section Home
Production, Amateur
Radio amateur
Model aircraft, rocket-
Useful, entertaining 		Stealth master
Electronics
Physics
Technologies
invention 		space Mystery
Earth Mysteries
Secrets of the Ocean
Stealth
section Map
Start
Forum
Use of material is permitted for reference (for websites - hyperlinks)
INVENTION
Russian Federation Patent RU2148185

VETROROTOR for wind turbines

Name of the inventor: Antonov YM
The name of the patentee: All-Russian Research Institute for Electrification of Agriculture
Address for correspondence: 109456, Moscow, 1st Veshnyakovskaya etc., 2, VIESH, ONTI and patenting.
Starting date of the patent: 1998.12.10

The invention relates to wind energy and can be used for stable operation of wind turbines at high wind speeds. The technical result consists in increasing the efficiency of the use of wind flow, improved automatic power control vetrorotora and improving its reliability in operation is achieved in that vetrorotore comprising a shaft and fixed thereon screw vane blade is spiral-helix, a cut from a flat circular blank by cutting it in a curve close to a spiral of Archimedes and stretched along the axis of the hollow shaft and the adjusting shaft, wherein the first spiral spiral spiral blade fixedly mounted on the hollow shaft, the diameter of the helical blade increases towards the wind direction, and subsequent windings are attached to the rods extending through longitudinal grooves, which are formed inside the hollow shaft and fixedly attached to the adjusting shaft coaxially located within the hollow shaft, with the adjusting shaft is movable along the hollow shaft.

DESCRIPTION OF THE INVENTION

The invention relates to vetroenergetike and can be used for stable operation of wind turbines at high wind speeds.

Known designs of screw vetrorotorov with vertical or inclined axis of rotation (see. Russian 2,101,560 C1 patent 1/10/98).

The closest to the technical nature of the present invention is vetrorotor (wind turbine), which contains a shaft and fixed on it the blade screw (see. SU, 1225912 A, 23.04.86). The disadvantage of this is the lack of vetrorotora efficient use of wind energy in its different speeds, power control inconvenience.

The technical result consists in increasing the efficiency of the use of wind flow, improved automatic power control vetrorotora and improving its reliability in operation is achieved in that vetrorotore comprising a shaft and fixed thereon helical blades, the inventive blade is spiral-helix, a cut from a flat round workpiece by cutting it along a curve close to a spiral of Archimedes and stretched along the axis of the hollow shaft and the adjusting shaft, wherein the first spiral spiral spiral blade fixedly mounted on the hollow shaft, the diameter of the helical blade increases towards the wind direction, and subsequent windings are attached to the rods, passing through the longitudinal grooves, which are formed inside the hollow shaft and fixedly attached to the adjusting shaft coaxially located within the hollow shaft, with the adjusting shaft is movable along the hollow shaft.

The essence of the invention is illustrated by FIG. 12.

VETROROTOR for wind turbines

FIG. 1 is a perspective view vetrorotora; FIG. 2 - helical blade, a cut from a flat circular blank in a spiral of Archimedes.

Vetrorotor contains spiral screw blade 1, the hollow shaft 2, the adjusting shaft 3, the blade fixing pins 4, 5 longitudinal grooves of the hollow shaft 2.

The first round of the helical spiral blade 1 is rigidly fixed to the hollow shaft 2. Subsequent helical coils spiral blade 1 are arranged around the hollow shaft 2. The turns of the helical blade 1 at regular intervals are fixed to fixing rods 4 which pass through longitudinal slots 5 formed within the hollow shaft 2 and fixed to the adjusting shaft 3. The adjusting shaft 3 rotates together with the fixed thereon spiral screw blade 1 and a coaxial hollow shaft 2, is movable within the hollow shaft 2 along its axis. When axial movement of the adjusting shaft 3 inside the hollow shaft 2 by the rods 4 traveling in the longitudinal grooves 5 of the hollow shaft 2, spiral screw blade 1 is able to "stretch" or "compress" the windings of the spiral-helical blade 1 along the hollow shaft 2 in order to regulate vetrorotora power depending on wind velocity, ie. k. a change of the distance between the spiral screw blade vetrorotora leads to a change of diameter (D and d).

Spiral spiral blade 1 vetrorotora cut out of a flat circular blank of diameter D by cutting it along the curve close to the spiral of Archimedes, and stretched along the axis of the hollow 2 and 3 of the adjusting shaft.

WORKS VETROROTOR for wind turbines FOLLOWS

Before working vetrorotor set the beginning of the spiral screw (narrow ring) towards the wind flow. The wind stream hitting in turns of the spiral-helical blade 1 rotates together with its attached thereto hollow shaft 2a and located inside the adjusting shaft 3.

When changing the speed of the wind to change the power vetrorotora movement of the adjusting shaft 3 along the hollow shaft 2 by means mounted on rods shaft 4 moving along the longitudinal grooves 5 of the hollow shaft 2, changing the distance between the turns of the spiral-helix of the blade 1, leading to a change vetrorotora diameter and hence its capacity.

CLAIM

Vetrorotor comprising a shaft and fixed thereon helical blades, characterized in that the blade is spiral-helix, a cut from a flat circular blank by cutting it along a curve close to a spiral of Archimedes and stretched along the axis of the hollow shaft and the adjusting shaft, wherein the first coil is spirally -vintovoy blade is rigidly fixed to the hollow shaft, the diameter of the helical blade increases towards the wind direction, and subsequent windings are attached to the bars extending through the longitudinal grooves, which are formed inside the hollow shaft and fixedly attached to the adjusting shaft coaxially located within the hollow shaft, with adjustment shaft movably along the hollow shaft.

print version
Publication date 31.01.2007gg