COMPRESSOR WITH ANTI-ICE INLET
    22.
    发明公开

    公开(公告)号:US20240318577A1

    公开(公告)日:2024-09-26

    申请号:US18307450

    申请日:2023-04-26

    Inventor: Dariusz Olczak

    CPC classification number: F01D25/02 F02C7/04 F02K3/00 F05D2220/36

    Abstract: A compressor comprises a rotor shaft including a forward end portion. The forward end portion defines an outer surface. A first row of compressor rotor blades is coupled to the rotor shaft downstream from the forward end portion. An outer casing at least partially surrounds the first row of compressor rotor blades and the outer surface of the forward end portion of the rotor shaft. The outer casing at least partially defines an inlet to the compressor. An inlet guide vane comprises a mounting portion, a tip portion, a leading-edge portion, and a trailing-edge portion. The mounting portion is coupled to the outer casing upstream from the first row of compressor rotor blades. The tip portion extends towards the outer surface of the forward end portion of the rotor shaft. A radial gap is defined between the tip portion and the outer surface.

    GAS TURBINE ENGINES INCLUDING EMBEDDED ELECTRICAL MACHINES AND ASSOCIATED COOLING SYSTEMS

    公开(公告)号:US20240167422A1

    公开(公告)日:2024-05-23

    申请号:US18378974

    申请日:2023-10-11

    CPC classification number: F02C7/18 F02C6/00 F05D2220/76

    Abstract: A gas turbine engine includes a fan located at a forward portion of the gas turbine engine. A compressor section and a turbine section are arranged in serial flow order. The compressor section and the turbine section together define a core airflow path. A rotary member is rotatable with at least a portion of the compressor section and with at least a portion of the turbine section. An electrical machine is coupled to the rotary member and is located at least partially inward of the core airflow path in a radial direction. An enclosure at least partially encloses the electrical machine. The enclosure at least partially defines a first cooling airflow path within the enclosure that at least partially defines a first cooling airflow buffer cavity at least partially around the electrical machine. The first cooling airflow path is in communication with a second cooling airflow path located outside the enclosure that at least partially defines a second cooling airflow buffer cavity at least partially around the enclosure. A cooling duct provides pressurized air to the first cooling airflow path such that the air flows along both the first cooling airflow path and the second cooling airflow path providing the first cooling airflow buffer cavity and the second cooling airflow buffer cavity.

    Gas turbine engines including embedded electrical machines and associated cooling systems

    公开(公告)号:US11891954B2

    公开(公告)日:2024-02-06

    申请号:US17400936

    申请日:2021-08-12

    CPC classification number: F02C7/18 F02C6/00 F05D2220/76

    Abstract: A gas turbine engine includes a fan located at a forward portion of the gas turbine engine. A compressor section and a turbine section are arranged in serial flow order. The compressor section and the turbine section together define a core airflow path. A rotary member is rotatable with at least a portion of the compressor section and with at least a portion of the turbine section. An electrical machine is coupled to the rotary member and is located at least partially inward of the core airflow path in a radial direction. An enclosure at least partially encloses the electrical machine. The enclosure at least partially defines a first cooling airflow path within the enclosure that at least partially defines a first cooling airflow buffer cavity at least partially around the electrical machine. The first cooling airflow path is in communication with a second cooling airflow path located outside the enclosure that at least partially defines a second cooling airflow buffer cavity at least partially around the enclosure. A cooling duct provides pressurized air to the first cooling airflow path such that the air flows along both the first cooling airflow path and the second cooling airflow path providing the first cooling airflow buffer cavity and the second cooling airflow buffer cavity.

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