Hybrid stator and a two-axis induction electric motor constructed therewith
AssigneeGradient
InventorsAlain F. Virolleau, Michel Kant, Pierre H. Burnier
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Abstract
A tubular stator capable of creating a magnetic field having both linear and rotary components comprises a tubular magnetic frame formed from longitudinal magnetic elements which are angularly spaced. The magnetic elements have teeth which extend radially inwardly. Circular induction coils are disposed between the teeth and undulating coils are disposed longitudinally between the magnetic elements. A magnetic sleeve surrounds the magnetic frame. An electric motor comprises a cylindrical rotor mounted within the tubular stator so as to be rotatable and translatable.
Claims11
A tubular stator capable of creating a magnetic field having a linear component and a rotary component, comprising:
- a tubular magnetic frame divided into longitudinal magnetic elements spaced angularly apart at least peripherally and having a comb-like radial profile whose teeth are directed radially towards the centre,
- a tubular winding having circular induction coils which are disposed between the teeth of the longitudinal magnetic elements,
- undulating coil bunches disposed longitudinally between the longitudinal magnetic elements and surrounding the circular induction coils, and
- a magnetic sleeve surrounding the magnetic frame.
An electric motor having both rotary and linear movement comprising a cylindrical rotor freely slidable in the centre of a tubular inductor, the said tubular inductor comprising:
- a tubular magnetic frame divided into longitudinal magnetic elements spaced angularly apart at least peripherally and having a comb-like radial profile whose teeth are directed radially towards the centre,
- a tubular winding having circular induction coils which are disposed between the teeth of the longitudinal magnetic elements,
- undulating coil bunches disposed longitudinally between the longitudinal magnetic elements and surrounding the circular induction coils, and
- a magnetic sleeve surrounding the magnetic frame.
Dependencies are inferred from the claim text.