CRAFT THRUSTER Russian patent published in 2002 - IPC

FIELD: shipbuilding, small-sized craft for shallow water as full-turn main propulsor and active control unit. thruster has main and additional wheels of opposite rotation which are mounted in circular nozzle with swivel bent water-discharge branch pipe. Nozzle is located coaxially in circular body of thruster forming circular water supply passage together with it. Stator and rotor of electric drive of additional wheel are mounted in circular nozzle. EFFECT: increased thrust; enhanced operational stability of thruster at small immersion and in shallow water. 1 dwg