Ship buoyancy control system

Details Ship buoyancy control system Ship buoyancy control system

2011-04-12

2011-04-12

Avila, Stephen (Department: 3617)

Ships

Ballasting

Water tanks

Reexamination Certificate

active

07921790

ABSTRACT:
A tank (10) of a ship (1) is provided with an inflow port (6) and an outflow port (7) opening through a bottom of the ship (13). The inflow and outflow ports are spaced apart from each other in a headway direction of the hull. The ports are equipped with closure means (9), which closes the ports so as to ensure hull buoyancy by means of air in the tank. The ports allow seawater outside the ship to flow into the tank through the inflow port and the seawater in the tank to flow out of the ship through the outflow port, with use of headway motion of the ship. A partition (2) provides a weir extending in a widthwise direction of the hull in the tank, and divides a region in the tank into an inflow area (3) and an outflow area (4). The tank, partition, inflow port, outflow port and closure means constitute a ship buoyancy control system.

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International Search Report issued on Mar. 18, 2008 in corresponding International Patent Application No. PCT/JP2007/073761.
Extended European Search Report for corresponding European Application 07850335.6-1254; dated Dec. 15, 2010.

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