Abstract: A linear drive system for an elevator installation having an elevator car includes a stationary part for alignment with a hoistway wall of the elevator installation and a movable part that moves along the stationary part. The movable part is connected to the elevator car or to a counterweight, wherein the stationary part is shaped so as to substantially envelope the movable part.

Abstract: A magnetic assembly structure has a main body and an inserting component. A first receiving slot of the main body receives a first magnetic component, and a second receiving slot of the main body penetrates a main body surface to form a main body opening on the main body surface. An engagement slot of the main body is disposed between the first receiving slot and the second receiving slot, communicated with the second receiving slot, and has a contacting surface being away from the main body surface with a distance. The receiving slot of the inserting component receives a second magnetic component. The inserting component is inserted into the second receiving slot via the main body opening, and the second magnetic component moves into the engagement slot. The magnetic assembly is assembled with a less force, has higher safety, and is hard to be disassembled without allowance or explanations.

Abstract: A magnetic assembly structure has a main body and an inserting component. A first engagement slot of the main body receives a first magnetic component, and a first receiving slot of the main body penetrates a main body surface to form a main body opening on the main body surface. The first engagement slot and the first receiving slot are communicated with each other. The inserting component is inserted into the first receiving slot via the main body opening, and the first magnetic component moves into the first magnetic component receiving slot of the inserting component. The magnetic assembly is assembled with a less force, has higher safety, and is hard to be disassembled without allowance or explanations.

Abstract: The present disclosure relates to a vehicle display apparatus including: a display case; an arm plate elastically coupled to the display case; and a solenoid module, wherein the solenoid module includes: a moving core formed in a rod shape, and having both ends fixed to the arm plate; and a base core being elastically coupled to the display case, and having a coil formed therein which is wound in one direction to surround at least a portion of the moving core.

Abstract: To achieve the above object, a cylindrical linear motor of the present invention includes a cylindrical linear motor includes: a core having a cylindrical yoke, and a plurality of teeth that are annular and are provided at intervals in an axial direction on an outer periphery of the yoke; a winding mounted in slots between the teeth; and a field which is cylindrical and in which the core is inwardly inserted movably in the axial direction to arrange N poles and S poles alternately in the axial direction, wherein the field has permanent magnets of a main magnetic pole radially magnetized and permanent magnets of a sub magnetic pole axially magnetized that are alternately arranged in a Halbach array in the axial direction, an axial length of the permanent magnet of the main magnetic pole is longer than an axial length of the permanent magnet of the sub magnetic pole, and the permanent magnet of the sub magnetic pole has a coercive force higher than that of the permanent magnet of the main magnetic pole.

Abstract: The present invention provides a high-pressure piston-cylinder assembly for compaction treatment comprising a cylinder comprising a plurality of sections which are longitudinally stacked and joined to form the cylinder; a piston configured for moving in and along the cylinder; and a base configured for being coupled with the cylinder to provide mechanical support to the cylinder; wherein each of the sections includes one or more releasing channels for releasing of liquid or gas fluid generated during compaction treatment. The high-pressure piston-cylinder assembly is sealed by one seal having a helical coiled sealing ring structure tightly encircling the piston, and another seal encircling a cylindrical sealing block protruded from the base and into the cylinder. The resulting piston-cylinder assembly can be more effectively manufactured, has better durability and tolerance in high-pressure operation.

Abstract: Embodiments of an electrical power generation device and methods of generating power are disclosed. One such method comprises creating magnetic flux forces generally transverse to a face of a magnet facing a center of a cylinder, moving a coil of wound conductive material partially through the center opening of the cylinder to produce the electric current and, routing resistive forces generated from the moving coil through an iron core, wherein the first coil is positioned concentrically about a first portion of the core, and further routing the resistive forces around the cylinder.

Abstract: A rail maintenance vehicle includes a frame, a workhead, and a vibration unit. The frame includes wheels that travel along rails. The vibration unit includes a rod member having a coil assembly coupled thereto. The vibration unit further includes a core assembly operable to receive the rod member therein. The core assembly includes a plurality of magnet members disposed along the periphery of the core assembly. The coil assembly and magnet members are operable to impart linear motion to the rod member relative to the core assembly.

