Roll-damping tanks for waterborne vessels

Details Roll-damping tanks for waterborne vessels Roll-damping tanks for waterborne vessels

1974-05-02

1976-04-20

Blix, Trygve M.

Ships

Ballasting

Water tanks

B63B 3903

Patent

active

039510891

ABSTRACT:
In a ship's roll damping tank, means are provided that are operative to extract substantial wave velocity energy from the liquid in the tank. Perforated pipes are laid in spaced parallel relationship across the bottom of the tank, i.e. in the fore and aft direction of the ship, to create, by injection from the pipes into the tank liquid, upflows of fluid that interfere with the normal orbital movement of the tank liquid wave particles.
Wave velocity energy can likewise be extracted by means of an apertured false bottom, upward protuberances on the tank floor, and perforated or unperforated horizontal end baffles.

REFERENCES:
patent: 3272169 (1966-09-01), Ward
patent: 3282239 (1966-11-01), Field et al.
patent: 3513797 (1970-05-01), Frankel

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