skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Submerged electricity generation plane with marine current-driven motors

Abstract

An underwater apparatus for generating electric power from ocean currents and deep water tides. A submersible platform including two or more power pods, each having a rotor with fixed-pitch blades, with drivetrains housed in pressure vessels that are connected by a transverse structure providing buoyancy, which can be a wing depressor, hydrofoil, truss, or faired tube. The platform is connected to anchors on the seafloor by forward mooring lines and a vertical mooring line that restricts the depth of the device in the water column. The platform operates using passive, rather than active, depth control. The wing depressor, along with rotor drag loads, ensures the platform seeks the desired operational current velocity. The rotors are directly coupled to a hydraulic pump that drives at least one constant-speed hydraulic-motor generator set and enables hydraulic braking. A fluidic bearing decouples non-torque rotor loads to the main shaft driving the hydraulic pumps.

Inventors:
; ;
Issue Date:
Research Org.:
Aquantis, Inc, Santa Barbara, CA (USA).
Sponsoring Org.:
USDOE
OSTI Identifier:
1136430
Patent Number(s):
8766466
Application Number:
13/454,059
Assignee:
Aquantis, Inc. (Santa Barbara, CA)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05B - INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
B - PERFORMING OPERATIONS B63 - SHIPS OR OTHER WATERBORNE VESSELS B63B - SHIPS OR OTHER WATERBORNE VESSELS
DOE Contract Number:  
EE0002648
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY

Citation Formats

Dehlsen, James G.P., Dehlsen, James B., and Fleming, Alexander. Submerged electricity generation plane with marine current-driven motors. United States: N. p., 2014. Web.
Dehlsen, James G.P., Dehlsen, James B., & Fleming, Alexander. Submerged electricity generation plane with marine current-driven motors. United States.
Dehlsen, James G.P., Dehlsen, James B., and Fleming, Alexander. Tue . "Submerged electricity generation plane with marine current-driven motors". United States. https://www.osti.gov/servlets/purl/1136430.
@article{osti_1136430,
title = {Submerged electricity generation plane with marine current-driven motors},
author = {Dehlsen, James G.P. and Dehlsen, James B. and Fleming, Alexander},
abstractNote = {An underwater apparatus for generating electric power from ocean currents and deep water tides. A submersible platform including two or more power pods, each having a rotor with fixed-pitch blades, with drivetrains housed in pressure vessels that are connected by a transverse structure providing buoyancy, which can be a wing depressor, hydrofoil, truss, or faired tube. The platform is connected to anchors on the seafloor by forward mooring lines and a vertical mooring line that restricts the depth of the device in the water column. The platform operates using passive, rather than active, depth control. The wing depressor, along with rotor drag loads, ensures the platform seeks the desired operational current velocity. The rotors are directly coupled to a hydraulic pump that drives at least one constant-speed hydraulic-motor generator set and enables hydraulic braking. A fluidic bearing decouples non-torque rotor loads to the main shaft driving the hydraulic pumps.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {7}
}

Patent:

Save / Share:

Works referenced in this record: