TRANSPORT FACILITY

摘要

FIELD: transport.SUBSTANCE: vehicle comprises hull with two rows of working wells, propulsor, deckhouse and steering complex. Hollow conical screw jacket is arranged around the periphery of the body to spin there about and around its axis It is composed by curvilinear strips of various order and degree of curvature. Centres of curvature are located inside or outside jacket cross-section to make along its periphery the multistart screw surface with screw lines and helical grooves. These are inclined relative to rotational axis inside said hollow conical screw jacket. Strips feature different width increasing over jacket length from inlet to outlet. Said strips are coiled in vertical plane in lengthwise direction and flexed in screw lines across mandrel composed by paraboloid of revolution. Said jacket has outer laps as screw blades over the entire length of screw jacket.EFFECT: enhanced operating performances.14 dwg