Abstract: The invention pertains to a method for determining machine parameters of a mechanical device in which a first element and a second element are mutually movable in settable patterns of movement, the method comprising placing a measuring arm between the first and second elements, displacing the first and second elements mutually in a predetermined intended movement path, applying a predetermined force between the first element and the second element substantially in the longitudinal direction of the measuring arm, recording the resulting actual movement path by means of the measuring arm, thereby determining a difference between the intended movement path and the actual movement path, and deriving, based on the determined difference, machine parameters indicating a condition of the mechanical device, characterized in that the predetermined force comprises a dynamically varying portion. The invention furthermore pertains to a test assembly for performing said method.

Abstract: This disclosure discloses a linear motor including a stator and a mover including a field magnet and an armature winding. The mover includes a mover iron core including a plurality of teeth around each of which the armature winding is wound. Some or all of the plurality of teeth include a first hole formed in a slot housing the armature winding.

Abstract: An illustrative example embodiment of a method of making a rotary magnetic drive member includes establishing a plurality of magnet retainers on a rod using an additive manufacturing process. Magnets are inserted between the retainers with magnetic poles of axially adjacent ones of the magnets oriented with like poles facing toward a portion of one of the retainers between the adjacent ones of the magnets.

Abstract: A linear actuator comprising a first assembly, a second assembly, and a magnetic sensor. The second assembly is linearly movable with respect to the first assembly such that the linear actuator is configured so as to be in one of a plurality of linear positions. The first assembly and the second assembly cooperatively define a magnetic pathway. The magnetic pathway is configured to vary in length with linear movement of the first assembly with respect to the second assembly. The magnetic sensor is configured to output a signal indicative of the magnetic field flux routed via the magnetic pathway.

Abstract: A lithography device includes an eddy-current brake for damping the movement of a structural element of the lithography device. The eddy-current brake includes a plurality of magnets disposed in an arc-shaped arrangement, and a plurality of electrically conductive sheets arranged respectively between adjacent ones of the magnets. A relative movement between the magnets and the electrically conductive sheets in a direction to be damped inducing eddy currents in the electrically conductive sheets.

Abstract: A blowout preventer comprising: a body comprising a bore therethrough; a cavity disposed through the body and intersecting the bore; first and second closure members moveably disposed within the cavity on opposite sides of the bore; a first rod having a length and comprising a first end coupled to the first closure member; a second rod having a length and comprising a first end coupled to the second closure member; a first glider assembly wherein a second end of the first rod is at least partially disposed within the first glider assembly; and a second glider assembly wherein a second end of the second rod is at least partially disposed within the second glider assembly.

Abstract: A vibration isolator is provided including a base structure, a load structure, a displacement structure and at least one vertical open gap formed by opposing and substantially parallel walls of the base structure and the load structure. The opposing walls being at least partly covered by respective arrays of permanent magnets, neighboring magnets in the arrays having alternating magnetization directions, an arrangement of the permanent magnets in the arrays being such that a gravitational force on the load structure is substantially compensated by a net magnetic force of the base structure on the load structure. The displacement structure relatively displaces arrays of permanent magnets of the opposing walls with respect to each along the gap for adjusting a load capacity of the vibration isolator.

Abstract: An electromagnetic actuator (100) comprises magnets (109, 111, 113, 115, 11), and a ferromagnetic structure (103) accommodating control conductors (118, 121, 123, 125). The magnets and the structure can move with respect to one another under control of control currents in the control conductors. The magnetic field in a gap (107) between the magnets and the ferromagnetic structure is oriented perpendicular to the direction of relative movement. The structure (103) accommodates damping conductors (127) that form closed loops of an electrically conductive material, different from the ferromagnetic material. The damping conductors (127) provide a damping force induced by the relative movement.

Abstract: A permanent magnet power generating device comprises a first soft magnetic body (1), a coil (2) and a permanent magnet (3). The first soft magnetic body has a first branch (11), a second branch (12), and a third branch (13) arranged at intervals. The second branch is located between the first branch and the third branch. The coil is wound around the second branch. The permanent magnet, which is in the form of “C” shape, is provided with two branches inserted between the first branch and the second branch, and between the second branch and the third branch, respectively. Both of the branches of the permanent magnet are in contact with the first branch and the second branch of the first soft magnetic body, or with the second branch and the third branch of the first soft magnetic body, selectively. The permanent magnet power generating device is low-cost, simple-structure, non-polluting, and suitable for the application of collecting micro energy.

