Electrical machine
AssigneeAgence Nationale de Valorisation de la Recherche (ANVAR)
InventorMichel Kant
Life of this patent
Estimating the term…
Abstract
An electrical machine having an armature capable of both rotational movement and translational movement and which can be driven by alternating current or by stepwise control pulses. The coil of the machine is divided into two half-coils which are electrically separated and which each act on a separate group of pole teeth. The armature likewise has two groups of pole teeth, each of which cooperates with a group of teeth of the coil. The teeth are symmetrical with respect to the median plane of the machine, and the coil teeth lie at a different angle with respect to that median plane than do the armature teeth. The two half-coils are separately energized to produce moving poles in space.
Claims37
An alternating current electrical machine having a movable armature capable of executing movements of rotation and of translation, comprising:
- a first body member;
- two electrically separated coil windings positioned on said first body member;
- two groups of teeth disposed on the said first body member;
- a driven armature body member;
- two groups of teeth disposed on said driven armature body member;
- and means for providing alternating electrical current to said coil windings;
- each of said groups of teeth of said first body member being substantially symmetrical with respect to the median plane of the machine, each of said groups of teeth of said driven armature member being substantially symmetrical with respect to said median plane of said machine and corresponding with one of said groups of teeth on said first body member, the teeth of each of said two groups of teeth of said first body member being positioned at a first angle with respect to said median plane, and the teeth of each of said two groups of teeth of said driven armature body member being positioned at a second angle, different from said first angle, with respect to said median plane.
An alternating current electrical machine having a movable armature capable of executing movements of rotation and of translation, comprising:
- a first body member;
- two electrically separated coil windings positioned on said first body member;
- two groups of teeth disposed on the said first body member;
- a driven armature body member;
- two groups of teeth disposed on said driven armature body member;
- and means for providing alternating electrical current to said coil windings;
- each group of teeth on said driven armature body member corresponding with one of said groups of teeth on said first body member;
- the number of teeth of each of said two groups of teeth of said driven armature body member being equal to the number of poles of the corresponding coil winding.
An alternating current electrical machine having a movable armature capable of executing movements of rotation and of translation, comprising:
- a first body member;
- two electrically separated coil windings positioned on said first body member;
- two groups of teeth disposed on the said first body member;
- a driven armature body member;
- two groups of teeth disposed on said driven armature body member;
- and means for providing alternating electrical current to said coil windings;
- each group of teeth on said driven armature body member corresponding with one of said groups of teeth on said first body member;
- the teeth of said first body member having a uniform tooth pitch and a uniform cross-section, and the teeth of the driven armature body member having a uniform tooth pitch and a uniform cross-section.
An alternating current electrical machine having a movable armature capable of executing movements of rotation and of translation comprising:
- a movable armature divided into two half-armatures;
- a fixed coil assembly divided into two half-coil assemblies;
- two groups of teeth on said movable armature, one group of teeth associated with each half-armature;
- two groups of teeth on said fixed coil assembly, one group of teeth associated with half-coil assembly;
- two independent electrical windings on said coil assembly, one winding associated with each half-coil assembly;
- and means for energizing said two electrical windings with alternating current;
- said groups of teeth of said half-coil assemblies being substantially symmetrical with respect to the medium plane of the machine, said groups of teeth of said half-armature being substantially symmetrical with respect to said medium plane of said machine, the teeth of each of said two groups of teeth of said half-coil assemblies being positioned at a first angle with respect to said medium plane, and the teeth of each of said two groups of teeth of said half-armatures being positioned at a second angle, different from said first angle, with respect to said median plane.
An alternating current electrical machine having a movable armature capable of executing movements of rotation and of translation comprising:
- a movable armature divided into two half-armatures;
- a fixed coil assembly divided into two half-coil assemblies;
- two groups of teeth on said movable armature, one group of teeth associated with each half-armature;
- two groups of teeth on said fixed coil assembly, one group of teeth associated with each half-coil assembly;
- two independent electrical windings on said coil assembly, one winding associated with each half-coil assembly;
- and means for energizing said two electrical windings with alternating current;
- the number of teeth of each of said two groups of teeth of said armature being equal to the number of poles of the corresponding half-coil assembly.
An alternating current electrical machine having a movable armature capable of executing movements of rotation and of translation comprising:
- a movable armature divided into two half-armatures;
- a fixed coil assembly divided into two half-coil assemblies;
- two groups of teeth on said movable armature, one group of teeth associated with each half-armature;
- two groups of teeth on said fixed coil assembly, one group of teeth associated with each half-coil assembly;
- two independent electrical windings on said coil assembly, one winding associated with each half-coil assembly;
- and means for energizing said two electrical windings with alternating current;
- the teeth of said half-coil assemblies having a uniform tooth pitch and a uniform cross-section, and the teeth of said movable armature having a uniform tooth pitch and a uniform cross-section.
An alternating current electrical machine having a movable armature capable of executing movements of rotation and of translation, comprising:
- a first body member;
- two electrically separated coil windings positioned on said first body member;
- two groups of teeth disposed on the said first body member;
- a driven armature body member;
- two groups of teeth disposed on said driven armature body member;
- and means for providing alternating electrical current to said coil windings;
- each group of teeth on said driven armature body member corresponding with one of said groups of teeth on said first body member, the two coil windings being positioned on said first body member in axially aligned, end-to-end relationship, the two groups of teeth on said first body member being in axially aligned, end-to-end relationship, and the two groups of teeth on said driven armature body member being in axially aligned, end-to-end relationship.
Dependencies are inferred from the claim text.