According to the International Classification of Patents the object of the invention has been classified with a symbol B 64 L 35/02 which defines the transmission of power from the driving system onto propellers or rotors, i. e. the arrangement of transmission elements characteristic of a certain type of the driving system.

Technical problem Mechanical problem addressed by this invention consists in the following: what design of the device for power transmission should be used from the driving system onto the two rows of propellers or rotors that are mutually vertically movable, in order to decrease the force of reaction. The technical problem is solved by the proposed device for helicopter drive power transmission from the driving system onto the two vertical rows of propellers or rotors that continuously draw near or away from each other.

State of the Art All previous helicopter designs for the cargo lifting and moving through the air require a lot of power for lifting and maintaining of cargo in the air, as well as for overcoming the reaction force of the whole mass created as a result of thrust caused by the action of propellers due to a large numbers of revolutions and propeller inclination. This is a major disadvantage of the above known solution.

According to this application the objective of the solution is to design such a device that will ensure the transmission of power. The objective of the Invention solution is to design a device which will ensure helicopter drive power transmission onto the two rows of propellers or rotors that continuously draw near or away from one another, which owing to the gravitational force being converted into circular motion ensures considerably smaller power consumption needed for maintenance in the air and transport of cargo through the air.

Essence of the Invention The device consists of a vertical casing in which two parallel horizontal axles are slotted and interconnected on the outer surface of the casing via chain transmission. Bolts fasten the casing onto the main board in which a driving axle is slotted for initial start-up with gear that mesh with the lower horizontal axle in the casing. On the upper horizontal axle in the casing there is a bevel wheel that meshes with the other bevel wheel of a vertical axle that is slotted into the casing, which with its grooves meshes with the hub grooves of another vertical axle slotted into a smaller slot link. This vertical axle also has grooves on the outer surface meshing with the hub grooves of the third vertical axle slotted in the outer slot link. The referred vertical axles perform circular motion and operate as telescope tubes fitted one into the other having the same number of revolutions. In the vertical axle that is connected to the smaller slot link there is a horizontal opening in which one row of propellers is slotted, while the other row of propellers is slotted into the horizontal opening of the vertical axle of the larger slot link. Into the horizontal opening on the side of the larger slot links sits a chain link pin of one chain transmission, while the chain link pin of another chain transmission sits into the horizontal opening of the smaller slot link.

Via reduction gear the driving system revolves the driving axle with the bevel wheel which meshes with the bevel wheel of the lower horizontal axle of the casing which it revolves and via two chain transmissions revolves the other horizontal axle of the casing, and this one revolves the vertical axle via the bevel wheel transmission. The vertical axle revolves the vertical axle with propellers with which it meshes, and this one the other vertical axle with propellers with which it meshes. The propellers of the upper and lower row of vertical axles revolve together with them. Simultaneously, through chain transmissions motion, the chain link pins are the slot link with the lower row of propellers upward, and lowering the slot link with the upper row of propellers that pass one another and reach their final points. After an equal departure of one row of propellers from the other, they draw near each other and this is continuously repeated. The angle of inclination of the propellers in the lower position increases, while simultaneously the angle of inclination of the propellers in the upper position, decreases whereby the thrust function is achieved, i. e. reduced power consumption due to the gravitational force. That would be the main advantage of the invention. The advantage of the invention is the simplicity of design.

Brief description of the drawing The Invention is shown on the example of the manner operation as shown in the attached drawing where: -figure 1 shows the drawing of the Invention - figure 2 shows the cutaway view A-A of the Invention - figure 3 shows the view"E" - figure 4 shows the cutaway view B-B figure 5 shows the cutaway view C-C figure 6 shows the cutaway view D-D Detailed Disclosure of the Invention The device for helicopter drive transmission power from the driving system with two vertical rows of propellers or rotors that continuously draw near or away from each other is characterised by the main board 1 with the casing 1.1 in which 3 the axle is slotted with a 3.1 gear. The main board 1 with bolts 2 is fastened onto the reduction gear of the drive motor. The casing 4 is fastened to the main board 1 with the bolts 5. In the bearings 4.1 and 4.2 of the casing 4 the 7 axle is slotted with the chain wheel 7.2 and the gear wheel 6 that meshes with the gear wheel 3.1. on the axle 7 there is a chain wheel fastened with a nut 9. The chain wheel 8 with the chain 10 on which there is a chain lilk pin 10.1 meshes with the gear wheel 20 positioned on the axle 12, and is fastened with the nut 13. On the axle 12 there is the gear wheel 12.1 with the chain link pin 11.1 that meshes with the chain wheel 7.1. The axle 12 sits into the bearings 4.3 and 4.4 of the casing 4. On the axle 12 there is the gear wheel 14 that meshes with the gear wheel 15.3 of the axle 15 which has grooves 15.1.

