| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a magnetic pump having no heat transmission between a motor and liquid to be pumped, troubles such as dew condensation and icing, and implementing high efficiency, long service life and maintenance free. SOLUTION: The magnetic pump comprises: a pump casing 14 including liquid to be pumped and an accommodating space A accommodating an impeller 18 and a driven magnet 24; an air-tight motor casing 44 housing a motor stator 42 and a motor rotor 40; and a driving magnet housing 62 fixed on a motor shaft 56 projecting from the motor casing 44, and holding a driving magnet 64 at a position opposite to the driven magnet 24 disposed outside the pump casing 14. An air-tight sealed space B is formed between the motor casing 14 and the pump casing 44 opposed to each other, and accommodates the driven magnet 64.</p> |
