Bringing a multi-component jet into the visual field of a user

1. A combination of an aircraft cabin and a device for supplying a free-jet to the visual field of a user in the aircraft cabin, wherein the device comprises:

a line;

an outlet nozzle located within the aircraft cabin;

a transport unit;

an additional line;

an additional outlet nozzle;

an additional transport unit; and

a storage tank of an oxygen-containing component and a container of a water-containing component, the oxygen-containing component and the water-containing component being suppliable to the line and the additional line;

wherein a mixture of the oxygen-containing component and the water-containing component is transportable by the transport unit through the line to the outlet nozzle, so that the mixture streams through the outlet nozzle in the form of a free-jet directly toward the visual field of the user such that the free-jet is supplied to the visual field with an injection jet axis speed of at least 0.5 meters per second (m/s) to increase oxygen concentration and atmospheric humidity at the visual field;

wherein a mixture of the oxygen-containing component and the water-containing component is transportable by the additional transport unit through the additional line to the additional outlet nozzle, so that the mixture streams through the additional outlet nozzle directly toward the visual field of another user;

wherein the device is adapted in such a way that the mixture exiting the outlet nozzle is supersaturated, so that the water-containing component at least partially condenses after the mixture has exited the outlet nozzle,

the free-jet not being guided by a conduit between the outlet nozzle and the visual field of the user, and

wherein the device is arranged behind a wall of the aircraft cabin such that only the outlet nozzle protrudes from the wall, the wall being a lateral wall or a ceiling wall of the aircraft cabin.

2. The combination of an aircraft cabin and the device according to claim 1 , wherein the storage tank of the oxygen-containing component is couplable with the line.

3. The combination of an aircraft cabin and the device according to claim 1 , wherein the container of the water-containing component is couplable with the line.

4. The combination of an aircraft cabin and the device according to claim 3 , wherein the container of the water-containing component is heatable.

5. The combination of an aircraft cabin and the device according to claim 1 , wherein an area between the outlet nozzle and the visual field of the user is free of components of the device.

6. The combination of an aircraft cabin and the device according to claim 1 , further comprising:

a controllable and/or regulatable nozzle and/or hose element in the vicinity of the outlet nozzle.

7. The combination of an aircraft cabin and the device according to claim 1 , further comprising:

a speed regulating unit that is set up to regulate a speed of the free-jet.

8. The combination of an aircraft cabin and the device according to claim 1 , further comprising:

a heater set up to heat the free-jet in the vicinity of the line and/or the outlet nozzle.

9. The combination of an aircraft cabin and the device according to claim 1 , which is set up for attachment to and/or in demarcated areas in a cabin or room.

10. The combination of an aircraft cabin and the device according to claim 1 , with a directional adjustment feature to regulate the direction in which the free-jet exits the outlet nozzle.

11. The combination of an aircraft cabin and the device according to claim 1 , with a concentration adjustment feature for regulating the concentration of oxygen-containing component and/or water-containing component in the free-jet.

12. The combination of an aircraft cabin and the device according to claim 1 , further comprising a suction unit to suck off excess oxygen.

13. An aircraft comprising a combination of an aircraft cabin and a device according to claim 1 for supplying a free-jet to the visual field of a user.

14. The combination of an aircraft cabin and the device according to claim 1 , wherein the free-jet is supplied to the visual field with an injection jet axis speed of at least 1 m/s.

15. A method for supplying a free-jet to the visual field of a user in an aircraft cabin, wherein the method comprises:

arranging a device for supplying the free-jet to the visual field of the user in the aircraft cabin, the device comprising a line, an outlet nozzle located within the aircraft cabin, an additional line, an additional outlet nozzle and a storage tank of an oxygen-containing component, the device being behind a wall of the aircraft cabin such that only an outlet nozzle connected to the line protrudes from the wall, the wall being a lateral wall or a ceiling wall of the aircraft cabin;

supplying the oxygen-containing component from the storage tank and a water-containing component to the line and the additional line;

transporting a mixture of the oxygen-containing component and water-containing component through the line to the outlet nozzle located within the aircraft cabin,

streaming out the mixture through the outlet nozzle in the form of a free-jet directly toward the visual field of the user such that the free-jet is supplied to the visual field with an injection jet axis speed of at least 0.5 m/s to increase oxygen concentration and atmospheric humidity at the visual field, and

supersaturating the mixture exiting the outlet nozzle, so that the water-containing component at least partially condenses after the mixture has exited the outlet nozzle,

the free-jet not being guided by a conduit between the outlet nozzle and the visual field of the user;

transporting a mixture of the oxygen-containing component and water-containing component through the additional line to the additional outlet;

streaming out the mixture through the additional outlet nozzle in the form of a free-jet directly toward the visual field of another user.

16. The method according to claim 15 , further comprising using oxygen or air as the oxygen-containing component.

17. The method according to claim 15 , further comprising using water or water vapor as the water-containing component.

18. The method according to claim 15 , wherein the free-jet is supplied to the visual field with an injection jet axis speed of at least 1 m/s.

19. A device for supplying a free-jet to the visual field of a user in an aircraft, wherein the device comprises:

a line;

an outlet nozzle located within the aircraft;

a transport unit;

an additional line;

an additional outlet nozzle;

an additional transport unit; and

a storage tank of an oxygen-containing component and a container of a water-containing component, the oxygen-containing component and the water-containing component being suppliable to the line and the additional line;

wherein a mixture of the oxygen-containing component and the water-containing component is transportable by the transport unit through the line to the outlet nozzle, so that the mixture streams through the outlet nozzle in the form of a free-jet directly toward the visual field of the user such that the free-jet is supplied to the visual field with an injection jet axis speed of at least 0.5 m/s to increase oxygen concentration and atmospheric humidity at the visual field;

wherein a mixture of the oxygen-containing component and the water-containing component is transportable by the additional transport unit through the additional line to the additional outlet nozzle, so that the mixture streams through the additional outlet nozzle directly toward the visual field of another user; and

wherein the device is adapted in such a way that the mixture exiting the outlet nozzle is supersaturated, so that the water-containing component at least partially condenses after the mixture has exited the outlet nozzle,

the free-jet not being guided by a conduit between the outlet nozzle and the visual field of the user,

the storage tank of the oxygen-containing component not being connected to the container of the water-containing component except through the transport unit.

20. A device for supplying a free-jet to the visual field of a user in an aircraft cabin, wherein the device comprises:

a line;

an outlet nozzle located within the aircraft cabin;

a transport unit;

an additional line;

an additional outlet nozzle;

an additional transport unit; and

a storage tank of an oxygen-containing component and a container of a water-containing component, the oxygen-containing component and the water-containing component being suppliable to the line and the additional line;

wherein a mixture of the oxygen-containing component and the water-containing component is transportable by the transport unit through the line to the outlet nozzle, so that the mixture streams through the outlet nozzle in the form of a free-jet directly toward the visual field of the user such that the free-jet is supplied to the visual field with an injection jet axis speed of at least 0.5 meters per second (m/s) to increase oxygen concentration and atmospheric humidity at the visual field;

wherein a mixture of the oxygen-containing component and the water-containing component is transportable by the additional transport unit through the additional line to the additional outlet nozzle, so that the mixture streams through the additional outlet nozzle directly toward the visual field of another user; and

wherein the device is adapted in such a way that the mixture exiting the outlet nozzle is supersaturated, so that the water-containing component at least partially condenses after the mixture has exited the outlet nozzle,

the free-jet not being guided by a conduit between the outlet nozzle and the visual field of the user,

wherein the line comprises a flexible hose and the outlet nozzle is fixable to the head of the user.