Abstract: A transverse flux electrical machine comprising a rotor portion and a stator portion is presented, the stator portion comprising a plurality of cores for use in conjunction with the rotor, each of the plurality of cores comprising a plurality of ferromagnetic sheet material layers substantially bent in a “U” configuration and stacked one on top of the other, a surface of each sheet material layer being substantially parallel with a core axis of the “U” configuration for reducing eddy currents therein and a pair of legs including, respectively, a reduction portion along the legs, toward a pair of poles thereof.

Abstract: A rotatable transverse flux electrical machine (TFEM) comprising a stator portion and a rotor portion operatively disposed inside the stator portion is described therein, the rotor portion comprising a plurality of magnets and concentrators alternatively affixed in a cylindrical arrangement to a non-magnetic magnets-and-concentrators supporting frame, the non-magnetic magnets-and-concentrators supporting frame being operatively secured to an axial shaft concentrically aligned with a rotational axis of the rotor portion.

Abstract: The invention concerns a rotatable transverse flux electrical machine (TFEM) comprising a stator portion; and a rotor portion rotatably located in respect with the stator portion, the rotor portion including an alternate sequence of magnets and concentrators radially disposed about a rotation axis thereof; the stator portion including at least one phase, the at least one phase including a plurality of cores cooperating with a coil disposed about the rotation axis, each core including a skewed pair of poles to progressively electromagnetically engage an electromagnetic field of respective cooperating concentrators. The invention is also concerned with a plurality of elements located in desired positions in the TFEM and also with a linear TFEM.

Abstract: The invention concerns a windmill including a rotatable transverse flux electrical machine (TFEM) comprising a stator portion; and a rotor portion rotatably located in respect with the stator portion, the rotor portion including an alternate sequence of magnets and concentrators radially disposed about a rotation axis thereof; the stator portion including at least one phase, the at least one phase including a plurality of cores cooperating with a coil disposed about the rotation axis, each core including a skewed pair of poles to progressively electromagnetically engage an electromagnetic field of respective cooperating concentrators. The invention is also concerned with a plurality of elements located in desired positions in the TFEM.

Abstract: A modular stator adapted to be used in a transverse flux electrical machine (TFEM) includes a plurality of phase modules comprising respective halves sized and designed to receive therein a plurality of cores about a rotational axis. The phase modules are adapted to be assembled together to produce a multi-phase stator and disassembled to replace or maintain a phase module. The phase modules are configured to be angularly shifted from one another to produce a multi-phase TFEM. A TFEM phase assembly and a kit of phases components sized and designed to assemble a multi-phase stator are also encompassed by the present application.

Abstract: A stator adapted to be used in a transverse flux electrical machine (TFEM) includes a plurality of phases comprising respective halves sized and designed to receive therein a plurality of cores about a rotational axis. The halves can be separated in angular portions sized and designed to be assembled together and further locate cores therein in respective predetermined positions. A TFEM phase assembly and a kit of phases components sized and designed to assemble a stator are also encompassed by the present application.

Abstract: A modular stator portion adapted to be used in a transverse flux electrical machine (TFEM) includes a plurality of phase modules adapted to be axially secured together with a plurality of securing members. The phase modules of at least en embodiment thereof are substantially identical and interchangeable. Each pair of axially adjacent phase modules are adapted to be angularly located in respect with each other to set a phase shift. A phase module and a kit of phase modules sized and designed to assemble a modular stator are also encompassed by the present application.

Abstract: A housingless transverse flux electrical machine (TFEM) includes a pair of halves adapted to receive therein a plurality of cores and a coil therein. The halves are the exterior boundary for the environment and the TFEM can be in operating configuration without further housing.

Abstract: A method of assembling a rotor portion adapted to be used in a rotatable transverse flux electrical machine (TFEM) is presented, the method comprising assembling at least one concentrator to a concentrator-receiving jig, applying bonding material between the concentrator and a magnet-and-concentrator supporting frame, assembling the concentrator-receiving jig to the magnet-and-concentrator supporting frame wherein a radial reference portion of the concentrator-receiving jig is material to set a distance between the concentrator assembled to the concentrator-receiving jig and the magnet-and-concentrator supporting frame, curing the bonding material to secure the concentrators to the magnet-and-concentrator supporting frame, and removing the concentrator-receiving jig without the at least one concentrator that remains secured to the magnet-and-concentrator supporting frame. A tool thereof is also encompassed by the present application.

Abstract: A rotatable transverse flux electrical machine (TFEM) comprising a stator portion and a rotor portion operatively disposed inside the stator portion is described therein, the rotor portion comprising a plurality of magnets and concentrators alternatively affixed in a cylindrical arrangement to a non-magnetic magnets-and-concentrators supporting frame, the non-magnetic magnets-and-concentrators supporting frame being operatively secured to an axial shaft concentrically aligned with a rotational axis of the rotor portion.

