Browsing 2009 by Author "DULGHERU, Valeriu"

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  • Floatable micro-hydropower station with adjustable hydrodynamic blades 
    BOSTAN, Ion; DULGHERU, Valeriu; BOSTAN, Viorel; SOCHIREANU, Anatol; CIOBANU, Oleg; CIOBANU, Radu; TRIFAN, Nicolae (Romanian Inventors Forum, 2009)
    Micro-hydropower station provides kinetic energy conversion of river water into mechanical or electrical energy without building barrages. Increased efficiency is provided by blades aerodynamic profile and their optimum ...
  • Nontraditional technology of toothed wheels fabrication 
    BOSTAN, Ion; DULGHERU, Valeriu; DICUSARA, Ion; BODNARIUC, Ion (Romanian Inventors Forum, 2009)
    The inventions refers to the domain of precessional transmissions and technology of its fabrication. To fabricate toothed wheels with convex-concave profile a practically new theory was elaborated using a tool which performs ...
  • Small Power Wind Turbine with Horizontal Axle 
    BOSTAN, Ion; DULGHERU, Valeriu; SOBOR, Ion; SOCHIREANU, Anatol (Romanian Inventors Forum, 2009)
    Aeolian turbine includes three blades rotor with aerodynamic asymmetric profile. The wind orientation of the turbine is do by servomotor. The power of 10 kW is produced at wind speed of 11 m/s.
  • Small Power Wind Turbine with Vertical Axle 
    BOSTAN, Ion; VISA, Ion; DULGHERU, Valeriu; CIUPERCA, Radu (Romanian Inventors Forum, 2009)
    To increase the conversion efficiency of wind energy at speeds a new wind working element has been designed, based on combined effect of the Darrieus and Helical rotors. It has the shape of Darreus turbine with aerodynamic ...

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