知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

1644 条记录 (耗时 0.024 秒)

    Compressor rotor having flow loop through tie bolt
    13.
    发明授权
    Compressor rotor having flow loop through tie bolt 有权

    公开(公告)号：US11821435B2

    公开(公告)日：2023-11-21

    申请号：US18000935

    申请日：2020-07-02

    申请人： Siemens Energy Global GmbH & Co. KG

    发明人： Kevin Miny

    IPC分类号： F04D29/26 ,  F04D29/10 ,  F04D29/054 ,  F04D17/12 ,  F04D29/08

    CPC分类号： F04D29/266 ,  F04D17/12 ,  F04D29/054 ,  F04D29/08 ,  F04D29/102

    摘要： Compressor rotor structure for turbomachinery, such as a compressor, is provided. Disclosed embodiments may involve a flow loop that at least in part flows through the interior of the tie bolt or by way of a venting arrangement that at least in part extends through one of the rotor shafts of the rotor structure. Disclosed embodiments may further benefit from seal elements that may be arranged to inhibit passage onto respective hirth couplings of the process fluid being processed by the compressor. In operation, the flow loop may be appropriately pressurized to keep any residual seal leakage that may develop in one or more of the seal elements from travelling onto the hirth couplings.

    Vacuum cleaner assembly
    15.
    发明授权
    Vacuum cleaner assembly 有权

    公开(公告)号：US11708055B2

    公开(公告)日：2023-07-25

    申请号：US16556385

    申请日：2019-08-30

    申请人： SHOP VAC CORPORATION

    发明人： Jason Gottschall

    IPC分类号： B60S1/64 ,  A47L9/14 ,  F04D29/40 ,  E05B65/00 ,  F04D29/70 ,  F04D29/08

    CPC分类号： B60S1/64 ,  A47L9/1409 ,  E05B65/006 ,  F04D29/083 ,  F04D29/403 ,  F04D29/701

    摘要： A vacuum cleaner assembly configured to be mounted in a vehicle. The vacuum cleaner assembly including a vacuum unit configured to draw a vacuum, a canister assembly configured to collect debris and coupled to the vacuum unit, a hose junction configured to serve as a pathway for debris, and a chassis connecting the hose junction to the canister assembly. A pathway through the vacuum cleaner assembly may turn 180 degrees in the hose junction. A dirty air port of the canister assembly may be disposed at an angle relative to a surface of the chassis to facilitate placement and removal of the canister assembly.

    Pressure seal assembly
    18.
    发明授权
    Pressure seal assembly 有权

    公开(公告)号：US11686218B2

    公开(公告)日：2023-06-27

    申请号：US16999971

    申请日：2020-08-21

    申请人： PRATT & WHITNEY CANADA CORP.

    发明人： Stuart Hodgson ,  Felipe Perez ,  Daniel Poirier ,  Nadim Antoine Najjar

    IPC分类号： F01D25/18 ,  F04D29/08 ,  F04D29/10 ,  F04D29/12 ,  F16C33/10

    CPC分类号： F01D25/186 ,  F01D25/183 ,  F04D29/086 ,  F04D29/106 ,  F04D29/12 ,  F16C33/10

    摘要： A gas turbine engine having a bearing housing with a housing cavity and a shaft rotating about a rotation axis. One or more bearings support the shaft. A housing supporting the bearing and defining a chamber axially adjacent to the bearing. A seal assembly is in the housing between the chamber and an exterior of the chamber. The seal assembly includes a seal supported by the housing and surrounding the shaft so as to define an annular gap between an inner surface of the seal and an outer surface associated to the shaft, the gap defining a part of a sealing path of the seal assembly for air to flow from said exterior into the chamber. An impeller rotates with the shaft and located radially inward of the gap relative to the rotation axis, the impeller oriented to drive oil toward the bearing.