Deep-sea mining vehicle

A deep-sea mining vehicle for taking up mineral deposits from a seabed at great depth, wherein the vehicle comprises:

• a support frame provided with means for moving the vehicle forward on the seabed, with an at least temporary storage for the mineral deposits taken up, and with a suction head having a width and an open suction side which is directed toward the seabed and along which the mineral deposits are taken up,
• wherein the taking up of the mineral deposits and the transport thereof to an outlet, which is connected to a suction conduit leading to the storage, is supported by a feed opening for water which is connected to an inlet of the suction head, and by a pressure chamber for carrying the water at a high exit speed through the feed opening and toward the outlet along an internal wall part which mutually connects the feed opening and the outlet,
• wherein the internal wall part is curved such that the distance between the internal wall part and the open suction side of the deep-sea mining vehicle decreases from the inlet and then increases again toward the outlet,
• wherein the internal wall part comprises a first wall part segment which has a convex curvature from the inlet which decreases the distance between the internal wall part and the open suction side, comprises a linear middle part segment, which keeps the distance between the internal wall part and the open suction side constant, and a second wall part segment which has a concave curvature which increases the distance between the internal wall part and the open suction side and connects to the outlet,
• wherein the feed opening comprises a gap-like feed opening that extends over the whole width of the suction head in a direction running parallel to the width direction of the suction head and the gap-like feed opening has an upper wall which runs continuously into the wall part.