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1. (WO2018087571) SUBMERGED HEAVING WAVE ENERGY CONVERTER

Pub. No.:    WO/2018/087571    International Application No.:    PCT/GB2017/053411
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Tue Nov 14 00:59:59 CET 2017
IPC: F03B 13/20
F03B 13/18
Applicants: AQUA POWER TECHNOLOGIES LIMITED
Inventors: ETHERINGTON, Samuel Devon
Title: SUBMERGED HEAVING WAVE ENERGY CONVERTER
Abstract:
A wave energy converter (1) has: a buoyant structure (2) which, in use, floats on water; a submerged wave energy converter element (3) which, in use, is tethered below the buoyant structure (2) and moves in phase with the buoyant structure (2). a generator (12); a generator drive mechanism (37) on the submerged wave energy converter element (3), the drive mechanism comprising a pulley transmission 13, a pulley 31, a biasing element, for example a spring (29), and a rotational input drive shaft (19); a drive member (11) operably connected to the input drive shaft (19) via a generator drive mechanism 37, the drive member (11) being moveable back and forth between a first position and a second position; In use, when the buoyant structure (2) encounters a wave crest, the spacing between the buoyant structure (2) and the distal end (furthest away from the pivot) of the drive members (11) increases and the drive member (11) is hydro dynamically forced towards the second position, and, when the buoyant structure (2) encounters a wave trough, the spacing between the buoyant structure (2) and the distal end (furthest away from the pivot) of the drive members (11) decreases and the drive member (11) is urged towards the first position by the biasing element (29). The back and forth movement of the drive member (11) between the first and second positions causes the generator drive mechanism (37) to engage and rotate the input drive shaft (19) and, thereby, causes the generator (12) shaft to rotate.