GAS TURBINE ENGINE BLEED AIR FLOW CONTROL
    2.
    发明公开

    公开(公告)号:US20240159157A1

    公开(公告)日:2024-05-16

    申请号:US18158618

    申请日:2023-01-24

    IPC分类号: F01D9/06 F02C6/08 F02C9/18

    摘要: A gas turbine engine includes a compressor with an inner casing and an outer casing. The inner casing defines a primary flow path for airflow through the compressor, the inner casing and the outer casing define a bleed air cavity therebetween. The inner casing at least partially defines a first bleed air channel between the primary flow path and the first bleed air cavity. The first bleed air channel is defined between a first wall and a second wall, wherein the first wall is upstream from the second wall. The first wall includes a plurality of holes in fluid communication with the primary flow path and fluidly coupled to a suction manifold. The plurality of holes is configured to energize a fluid boundary layer along the first wall.

    Bleed air offtake assembly for a gas turbine engine

    公开(公告)号:US11732645B2

    公开(公告)日:2023-08-22

    申请号:US17367774

    申请日:2021-07-06

    发明人: Eric Durocher

    IPC分类号: F02C6/08 F01D9/06 F01D17/14

    摘要: A gas turbine engine comprising: a duct extending about an axis, the duct including an outer-duct wall having an interior-duct surface circumscribing an interior of the duct and an exterior-duct surface radially outward of the interior-duct surface relative to the axis, the outer-duct wall defining an offtake opening extending from the interior-duct surface to the exterior-duct surface, the offtake opening in fluid communication between an offtake location inside the duct and outside the duct, and a bleed air offtake assembly including: an air line in fluid communication with inside the duct via the offtake opening, the air line having a first-line end defining a line inlet proximate to the outer-duct wall and a second-line end spaced from the first-line end; a valve located outside the duct and fluidly connected to the air line via the second-line end, and a conduit having a conduit inlet in fluid communication with inside the air line at a resonance location between the first-line end and the second-line end upstream of the valve, and a conduit outlet in fluid communication with inside the duct at a relief location spaced from the offtake location.