| 摘要 |
A liquid-filled submersible electromotor, especially motor has in one end rotating sealing means for sealingly closing the water-filled space in the motor casing, the sealing means being adapted to automatically release over-pressure in that space and to allow passage of water from the space to the space surrounding the casing, and vice versa. At the other end the motor casing has a bearing for the motor shaft, preferably of the Michell type, wherein one sliding surface is constituted by an annular member of a non-metallic material, preferably ceramics, and the other by movable blocks, also of non-metallic material.
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