Apparatus and methods of supplying a highly enriched oxygen gas steam on board an aircraft. The gas stream is generated by an oxygen concentrator which concentrates atmospheric air by using at least one adsorber. The adsorber is made of a faujasite zeolite and has a Si/Al ratio between 1 and 1.5. The faujasite zeolite is also exchanged with silver by about 10%. Once generated, the gas stream is supplied to the airways of a person onboard an aircraft.

Carrier-board system for the production of oxygen-enriched gas streams and method for supplying the airways of the occupants of an aircraft

Methods of supplying an oxygen rich mixture to the occupants of an aircraft. The mixture is produced through a pressure swing adsorption system which has both an adsorption/production phase and a desorption/regeneration phase. The duration of one cycle of the adsorption system is less than ten seconds. The system makes use of a high-performance adsorbent which has a particle size of less than about 0.8 mm. The feed air which is introduced to the system has an inlet temperature between 50&#xb0; C. and 90&#xb0; C.

Method for supplying passengers of an aircraft with an oxygen-rich gas mixture

An apparatus and a method for fluid distribution and control. A valve body defines at least two pairs of chambers which are each connectable to an external fluid circuit. A mobile structure, which moves according to a controlling unit, forms an internal penetrating passage. An internal bearing surface, which is located at the first end of the internal passage, is capable of cooperating in a sliding manner with a stationary piston head. The internal bearing surface may move beyond either side of the piston head. When the mobile structure is in an extreme position, an end chamber of the valve body is in fluid communication with the internal passage. When coupled with a PSA adsorber system, the system is capable of supplying oxygen enriched air to an occupant of an aircraft.

Fluid distribution and control valve and use thereof to supply enriched air to the occupants of an aircraft

An on-board adsorber and method for delivering oxygen on an aircraft that has a squat and compact configuration with a mass of adsorbent with a height to diameter ratio ranging from 0.8 and 2, and the ratio of the cross-sectional area S of the mass of adsorbent to the cross-sectional area S of the central duct ranges from 80 to 110.

On-board adsorber and method for producing and delivering oxygen

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.

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Grenoble, France

Stéphane Lessi