The axle 15 sits into an axial bearing 4.5 of the casing 4, and is secured against slipping out from the opening 4.5 with the dividing holder 17 fastened with bolts 18 to the casing 4. The axle 15 with its grooves 15.1 sits into the hub grooves 23.1 of the axle 23 which sits into the opening 19.3 of the slot link 19 and into the axial bearings 30 and 31 in the holder 21 fastened with bolts 22 to the slot link 19. The slot link 19. The slot link 19 has an opening 19.1 on one side into which the chain link pin 11.1 of the chain wheel 11 sits, while on the other side it has an opening 19.2 through which the chain link pin passes 10.1 which sits in the slot 24.1 of the slot link 24. The grooves 15.1 of the axle 15 mesh with the hub grooves 23.1 of the axle 23 which on the external surface has the grooves 23.2 which mesh with the hub grooves 29.1 of the axle 29. In the upper part axle 23 has a transverse opening 23.3 into which the lower row of propellers sits 33. The axle 29 sits into the two axial bearings 27 and 28 positioned in the holder 25 fastened with bolts 26 to the slot link 24 and to the bearing 24.2 of the slot link 24. The axle 29 in the upper part has a longitudinal opening 29.3 into which the upper row of propellers sits 32. On each side of the axle 29 there is the longitudinal opening 29.2. The lower row of propellers 33 passes through opening 29.2 of the axle 29 and sits into the opening 23.3 within the axle 23, while the upper row of propellers 32 sits into the opening 29.3 of the axle 29. The axles 15. 23 and 29 perform circular motion and operate as telescope tubes placed one into the other so that they revolve with the same number of revolutions and have the possibility of axial shift.

The device operates in the following manner: The initial driving system via reduction gear and clutch turns the axle 3 with the gear wheel 3.1 which turns the axle 7 via the gear wheel 6. The axle 7 simultaneously revolves the gear wheels 7.1 and 8, and these via chains 11 and 10 the chain wheels 12.1 and 20 i. e. the axle 12 that via gear wheels 14 and 15.2 starts to revolve the axle 15, and the axle 15 with the grooves 15.1 which mesh with the hub grooves 23. 2 of the axle 23 with the propellers 33. Simultaneously the axle 23 with the grooves 23.1 which mesh with the hub grooves 29.1 of the axle 29 turns the axle 29 with the propellers 32. The chain wheel 7.1 pulls the chain 11 with the chain link pin 11.1 upwards lifting the slot link 19, and this one lifting the axle 23 which in the axial shift goes deeper into the axle 29 moving the upper row of propellers 33 along the opening 29.2 toward the upper row of propellers 32 and passing over them, and both revolve with the same number of revolutions. At the same time the chain 10 with the chain link pin 10.1 turns the slot link 24 downward, and the slot link turns the axle 29 making the upper row of propellers 32 move downward and pass below them until the final lower point. What occurs thereafter is an equal departure of the propellers 32 from the propellers 33, and their drawing to each other which is continuously repeated. The thrust function is achieved through an increase in the angle of inclination of the propellers which have reached the lower position while at the same time there comes to a decrease in the angle of inclination with the propellers that have reached the upper position so that without the air resistance they can slide into the lower point where again they would assume the role of the cargo carrier. The Invention makes it possible for an engine of smaller power to start the activity of the device's operation and that of the turning of the driving propellers. Instantly, at the very first appearance of the thrust, the gravitational force steps in to help the turn of the propellers to gain the increased angle of inclination and to take over the thrust, which is continuously repeated.

Application of the Invention The Invention can be applied to all new design of all helicopter types.