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    Compressed air bleed supply for buffer system
    1.
    发明授权
    Compressed air bleed supply for buffer system 有权

    公开(公告)号：US10731563B2

    公开(公告)日：2020-08-04

    申请号：US15882058

    申请日：2018-01-29

    Applicant: United Technologies Corporation

    Inventor： Peter M. Munsell ,  Philip S. Stripinis

    IPC: F02C1/00 ,  F02C7/18 ,  F01D25/18 ,  F01D25/22 ,  F02C6/08

    Abstract: A method of designing a buffer system for a gas turbine engine according to an example of the present disclosure includes, among other things, configuring a heat exchanger to define a first inlet and a first outlet fluidly coupled to each other and a second inlet and a second outlet fluidly coupled to each other, configuring the first inlet to receive air from first and second air sources that are selectively fluidly coupled to the first inlet, configuring the second inlet to receive air from a third air source fluidly that is coupled to the second inlet, and configuring the first outlet to provide cooled pressurized air to multiple fluid-supplied areas that are located remotely from one another and that are fluidly coupled to the first outlet, the multiple fluid-supplied areas including a bearing compartment of a gas turbine engine.

    MULTI-CIRCUIT BUFFER SYSTEM FOR A GAS TURBINE ENGINE
    6.
    发明申请
    MULTI-CIRCUIT BUFFER SYSTEM FOR A GAS TURBINE ENGINE 审中-公开
    用于气体涡轮发动机的多电路缓冲器系统

    公开(公告)号：US20140318143A1

    公开(公告)日：2014-10-30

    申请号：US14283610

    申请日：2014-05-21

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Jorn A. Glahn ,  William K. Ackermann ,  Clifton J. Crawley ,  Philip S. Stripinis

    IPC: F02C6/08 ,  F02C7/14

    CPC classification number: F02C6/08 ,  F01D25/18 ,  F01D25/183 ,  F02C7/12 ,  F02C7/14 ,  F05D2260/601 ,  Y02T50/675

    Abstract: A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a shaft, a first bearing structure and a second bearing structure that support the shaft. Each of the first bearing structure and the second bearing structure includes a bearing compartment that contains a lubricant and a seal that contains the lubricant within the bearing compartments. A buffer system is configured to pressurize the seals to prevent the lubricant from escaping the bearing compartments. The buffer system includes a first circuit configured to supply a first buffer supply air to the first bearing structure, a second circuit configured to supply a second buffer supply air to the second bearing structure, and a controller configured to select between at least two bleed air supplies to communicate the first buffer supply air and the second buffer supply air.

    Abstract translation: 根据本公开的示例性方面的燃气涡轮发动机尤其包括支撑轴的轴，第一轴承结构和第二轴承结构。 第一轴承结构和第二轴承结构中的每一个包括轴承室，其包含润滑剂和在轴承隔室内容纳润滑剂的密封件。 缓冲系统被配置为对密封件加压以防止润滑剂从轴承隔间逸出。 缓冲系统包括被配置为向第一轴承结构提供第一缓冲器供应空气的第一电路，被配置为将第二缓冲器供应空气供应到第二轴承结构的第二电路以及被配置为在至少两个放气 用于通信第一缓冲器供应空气和第二缓冲器供应空气。

    Gas turbine engine buffer system
    7.
    发明授权
    Gas turbine engine buffer system 有权

    公开(公告)号：US11098644B2

    公开(公告)日：2021-08-24

    申请号：US16677721

    申请日：2019-11-08

    Applicant: United Technologies Corporation

    Inventor： Peter M. Munsell ,  Philip S. Stripinis

    IPC: F02C6/08 ,  F01D11/06 ,  F01D25/12 ,  F01D11/04 ,  F02C9/18 ,  F02C7/28 ,  F02C7/06

    Abstract: A gas turbine engine includes a fan, a compressor section, and a turbine section configured to drive the compressor section and the fan. A buffer system is configured to communicate a buffer supply air to a portion of the gas turbine engine. The buffer system includes a first bleed air supply having a first pressure, a second bleed air supply having a second pressure that is greater than the first pressure, and an ejector that selectively augments the first bleed air supply to prepare the buffer supply air for communication to the portion of the gas turbine engine. A method and a buffer system are also disclosed.

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