| 摘要 |
PROBLEM TO BE SOLVED: To provide a coolant pump in which significant cost reduction can be achieved and foreign substances such as chips can hardly accumulate within a pump casing.SOLUTION: A coolant pump 100 used to suck up coolant liquid includes single inducer impeller 2 for generating a total head of the pump arranged with a rotational center line a3 of itself in a vertical direction, inside of a pump casing 1, and the inducer impellers 2 are configured such that helical blades 12 are fixedly provided to an outer periphery of a boss portion 11. Each helical blade 12 has an exit angle set two degrees or more larger than an inlet angle. |
