Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2019027327) WAVE-POWER PLANT WITH CONTROLLABLY BUOYANT FLOATS
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

Claims

1. Wave power plant (100) for the production of electric energy, comprising a generator housing (211) having a generator (233) for the production of electric energy, an elongate shaft (102) connected to the generator (233), wherein one or more rotor blades (101) are mounted unidirectional rotary on the shaft (102), wherein the shaft (102) further comprises buoyancy means (106), and an anchoring to seabed or river bed, characterized in that the elongate shaft (102) is hollow and accommodates at least one conduit (116) for transport of pressurized gas, and at least one signal cable (119), wherein the wave power plant (100) exhibits at least two buoyancy means (106) comprising a housing (111), having a hollow interior and an aperture (124) for exchange of water between surrounding mass of water and the cavity in the housing (111), arranged fixedly connected to and encompassing the shaft (102), wherein an inflatable and deflatable bladder (113) is arranged around the shaft (102) and is connected in a water tight manner to the interior of the housing (111), thus defining a gas-filled interior (115) of the bladder (113) and a water-filled compartment (114) inside the housing (111) outside the bladder (113), wherein a valve (117) controllable via a signal cable (119) is arranged inside the hollow shaft (102), arranged to exchange gas between the gas-filled interior (115) and the generator housing (211) via conduit (116), and in that the wave power plant (100) exhibits means for pressurizing or pressure balancing the bladder (113) in a mutual independent manner inside respective buoyancy means (106).

2. The wave power plant of claim 1, wherein the shaft (102) and/or the buoyancy means (106) are provided with sensors selected from the group consisting of of pressure, echo recorder, angle position in the horizontal plane, strain, and power production.

3. The wave power plant of claim 1 or 2, wherein the means for pressurizing or pressure balancing the bladder (113) comprises at least one compressor (235) and a pressure tank (236) for gas in flow communication with conduit (116).

4. The wave power plant of claim 3, wherein the wave power plant (100) exhibits a controller (237) inn signal communication with valve (117), compressor (235) and said sensors.

5. The wave power plant of claim 3, wherein the compressor (235), the pressure tank (236) and the controller (237) are accommodated inside the generator housing (211).

6. The wave power plant of any one of the preceding claims, wherein a floatable buoy (300) is connected with the generator housing (211) via cable (239).

7. The wave power plant of any one of the claims 4 to 6, wherein the buoy (300) exhibits sensors for recording physical parameters at the water surface, and sending the parameters to controller (237).

8. The wave power plant of any one of the claims 4 to 7, wherein the buoy (300) exhibits means for sending light and/or sound signals at the surface.

9. The wave power plant of any one of the preceding claims, wherein the rotor blade (101) is supported eccentric to the shaft (102) via a rotor blade attachment (125) and a pivot bearing (126), wherein the pivot bearing exhibits stop means, so that the rotor blade (101) can pivot about an axis extending radially to the longitudinal axis of the shaft (102), between a first position where the rotor blade (101) surface extends substantially vertically and perpendicularly to the water surface, and a second position where the rotor blade (101) surface extends substantially horizontally and level with the water surface.

10. The wave power plant of any one of the claims 1 to 8, wherein a number of rotor blades (101) are arranged bendable in the periphery of the shaft (102).

11. The wave power plant of claim 10, wherein the rotor blades (101) are formed of an elastic material.

12. The wave power plant of claim 10, wherein the rotor blades (101) are formed of a stiff material and rotary in the periphery of the shaft (102) about a pivot bearing (126').