Abstract: A rotary machine, in particular an electric machine, has a shaft, which extends in an axial direction and which has a cavity, and a heat pipe, in which a first thermal medium is arranged. The rotary machine is characterized in that the heat pipe is designed as an annular chamber, which surrounds the cavity. Improved cooling for the rotary machine is ensured by this arrangement.

Abstract: A stator includes a cylindrical core with a plurality of longitudinally extending slots, a first winding set formed as a first cascaded wire in two radial layers of the slots, a second winding set formed as a second cascaded wire in two other radial layers of the slots, and a jumper connecting the first and second wires. A first winding set may have three cascaded phase wires in first and second layers of the slots, and a second winding set may have three cascaded phase wires in third and fourth layers of the slots. A winding set of a first phase may have a first cascaded wire in two radial layers of a first one of the slots, and a winding set of a second phase may have a second cascaded wire in two other radial layers of the first one of the slots.

Abstract: A rotor of a rotary electric machine includes a rotor core of an approximately annular shape which has plural sets of plural magnet insertion holes arranged radially, the plural sets being arranged in a circumferential direction with a predetermined gap, and plural permanent magnets which are inserted into the magnet insertion holes, respectively. Each permanent magnet has a circular arc shape in a radial section, and a curved surface thereof is convex toward a rotation shaft of the rotor. Plural permanent magnets which are respectively inserted into the radially arranged plural magnet insertion holes in each set includes a first permanent magnet which is positioned on an outer circumferential surface side and a second permanent magnet which is positioned on a rotation shaft side and has a radial thickness equal to or larger than a radial thickness of the first permanent magnet.

Abstract: An axle assembly having an electric motor module and a method of assembly. The electric motor module may include a motor housing, a coolant jacket that may be received in the motor housing, and stator windings that may be disposed in the coolant jacket. A mounting flange of a differential carrier may receive a portion of the coolant jacket.

Abstract: An electrical machine includes a rotor including windings circumferentially spaced apart by rotor wedges. The electrical machine includes a rotor end plate mounted to the rotor. The rotor end plate includes an annular end plate body with an interior surface and axially opposed exterior surface. The interior surface includes a cavity for engaging the rotor. The interior surface has a base that is bounded by an inner rim and an outer rim radially opposite the inner rim. The interior surface is free of anti-rotation projections extending axially therefrom. The outer rim is free of anti-rotation features extending radially inward therefrom.

Abstract: The hand machine tool according to the invention has an integrated tool or a tool holder 2 to receive a tool 4. An electric motor 5 serves to drive the tool 4 or the tool holder 2. A battery pack 18 for supplying power to the electric motor 5 can be pushed into a guide 23 in a first direction. A plurality of electrical contacts 31 for contacting counter contacts 32 of the battery pack 18 are disposed in a contact holder 36. Wires 40, which are connected in each case to one of the electrical contacts 31, have cores which extend in a wave-like manner in the first direction 28 adjacent to the electrical counter contact 32.

Abstract: A vibration actuator, includes: a movable body including a magnet; a fixing body including a coil; and an elastic support portion supporting the movable body, in which: the fixing body includes: a first fixing body disposed on one side of a vibration direction so as to cover the movable body, and a second fixing body that is bonded to the first fixing body and being configured to accommodate the movable body in such a way that the movable body is capable of vibrating, in which: the elastic support portion is a plate-shaped elastic body that includes one end portion fixed to the movable body and is provided to protrude from an outer periphery of the movable body in a radial direction, and another end portion of the elastic support portion is fixed while being sandwiched between the first fixing body and the second fixing body.

Abstract: A motor includes a rotor including a rotation axis; a stator including coils; a cylindrical housing including an opening portion; busbars including busbar connecting portions; terminal pins including terminal connecting portions in a first direction orthogonal to an axial direction; a terminal support holding the terminal pins, wherein the housing has an insertion hole that opens towards an axial-direction one end side; the terminal support includes a protruding portion inserted into the insertion hole; one of the protruding portion and the insertion hole includes a fitting portion fitted to the other of the protruding portion and the insertion hole, and a guiding portion positioned on an insertion-end side of the fitting portion; and, in the guiding portion, a side surface on a side of the first direction is inclined in a direction opposite to the first direction with increasing distance from an open end of the insertion hole.

Abstract: A concrete vibrator motor includes a motor assembly that provides actuation and a cage assembly that surrounds the motor assembly to shield it and provide one or more operator handles. The motor assembly includes a motor housing, a motor pod, and a plurality of brushes that are used to secure the motor pod within the motor housing. The cage assembly includes a pair of endcaps and handles arranged beneath the endcaps. The endcaps are configured to inhibit fluid ingression into the motor housing while permitting air circulation between the ambient environment outside of the motor housing and within the motor housing. Thus, the motor assembly may intake air into the motor housing and exhaust air therefrom without contamination from the ambient environment.

Abstract: An electric motor including a rotor, a stator disposed adjacent to the rotor, and a brake mechanism. The stator is configured to cause a rotational movement of the rotor during operation of the electric motor and the brake mechanism is configured to selectively maintain a stationary rotational position of the rotor against a force exerted by an external source.

Abstract: A motor includes a stator unit and a rotor rotatable relative to the stator unit. The stator unit includes a stator, a resin portion, a support portion, and an annular recess. The stator includes a stator core, an insulator, and a conducting wire wound around the stator core with the insulator interposed therebetween. The resin portion covers at least part of the stator. The support portion supports the stator. At an end portion of the stator unit on one side in an axial direction, the recess is recessed toward another side in the axial direction. The resin portion is positioned further in a radially outer direction than the recess. The rotor includes an annular projection extending toward the other side in the axial direction. At least part of the projection is accommodated in the recess.

