Arrangement for a surface area adjustment of a reciprocating wing system in a wave energy recovery system

A marine energy recovery system comprising:

• a body;
• and
• a set of wings each fastened to support bars, which have respective ends that are hinged onto the body so as to form a rotation axis, in such manner as to make a reciprocating motion in response to kinetic energy of waves of seawater or tidal currents, the marine energy recovery system being configured to convert the reciprocating motion into electric energy,
• wherein each wing is in front of or behind another wing in the set of wings,
• wherein each of the support bars has an unhinged end,
• wherein first support bars, which are attached to one of the set of wings, have unhinged ends that are controllable to extend and retract in a direction, and wherein second support bars, which are attached to an adjacent wing, have unhinged ends that are simultaneously controllable to extend and retract in a different, non-parallel direction relative to the first support bars, in order to adjust the total effective surface area of the wings, the extension and retraction of the unhinged ends of the first and second support bars being implemented using at least one of:
• a hydraulic cylinder, a rack and pinion system, and a linear actuator.