Abstract: There is provided a movable iron core linear actuator, which includes a magnetic circuit (mc) which causes a moving element (2) to reciprocate. The magnetic circuit (mc) includes an iron core (20) constituting the moving element (2), a stator core (10) including a facing portion (10c) which faces the iron core (20), a pair of permanent magnets (12a, 12b) disposed in the facing portion (10c) along a reciprocating direction and having inverted magnetic poles at their surfaces which face the iron core, and a coil (11) wound around the stator core (10). Energization to coil (11) causes the moving element (2) to reciprocate. When the coil (11) is not energized, offset force (F4) is applied to the moving element (2) by the magnetic flux produced by the permanent magnets (12a, 12b).

Abstract: The invention provides an active element for an electromagnetic machine, the element comprising an alternating succession in a main direction of portions presenting a first magnetic property and of portions presenting a second magnetic property, wherein the element includes a non-magnetic covering that is thin relative to a thickness of the portions and that extends to cover a substantial fraction of an outside surface of the active element, the covering being secured to at least some of the portions and presenting sufficient strength to form a member for mechanically transmitting the magnetic forces to which the portions are subjected.

Abstract: There is provided an electric machine, which is configured such that magnetic poles provided on a stator and a mover or rotor of the electric machine have an asymmetric shape, thus being capable of reducing a torque ripple.

Abstract: A primary for a linear drive motor has first and second stacks, each with inner and outer teeth and a bearing mount. A magnet is disposed between the first and second stacks, and a coil wrapped is between the first and second stacks. A bearing is operatively mounted to at least one of the bearing mounts of the first and second stacks. The outer teeth of the first and second stacks may have a projection comprising the bearing mount. The bearing mount may be embedded within the stacks. The stacks may be assembled in a housing and the housing may have a first bearing outboard of the first stack, a second bearing outboard of the second stack, and a third bearing in staggered relationship with the first and second bearings across the housing in an arrangement bilaterally symmetric about an axis transverse to the direction of travel.

Abstract: A stator is provided with a ring-shaped outer stator-projection and a ring-shaped inner stator-projection. A plunger is provided with a ring-shaped outer plunger-projection and a ring-shaped inner plunger-projection. A magnetic force is generated at three portions between the plunger and the stator. The inner stator-projection has a first tapered surface and the outer plunger-projection has a second tapered surface. The first tapered surface and the second tapered surface confront each other when the plunger moves toward the stator.

Abstract: A linear motor comprises a first member including armature modules, a second member including permanent magnet modules, and a supporting mechanism. Each armature module has at least four salient poles projected from a magnetic body to the second member and coils winding round the salient poles, through which a single-phase current flows. Each permanent magnet module has as many permanent magnets as the number of the salient poles included in each armature module. Currents having a predetermined phase difference are applied to the armature modules such that a thrust according to a traveling magnetic field is generated in a unit composed of S armature modules and P (P is a multiple of 2) permanent magnet modules arranged in a moving direction. A stator corresponding to one of the first and second members is fixed to the supporting mechanism such that a mover corresponding to the other moves by the thrust.

Abstract: Disclosed herein is a linear, curved or rotary electric machine. The electric machine includes first and second movers which are adjacent to each other and have a phase angle difference of 60° therebetween. The first mover includes phases U, V and W and the second mover includes phases /U, /V and /W. The electric machine of the present invention can reduce pulsations of thrust caused by end effect. In particular, in the case where the stator includes permanent magnets having the same poles and salient poles which alternate with the permanent magnets, the number of permanent magnets used can be reduced to half of that of a conventional linear electric machine.

Abstract: A stator core section for a stator of a modulated pole machine, the modulated pole machine including the stator, a moving device, and an active gap between respective interface surfaces of the moving device and the stator for communicating magnetic flux between the stator and the moving device, the moving device being adapted to move relative to the stator in a direction of motion, wherein the stator core section includes a stator core back from which a plurality of teeth extend, each tooth extending in a respective first direction defining a direction towards the rotor, the teeth being arranged along a second direction defining the direction of motion, each tooth having at least one side wall facing a neighbouring tooth and an interface surface facing the active gap, the interface surface and the side wall forming an edge connecting the interface surface and the side wall.

Abstract: A periodic magnetic field generation device is provided with a field pole of a Halbach array structure in which main pole permanent magnets magnetized in a direction of a generated field and sub pole permanent magnets magnetized in a direction opposite to the direction of magnetic poles of the main pole permanent magnets are alternately disposed linearly or circularly so as to be adjacent to each other. A part of each of the main pole permanent magnets on a side on which the magnetic field is generated is replaced by a soft magnetic member, and a relation between a length A of the soft magnetic member on the side of the generated field along a moving direction and a length B of each main pole permanent magnet on a side of a back yoke along the moving direction is A<B.

