METHOD AND APPARATUS FOR FORMING NON-BONDED REGIONS IN MULTI-LAYERED METALLIC ARMOR

    公开(公告)号:US20210101365A1

    公开(公告)日:2021-04-08

    申请号:US16548657

    申请日:2019-08-22

    Abstract: Disclosed herein is a method of forming a multi-layered metallic part. The method comprises stacking at least two metallic layers, each made of a metallic material having a ductility, to form a multi-layered metallic assembly. The method also comprises interposing a diffusion-bond preventing element directly between adjacent ones of the at least two metallic layers of the multi-layered metallic assembly. The method further comprises diffusion bonding the at least two metallic layers to each other at locations other than a location contiguous with the diffusion-bond preventing element to produce a multi-layered metallic part having a non-bonded region between the at least two metallic layers at the location of the diffusion-bond preventing element.

    Induction molding for parts having thermoplastic portions

    公开(公告)号:US10792842B2

    公开(公告)日:2020-10-06

    申请号:US15791683

    申请日:2017-10-24

    Abstract: Systems and methods are provided for molding systems that have a low thermal mass. One embodiment is a first tool that includes a first frame. The first frame includes a first set of plates of magnetically permeable material, and a material disposed between plates of the first set. The first tool also includes a first set of induction coils that are disposed within the first frame and that generate a first electromagnetic field, and a first susceptor that extends from the first set of plates. The first susceptor generates heat in response to the first electromagnetic field. The first tool further includes a mold that extends from the first susceptor and receives heat via conductive heat transfer from the first susceptor. Each plate of the first set is thinner than a skin depth at which the first electromagnetic field would generate an electrical induction current.

    APPARATUS AND METHOD FOR MAGNETIC FIELD COMPRESSION

    公开(公告)号:US20190115131A1

    公开(公告)日:2019-04-18

    申请号:US15784831

    申请日:2017-10-16

    CPC classification number: H01F6/06 G01R33/381 G01R33/3815 H01F6/04 H01F41/048

    Abstract: An apparatus for magnetic field compression includes a plurality of tubes of different dimensions. Each smaller tube extends within a larger tube and each tube includes an electrically conductive material for generating a magnetic field in response to electric current flowing in the conductive material. A longitudinal slot is formed in each tube. The longitudinal slot in each tube is aligned to form an aperture in which the magnetic field is compressed or has a highest magnetic flux in the aperture in response to the electric current flowing in the conductive material of each tube.

    SCRAMJETS AND ASSOCIATED AIRCRAFT AND METHODS

    公开(公告)号:US20190032603A1

    公开(公告)日:2019-01-31

    申请号:US15665227

    申请日:2017-07-31

    Abstract: A scramjet includes a converging inlet, a combustor configured to introduce a fuel stream into an air stream in a combustion chamber and to combust the fuel air mixture stream to create an exhaust stream, and a diverging exit nozzle configured to accelerate the exhaust stream. The combustor includes a fuel injection system including at least one arcjet. A method of creating thrust for an aircraft includes compressing a supersonic incoming air stream in a converging inlet, injecting a fuel stream into the air stream in a combustion chamber to create a fuel air mixture stream, igniting the fuel air mixture stream to create an exhaust stream, and exhausting the exhaust stream from a diverging exit nozzle. The injecting the fuel stream into the air stream includes injecting the fuel stream at a fuel speed sufficient to create shear between the fuel stream and the air stream.

    ROTATING MACHINE HAVING MAGNETICALLY ACTUATED PISTONS

    公开(公告)号:US20180358881A1

    公开(公告)日:2018-12-13

    申请号:US15617335

    申请日:2017-06-08

    Inventor: John R. Hull

    Abstract: A rotating machine is disclosed and includes a stator defining a circumference, a plurality of first magnet arrays, a rotor, and a first piston. The first magnet arrays are comprised of a plurality of discrete magnets arranged around the circumference of the stator in a first magnetic pattern. The rotor is rotatable about an axis of rotation and defines a main body. The main body defines a first passageway. The first piston includes a plurality of first magnetic elements and is actuated within the first passageway of the rotor. The plurality of discrete magnets are arranged in the first magnetic pattern and are positioned to interact with the magnetic elements of the first piston to create a first magnetic force as the rotor rotates about the axis of rotation. The first magnetic force represents a first amount of force required to actuate the first piston.

    Apparatus and method for in-situ charging of superconductors

    公开(公告)号:US10084366B2

    公开(公告)日:2018-09-25

    申请号:US14630776

    申请日:2015-02-25

    Inventor: John R. Hull

    CPC classification number: H02K55/00 H02K55/04 Y02E40/62 Y02E40/625

    Abstract: An apparatus and method for charging a superconductor, such as a high temperature superconductor (HTS), in-situ, including a superconductor that is magnetized by a magnet. A surface area of the magnet is smaller than a surface area of the superconductor and the magnet scans the surface area of the superconductor to magnetize the superconductor one portion at a time. An additional compression superconductor may be used to compress the magnetic flux from the magnet such that the magnetic flux exits the compression superconductor via an aperture on the surface of the compression superconductor and then impinges the surface of the superconductor being charged. The superconductor is assembled in a machine prior to being magnetized and may be cooled prior to magnetization.

    SYSTEM AND METHOD FOR CRYOGENIC COOLING OF ELECTROMAGNETIC INDUCTION FILTER

    公开(公告)号:US20180270988A1

    公开(公告)日:2018-09-20

    申请号:US15984876

    申请日:2018-05-21

    Abstract: Provided is a cooling device, and methods of fabricating and operating such cooling devices, for electromagnetic induction (EMI) filters. Specifically, a cooling device is provided which comprises a housing enclosing the electromagnetic induction filter. The housing may comprise one or more of the following: one or more exterior chambers, one or more central flow channels, and peripheral flow channels. The one or more exterior chambers surround an exterior surface of the EMI filter. The one or more central flow channels extend the length of the center of the EMIR filter. The peripheral flow channels extend the length of the exterior of the electromagnetic induction filter. The peripheral flow channels may be disposed between one or more exterior chambers and open into the one or more exterior chambers. The one or more central flow channels, the peripheral flow channels, and the one or more exterior chambers are interconnected.

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