초록

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Abstract ▼ AI-Helper

Canned type household circulating pump in the country almost depends on the act of imports, however it has disadvantage of low efficiency because an airgap of between rotor and stator is large and when the boiler is not used in a period of summer, a can and a rotor become adhered each other. Accordi...

Canned type household circulating pump in the country almost depends on the act of imports, however it has disadvantage of low efficiency because an airgap of between rotor and stator is large and when the boiler is not used in a period of summer, a can and a rotor become adhered each other. Accordingly the pump is impossible to drive the initial state, and a lifetime of the pump gets shortening. To overcome these defects a electronic circulating pump by axial air-gap type brushless motor which is completely depart from the general idea for the conventional pump is developed. This paper is verified through experiments that the developed pump has good performance for reduction of size and noise, reo trenchment of cost, and improvement of efficiency in comparison with the conventional pump.