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公开(公告)号：EP4455556A1
公开(公告)日：2024-10-30
申请号：EP24165792.3
申请日：2024-03-25
申请人： Rolls-Royce plc
发明人： Harding, Stephen , Brewster, James
IPC分类号： F23R3/00
摘要： A component (100) for a hot section of an engine (16) comprises a substrate (101) and an infrared-reflective layer (105) configured to reflect infrared radiation away from the substrate (101).
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公开(公告)号：EP4431815A3
公开(公告)日：2024-10-23
申请号：EP24157231.2
申请日：2024-02-13
申请人： Rolls-Royce plc
发明人： Bellis, Mark
摘要： A method (100) for detecting a burner failure in a gas turbine engine (10) that has a combustor (16) and a turbine (40) disposed downstream of the combustor (16). The combustor (16) has a plurality of burners (50) arranged annularly. The method (100) includes providing a plurality of temperature sensors (60) arranged annularly at an outlet (45) of the turbine (40); obtaining a plurality of temperature signals (62) from the plurality of temperature sensors (60); determining a plurality of validated temperature signals (64) from the plurality of temperature signals (62); determining a temperature focus (65) at least based on the plurality of validated temperature signals (64); improving the temperature focus (65) such that the temperature focus (65) is within a tolerance range (66); and performing at least one hazard protection action (90) at least when the temperature focus (65) crosses a predetermined threshold (68).
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公开(公告)号：EP4446658A1
公开(公告)日：2024-10-16
申请号：EP24160748.0
申请日：2024-03-01
申请人： Rolls-Royce plc
发明人： Walters, Edward
摘要： A fuel injector (18) for a hydrogen combusting aircraft gas turbine engine has at least one air through-passage (44, 52) extending axially from a front face (40) to a rear face (54). The injector further comprises a fuel manifold (42) in communication with a hydrogen fuel feed line (38). A plurality of fuel outlets (64) is provided surrounding the or each air passage (44, 52) and an annular fuel gallery (76) is provided around each air through passage (44, 52) configured to supply the fuel outlets (64), the annular fuel gallery (76) communicating with the fuel manifold (42).
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公开(公告)号：EP4428340A1
公开(公告)日：2024-09-11
申请号：EP24156979.7
申请日：2024-02-12
申请人： Rolls-Royce plc
发明人： Backhouse, Robert
CPC分类号： F01D5/282 , F01D5/34 , F05D2230/5020130101 , F05D2300/60320130101
摘要： A method (100) includes forming a moulded component (200) that is axisymmetric about a component axis (205); segmenting the moulded component (200) into a plurality of segments (210), each pair of adjacent segments (211) including a pair of surfaces (212) that is formed during segmentation of the moulded component (200); providing, via computerised numerical control machining, complementary finger joint profiles (215) on the pair of surfaces (212) of the each pair of adjacent segments (211); providing a plurality of slots (220) on at least one of the pair of surfaces (212) of the each pair of adjacent segments (211); positioning a plurality of blades (230) partially within the plurality of slots (220); mating the complementary finger joint profiles (215) provided on the pair of surfaces (212) of the each pair of adjacent segments (211); and joining the each pair of adjacent segments (211) to each other, such that the plurality of blades (230) is retained within the plurality of slots (220).
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公开(公告)号：EP4425141A1
公开(公告)日：2024-09-04
申请号：EP24155168.8
申请日：2024-02-01
申请人： Rolls-Royce plc
CPC分类号： F01D21/003 , G01M15/14 , G01M7/022
摘要： Described herein is a non-contact excitation system for a spin rig comprising: a plurality of test piece elements for attachment to a test piece for rotation about an axis of rotation of the spin rig; and a plurality of exciter elements arranged around the axis of rotation, wherein the test piece elements and the exciter elements are magnetically attractive; wherein the test piece elements and/or the exciter elements comprise magnets; and wherein, in use, the exciter elements are arranged around the test piece; wherein each exciter element is axially and radially offset from the plurality of test piece elements. Also described is a method of testing a test piece using the system.
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公开(公告)号：EP4425140A1
公开(公告)日：2024-09-04
申请号：EP24155167.0
申请日：2024-02-01
申请人： Rolls-Royce plc
摘要： Described herein is a non-contact excitation system for a spin rig comprising: a plurality of test piece elements for attachment to a test piece for rotation about an axis of rotation of the spin rig; and a plurality of exciter elements arranged around the axis of rotation, wherein the test piece elements and the exciter elements are magnetically attractive; wherein the test piece elements and/or the exciter elements comprise magnets; each exciter element being moveable between an active position, in which a magnetic force is provided between each exciter element and at least one of the test piece elements, and an inactive position, in which the magnetic force between the exciter magnets and the at least one test piece element is reduced. Also described herein is a method of testing a test piece using the system.