Abstract: There is provided a movable iron core linear actuator, which includes a magnetic circuit (mc) which causes a moving element (2) to reciprocate. The magnetic circuit (mc) includes an iron core (20) constituting the moving element (2), a stator core (10) including a facing portion (10c) which faces the iron core (20), a pair of permanent magnets (12a, 12b) disposed in the facing portion (10c) along a reciprocating direction and having inverted magnetic poles at their surfaces which face the iron core, and a coil (11) wound around the stator core (10). Energization to coil (11) causes the moving element (2) to reciprocate. When the coil (11) is not energized, offset force (F4) is applied to the moving element (2) by the magnetic flux produced by the permanent magnets (12a, 12b).

Abstract: The present invention provides a linear motor where a load onto a supporting mechanism and the ripple of force are lessened and the ripple can be adjusted. As a leakage flux between the magnetic poles can be reduced by being configured by plural magnetic poles arranged with a magnet arranged on a mover held between them, a core that continuously connects the magnetic poles that holds the magnet of the mover between them, windings are integrally wound onto the plural magnetic poles and the mover formed by a row of magnets the magnetic poles of which are alternately arranged or a row of magnets the polarity of which is alternately arranged and magnetic materials, by arranging the plural magnetic poles arranged with the magnet held between and the plural magnetic poles provided with the core that continuously connects the magnetic poles.

Abstract: The present invention provides a stator core and a stator for a cylinder linear motor at low cost, in which slot pitches can be determined accurately. A stator core for use in a cylinder linear motor has a positioning rod 48 and a plurality of core bodies 42. The positioning rod 48 extends in a rod shape, and a plurality of recesses 480 are formed at predetermined intervals in the extension direction. The plurality of core bodies 42 are formed in a flat plate shape, and a hole 421 in which a movable element can be inserted is formed in a direction orthogonal to the flat plate. In the outer circumference of the plurality of core bodies 42, fitting parts 422 which fit in the recesses 480 are provided. When the fitting parts 422 fit in the recesses 480, the core bodies 142 are positioned at predetermined intervals.

Abstract: An example apparatus comprises a drive coil energizable by a drive signal, at least one permanent magnet, and at least one magnetic return path element for flux induced by the drive signal, the magnetic return path element, such as a balanced armature, being configured to provide a variable reluctance, so as to reduce nonlinearities in a displacement versus drive signal relationship. Modifying the reluctance versus flux properties of the magnetic return path of a transducer, e.g. the armature of a balanced armature device, allows compensation for nonlinearity arising in another part of the apparatus.

Abstract: The disclosure discloses a linear motor comprising: a field system in which a plurality of permanent magnets are linearly arranged: and an armature configured to face said field system and to have an armature core provided with armature windings, said linear motor running along a predetermined direction of travel with either said field system or said armature serving as a mover and the other serving as a stator, wherein: said armature core comprises: auxiliary teeth that are respectively provided on both ends along said direction of travel and around which said armature windings are not wound; and a plurality of main teeth that are provided between said auxiliary teeth, and each of said auxiliary teeth comprises an end portion shape in which a dimension in a teeth height direction orthogonal to said direction of travel is variable along said direction of travel.

Abstract: A camera shutter device and an optical apparatus having the same are disclosed. The camera shutter device includes a pair of cores, each wrapped by a coil and having a distal end facing the other, wherein each coil is formed at the distal end with an electromagnetic force line generating unit. A magnet comprising a first magnet and a second magnet is interposed between the pair of cores. The magnet linearly and reciprocally moves in a direction perpendicular to the electromagnetic force line generating unit, and a slider opens and shuts a shutter blade as the magnet linearly and reciprocally moves, whereby miniaturization and thinning of the shutter device can be realized, and an opening/shutting operation can be stably performed.

Abstract: A primary for a linear drive motor has first and second stacks, each with inner and outer teeth and a bearing mount. A magnet is disposed between the first and second stacks, and a coil wrapped is between the first and second stacks. A bearing is operatively mounted to at least one of the bearing mounts of the first and second stacks. The outer teeth of the first and second stacks may have a projection comprising the bearing mount. The bearing mount may be embedded within the stacks. The stacks may be assembled in a housing and the housing may have a first bearing outboard of the first stack, a second bearing outboard of the second stack, and a third bearing in staggered relationship with the first and second bearings across the housing in an arrangement bilaterally symmetric about an axis transverse to the direction of travel.

