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公开(公告)号：EP3369893A1
公开(公告)日：2018-09-05
申请号：EP18155134.2
申请日：2018-02-05
申请人： Rolls-Royce plc
发明人： Northall, Richard , Rae, Anthony J , Krautheim, Michael S , Walker, Alastair D , Carrotte, Jonathan F , Mariah, Ian
摘要： An annular array of turning vanes 200 is provided in a duct 100 of a gas turbine engine 10. The annular array of turning vanes 200 comprises aerodynamic vanes 220 and strut-vanes 240. The strut-vanes 240 have greater chord length and extend further axially downstream than the aerodynamic vanes 220. The leading edge of the strut-vanes 240 is upstream of the trailing edge of the aerodynamic vanes 220. The strut-vanes provide flow turning. The arrangement allows the duct 100 to be axially short.
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公开(公告)号：EP3369893B1
公开(公告)日：2019-12-18
申请号：EP18155134.2
申请日：2018-02-05
申请人： Rolls-Royce plc
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公开(公告)号：EP3369891A1
公开(公告)日：2018-09-05
申请号：EP18155136.7
申请日：2018-02-05
申请人： Rolls-Royce plc
发明人： Northall, Richard , Rae, Anthony J , Krautheim, Michael S , Walker, Alastair D , Carrotte, Jonathan F , Mariah, Ian
CPC分类号： F01D9/041 , F01D5/141 , F01D5/142 , F01D9/023 , F01D9/065 , F02K3/04 , F05D2220/323 , F05D2220/50 , F05D2240/128 , F05D2240/129 , Y02T50/671 , Y02T50/673
摘要： An annular array of turning vanes 200 is provided in a duct 100 of a gas turbine engine 10. The annular array of turning vanes 200 comprises aerodynamic vanes 220 and strut-vanes 240. The strut-vanes 240 have greater chord length and extend further axially downstream than the aerodynamic vanes 220. The leading edge of the strut-vanes 240 is upstream of the trailing edge of the aerodynamic vanes 220. The strut-vanes provide flow turning. The space to chord ratio of the aerodynamic vanes that are closest to the suction surface of a strut-vane is higher than the space to chord ratio of aerodynamic vanes that are closest to a pressure surface of the strut-vane. The arrangement allows the duct 100 to be axially short.
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