PUMP, HEAT PUMP HOT-WATER SUPPLY DEVICE, AND METHOD OF MANUFACTURING PUMP

摘要

PROBLEM TO BE SOLVED: To provide a pump in which a rotor part and an impeller are positioned coaxially with each other when the rotor of the pump is formed by joining the rotor part and the impeller.

SOLUTION: The pump includes a molded stator and a pump section. The rotor part 60a formed on a rotor flange 69 includes an impeller installation surface 69a for setting the impeller 60b and a slit part 69b. The impeller 60b includes an impeller slit part 72a serving as a surface installed on the impeller installation surface 69a of the rotor flange 69 and a fitting part 72b which is left uncut on the outside of the impeller slit part 72a and which projects to the rotor part 60a side. When the rotor part 60a is joined to the impeller 60b, the impeller slit part 72a of the impeller 60b is installed on the impeller installation surface 69a of the rotor flange 69, and the fitting part 72b on the outside of the impeller slit part 72a is fit to the rotor part slit part 69b of the rotor part 60a.

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