MAGNETIC ROTOR AND ROTARY PUMP HAVING A MAGNETIC ROTOR
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United States of America Patent
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Jan 24, 2013
app pub date -
Jul 20, 2012
filing date -
Jul 20, 2011
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Abstract
The invention relates to a magnetic rotor (1) for a rotary pump (2), wherein the rotor (1) can be driven and levitated in a magnetically contactless manner in a pump housing (4) within a stator (5) of the rotary pump (2) for conveying a fluid (3) and the rotor (1) is encapsulated by means of an outer encapsulation (6) including a fluorinated hydrocarbon. In accordance with the invention, the rotor (1) includes a permanent magnet (8) sheathed by a metal jacket (7) within the encapsulation (6), with the metal jacket (7) including at least one metal from the group of elements composed of tantalum, niobium, zirconium, titanium, hafnium, gold, platinum, palladium, osmium, iridium, ruthenium and rhodium. The invention further relates to plant components, in particular to a rotary pump (2) having a magnetic rotor (1).
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