Global Patent Index - EP 2156534 A2

EP 2156534 A2 20100224 - PERMANENTLY EXCITED ROTOR FOR MACHINE TOOLS

Title (en)

PERMANENTLY EXCITED ROTOR FOR MACHINE TOOLS

Title (de)

PERMANENT ERREGTER ROTOR FÜR ARBEITSMASCHINEN

Title (fr)

ROTOR À EXCITATION PERMANENTE POUR MACHINES DE TRAVAIL

Publication

EP 2156534 A2 20100224 (DE)

Application

EP 08758798 A 20080528

Priority

  • EP 2008004213 W 20080528
  • DE 102007028356 A 20070615

Abstract (en)

[origin: WO2008151717A2] The invention relates to a machine tool (1) that is directly or indirectly connected to a motor (2), force being transmitted from the motor (2) to the machine tool (1) by means of at least one rotor (4), especially a rotor for driving turbo engines, which is driven by magnetic or electromagnetic fields. The rotor (4) is equipped with permanent magnets (3) and is designed to be operated in a chemically aggressive environment. The rotor (4) and a shaft (6, 6.1, 6.2, 6.3) that is connected thereto are monolithically made of a high-quality stainless steel from the group comprising ferritic-austenitic duplex steels, and permanent magnets (3) which are disposed on the rotor are protected against chemical attacks.

IPC 8 full level

H02K 1/02 (2006.01); H02K 1/27 (2006.01); H02K 7/14 (2006.01)

CPC (source: EP US)

H02K 1/02 (2013.01 - EP); H02K 1/278 (2013.01 - EP US); H02K 5/128 (2013.01 - EP)

Citation (search report)

See references of WO 2008151717A2

Citation (examination)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

DE 102007028356 A1 20081218; EP 2156534 A2 20100224; WO 2008151717 A2 20081218; WO 2008151717 A3 20090305

DOCDB simple family (application)

DE 102007028356 A 20070615; EP 08758798 A 20080528; EP 2008004213 W 20080528