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[Category : - MECHANICAL ENGINEERING]
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(3)I propose to change the design of the helicopter, which will use a wing with modified characteristics, instead of the classic main rotor. The turbine generates low pressure over the upper part of the wing, using a device that changes the direction of the intake air, from vertical to horizontal direction, on the surface of the wing. Therefore, under the lower part of the wing, a high pressure zone will be created, this way the lift force is created, according to the physical law of Bernoulli, to do this, there is a very simple solution. The movement of the helicopter in different directions is carried out by a mechanism similar to that of aircraft, a vertical take-off of the "Harrier" type, by redistributing the exhaust gases of the turbine. I am sure that such a device design will be more reliable and much more effective than in conventional devices and can be used for civil aviation, border protection, urban combat and for the protection of infantry.
See attached files.

(12)I suggest using the Archimedes screw as a pump for pumping liquids under pressure or as a hydraulic pump. The difference from the usual Archimedes screw is that the thread depth on the screw I offer gradually and smoothly decreases, which allows you to gradually increase the pressure in the liquid passing through the thread.
(12) I offer a cone, screw, hydraulic pump, for pumping liquid under pressure or as a hydraulic pump. In the liquid passing through the thread of the conical screw auger, from a larger diameter to a smaller one, the pressure gradually increases, which allows the pump to be used for pumping liquids or for hydraulic systems.

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vladimir52 (Russian Federation)

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