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公开(公告)号：US10968771B2
公开(公告)日：2021-04-06
申请号：US15405016
申请日：2017-01-12
Applicant: General Electric Company
Abstract: A method and icing effects mitigation system are provided. The icing effects mitigation system includes a fluid duct configured to channel a first flow of fluid through the fluid duct from a duct opening to a rotatable member at least partially positioned within the fluid duct. The rotatable member includes a radially inner rotatable portion and a radially outer rotatable portion. The icing effects mitigation system also includes a duct member extending through the fluid duct in a direction approximately orthogonal to a direction of the first flow of fluid. The duct member is configured to channel a second flow of a second fluid therethrough that causes ice accreted on the duct member to shed on a trajectory that impacts the rotatable member at the radially inner portion.
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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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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：US20180195408A1
公开(公告)日：2018-07-12
申请号：US15405016
申请日：2017-01-12
Applicant: General Electric Company
Abstract: A method and icing effects mitigation system are provided. The icing effects mitigation system includes a fluid duct configured to channel a first flow of fluid through the fluid duct from a duct opening to a rotatable member at least partially positioned within the fluid duct. The rotatable member includes a radially inner rotatable portion and a radially outer rotatable portion. The icing effects mitigation system also includes a duct member extending through the fluid duct in a direction approximately orthogonal to a direction of the first flow of fluid. The duct member is configured to channel a second flow of a second fluid therethrough that causes ice accreted on the duct member to shed on a trajectory that impacts the rotatable member at the radially inner portion.
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