A gun control unit for a M134 minigun firearm including an armature and a stator comprising at least one hardware processor; and one or more software modules that are configured to, when executed by the at least one hardware processor, independently control the armature; independently control the stator.

A motor includes a stator, a rotor and a case. The rotor includes a first rotor core, a second rotor core, and a field magnet. Each of the first rotor core and the second rotor core includes a core base and a plurality of claw poles. The field magnet is located between the core bases. The case includes a cylindrical yoke housing and a lid. To balance magnetic flux from the first rotor core with magnetic flux from the second rotor core, the distance between the rotor and the stator is varied from the distance between the rotor and the yoke housing or the teeth of the stator are shaped to enable magnetic saturation.

An electric motor has a first carrier having an array of electromagnetic elements and a second carrier having electromagnetic elements defining magnetic poles. The first and second carriers each define an axis. An airgap is formed between the first and second carriers when in an operational position. An inner thrust bearing connects the first and second carriers and is arranged to allow relative rotary motion of the carriers. An outer thrust bearing connects the first and second carriers and is arranged to allow relative rotary motion of the carriers. The electromagnetic elements of each of the first and second carriers are arranged radially inward of the outer thrust bearing and radially outward of the inner thrust bearing. The inner thrust bearing and the outer thrust bearing are arranged to maintain the airgap against a magnetic attraction of the electromagnetic elements of the first and second carriers.

Pairs of unidirectionally magnetic rotor/stator assemblies are mounted for synchronous rotation and complementary, so that one creates pulsating positive current flow and the other creates pulsating negative current flow, as the rotor and stator in each assembly are rotated with respect to each other. The pulsating positive current flow and pulsating negative current flow are combined at a desired phase angle to create alternating current, without power loss due to reversal of current flow.

A permanent magnet synchronous rotating electrical machine (100) has: a rotor shaft (11) extending axially; a rotor core (12) in which flux barriers that spread toward the rotation axis center and in a circumferential direction in such a way as to form a convex curved surface and extend axially in each circumferential angle region, and the flat plate-shaped space that is located at a circumferential-direction center of the flux barriers and is thinner than radial width of the flux barriers, and includes laminated plates; a flat plate-like permanent magnet (51) provided in such a way as to occupy the flat plate-shaped space; a stator core (21) in which stator teeth (22) are formed and disposed on an outer surface of the rotor core (12) via a clearance, and protrude toward radially inner side; and multi-phase armature windings (24) of multiple poles wound around the stator teeth (22).

An electrical machine system includes a stator having a conical stator surface defining a rotary axis. A rotor is operatively connected to the stator for rotation relative thereto, wherein the rotor includes a conical rotor surface. A conical gap is defined between the conical surfaces of the stator and rotor about the rotary axis. An actuator is operatively connected to at least one of the stator and rotor for relative linear motion along the rotary axis of the stator and rotor to change the conical gap, wherein the actuator provides relative linear motion between a first position for a first conical gap width and a second position for a second conical gap width different form the first conical gap width. In both the first and second positions the full axial length of one of the rotor or stator is axially within the axial length of the other.

An electrical machine system includes a stator having a conical stator surface defining a rotary axis. A rotor is operatively connected to the stator for rotation relative thereto, wherein the rotor includes a conical rotor surface. A conical gap is defined between the conical surfaces of the stator and rotor about the rotary axis. An actuator is operatively connected to at least one of the stator and rotor for relative linear motion along the rotary axis of the stator and rotor to change the conical gap, wherein the actuator provides relative linear motion between a first position for a first conical gap width and a second position for a second conical gap width different form the first conical gap width. In both the first and second positions the full axial length of one of the rotor or stator is axially within the axial length of the other.

A rotary electrical machine rotor having claw-shaped poles. The machine comprising a plurality of interpolar magnetic assemblies having at least two magnetic assemblies comprising different magnet grades.

An alternator with a longer stationary coil support or bobbin and rotor axial and components thereof are provided.

A rotational motor that comprises a stator and a rotor and at least two magnets comprising a permanent magnet and an electromagnet, wherein one of the magnets is attached to the stator and one of the magnets is attached to the rotor. The magnets are relatively aligned such that when the electromagnet is switched off, the permanent magnet is attracted to a ferromagnetic core of the electromagnet causing the rotor to rotate relative to the stator, and when the electromagnet is switched on, the permanent magnet is repelled from the electromagnet causing the rotor to continue to rotate relative to the stator.