CPC F17C 1/08 (2013.01) [F17C 2201/0152 (2013.01); F17C 2201/0171 (2013.01); F17C 2203/012 (2013.01); F17C 2205/0352 (2013.01); F17C 2221/013 (2013.01); F17C 2221/033 (2013.01); F17C 2270/0105 (2013.01)] | 20 Claims |
1. A four-lobe cargo tank for transporting and/or storage of liquified gases,
wherein the tank comprises four main lobes, each with a cylinder sector outer shell and main lobe axis,
wherein said four main lobes are arranged with said four main lobe axis axial-parallel with and about a common main central axis,
wherein said four main lobes are joined by four web frames with four corresponding diagonally arranged perforated bulkheads directed outwardly from said main central axis,
wherein said tank further comprises first and second end covers, each end cover comprising four quarter spherical shell portions, each forming an end portion of said cylinder sector outer shell, and
wherein said quarter spherical shell portions of said first and second end covers, are respectively joined and closing toward said main central axis by first and second four diagonally arranged cylindrical 45-degree cut pipe portions, each arranged with an axis thereof transverse to said main central axis.
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