Helical wind turbine (variants)

• Main Authors: DULGHERU VALERIU, CIOBANU OLEG, CIUPERCA RODION, BOSTAN ION
• Format: Patent
• Language: English; Romanian
• Published: 28.02.2006
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

Inventia se refera la energetica eoliana, si anume la motoare eoliene elicoidale. Turbina eoliana elicoidala in prima varianta contine un arbore cilindric, pe care sunt fixate palete elicoidale cu suprafata aerodinamica. Turbina este executata ingustata la un capat si poate fi de forma conica sau paraboloidala. In varianta a doua turbina eoliana elicoidala (2) si arborele (1) sunt executate ingustate la un capat, directia ingustarii lor fiind aceeasi, si pot fi de forma conica sau paraboloidala. Partile frontala si din spate ale fiecarei palete pot fi tesite sub un unghi de 40...60° fata de axa turbinei sau executate in forma de arc. Rezultatul consta in majorarea coeficientului de utilizare a energiei eoliene si functionarea mai eficienta la viteze mici ale vantului. The inventions relates to the wind-power engineering, namely to the helical windmills.The helical wind turbine, according to the first variant, contains a cylindrical shaft, onto which there are fixed helical blades with airfoil surface. The turbine is made narrowed to one end and may be of conic or paraboidal shape.The helical wind turbine (2) and the shaft (1), according to the second variant, are made narrowed to one end, the direction of their narrowing being equal, and may be of conic or paraboidal shape.The frontal and back parts of each blade may be cut at an angle of 40...60° about the turbine axis or made arch-shaped.The result consists in increasing the wind power utilization factor and a more effective functioning at small speeds of the wind.