Abstract: A rotary impeller pump having a permanent magnetic drive is disclosed. An impeller disposed on a rotating shaft which is supported by a bearing assembly within a housing assembly. The bearing assembly is supported by a fixed ring assembly having a channel disposed therethrough, with one open end of the channel terminating above and adjacent the bearing assembly. A scoop wheel is disposed to rotate with the impeller and shaft. The scoop wheel raises fluid from a location below the bearing assembly to a location above the bearing assembly and adjacent a second open end of the channel. During normal operation, the housing assembly is substantially filled with the fluid medium to be pumped, and the fluid medium provides lubrication and cooling for the bearing assembly.

Abstract: A magnetic pump drive comprises a double-walled isolating shell having an inner shell and an outer shell. The inner shell and the outer shell are in contact at least along a cylindrical section of both shells. In the contact area, a channel system is incorporated between the shells by means of which channels the intactness of both shells may be checked. Channels of the channel system have the shape of a screw-channel. The magnetic pump drive so constructed closely approximates the characteristics of one constructed with a unitary thick-walled isolation shell.

Abstract: A magnetic pump drive comprises an isolating shell which is structured in the form of a stepped cylinder having at least one step for creating at least two cylindrical sections of different diameters. The efficiency of the power transmission of a driver carrying permanent magnets through the isolating shell onto a rotor also carrying permanent magnets is maintained in comparison with the efficiency of known devices, but the strength and form stability of the isolating shell is drastically improved. The strength against high system pressures is based on the steps which may comprise slipped-over rings or comprise integral reinforcement rings which act like barrel hoops.

Abstract: The invention relates to a unit and a plant with such a unit as part thereof, based on the use of eddy currents for turning mechanical energy into heat energy for heating a fluid. The unit has a driver with at least one permanent magnet and is mechanically driven and takes effect on a rotor placed on the other side of a separating wall. The rotor is fitted with at least one permanent magnet and is turned by the magnetic attraction. The magnetic field, turning in relation to the separating wall, is at the same time responsible for causing eddy currents in the wall and for this reason for the production of heat which is given up to the fluid. In a preferred form of the invention, the rotor side of the unit is completely encapsuled and only one side of the separating wall is acted upon by the fluid so that even fluids that are strong or unstable chemicals may be heated.

Abstract: Disclosed is a permanent magnet pump in which the pump impeller and the interior rotor of a permanent magnet driving means receives drive torque transmitted in synchronism by an exterior rotor. The exterior rotor is positioned, axially in one form and radially in another form, opposite the interior rotor with an air gap defined between them. Thin, plate-like permanent magnets carried by the rotors face each other across the air gap. The pump impeller shaft and the interior rotor are housed and supported in a common space which is sealed from the exterior by a partition of non-magnetizable material extending through the air gap.