Abstract: A method of manufacturing a stator assembly for an electrified rotary system includes attaching a first tooth and a second tooth to an inner support to define a first construction. The first tooth and the second tooth extend radially away from the inner support in the first construction. The method also includes attaching a winding about the first tooth of the first construction to define a second construction. Furthermore, the method includes applying, with a fixture, a preload at a joint between the inner support and the first tooth of the second construction. Moreover, the method includes attaching an outer support to a first outer radial end of the first tooth and to a second outer radial end of the second tooth while applying the preload to define a third construction.

Abstract: Embodiments of laminated stator cores suitable for usage in high temperature applications are provided, as are embodiments of methods for manufacturing high temperature laminated stator core. In one embodiment, the method includes obtaining a plurality of coated laminates each comprising a laminate over which a coating precursor layer is formed. The coating precursor layer contain inorganic dielectric particles having a softening point. The plurality of coated laminates are arranged in a laminate stack, which is then fired at temperatures equal to or greater than the softening point of the inorganic dielectric particles. During firing, a compressive force is applied to the laminate stack sufficient to consolidate the inorganic dielectric particles into a plurality of coherent interlaminate dielectric layers electrically insulating and bonding together the plurality of coated laminates as the high temperature laminated stator core.

Abstract: A method of manufacturing a stator assembly for an electrified rotary system includes attaching a first tooth and a second tooth to an inner support to define a first construction. The first tooth and the second tooth extend radially away from the inner support in the first construction. The method also includes attaching a winding about the first tooth of the first construction to define a second construction. Furthermore, the method includes applying, with a fixture, a preload at a joint between the inner support and the first tooth of the second construction. Moreover, the method includes attaching an outer support to a first outer radial end of the first tooth and to a second outer radial end of the second tooth while applying the preload to define a third construction.

Abstract: A vapor cycle compressor includes a controller section, a drive section in communication with the controller section, and a compression section operatively engaged with the drive section. The compression section includes: an inlet guide vane assembly, wherein the inlet guide vane assembly includes inlet vanes that are configured to adjust their angle of orientation; a first stage diffuser assembly downstream of the inlet guide vane assembly, wherein the first stage diffuser assembly includes first diffuser vanes that are configured to adjust their angle of orientation; a return channel assembly downstream of the first stage diffuser assembly, wherein the return channel assembly includes return channel vanes that are configured to adjust their angle of orientation; and a second stage diffuser assembly downstream of the return channel assembly, wherein the second stage diffuser assembly includes second diffuser vanes that are configured to adjust their angle of orientation.

Abstract: Embodiments of laminated stator cores suitable for usage in high temperature applications are provided, as are embodiments of methods for manufacturing high temperature laminated stator core. In one embodiment, the method includes obtaining a plurality of coated laminates each comprising a laminate over which a coating precursor layer is formed. The coating precursor layer contain inorganic dielectric particles having a softening point. The plurality of coated laminates are arranged in a laminate stack, which is then fired at temperatures equal to or greater than the softening point of the inorganic dielectric particles. During firing, a compressive force is applied to the laminate stack sufficient to consolidate the inorganic dielectric particles into a plurality of coherent interlaminate dielectric layers electrically insulating and bonding together the plurality of coated laminates as the high temperature laminated stator core.

Abstract: Embodiments of laminated stator cores suitable for usage in high temperature applications are provided, as are embodiments of methods for manufacturing high temperature laminated stator core. In one embodiment, the method includes obtaining a plurality of coated laminates each comprising a laminate over which a coating precursor layer is formed. The coating precursor layer contain inorganic dielectric particles having a softening point. The plurality of coated laminates are arranged in a laminate stack, which is then fired at temperatures equal to or greater than the softening point of the inorganic dielectric particles. During firing, a compressive force is applied to the laminate stack sufficient to consolidate the inorganic dielectric particles into a plurality of coherent interlaminate dielectric layers electrically insulating and bonding together the plurality of coated laminates as the high temperature laminated stator core.

Abstract: An airflow system may comprise a fan radially mounted on a motor with a first plurality of fins surrounding the motor disposed to provide airflow in a first direction, and a second plurality of fins surrounding the motor disposed to provide airflow in a second direction. A housing may surround the plurality of fins.

