公开(公告)号：US20130340439A1

公开(公告)日：2013-12-26

申请号：US14011318

申请日：2013-08-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sanji Ekanayake ,  Alston Ilford Scipio ,  Dale J. Davis ,  Ryan Margate Pastrana

IPC: F02C7/047

CPC classification number: F02C7/047 ,  F02C6/08 ,  F02C6/18 ,  F02C7/055

Abstract: A system for de-icing a gas turbine engine is provided. A manifold is coupled to an inlet screen. A first conduit is coupled to a stage of the compressor and a first input of a mixing component. A second conduit is coupled to the exhaust and a second input of the mixing component. The second conduit being adapted to extract exhaust gases without increasing the pressure at the exhaust. A third conduit is coupled to the output of the mixing component and the manifold. A method for de-icing a gas turbine engine inlet screen includes determining a current temperature at the inlet screen, and determining a desired temperature at the inlet screen. If the current temperature at the inlet screen is less than the desired temperature at the inlet screen first flow rate of an air-exhaust mixture necessary to achieve the desired inlet screen temperature is calculated. The method also includes extracting an amount of exhaust gas from a turbine exhaust subsystem without increasing a pressure at the turbine exhaust subsystem, extracting an amount of air from a compressor stage, and mixing the amount of exhaust gas with the amount of air to generate an air-exhaust mixture that is conveyed to the inlet screen.

Abstract translation: 提供了一种用于除燃气涡轮发动机的系统。 歧管联接到入口屏幕。 第一导管连接到压缩机的级和混合部件的第一输入端。 第二导管连接到排气口和混合部件的第二输入端。 第二导管适于在不增加排气压力的情况下提取废气。 第三导管连接到混合部件和歧管的输出端。 一种用于除燃燃气涡轮发动机入口屏幕的方法包括确定入口屏幕处的当前温度，以及确定入口屏幕处的期望温度。 如果入口筛网处的当前温度低于进口筛网所需的温度，则计算达到所需入口筛网温度所需的排气混合物的第一流量。 该方法还包括从涡轮机排气子系统中抽取一定量的废气而不增加涡轮排气子系统的压力，从压缩机级提取一定量的空气，并将废气量与空气量混合以产生 输送到入口屏幕的排气混合物。

公开(公告)号：US08844258B2

公开(公告)日：2014-09-30

申请号：US14011318

申请日：2013-08-27

Applicant: General Electric Company

Inventor： Sanji Ekanayake ,  Alston Ilford Scipio ,  Dale J. Davis ,  Ryan Margate Pastrana

IPC: F02G3/00 ,  F02C7/055 ,  F02C7/047 ,  F02C6/08 ,  F02C6/18

CPC classification number: F02C7/047 ,  F02C6/08 ,  F02C6/18 ,  F02C7/055

Abstract: A system for de-icing a gas turbine engine is provided. A manifold is coupled to an inlet screen. A first conduit is coupled to a stage of the compressor and a first input of a mixing component. A second conduit is coupled to the exhaust and a second input of the mixing component. The second conduit being adapted to extract exhaust gases without increasing the pressure at the exhaust. A third conduit is coupled to the output of the mixing component and the manifold. A method for de-icing a gas turbine engine inlet screen includes determining a current temperature at the inlet screen, and determining a desired temperature at the inlet screen. If the current temperature at the inlet screen is less than the desired temperature at the inlet screen first flow rate of an air-exhaust mixture necessary to achieve the desired inlet screen temperature is calculated. The method also includes extracting an amount of exhaust gas from a turbine exhaust subsystem without increasing a pressure at the turbine exhaust subsystem, extracting an amount of air from a compressor stage, and mixing the amount of exhaust gas with the amount of air to generate an air-exhaust mixture that is conveyed to the inlet screen.

Abstract translation: 提供一种用于除燃气涡轮发动机的系统。 歧管联接到入口屏幕。 第一导管连接到压缩机的级和混合部件的第一输入端。 第二导管连接到排气口和混合部件的第二输入端。 第二导管适于在不增加排气压力的情况下提取废气。 第三导管连接到混合部件和歧管的输出端。 一种用于除燃燃气涡轮发动机入口屏幕的方法包括确定入口屏幕处的当前温度，以及确定入口屏幕处的期望温度。 如果入口筛网处的当前温度低于进口筛网所需的温度，则计算达到所需入口筛网温度所需的排气混合物的第一流量。 该方法还包括从涡轮机排气子系统中抽取一定量的废气而不增加涡轮排气子系统的压力，从压缩机级提取一定量的空气，并将废气量与空气量混合以产生 输送到入口屏幕的排气混合物。