Ocean thermal energy conversion valve

Details Ocean thermal energy conversion valve Ocean thermal energy conversion valve

1977-06-23

1978-06-13

Cohan, Alan

Fluid handling

Larner-johnson type valves; i.e., telescoping internal valve...

137236R, 251 11, 251282, 251294, 251339, F16K 3146

Patent

active

040943348

ABSTRACT:
A fluid flow control valve to be interposed in the depending end portion of a large diameter casing projecting downwardly below the ocean thermocline and forming a cold water passageway for moving water to the surface. The valve includes a jacket surrounding the casing and spanning a transverse partition and ports in the casing wall above the partition. A control line supported sleeve valve, having a length at least equal to the spacing between the partition and upper limit of the casing ports, is coaxially disposed in the casing and includes upper and lower floatation chambers slidably contacting the inner surface of the casing wall and spaced-apart a distance at least as great as the vertical extent of the casing ports. Inflatable seals, surrounding the floatation chambers, are selectively inflated with the floatation chambers to provide buoyancy and for opening and closing the passageway in accordance with the position of the sleeve valve.

REFERENCES:
patent: 2516996 (1950-08-01), Jensen
patent: 2759699 (1956-08-01), Rush

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