Cycloturbine modular river current energy converter and method and apparatus for deploying marine hydrokinetic turbine assembly to harvest riverine and ocean tidal current energy

Patent metadata

Field	Value
Publication number	US-11927170-B2
Application number	US-202217572232-A
Country	US
Kind code	B2
Filing date	Jan 10, 2022
Priority date	Jan 13, 2021
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

A hydrokinetic turbine system for harvesting energy from riverine and tidal sources, including a first floating dock, a marine hydrokinetic turbine mounted on the first floating dock, and a second floating dock. The system further includes a winch assembly mounted on the second floating dock and operationally connected to the first floating dock and a linkage assembly operationally connected to the first floating dock and to the second floating dock. The linkage assembly may be actuated to pull the first floating dock into contact with the second floating dock. The linkage assembly may be actuated to distance the first floating dock from the second floating dock, and the winch assembly may be energized to orient the first floating dock into a position wherein the marine hydrokinetic turbine is above the first floating dock and wherein the winch assembly may be energized to orient the first floating dock into a position wherein the marine hydrokinetic turbine is below the first floating dock.

First claim

What is claimed is:

1. A hydrokinetic turbine system for harvesting energy from riverine and tidal sources, comprising;
a first floating dock;
a marine hydrokinetic turbine mounted on the first floating dock;
a second floating dock;
a winch assembly mounted on the second floating dock and operationally connected to the first floating dock;
a linkage assembly operationally connected to the first floating dock and to the second floating dock;
wherein the linkage assembly may be actuated to pull the first floating dock into contact with the second floating dock;
wherein the linkage assembly may be actuated to distance the first floating dock from the second floating dock;
wherein the winch assembly may be energized to orient the first floating dock into a position wherein the marine hydrokinetic turbine is above the first floating dock and wherein the winch assembly may be energized to orient the first floating dock into a position wherein the marine hydrokinetic turbine is below the first floating dock.

2. The hydrokinetic turbine system of claim 1 and further comprising a mooring assembly connected to the first and second floating docks for securing the respective floating docks in place.

3. The hydrokinetic turbine system of claim 1 wherein the marine hydrokinetic turbine further comprises a first section defining a first set of three operationally connected hydrofoils; a second section defining a second set of three operationally connected hydrofoils; and a third section defining a third set of three operationally connected hydrofoils; wherein the first, second, and third sections are operationally connected to one another; and wherein each respective section defines an independently variable pitch angle.

4. The hydrokinetic turbine system of claim 3 wherein the marine hydrokinetic turbine further comprises a cam; and a linkage assembly operationally connected to the cam and to each respective section; wherein the linkage assembly adjusts the rotating phase angels of each respective section.

5. The hydrokinetic turbine system of claim 4 wherein the marine hydrokinetic turbine further comprises a plurality of water flow sensors arrayed about the cycloidal turbine; and an electronic controller operationally connected to the plurality of water flow sensors and to the linkage assembly; wherein the electronic controller induces the linkage assembly to independently vary the rotating phase angle of each section to optimize hydrofoil operating efficiency.

6. The hydrokinetic turbine system of claim 5 wherein the electronic controller induces the linkage assembly to vary the rotating phase angle of each section to minimize oscillatory loads generated by the cycloidal turbine.

7. The hydrokinetic turbine system of claim 6 wherein the linkage assembly may induce sections to be pitched for gaining enough force from flowing water to turn the turbine; wherein the linkage assembly may induce sections to be pitched for generating a maximum amount of energy from flowing water; and wherein the linkage assembly may induce sections to be pitched for not turning in response to flowing water.

8. The hydrokinetic turbine system of claim 1 wherein the marine hydrokinetic turbine further comprises a first set of three operationally connected hydrofoils; a second set of three operationally connected hydrofoils; a third set of three operationally connected hydrofoils; and a pitch-varying assembly operationally connected to the first, second, and third sets of operationally connected hydrofoils; wherein the pitch-varying assembly may adjust the pitch of each respective set of hydrofoils in response to ambient water flow conditions to define a unique pitch angle.

Assignees

• Chen Jun
• Zhang Haiyan H
• Jensen Charles Greg
• Purdue Research Foundation

Inventors

• Chen Jun
• Zhang Haiyan H
• Jensen Charles Greg

Classifications

• F03B3/145 Primary

  Mechanisms for adjusting the blades (if the regulation aspect is preponderant, see F03B15/00 and subgroups) · CPC title

• B63B1/28

  with movable hydrofoils · CPC title

• B63B21/16

  using winches (winches per se B66D) · CPC title

• B63B35/44

  Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices {(construction methods for floating offshore platforms B63B75/00)} · CPC title

• B63B2035/4466

  for converting water energy into electric energy, e.g. from tidal flows, waves or currents · CPC title