Inertial hydrodynamic pump and wave engine

Patent metadata

Field	Value
Publication number	US-12497702-B2
Application number	US-202117798070-A
Country	US
Kind code	B2
Filing date	Feb 18, 2021
Priority date	Feb 19, 2020
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

A buoyant hydrodynamic pump is disclosed that can float on a surface of a body of water. Wave-driven oscillations result in periodic upward ejections of water inside a downwardly projecting tube that can be collected in a reservoir. Water within such a reservoir may return to the body of water via a turbine, thereby generating electrical power, or the device's pumping action can be used for other purposes such as water circulation, propulsion, dissolved minerals extraction, or cloud seeding.

First claim

We claim:

1 . A hydrodynamic pump, comprising:
an upper hull enclosure adapted to float at a surface of a body of liquid; a liquid collecting chamber at least partially housed within the upper hull enclosure, the liquid collecting chamber adapted to confine liquid and gas at elevated pressure; a liquid pressurizing columnar conduit extending below the upper hull enclosure, the liquid pressurizing columnar conduit comprising an ingress orifice disposed outside the upper hull enclosure, an injection orifice opening into the liquid collecting chamber, and an interior wall defining a liquid pressurizing surface adapted to pressurize liquid in the liquid pressurizing columnar conduit when the hydrodynamic pump oscillates vertically in the body of liquid to inject liquid into the liquid collecting chamber; a first effluent conduit configured to drain liquid from the liquid collecting chamber and having an external effluent port for discharging liquid from the first effluent conduit; and a first flow governor adapted to maintain a liquid pressure differential across the external effluent port.

2 . The hydrodynamic pump of claim 1 , wherein the first flow governor comprises a filter adapted to remove and sequester one of a substance dissolved in liquid and a substance suspended in liquid.

3 . The hydrodynamic pump of claim 2 , wherein the filter comprises a lithium adsorbent material adapted to remove one of lithium, lithium salts, and lithium ions from seawater.

4 . The hydrodynamic pump of claim 2 , wherein the filter is confined in an interior of the liquid collecting chamber and comprises one of an adsorbent material and an absorbent material.

5 . The hydrodynamic pump of claim 1 , wherein the injection orifice of the liquid pressurizing columnar conduit is spaced from a floor of the liquid collecting chamber to reduce backflow of liquid from the liquid collecting chamber to the liquid pressurizing columnar conduit.

6 . The hydrodynamic pump of claim 1 , wherein the liquid collecting chamber is configured to accrue a liquid ballast having greater volume than an internal volume of the liquid pressurizing columnar conduit to augment a momentum of the hydrodynamic pump.

7 . The hydrodynamic pump of claim 1 , further comprising a light configured to illuminate one of an interior of the liquid collecting chamber and an interior of the liquid pressurizing columnar conduit, said light powered by an energy of liquid exiting the liquid collecting chamber.

8 . The hydrodynamic pump of claim 1 , further comprising a second effluent conduit configured to drain liquid from the liquid collecting chamber and further configured to yaw the hydrodynamic pump when a rate of liquid discharge from the second effluent conduit exceeds a rate of liquid discharge from the first effluent conduit.

Assignees

• Lone Gull Holdings Ltd

Inventors

• Sheldon-Coulson Garth Alexander
• Moffat Brian Lee
• Place Daniel William
• Thorson Ivar Lee

Classifications

• F04B17/00

  Pumps characterised by combination with, or adaptation to, specific driving engines or motors · CPC title

• F03B13/14

  using wave energy · CPC title

• C25B15/08

  Supplying or removing reactants or electrolytes; Regeneration of electrolytes · CPC title

• C25B1/04 Primary

  by electrolysis of water · CPC title

• B63B1/02

  deriving lift mainly from water displacement (B63B1/16 takes precedence) · CPC title