IMMERSED DIAPHRAGM ELECTRIC PUMP Russian patent published in 1995 - IPC

FIELD: immersed diaphragm electric pump for raising stratum liquids from drills. SUBSTANCE: internal surface of protection cylindrical grid is provided with circular shoulders in places of its joint to housing and bearing ring. Cable inlet is placed in the shoulder cavity. Rows of through openings of the grids are placed between the shoulders. Raising pipe branch is provided with seal. Lid, ring and sealer have central partings, and a slot to pass the cable. The housing and grid may be displaced axially up to the stop against a blind cylinder through screw mechanism. one end of which is related to surface plate. The second end may be interact with the lid. EFFECT: increased pump reliability and durability. 2 dwg