COJINETE MAGNETICO

LA INVENCION SE REFIERE A UN COJINETE MAGNETICO PARA APOYAR SIN CONTACTO UN CUERPO MOVIL, PREFERENTEMENTE ROTATORIO, DENOMINADO EN ADELANTE ROTOR, CON RESPECTO A UNA PIEZA FIJA DENOMINADA EN LO SUCESIVO ESTATOR, CON UN ENTREHIERRO COMO MINIMO ENTRE EL ROTOR Y EL ESTATOR, EN EL QUE SE HALLAN FRENTE A FRENTE, A ESCASA DISTANCIA, ZONAS MAGNETICAS DEL ROTOR Y DEL ESTATOR, DENOMINADAS IMANES DEL ROTOR Y DEL ESTATOR, RESPECTIVAMENTE. EL IMAN DEL ESTATOR PUEDE OSCILAR LIBREMENTE, BASICAMENTE EN UN PLANO PARALELO A LAS SUPERFICIES MAGNETICAS QUE SE HALLAN FRENTE A FRENTE EN LA RENDIJA ENTRE EL IMAN DEL ROTOR Y DEL ESTATOR. ENTRE EL ESTATOR Y EL IMAN DEL ESTATOR ESTA MONTADO UN DISPOSITIVO DE FRICCION MECANICA PARA AMORTIGUAR EL MOVIMIENTO OSCILANTE DEL IMAN DEL ESTATOR. PCT No. PCT/DE96/02229 Sec. 371 Date May 11, 1998 Sec. 102(e) Date May 11, 1998 PCT Filed Nov. 19, 1996 PCT Pub. No. WO97/19273 PCT Pub. Date May 29, 1997A magnetic bearing for contactless support of a rotor in relation to a stator, with at least one bearing gap between rotor and stator, in which magnetic zones of rotor and stator, appropriately designated rotor magnet and stator magnet, respectively, are disposed facing each other a short distance apart. The stator magnet is fixed to the stator in such a way that it can vibrate freely in substantially one plane, which is aligned parallel to the magnet faces of the rotor and stator magnets facing each other in the bearing gap. In this arrangement, a mechanical friction device is disposed between the stator and stator magnet to damp the vibrational movement of the stator magnet.