ROTARY PUMP WITH MAGNETIC COUPLING FOR TRANSFER OF FUSED METALS AND HOT MEDIA Russian patent published in 2013 - IPC F04D7/06 F04D29/58 F04D13/02 

FIELD: engines and pumps.

SUBSTANCE: pump comprises motor chamber accommodating part of metal shaft and drive half-coupling with set of permanent magnets engaged therewith, sealing shield to separate motor chamber from pump chamber accommodating drive half-coupling with drive shaft and impeller. Note here that said drive half-coupling is composed of toothed magnetic core made from metal related to group of ferromagnetics with high Curie temperature T_c, for example iron (T_c=769°C) while motor chamber is evacuated. Note also that vacuum clearance between drive half-coupling and sealing shield makes a heat barrier integrated in magnetic coupling. Besides, motor chamber housing also incorporates heat shield while drive shaft exploits liquid cooling system.

EFFECT: pump with heat-resistant magnetic coupling for transfer of fused metals and hot media.

15 cl, 2 dwg