CONNECTION ADAPTER FOR ELECTRICALLY DRIVEN BOREHOLE PUMP SYSTEM Russian patent published in 2014 - IPC E21B43/00 F04D13/10 F16D1/108 

FIELD: engines and pumps.

SUBSTANCE: set of invention relates to mining and can be used in borehole electrically driven pump connection adapters. Proposed system comprises protector, motor section and seals to prevent leaks from protector and motor section during assembly. Seals interact with coupling assembly engaging protector shafts with motor section. Coupling assembly OD increases at the ledge around the coupling assembly. In compliance with one version, seal preventing the leaks from seal assembly that makes the interface around coupling assembly larger-diameter part to be removed at coupling shift so that its smaller diameter part abuts on said seal assembly. Motor section is sealed by another seal assembly including the case surrounding the motor shaft to make a circular space to be selectively filled with deal disc. Seal disc can be displaced inside said case at coupling the shafts by coupling assembly.

EFFECT: higher reliability of borehole pump linkage.

18 cl, 6 dwg