| 摘要 |
<p>A pump with a canned motor drive (SPM') or a canned magnetic clutch drive has an outer drive section (3) and an inner rotating section (4, 53) magnetically coupled to it, the outer drive section and inner rotating section being hermetically separated from one another by means of a can (50). At least one part of the can (50) is of at least double-walled construction and the wall internal chamber (62) formed by the double or multiple skinned wall is intended to house a heating or cooling agent (211). In such a design the can (50) of a canned motor or a canned pot of a canned motor pump may function as the active element in heating or cooling, as required, for example by feeding heating agent or coolant into the wall inner chamber (62) of the can (50). In this way the sphere of application of the said pump is extended and, for example, even conveyed media which congeal when the pump is shut down, or media which are highly viscous at normal ambient temperature can be conveyed without any risk to the pump.
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