ELECTRIC MOTOR BOAT WITH COOLING BY OUTBOARD WATER Russian patent published in 2009 - IPC B63B35/74 B63H21/17 H01M10/50 

FIELD: transport.

SUBSTANCE: proposed boat has flow passage passing through the boar hull. The latter accommodates motor and storage battery, motor control units and propeller screw arranged at least partially, in aforesaid flow passage. Note here that the storage battery are arranged in waterproof casing to be in heat conducting contact with the casing in certain sections. Aforesaid motor represents an inner-rotor motor. Stator is in heat conducting contact, via heat conducting assembly, with the motor receiving housing. Note here that aforesaid receiving housing, partially coupled with heat conducting assembly, consists of heat conducting material and is partially located in aforesaid flow passage.

EFFECT: higher efficiency.

19 cl, 2 dwg