Buffer cooling system providing gas turbine engine architecture cooling
    18.
    发明授权
    Buffer cooling system providing gas turbine engine architecture cooling 有权
    缓冲冷却系统提供燃气轮机发动机架构冷却

    公开(公告)号:US09157325B2

    公开(公告)日:2015-10-13

    申请号:US13405502

    申请日:2012-02-27

    摘要: A gas turbine engine includes a buffer cooling system having a first heat exchanger, a first passageway, a second passageway and a third passageway. The first heat exchanger exchanges heat with a bleed airflow to provide a conditioned airflow. The first passageway communicates a first portion of the conditioned airflow to a high pressure compressor of the gas turbine engine, the second passageway communicates a second portion of the conditioned airflow to a high pressure turbine of the gas turbine engine, and the third passageway communicates a third portion of the conditioned airflow to a low pressure turbine of the gas turbine engine.

    摘要翻译: 燃气涡轮发动机包括具有第一热交换器,第一通道,第二通道和第三通道的缓冲冷却系统。 第一热交换器与放气气流交换热量以提供调节气流。 第一通道将调节气流的第一部分与燃气涡轮发动机的高压压缩机连通,第二通道将调节气流的第二部分连通到燃气涡轮发动机的高压涡轮机,并且第三通道 调节气流的第三部分到燃气涡轮发动机的低压涡轮机。

    Bearing mounting system in a low pressure turbine

    公开(公告)号:US08511986B2

    公开(公告)日:2013-08-20

    申请号:US12001130

    申请日:2007-12-10

    IPC分类号: F04D29/04

    摘要: A bearing mounting system for use in a gas turbine engine having a low pressure turbine supported on a low pressure shaft through a support rotor comprises a low pressure turbine case, a forward bearing and an aft bearing, and a forward support structure and an aft support structure. The low pressure turbine case surrounds the low pressure turbine. The forward bearing and the aft bearing are positioned on the low pressure shaft to straddle the support rotor. The forward support structure and the aft support structure connect the forward bearing and the aft bearing, respectively, to the low pressure turbine case. The low pressure shaft extends axially between the forward bearing and the aft bearing. In one embodiment, the turbine comprises a plurality of adjacent rotor disks, and the support rotor comprises a conical support connecting one of the rotor disks with the shaft.