公开(公告)号：CA2624347A1

公开(公告)日：2008-09-08

申请号：CA2624347

申请日：2008-03-06

Applicant: GEN ELECTRIC

Inventor： EHTESHAMI MOHAMMAD ,  BRISSON BRUCE WILLIAM ,  ALI MOHAMED AHMED ,  VAN DAM JEREMY DANIEL ,  THODLA RAMGOPAL ,  IRWIN PATRICIA CHAPMAN ,  GERSTLER WILLIAM DWIGHT ,  GIORNI EUGENIO ,  GADANGI RAVINDRA ,  MERFELD GLEN DAVID ,  WEEBER KONRAD ROMAN

IPC: H02K5/10 ,  C22C19/00 ,  C22C38/18 ,  C23F15/00 ,  F16C32/04 ,  H02K1/02 ,  H02K1/06 ,  H02K7/09

Abstract: Rotor and stator assemblies that utilize magnetic bearings for supporting th e rotor shaft during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator assemblies include NACE compliant magnetic bearing arrangements for sour gas applications. In one embodiment, a rotor shaft assembly (100) for a magnetic bearing arrangement comprises a rotor shaft (102) forme d of a ferromagnetic material comprising a plurality of rotor laminations (104) disposed on the rotor shaft (102); and a barrier layer (106) formed on selected exposed surfaces of the rotor shaft 102, wherein the barrier layer (106) is effective to resist corrosion relative to the surface without the barrier layer (106).

公开(公告)号：CA2624342A1

公开(公告)日：2008-09-08

申请号：CA2624342

申请日：2008-03-06

Applicant: GEN ELECTRIC

Inventor： VAN DAM JEREMY DANIEL ,  THODLA RAMGOPAL ,  WEEBER KONRAD ROMAN ,  GADANGI RAVINDRA ,  EHTESHAMI MOHAMMAD ,  ALI MOHAMED AHMED

IPC: H02K5/10 ,  F16C32/04 ,  H02K1/02 ,  H02K15/02 ,  H02K15/14

Abstract: Rotor and stator assemblies that utilize magnetic bearings for supporting th e rotor shaft during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator assemblies include NACE compliant magnetic bearing arrangements for sour gas applications. One embodiment includes an encapsulated stator assembly (60) that comprises a stator sleeve (154) formed of a magnet ic material, a sleeve extender (152) coaxial to the stator sleeve (154) formed of a non--magnetic material fixedly attached to each end of the stator sleeve (154), wherein a point of attachment is heat treated, and a wall (70) formed of the non- magnetic material fixedly attached to the sleeve extender (152) configured to hermetically house a stator and form the encapsulated stator assembly (60).

公开(公告)号：CA2624342C

公开(公告)日：2016-05-03

申请号：CA2624342

申请日：2008-03-06

Applicant: GEN ELECTRIC

Inventor： WEEBER KONRAD ROMAN ,  ALI MOHAMED AHMED ,  EHTESHAMI MOHAMMAD ,  GADANGI RAVINDRA ,  THODLA RAMGOPAL ,  VAN DAM JEREMY DANIEL

IPC: H02K5/10 ,  F16C32/04 ,  H02K1/02 ,  H02K15/02 ,  H02K15/14

Abstract: Rotor and stator assemblies that utilize magnetic bearings for supporting the rotor shaft during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator assemblies include NACE compliant magnetic bearing arrangements for sour gas applications. One embodiment includes an encapsulated stator assembly (60) that comprises a stator sleeve (154) formed of a magnetic material, a sleeve extender (152) coaxial to the stator sleeve (154) formed of a non--magnetic material fixedly attached to each end of the stator sleeve (154), wherein a point of attachment is heat treated, and a wall (70) formed of the non- magnetic material fixedly attached to the sleeve extender (152) configured to hermetically house a stator and form the encapsulated stator assembly (60).

公开(公告)号：CA2624205A1

公开(公告)日：2008-09-08

申请号：CA2624205

申请日：2008-03-06

Applicant: GEN ELECTRIC

Inventor： THODLA RAMGOPAL ,  KOTHNUR VASANTH SRINIVASA ,  BRISSON BRUCE WILLIAM ,  WEEBER KONRAD ROMAN ,  GERSTLER WILLIAM DWIGHT ,  ALI MOHAMED AHMED ,  EHTESHAMI MOHAMMAD ,  GHASRIPOOR FARSHAD ,  VAN DAM JEREMY DANIEL ,  IRWIN PATRICIA CHAPMAN

IPC: H02K5/10 ,  F16C32/04 ,  H02K1/02 ,  H02K1/06 ,  H02K3/28 ,  H02K7/08

Abstract: Rotor and stator assemblies that utilize magnetic bearings for supporting th e rotor shaft during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator assemblies include NACE compliant magnetic bearing arrangements for sour gas applications. One embodiment includes the use of barrier layers (106) disposed on selected exposed surfaces of the rotor shaft assemb ly (100) and/or stator assembly (60). Also disclosed are processes for forming encapsulated stators (60) that exhibit improved corrosion resistance, as well as corrosio n resistant materials for backup bearing races (206) and (208) and landing sleeves (108) .