PNEUMATIC SYSTEM FOR SHIP WITH AIR CAVITIES AT BOTTOM Russian patent published in 2014 - IPC B63B1/38 B63B1/00 

FIELD: transport.

SUBSTANCE: ship is equipped with movable cavity-forming elements lengthwise limiting keels of the left and right boards, lengthwise intermediate keels arranged between lengthwise limiting keels of the left and right boards located parallel with ship centreline plane to make lateral and central sections, and cavitators located at ship bottom perpendicular to ship centreline plane and composed of inclined plates. Cavity-forming elements are equipped with air drives to open to working position and to be folded. Pneumatic two-line system can feed air separately from single compressed air source to said first and second lines. First line can feed compressed air via pipes to air drives, keep up operating pressure automatically at required level, and evacuate air from air drives in atmosphere via drain line. Second circuit feeds compressed air via pipeline and bottom Kingston valves to lateral and central sections and cavitators to maintain air cavities under ship bottom. Single compressed air source ensures preset air efficiency and pressure required for making and supporting the cavities.

EFFECT: enhanced operating performances, higher safety.

3 cl, 3 dwg