skip to main content

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

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.
Authors:
; ;
Publication Date:
OSTI Identifier:
1136430
Report Number(s):
8,766,466
13/454,059
DOE Contract Number:
EE0002648
Resource Type:
Patent
Research Org:
Aquantis, Inc, Santa Barbara, CA (USA).
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY