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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/116057
Kind Code:
The invention relates to an air deflector system that can be installed in motor vehicles through minor conversion of the vehicle. Starting from the front of the vehicle, the first component of the air deflector system is a wind grille (1) that contributes to the breaking of the pressure of the air mass and is the first element that directs the airflow. Its outlet opening is expediently angled at 45° toward the ground. The second component getting in contact with the air mass is the deflector wall (2) that leads the air actually on the stabilisers (3) located under the motor vehicle. They are expediently C profiles with their open side facing the ground. The steering blades (4) are placed on the rear third of the stabilisers (3), they are linked to the steering system of the motor vehicle and are turned at the same angle as the steered wheels.

VIDA, Laszlo (Szabadsagbokor 1/A, 4400 Nyiregyhaza, HU)
Application Number:
Publication Date:
June 20, 2019
Filing Date:
November 27, 2018
Export Citation:
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VIDA, Laszlo (Szabadsagbokor 1/A, 4400 Nyiregyhaza, HU)
International Classes:
B60V3/02; B60V1/18; B62D35/00; B62D37/02
Domestic Patent References:
Foreign References:
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1. An air deflector system, characterised in that it is having a wind grille (1) with an outlet opening angled at 45° towards the ground expediently on the complete front sur- face of the motor vehicle, followed by an inclined deflector wall (2) that directs the air mass in the stabilisers (3) extending along the entire length of the vehicle, and at least two steering blades (4) mounted in the last third of the end of the stabilisers (3).

2. Air deflector system according to claim 1, characterised in that the wind grille (1) has an outlet edge with adjustable angle in another preferred embodiment.

3. Air deflector system according to claim 1, characterised in that the stabiliser corn- prises of C profiles, cut to halves longitudinally, with their open side facing the ground.


The purpose of the invention presented here is the further development of the cars of today according to the operating principle of flying snakes living in nature. It is fast, economic, safe and comfortable, can be driven easily and safely even under bad weather conditions, and it is environmentally friendly. Scope of application of the subject invention: for everyday use, under extreme weather conditions and unfavourable road conditions, using ground and air steering simultaneously. It can travel at a speed above the average in a comfortable and safe manner. The higher is the speed of the vehicle constructed by me (Fig. 1), the more air flows into the air channels, lifting the vehicle from a speed of about 60 km/hour and making it glide gradually in the air. The wheels stay in touch with the ground, but the load on them decreases. Steering is ensured by controlling the front wheels as well as the direction angle of the out- flowing air by means of a wind blade that is turned to the same direction and angle as the wheels.

This means that a dream that seemed to be unachievable in the automotive industry so far has been fulfilled. The invention helps to minimise the resistance to rolling and to utilise the airstream. Gusts of wind even above 100 km are not sensed in the car and do not affect its driving stability. Natural effects, the airstream caused by cars passing by, gusts of wind ex- perienced on bridges or in tunnels, as well as the quality of the road do not have any effect on driving. Noise and shocks caused by defects of the road surface are drastically reduced. It is almost impossible to remove the car from its stable position.

Through this technology, fuel consumption can be reduced by about 20%. The service life of the running gear increases since the weight of the car body glides in the air and only a part if it is loaded on the tyres. Road defects are also sensed only partially since about 60% of the shocks is absorbed, i.e. people with spinal complaints can also drive or ride this kind of vehicles in great comfort. Its maximum speed is unknown, but it was tested at a speed of 160 km/h on the runway of Nyiregyhaza Airport. Its contribution to environmental protection is excellent, since the emission of harmful gases is reduced in parallel with the decrease of fuel consumption. The service life of tyres increases considerably, which also contributes to the reduction of environmental pollution and the risks of accidents. The wide tyres used on alloy wheels cannot be used on the car developed by me, because they significantly impair the stability of the vehicle.

The dynamic stability of the vehicle is very good on slippery, slimy roads, even by a sudden change of direction. It is easy to manoeuvre, even when the wheels leave the solid ground, since then the control of air becomes dominant. Its braking distance is shorter, and it does not lose its controllability even by hard braking or a sudden change of direction. The car glides in the air and the air channels installed under the car body provide for the stability of the car. In proportion to growing speed, the lift force exerted on the car becomes higher and higher, reducing adhesion and the resistance to rolling. Manoeuvrability is ensured partly by the front wheels, and partly by the steering blades located at the rear of the vehicle. One of the main worries of drivers is the skidding of their car and the loss of its manoeuvrability. This cannot occur in the case of the vehicle invented by me, since air control takes over the task of manoeuvring when the wheels lose their traction. The driver does not notice the change of road conditions or when the wheels leave the solid ground, since it remains easy to keep the steering wheel.

By hard braking during the tests, I had the feeling like the car would dig into the asphalt, and the braking distance was shorter thereby. The car did not lost its controllability when it was tested by braking from a speed of 100 km/h on a road covered by fresh snow, and the braking distance was not more than 40 m. This can be explained by the fact that during braking the front of the vehicle is closer to the ground, blocks the inflow of air and generates vacuum, which presses down, decelerates and brakes the car, as well as keep its motion straight.