Abstract: A method of assembling a rotor portion adapted to be used in a rotatable transverse flux electrical machine (TFEM) is presented, the method comprising assembling at least one concentrator to a concentrator-receiving jig, applying bonding material between the concentrator and a magnet-and-concentrator supporting frame, assembling the concentrator-receiving jig to the magnet-and-concentrator supporting frame wherein a radial reference portion of the concentrator-receiving jig is material to set a distance between the concentrator assembled to the concentrator-receiving jig and the magnet-and-concentrator supporting frame, curing the bonding material to secure the concentrators to the magnet-and-concentrator supporting frame, and removing the concentrator-receiving jig without the at least one concentrator that remains secured to the magnet-and-concentrator supporting frame. A tool thereof is also encompassed by the present application.

Abstract: A phase module of a transverse flux electrical machine (TFEM) includes a pair of halves adapted to receive therein a plurality of cores and a coil therein. The cores are discretely located in the phase with radially angularly distributed core-receiving spaces. The plurality of cores and the coil are secured in the halves with resin. The proximal radial portion of the phase module is bored to define the interior diameter of the phase module. A method of assembling a phase module and a kit thereof are encompassed by the present application.

Abstract: A housingless transverse flux electrical machine (TFEM) includes a pair of halves adapted to receive therein a plurality of cores and a coil therein. The halves are the exterior boundary for the environment and the TFEM can be in operating configuration without further housing.

Abstract: A modular stator portion adapted to be used in a transverse flux electrical machine (TFEM) includes a plurality of phase modules adapted to be axially secured together with a plurality of securing members. The phase modules of at least en embodiment thereof are substantially identical and interchangeable. Each pair of axially adjacent phase modules are adapted to be angularly located in respect with each other to set a phase shift. A phase module and a kit of phase modules sized and designed to assemble a modular stator are also encompassed by the present application.

Abstract: A stator adapted to be used in a transverse flux electrical machine (TFEM) includes a plurality of phases comprising respective halves sized and designed to receive therein a plurality of cores about a rotational axis. The halves can be separated in angular portions sized and designed to be assembled together and further locate cores therein in respective predetermined positions. A TFEM phase assembly and a kit of phases components sized and designed to assemble a stator are also encompassed by the present application.

Abstract: A modular stator adapted to be used in a transverse flux electrical machine (TFEM) includes a plurality of phase modules comprising respective halves sized and designed to receive therein a plurality of cores about a rotational axis. The phase modules are adapted to be assembled together to produce a multi-phase stator and disassembled to replace or maintain a phase module. The phase modules are configured to be angularly shifted from one another to produce a multi-phase TFEM. A TFEM phase assembly and a kit of phases components sized and designed to assemble a multi-phase stator are also encompassed by the present application.

Abstract: The invention concerns a linear transverse flux electrical machine (TFEM) comprising a fixed portion; and a movable portion located in respect with the fixed portion, the movable portion including an alternate sequence of magnets and concentrators longitudinally disposed about a longitudinal axis thereof; the fixed portion including at least one phase, the at least one phase including a plurality of cores cooperating with a coil disposed about the longitudinal axis, each core including a skewed pair of poles to progressively electromagnetically engage an electromagnetic field of respective cooperating concentrators. The invention is also concerned with a plurality of elements located in desired positions in the TFEM and also with a rotatable TFEM.

Abstract: The invention concerns a windmill including a rotatable transverse flux electrical machine (TFEM) comprising a stator portion; and a rotor portion rotatably located in respect with the stator portion, the rotor portion including an alternate sequence of magnets and concentrators radially disposed about a rotation axis thereof; the stator portion including at least one phase, the at least one phase including a plurality of cores cooperating with a coil disposed about the rotation axis, each core including a skewed pair of poles to progressively electromagnetically engage an electromagnetic field of respective cooperating concentrators. The invention is also concerned with a plurality of elements located in desired positions in the TFEM.

Abstract: The invention concerns a rotatable transverse flux electrical machine (TFEM) comprising a stator portion; and a rotor portion rotatably located in respect with the stator portion, the rotor portion including an alternate sequence of magnets and concentrators radially disposed about a rotation axis thereof; the stator portion including at least one phase, the at least one phase including a plurality of cores cooperating with a coil disposed about the rotation axis, each core including a skewed pair of poles to progressively electromagnetically engage an electromagnetic field of respective cooperating concentrators. The invention is also concerned with a plurality of elements located in desired positions in the TFEM and also with a linear TFEM.

Abstract: The present invention provides cancellation of cogging torque of a permanent magnet electrical machine using two sets of magnetic elements, one set is mechanically coupled to the stator with the other set being mechanically coupled to the rotor of the machine. At least one of the two sets has permanent magnets with the magnetic elements of the other set being made of permanent magnets or non-magnetized ferromagnetic materials such as soft iron. When the arrangement of the elements of the two sets is properly designed, magnetic attraction and repulsion forces between the magnetic elements of the two sets produces, as the machine operates, an anti-cogging torque which substantially cancels the cogging torque of the machine.