Wave-actuated system, wave energy converter subsystem, and method for operating a reverse-osmosis desalination subsystem

A wave energy converter (WEC) subsystem comprising:

• a float;
• an anchor disposed below the float;
• a hydraulic cylinder connected to the float, the hydraulic cylinder comprising:
• a cylinder body defining a cylinder axis,
• a piston slidably received in the cylinder body, and
• a rod connected to the piston and having a portion extending outside of the cylinder body, the rod and the piston being movable together along the cylinder axis between a retracted position and an extended position;
• and
• a line management system comprising:
• a rod pulley connected to the portion of the rod extending outside of the cylinder body and being movable along the cylinder axis together with the piston and the rod,
• a bottom pulley connected to the float,
• a line connected between the float and the anchor, the line engaging the rod pulley and the bottom pulley,
• a redirection pulley, the line being engaged in the redirection pulley,
• a winch connected to the float, the winch being lockable to maintain a predetermined length in the line,
• during a first stroke of the WEC subsystem:
• float is moving upward, and
• the piston and the rod are moving towards the retracted position;
• and
• during a second stroke of the WEC subsystem:
• the float is moving downward, and
• the piston and the rod are moving toward the extended position;
• the line defining:
• a first segment extending between the winch and the redirection pulley;
• a second segment extending between the redirection pulley and the rod pulley;
• a third segment extending between the rod pulley and the bottom pulley, the third segment being disposed below the second segment;
• and
• a fourth segment extending between the bottom pulley and the anchor;
• a first pitch angle being defined between the second segment and the cylinder axis when the rod is in the retracted position, and a second pitch angle being defined between the second segment and the cylinder axis when the rod is in the extended position, the first pitch angle being greater than the second pitch angle.