Abstract: The invention concerns attachment apparatus for a stator of a rotary electric machine, said machine comprising a rotor, a stator coaxial with the rotor, an airgap between the stator and the rotor, and a casing provided with attachment points for attaching the stator;according to the invention, the attachment apparatus comprises attachment elements mounted between the attachment points and the stator;each attachment element having an anisotropic stiffness comprising a tangential component Kt for taking up in part the static forces of the machine, and a radial component Kr for relieving in part the dynamic forces of the stator relative to the casing;the resultant of the tangential components Kt taking up the static forces of the rotary electric machine with an axial displacement or a radial displacement of the stator that is less than or equal to a predetermined value that is less than the airgap; andthe resultant of the radial components Kr relieves the dynamic forces of the stator with a predetermined coeffic
Abstract: A method of manufacturing a claw-type magneto-electric rotor. The claw type rotor comprising magnetic material parts forming the poles of the rotor and amagnetic material parts separating the poles of opposite polarity confined in a hollow cylindrical casing in the shape of a body of revolution, wherein the casing is made from an amagnetic material. The method includes a step of filling the hollow cylinder with the magnetic material parts and amagnetic material parts and a step of isostatic compression of the combination of these parts and the hollow casing cylinder. Each magnetic or amagnetic material part is made from a plurality of nested, independent, matched and coaxial tube elements each having lateral edges, transverse ends and a lateral face having the exterior shape of the corresponding radial thickness of the magnetic or amagnetic material part concerned.
Abstract: A method of manufacturing a claw-type magneto-electric rotor. The claw type rotor comprising magnetic material parts forming the poles of the rotor and amagnetic material parts separating the poles of opposite polarity confined in a hollow cylindrical casing in the shape of a body of revolution, wherein the casing is made from an amagnetic material. The method includes a step of filling the hollow cylinder with the magnetic material parts and amagnetic material parts and a step of isostatic compression of the combination of these parts and the hollow casing cylinder. Each magnetic or amagnetic material part is made from a plurality of nested, independent, matched and coaxial tube elements each having lateral edges, transverse ends and a lateral face having the exterior shape of the corresponding radial thickness of the magnetic or amagnetic material part concerned.
Abstract: The invention relates to a 2N pole claw rotor comprising a first magnetic material part, comprising an axial hub having a free end, and an end provided with N axially-extending claws that are peripherally localized, uniformly distributed, and together define a bezel; a second magnetic material part of polarity opposite to the polarity of the first magnetic material part, having the same shape as the first magnetic material part, and disposed facing the first magnetic material part, each claw of the second magnetic material part being disposed between two claws of the first magnetic material part, and vice versa; non-magnetic spacers interposed between the free ends of the claws and the end walls of the bezels of the facing parts; and non-magnetic rotor-cowling means.
Type:
Grant
Filed:
January 9, 1997
Date of Patent:
July 28, 1998
Assignee:
GEC Alsthom Moteurs SA
Inventors:
Alain Gueraud, Jean-Charles Mercier, Andre Masson
Abstract: The invention relates to a magnetoelectric claw rotor of the type comprising parts made of magnetic material forming the poles of the rotor, and parts made of non-magnetic material for separating poles of opposite polarity, all confined in a common hollow cylindrical case of non-magnetic material.