Abstract: Embodiments of a gas turbine engine actuation system are provided, as are embodiments of a high temperature actuator and methods for the manufacture thereof. In one embodiment, the gas turbine engine actuation system includes an actuated gas turbine engine component and a high temperature actuator, which has a rotor mechanically linked to the actuated gas turbine engine component and a stator surrounding at least a portion of the rotor. The stator includes, in turn, a coil support structure having a plurality of spokes extending radially therefrom. A plurality of pre-formed electromagnetic coils is circumferentially distributed about the coil support structure. Each of the plurality of pre-formed electromagnetic coils is inserted over at least one of the plurality of spokes in a radial direction. The stator further includes an inorganic dielectric material in which each of the plurality of pre-formed electromagnetic coils is at least partially embedded.

Abstract: A system and method are provided for controlling the movement of an aircraft engine cowl door between an open position and a closed position. The system includes an electric motor, at least one actuator, and an electrically operated brake. The actuator is coupled to the motor and is operable to move the cowl door between the closed and the open position. The electrically operated brake is coupled to the electric motor and the at least one actuator and is configured, upon being energized, to supply a unidirectional resisting torque load to the electric motor that does not prevent motor rotation.

Abstract: A fluid-powered thrust reverser actuation system includes electromechanical speed control to implement multiple mid-stroke speeds. The system may also be configured to implement two different operational modes—a normal operational mode and a rejected take-off operational mode.

Abstract: Embodiments of laminated stator cores suitable for usage in high temperature applications are provided, as are embodiments of methods for manufacturing high temperature laminated stator core. In one embodiment, the method includes obtaining a plurality of coated laminates each comprising a laminate over which a coating precursor layer is formed. The coating precursor layer contain inorganic dielectric particles having a softening point. The plurality of coated laminates are arranged in a laminate stack, which is then fired at temperatures equal to or greater than the softening point of the inorganic dielectric particles. During firing, a compressive force is applied to the laminate stack sufficient to consolidate the inorganic dielectric particles into a plurality of coherent interlaminate dielectric layers electrically insulating and bonding together the plurality of coated laminates as the high temperature laminated stator core.

Abstract: A motor cooling system is provided comprising an electric motor including a rotor having first and second axial ends, and a stator having first and second axial ends, a motor housing surrounding the motor including an air chamber extending around the motor and axially along the motor length, a motor enclosure enveloping the motor housing, and a cooling fan radially mounted to the motor enclosure and adapted to operatively cool said electric motor.

Abstract: An airflow system may comprise a fan radially mounted on a motor with a first plurality of fins surrounding the motor disposed to provide airflow in a first direction, and a second plurality of fins surrounding the motor disposed to provide airflow in a second direction. A housing may surround the plurality of fins.

Abstract: A system and method are provided for controlling the movement of an aircraft engine cowl door between an open position and a closed position. The system includes an electric motor, at least one actuator, and an electrically operated brake. The actuator is coupled to the motor and is operable to move the cowl door between the closed and the open position. The electrically operated brake is coupled to the electric motor and the at least one actuator and is configured, upon being energized, to supply a unidirectional resisting torque load to the electric motor that does not prevent motor rotation.

Abstract: A motor cooling system is provided comprising an electric motor including a rotor having first and second axial ends, and a stator having first and second axial ends, a motor housing surrounding the motor including an air chamber extending around the motor and axially along the motor length, a motor enclosure enveloping the motor housing, and a cooling fan radially mounted to the motor enclosure and adapted to operatively cool said electric motor.

Abstract: A drive system for a multi-phase electric machine with a permanent magnet rotor, the drive system may comprise conduction paths for each phase. Detectors on each of the conduction paths may determine electrical condition of the conduction path. At least one selectable interconnection path may be present between all of the conduction paths and at least one selectable interconnection path may be operable to connect all of the conduction paths together responsively to at least one of the detectors determining that the electrical condition of its respective electrical path is representative of a predetermined electrical fault condition so that heating of the rotor during continued rotation of the rotor is prevented.

Abstract: A drive system for a multi-phase electric machine with a permanent magnet rotor, the drive system may comprise conduction paths for each phase. Detectors on each of the conduction paths may determine electrical condition of the conduction path. At least one selectable interconnection path may be present between all of the conduction paths. The at least one selectable interconnection path may be operable to connect all of the conduction paths together responsively to one or more of the detectors determining that the electrical condition of its respective electrical path is representative of a predetermined electrical fault condition so that heating of the rotor during continued rotation of the rotor is prevented.