Assembly for capturing oscillating fluid energy with hinged propeller and segmented driveshaft

Patent metadata

Field	Value
Publication number	US-11754035-B2
Application number	US-202117227491-A
Country	US
Kind code	B2
Filing date	Apr 12, 2021
Priority date	Apr 12, 2021
Publication date	Sep 12, 2023
Grant date	Sep 12, 2023

Abstract

An oscillating fluid energy capturing assembly, including at least one hinged propeller assembly, each hinged propellor assembly of the at least one hinged propeller assembly including a driveshaft including a first end and a second end, a first plurality of blades pivotably connected to the first end, and a second plurality of blades pivotably connected to the second end.

First claim

What is claimed is:

1. An oscillating fluid energy capturing assembly, comprising:
at least one hinged propeller assembly, each hinged propellor assembly of the at least one hinged propeller assembly including:
a driveshaft including a first end and a second end;
a first plurality of blades pivotably connected to the first end, the first plurality of blades operatively arranged to fold radially inward in a first axial direction from a first deployed position to a first retracted position; and
a second plurality of blades pivotably connected to the second end, the second plurality of blades operatively arranged to fold radially inward in a second axial direction, opposite the first axial direction, from a second deployed position to a second retracted position;
wherein:
at least one blade of the first plurality of blades and the second plurality of blades comprises a curvilinear flared section; and
in the first retracted position, the curvilinear flared section is concave, facing at least partially radially inward.

2. The oscillating fluid energy capturing assembly as recited in claim 1 , wherein at least one blade of the first plurality of blades and the second plurality of blades is connected to a biasing element.

3. The oscillating fluid energy capturing assembly as recited in claim 1 , wherein:
at least one blade of the first plurality of blades comprises a first curvilinear flared section curving in the first axial direction opposite of the direction of fluid flow in the second axial direction; and
at least one blade of the second plurality of blades comprises a second curvilinear flared section curving in the second axial direction opposite of the direction of fluid flow in the first axial direction.

4. The oscillating fluid energy capturing assembly as recited in claim 1 , wherein the curvilinear flared section is operatively arranged to curve in a direction toward the direction of fluid flow to help deploy the at least one blade.

5. An oscillating fluid energy capturing assembly, comprising:
a driveshaft including a first end and a second end;
a first plurality of blades pivotably connected to the first end; and
a second plurality of blades pivotably connected to the second end;
wherein:
in a first state of the oscillating fluid energy capturing assembly, the first plurality of blades are deployed and the second plurality of blades are retracted to prevent fluid engaged with the second plurality of blades from counteracting fluid engagement with the first plurality of blades;
at least one blade of the first plurality of blades and the second plurality of blades comprises a curvilinear flared section; and
in a retracted position of the at least one blade, the curvilinear flared section curves radially inward.

6. The oscillating fluid energy capturing device as recited in claim 5 , wherein in a second state of the oscillating fluid energy capturing assembly, the second plurality of blades are deployed and the first plurality of blades are retracted to prevent fluid engaged with the first plurality of blades from counteracting fluid engagement with the second plurality of blades.

7. The oscillating fluid energy capturing assembly as recited in claim 5 , wherein:
the first plurality of blades fold radially inward in a first axial direction from a first deployed position to a first retracted position; and
the second plurality of blades fold radially inward in a second axial direction, opposite the first axial direction, from a second deployed position to a second retracted position.

8. The oscillating fluid energy capturing assembly as recited in claim 5 , wherein:
at least one blade of the first plurality of blades comprises a first flared section, the first flared section curved in a first axial direction; and
at least one blade of the second plurality of blades comprises a second flared section, the second flared section curved in a second axial direction, opposite the first axial direction.

9. The oscillating fluid energy capturing assembly as recited in claim 5 , wherein at least one blade of the first plurality of blades and the second plurality of blades is connected to a biasing element.

10. The oscillating fluid energy capturing assembly as recited in claim 5 , further comprising:
a first biasing element operatively arranged to bias at least one blade of the first plurality of blades radially outward in a first axial direction; and
a second biasing element operatively arranged to bias at least one blade of the second plurality of blades radially outward in a second axial direction, opposite the first axial direction.

11. An oscillating fluid energy capturing assembly, comprising:
a driveshaft including a first end and a second end;
a first plurality of blades pivotably connected to the first end, the first plurality of blades displaceable radially inward in a first axial direction from a first deployed position to a first retracted position; and
a second plurality of blades pivotably connected to the second end, the second plurality of blades displaceable radially inward in a second axial direction, opposite the first axial direction, from a second deployed position to a second retracted position;
wherein:
a first biasing element operatively arranged to bias at least one blade of the first plurality of blades radially outward in the second axial direction; and
a second biasing element operatively arranged to bias at least one blade of the second plurality of blades radially outward in the first axial direction.

12. The oscillating fluid energy capturing assembly as recited in claim 11 , wherein at least one blade of the first plurality of blades and the second plurality of blades comprises a flared section, the flared section being curvilinear.

13. The oscillating fluid energy capturing assembly as recited in claim 11 , wherein:
at least one blade of the first plurality of blades comprises a first flared section, the first flared section curved toward the first axial direction;
at least one blade of the second plurality of blades comprises a second flared section, the second flared section curved toward the second axial direction.

14. The oscillating fluid energy capturing assembly as recited in claim 11 , wherein at least one blade of the first plurality of blades and the second plurality of blades comprises a curvilinear flared section curving in a direction opposite of the direction of fluid flow.

15. The oscillating fluid energy capturing assembly as recited in claim 11 , wherein:
at least one blade of the first plurality of blades and the second plurality of blades comprises a curvilinear flared section; and
in the first retracted position, the curvilinear flared section is concave, facing radially inward.

16. The oscillating fluid energy capturing assembly as recited in claim 11 , wherein:
at least one blade of the first plurality of blades and the second plurality of blades comprises a curvilinear flared section; and
in the first retracted position, the curvilinear flared section curves radially inward.

Assignees

• Suddaby Loubert S

Inventors

• Suddaby Loubert S

Classifications

• F03B13/262 Primary

  using the relative movement between a tide-operated member and another member · CPC title

• Y02E10/30

  Energy from the sea, e.g. using wave energy or salinity gradient · CPC title

• F05B2240/30

  Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor · CPC title

• F05B2240/91

  on a stationary structure · CPC title

• F05B2240/97

  on a submerged structure · CPC title