Systems for the generation, storage, and distribution of gases
for onboard and ground applications
The aerospace market is taking off. In 35 years, air traffic has increased by a factor of six. In the years ahead, aircraft manufacturers may have to produce as many as 2 000 commercial airplanes a year. These airplanes are subject to increasingly stringent environmental requirements and meet optimal safety standards.
Through its expertise in gas separation and control techniques, Air Liquide contributes to these developments by designing systems for the generation, storage, and distribution of gases, for both onboard and ground applications. Our OBOGS and OBIGGS solutions and our respiratory protection systems are found on board civil and military aircraft all over the world.
Air Liquide’s portable oxygen equipment is used for therapeutic purposes and first aid on commercial flights. Its innovation lies in the pulse dose, whereby oxygen is only consumed when the passenger in need inhales. The onboard oxygen cylinders thus offer a fivefold increase in autonomy.
By producing and regulating the flow of oxygen-enriched air aboard military aircraft, Air Liquide's OBOGS standalone generating system covers the respiratory needs of pilots, with the regulator providing protection against acceleration. Many military programs choose the OBOGS for the performance delivered by its exclusive electromechanical technology.
Air Liquide’s OBIGGS is a standalone system for producing nitrogen on board aircraft and helicopters that works through filtration by polymer fibers. To prevent fire or explosion, nitrogen replaces the oxygen in the fuel tank, preventing kerosene vapors from igniting.
In order to meet the challenging logistical constraints of the armed forces, Air Liquide has developed ground services for aeronautics: mobile nitrogen generators for inflating landing gear shock struts or for inerting kerosene tanks, mobile oxygen generators for filling back-up cylinders, etc.
Air Liquide masters two mini cryogenic cooling techniques for infrared detectors. Joule-Thomson cooling effect allows for rapid cooling, on the ground or on board, under severe constraints.
Two numbers tell the story: + 100 000 flight hours completed by our OBIGGS aboard helicopters and by our OBOGS on Rafale fighter jets. Almost 80.000 protective breathing equipments for crew delivered.
Our products meet NATO requirements. In addition, Air Liquide’s expertise meets military specifications as well as special-purpose uses (aircraft carriers).
We master the entire gas supply chain for aeronautics, from generation to storage, and from maintenance to training.