PROTECTOR FOR HYDRAULIC PROTECTION OF SUBMERSIBLE OIL-FILLED ELECTRIC ENGINE Russian patent published in 2013 - IPC F04D13/10 

FIELD: engines and pumps.

SUBSTANCE: protector for hydraulic protection of a submersible oil-filled electric motor includes a housing, a shaft with end seals arranged in the zone of nipples with axial holes and support bearings, an assembly of a bearing plate with the shaft support, which is arranged in lower part of the protector and combined with the base assembly, a head and a base. Bearings are located along the shaft in axial direction between the head and the base with formation of hydroseal chambers. In the protector head, in upper part above the protective casing of upper end seal there fixed is a water motor on the shaft. In the head there are holes interconnected with annular space and coinciding with the axis of holes of the water motor.

EFFECT: improving operating reliability of hydraulic protection of a submersible electric motor.

1 dwg