Mobile underwater docking system and autonomous underwater vehicle

Patent metadata

Field	Value
Publication number	US-11220316-B2
Application number	US-202016864212-A
Country	US
Kind code	B2
Filing date	May 1, 2020
Priority date	Jul 11, 2017
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

A docking system has flat funnel and a slotted ramp at the end of the flat funnel. The slotted ramp has a plurality of inclined planes, each on a respective side of the slot. A docking adapter, fitted over an underwater vehicle, includes a guide plane and a mask. The flat funnel guides the guide plane to the top of the ramp during docking, so that the underwater vehicle may be charged. Another aspect of the invention is a highly maneuverable glider including a forwardly mounted buoyancy module followed a pitch module, followed by a processing module, followed by a roll module, mounted concentrically with respect to each other. The glider may be attached to any docking system, not just that of the present invention. When used in conjunction with the docking system of the present invention, the glider may be attached to either the flat funnel or the docking adapter of the docking system of the present invention.

First claim

What is claimed is:

1. An autonomous underwater vehicle with a center of gravity, and having buoyancy, a roll angle, and yaw angle when underwater, said vehicle comprising:
a hull having mounted therein:
a rail, said rail having mounted thereon:
a buoyancy module mounted forward of the center of gravity of said vehicle, said buoyancy module comprising a ballast tank of variable volume and a pump, located behind said ballast tank, that adds and removes water from said ballast tank, thereby changing the buoyancy of said vehicle;
a pitch module located behind said buoyancy module, said pitch module comprising a mass having a position with respect to said rail, and an actuator to drive said position of said mass forward and backward with respect to said rail; and
a roll module located behind said pitch module, said roll module comprising a servomotor, mounted to said rail, said roll module controlling said vehicle's roll angle and yaw by action of said servomotor;
a processing module, located between said pitch module and said roll module and being in communication with said roll, pitch, and buoyancy modules, that controls functioning of said roll, pitch, and buoyancy modules;

said roll, buoyancy, and pitch modules being mounted concentrically with respect to each other.

2. The vehicle of claim 1 , wherein said roll, buoyancy, and pitch modules are mounted concentrically with respect to said hull.

3. The vehicle of claim 2 , wherein said processing module is also mounted concentrically with respect to said hull.

4. The vehicle of claim 1 , wherein said pitch module is mounted immediately behind said buoyancy module.

5. The vehicle of claim 1 , wherein said pump is a micropump in fluid communication with said ballast tank.

6. The vehicle of claim 1 , wherein said processing module comprises a central processing unit that receives status signals from said pitch and buoyancy modules and sends control signals to said pitch and buoyancy modules based on said status signals.

7. The vehicle of claim 1 , wherein said ballast tank is cylindrical.

8. The vehicle of claim 1 , wherein said ballast tank comprises a ballast piston, the buoyancy of said ballast tank being dependent on where said ballast piston is located.

9. The vehicle of claim 8 , wherein a draw wire sensor detects the location of said ballast piston.

10. The vehicle of claim 1 , wherein said mass is a battery.

11. The vehicle of claim 1 , wherein a draw wire sensor detects the position of said mass.

Assignees

• Us Gov Sec Navy

Inventors

• Mahmoudian Nina
• Page Brian

Classifications

• B63G2008/008

  Docking stations for unmanned underwater vessels, or the like · CPC title

• B63G8/001 Primary

  Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations (self-propelled or direction controlled diving chambers with mechanical link to a base B63C11/42) · CPC title

• B63G2008/004

  autonomously operating · CPC title

• B63C11/52

  Tools specially adapted for working underwater, not otherwise provided for · CPC title

• B63G8/42

  Towed underwater vessels · CPC title