COMPENSATOR FOR HYDRAULIC PROTECTION OF SUBMERSIBLE OIL-FILLED ELECTRIC MOTOR Russian patent published in 2017 - IPC H02K5/12 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, to devices for hydraulic protection of submersible oil-filled electric motors of pump units used in oil industry for lifting formation fluid from wells. Compensator for the hydraulic protection comprises a body, a head, a support with tightly installed on it diaphragm and a base. Compensator is placed above the electric motor and has a central channel, through which three isolated current conducting wires are extended fixed in blocks of socket tips arranged in the head and in the base. Above the diaphragm there is an additional nipple, in which there is a check valve for pressure drop. Base and the head are made with the possibility of the wafer connection.

EFFECT: technical result is improvement of reliability and efficiency of operation and service life due to preventing the effect of hydraulic shock.

1 cl, 2 dwg