A coil includes first and second coil elements both of which are formed by feeding one piece of a rectangular wire rod by a predetermined amount and winding rectangularly in an edgewise manner using winding heads, the first and second coil elements being wound in opposite directions from each other. A winding terminating end point of the first coil element is bent approximately 90 degrees in a direction opposite to a winding direction of the first coil element, and is connected to a winding terminating end point of the second coil element in a same flat plane. The second coil element includes an offset portion of the rectangular wire rod that is offset in a plan view from a side of the second coil element.

A laminated substrate embedded type inductor includes a laminated resin substrate in which a pair of first resin substrates are laminated, a sheet-shaped magnetic core placed in the laminated resin substrate, via holes provided so as to pass through the laminated resin substrate, and a coil formed via the via holes. The laminated resin substrate contains an adhesive component, wherein the sheet-shaped magnetic core is a molded body obtained by forming a soft magnetic flat metal powder into a flat plate, the soft magnetic flat metal powder is oriented in a plane of the flat plate, and a generated magnetic flux of the coil circulates in the plane of the flat plate, and wherein the magnetic core is integrated with the laminated resin substrate so that the adhesive component is impregnated in pores of the magnetic core.

A viscous clutch includes a shaft, a rotor disk, a housing having a base, a working chamber, a reservoir fluidically connected to the working chamber, a valve, an electromagnetic coil, and a flux guide that passes through the housing. The rotor disk includes a conductive portion made of a magnetic flux conductive material that forms a hub of the rotor disk that contacts the shaft and another portion. The base includes a hub with an axially-extending ring, and an armature of the valve is located radially outward of the axially-extending ring. The electromagnetic coil is located at an opposite side of the rotor disk from the reservoir. A magnetic flux circuit extends from the electromagnetic coil to the flux guide, then to the armature of the valve, then to the conductive portion of the rotor disk, then to the shaft, and then back to the electromagnetic coil.

Embodiments involve rotors for axial flux induction rotating electric machines that use a soft magnetic composite for the rotor core. A first embodiment is directed to a rotor for a rotating electrical machine that transmits magnetic flux parallel to a shaft of the rotor. The rotor includes a rotor winding and a plurality of cores. The rotor winding consists of a solid piece of conductive material that comprises a plurality of cavities. Each core is placed in a respective cavity and comprises a highly resistive isotropic ferromagnetic powder.

Embodiments involve rotors for axial flux induction rotating electric machines that use a soft magnetic composite for the rotor core. A first embodiment is directed to a rotor for a rotating electrical machine that transmits magnetic flux parallel to a shaft of the rotor. The rotor includes a rotor winding and a plurality of cores. The rotor winding consists of a solid piece of conductive material that comprises a plurality of cavities. Each core is placed in a respective cavity and comprises a highly resistive isotropic ferromagnetic powder.

An electromagnetic device includes a jig and multiple wires. The jig includes a center member and coil-separating blocks. The coil-separating blocks protrude from the center member and are separated from each other to provide a coil channels. Each of the wires is wrapped on the jig, around the center member, and in one of the coil channels to form one of a multiple coils. Each of the coils is configured to connect to an electromagnetic navigation system and generate respective electromagnetic fields to be emitted relative to a subject.

Embodiments involve rotors for axial flux induction rotating electric machines that use a soft magnetic composite for the rotor core. A first embodiment is directed to a rotor for a rotating electrical machine that transmits magnetic flux parallel to a shaft of the rotor. The rotor includes a rotor winding and a plurality of cores. The rotor winding consists of a solid piece of conductive material that comprises a plurality of cavities. Each core is placed in a respective cavity and comprises a highly resistive isotropic ferromagnetic powder.

A current transformer includes first and second bobbins, and a secondary winding. The first bobbin includes a first tube defining a first longitudinal axis. First and second flanges are disposed on first and second ends of the first tube. The first tube, the first and second flanges collectively define a first slit along the first longitudinal axis. The first slit allows receipt of a primary conductor into the first tube. The second bobbin includes a second tube rotatably received about the first tube. The second tube defines a second slit along the second longitudinal axis. The second slit allows receipt of the primary conductor into the first and second tubes. The secondary winding is wound about the first bobbin and extends along the first longitudinal axis, passing through the first tube and over the first and second flanges. The second tube rotates about the second longitudinal axis relative to the first tube.

Embodiments involve rotors for axial flux induction rotating electric machines that use a soft magnetic composite for the rotor core. A first embodiment is directed to a rotor for a rotating electrical machine that transmits magnetic flux parallel to a shaft of the rotor. The rotor includes a rotor winding and a plurality of cores. The rotor winding consists of a solid piece of conductive material that comprises a plurality of cavities. Each core is placed in a respective cavity and comprises a highly resistive isotropic ferromagnetic powder.

A method of coiling a superconducting cable, where the superconducting cable is comprised of a plurality of stacked superconducting tapes, where the superconducting cable has a clocking feature that identifies an orientation of the superconducting tapes, the method comprising the step of orienting coils of the superconducting cable, such that a magnetic field from surrounding coils impinge upon a given coil at a desired angle, based upon an orientation of the clocking feature.