FIELD: electrical engineering; submersible motors for driving oil extraction pumps. SUBSTANCE: pressurizer designed for use i hydraulic shielding systems of submersible oil-filled motor incorporating telemetering system has casing and flexible diaphragm hermetically secured between central body and head with axial holes for oil pumping and affording communication between pressurizer and motor spaces or for isolating them. Pressurizer diaphragm houses water-tight tube and cylindrical drillings are made in head, central body, and in bottom part of casing which form, together with tube, central axial duct to receive connecting leads and telemeteringsystem heat-sensor leads. EFFECT: enlarged functional capabilities of pressurizer. 2 cl, 1 dwg
