Abstract: Gas turbine engines include an engine frame defining an inner radial surface, a shaft rotatably mounted in the engine frame along a longitudinal axis, and an electric machine that includes a rotor coupled to the shaft and a stator coupled to the engine frame and defining an outer radial surface. In some gas turbine engines, the engine frame includes inlet and outlet fluid passages, each extending to a portion of the inner radial surface. The portion of the inner radial surface of the engine frame is spaced from the outer radial surface of the stator to form an annular fluid passage around the stator of an electric machine. The annular fluid passage is configured to direct a cooling fluid around the stator to remove heat from the stator. Some gas turbine engines include two or more positioning keys configured to fix the stator relative to the engine frame.

Abstract: A stator core support device according to an embodiment includes plural types of support members that support a stator core on a stator frame disposed radially outward. These support members are combined so as to form a closed circuit portion. Then, an insulating part for electrically insulating part of the closed circuit portion is provided.

Abstract: An apparatus, according to one embodiment, includes: a support plate, a stator, a rotor sub-assembly, and at least one isolation mount coupled between the support plate and the stator. The isolation mount is for reducing transfer of vibration from the stator to the support plate. Moreover, the stator is coplanar with the support plate. The rotor sub-assembly includes a magnet, and a hub rotatably fixed relative to the magnet. The rotor sub-assembly is also configured to rotate relative to the support plate and the stator. Other systems, methods, and computer program products are described in additional embodiments.

Abstract: An apparatus, according to one embodiment, includes: a support plate, a stator, and a stator support arm. The stator support arm has a first end that is coupled to the support plate, and extends from the support plate to the stator. Moreover, the stator is coplanar with the support plate. The apparatus further includes at least one isolation mount, and a rotor sub-assembly. The isolation mount is coupled between a second end of the stator support arm and the stator for reducing transfer of vibration from the stator to the stator support arm. The rotor sub-assembly includes a magnet, and a hub rotatably fixed relative to the magnet. Furthermore, the rotor sub-assembly is configured to rotate relative to the support plate and the stator. Other systems, methods, and computer program products are described in additional embodiments.

Abstract: A breathing assistance apparatus has a pressurised gases source featuring a lightweight impeller with a plastic shaft. The impeller is shroudless. The plastic shaft is supported within the stator by a bearing structure. A resilient motor mount couples the stator and the housing and provide compliance and/or damping for the motor.

Abstract: A motor for a laundry appliance includes a drive shaft coupled to a drum at a first end. The rotor frame is coupled proximate the second end of the drive shaft, where the rotor frame includes at least one polymeric material. A central hub includes a core and a perimetrical ring that extends circumferentially around the core. A plurality of recesses are defined within a planar surface of the perimetrical ring, wherein a portion of the polymeric material is received within the plurality of recesses to secure the rotor frame to the central hub.

Abstract: Embodiments of the invention are related generally to electromagnetic machines and, more particularly, to a suspension system and related methods for the attachment of the stator core of an electromagnetic machine to a surrounding frame or enclosure. In one embodiment, the invention provides a system for supporting a stator core of an electromagnetic machine, the system comprising: a rigid frame structure including: an upper portion; and a lower portion beneath the upper portion; a first plurality of wire rope members, each having a first end and a second end; and a first plurality of attachment devices for affixing at least one of the first end or the second end of each of the first plurality of wire rope members to the upper portion.

Abstract: A locking structure for a stator core that locks the stator core having a circular outer circumference into an inner circumference of a cylindrical housing includes a first cut-out formed in an outer circumference of the stator core and a second cut-out formed in an inner circumference of the housing. The locking structure also includes a key interposed between the first and second cut-outs.

Abstract: The invention relates to an electric machine, comprising a rotor (8; 50; 76) and a stator (9; 29; 77), wherein the rotor (8; 50; 76) and/or the stator (9; 29; 77) comprise at least one laminated core (2; 11; 32; 72) having a substantially rectangular cross-section, wherein the laminated core (2; 11; 32; 72) comprises a sheet metal strip (1), wherein the sheet metal strip (1) is wound in a coil shape.

Abstract: A generator is provided comprising: a frame; a stator core comprising laminations; and clamping structure to axially clamp the laminations together. The clamping structure may comprise: a plurality of first finger plates engaging a first end of the stator core; a first spacer plate associated with the first finger plates and including a plurality of spaced apart first recesses; a plurality of first engagement structures, each comprising a bolt and a corresponding slidable bushing; a first spring ring in engagement with the first engagement structures; and first load-applying structure coupled to the frame to imparts a load to the first spring ring.

Abstract: A stator arrangement for an electromechanical transducer is provided. The stator arrangement includes a base structure, a coil holder, a coil mounted at the coil holder; and a flexible element connecting the base structure to the coil holder flexibly relative to each other. Further, an electromechanical transducer is provided that includes the above-mentioned stator arrangement and a rotor arrangement rotatable relative to the base structure around an axial direction. Still, further, a wind turbine is provided that includes the above-mentioned electromechanical transducer as a generator.

