LT7154B - WIND TURBINE WITH VERTICAL AXIS OF ROTATION - Google Patents

Abstract

The invention relates to wind turbines with a vertical axis of rotation. The turbine is designed to convert the energy of a gas or liquid flow into a torque, which can be used to create mechanical or electrical energy. The purpose of the invention is to simplify, facilitate the design, increase versatility, adapt it to individual domestic use, expand the choice of a working location (variants are possible when the turbine operates suspended or erected), increase the torque at a selected design size. This problem is solved by a wind turbine with a vertical axis of rotation consisting of a rotor consisting of blades (1) mounted on a freely rotating shaft (2) connected to a generator (3), a casing (4) with a tail (5). Inside the shaft (2) there is a freely rotating shaft (6) on which the casing (4) is mounted, covering one side of the turbine, and the shaft (6) itself is connected to a slewing bearing (7) suspended on a fixed support. The housing (4) has surfaces (8) that additionally direct the flow to the rotor blades (1). In addition, the rotation bearing (7) is mounted on a fixed support and the shaft (6) is inserted into it.

Description

TECHNICAL FIELD

A wind turbine with a vertical axis of rotation is designed to convert the energy of a gas or liquid flow into rotational torque, which is used to create mechanical or electrical energy.

STATE OF THE ART

The Bolotov wind turbine RU2352809C1 is known to be complex. Its use is limited by the fact that the design is completed together with an electric generator. Complex flow direction channels are arranged on several floors. The aerodynamic blades receive a flow opposite to the direction of rotation.

Also known wind turbine US10253755B2 complex. Limited use for individual, domestic purposes. Requires a solid horizontal area for installation. The blades are subjected to a flow opposite to the direction of rotation.

The most recent patentable turbine with a vertical axis of rotation WO2006/096091A1 consists of a lower base, an upper housing element, spatial blades, flow directing channels, an exhaust channel in the housing, a working rotor, protruding flow traps, internal spaces for directing the flow, tails and a generator. This turbine has disadvantages. It is complicated due to the flow directing channels, spaces inside the housing. The flow traps are on both sides, i.e. they catch the flow, the direction of which is opposite to the direction of rotation of the rotor. The diameter of the rotor is significantly smaller than the dimensions of the device, i.e. it reduces the torque.

ESSENCE OF THE INVENTION

The purpose of the invention is to simplify and facilitate the construction, increase versatility, adapt it to individual domestic use, expand the choice of workplace, and increase the torque at the selected construction dimensions.

This problem is solved by a wind turbine with a vertical axis of rotation consisting of a rotor, the blades of which are mounted on a freely rotating shaft connected to a generator, a shroud with a tail, which differs in that the shroud with a tail surrounds half of the rotor and is attached to a shaft, the upper part of which above the rotor is connected to a rotational bearing suspended on a fixed support, and the lower part is passed through the hollow rotor shaft.

The hood has surfaces that additionally direct the flow to the rotor blades.

The slewing bearing is mounted on a fixed support and a shaft is inserted into it.

The turbine is light, simple, and can be used for individual household use. Its versatility lies in the fact that it can be placed on a stand or hung so that it does not take up space.

The blades (like sails) take up almost the entire volume of the turbine, creating maximum torque.

DESCRIPTION OF DRAWINGS

The invention is further described with reference to the following drawings.

Fig. 1 - General view of a wind turbine with a vertical axis of rotation.

Fig. 2 - cross-section of a wind turbine.

Fig. 3 - General view of a wind turbine whose casing has surfaces that additionally direct the flow to the rotor blades, installed in a slewing bearing.

A vertical axis wind turbine (Fig. 1) consists of rotor blades (1) mounted on a freely rotating shaft (2) connected to a generator (3). One half of the turbine is covered by a hood (4) with a tail (5), which are attached to another shaft (6) that can rotate freely inside the shaft (2). The shaft (6) is suspended from a fixed support via a slewing bearing (7).

Fig. 2 - A cross-section of a wind turbine showing how the shroud (4) directs the flow, the direction of which is opposite to the selected direction of rotation, away.

Fig. 3 - a variant of a wind turbine, where the casing (4) has a surface (8) additionally directing the flow to the blades (1), and the shaft (6) is placed in a rotational bearing (7) mounted on a fixed support.

DESCRIPTION OF THE INVENTION

If we look at the plane drawn through the vertical axis of rotation of the rotor and perpendicular to the flow in Fig.1, we would see that on one side of the plane the flow direction coincides with the direction of rotation, creating a torque, and on the other side it is opposite and stops the rotation. To avoid the flow stopping the rotation, we cover half of the turbine with a hood with a tail which, like a weather vane, will always be turned perpendicular to the flow of the changing direction, and the part of the flow, the direction of which is opposite to the chosen direction of rotation of the turbine, is directed away.

The axes of rotation of both the housing and rotor shafts coincide with the vertical geometric axis.

When the gas or liquid flow presses on the rotor blades (1) not covered by the cover, mounted on a freely rotating shaft (2), it rotates. Since the shaft (2) is connected to the generator (3), it also rotates the generator rotor, producing electricity. In real conditions, the gas or liquid flow has a changing direction. To ensure that the imaginary plane drawn through the vertical axis of rotation of the rotor is perpendicular to the flow, the cover (4) is connected to the tail (5), and these are connected to the shaft (6) and can rotate freely like a weather vane. Fig. 1 shows a variant of the turbine with a vertical axis of rotation, when the turbine is suspended on a fixed support through a rotation bearing (7) and can freely rotate and rotate in accordance with the direction of the flow.

Fig. 3 shows a variant of the turbine execution, when the turbine is placed on a fixed support through a rotary bearing (7).

Claims (3)

DEFINITION OF THE INVENTION 1. A wind turbine with a vertical axis of rotation consisting of a rotor consisting of blades mounted on a freely rotating shaft connected to a generator, a shroud with a tail, characterized in that the shroud with a tail surrounds half of the rotor and is attached to a shaft, the upper part of which is connected above the rotor to a rotational bearing suspended on a fixed support, and the lower part is passed through a hollow rotor shaft. 2. The wind turbine according to claim 1, characterized in that the shroud has surfaces that additionally direct the flow to the rotor blades. 3. The wind turbine according to claim 1, characterized in that: