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公开(公告)号：EP4279726A1
公开(公告)日：2023-11-22
申请号：EP23174188.5
申请日：2023-05-18
申请人： RTX Corporation
摘要： A power extraction system (100) for a gas turbine engine (20) may comprise a low spool transmission (72) and a low spool accessory gearbox (70). The low spool accessory gearbox may comprise a generator (76) and a dual clutch transmission. The dual clutch transmission may be coupled between the low spool transmission and the generator.
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公开(公告)号：EP4273381A1
公开(公告)日：2023-11-08
申请号：EP23171724.0
申请日：2023-05-04
申请人： RTX Corporation
摘要： A gas turbine engine (10) includes a first spool (16) associated with a primary combustor (70), a second spool (12) associated with a secondary combustor (84), and a third spool (14), each spool (12) including a compressor (24, 74, 18) and a turbine (26, 82, 20) mounted to a shaft (28, 76, 22). A transmission (400) and accessory gearing (402) are enclosed within a housing (420) of an accessory gearbox (422). The transmission (400) rotationally couples the third spool (14) to the second spool (12) and accessory gearing (402). A method of operating the gas turbine engine (10) includes supplying a first fuel flow rate to the primary combustor (70) and supplying a second fuel flow rate to the secondary combustor (84) within an intermediate speed range of the gas turbine engine (10).
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公开(公告)号：EP4273380A1
公开(公告)日：2023-11-08
申请号：EP23171725.7
申请日：2023-05-04
申请人： RTX Corporation
摘要： A gas turbine engine (10) includes a first spool (16) rotationally coupled to a plurality of accessories via a first gearing (224, 226) and a second spool (12) rotationally coupled to a third spool (14) via a second gearing (210, 212). The first gearing (224, 226) and the second gearing (210, 212) rotate independently and are enclosed within a housing of an accessory gearbox. A method of operating the gas turbine engine (10) includes supplying a first fuel flow rate to a primary combustor (70) associated with the first and third spools and supply a second fuel flow rate a secondary combustor (84) associated with the second spool (12) based on a power lever angle within an intermediate power level range.
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公开(公告)号：EP4407159A3
公开(公告)日：2024-10-02
申请号：EP24182404.4
申请日：2023-05-18
申请人： RTX Corporation
CPC分类号： F02C7/36 , F05D2220/7620130101 , F02C7/32 , F01D15/10 , F02C3/107 , F05D2260/4220130101 , F05D2270/30320130101
摘要： A power extraction system (100) for a gas turbine engine (20) may comprise a low spool transmission (72) and a low spool accessory gearbox (70). The low spool accessory gearbox may comprise a generator (76) and a dual clutch transmission. The dual clutch transmission may be coupled between the low spool transmission and the generator.
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公开(公告)号：EP4365429A1
公开(公告)日：2024-05-08
申请号：EP23208062.2
申请日：2023-11-06
申请人： RTX Corporation
CPC分类号： F02C3/107 , F02C7/36 , F05D2260/4031120130101 , F05D2260/90220130101 , F05D2260/402320130101 , F02K3/072
摘要： An aircraft assembly includes a geartrain (72) with a first gear system (94) and a second gear system (96). The first gear system (94) includes a first sun gear (98), a first ring gear (100), a plurality of first intermediate gears (102) and a first carrier (104). The first sun gear (98) and the first ring gear (100) are each rotatable about an axis (28,40,106). The first intermediate gears (102) are between and meshed with the first sun gear (98) and the first ring gear (100). Each of the first intermediate gears (102) is rotatably mounted to the first carrier (104). The second gear system (96) is interconnected with the first gear system (94). The second gear system (96) includes a second sun gear (108), a second ring gear (110), a plurality of second intermediate gears (112) and a second carrier (114). The second intermediate gears (112) are between and meshed with the second sun gear (108) and the second ring gear (110). Each of the second intermediate gears (112) is rotatably mounted to the second carrier (114).
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公开(公告)号：EP4273390A2
公开(公告)日：2023-11-08
申请号：EP23171720.8
申请日：2023-05-04
申请人： RTX Corporation
摘要： A gas turbine engine (10) includes a first spool (16), a second spool (12), a third spool (14), and an epicyclic differential. The epicyclic differential includes a sun gear, planet gears supported from a planet carrier, a ring gear, and a locking member, each housed within an accessory gearbox. The planet carrier couples to the second spool (12). The sun gear couples to the third spool (14), and the ring gear couples to engine accessories. A method of operating the gas turbine engine (10) includes supplying a first fuel flow (58) rate to a primary combustor (70) associated with the first (16) and third (14) spools and supplying a second fuel flow (58) rate to a secondary combustor (84) associated with the second spool (12) based on a power lever angle within an intermediate power level range.
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