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公开(公告)号：US09982598B2
公开(公告)日：2018-05-29
申请号：US13657193
申请日：2012-10-22
Applicant: General Electric Company
Inventor： Byron Andrew Pritchard, Jr. , Charles Daniel Califf , Peter John Wood , Raymond Gust Holm , Allan George van de Wall , Peter Alfred Pezzi
CPC classification number: F02C7/052 , F02C6/08 , F02C7/28 , F02C9/18 , F02C9/28 , F02K3/075 , F04D27/0215 , F04D27/023 , F05D2260/606 , F05D2260/607
Abstract: A variable bleed valve includes a variable bleed valve door disposed in a bleed inlet in transition duct and rotatable about an axis at or near a forward end of door. Valve is operable to open and close a bleed slot open to a booster bleed flowpath located outwardly of transition duct and having an airflow restrictor. Airflow restrictor may be variable such as a flapper valve. Booster bleed flowpath may pass through a bifurcated bleed duct including an inner passage radially bound by spaced apart inner and middle bleed walls and an outer passage radially bound by middle bleed wall and an outer bleed wall. Airflow restrictor may include an outlet area smaller than an inlet area of inner passage. Door seals against middle bleed wall to open inner passage and against outer bleed wall to open both passages.
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公开(公告)号：US10443626B2
公开(公告)日：2019-10-15
申请号：US15070418
申请日：2016-03-15
Applicant: General Electric Company
Inventor： Mark Joseph Mielke , Peter John Wood , Brian Richard Green , Steven Mitchell Taylor , Curtis Moeckel , Mark Joseph Frisch , Joseph Michael Bruni
Abstract: A circular row of non-uniformally spaced vanes includes only one first group and only one second group of adjacent vanes, unequal first and second spacing between adjacent vanes in the first and second groups, and first spacing greater than second spacing. An embodiment with second group including only three adjacent vanes. Second spacing may be about 25%-35% smaller than a nominal uniform spacing used as a design parameter for designing spacing of the non-uniformly spaced stator vanes. Circular row may be sectored. A gas turbine engine section may include one or more rings or circular rows of fixed and/or variable non-uniformally spaced vanes. Method for designing non-uniform vane spacing for circular row includes determining nominal uniform spacing and forming first spacing and second spacing from nominal uniform spacing of vanes.
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公开(公告)号：US10408217B2
公开(公告)日：2019-09-10
申请号：US15070268
申请日：2016-03-15
Applicant: General Electric Company
Abstract: An apparatus and method of controlling a multi-stage compressor of a gas turbine engine having a front-block of stages with variable stator vanes (VSVs), a rear block of stages downstream of the front-block, and a bleed air off-take from at least one of the stages. The method includes sensing the pressure of the bleed air from the bleed air off-take and adjusting the position of the VSV for the front-block.
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Patent Agency Ranking
公开(公告)号：US20170268537A1
公开(公告)日：2017-09-21
申请号：US15070418
申请日：2016-03-15
Applicant: General Electric Company
Inventor： Mark Joseph Mielke , Peter John Wood , Brian Richard Green , Steven Mitchell Taylor , Curtis Moeckel , Mark Joseph Frisch , Joseph Michael Bruni
CPC classification number: F04D29/666 , F01D9/041 , F01D9/042 , F04D29/328 , F04D29/542 , F05D2220/32 , F05D2240/12 , F05D2240/128 , F05D2250/30 , F05D2260/961
Abstract: A circular row of non-uniformally spaced vanes includes only one first group and only one second group of adjacent vanes, unequal first and second spacing between adjacent vanes in the first and second groups, and first spacing greater than second spacing. An embodiment with second group including only three adjacent vanes. Second spacing may be about 25%-35% smaller than a nominal uniform spacing used as a design parameter for designing spacing of the non-uniformly spaced stator vanes. Circular row may be sectored. A gas turbine engine section may include one or more rings or circular rows of fixed and/or variable non-uniformally spaced vanes. Method for designing non-uniform vane spacing for circular row includes determining nominal uniform spacing and forming first spacing and second spacing from nominal uniform spacing of vanes.
