Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2005-08-09
2005-08-09
Nguyen, Tran (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S180000
Reexamination Certificate
active
06927517
ABSTRACT:
The rotary machine comprises a rotary shaft (2) supported by first and second radial magnetic bearings (5, 6) that are electrically controlled by a control device (13), said rotary shaft being fitted with an axial abutment device (100) comprising a rotor formed by a disk (101) secured to the rotary shaft (2) and interposed between first and second stators (102, 104) formed annularly around the rotary shaft and each including at least one annular coil (103; 105) controlled electrically by a system for servo-controlling the axial position of the rotary shaft. The stator (104) of the axial abutment device (100) further comprises a secondary induction circuit (106), and the disk (101) secured to the rotary shaft comprises a primary induction circuit (107) so that during rotation of the shaft, electricity is excited in the secondary induction circuit in order to supply energy to the radial magnetic bearings.
REFERENCES:
patent: 5310311 (1994-05-01), Andres et al.
patent: 5525848 (1996-06-01), Pinkerton et al.
patent: 5572079 (1996-11-01), Pinkerton
patent: 5703423 (1997-12-01), Fukao et al.
patent: 6262506 (2001-07-01), Shah et al.
patent: 2002/0011754 (2002-01-01), Shinozaki
patent: PJ-56126241 (1981-08-01), None
Brunet Maurice
Schroeder Ulrich
Tremaudant Yann
McDermott Will & Emery LLP
Nguyen Tran
Societe de Mecanique Magnetique
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