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公开(公告)号：US20150159560A1
公开(公告)日：2015-06-11
申请号：US14097561
申请日：2013-12-05
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Anurag Kumar , Chiong Siew Tan , Niranjan Talanjeri Shankaranarayana , Vilas Kawaduji Bokade
IPC: F02C9/18
CPC classification number: F02C9/18 , F02C7/30 , F05D2260/607 , Y02T50/675
Abstract: A system for extracting foreign matter in a gas turbine is provided. The system includes a variable bleed valve (VBV) disposed between a booster and a high pressure compressor configured to bleed at least a first flow from a core engine flow path into a bypass flow path to extract foreign particles. The system also includes a wedge structure disposed in the core engine flowpath proximate to the variable bleed valve and configured to allow the at least first flow into the bypass flow path through an extraction passage or at least a second flow through a recovery passage into the core engine flow path.
Abstract translation: 提供一种用于在燃气轮机中提取异物的系统。 该系统包括设置在增压器和高压压缩机之间的可变放气阀（VBV），该可变放气阀构造成将至少一个从核心发动机流动路径流入旁路流路以提取外来颗粒。 该系统还包括设置在靠近可变放气阀的核心发动机流路中的楔形结构，并且构造成允许至少第一流通过提取通道进入旁路流动路径，或至少通过回流通道进入核心的第二流 发动机流路。
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公开(公告)号：US20150139775A1
公开(公告)日：2015-05-21
申请号：US14086683
申请日：2013-11-21
Applicant: General Electric Company
Inventor： Anurag Kumar , Byron Andrew Pritchard , Chiong Siew Tan
IPC: B01D45/08
Abstract: A system for extracting foreign matter in a gas turbine includes multiple variable bleed valve (VBV) doors disposed on the outer engine casing between a low pressure compressor and a high pressure compressor for bleeding a portion of flow from a core engine flow path into a bypass flow path. The system includes an outlet guide vane (OGV) assembly having multiple guide vanes disposed within the core flow path and multiple support struts positioned downstream from the multiple guide vanes. Each pairs of adjacent support struts comprises at least one VBV door therebetween and a section of the OGV assembly located at an upstream side of the fan hub frame before the each pairs of adjacent support struts. Each section of the OGV assembly includes a first side with one or more guide vanes with trimmed trailing edges configured for directing flow into the at least one VBV door.
Abstract translation: 一种用于在燃气轮机中提取异物的系统包括多个可变排放阀（VBV）门，其设置在外部发动机壳体之间的低压压缩机和高压压缩机之间，用于将来自核心发动机流动路径的一部分流量排出到旁路 流路。 该系统包括出口导叶（OGV）组件，其具有设置在芯流道内的多个导向叶片和位于多个导向叶片下游的多个支撑支柱。 每对相邻的支撑支柱在它们之间包括至少一个VBV门，并且在每对相邻的支撑支柱之间的OGV组件的一部分位于风扇毂框架的上游侧。 OGV组件的每个部分包括具有一个或多个导向叶片的第一侧面，该导向叶片被修剪后缘构造成用于引导流入至少一个VBV门。
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公开(公告)号：US09623354B2
公开(公告)日：2017-04-18
申请号：US14086683
申请日：2013-11-21
Applicant: General Electric Company
Inventor： Anurag Kumar , Byron Andrew Pritchard , Chiong Siew Tan
Abstract: A system for extracting foreign matter in a gas turbine includes multiple variable bleed valve (VBV) doors disposed on the outer engine casing between a low pressure compressor and a high pressure compressor for bleeding a portion of flow from a core engine flow path into a bypass flow path. The system includes an outlet guide vane (OGV) assembly having multiple guide vanes disposed within the core flow path and multiple support struts positioned downstream from the multiple guide vanes. Each pairs of adjacent support struts comprises at least one VBV door therebetween and a section of the OGV assembly located at an upstream side of the fan hub frame before the each pairs of adjacent support struts. Each section of the OGV assembly includes a first side with one or more guide vanes with trimmed trailing edges configured for directing flow into the at least one VBV door.
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