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公开(公告)号：EP4421292A1
公开(公告)日：2024-08-28
申请号：EP24154325.5
申请日：2024-01-29
申请人： Rolls-Royce plc
发明人： Mulcahy, Thomas M
CPC分类号： C23C28/3215 , C23C28/3455 , C23C28/34 , F01D5/288 , F05D2300/211820130101 , F05D2250/1820130101 , F05D2250/2820130101 , F05D2250/28320130101 , F05D2250/28220130101 , F05D2250/22120130101 , F05D2250/24120130101 , F05D2250/2420130101 , F05D2250/23120130101 , F05D2250/23220130101 , F05D2230/7220130101 , F05D2230/9020130101 , F01D25/002 , F01D5/005 , F05D2230/8020130101 , B08B3/02
摘要： A coating system (100) includes a bond layer (110) including CoNiCrAlY; a thermal barrier layer (120) at least partially disposed on the bond layer (110) and including yttria stabilised zirconia; a mesh layer (130) connecting the thermal barrier layer (120) to the bond layer (110) and including CoNiCrAlY; and an abradable layer (140) disposed on the thermal barrier layer (120) and including magnesium spinel. The mesh layer (130) includes a plurality of cells (131) connected to each other and is at least partially embedded in the thermal barrier layer (120). Each cell (131) defines a cell opening (132) therethrough and the cell opening (132) of each of the plurality of cells (131) at least partially receives the thermal barrier layer (120) therein. The abradable layer (140) and the thermal barrier layer (120) are at least partially removable from the mesh layer (130) and the bond layer (110) without damaging them.
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公开(公告)号：EP4418409A1
公开(公告)日：2024-08-21
申请号：EP24152511.2
申请日：2024-01-18
申请人： Rolls-Royce plc
发明人： Örökös-Tóth, István , Lorincz, Daniel , Hasznosi, Kolos , Anka, Mark , Lukacs, Andras , Dobson, Matthew , Charmer, Stene , Read, Elliott , Marco, James
IPC分类号： H01M10/617 , B60L50/64 , H01M10/625 , H01M10/643 , H01M10/6557 , H01M50/213 , H01M50/249
CPC分类号： H01M10/643 , H01M10/625 , H01M10/6557 , H01M2220/2020130101 , H01M50/213 , H01M50/249 , B60L50/64 , H01M10/617
摘要： Battery packs 100, which may be used in vehicles including aircraft 10, 20, are disclosed. One such battery pack 100 comprises: a plurality of cylindrical battery cells 101, each one of the plurality of cells 101 having a cylindrical outer cell wall 1010 that extends in a z-direction between opposed first and second ends of the cell 1011, 1012; a carrier structure 112 that locates the battery cells 101 relative to one another and arranges them in an array 1000 in an x-y plane perpendicular to the z-direction; and a plurality of barriers 102 for preventing propagation of thermal runaway between cells 101 of the array 1000, each one of the plurality of barriers 102 forming a barrier wall 1020 that surrounds a group of one or more of the cells 101. A gap is defined between the barrier wall 1020 of each respective barrier 102 and the outer cell wall 1010 of each of the respective one or more cells 101 enclosed by the respective barrier. The gap 103 may be sized to reduce a likelihood of a cell failure propagating to other cells 101 of the array 1000.
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公开(公告)号：EP4400750A1
公开(公告)日：2024-07-17
申请号：EP23215586.1
申请日：2023-12-11
申请人： Rolls-Royce plc
发明人： Carreno Del Pino, Jorge , Daginawalla, Hassan , Lawrence, Samuel , Nichols, Harry , Yeandel, Michael , Jones, Gareth
CPC分类号： F16K17/14 , F16K2200/20420210801 , F01D21/14
摘要： The present disclosure relates to a hydraulic fuse (30) comprising: a fuse body (32) defining a plenum (34), the plenum comprising: an inlet (35) configured to couple to a first fluid location (37); and an outlet (36) configured to couple to a second fluid location (38). The hydraulic fuse further comprises a first fuse element (39) arranged to close the inlet, the first fuse element configured to open the inlet when a pressure differential between the first fluid location and the plenum reaches a first threshold; and a second fuse element (40) arranged to close the outlet, the second fuse element configured to open the outlet when a pressure differential between the plenum and the second fluid location reaches a second threshold, wherein the first threshold is higher than the second threshold. In an inactive state, the inlet is closed by the first fuse element and the outlet is closed by the second fuse element to prevent fluid flow through the plenum; and in an active state, the pressure differential between the first fluid location and the plenum reaches the first threshold to cause the first fuse element to open and permit fluid flow through the inlet, and the pressure differential between the plenum and the second fluid location reaches the second threshold to cause the second fuse element to open and permit fluid flow through the outlet.
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公开(公告)号：EP4397967A1
公开(公告)日：2024-07-10
申请号：EP23214303.2
申请日：2023-12-05
申请人： Rolls-Royce plc
发明人： Mulloth, Akhil
IPC分类号： G01N23/046
CPC分类号： G01N23/046 , G01N2223/6320130101
摘要： There is provided a method for scanning of an object in a scanning apparatus. The method comprises placing the object into a jacket which surrounds the object or a part of the object to be scanned. The volume of the jacket surrounding the object is solid or filled with a filling material. The jacket is disposed on a support of the scanning apparatus, so that the jacket is positioned between an imaging beam emitting element and an imaging beam receiving element oppositely disposed to either side of the support. The support is rotatable relative to the emitting and receiving elements about an axis of rotation to allow creation of an image from projections each taken at a different relative angle of rotation. The method further comprises operating the scanning apparatus at the multiple relative angles of rotation to produce an image of the object.
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