UNDERWATER VEHICLE BUOYANCY CHANGING SYSTEM Russian patent published in 2016 - IPC B63G8/14 

FIELD: shipbuilding; data processing.

SUBSTANCE: invention relates to underwater vehicles buoyancy control moving in depth, and, in particular, autonomous underwater vehicles. Underwater vehicle buoyancy changing system comprises vessel with working medium, receiver, pump station, buoyancy changing system control device, and used working medium is liquid. System includes hydropneumatic accumulator and four solenoid-operated hydraulic valves, one of which is included into main line, which connects vessel with working medium to receiver. Second is included into main line, which connects pump station output to receiver. Third is included into main line, which connects the of the pump station output to hydropneumatic accumulator. Fourth is included into main line, which connects hydropneumatic accumulator to receiver. All solenoid-operated hydraulic valves and pumping station control inputs are connected to corresponding outputs of buoyancy control device electronic circuit.

EFFECT: enabling higher efficiency of underwater vehicle buoyancy changing system, increased duration of its autonomous operation and possibility of its operation in whole range of submersion depths, from zero to maximum.

1 cl, 1 dwg