OPEN ELECTRIC MACHINE FOR OPERATING IN AN AGGRESSIVE MEDIUM

摘要

An open electric machine having a stator protected from the aggressive medium by protective means including a coating in which the loops of the stator winding are embedded and constituted by a solvent-free resin containing a filler and having good heat conductivity, a bonding and heat insulating sheath on the coating and on the bore of the stator laminations and constituted by a homogeneous plastics material containing a filler and having a coefficient of thermal expansion in the neighborhood of that of the stator laminations. A fluidtight covering on the sheath and composed of a polyamide-base material radially in contact with the end walls of the machine frame.