Abstract: A primary for a linear drive motor has a stage with stacks made from solid steel. Each stack has inner and outer teeth made that form a generally u-shaped cross-section for the stack. A magnet is disposed between the first and second stacks and a a coil wrapped between the first and second stacks. The stacks may be placed in a housing or may be formed as a housingless stage. The stacks and/or housing may be modified to selectively skew motor alignment to reduce motor cogging. The stacks may be contoured to follow various secondary forms. The stack inner and outer teeth lengths may be adjusted to help balance or optimize the magnetic circuit, to increase tooth surface area for increasing force, to allow more motor windings in the coil of the stack assembly, and to help locate the magnet and coil near the tooth surface.

Abstract: The invention provides slotless electrical motors with grooved core (grooved motors). The motors with grooved core are much easier in production than conventional motors with laminated core. Also, they do not have significant Eddy currents losses due to grooves.

Abstract: The invention provides electrical actuators with grooved table top or housing (grooved actuators). In the invented electrical actuators, the Eddy current losses in moving conductive part from stationary permanent magnets (or in stationary conductive part from moving magnets) are reduced due to grooves.

Abstract: A magnet carrier for a moving magnet actuator. The magnet carrier includes a single longitudinal beam extending in the direction of intended motion of magnet carrier and two pairs of transverse ribs, extending from opposite sides of the longitudinal beam. The longitudinal beam and the two pairs of transverse ribs are arranged to engage a pair of substantially planar magnets. The single longitudinal beam and the two pairs of transverse ribs each comprise a lip for engaging a chamfered edge of a pair of substantially planar magnets so that the lip opposes motion of the magnets in a direction perpendicular to the plane of the magnets. The longitudinal beam and the transverse ribs are adhered to the magnets by an adhesive with an elastic modulus of less than 5 MPa and a tensile strain of greater than 100%.

Abstract: An electromagnetic linear motor is proposed that features a longitudinal stator, a hollow body of the stator made of a magnetically soft material, a magnetic coil of the stator, a rotor in the stator that is movable linearly relative to the magnetic coil, an axially magnetized permanent magnet of the rotor and an axially variable shape or variable magnetic material properties of the stator.

Abstract: A linear motor includes a stator having field poles arranged linearly with opposing polarities arranged in an alternating manner; and a rotor having an armature core with teeth that faces a pole face of the field poles with a gap, and coils wound around the teeth. The stator and the rotor are supported in a slidable manner, a direction perpendicular to a sliding direction of the rotor and in parallel with the pole face is defined as a stacking direction. A head of each of the teeth has an extended portion extended in the sliding direction. At least heads of the teeth arranged at both ends of the armature core along the sliding direction is divided into a plurality of areas along the stacking direction. At least one of extended portions arranged on adjacent areas is extended by a different length along the sliding direction.

Abstract: A linear motor comprises a first member including armature modules, a second member including permanent magnet modules, and a supporting mechanism. Each armature module has at least four salient poles projected from a magnetic body to the second member and coils winding round the salient poles, through which a single-phase current flows. Each permanent magnet module has as many permanent magnets as the number of the salient poles included in each armature module. Currents having a predetermined phase difference are applied to the armature modules such that a thrust according to a traveling magnetic field is generated in a unit composed of S armature modules and P (P is a multiple of 2) permanent magnet modules arranged in a moving direction. A stator corresponding to one of the first and second members is fixed to the supporting mechanism such that a mover corresponding to the other moves by the thrust.

Abstract: An improvement on the compact electromechanical mechanism of patent application Ser. No. 29/364,177 composed of a divergent flux path electromagnetic device includes dual magnetic flux paths from a radially poled permanent magnet along parallel and coaxially pole pieces so as the magnetic flux is diverted in a single direction by a pair of control coils wound coaxially on each magnet flux path about the center pole piece and adjacent to the radially poled permanent magnet. The control coils may be energized in a variety of ways to achieved desirable linear or bi-linear motion for various linear motion and linear reciprocating devices.

