Fuel tank arrangement in a marine vessel
AssigneeWäRtsilä Finland Oy
InventorEmanuele D'Urso
Life of this patent
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Abstract
A fuel tank arrangement of a marine vessel is disclosed, having an LNG-fuel tank formed of an inner shell, an outer shell, an insulation therebetween and a tank connection space provided at an end of the LNG-fuel tank, the inner shell having an end part at an end of the inner shell facing the tank connection space. A collar is fastened to the end part of the inner shell and extends conically outwardly from the inner shell. The collar has an outer rim to which an additional shell extending in an axial direction away from the inner shell is fastened, and the additional shell has an end rim opposite the collar to which an end cover of the tank connection space is fastened.
Claims11
A fuel tank arrangement for a marine vessel for storing LNG-fuel, the fuel tank arrangement comprising:
- an LNG-fuel tank;
- the LNG-fuel tank including a tank inner shell which encloses a storage space for LNG-fuel, a tank outer shell, LNG-fuel tank insulation therebetween, and a collar;
- and
- the tank outer shell has a tank outer shell end cover positioned at an axial end of the LNG-fuel tank;
- the collar has a collar inner rim and a collar outer rim, the collar inner rim being fastened to the tank inner shell;
- a tank connection space;
- the tank connection space includes a pressurized gas tight cavity formed by:
- a connection space shell;
- a connection space end cover;
- and
- the tank outer shell end cover;
- connection space shell insulation facing away from the tank connection space and having a thickness of less than half of that of the LNG-fuel tank insulation;
- wherein the tank connection space is separate and distinct from the storage space for LNG-fuel;
- wherein the collar is positioned between the tank inner shell and a tank inner shell end cover;
- wherein the LNG-fuel tank is configured for containing fuel;
- and
- wherein the tank connection space is configured for containing equipment.
Dependencies are inferred from the claim text.