Gaseous emissions treatment structure and method for induction heating

    公开(公告)号:US10941686B2

    公开(公告)日:2021-03-09

    申请号:US16256654

    申请日:2019-01-24

    Abstract: An assembly for treating gaseous emissions has a substrate along which extend cells for the passage of emissions gas. Lengths of conducting wire are located in a set of the cells and an induction heating coil is used to generate a varying electromagnetic field, so as to inductively heat the lengths of conducting wire. The substrate body has a front for entry of flowing emissions gas to be treated into the substrate body and a back for exit of treated gaseous emissions gas. The lengths of conducting wire have projections extending from the front and/or back of the substrate body so that when inductively heated, the wire parts in the substrate body heat the surrounding substrate and the wire projections heat the flowing emissions gas directly.

    Method of winding
    27.
    发明授权

    公开(公告)号:US11328865B2

    公开(公告)日:2022-05-10

    申请号:US16289574

    申请日:2019-02-28

    Abstract: As wire is wound around and onto the surface of a former to form a coil, perturbations such as waves are introduced into turns of the coil, each perturbation being formed in a length of the wire less than the full length of a respective turn and projecting along the former surface, the perturbation having an initial shape and size. The coil is taken from the former and fixed in form. A surrounding jacket is radially collapsed onto the wire coil to uniformly press the coil against an internal compressible body in the course of which the overall diameter of the coil is reduced. Resulting stresses in the wire generated during the collapse are relieved by alteration of the perturbations from their initial shape and size to a subsequent shape and size.

    APPARATUS AND METHOD FOR GASEOUS EMISSIONS TREATMENT WITH RESISTIVE HEATING

    公开(公告)号:US20220082042A1

    公开(公告)日:2022-03-17

    申请号:US17477719

    申请日:2021-09-17

    Abstract: An assembly for treating gaseous emissions has a ceramic substrate body through which extend passages. The assembly has metal wires in selected ones of the passages, a first section of each wire electrically connected at one end thereof to an end of a second wire section and a distal end of the second section electrically connected to one end of a third wire section. The first and third wire sections are composed of a material having a lower electrical resistance than that of the second wire section. Part of each second wire section is located in a respective one of the selected passages.

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