Hydraulic and earth engineering – Fluid control – treatment – or containment – Extracting power from moving fluid
Patent
1991-05-08
1991-12-24
Taylor, Dennis L.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Extracting power from moving fluid
60370, 60398, 290 53, 290 54, E02B 900, E02B 908, F03B 1312
Patent
active
050747100
ABSTRACT:
The invention, which provides a system for harnessing power from current flow or tidal movement in a body of water, comprises first and second hydro-pneumatic chambers each having ingress and egress below the water surface near the river or ocean floor and water gates operative to open or seal the ports to the passage of water. In an exemplary embodiment, the gates are sychronized by shafts so that the ingress ports of each chamber are connected to the egress ports of each other chamber. Thus, one set of gates is closed, while the other is open, thereby allowing water to flow into one chamber and build air pressure therein and allowing water to flow out of the other chamber and create a partial vacuum therein. A pipe connects the chambers, and an air turbine harnesses the air movement within the pipe. When water levels are equilibrated, the open set of gates is closed by a counterweight, and the other set is allowed to open by natural force of the water differential. The water gates may be comprised of a plurality of louvers which are ganged for simultaneous opening and closing. The system is designed to operate with air turbines or other pneumatic devices. Its design minimizes construction cost and environmental impact, yet provides a clean renewable energy source.
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Northeastern University
Ricci John
Taylor Dennis L.
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