As you can see from the above findings, if the method developed by me is used, the stability of cars is safe even under extreme conditions. The motion of the car stays stable and smooth, this is why vehicles converted through this technology are suitable for the transport of people with spinal injury or other patients requiring special delivery circumstances. A strong, stormy wind does not affect the progression of the car (it was tested in a wind of 120 km/h), and the driver does not have to downshift the gear like in the case of a common car - the visibility conditions are only to be taken into account - since a strong wind clearly helps the forward moving of the car by transforming the air flowing under it into energy. This kind of car could be used efficiently in regions where storms or tsunamis occur frequently. In knowledge of the test results, I have become sure that by means of appropriate preparation this vehicle could be made suitable for cutting the present world record of speed. However, I have swept away this idea due to the necessary huge costs.

This technology could be used well in the construction of self-driving cars, since road and weather conditions would not affect their progression. Future cars will be manufactured using this technology, and the technology can also be implemented through serious conversion in the cars produced nowadays. However, there will surely be people who will not like sense of flying.

For almost one year, test runs were conducted with the prototype made by me. When I re turned to the driving of a traditional car, backache due to a lot of small road defects was almost insufferable at first, and I was anxious to get out of the vehicle. In two weeks I grad- ually got used to driving a traditional car. This experience also made me feel the difference in the driving of the two cars and the convenience of my tested car.

Air deflector system

The invention relates to a system that can be used in motor vehicles, preferably in passenger cars. Using this system, friction generated during driving can be reduced, which results in the decrease of fuel consumption and the improvement of the driving stability of the motor vehicle.

There are numerous inventions aiming at the reduction of fuel consumption of motor vehi- cles, but they usually require large financial investment and considerable conversion of im- portant components of motor vehicles. One method of reducing fuel consumption is the re- duction of the weight of the vehicle, an example of which is the invention“LIGHTWEIGHT AUTOMOBILE REDUCTOR CASING” with registration number CN206918207. The implementation according to this utility model makes the motor vehicle considerably easier by using more slender components, but this solution has the disadvantage that it also reduces the safety provided by the body and the controllability at high speeds.

Our purpose is to create a universal system that is compatible with most motor vehicles and can be used through minor conversion. The air deflector system means complex conversion affecting the front and the bottom of the vehicle, making it possible for the air mass to flow under the vehicle and to reduce the mass loaded on the running gears. Our solution is based on the recognition that the air mass accumulating in front of the vehicle or diverted unnecessarily can also be used for the reduction of the weight of the motor vehicle, i.e. it is necessary to carry and move less dead weight while keeping the load to be delivered moving.

The subject-matter of the invention is an air deflector system that can be used primarily on passenger cars by the conversion of the car in the area of the front bumper. Starting from the front of the vehicle, the first component of the air deflector system is an air-collecting wind grille, expediently consisting of rectangular cuboid elements that also serve expediently for directing the air. Its material is preferably stainless steel and its main purpose is to break the air pressure. The inner edges of this grille structure are formed so that they are directed towards the ground at an angle of 45°. On the front of the motor vehicle, in the space behind the wind grille, there is a deflector wall tilted at an angle of at least 45°, directing the airflow under the vehicle, and the directed airflow passes through the stabilising air deflector C profiles under the vehicle towards the rear of the vehicle. At least two steering blades are installed in the last third of the C profiles behind the deflector wall, they are linked to the steering system of the vehicle and are turned at the same angle as the steered wheels.

The air deflector system according to the invention is capable to exert lifting force on the motor vehicle already at a speed of 30 km/h, reducing the load on the running gear and the friction. At a speed of 160 km/h, the motor vehicle is raised by about 7 cm.

Naturally, the above values change in proportion to the mass of the motor vehicle. Manoeuvra- bility at high speeds is ensured by the steering blades that are located at the area of the C profiles and keep the vehicle along the desired arc by directing the air at an adjustable angle.

According to another preferred embodiment of the air deflector system, the first component of the system from the front of the vehicle is a wind grille comprising of rectangular cuboid elements, an inlet edge with a fixed angle and an outlet edge with an adjustable angle.

Hereinafter the subject-matter of the utility model is described with the help of a schematic drawing, where:

Figure 1 : Air deflector system without a vehicle

Figure 1 shows the air deflector system according to the invention, which is to be mounted expediently on a passenger car. Wind grille 1 is to be mounted in place of the front bumper of the motor vehicle, deflector wall 2 is located behind it and is formed in an angle that ensures that the air mass is directed in the stabilisers located under the vehicle and made of C profiles running along the total length of the vehicle. Steering blades 4 are placed expediently in the rear third of the bottom of the vehicle, and they ensure driving stability and manoeuvrability by being turned at the same angle as the steered wheels of the vehicle.

The advantage of the air deflector system is that it reduces the fuel consumption of the motor vehicle by reducing its friction. Due to lower stresses, the service life of the running gear and the tyres increases, and the system attenuates the vibration caused by road defects.

Legend - wind grille

- deflector wall

- stabiliser

- steering blade