PROCESS FOR IMPROVING THE REPEATABILITY OF A WELD

    公开(公告)号:US20230018963A1

    公开(公告)日:2023-01-19

    申请号:US17865728

    申请日:2022-07-15

    Abstract: A process is provided for welding an assembly of a first tubular component and a second tubular component, the first and second tubular components having first and second cylindrical portions, respectively. The process uses a pressing jig, a pressing tool, a welding jig and a welding head. The process includes: positioning the first tubular component with respect to the pressing jig; clamping the first tubular component against the pressing jig; freely fitting the second cylindrical portion into the first cylindrical portion, the two cylindrical portions being substantially coaxial; placing the second component with respect to the first cylindrical portion and the pressing jig; tightening the second tubular component against the pressing jig; aligning the two fitted cylindrical portions with the pressing tool; and pressing by plastic deformation the first and second cylindrical portions. The first and second pressed tubular components form a rigid assembly, with the two fitted and pressed cylindrical portions defining a fitting and a joint. Additional steps include: positioning the rigid assembly with respect to the welding jig; clamping the rigid assembly against the welding jig; and welding by positioning and orienting the welding head repeatably with respect to the fitting and the joint, where the rigid assembly is positioned with respect to the welding jig along one or more surfaces belonging exclusively to the first component in the pressed state.

    SILENT EXHAUST VALVE
    14.
    发明申请

    公开(公告)号:US20220333692A1

    公开(公告)日:2022-10-20

    申请号:US17720388

    申请日:2022-04-14

    Abstract: An exhaust valve comprises a substantially tubular body extending along an extension axis, a substantially flat flap, and a shaft integral with the flap and rotatable about a rotation axis between a closed orientation and an open orientation. The exhaust valve further includes a first seat suitable for accommodating a first edge of the flap facing the first seat, and a second seat suitable for receiving a second opposing edge of the flap. In each plane passing through the extension axis, a distal end of a profile of a seat is curved in the direction of the opposing edge until the distal end comes into contact with the opposing edge. A distal end of a profile of an edge is curved in the direction of the opposing seat until the distal end comes into contact with the seat.

    Pressurized gas tank
    16.
    发明授权

    公开(公告)号:US11435030B2

    公开(公告)日:2022-09-06

    申请号:US17075852

    申请日:2020-10-21

    Abstract: A tank for pressurized gas, such as hydrogen, comprises a structure, a base, a sealing jacket and a ring. The structure has a substantially cylindrical shape along an axis and includes at least one axial opening along the axis. The base is able to be positioned in said opening and comprises, on the inner side, a housing of revolution about the axis and a first fastener, and is pierced with at least one through pipe that is axial along the axis. The sealing jacket is flexible and tight, and is to cover the inner wall of the structure and comprises a neck able to be received in the housing. The ring is substantially of revolution about the axis, and comprises a second fastener able to cooperate with the first fastener in order to assemble the ring with the base, on the inner side, by bringing the ring closer to the base along the axis, so as to progressively press the neck between the ring and the base. The ring comes closer to the base following a movement parallel to the axis from the inside of the tank toward the outside. and A face of the housing opposite the neck and a face of the ring opposite the neck have a small taper.

    DEVICE FOR FASTENING A PRESSURIZED GAS TANK TO A FRAME

    公开(公告)号:US20220212535A1

    公开(公告)日:2022-07-07

    申请号:US17569597

    申请日:2022-01-06

    Inventor: Yannick GODARD

    Abstract: A device fastens a tank for pressurized gas, such as hydrogen, to a frame. The tank comprises a base including a cylindrical seat. The device comprises a fastener able to clamp the cylindrical seat of the base, where the device also comprises at least one mechanical fuse that is able to break in case of impact experienced by the frame, so that the device releases the base from the frame.

    TANK FOR PRESSURIZED GAS
    19.
    发明申请

    公开(公告)号:US20220154880A1

    公开(公告)日:2022-05-19

    申请号:US17439056

    申请日:2020-03-20

    Abstract: A tank for pressurized gas, such as hydrogen, comprises a structure defining a volume of the tank and having at least one opening. There are as many bases as there are openings, with each base being disposed in one of the openings. A sealing enclosure covers an entire internal surface of the structure and interfaces with the base. At least one conduit allows leakage between an outer surface of the sealing enclosure and an outside of the tank. The base has a recessed external profile with an undercut at an interface with the structure. The at least one conduit comprises at least one chute interposed between the structure and the base.

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