| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump generally miniaturizable and prevented from being damaged due to vibration. SOLUTION: In this pump 11, a suction side chamber and a discharge side chamber are formed in a casing 12, and a shaft-through hole through which a spindle 17 extends is formed in the casing 12. A shaft seal part for sealing between the spindle 17 and the casing 12 is provided to the shaft-through hole. A water-sealing passage 38 for sealing the shaft seal part by supplying the water in the discharge side chamber to the shaft seal part is formed in the casing 12. COPYRIGHT: (C)2010,JPO&INPIT |
