RU2505457C2 - Air propulsor - Google Patents

Abstract

FIELD: aircraft engineering.

SUBSTANCE: air propulsor comprises main and extra upper rotors as well as main and extra lower rotors with blades secured to solid and hollow shafts. Blades of the main and extra rotors represent twin-type design and are arranged at 10-30 degrees relative to axes of shafts to vary rotor pitch. Ends of twin blades are interconnected by common ring. Propulsor drive is fitted on hollow shaft to displace thereat.

EFFECT: higher lift, ruled out fold over of blades.

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Description

The invention relates to aircraft and can be used to create rotors for a helicopter, as well as an engine for wind generators and a water engine.

Known air propulsion to create a return flow (see the description of the invention to the patent of the Russian Federation No. 2145295, publ. 02/10/2000).

The specified mover contains four internal combustion engines (ICE), attached using fasteners to the body. The mover also contains curved blades, a ring, a crank mechanism and drive rollers.

The air propulsion device operates as follows. Four ICEs mounted symmetrically around the circumference rotate the drive rollers using a crank mechanism.

The described air propulsion is very energy intensive, because contains four internal combustion engines, the operation of which requires high fuel costs.

The closest known to the applicant is the design of an air propulsion device used in a twin-rotor helicopter (see Kuznetsov G.I. Design Bureau N.I. Kamova. Publishing House "Center for Aviation and Cosmonautics", M., 1999, v. 1, p. 34).

The known propulsion device comprises a drive mechanism, upper and lower rotors, the blades of which are attached using fasteners (bushings and horizontal, vertical, axial joints), respectively, to the shafts of the upper and lower rotors.

The design of this air propulsion is selected as a prototype.

The prototype and the claimed air propulsion have common nodes and elements:

- drive mechanism;

- upper rotor;

- lower rotor;

- the shaft of the upper and lower rotors.

However, the known design has the following disadvantages:

- the possibility of overlapping the blades during sharp maneuvers, when changing course, climbing or landing;

- large flow dispersion during takeoff and landing, which reduces lift.

The basis of the invention is the task to create an improved design of an air propulsion device, in which by introducing additional rotors, arranging the blades of the main and additional screws at a certain angle and making them paired, as well as installing the drive mechanism on the shaft with the ability to move, to ensure increased design efficiency due to increase in lifting force and elimination of overlap of the blades.

The problem is solved by the design of the air propulsion device, including the drive mechanism, as well as the upper and lower rotors with blades attached to the shaft using fasteners, in that it contains additional upper and lower rotors, the blades of which are attached to the hollow shaft using additional fastening elements, while the blades of the main and additional rotors are paired and installed at an angle of 10-30 ° relative to the axis of the shafts with the possibility of changing the pitch of the screw, the ends are paired the blades are interconnected by a common ring, and the drive mechanism is mounted on the hollow shaft with the possibility of movement.

New in the claimed invention is a combination of the following features:

- a drive mechanism mounted on a hollow shaft with the ability to move;

- additional upper rotor;

- additional lower rotor;

- additional fastening elements;

- the blades of the main and additional rotors are made paired;

- the blades of the main and additional rotors are installed at an angle of 10-30 ° relative to the axis of the shafts;

- the blades of the main and additional rotors are installed with the ability to change the pitch of the screw;

- the blades of the main and additional rotors are interconnected by a common ring;

- the blades of the main and additional rotors are attached to the hollow shaft;

- the blades of the main and additional rotors can be offset relative to each other, while the main and rotors can have a different number of blades.

The installation of two additional screws allows you to create the effect of a turbocharger, creating a larger vacuum above the blades and increasing lift.

The blades of screws are fastened in pairs with the upper and lower parts of the rings, preventing them from twisting and creating a sufficiently rigid connection of the screws, which allows you to increase the maneuverability of the machine without worrying about overlapping the blades, as in a twin-screw helicopter.

To ensure control of the device, a drive mechanism with a control unit is installed in the center of the hollow shaft, which moves the center of gravity in the direction of maneuver, which allows, without reducing the speed and speed of the screws, to fly in the necessary direction.

The blades of the screws are installed at an angle of 10-30 ° relative to the axis of the shafts. By changing the angle of attack of the upper and lower screws, you can prevent unwinding, as well as keep the device at a certain height.

The air propeller is shown in the drawing.

The air propulsion device includes a shaft 1, on which, using fasteners 2, the blades 3 of the main upper rotor are fixed (not shown separately), and using fasteners 5, the blades 6 of the main lower rotor (are not shown as a separate position).

On the hollow shaft 4, with the help of additional fastening elements 7, the blades 8 of the additional upper rotor are fixed (a separate position is not shown), and with the help of additional fastening elements 9 the blades 10 of the additional lower rotor are fixed (a separate position is not shown).

The ends of the blades 3 of the main upper rotor and the blades 6 of the main lower rotor are interconnected by a common ring 11 with the rotary rollers 12. The ends of the blades 8 of the additional upper rotor and the blades 10 of the additional lower rotor are interconnected by a common ring 13 with the rotary rollers 14.

In the central part of the hollow shaft 4, a drive mechanism 15 with a control unit (a separate position not shown) is installed. The drive mechanism 15 is mounted on the hollow shaft 4 with the possibility of movement.

The blades 3, 6 of the main and 8, 10 additional rotors are installed at an angle of 10-30 ° relative to the axis of the shafts 1, 4 with the possibility of changing the pitch of each screw.

Works air propulsion as follows.

The drive mechanism 15, located in the center of the hollow shaft 4, with the help of a reduction gear rotates the shaft 1 and the hollow shaft 4 in opposite directions, thus spinning the blades 3, 6 and 8, 10. For example, the twin blades 3, 6 rotate clockwise arrow, and twin blades 8, 10 - counterclockwise. The rigid rings 11 and 13 inhibit the stall of the air flow from each rotor and do not allow the air flow to dissipate, thereby increasing the lifting force.

The invention can be made at any aircraft factory or enterprise specializing in the production of helicopters, or at the enterprise producing wind generators or water engines.

Claims (1)

An air propulsion device including a drive mechanism, as well as upper and lower rotors with blades attached to the shaft using fasteners, characterized in that it contains additional upper and lower rotors, the blades of which are attached to the hollow shaft with additional fasteners, while the blades of the main and additional rotors are paired and installed at an angle of 10-30 ° relative to the axis of the shafts with the possibility of changing the pitch of the screw, the ends of the paired blades are interconnected th common ring, and the drive mechanism is mounted on the hollow shaft with the possibility of movement.