Methods and apparatus for operating gas turbine engines
    1.
    发明授权
    Methods and apparatus for operating gas turbine engines 有权
    运行燃气轮机的方法和装置

    公开(公告)号:US06799112B1

    公开(公告)日:2004-09-28

    申请号:US10678919

    申请日:2003-10-03

    IPC分类号: G06F1900

    摘要: A method is provided for detecting airflow reversal in a sump system of a gas turbine engine. The method includes positioning a first pressure sensor at a sump vent to sense a discharge flow pressure from a sump within the sump system, positioning a second pressure sensor in the sump to sense a pressure in the sump, comparing the sensed pressures obtained from the first and second pressure sensors to determine a pressure difference, and comparing the pressure difference to a predetermined maximum allowable pressure difference.

    摘要翻译: 提供了一种用于检测燃气涡轮发动机的油底壳系统中的气流反转的方法。 该方法包括将第一压力传感器定位在集油口处以感测来自集油槽系统内的集油槽的排出流量压力,将第二压力传感器定位在油底壳中以感测油底壳中的压力,将从第一 和第二压力传感器,以确定压力差,并将压力差与预定的最大允许压力差进行比较。

    Packer with positionable collar
    2.
    发明申请
    Packer with positionable collar 有权
    封隔器有可定位的领

    公开(公告)号:US20060169466A1

    公开(公告)日:2006-08-03

    申请号:US11049159

    申请日:2005-02-02

    IPC分类号: E21B33/12

    CPC分类号: E21B33/127 E21B33/146

    摘要: A fluid actuated packer 10 and collar 36 assembly is provided for positioning on a tubular member 12. The collar 36 is moveable by a running tool 110 positioned within the tubular member and has a closed position and a packer activate position, fluidly connects the collar 36 to the packer element 14 when in the packer activate position, and closes off the flow path 26 when in the closed position. According to a method of the invention, the flow path 26 extends from the collar to the expandable packer element 14 and is open to activate the packer element 14 and closes off the flow path 26 when in the closed position.

    摘要翻译: 提供流体驱动的封隔器10和套环36组件用于定位在管状构件12上。 套环36可通过位于管状构件内的运行工具110移动,并具有关闭位置和封隔器启动位置,当处于封隔器启动位置时将套环36流体地连接到封隔器元件14,并且封闭流路26 处于关闭状态。 根据本发明的方法,流动路径26从套环延伸到可膨胀封隔器元件14,并且在处于关闭位置时打开以启动封隔器元件14并封闭流路26。