Planes get oxygen like?

The sky is high, the air is very thin but when we go to the plane, we do not feel difficult to breathe. So where does the air in the plane come from?

In the early days of the invention of the aircraft, the air in the aircraft compartment originated from the atmosphere outside the aircraft compartment.

The vortex engine stimulates air compressors to operate, making the outer thin air add pressure to the interior of the aircraft compartment (Photo: ghs)

Since the plane is not so high, the aircraft compartment is not closed, the oxygen in the air is in the aircraft compartment.

The plane did not fly so the cabin was not closed, the oxygen in the air in the aircraft compartment was a little less than on the ground but did not affect the human body much.

The flight height of modern aircraft is very high, if the natural oxygen supply method is applied, it is not enough to meet, because the sky is 1500m high, the oxygen content is only 15.8% compared to the surface. Sea surface, obviously pilots and passengers cannot breathe normally. So aircraft designers can only think of ways to get oxygen from the air, this way of providing oxygen is called how to open the oxygen supply path.

The oxygen supply process of opening the way to supply oxygen is not complicated.The vortex engine stimulates the compressor to operate, causing the external thin air to add pressure to the interior of the aircraft compartment, eventually reaching a pressure close to the ground, at which time the oxygen content in the air Not much different from on the ground, enough for the pilots and passengers to breathe normally .