Method for Operating a Pump Assembly

Abstract

An electric motor having a stator and a rotor in which the electric motor is an axial flux motor. The stator has a multiplicity of cores which, along a circumferential direction, are disposed beside on another on a common first diameter and are in each case surrounded by one coil. The rotor has a multiplicity of magnets which, along the circumferential direction, are disposed beside one another on a common second diameter on a support. Each magnet in the circumferential direction extends across a first angular range and the magnets are disposed so as to be mutually spaced apart by a second angular range formed by the support, which support is also heatable by the stator by induction. The second angular range is at least 30% of the first angular range.

We claim: 
     
         1 . An electric motor, comprising at least one stator as well as one rotor, wherein the electric motor is an axial flux motor, and wherein the rotor and the stator are disposed beside one another along an axial direction; wherein the stator has a multiplicity of cores which along a circumferential direction are disposed beside on another on a common first diameter and are in each case surrounded by one coil; wherein the rotor has a multiplicity of magnets which along the circumferential direction are disposed beside one another on a common second diameter on a support; wherein each magnet in the circumferential direction extends across a first angular range, and wherein the magnets are disposed so as to be mutually spaced apart by a second angular range, wherein the second angular range is at least 30% of the first angular range, wherein the second angular range is formed by the support, and wherein the support is heatable by the stator by induction. 
     
     
         2 . The electric motor of  claim 1 , wherein the support contains iron or is ferritic. 
     
     
         3 . The electric motor of  claim 1 , wherein the multiplicity of magnets is embedded in a material of the support of the rotor in which the material is heatable by induction. 
     
     
         4 . The electric motor of  claim 1 , wherein the multiplicity of magnets is disposed in recesses of the support such that the magnets and the support on an end side of the rotor that faces the stator terminate so as to be flush with one another.