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公开(公告)号:US20060078422A1
公开(公告)日:2006-04-13
申请号:US10963185
申请日:2004-10-12
申请人: Mark Morris , Thomas Strangman , Craig Wilson , George Wolfmeyer , Steve Halfmann , David Jan
发明人: Mark Morris , Thomas Strangman , Craig Wilson , George Wolfmeyer , Steve Halfmann , David Jan
IPC分类号: F01D9/00
CPC分类号: F01D5/005 , F01D5/141 , F01D9/041 , F05D2230/10 , F05D2230/90 , Y10T29/49323
摘要: A method of modifying a turbine nozzle area comprises depositing a thermal barrier coating (TBC) on the nozzle endwalls to provide a minimum nozzle area, evaluating an airflow through the nozzle, and machining the TBC to increase the nozzle area. Adjacent segment area variation may be minimized, improving engine reliability by reducing the aerodynamic excitation to the down stream blade.
摘要翻译: 改进涡轮喷嘴区域的方法包括在喷嘴端壁上沉积热障涂层(TBC)以提供最小喷嘴面积,评估通过喷嘴的气流,以及加工TBC以增加喷嘴面积。 相邻段区域变化可以被最小化,通过减小对下游叶片的空气动力学激励来提高发动机的可靠性。
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2.
公开(公告)号:US20050123389A1
公开(公告)日:2005-06-09
申请号:US10729695
申请日:2003-12-04
申请人: Mark Morris , William Howe , George Zurmehly , Alan Tiltman , George Wolfmeyer , John Sciacca
发明人: Mark Morris , William Howe , George Zurmehly , Alan Tiltman , George Wolfmeyer , John Sciacca
CPC分类号: F01D25/12 , F01D9/04 , F01D11/005 , F01D11/10 , F05D2230/12 , F05D2240/11 , F05D2240/81 , F05D2250/29 , F05D2260/202 , Y02T50/67 , Y02T50/676
摘要: A cooled shroud assembly includes an angled slot and a plurality of dilution jet openings. The shroud forward cavity is modified such that at least one recirculation zone is produced. The angled slot forces an axial change in momentum of the hot gas flow and increases radial and axial pressure variation attenuation. The cooled shroud assembly isolates the shroud structure and seals from the hot flow path and a cooling flow from the dilution jet openings dilutes the hot gas flow. A series of recirculation zones shields the shroud carrier and high pressure seals from the hot gas flow.
摘要翻译: 冷却的护罩组件包括成角度的槽和多个稀释喷射开口。 护罩前腔被修改为使得至少一个再循环区被产生。 倾斜的狭槽迫使热气流动力的轴向变化,并增加径向和轴向的压力变化衰减。 冷却的护罩组件将护罩结构和密封件与热流路隔离,并且来自稀释喷射口的冷却流量稀释热气流。 一系列再循环区域将护罩载体和高压密封件与热气流屏蔽。
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