公开(公告)号：US20150176590A1

公开(公告)日：2015-06-25

申请号：US14563516

申请日：2014-12-08

申请人： ROLLS-ROYCE PLC

发明人： Oliver C TAYLOR-TIBBOTT

IPC分类号： F04D27/02 ,  F02C9/18 ,  F02C7/24

CPC分类号： F04D27/0215 ,  F02C6/08 ,  F02C7/045 ,  F02C7/24 ,  F02C9/18 ,  F02C9/52 ,  F02K3/075 ,  F05B2260/962 ,  F05B2260/964 ,  F05B2260/966 ,  F05D2210/33 ,  F05D2250/512 ,  F05D2260/96 ,  Y02T50/671 ,  Y10T29/49323

摘要： A noise attenuation panel for a bleed flow is presented that causes a total pressure loss of the bleed flow before it is exhausted. The total pressure loss results from at least two regions in which the flow area contracts and then rapidly expands, with the rapid expansion causing mixing and turbulence rather than full total pressure recovery. This reduced pressure means that when the flow is exhausted into a flow (which may be the bypass flow of a gas turbine engine), its energy, and thus its noise, are reduced.

摘要翻译： 提出了一种用于泄放流量的噪声衰减面板，其在排气之前导致排放流量的总压力损失。 总压力损失是由至少两个区域产生的，其中流动区域收缩然后迅速膨胀，随着快速膨胀引起混合和湍流，而不是全部全压恢复。 这种减压意味着当流量被排放到流动（其可以是燃气涡轮发动机的旁路流）时，其能量以及因此的噪声被减小。

公开(公告)号：US06200087B1

公开(公告)日：2001-03-13

申请号：US09309015

申请日：1999-05-10

申请人： Stephen K. Tung ,  Robert B. Solda ,  Robert F. Manning

发明人： Stephen K. Tung ,  Robert B. Solda ,  Robert F. Manning

IPC分类号： F01D514

CPC分类号： F01D5/186 ,  F01D5/187 ,  F05D2250/323 ,  F05D2250/512 ,  F05D2260/202 ,  F05D2260/22141 ,  Y02T50/676

摘要： A turbine nozzle includes inner and outer bands having respective air inlets. A plurality of hollow vanes are integrally joined to the bands in flow communication with the inlets. Each vane includes first and second cooling channels extending between the bands which are separated by an inclined septum which converges the two channels away from the corresponding inlets for reducing pressure drop as the cooling air is discharged.

摘要翻译： 涡轮喷嘴包括具有相应空气入口的内部和外部带。 多个中空叶片与入口成一体地连接到带状物上。 每个叶片包括在带之间延伸的第一和第二冷却通道，所述第一和第二冷却通道由倾斜的隔膜分开，倾斜的隔膜将两个通道会聚到远离相应的入口的位置，以在冷却空气排出时减小压降。

公开(公告)号：US20180356157A1

公开(公告)日：2018-12-13

申请号：US16003149

申请日：2018-06-08

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Romain Jean-Claude FERRIER ,  Irwin KERNEMP ,  Jonathan David Robert LANGRIDGE

IPC分类号： F28D1/02 ,  F28F9/00

CPC分类号： F28D1/0233 ,  F01D25/12 ,  F02C7/06 ,  F02C7/18 ,  F05D2220/323 ,  F05D2250/512 ,  F05D2260/20 ,  F05D2260/213 ,  F05D2260/97 ,  F05D2260/98 ,  F28D2021/0021 ,  F28D2021/0049 ,  F28F9/001

摘要： A heat exchanger designed to be fixed to a turbomachine wall delimiting a gas flow stream, this exchanger including a body with a front face through which the gas flow passes; an attachment face to the wall; an external face opposite the attachment face and connected to the front face; two lateral faces connected to the front face; a cover surrounding the front face and extending along the prolongation of the external face and the lateral faces, to delimit an intake with an area smaller than the area of the front face, this intake being located upstream from the front face relative to the gas flow stream.

公开(公告)号：US09964114B2

公开(公告)日：2018-05-08

申请号：US14563516

申请日：2014-12-08

申请人： ROLLS-ROYCE PLC

发明人： Oliver C Taylor-Tibbott

IPC分类号： F02C6/08 ,  F04D27/02 ,  F02C9/52 ,  F02C7/045 ,  F02K3/075 ,  F02C7/24 ,  F02C9/18

CPC分类号： F04D27/0215 ,  F02C6/08 ,  F02C7/045 ,  F02C7/24 ,  F02C9/18 ,  F02C9/52 ,  F02K3/075 ,  F05B2260/962 ,  F05B2260/964 ,  F05B2260/966 ,  F05D2210/33 ,  F05D2250/512 ,  F05D2260/96 ,  Y02T50/671 ,  Y10T29/49323

摘要： A noise attenuation panel for a bleed flow is presented that causes a total pressure loss of the bleed flow before it is exhausted. The total pressure loss results from at least two regions in which the flow area contracts and then rapidly expands, with the rapid expansion causing mixing and turbulence rather than full total pressure recovery. This reduced pressure means that when the flow is exhausted into a flow (which may be the bypass flow of a gas turbine engine), its energy, and thus its noise, are reduced.