Abstract: A refrigeration system for electronics includes a compressor disposed on a main line and configured to compress a refrigerant in the refrigeration system and a condenser disposed downstream of the compressor on the main line. An evaporator line is in fluid communication with the main line downstream of the condenser and has an evaporator configured to receive heat into the refrigerant from an external heat source. The system also includes an immersion line in fluid communication with main line downstream of the condenser. The immersion line includes an immersion cooling container that is configured to at least partially house electronics such that the electronics are in direct fluid communication with the refrigerant to cool the electronics.

Abstract: A circuit board arrangement includes a deflector configured to guide flow over an electronic component on a circuit board disposed in an air flow. A method for thermal management of a circuit board includes modifying an air flow over the circuit board to increase speed or direction the air flow over a component of the circuit board using a deflector.

Abstract: An electronics cooling arrangement includes a housing configured to contain a coolant and an electronic device disposed within the housing. The electronic device has a passageway with at least one inlet and at least one outlet and is configured to allow fluid flowing between the inlet and the outlet to cool the electronic device.

Abstract: A circuit board arrangement includes a deflector configured to guide flow over an electronic component on a circuit board disposed in an air flow. A method for thermal management of a circuit board includes modifying an air flow over the circuit board to increase speed or direction the air flow over a component of the circuit board using a deflector.

Abstract: An immersion cooled electronics arrangement includes a sealed housing, a coolant contained within the sealed housing, and an electronic device disposed within the sealed housing. The sealed housing has a variable-volume alterable between at least a first volume and a second volume in response to changes in pressure within the sealed chamber to reduce the rate of pressure change in the sealed housing over time form heating of the coolant.

Abstract: An energy storage system includes a sealed housing defining an interior space and a plurality of cells arranged within the interior space of the housing. A cooling liquid submerges each of the cells. The cooling system is positioned within the sealed housing configured to actively and passively cool and heat each of the cells.

Abstract: A toroidal traction drive has an axial loading system with a primary loading component and a non-linear cam roller loading component.

Abstract: A toroidal traction drive has an axial loading system with a primary loading component and a non-linear cam roller loading component.

Abstract: A permanent magnet generator comprises a stator core, a plurality of windings situated on the stator core, and a plurality of stress elements. The stress elements apply or relieve mechanical stress in response to control signals from a generator controller, thereby increasing or reducing voltage across the stator windings.

Abstract: A method of forming a flux regulated machine includes winding stator windings into slots in an outer core. The outer core is formed to have a plurality of radially inwardly extending tooth pieces that are circumferentially spaced, and which define the slots. Further, control coils are wound around an inner core. Then, the inner core is inserted within the outer core such that the tooth pieces contact the inner core, and such that the control coils close off the slots at a radially innermost position. A flux regulated permanent magnet machine generally made according to this method is also disclosed.

Abstract: A method of forming a flux regulated machine includes winding stator windings into slots in an outer core. The outer core is formed to have a plurality of radially inwardly extending tooth pieces that are circumferentially spaced, and which define the slots. Further, control coils are wound around an inner core. Then, the inner core is inserted within the outer core such that the tooth pieces contact the inner core, and such that the control coils close off the slots at a radially innermost position. A flux regulated permanent magnet machine generally made according to this method is also disclosed.

Abstract: A permanent magnet generator comprises a stator core, a plurality of windings situated on the stator core, and a plurality of stress elements. The stress elements apply or relieve mechanical stress in response to control signals from a generator controller, thereby increasing or reducing voltage across the stator windings.

Abstract: An inductive electrical device comprises multiple laminations, each lamination comprising: a generally planar electrically nonconductive substrate that has a central axis normal to its plane, a first surface and a second surface; at least one electrically conductive layer pattern along the first surface in the form of a narrow strip that starts from a first point displaced from the central axis and extends along the first surface about the central axis through a first angle of rotation to a second point; a least one electrically conductive layer pattern along the second surface in the form of a narrow strip that starts from the second point and extends along the second surface about the central axis through a second angle of rotation to at least the first point; an electrically conductive coupling region passing through the substrate proximate the second point that couples the electrically conductive layer pattern along the first surface to the electrically conductive layer pattern along the second surface; w

Abstract: An aircraft tug includes a tow bar which extends from a chassis, the tow bar operable to autonomously attach with an aircraft main landing gear assembly and transfer electrical power therebetween.

Abstract: An inductive electrical device comprises multiple laminations, each lamination comprising: a generally planar electrically nonconductive substrate that has a central axis normal to its plane, a first surface and a second surface; at least one electrically conductive layer pattern along the first surface in the form of a narrow strip that starts from a first point displaced from the central axis and extends along the first surface about the central axis through a first angle of rotation to a second point; a least one electrically conductive layer pattern along the second surface in the form of a narrow strip that starts from the second point and extends along the second surface about the central axis through a second angle of rotation to at least the first point; an electrically conductive coupling region passing through the substrate proximate the second point that couples the electrically conductive layer pattern along the first surface to the electrically conductive layer pattern along the second surface; w

Abstract: A heat transfer device includes at least one laminated structure. Each laminated structure includes: a graphite sheet core that has a pattern of corrugations over at least a portion thereof; a graphite sheet first outer layer with an inner surface that contacts a first surface of the core; and a graphite sheet second outer layer with an inner surface that contacts a second surface of the core.

Abstract: An electric circuit includes a plurality of electric circuit elements. The circuit is prone to creating voltage spikes on a pair of spaced lines. A jumper line connects the pair of spaced lines. A thermoelectric element is connected on the jumper line such that the voltage spike will pass through a hot node on the thermoelectric element. A cool node of the thermoelectric element is positioned adjacent to components which require cooling.

Abstract: An aircraft tug includes a tow bar which extends from a chassis, the tow bar operable to autonomously attach with an aircraft main landing gear assembly and transfer electrical power therebetween.

Abstract: An aircraft tug includes a tow bar which extends from a chassis, the tow bar operable to autonomously attach with an aircraft main landing gear assembly.

Abstract: An electric circuit includes a plurality of electric circuit elements. The circuit is prone to creating voltage spikes on a pair of spaced lines. A jumper line connects the pair of spaced lines. A thermoelectric element is connected on the jumper line such that the voltage spike will pass through a hot node on the thermoelectric element. A cool node of the thermoelectric element is positioned adjacent to components which require cooling.