| 摘要 |
A magnetic drive centrifugal pump with a pump chamber (7) containing a turbine (63) rotated by means of a magnetic coupling with a drive shaft (39) located outside the chamber (7). A magnetic flux-permeable confinement casing (25) inserted between the turbine (63) and the drive shaft (39) has a convex portion facing the chamber (7), where it is surrounded by a skirt (64) of the turbine (63), and a concave portion facing away from the chamber (7) for housing the drive shaft (39). The magnetic coupling means (47, 72) are supported by the skirt (64) and the drive shaft (39) respectively. Said confinement casing (25) operates in favourable conditions such that it may be made of a ceramic material and act to guide the turbine (63) during rotation and stop said turbine (63) during translation.
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