AXIAL SUPPORT FOR SUBMERSIBLE SCREW-TYPE PUMPS Russian patent published in 2009 - IPC F04C2/107 F04C15/00 F16C17/26 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used in production of screw-type submersible pumps to lift brine water from oil wells. Axial support for submersible screw-type pumps comprises housing and shaft with bearing elements, the said shaft being arranged inside sealed hydraulic chamber filled with working fluid. Proposed support is furnished with bearings fitted on the shaft and overrunning coupling clutch to prevent shaft reverse rotation. Support elements representing plain bearings, each representing a cylinder and piston- thrust bearing that doubles as plain bearing for thrust bearing, both making a hydraulic chamber. All hydraulic chambers are integrated, via channels arranged along outer generating surface of the cylinders, into tight hydraulic system filled with working fluid. Thrust bearings and housing have channels designed to withdraw generated heat from support elements by pumped-over fluid.

EFFECT: uniform load distribution, easier fabrication and assembly.

1 dwg