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公开(公告)号：US20180258787A1
公开(公告)日：2018-09-13
申请号：US15451836
申请日：2017-03-07
发明人： Nicole Jessica TIBBETTS , Bernard Patrick BEWLAY , Ambarish Jayant KULKARNI , Byron Andrew PRITCHARD, JR. , Keith Anthony LAURIA , Michael Edward ERIKSEN
摘要： The present disclosure provides methods and systems of generating flows of detergent through a turbine engine to effectuate cleaning of components thereof. The methods include introducing a foamed, acid-including detergent with a pH range of between 2 and 7 into a gas flowpath of the turbine engine. The methods also include creating a pressure differential in an aft portion of the gas flowpath with respect to a forward portion of the gas flowpath to generate a flow of the detergent therethrough. The methods further include creating a pressure differential in a forward portion of the gas flowpath with respect to an aft portion of the gas flowpath to generate a counterflow of the detergent therethrough. The flow and counterflow of the detergent through the gas flowpath interact with components of the turbine engine having foreign material thereon to at least partially remove the foreign material therefrom.
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公开(公告)号：US20160016196A1
公开(公告)日：2016-01-21
申请号：US14867525
申请日：2015-09-28
发明人： Qi ZHAO , Robert John ZABALA , Laurent CRETEGNY , Jeffrey Jon SCHOONOVER , Mark Kevin MEYER , Keith Anthony LAURIA , William R. CATLIN
IPC分类号： B05D1/26
CPC分类号： B05D1/26 , B05C5/001 , B22D19/10 , B23K3/0638
摘要： A method for joining a filler material to a substrate material includes melting the filler material within a melting chamber of a crucible such that the filler material is molten. The crucible has an outlet fluidly connected to the melting chamber. The method also includes holding the filler material within the melting chamber of the crucible by applying a first pressure differential across the outlet of the crucible, and releasing the filler material from the melting chamber of the crucible by applying a second pressure differential across the outlet of the crucible to deliver the filler material to a target site of the substrate material. The second pressure differential has a different value than the first pressure differential.
摘要翻译： 将填充材料接合到基板材料的方法包括在坩埚的熔融室内熔化填充材料，使得填充材料熔融。 坩埚具有流体连接到熔化室的出口。 该方法还包括通过在坩埚的出口处施加第一压力差来将填料材料保持在坩埚的熔化室内，并且通过在坩埚的出口处施加第二压差来从坩埚的熔化室释放填充材料 坩埚将填充材料输送到基材材料的靶位置。 第二压力差具有与第一压差不同的值。
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公开(公告)号：US20180094538A1
公开(公告)日：2018-04-05
申请号：US15274613
申请日：2016-09-23
发明人： Nicole Jessica TIBBETTS , Bernard Patrick BEWLAY , Byron Andrew PRITCHARD, JR. , Brian Michael ELLIS , Michael Edward ERIKSEN , Keith Anthony LAURIA
CPC分类号： F01D25/002 , B08B3/04 , B08B7/00 , B08B9/00 , B08B9/02 , B08B9/027 , C11D1/10 , C11D1/72 , C11D3/2086 , C11D3/30 , C11D3/349 , C11D11/0041 , C11D11/0058 , C23G1/02 , C23G1/061 , C23G1/088 , F02C3/04 , F05D2230/72 , Y02T50/672
摘要： The present disclosure provides methods and systems for in situ cleaning of hot gas flowpath components of a turbine engine that form portions of a hot gas flowpath extending through the turbine. The hot gas flowpath components may include a layer of accumulated contaminants on first portions thereof that form a respective portion of the hot gas flowpath. The first portions may include a thermal battier coating (TBC), and the layer of accumulated contaminants may overlie the TBC and at least partially infiltrate into the TBC. The accumulated contaminants may include CaO—MgO—Al2O3-SiO2 (CMAS) partial melt. The methods may include introducing an acid-including detergent into the hot gas flowpath of the turbine engine and onto the hot gas flowpath components to clean the accumulated contaminants from the first surfaces of the components.
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