WATER PROTECTION DEVICE FOR SUBMERSIBLE MOTOR Russian patent published in 2023 - IPC F04D13/10 F04D29/04 

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in waterproof devices for submersible electric motors. The device contains an outer housing, a shaft for transmitting torque, a support and a bearing unit with two parts. The design of one part of the bearing assembly uses two radial-axial bearings installed in a support. The mating part of the bearing assembly uses a bidirectional axial bearing mounted on the shaft. The radial-axial bearings are arranged with their end working surfaces facing each other with the ability to limit the movement of the bidirectional axial bearing. A device is installed on the shaft for forced injection of liquid into the central channel of the shaft, which is made with holes for liquid circulation.

EFFECT: invention is aimed at simplifying the design of the bearing assembly of a waterproof device and simplifying manufacturing.

5 cl, 1 dwg