ENGINE-PROPULSION MODULE OF RING STRUCTURE Russian patent published in 2018 - IPC B63G8/00 B63H5/07 

FIELD: construction.

SUBSTANCE: invention relates to the field of underwater shipbuilding, in particular to propulsion electric power plants with propulsion motors, and can be used in shipbuilding. Engine-propulsion module of the ring structure contains a fairing, which is an element of the light hull forming the aft end of the apparatus, a multi-blade propeller with a large-diameter hub, a propulsion motor, a thrust bearing and thrust bearings. Device is made in the form of a module located outside the sturdy hull of the aft end of the underwater vehicle, a second propeller motor and a propeller are introduced into the construction of the aft end – the engine-propulsion module of the reversed ring structure. As a rowing electric motor, two ring synchronous electric machines of the reversed type with excitation from permanent magnets are used, where the rotor of each of the rowing ring synchronous electric machines is structurally integrated with a multi-bladed propeller with a large diameter hub. Propellers are movably connected to the supporting structure and the stator through the support and thrust bearings and rotate in mutually opposite directions, the blades of each of the propellers are oppositely directed.

EFFECT: reduction in the level of the submarine noise of the apparatus is achieved, along with increased propulsive efficiency and the possibility of placing the towed hydroacoustic means of monitoring and monitoring underwater conditions.

1 cl, 3 dwg