Hydraulic and earth engineering – Fluid control – treatment – or containment – Extracting power from moving fluid
Patent
1982-01-11
1984-08-07
Cohen, Irwin C.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Extracting power from moving fluid
60398, 60407, 405 78, 417100, E02B 908, F03B 1312
Patent
active
044640803
ABSTRACT:
Apparatus permitting the utilization of large volumes of water in the harnessing and extracting of a portion of the power generated by the rise and fall of ocean tides, ocean currents, or flowing rivers includes the provision of a dam, and a specialized single cavity chamber of limited size as compared wth the water head enclosed by the dam, and an extremely high volume gating system in which all or nearly all of the water between the high and low levels on either side of the dam is cyclically gated through the single chamber from one side of the dam to the other so as to alternately provide positive air pressure and a partial vacuum within the single chamber. In one embodiment, the specialized chamber has a barrier at the bottom which divides the bottom of the chamber in half, large ports at the bottom of the chamber to permit inflow and outflow of high volumes of water, and ganged structures having a higher total area than that of corresponding ports, in which the structures form sluice gates to selectively seal off and open different sets of ports. In another embodiment, a single chamber is used without a barrier. In this embodiment, vertical sluice gates are used which may be activated automatically by pressures acting on the sluice gates as a result of ingested and expelled water.
REFERENCES:
patent: 398779 (1889-02-01), Hagerty
patent: 968016 (1910-08-01), Willvome
patent: 1342682 (1920-06-01), Knowlton
patent: 2457594 (1948-12-01), Nettel et al.
patent: 2484183 (1949-10-01), Paulson
patent: 4095423 (1978-06-01), Gorlov
patent: 4098081 (1978-07-01), Woodman
patent: 4103490 (1978-08-01), Gorlov
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