Arrangement and method for collecting oil

1. A vessel comprising:

a hull having a broad side and formed with an opening in the broad side of the hull,

an oil separating means for receiving oil and water and separating the oil from the water, and

an auxiliary device for cooperating with the hull to collect oil and lead the oil and water to the oil separating means, wherein the auxiliary device comprises at least two wall members that are interconnected so that they are movable with respect to each other, the auxiliary device, when in a closed position, forms part of tho hull, and the hull has a rear end and a forward end and the auxiliary device is attached to the hull at the rear end thereof.

2. A vessel according to claim 1 , wherein the auxiliary device is attached to the hull at a broad side thereof.

3. A vessel according to claim 1 , wherein the oil separating means is located at least partly inside the hull of the vessel.

4. A vessel according to claim 1 , wherein the oil separating means is located on a deck of the vessel.

5. A vessel according to claim 1 , wherein the oil separating means is attached to the hull in a manner allowing detachment of the oil separating means from the hull.

6. A vessel according to claim 1 , wherein the auxiliary device is attached to the hull in a manner allowing turning movement of the auxiliary device relative to the hull.

7. A vessel comprising:

a hull having a broad side and formed with an opening in the broad side of the hull,

an oil separating means for receiving oil and water and separating the oil from the water, and

an auxiliary device for cooperating with the hull to collect oil and lead the oil and water to the oil separating means, wherein the auxiliary device comprises a larger wall member formed with an opening and a smaller wall member that is connected to the larger wall member in a manner such that in a first position the smaller wail member blocks the opening in the larger wall member and in a second position the smaller wall member is turned inward of the larger wall member relative to the hull.

8. A vessel according to claim 7 , wherein the hull is formed with an opening in a broad side of the hull and the larger wall member is turnable relative to the hull between a first position in which it blocks the opening in the broad side of the hull and a second position in which it is deployed outboard of the hull.

9. A vessel according to claim 8 , wherein the auxiliary device has a first operational condition in which the larger wall member is in its first position and the smaller wall member is in its first position and the auxiliary device blocks the opening in the broad side of the hull and the smaller wall member blocks the opening in the larger wall member, a second operational condition in which the larger wall member is in its first position and the smaller wall member is in its second position, and a third operational condition in which the larger wall member is in its second position and the smaller wall member is in its first position.

10. A vessel according to claim 7 , comprising a device for separating oil from ice present in the water prior to feeding the oil to the oil separating means, the oil separating device having a bottom wall that is inclined to horizontal and is located below the smaller wall member.

11. A vessel comprising:

a hull having a broad side and formed with an opening in the broad side of the hull,

an oil separating means for receiving oil and water and separating the oil from the water, and

an auxiliary device for cooperating with the hull to collect oil and lead the oil and water to the oil separating means, wherein the auxiliary device is turnable relative to the hull according to the vessel's direction of travel, the auxiliary device comprises at least two wall members that are interconnected so that they are movable with respect to each other, the auxiliary device, when in a closed position, forms part of the hull, the hull has first and second opposite longitudinal broad sides that are asymmetrical with respect to each other, the auxiliary device is provided at the first broad side, and the first broad side is substantially straight over a substantial portion of its length.

12. A vessel comprising:

a hull formed with an opening in a broad side of the hull,

an oil separating means for receiving oil and water and separating the oil from the water, the oil, separating means being located within the hull and being accessible from outside the hull through said opening, and

an auxiliary device that is movable with respect to the hull between a first position in which the auxiliary device blocks said opening and a second position in which the auxiliary device is deployed outboard of the vessel for cooperating with the hull in collecting oil and leading the oil and water through said opening to the oil separating means, wherein the auxiliary device comprises at least two wall members that are interconnected so that they are movable with respect to each other.

13. A vessel according to claim 12 , wherein the wall members comprise a larger wall member that is turnable relative to the hull between a first position in which it blocks the opening in the broad side of the hull and a second position in which it is deployed outboard of the hull, and a smaller wall member that is attached to the larger wall member and is turnable relative to the larger wall member between a first position in which it blocks an opening in the larger wall member and a second position in which it is turned inward of the larger wall member relative to the hull.