| 摘要 |
A water pump includes an impeller (17) provided at a first end of a rotational shaft (14) supported by a body (11) via a bearing (13), a mechanical seal (18) provided between the impeller (17) and the bearing (13), a draining hole (22) introducing a water drop leaked from an impeller side via the mechanical seal (18) to a reservoir (28) provided at a bottom of the body (11) and having a side opening, a plugging member (23, 123, 223, 323) provided at the side opening of the reservoir (28) for liquid-tightly sealing the reservoir (28), and an opening portion (23a, 123a, 223a, 323a) provided at the plugging member (23, 123, 223, 323) for communicating the reservoir (28) and an atmosphere side. |
