Device comprising an elongated tubular body arranged to be...
Device for extracting energy from water waves
Device for preventing penetration of corrosive salt...
Device for producing electric current from wind energy
Device for producing mechanical energy by means of a...
Device for the regulation of the pumping capacity of...
Devices for utilizing the power of the wind
Diffuser for augmenting a wind turbine
Double vortex augmentor wind conversion system
Dual axis wind turbine
Dual rotor wind turbine
Ducted wind turbine