WO2014065687A2

WO2014065687A2 - Aeolian turbine with horizontal axis

Info

Publication number: WO2014065687A2
Application number: PCT/RO2013/000010
Authority: WO
Inventors: Ioan PUIE
Original assignee: Puie Ioan
Priority date: 2012-05-10
Filing date: 2013-04-23
Publication date: 2014-05-01
Also published as: RO127840A0; WO2014065687A3

Abstract

The invention refers to an aeolian turbine with horizontal axis, used to convert the wind's aeolian energy into mechanical energy, which is then transmitted, through an axle, to the shaft of an electric generator. The turbine, according to the invention, is made up of a support frame for the palettes, support that includes a central axle (3) onto which two pairs of discs are mounted (4, 5; 6,7); two parallel rings (1, 2) with an axis that corresponds to the axis (a1, a2) of the central axle (3); spokes (8) secured onto these rings, connecting the rings (1, 2) to corresponding pairs of discs (4, 5; 6, 7); trapezoidal palettes (10) with twisted bases that are secured with the small base to the central axle (3) through small plates (9), and with the large base twisted at an angle (A) to the interior side of the rings (1, 2); the rotation movement of the turbine rotor (R) composed of the central axle (3), palettes (10), and their support, under the action of the wind, is ensured by a horizontal bearing (LO), through the axle (11) to the electric generator (G); while the rotation movement of the rotor (R) that is made of the central axle (3), palettes (10) and their support, under the action of wind, is ensured by a horizontal bearing (LO) through an axle (11) to an electric generator; and the aligning to the wind direction is ensured by a curved console (12) that connects the horizontal bearing (LO) or the turbine to the axle (13) of the vertical bearing (LV), so that the vertical axis (c1, c2) of this vertical bearing (LV) is situated opposite the axis (b1, b2) that vertically crosses the center of the turbine rotor (R).

Description

Aeolian Turbine with Horizontal Axis

The invention refers to an aeolian turbine with horizontal axis, used to convert the wind's aeolian energy into mechanical energy, which is then transmitted, through an axle, to the shaft of an electric generator.

Aeolian turbines currently known and in use include a shaft and a central hub onto which multiple aerodynamic palettes are mounted, while the wind direction is determined by a girouette, either directly or by employing an electro-mechanical system. This type of turbine has the following disadvantages:

- the turbine diameter is relatively big in proportion to the power;

- aligning the turbine onto the wind direction poses difficulties due to turbulences;

- in consequence, such turbines must be installed at high altitudes, in order to avoid disrupting turbulences.

The scope of the invention is to reduce the required turbine diameter for a given level of power, to ensure a better alignment with the wind direction, and to be suitable for being installed at low altitudes.

The problem resolved by this invention is to successfully build an aeolian turbine with horizontal axis that can convert the wind's aeolian energy into mechanical energy, through the shaft of an electric generator.

According to the invention, the aeolian turbine with horizontal axis eliminates the disadvantages mentioned above, by having: a support frame for the palettes, support that includes a central axle onto which four discs are mounted; two parallel rings sharing an axis that corresponds to the axis of the central axle; spokes secured onto these rings, connecting them and connecting each ring to two of the four discs mounted onto the axle; palettes that are secured to the interior to the central axle, with a base co-linear to the central axle, while to the exterior the palettes are mounted onto parallel rings twisted at a certain angle towards the central axle; the rotation movement of the turbine rotor composed of the central axle, palettes, and their support, under the action of the wind, is ensured by a horizontal bearing, the bearing axle would be coupled to the rotor's axle and would transmit the rotation movement to the electric generator, while the movement of aligning to the wind direction would be ensured by a double curve that connects the horizontal bearing of the turbine to the axle of the vertical bearing through which the turbine is mounted onto a fixed support, so that the vertical axis of this bearing is situated opposite the axis that vertically crosses the center of the turbine rotor to the direction of the wind.

The following is an example of how the aeolian turbine with horizontal axis can be constructed with regard to the assembly drawing with a frontai and side view, and can have the following structure:

The aeolian turbine with horizontal axe is constructed from a rotor R. Rotor R is made of two parallel rings 1 and 2, a horizontal cental axle 3, and two pairs of discs 4, 5 and 6, 7. Rings 1 and 2 are joined to the central axle 3 through the spokes 8, so that the ring 1 is mounted with discs 4 and 5, and ring 2 with discs 6 and 7.

Plates 9 are secured onto the central axle in order to mount the palettes 10. Palettes 10, shaped as a trapeze deformed through twisting, are mounted with their smaller base onto plates 9, parallel to the turbine axis al - a2, and with their larger base onto rings 1 and 2 respectively, twisted at an angle A.

Rotor R of the turbine is mounted, through the central axle 3, onto the axle 11 of the horizontal bearing LO, in order to engage an electric generator G.

The curved console 12 connects the horizontal bearing LO and axle 13 of the vertical bearing LV, so that the vertical axis bl - b2 that crosses the center of the turbine, is situated at a certain distance, behind axis cl - c2 of the vertical bearing LV, in order to ensure the position of the axis al - a2 of the turbine permanently aligned to the direction of the wind.

The vertical bearing LV is positioned in such a manner that it ensures the rotation movement of the turbine and the electric generator G, following the direction of the wind, and their mounting onto a fixed support.

According to the invention, the aeolian turbine with horizontal axis has the following

advantages:

- the turbine diameter is small, reported to its power;

- turbine orientation to the wind direction is stable;

- the turbine can be installed at low heights without being affected by turbulences.

Claims

1. The aeoiian turbine with horizontal axis, equipped with radial palettes and a system of aligning to the wind direction, is characterized by that of having a support frame for the palettes, support that includes a central axle (3) onto which two pairs of discs are mounted (4, 5; 6,7); two parallel rings (1, 2) with an axis that corresponds to the axis (al, a2) of the central axle (3); spokes (8) secured onto these rings, connecting the rings (1, 2) to corresponding pairs of discs (4, 5; 6, 7); trapezoidal palettes (10) with twisted bases that are secured with the small base to the central axle (3) through small plates (9), and with the large base twisted at an angle (A) to the interior side of the rings (1, 2); the rotation movement of the turbine rotor (R) composed of the central axle (3), palettes (10), and their support, under the action of the wind, is ensured by a horizontal bearing (LO), through the axle (11) to the electric generator (G).

2. The aeoiian turbine with horizontal axis, according to Claim 1, is characterized by the fact that the movement of aligning to the wind direction is ensured by a curved console (12) that connects the horizontal bearing (LO) or the turbine to the axle (13) of the vertical bearing (LV), so that the vertical axis (cl, c2) of this vertical bearing (LV) is situated opposite the axis (bl, b2) that vertically crosses the center of the turbine rotor (R).