MAIN DRAIN COMPLEX FOR FLOATING TRANSPORT FACILITY Russian patent published in 2005 - IPC

FIELD: main drain systems of amphibian transport facilities.

SUBSTANCE: each pumping plant of proposed complex is provided with high-capacity centrifugal pump used for removal of water from sections of hull of transport facility in an emergency and low-capacity drainage pump used for priming the centrifugal pump and removal of water from sections of hull in standard situation. Mounted in between centrifugal pump and drainage pump is water intake with normally-closed valve gear. Centrifugal pump and drainage pump are interconnected through pipe line and water intake forming single main drain line together with suction branch pipe of centrifugal pump and drainage pipe lines located behind centrifugal pump. Working chambers of centrifugal pump are used as members for drainage pump. Drainage pump is provided with electric motor and centrifugal pump is provided with hydraulic motor having axial relief unit for drive shaft.

EFFECT: reduction of dimensions; enhanced economical efficiency; increased service life.

7 cl, 5 dwg