Abstract: A linear motor armature includes a plurality of armature core blocks that are linearly connected to each other, each armature core block being formed of a stack of a plurality of armature cores that are substantially I-shaped, each armature core block including teeth portions around which armature coils are wound, the teeth portions being provided in two end portions of the armature core block in a longitudinal direction of the armature core block, and a step portion extending in a direction perpendicular to the longitudinal direction of the armature core block, the step portion being provided at a center of the armature core block and having a width larger than a width of the teeth portions, wherein an attachment hole for fixing each of the plurality of armature core blocks to an external armature attachment plate is formed in each of two side portions of the step portion.

Abstract: The production effort for electrical machines with pole teeth which are fitted with permanent magnets is intended to be reduced. A permanent magnet is inserted between two pole teeth halves (1, 2) for this purpose. The two halves (1, 2) are connected to one another with an interlock by means of a plastic sheath (4). The plastic sheath (4) results in a dimensionally stable pocket (3), in which the permanent magnet can subsequently be inserted. It is therefore possible to insert the permanent magnet as late as possible during the manufacturing process, thus reducing the overall production effort.

Abstract: The invention relates to a stator packet for a long stator linear motor of a magnetic levitation train. The stator packet is composed of a plurality of sheet metal layers (6) comprising alternating grooves (7) and teeth (8) for receiving alternating-current windings (20). The grooves (7) are configured so that the windings (20) can be pressed into the same and retained therein without additional auxiliary means. According to the invention, the grooves (7) and teeth (8) are congruent, have centrally symmetrical side walls (12, 14), and are coated only with a thin corrosion protection coating that changes the shape of the teeth and grooves only insignificantly.

Abstract: A supporting surface and a touch screen member mounted to a plastic frame having a first vibration transmitting slot and at least two mounting slots. A pair of similar L-shaped poles is mounted in the frame in juxtaposition to define gaps between them. One of the poles constitutes a stationary pole and the other of the poles constitutes a movable pole. A winding is mounted on the stationary pole. The frame defines a vibration transmitting slot, and the touch screen member is attached to the frame by a tab that is press fitted into the vibration transmitting slot so that vibrations created by the movable pole can be transmitted via the vibration transmitting slot to the touch screen member. The additional slots defined by the frame and tabs defined by the supporting surface mutually coact for mounting the frame to the supporting member in a stationary position.

Abstract: An apparatus comprises a linear electromagnetic actuator which has a series of ferromagnetic poles, coils, and a series of permanent magnets to interact with the poles to induce movement of the actuator along a path. The poles have non-uniform configurations.

Abstract: The disclosure discloses a linear motor comprising: a field system in which a plurality of permanent magnets are linearly arranged: and an armature configured to face said field system and to have an armature core provided with armature windings, said linear motor running along a predetermined direction of travel with either said field system or said armature serving as a mover and the other serving as a stator, wherein: said armature core comprises: auxiliary teeth that are respectively provided on both ends along said direction of travel and around which said armature windings are not wound; and a plurality of main teeth that are provided between said auxiliary teeth, and each of said auxiliary teeth comprises an end portion shape in which a dimension in a teeth height direction orthogonal to said direction of travel is variable along said direction of travel.

Abstract: An exemplary description provided for patent searches includes a linear electrodynamic system involving conversions between electrical power and mechanical motion uses unique magnet assemblies that move and unique stator assemblies and stator members shaped and oriented with respect to the moving magnet assemblies.

Abstract: A magnet yoke of a linear motor includes a plurality of recesses set in equidistance in a side surface of the magnet yoke and defining a plurality of peaks and valleys arranged alternately and a plurality of permanent magnets aligned abreast in equidistance in an opposite side surface of the magnet yoke so that an interval is defined between two adjacent permanent magnets and has a center aligned with a center of a corresponding peak and valley. Two adjacent permanent magnets form a magnet unit for generating a magnetic flux distribution. An empty section formed in each of the valleys is twice as wide as an interval between two adjacent permanent magnets, and is located in a middle of the two permanent magnets so as to make a moderate magnetic flux distribution.

Abstract: In the field of electrical linear motors, it is known to make more than one laminate core (20) having teeth (22), wherein grooves (24) are designed between the teeth (22). Until now, coils assigned to the laminate core are arranged on each laminate core. The invention is based on this background. Instead, each coil (18) is arranged with a first section in a groove (24) of a first laminate core (20a) and with a second section in a groove (24) of a second laminate core (20b). The coils are consequently wound in an entirely different direction and now lie in a plane perpendicular to the direction of movement of the secondary part of the electrical linear motor.