Abstract: Dynamo-electric machine (10) has cylindrical frame (11), cylindrical stator (12) fixed to an inside of the frame (11), cylindrical rotor (13) provided inside the stator (12) such that gap (G) is formed between the rotor (13) and the stator (12), rotation shaft (14) fixed to the rotor (13) so as to penetrate an inside of the rotor (13), and bracket (15) fixed to the frame (11) and rotatably supporting the rotation shaft (14). The stator (12) has duct (12a) radially formed at a middle portion in an axial direction of the stator (12) and communicating with the gap (G). The frame (11) has first supply opening (16) through which cooling air flow (1) is supplied in the frame (11) at axial direction both end sides of the frame (11), and second supply opening (17) through which cooling air flow (1) is supplied to the duct (12a) of stator (12).

Abstract: A rotor is located around an outer periphery of a rotation shaft of a motor and rotates together with the rotation shaft. The rotor includes magnetic steel plates laminated in an axial direction and including a through-hole group passing therethrough in the axial direction. The through-hole group includes through-holes each including, as a central line, an imaginary line extending in the radial direction and having an arcuate shape extending from the central line to both sides and radially outward. The through-holes are arranged in the radial direction. Among the through-holes, a radius of curvature of an arcuate radially inner side surface of the radially innermost through-hole is the smallest, and/or a radius of curvature of an arcuate radially outer side surface of the radially outermost through-hole is the largest.

Abstract: A starter assembly includes a multi-phase brushless electric motor including a stator, a rotor disposed on a rotatable shaft, and a motor endcap disposed at a first end of the stator. An electronic commutator assembly includes a sensing circuit, a control electronics subassembly, a power electronics subassembly and a heat sink. The sensing circuit is disposed adjacent to the second end of the rotatable shaft. The control electronics subassembly, the power electronics subassembly and the heat sink are disposed on disk-shaped devices arranged in a stacked configuration orthogonal to the axis defined by the rotatable shaft. The control electronics subassembly is disposed adjacent to the sensing circuit, and the power electronics subassembly is disposed adjacent to the control electronics subassembly. The control electronics subassembly is interposed between the power electronics subassembly and the sensing circuit. The heat sink is disposed adjacent to the power electronics subassembly.

Abstract: The invention relates to the field of electrical engineering, in particular the design of linear electric motors for submersible installations with a plunger pump, and used for oil extraction. The technical result is to increase the durability of the submersible electric motor and the efficiency of its operation. The stator consists of a cylindrical housing, within which are installed magnetically conductive cups incorporating armature coils and support elements separating the groups of cups, whereby the inner diameter of which is less than the inner diameter of the magnetically conductive cups. On the inner surface of the support elements, grooves are provided, the depth of which is more than half the difference between the inner diameters of the magnetically conductive cups and the support elements. Moreover, the magnetically conductive cups and the support elements are installed in a housing with a radial clearance and are attached therein by fastening elements.

Abstract: Provided is a motor which includes a housing and a stator disposed in the housing and a rotor disposed in the stator and a busbar disposed on one side of the stator, wherein the stator includes a stator core and a coil wound around the stator core and an insulator disposed between the stator core and the coil, the insulator includes a first insulator and a second insulator wherein the busbar includes a guide, wherein the guide is disposed between a first insulator and a second insulator.

Abstract: An electromagnetic rotating motor system that comprise of a grooved wheel with one or more permanent magnets tangentially embedded in a horse-shoe pattern within the groove around the wheel rim with similar poles pointing in the same direction and wherein induction coils or electromagnets are positioned to fit tangentially between the permanent magnet(s) in the groove with the pole axis of the electromagnet parallel to that of the permanent magnets and with the coiling and powering made such that it generates magnetic poles that are similarly aligned to the poles of the permanent magnets such that when current is passed through the coil, the poles of the electromagnet and the permanent magnet repel each other forcing the wheel holding the magnets to rotate away from the coil.

Abstract: Rotating machinery includes a two-pole rotor, a stator core with seventy-two slots, and three-phase armature windings, as an example. The armature winding has two phase belts per phase. The phase belt includes a first parallel winding and a second parallel winding which are arranged in the stator slots as top coils and bottom coils. When a circumferential mean position of all top coils and bottom coils included in the phase belt is defined as a phase belt center, an arrangement of the first and second parallel windings in the phase belt, as viewed in order of proximity to the phase belt center, is such that the first and second parallel windings are arranged in order of second/first/second/first/first/second/first/second/first/second/second/first parallel windings as the top coils, and the first and second parallel windings are arranged in order of first/second/second/first/second/first/first/second/first/second/second/first parallel windings as the bottom coils connected to the top coils.

Abstract: An electric motor includes a rotor rotatable about a center axis; and a rotor carrier including an outer circumferential surface having a varying diameter defined by radially inner surface sections and radially outer surface sections. The radially outer surface sections are bonded to an inner circumferential surface of the rotor by an adhesive. A hybrid module configured for arrangement in the torque path upstream from a transmission and downstream from an internal combustion engine includes the electric motor and a torque converter including a front cover. The rotor carrier is fixed to the front cover.

Abstract: A magnetic bearing supports an object to be supported in a noncontact manner by means of a composite electromagnetic force of first and second electromagnets. A processor-based controller causes a first current and a second current to be controlled according to the following equations, i 1 = g 0 - ax g 0 ? ( i b + i d ) ( 1 ) i 2 = g 0 + ax g 0 ? ( i b - i d ) ( 2 ) where i1 is the first current flowing to the first electromagnet, i2 is the second current flowing to the second electromagnet, id is a control current, ib is a bias current, g0 is a reference gap length, x is a displacement amount of the object to be supported with respect to a center position, and a is a predetermined correction coefficient.