Abstract: A rotor disk for an electric motor including a shaft hole for receiving a shaft of the electric motor, a set of positioning holes around the shaft hole, each configured to receive a positioning pin. The shaft hole and the set of positioning holes are positioned in the rotor disk such that when the rotor disk is set to a rotated position with respect to another similar rotor disk, and the shaft and the positioning pins are penetrated to the respective holes of the two rotor disks, the disks cause a pressing force to the shaft.

Abstract: A rotor for an electric motor includes: an engagement portion formed in a groove shape in an outer periphery of a rotor shaft; and an annular ring member that is attached to the engagement portion such that an elastic force acting in a direction for clamping the rotor shaft is generated in order to restrict movement of the rotor core in a single direction along an axis of the rotor core. An outer diameter of the rotor shaft in the engagement portion increases steadily away from the rotor core.

Abstract: An electric motor includes a stator including stator steel core (11) around which a coil is wound; a rotor which includes rotating body (30) that holds a plurality of permanent magnets (32) in the circumferential direction to face the stator, and shaft (16) that fastens rotating body (30) so as to penetrate the center of rotating body (30); a bearing (15) for supporting shaft (16); and bracket (17) for fixing bearing (15), wherein dielectric layer (50) is provided between shaft (16) and the outer periphery of rotating body (30).

Abstract: A rotor is provided with a rotor core, a shaft fastening hole provided at the center of the rotor core, and magnets provided to the outer circumferential portion of the rotor core. Circular arc slits are formed at intervals on double concentric circles, respectively, so as to be located around the shaft fastening hole of the rotor core. The slits are arranged in such a manner that the outside slits on the outer circle are each located so as to block the portions located in the intervals between adjacent inside slits on the inner circle.

Abstract: Disclosed is a washing machine which includes a tub which holds laundry, a drum which is disposed in and rotates within the tub, a stator which is fixed to the tub, and a rotor which is fixed to the drum. The rotor includes a frame, a bushing installed on the frame, a motor shaft having an end which is inserted in and fixed to the bushing, a bearing interposed between the motor shaft and the tub, and at least one guide disposed between the motor shaft and the bushing at an end of the bushing.

Abstract: The present invention relates to a miniature electrical drive (1), in particular a rotating field drive with permanent magnet excitation, having a stator (2) and a soft-magnetic return path element (6) which cylindrically surrounds the stator (2) and has a multiplicity of sheet-metal laminates (22) which are in the form of annular disks and are arranged in layers to form a cylindrical laminated core (20). The sheet-metal laminates (22) in the laminated core (20) are held prestressed exclusively with a force fit and in an interlocking manner in the axial and radial directions, and without adhesive or integral joint means such as this, in a supporting sleeve (24) which coaxially surrounds said sheet-metal laminates (22).

Abstract: A rotor for an electric machine having a number of poles includes a shaft that extends along a portion of an axis and defines an outer surface. A first core portion is formed as a single inseparable component and includes a first portion that extends from the outer surface to a first outside diameter to define a first thickness, and a second portion spaced axially from the first portion that includes a reduced back portion that extends from an inside diameter to the first outside diameter to define a second thickness that is less than the first thickness. A second core portion is connected to the first core portion and includes a second outside diameter that is substantially the same as the first outside diameter.

Abstract: An electric motor, including stator core, a shaft, and a shock-absorbing connector including multiple brackets, and a rubber pad. The stator core and the shaft are disposed between the brackets, the shaft is nested in the stator core but not directly mechanically-connected thereto, tightly abuts against the bracket, and passes through the stator core. A through hole is disposed in the stator core and parallel to the shaft, and the rubber pad is received in the through hole.

Abstract: A motor, including at least a stator core (1), a shaft (2) nested around the stator core (1), and shock-absorbing connector, wherein the shock-absorbing connector is disposed between the stator core (1) and the shaft (2) so as to absorb and buffer unbalanced counterforces acting on the stator core (1) and to dampen the shocks experienced by the shaft (2) and reduce the overall noise generated by the motor.

Abstract: A mounting structure for a motor includes a tube and a stator. The tube includes at least an axial positioning block and at least a radial mounting block. The stator defines an axis hole for receiving a portion of the tube therein, and at least a positioning groove in an inner surface thereof. One of the stator and the tube is rotated from an unlock position, where the at least an axial positioning block is located just above the at least a positioning groove, to a locked position, where a bottom surface of the at least an axial positioning block abuts a top surface of the stator and the at least a radial mounting block engages with the inner surface of the stator.

Abstract: A rotor assembly comprising a rotor for rotating in a magnetic field of a motor, the rotor comprising a main rotor cavity and a plurality of first holes; two side boards, each side board comprising a sleeve-shaped main side board body and a disc-shaped outer side board body, the side board body having a main side board cavity, and the outer side board body being perforated by a plurality of second holes; two damping elements each damping element comprising a main damping element cavity; a plurality of rubber sleeves, each rubber sleeve having a rubber sleeve lip; and a plurality of third holes; an axle; and a plurality of positioning pins.