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公开(公告)号：US20150337682A1
公开(公告)日：2015-11-26
申请号：US14443818
申请日：2013-12-17
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： William Yeager , John S. Tu
CPC classification number: F01D25/14 , F01D9/065 , F01D25/162 , F01D25/24 , F01D25/30 , F02C7/12 , F02C7/20 , F05D2250/185 , F05D2260/20 , Y02T50/675
Abstract: Cooling a turbine exhaust case (TEC) employed in an industrial gas turbine engine includes supplying cooling airflow from an outer diameter (OD) to an inner diameter (ID) cavity, supplying a secondary airflow having a pressure greater than the pressure of the cooling airflow to the ID cavity for mixing with the cooling airflow to provide a mixed airflow, and directing the mixed airflow in a serpentine cooling path that includes first directing the mixed airflow radially outward via hollow struts to an OD cavity, then radially inward via hollow fairings that surround the hollow struts.
Abstract translation: 冷却在工业燃气涡轮发动机中使用的涡轮机排气箱（TEC）包括将冷却气流从外径（OD）提供给内径（ID）空腔，供应具有大于冷却气流压力的压力的二次气流 到ID空腔以与冷却气流混合以提供混合的气流，并且将混合气流引导到蛇形冷却路径中，其包括首先将混合气流径向向外经由空心支柱引导到OD空腔，然后经由空心整流罩径向向内 环绕中空支柱。
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公开(公告)号：US20150292344A1
公开(公告)日：2015-10-15
申请号：US14680382
申请日：2015-04-07
Applicant: United Technologies Corporation
Inventor： Conway Chuong , Jeffrey J. Lienau , William Yeager
IPC: F01D11/00
CPC classification number: F01D11/00 , F01D5/143 , F01D5/145 , F05D2240/80 , F05D2250/11 , F05D2270/17 , Y02T50/673
Abstract: An endwall of a gas turbine engine section comprises a flow path surface and a wall. The flow path surfaces defines an inner diameter of a main flow path through the gas turbine engine section, and terminates in an aft waterfall step. The wall extends substantially radially inward from the waterfall step, and defines a blockage feature that impedes airflow from the main flow path to a secondary air cavity situated inward of the waterfall step.
Abstract translation: 燃气涡轮发动机部分的端壁包括流动路径表面和壁。 流路表面限定通过燃气涡轮发动机部分的主流路的内径，并且终止于后瀑布步骤。 壁从瀑布步骤基本上径向向内延伸，并且限定了妨碍从主流路到位于瀑布步骤内侧的二次空气腔的气流的阻塞特征。
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