MARINE PIPELINE INSTALLATION TENSIONER

摘要

A marine pipeline installation tensioner (40) comprising a tensioner frame (41) and multiple track units (42) mounted in said frame, wherein each track unit includes an endless track (42b), a chassis (42a), support rollers or other bearing means mounted therein for the endless track, and one more track drive/brake members for effecting drive and/or braking motion of the track, and wherein each track unit is arranged mobile within the associated frame. Each track unit is arranged mobile within the associated frame by a parallel linkage bar system with parallel linkage bars (53) between the chassis of the track unit and the frame of the tensioner.