MODULATED COMBUSTOR BYPASS
    3.
    发明申请

    公开(公告)号:US20190113232A1

    公开(公告)日:2019-04-18

    申请号:US15782423

    申请日:2017-10-12

    IPC分类号: F23R3/26 F02C9/18

    摘要: A combustor section of a gas turbine engine includes a combustor having a combustor inlet, and a combustor bypass passage having a passage inlet located upstream of the combustor inlet. The combustor bypass passage is configured to divert a selected bypass airflow around the combustor. A combustor bypass valve is located at the combustor bypass passage to control the selected bypass airflow along the combustor bypass passage. A method of operating a gas turbine engine, includes urging a core airflow from a compressor section toward a combustor section, flowing a first portion of the core airflow into the combustor section via a combustor inlet, and flowing a second portion of the core airflow into a combustor bypass passage via a combustor bypass valve, thereby bypassing the combustor with the second portion of the core airflow.

    Fuel system
    6.
    发明授权

    公开(公告)号:US09828916B2

    公开(公告)日:2017-11-28

    申请号:US14740765

    申请日:2015-06-16

    申请人: IHI Corporation

    发明人: Seiei Masuda

    摘要: A fuel system includes a fuel pump formed of a constant-volume pump for changing a discharge flow rate in conjunction with a variation in a speed of revolution of a drive shaft, a boost pump disposed upstream from the fuel pump and formed of a constant-volume pump of which a discharge flow rate per unit of revolution of a drive shaft is greater than that of the fuel pump, a single electric motor rotationally driving the drive shaft of the fuel pump and the drive shaft of the boost pump in a state in which the speeds of revolution thereof are equal to each other, a return flow channel connecting an upstream side and a downstream side of the boost pump, and a relief valve disposed in the return flow channel and opened when an internal pressure of the return flow channel is greater than a reference pressure.