Patent ID: 8517700

Claim:
A submersible pump for pumping liquid into a marine structure, said pump being adapted to be located in a tube, said pump comprising: an upper portion and a lower portion wherein said upper portion is adapted to be connected to a means for suspending said pump in said tube; a vertical direction extending from said lower portion to said upper portion; an inlet for allowing said liquid into said pump, wherein said inlet is disposed in an end of said lower portion; an outlet for allowing said liquid out of said pump, wherein said outlet is disposed on around a circumference of said pump; and a sealing means located downstream of said inlet and said outlet in said vertical direction, said sealing means being adapted to seal against an inner surface of said tube in the event of a free fall of said pump; and a shock absorber being adapted to cushion a landing of said pump at a pumping location, wherein: said pump is adapted to be locked from rotation in said pumping location by means of a locking arrangement, a first portion of said locking arrangement being connected to said tube at said pumping location and a second portion of said locking arrangement being connected to said pump, and said second portion of said locking arrangement comprises a metal sheet arranged between said shock absorber and said pump and along said periphery of said pump, said metal sheet having an arrangement of downwardly inclined resilient lugs.