SUBMERGED ELECTRICALLY-DRIVEN PUMP Russian patent published in 2009 - IPC F04D13/08 F04D29/62 

FIELD: engines and pumps.

SUBSTANCE: invention is intended for pumping out contaminated waters except for household wastes. Proposed pump comprises motor 1 with magnetic core 3, rotor 2, front and rear end shields 4, 5. Motor is arranged in tight housing made from metal sheets. Pump with impeller 14 is arranged in housing 8. Motor housing and pump housing 9 are interjointed by clamp 17 furnished with O-ring 9. Pump is furnished with outer casing 20 that makes motor cooling jacket. Aforesaid end shields 4 and 5 are press-fitted on whole-drawn mandrels 38 fixed on magnetic core 3 of motor 1. Guide vanes 21 comprises vanes 46 made from sheet metal and welded to disk 45 drawn from sheet metal.

EFFECT: reduced weight, minor number of threaded joints and reduced costs.

2 cl, 2 dwg