Power plants – Motor having a buoyant working member – With means to vary buoyancy of working member
Patent
1977-07-06
1980-06-24
Ostrager, Allen M.
Power plants
Motor having a buoyant working member
With means to vary buoyancy of working member
60398, 290 53, 417333, F03B 1312
Patent
active
042088780
ABSTRACT:
A tide motor energy source includes a tidal piston with a valved chamber. The piston drives a hydraulic ram to generate electrical power through a pressure accumulator and hydraulic motor. The ram can be locked hydraulically to enable the tidal piston to be held fixed at a desired elevation and the valves in the chamber permit it to be filled with water or air. The piston with its chamber filled with air at its low tide position and then released for controlled ascent while submerged acts as a submerged float for driving the ram upwardly while the tide runs in during one phase of its operation. The piston with its chamber filled with water while locked at its highest position as the tide begins to run out, and then released to fall under control, acts as a weight suspended in air after the water level drops below the piston for driving the ram downwardly during the second phase of its operation. The rising and falling motion of the tidal piston is used as the energy source.
REFERENCES:
patent: 925581 (1909-06-01), Kendall
patent: 1195386 (1916-08-01), Mould
patent: 1364619 (1921-01-01), Dolliver
patent: 1502901 (1924-07-01), Bristow
patent: 1665140 (1928-04-01), Master
patent: 2470312 (1949-05-01), Levin
patent: 3515889 (1970-06-01), Kammerer
patent: 3668412 (1972-06-01), Vrana et al.
Husar Stephen F.
Ostrager Allen M.
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