DYNAMIC SEAL FOR A TURBOMACHINE COMPRISING A MULTI-LAYER ABRADABLE PART

    公开(公告)号:US20220228502A1

    公开(公告)日:2022-07-21

    申请号:US17614423

    申请日:2020-05-26

    IPC分类号: F01D11/00 F01D11/12

    摘要: A dynamic seal for a turbomachine, including a fixed portion provided with at least one abradable wear part and a movable portion including at least one lip arranged to interact with the at least one wear part during the rotation of the movable portion. The wear part includes a structure forming cavities arranged in one or more series such that, in each series, the cavities of this series are superposed radially with respect to the central axis, the structure being configured to limit or prevent the circulation of gas between each pair of radially adjacent cavities. A method for the additive manufacture of the fixed portion of this dynamic seal is also described.

    LUBRIFICATION DEVICE FOR A TURBO MACHINE
    3.
    发明申请

    公开(公告)号:US20190331001A1

    公开(公告)日:2019-10-31

    申请号:US16395823

    申请日:2019-04-26

    IPC分类号: F01D25/18 F01D5/02

    摘要: The invention relates to a lubrication device (1) for a turbo machine, comprising: a rotor (2) rotating around an axis, at least one lubrication chamber (6) formed in the rotor (2), a stator (22) in which the rotor (2) is rotatably mounted, a bearing (11) for rotationally guiding the rotor (2), mounted between the rotor (2) and the stator, lubricating fluid supply means which supply at least the chamber (6) and the bearing (11), the lubricating fluid supply means comprising a nozzle (23) mounted on the stator provided with an ejection nozzle (34) at a free end of the nozzle (23), said nozzle (34) being configured to project the lubricating fluid into the chamber (6), characterized in that the nozzle (23) has a movable part (27) including said ejection nozzle (34), said movable part (27) being movable between a retracted position in which the ejection nozzle (34) is remote from the chamber (6) or at least partially located outside the chamber (6), and an extended position in which the nozzle (34) is closer to the chamber (6) or at least partially located in the chamber (6).

    DEVICE FOR COOLING AN ANNULAR OUTER TURBINE CASING

    公开(公告)号:US20200182089A1

    公开(公告)日:2020-06-11

    申请号:US16623086

    申请日:2018-06-04

    IPC分类号: F01D25/14 F01D25/12

    摘要: The invention relates to a device (26) for cooling an annular outer turbine casing (17), the device (26) comprising at least one circumferentially extending tube (27) having an air inlet intended for conveying cooling air, said tube (27) having a radially inner wall provided with cooling air discharge openings and a radially outer wall arranged axially opposite each other, an air inlet manifold (28), the inlet of the tube (27) opening into said manifold (28), characterized in that the tube (27) comprises at least one intermediate wall extending over a circumferential portion of the tube (27) from the air inlet, the intermediate wall being located radially between the radially inner wall and the radially outer wall, the radially inner wall and the intermediate wall forming a first air conveying duct, the radially outer wall and the intermediate wall forming a second air conveying duct extending circumferentially beyond the first air conveying duct, relative to the air inlet.

    TURBINE HOUSING COOLING DEVICE
    6.
    发明公开

    公开(公告)号:US20230160319A1

    公开(公告)日:2023-05-25

    申请号:US17919184

    申请日:2021-04-13

    IPC分类号: F01D25/14 F01D25/12

    摘要: A turbomachine turbine casing that extend around an axis and includes an annular wall and a cooling device. The annular wall is provided with a casing hook which extends in radial protrusion from an inside of the annular wall. The casing hook allows a mounting, on the turbomachine turbine casing, of ring segments disposed circumferentially end to end around the axis. The cooling device includes a collector duct intended to convey cooling air, the collector duct extending circumferentially around the annular wall. The collector duct has a cooling air inlet and a cooling air outlet. The collector duct and the annular wall have a common portion, which delimits the collector duct and from which the corresponding casing hook extends.

    PRESSURIZED-AIR SUPPLY UNIT FOR AN AIR-JET COOLING DEVICE

    公开(公告)号:US20210396152A1

    公开(公告)日:2021-12-23

    申请号:US17273665

    申请日:2019-09-06

    摘要: The invention relates to a pressurized-air supply unit for an air-jet cooling device cooling an outer casing of a turbomachine turbine. This unit is notable in that it is monobloc, in that it comprises: —a body which has an interior wall provided with air-ejection perforations, an exterior wall and outlet ducts which are configured to be coupled to cooling lines of the cooling device,—an elbowed air-conveying pipe coupled by its outlet opening to said exterior wall of the body, and in that said unit comprises at least one air-distribution partition, arranged in the outlet opening and connecting the internal face of the portion of the air-conveying pipe that is situated facing the body to the internal face of the opposite portion of the air-conveying pipe.