Abstract: A lamination for an electrical machine lamination stack includes a body defining a plurality of winding slots on an inner diameter thereof and at least one inner diameter cleat aperture defined by the body configured to receive a cleat in an unlocked position and to interfere with the cleat when the cleat is transitioned to a locked position within the inner diameter cleat aperture such that a plurality of laminations can be stacked and locked together by the cleat.

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: A resistor pack assembly comprising: a positive rail having a circular face; a negative rail having an inner circular face and an outer circular face located radially outward from inner circular face; an insulator ring having a first circular face and a second circular face opposite first circular face, the second circular face contacts the outer circular face of the negative rail; a first DC bus bar electrically connected to the insulator ring; a second DC bus bar electrically connected to negative rail; and a cylindrical suppression resistor having a first flat surface and a second flat surface opposite the first flat surface, the cylindrical suppression resistor is located radially inward of the insulator and axially between the positive rail and negative rail, wherein the first flat surface contacts the circular face of the positive rail and the second flat surface contacts the inner circular face of the negative rail.

Abstract: A rotor of a generator includes a plurality of permanent magnets and at least one magnetic band. The plurality of permanent magnets is arranged about an axis such that magnetic poles of the plurality of permanent magnets are radially oriented in regard to the rotor. The at least one magnetic band is disposed on a surface of the rotor such that magnetic poles of the magnetic band are between 1 degree and 90 degrees from being axially oriented in regard to the rotor.

Abstract: A wedge for securing windings in a slot in the rotor poles of a rotor core of an electrical machine includes an elongate wedge body extending in an axial direction along a longitudinal axis. The wedge body includes layers perpendicular to the axial direction. The layers vary in electrical conductivity from layer to layer to inhibit eddy currents within the wedge body.

Abstract: A method of manufacturing a rotor of an electric motor or an electric generator includes positioning a plurality of amortisseur bars and using additive manufacturing to place electrically conductive material. More specifically, positioning the amortisseur bars may include circumferentially positioning the bars around a rotor stack and using additive manufacturing to place electrically conductive material may include forming a non-solid pattern of electrically conductive material, such as a pattern of electrically conductive traces, across opposite axial ends of the rotor stack to electrically interconnect an amortisseur circuit.

Abstract: A multiphase switched flux electric machine including a rotary drive shaft, a ferromagnetic salient pole rotor assembly operably coupled to the rotary drive shaft having a plurality of rotor teeth defining a circumferential outer periphery of the rotor assembly, and a stator assembly. The stator assembly includes a ferromagnetic stator core, a plurality of permanent magnets positioned substantially equidistant about an inner circumference of the stator core, a plurality ferromagnetic stator teeth mounted to the permanent magnets on the stator core with distal ends forming an inner periphery of the stator assembly, the inner periphery proximate the outer axial periphery of the rotor assembly separated by an air gap; and a plurality of stator coils with an axial active portions disposed within selected teeth of the plurality of ferromagnetic stator teeth.

Abstract: A rectifier assembly according to an example of the present disclosure includes, among other things, a first housing and a second housing extending along an assembly axis, the first housing surrounding a pair of electrical rings. At least one spring strip includes a first spring strip portion transverse to a second spring strip portion, the second spring strip portion to bias diodes against an inner periphery of the pair of electrical rings. The second housing includes at least one connection terminal for receiving a wire from an exciter rotor, the at least one connection terminal including a screw threaded area which receives a bolt holding the first spring strip portion. A generator and a method of assembling a rectifier assembly are also disclosed.

Abstract: A lamination for an electrical machine lamination stack includes a body defining a plurality of winding slots on an inner diameter thereof and at least one inner diameter cleat aperture defined by the body configured to receive a cleat in an unlocked position and to interfere with the cleat when the cleat is transitioned to a locked position within the inner diameter cleat aperture such that a plurality of laminations can be stacked and locked together by the cleat.

Abstract: A pump assembly is provided and includes a housing having first, second and third pairs of fluid openings and first, second and third rotary pumps, which are co-rotatable about a common longitudinal axis defined through the housing to drive fluid flow relative to the first, second and third pairs of fluid openings, respectively. The first rotary pump includes an input member receptive of rotational drive energy for the first, second and third rotary pumps.

Abstract: A pump assembly is provided and includes a housing having first, second and third pairs of fluid openings and first, second and third rotary pumps, which are co-rotatable about a common longitudinal axis defined through the housing to drive fluid flow relative to the first, second and third pairs of fluid openings, respectively. The first rotary pump includes an input member receptive of rotational drive energy for the first, second and third rotary pumps.