A portable wave-swash and coastal-wind energy harvester for capturing mechanical energy contained in wave-swash and coastal-wind to produce electrical energy in an alternator, and for providing protection against coastal erosion in an energy farm, comprising:
- a frame;
- at least one wave turbine rotatably mounted on said frame, said wave turbine producing rotation caused by the force of wave-swash that impinges on said wave turbine, said wave turbine having a front half and a rear half;
- at least one wave funnel, having openings to receive and guide said wave-swash toward said wave turbines thereby enabling said wave-swash to converge and to accelerate while entering said wave turbines, said wave funnel detachably united to said wave turbines;
- at least one wind turbine rotatably mounted on said frame, said wind turbine producing rotation caused by the force of wind that blows on said wind turbine;
- at least one wave float loosely hooked to said frame for generating energy by producing a reciprocating motion by floating up and down on the surface of water in wave-swash zone whose level rises and falls with the uprush and backwash of said wave-swash;
- a float restraint rigidly secured to said frame, for confining the movement of said wave float whereby said wave float moves only in a vertical direction through a predetermined distance;
- rack and pinion gears movably attached to one of said axles for converting linear motion of said wave float into rotational motion of said axles;
- at least one partial-cylindrical shaped wave-turbine cover rigidly attached to said frame for providing an envelope around said rear half of said wave turbine to create a space between said wave-turbine cover and said wave turbine to guide water exiting from said wave turbine around said wave turbine through said space between said wave-turbine cover and the outer periphery of said wave turbine thereby enabling said wave turbine to extract optimal amount of kinetic energy, and for providing a barrier between said wave turbines and said wave float;
- a rotational transmission system that comprises plurality of axles, bevel gears, one-way clutches, and flywheels for conveying torque generated by the action of said wave turbines, said wind turbines, and said wave floats to said alternator;
- bevel gears rotatably coupled to one of said axles for changing direction of the axes of rotation from that of said wave turbine to that of one of said axles;
- bevel gears rotatably coupled to one of said axles for changing direction of the axes of rotation from that of said wind turbine to that of one of said axles;
- one-way clutches rotatably coupled to said axles, for transmitting torque in said axles to said alternator in one direction only while suspending torque in the other direction;
- plurality of flywheels rigidly attached to said axles for retaining angular momentum of said axles and thereby maintaining substantially steady rotation of said axles;
- a buoyancy chamber at the bottom of said frame for reducing the weight by pumping water out of said buoyancy chamber and thereby enhancing maneuverability on land and in water of said portable wave-swash and coastal-wind energy harvester;
- a stabilization tank detachably mounted on said frame above said wave turbines for increasing the weight by pumping water into said stabilization tank and thereby enhancing stability, and resistance to overturning and sliding, of said portable wave-swash and coastal-wind energy harvester;
- and
- wheels rotatably connected to said frame for enabling said portable wave-swash and coastal-wind energy harvester to roll along a surface.