HEAT EXCHANGER OF A SUBMERSIBLE OIL-FILLED MOTOR Russian patent published in 2016 - IPC H02K5/132 F04D13/08 

FIELD: machine building.

SUBSTANCE: invention relates to electrical engineering and can be used in oil industry and in submersible oil-filled drive motors for electric centrifugal pumps. Heat exchanger comprises upper nipple with central and concentrically arranged channels and lower nipple. Nipples are tightly connected by tube with radial holes in lower part. Housing is tightly installed between nipples, made assembled from upper and lower sleeves with radial holes for sealing compound filling into them. Heat exchange jacket covers tube and has branches equidistant from each other in radial direction, not extending beyond upper and lower nipples radius, providing maximum surface area. Sleeves and heat exchange jacket are interconnected by sealing composition.

EFFECT: technical result consists in improvement of manufacture ability and efficiency of operation and cathode protection of submersible equipment.

1 cl, 3 dwg