A three-dimensional magnet structure (6) made up of a plurality of individual magnets (4), the magnet structure (6) having a thickness that forms its smallest dimension, the magnet structure (6) incorporating at least one mesh (5a) exhibiting mesh cells each one delimiting a housing (5) for a respective individual magnet (4), each housing (5) having internal dimensions just large enough to allow an individual magnet (4) to be inserted into it, the mesh cells being made from a fibre-reinforced insulating material, characterized in that a space is left between the housing (5) and the individual magnet (4), which space is filled with a fibre-reinforced resin, the magnet structure (6) comprising a non-conducting composite layer coating the individual magnets (4) and the mesh structure (5a).

A system for managing storage of electrical energy can include an electromagnetic machine and a controller. The electromagnetic machine can have a rotor and a stator. The rotor can be configured to be connected to a shaft. One of the rotor or the stator can have first windings and second windings. The controller can be configured to control first circuitry and second circuitry. The first circuitry can be configured to cause energy to flow from a first energy storage device to the first windings to cause the shaft to rotate. The second circuitry can be configured to cause energy to flow selectively: (1) from a second energy storage device to the second windings to cause the shaft to rotate or (2) from the second windings to the second energy storage device to cause the second energy storage device to be charged.

A stator (1) for an electric motor has a modular stator body (2) with at least two stator cores (10, 20) arranged axially in series. Each core (10, 20) is form from a plurality of stacked electrical laminations (11, 21). This forms winding poles (16, 26) with radially extending winding webs (17, 27). The stator cores (10, 20) each have a separate overmolding (U1, U2).

An electric machine includes a stator and a rotor. The stator includes a frame structure and an electromagnetically active part inside the frame structure. The rotor includes a shaft and an electromagnetically active part for producing torque in co-operation with the electromagnetically active part of the stator. The electric machine includes bearings inside the frame structure and arranged to support the rotor rotatably with respect to the stator. A magnetic bearing module for supporting the shaft is attached to an outer surface of the frame structure so that the frame structure and the magnetic bearing module are axially successive. The magnetic bearing module is a replaceable component which is non-destructively detachable from the frame structure. Thus, the electric machine can be adapted to different mechanical loads by selecting a suitable magnetic bearing module.

A stator cooling assembly for a linear motor includes a stator and a modular cooling arrangement. The modular cooling arrangement comprises: a U-shaped fluid cooling pipe having first and second linear segments extending along first and second opposite longitudinal sides of the stator; an inlet and outlet port connected to a free end of the first and second linear segments, respectively, for circulating a cooling fluid; a central cooling arrangement comprising primary cooling units mounted into recesses of the stator; and connecting members connecting the central cooling arrangement to the fluid cooling pipe. Each primary cooling unit comprises a heat pipe having first and second portions extending along a recess of the stator and along a portion of the fluid cooling pipe, respectively. The connecting members connect the second portion of the heat pipe of each primary cooling unit to corresponding portions of the fluid cooling pipe.

An electric power system for a vehicle includes at least one electric machine, one or more power rectifiers, and a plurality of DC channels. The at least one electric machine includes a plurality of tooth-wound multi-phase windings that are substantially magnetically decoupled, and the at least one electric machine is mechanically balanced even if one of the plurality of windings is de-energized. The one or more power rectifiers are configured to produce rectified power from the power generated by the at least one electric machine. The plurality of DC channels are formed after the at least one power rectifier and are configured to provide DC power to one or more loads within a vehicle.

Methods, systems, and devices are disclosed for wind power generation. In one aspect, a wind power generator includes a support base; inductors positioned over the support base in a circular array; an annulus ring track fixed to the base support and providing a circular track around which the inductors are located; an annulus ring rotor placed on the annulus ring track and engaged to rollers in the circular track so that the annulus ring rotor can rotate relative to the an annulus ring track, in which the annulus ring rotor include separate magnets to move through the circular array of inductors to cause generation of electric currents; and a wind rotor assembly coupled to the annulus ring rotor and including wind-deflecting blades that rotate with the rotor and a hollow central interior for containing a wind vortex formed from deflecting wind by the blades to convert into the electric energy.

An electromagnetic machine includes a housing, an axle coupled to the housing in a rotatable fashion, a stator assembly disposed generally within the housing, the stator assembly including a stator plate and a stator bearing coupled to the axle such that the stator assembly is rotatable about the axle, a rotor assembly fixed to the axle and disposed generally within the housing and including a rotor housing that defines a circumferentially extending channel that is sized to receive a portion of the stator assembly therein; and a locking mechanism configured to selectively prevent and permit rotation of the stator assembly about the axle via the stator bearing. The housing can include an access window defined therein such that the stator assembly is accessible through the access window.

A coaxial pump or turbine module includes an integral, modular motor or generator comprising a magnet structure containing radial or axial permanent magnets and/or induction coils detachably fixed to a rotor, and a stator housing detachably fixed to the module housing. Working fluid is directed axially through a flow path symmetrically distributed within an annulus formed between the module housing and the stator housing. The stator housing can be cooled by the working fluid, or by a cooling fluid flowing between passages of the flow path. The flow path can extend over substantially a full length and rear surface of the stator housing. A plurality of the modules can be combined into a multi-stage apparatus, with rotor speeds independently controlled by corresponding variable frequency drives. Embodiments include guide vanes and/or diffusers. The rotor can be fixed to a rotating shaft, or rotate about a fixed shaft.

The present invention is intended to provide: a cooling jacket device 1 which offers excellent cooling performance, is easy to manufacture and enables cost reduction; and a rotary electric machine including the cooling jacket device. The cooling jacket device includes: a plurality of jacket bodies each of which is formed in a substantially flat plate shape and includes therein a channel communicating with a pair of inlet/outlet ports formed in an outer surface of the jacket body, and allowing a refrigerant to flow therethrough; a plurality of coupling members which couple and retain the plurality of jacket bodies in conformity with an outer peripheral shape of a heat generating portion of the rotary electric machine; and a plurality of tubular members which are connected to the inlet/outlet ports, through which the refrigerant discharged from the inlet/outlet port of one of the plurality of jacket bodies is sent to the inlet/outlet port of another one of the plurality of jacket bodies so that the refrigerant flows through the channels of the plurality of jacket bodies.