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公开(公告)号：US10221859B2
公开(公告)日：2019-03-05
申请号：US15018126
申请日：2016-02-08
Applicant: General Electric Company
Inventor： Curtis William Moeckel , Peter John Wood , Matthew Ford Adam , Eric Andrew Falk , Mark Joseph Stecher
IPC: F04D29/32
Abstract: An airfoil for a compressor blade of a gas turbine engine has a chord between a leading edge and a trailing edge and a span between a root and a tip. The airfoil can further include a reduction in local chord from about 75% span to the tip for about a 5% reduction in local solidity. The airfoil can have decreasing sweep angles for the leading edge and the trailing edge from 50% span to the tip and can have decreasing leading and trailing edge dihedral angles from 50% span to the tip.
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公开(公告)号：US20170268520A1
公开(公告)日：2017-09-21
申请号：US15070268
申请日：2016-03-15
Applicant: General Electric Company
CPC classification number: F04D27/002 , F02C9/18 , F02C9/20 , F04D27/001 , F04D27/0223 , F04D27/023 , F04D27/0246 , F05D2220/32 , F05D2220/3219 , F05D2270/1024 , F05D2270/3011 , F05D2270/3013 , F05D2270/3015 , F05D2270/304
Abstract: An apparatus and method of controlling a multi-stage compressor of a gas turbine engine having a front-block of stages with variable stator vanes (VSVs), a rear block of stages downstream of the front-block, and a bleed air off-take from at least one of the stages. The method includes sensing the pressure of the bleed air from the bleed air off-take and adjusting the position of the VSV for the front-block.
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公开(公告)号：US20170227016A1
公开(公告)日：2017-08-10
申请号：US15018126
申请日：2016-02-08
Applicant: General Electric Company
Inventor： Curtis William Moeckel , Peter John Wood , Matthew Ford Adam , Eric Andrew Falk , Mark Joseph Stecher
IPC: F04D29/32
CPC classification number: F04D29/324 , F01D5/141 , F05D2240/303 , F05D2240/304 , Y02T50/673
Abstract: An airfoil for a compressor blade of a gas turbine engine has a chord between a leading edge and a trailing edge and a span between a root and a tip. The airfoil can further include a reduction in local chord from about 75% span to the tip for about a 5% reduction in local solidity. The airfoil can have decreasing sweep angles for the leading edge and the trailing edge from 50% span to the tip and can have decreasing leading and trailing edge dihedral angles from 50% span to the tip.
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公开(公告)号：US20140109589A1
公开(公告)日：2014-04-24
申请号：US13657193
申请日：2012-10-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Byron Andrew Pritchard, JR. , Charles Daniel Califf , Peter John Wood , Raymond Gust Holm , Allan George van de Wall , Peter Alfred Pezzi
CPC classification number: F02C7/052 , F02C6/08 , F02C7/28 , F02C9/18 , F02C9/28 , F02K3/075 , F04D27/0215 , F04D27/023 , F05D2260/606 , F05D2260/607
Abstract: A variable bleed valve includes a variable bleed valve door disposed in a bleed inlet in transition duct and rotatable about an axis at or near a forward end of door. Valve is operable to open and close a bleed slot open to a booster bleed flowpath located outwardly of transition duct and having an airflow restrictor. Airflow restrictor may be variable such as a flapper valve. Booster bleed flowpath may pass through a bifurcated bleed duct including an inner passage radially bound by spaced apart inner and middle bleed walls and an outer passage radially bound by middle bleed wall and an outer bleed wall. Airflow restrictor may include an outlet area smaller than an inlet area of inner passage. Door seals against middle bleed wall to open inner passage and against outer bleed wall to open both passages.
Abstract translation: 可变放气阀包括可变放气阀门，其设置在过渡管道中的放气入口中并且可绕门的前端处或附近的轴线旋转。 阀可操作以打开和关闭通向位于过渡管道外侧并具有气流限制器的增压器泄放流路的泄放槽。 气流限制器可能是可变的，例如挡板阀。 助推器排出流路可以穿过分叉的排放管道，包括通过间隔开的内部和中部排泄壁径向界定的内部通道和由中间渗血壁和外部渗出壁径向界定的外部通道。 气流限制器可以包括小于内通道入口面积的出口面积。 门密封抵抗中间渗水壁，打开内部通道并抵靠外部渗水壁打开两个通道。
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