Bidirectional turbine blade
Blade configurations for francis-type turbine runners
Blade for a device for generating energy from a fluid flow
Blade for a rotor of a wind or water turbine
Blade for a water turbine
Blade wheel
Bouyant actuator
Bulb turbine emergency counterweight system
Buoyancy motor
Buoyancy motor
Buoyancy pump power system
Buoyancy-activated motor
Buoyant actuator
Buoyant container with wave generated power production
Buoyant gravity engine
Butt welding laminated plate to solid plate
Calibration of pump efficiency meters
Ceiling fan with variable blade pitch and variable speed...
Centrifugal fluid seal for hydraulic machines
Centrifugal liquid seal for hydraulic machines