The invention is related to wind electric power generation with horizontal axis rotary blades at 90° from the direction of wind movement on raised towers with high speed winds.
The state of the aerodynamic blades with dihedral angle technique up to now have only one worldwide precedent because this invention was not known before, which is a patent request presented by myself before INDECOPI in Peru on Jul. 16, 2013 currently in the international search phase by the PCT system that on February or March of 2015, the WIPO will be publishing the result passing to the national phase if it is viable to be patented country by country.
Said invention presents a new aerodynamic blade with a longitudinal volumetric rhomboid and smooth side in its four sides, with a dihedral angle lower than 45° in one of its longitudinal sides which captures one fourth of the fluid mass deviated by the frontal collision of the wind with said blade generating an effective rotating movement with only two blades over a horizontal axis at 90° of the lineal movement of the wind.
This state of art in the exclusive field of wind generators with dihedral angle blades is determined by the unique antecedent of the present invention to capture all the kinetic power of the wind, said invention has an very high capacity to produce electric power ever known to mankind, but at the same time it is still perfectible in the design and aerodynamic of said blade with a dihedral angle to reach maximum technical capacity to obtain potential wind power and convert it into a more efficient mechanical energy as well as to improve other elements of said invention as presented in this patent application.
The invention in addition to the foregoing consists of a modification of one of the four sides of the rhomboidal side of the blade, specifically the one that sides the dihedral angle which in the original one is plane and smooth, where the wind hits frontally it is divided in two masses, one that is embedded in the interior space of the dihedral angle and another one which is lost or redirection to the leakage space giving a lower thrust on the side with a dihedral angle.
The forming side of the modified dihedral angle, with a longitudinal depression from the center of the blade with an approximate depth of ¼ from the thickness of the lower axis of the blade, with a curved side, where the wind enters and is directly directed towards the interior vertex of the dihedral angle, compressing the one that bounces from the vertex without the possibility of returning as it seems to in the previous dihedral angle of the two sides which were simply planar. The longitudinal depression which produces a greater rotation and collection capacity of the kinetic power of the wind, in the same way as in the scale prototype tests have shown higher rotation speed and greater torque power in the horizontal axis of the system. The modified dihedral angle, with a longitudinal depression from the center of the blade with a depth of approximately ¼ of the thickness of the minor axis of the blade, with a curved shape, where the wind enters and is directed directly towards the Vertex interior of the dihedral angle, compressing the one that bounces from the vertex with no option of receding as it seems to happen in the previous dihedral angle of two simply flat sides. Longitudinal depression that produces greater capacity of rotation and capture of the kinetic power of the wind, as well as in tests with prototype to scale to demonstrated greater speed of rotation and greater torsion force in the horizontal axis of the system.
The new wind generator with PSP dihedral angle blades No. 2, whose only precedent has been mentioned in the state of art contains all the elements and basis of said invention in the patent application, which in the process of research with a prototype test has allowed us to perfect it by adding new properties and forms of design and construction of the blade with dihedral angles for the purpose of comparison attached is
The further aspect of the patent application is shown in
Personal laboratory tests with the installation of two sets of blades, one in the front section of the gondola and another in the rear section showed that: the rear set with blades having a frontal depression rotated faster than the front blades with equal planar sides in the original invention despite apparently receiving a directional impulse from kinetic power of weakened wind.
The ratio or relationship between the uniform geometry of the four-sided blade to the depth of the depression applied to said blade is equal to approximately ¼ of the thickness or dimension of the minor axis of the dihedral angle blade shown in
As a wind generator must ensure its resistance to the destructive action of high-speed winds greater than its maximum wind speed range to work without risk of destruction. In the personal lab tests, it was proven to rotate both blades at 90° from its working position to align its greater side with said wind as shown in
The same is shown in
Finally
Finally,
Number | Date | Country | Kind |
---|---|---|---|
001719-2014/DIN | Oct 2014 | PE | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/PE2015/000019 | 10/20/2015 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2016/068730 | 5/6/2016 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
20110070094 | Haddjeri | Mar 2011 | A1 |
20120189455 | Enevoldsen et al. | Jul 2012 | A1 |
Number | Date | Country |
---|---|---|
2005015009 | Feb 2005 | WO |
Number | Date | Country | |
---|---|---|---|
20180045175 A1 | Feb 2018 | US |