Abstract: An armature is presented. The armature includes an armature winding having a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils and comprise includes a first side portion and a second side portion. The armature further includes a first electrically insulating winding enclosure. Furthermore, the armature includes a second electrically insulating winding enclosure disposed at a radial distance from the first electrically insulating winding enclosure, wherein the armature winding is disposed between the first electrically insulating winding enclosure and the second electrically insulating winding enclosure. Moreover, the armature includes an electrically insulating coil side separator disposed between the first side portion and the second side portion of the plurality of coils of the armature winding. A superconducting generator including the armature and a wind turbine having such superconducting generator are also presented.

Abstract: An armature is presented. The armature includes an armature winding having a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils and comprise includes a first side portion and a second side portion. The armature further includes a first electrically insulating winding enclosure. Furthermore, the armature includes a second electrically insulating winding enclosure disposed at a radial distance from the first electrically insulating winding enclosure, wherein the armature winding is disposed between the first electrically insulating winding enclosure and the second electrically insulating winding enclosure. Moreover, the armature includes an electrically insulating coil side separator disposed between the first side portion and the second side portion of the plurality of coils of the armature winding. A superconducting generator including the armature and a wind turbine having such superconducting generator are also presented.

Abstract: An assembly for cooling an electrical coil winding having a first coil, a second coil, a first end turn and a second end turn is provided. The assembly includes a supply header; a return header; and a plurality of flow members coupled in flow communication to the supply header and the return header. The flow members are configured to channel a flow agent from supply header to the return header. Each the flow member of the plurality of flow members includes a first portion coupled to the first coil; a second portion coupled to the second coil; a first end portion coupled to the first end turn and coupled in flow communication to the first portion and the second portion; and a second end portion coupled to the second end turn and coupled in flow communication to the second portion.

Abstract: A rotor structure for an interior permanent magnet (IPM) electromotive machine is provided. The rotor structure may include at least one rotor lamination, which in turn may include at least one slot arranged to receive at least one permanent magnet. The slot divides the rotor lamination into a pole region and a yoke region. At least one bridge is arranged to connect the pole region to the yoke region at an outer edge of the lamination. The outer edge of the lamination is profiled along a segment of the bridge to define a concave curved profile for the bridge. The concave curved profile for the bridge allows to selectively size a thickness of the bridge to affect at least some electromagnetic and/or mechanical characteristic of the machine.

Abstract: A valve system for pressure exchanger tubes of an energy recovery system is provided. The valve system includes a valve housing, a flow distributor, a hollow spool and a sealing system. The valve housing may comprise a set of high-pressure ports and a set of low-pressure ports. The flow distributor allows the flow to and from the set of high-pressure ports and the set of low-pressure ports within the valve housing. The hollow spool may be configured to reciprocate axially in a radial clearance between the valve housing and the flow distributor. The hollow spool may connect the pressure exchanger tube in fluid communication with the high-pressure ports or the low-pressure ports. The sealing system may be provided within the valve housing for imparting substantial hydraulic balance to the hollow spool.

Abstract: A rotor structure for an interior permanent magnet (IPM) electromotive machine is provided. The rotor structure may include at least one rotor lamination, which in turn may include at least one slot arranged to receive at least one permanent magnet. The slot divides the rotor lamination into a pole region and a yoke region. At least one bridge is arranged to connect the pole region to the yoke region at an outer edge of the lamination. The outer edge of the lamination is profiled along a segment of the bridge to define a concave curved profile for the bridge. The concave curved profile for the bridge allows to selectively size a thickness of the bridge to affect at least some electromagnetic and/or mechanical characteristic of the machine.

Abstract: An X-ray tube anode assembly and an X-ray tube assembly are disclosed that include an X-ray target and a drive assembly configured to provide an oscillatory motion to the X-ray target. The drive assembly is configured to provide an oscillatory motion to the target assembly.

Abstract: An X-ray tube anode assembly and an X-ray tube assembly are disclosed that include an X-ray target and a drive assembly configured to provide an oscillatory motion to the X-ray target. The drive assembly is configured to provide an oscillatory motion to the target assembly.

Abstract: A rotor structure for an interior permanent magnet (IPM) electromotive machine is provided. The rotor structure includes at least one rotor lamination including a first group of slots and a second group of slots arranged to form a magnetic pole. The first group of slots may be arranged to form a magnetic flux along a direct axis of the magnetic pole resulting from the first and second group of slots. At least some of the first group of slots is arranged to receive a respective permanent magnet. The second group of slots is arranged to provide a separation for the magnetic flux from adjacent magnetic poles and lying along a quadrature axis of said magnetic pole. At least some of the second group of slots is arranged without a permanent magnet. The rotor structure further includes a magneto-mechanical barrier arranged to reduce a peak level of mechanical stress occurring by the first and/or the second group of slots and/or impede a flow of magnetic flux through the barrier.