MARINE SELF-PROPELLED SELF-ELEVATING CRANE VESSEL Russian patent published in 2016 - IPC B63B35/44 B66C23/52 E02B17/00 

FIELD: ship building.

SUBSTANCE: invention relates to ship building and can be used to create self-elevating crane vessels, optimized for performing construction and erection works at offshore oil and gas production facilities. Marine self-propelled self-elevating crane vessel comprises hull and support-elevating device with three supports, with has shoes and portals with lifting mechanisms, as well as full revolving hoisting crane. Hull is made with ship hull lines. Surface part of hull in aft is made with onboard lugs-sponsons, which are interconnected by strong volumetric structure, superstructure. In onboard lugs-sponsons recesses are made to accommodate supports shoes. In hull aft part two supports are mounted at ship sides on said lugs-sponsons so, that in travel position shoes of said supports are arranged above waterline and recessed in said recesses in lugs-sponsons, and middle support is mounted in ship hull diametrical plane. Lifting crane is mounted with possibility to rotate its rotary part around central support.

EFFECT: enabling expanded operational functionality of self-elevating crane vessels.

1 cl, 6 dwg