UNDERWATER APPARATUS ELECTRIC DRIVE Russian patent published in 2012 - IPC B63H21/17 

FIELD: transport.

SUBSTANCE: invention relates to water transport and aims at perfecting underwater apparatus driving self-contained means and may be used as their propulsor in surface and underwater positions. Proposed drive (dwg. 1) comprises tight housing 1 accommodating power supply 2 and motor 3. The latter has two stators 5, 6 and two rotors 7, 8 fitted on aligned shafts 9, 10. Output extensions of said shafts carry counter rotation propellers 12, 13. Housing 1 accommodates also inverter 14 with solid-state modules 15 arranged on housing inner surface. Said modules 15 are arranged so that their heat conducting elastic elements 17 seat on contact sites 18 of housing 1. Terminals 19 of motor windings are connected to modules 15. Multiphase winding 21 is fitted in grooves 20 of stator 5. Permanent magnets 23 are fitted inside rotor 7, in chambers 22. Vent vanes 25, 26 are arranged on ends of rotors 7, 8. Radial holes are made in motor housing 3.

EFFECT: higher reliability, reduced noise, increased range.

3 cl, 5 dwg