The window seat on an airplane is a sought after section, but a new design could make it the least favorite spot.

Airbus has filed a patent that suggests replacing the large engines under the wing with 'multi-fan jet engines' that wraparound the airplane's fuselage.

This design could scoop up air and push it over the outside engine to provide extra thrust, but the engine nacelles would block the sky-high views flyers enjoy from the window seat.

Scroll down for video

Airbus has filed a patent that suggests replacing the large engines under the wing with 'multi-fan jet engines' that wraparound the airplane's fuselage. This design could scoop up air and push it over the outside engine to provide extra thrust, but the engine nacelles would block the sky-high views flyers enjoy from the window seat

WHAT NEW TECHNIQUES DOES AIRBUS PROPOSE IN THE PATENT? Airbus has filed a patent for a design that replaces the two large engines under the wing with 'multi-fan jet engines' that wraparound the airplane's fuselage. The design implies using a collection of smaller fans in place of the one massive one in each engine. Geared rings could be added on each fan that transmit torque directly or indirectly to one another while controlled by adjustable linear actuators. These components are more accessible and will allow personnel to easily inspect and service the fans. This design would ultimately be lighter, as there will be no need for the heavy gearboxes and shafts that normally sit adjacent to the fans and will free up a lot of space. Advertisement

Aircraft manufactures are constantly working towards improving propulsive efficiency without having to alter the design of the plane.

'In the aeronautical industry, the current trend in turbofan design is to increase the bypass ratio in order to improve fuel consumption through increased propulsive efficiency and to reduce noise on ground,' reads the patent published on Espacenet.

'In conventional turbofan engines, the pursuit of higher propulsive efficiency requires increasing the fan diameter in order to produce a higher by-pass mass flow at lower slipstream velocities.'

Some will say that most airliners use jet engines, but they actually use ones that look like jet engines and are really just a turbofans, reports Gizmag.

The difference between the two is that a jet engine uses thrust of the exhaust to maneuver.

This method works great in small fighter planes, but to use it for a commercial airliner would just burn too much fuel.

A turbofan engine has a turbo jet engine as its core and the thrusts move the craft but uses a massive fan on the front to scoop up air and pushes it over the outside engine to give the plane extra thrust.

According to Airbus, the quest for more powerful and efficient engines has led to larger and larger turbofans that are rapidly approaching design limitations.

The multi-fan engine could be mounted to the fuselage of the aircraft, this will allow the fans to scoop up airflow and move it over the engines, giving the plane an extra thrust.

'Overall propulsive efficiency of a multi-fan engine (pictured) with counter-rotating fans may be higher than multi-fan engines with co-rotating fans due to recovery of rotational energy from the counter-rotating wakes,' reads the patent

But with this design, flyers will not be able to catch the sites from the sky anymore, as their view will be blocked by the engine nacelles.

Airbus also proposes a design that replaces the massive fan with a group of smaller ones, although this isn't a new concept, the firm has added some details in the patent that haven't been considered before.

'A multi-fan engine including a gas turbine engine, a casing and fans encased by geared rings, which connect with the geared rings of an adjacent fan(s) such that the rotation of one fan rotates the other fans,' states the patent.

Airbus's new patent proposes a way to increase propulsive efficiency without having to alter the design of their planes. The design would remove the large engines located under the wings and wrap them around the cabin of the plane

'Intermediate gears may prove the connection between adjacent geared rings, wherein the intermediate gears are retracted by linear actuators to disengage the intermediate gears from the geared rings and thereby disengage the fans from each other.'

Intermediate gears and geared rings are more easily accessible than the shafts and gear boxes used in the current transmission devices between fans.

AIRBUS FILES PATENT FOR INTERACTIVE PLANE WINDOWS The air passengers of the future will be able to see the sights of the world without even stepping off the plane. Airbus has filed for a US Patent for a new smart aircraft which is set to revolutionise the travel industry, with sweeping windows and interactive glass so passengers can learn about the sights they see below. The patent, filed in 2015, features touchscreen windows for passengers so they can tap key attractions as they fly overhead and find out what they are. According to Skift, the high-tech windows are described as a 'method for interactive visualization of information in an aircraft cabin.' The vision is to create an aircraft with plenty of light and opportunity for enjoying the skies. Images released by Airbus show the planes will be kitted out with seemingly transparent walls, which will in turn be fitted with touchscreen technology. Passengers will have plenty of room to stretch out while enjoying the views, with chairs that allow for greater recline and leg space. Advertisement

By implemented the geared rings to each fan, the amount of torque can be controlled by adjusting linear actuators.

This design would ultimately be lighter, as there will be no need for the heavy gearboxes and shafts that normally sit adjacent to the fans and will free up a lot of space.

Using these components will also allow inspections and servicing of the fans to be more manageable.

Intermediate gears and geared rings are more easily accessible than the shafts and gear boxes used in the current transmission devices between fans. Using these components will also allow inspections and servicing of the fans more manageable

The patent also describes moving the engine nacelles from under the wings to inside, or to the rudder or the fuselage, where the fans would hug close to the skin.

This will allow the engines to pick up the air stream boundary layer flowing over the aircraft, which is another way to increase efficiency.