[12] Patent
[11] Patent No.:GC0009547  
[45] Date of Publishing the Grant of the Patent: 31/Jan /2019                57/2019  
Number of the Decision to Grant the Patent:2019/143106
Date of the Decision to Grant the Patent:09/Jan/2019

[21] Application No.:GC 2013-25400

[22] Filing Date:18/9/2013

[30] Priority:

[33] State [32] Priority date [31] Priority No.
IT
20/9/2012
CO2012A000045

[72] Inventors:1- MASALA, Andrea ،2- CAMATTI, Massimo ،3- GIORNI, Eugenio ،4- BELLACCI, Michelangelo

[73] Owner: Nuovo Pignone Srl, Via Felice Matteucci 2, Florence 50127, Italy

[74] Agent: Abu-Gazaleh Intellectual Property L.L.C

  

 

  

[51]IPC:
Int. Cl.: F01D 25/16; F16C 32/04; H02K 7/09 (2006.01)

[56] Cited Documents:

-JP H05 196041 A (EBARA CORP) 6 August 1993
-US 2007/262668 Al (BRISSON BRUCE w [US] ET AL) 15 November 2007
-WO 2010/040535 Al (PRO DISKUS AG [CH] ; SCHOTTDORF BERND [DE] ; WEISSGERBER FRANZ [DE]) 15 April 2010
-US 2003/107283 Al (SUZUKI NATSUSHI [JP] ET AL) 12 June 2003
-US 6 247 638 Bl (RESS JR ROBERT ANTHONY [US]) 19 June 2001
 
Examiner: Eng. Mohammad W. AlHoshan

[54] MAGNETIC THRUST BEARING, TURBO MACHINE AND METHOD
[57] Abstract: A thrust bearing comprises an electromagnetic stator with a stator surface and a rotor disk with a rotor facing the stator surface. The rotor disk comprises a radially inner portion made of a first material directly and exclusively connected to a radially outer portion made of a second material. The first material is a corrosion resistant metal or metal alloy and the second material is a ferromagnetic metal or metal alloy.
No. of claims: 12     No. of figures: 8


 

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