LV14060B - Wind-powered engine - Google Patents

Abstract

The invention refers to wind-power engineering and may be used for the generation of electrical energy or in mechanical works. The wind-powered engine consists of a vertical shaft installed in the bearing assembly and connected with the transmission of mechanical energy consumers. The radial blade of the wind-powered engine consists of two symmetrical, oppositely oriented channelled consoles. The consoles are joined to a connecting pipe which is placed on the vertical shaft. The pipe ensures the flow of air from the active console cavity to the passive console cavity. The consoles have a sweep and a narrowing. It is suggested to considerably decrease the axial dimensions of the blades, at the same time increasing their radial dimensions, at the expense of the increase of wind-powered engine operating efficiency. It will make it possible to substantially decrease the weight of the whole structure. The suggested wind-powered engine, which differs by simplicity and reliability of structure, may be widely used to provide power supply to different facilities (houses, industrial structures, vehicles, etc.). An exemplary embodiment of the invention is represented in fig.1.

Description

Description of the Invention

The invention relates to wind energy and can be used for the production of electricity or for mechanical work.

Carousel wind engines with one or more levels of radial wings in the form of a sail, plate or gutter, which sense wind pressure, are known [13]. The disadvantage of such wind turbines is the low wind power utilization rate.

Modern wind turbines with Savonius system rotors consist of two vertical half-cylindrical or helical wings [4]. The wind flow acts on the concave inner surfaces, creating an overpressure that exceeds the pressure on the outer curved wing surfaces. The differential pressure on the wings creates a positive torque for the wind engine rotor. The wind energy utilization rate of the Savonius system wind turbines is significantly higher than that of, for example, carousel engines. The disadvantage of such cylindrical or spiral wind turbines is the small resultant force that rotates the rotor and its application lever, which leads to the necessity of increasing the wingshaft dimensions (height).

Purpose and substance of the invention

The object of the invention is to improve the performance of the rotors of the Savonius system by reducing the size of the wingshaft while increasing their radial size. In addition, the wind power utilization rate increases. The goal is achieved by making the wind turbine with the vertical shaft housed in the bearing and the radial wings different in that the wing consists of two symmetrically opposed gutter cantilevers, which are connected to the intermediate pipe which is located on a vertical shaft.

Example of implementation of the invention

An example embodiment of the invention is shown in FIG. The proposed wind engine consists of a vertical shaft 1 mounted on a bearing 5 and coupled to a mechanical power consumer transmission. The shaft is provided with an intermediate tube 2 having a circular, elliptical or composite cross-section. At the ends of the tube there are fixedly two gutter-shaped wing brackets 3 and 4, which are cut opposite to each other and whose cross-sectional profile is identical to that of the central tube. The duct provides air flow from the wing active console space 4 to the passive console space 3. The consoles are arrow shaped and taper. The consoles can be positioned on two or more levels to increase the efficiency of the wind engine.

The incoming wind airflow enters the wing active console 4 (inside the gutter cavity), creating an area of high pressure there and performing useful work for the wind engine. Further, the air flow through the conduit 2 flows into the cavity 3 of the opposite wing passive console. When air is flowing into the passive cavity cavity, overpressure is created which contributes to the reduction of aerodynamic drag as the wing moves toward the wind.

Thus, the useful work is done simultaneously by both wing brackets, increasing the efficiency of the wind engine, which results in a significant reduction in the wing axle size while increasing their radial dimensions. This allows a significant reduction in the weight of the entire structure, while increasing the wind power utilization rate.

The proposed wind turbine is simple in design and reliable, and can be found in a wide range of applications in the power supply of various objects (houses, industrial buildings, vehicles, etc.).

Information used:

1. Markov A.M. Ветроэнергетическая установка - Patents RU 2248464, publ. March 20, 2005

2. Ishimurov B.B., Ishmurov B.B. Касусельный ветродвигатель Ишмуратовых Patents RU 2281410, publ. 8/10/2006

3. Shirley L. Potter. Wind Powered Electricity Generation System - Patents US 4382191, publ. 3.05.1983.

4. Turin K.H. Роторный ветродвигатель - Patent RU 2210000, publ. 8/10/2003

Claims (1)

Claim A wind turbine with a vertical shaft mounted on a support bearing and coupled to a mechanical energy-consuming transmission, and having radial wings, characterized in that the wing consists of two symmetrical, mutually oriented, gutter-type cantilevers , said brackets being connected to an intermediate pipe located on a vertical shaft.