SUBMERSIBLE CENTRIFUGAL UNIT Russian patent published in 2013 - IPC F04D29/62 F04D13/10 F04D29/46 

FIELD: oil and gas industry.

SUBSTANCE: submersible centrifugal unit has a modular design and includes a compensator, an electric motor, a seal section, a gas separator, a pump, an armoured electric cable and a bearing. Shafts of modular sections are installed on the support. The support is made in the form of a bush neck, a bearing sleeve and a spline coupling, which are interconnected with each other. Bearings are spherical and installed in the housing. Chambers of channels of bearings and oil supplying channels of the housing are of a split type.

EFFECT: improving reliability and durability of a submersible pump unit by reduction of occurring oscillations owing to changing the structure of support of the shaft with bearings.

2 dwg