| 摘要 |
The present invention can reduce vibration and noise, and solve a problem of a power loss or a damage by applying the tendency of enlargement and high-speed to change a structure of two points rotation support structure of a conventional shaft through a pump bush, a rotor bush, and a shaft bush and to support the shaft axially. In particular, the present invention relates to an electric water pump capable of maximizing a lubricating action to secure a long life and reliability by improving the lubricity of cooling water through a cooling water flowing groove of a sealing can, a lubrication projection of the shaft bush, and a lubrication groove and by reducing heat of a friction surface or a damage which may occur during the shaft bush supports to rotate the lower end of the shaft. |
