F - Mech Eng,Light,Heat,Weapons – 16 – C
Patent
F - Mech Eng,Light,Heat,Weapons
16
C
F16C 32/04 (2006.01) F16C 35/00 (2006.01) H01F 27/30 (2006.01)
Patent
CA 2682563
The invention relates to a jacketed axial magnetic bearing for a rotary machine having a rotor (6) in contact with a gaseous atmosphere that is corrosive, acid, or carrying particles, the bearing comprising a rotor armature (7) in the form of a disk secured to the rotor (6) and placed in the gaseous atmosphere, and a stator magnetic circuit (4) secured to a stationary support device (1) and placed facing the rotor armature (7), the magnetic circuit of the stator (4) comprising at least one coil (42, 43) and a ferromagnetic body (41) placed in a metallic protective enclosure (2, 3). The protective enclosure (2, 3) comprises firstly an annular support (2) of channel section with a web (20) and inner and outer flanges (21, 22) presenting a thickness of several millimeters and a length that is less than the length of the stator magnetic circuit (4), and secondly an annular jacket (3) in the form of a channel-section cover machined from a solid piece and thus without welds, the jacket having inner and outer flanges (31, 32) and a closure web (30) presenting a thickness (e0) smaller than the thicknesses (e1, e2) of the inner and outer flanges (31, 32), the free ends of the inner and outer flanges (31, 32) of the jacket (3) being welded to the free ends of the inner and outer flanges (21, 22) of the annular support (2).
Baudelocque Luc
Brunet Maurice
Moulin David
Sim & Mcburney
Societe de Mecanique Magnetique
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