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公开(公告)号：US10753225B2
公开(公告)日：2020-08-25
申请号：US15475890
申请日：2017-03-31
申请人： The Boeing Company
摘要： Pressurized fluid is stored while a jet engine is running. After engine shutdown, the fluid is used to drive a pneumatic or hydraulic turning motor that rotates the engine's High Pressure (HP) rotor. The rotation encourages even heat distribution across the HP rotor and thus prevents bowing of the HP rotor.
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公开(公告)号：US10427632B2
公开(公告)日：2019-10-01
申请号：US15475987
申请日：2017-03-31
申请人： The Boeing Company
摘要： The present disclosure describes ventilation systems having a reduced aerodynamic footprint. The vents in the ventilation systems are actuated with Shape Memory Alloys that actuate the vents on an as needed basis while effectively sealing the vents when not in operation. The present disclosure further describes a ventilation system in an aircraft nacelle that helps mitigate bowed rotors by cooling down the engine nacelle faster or by helping create a uniform temperature distribution in the nacelle. In various embodiments, the ventilation system comprises vents and fans embedded in the vents.
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公开(公告)号：US10378442B2
公开(公告)日：2019-08-13
申请号：US15475791
申请日：2017-03-31
申请人： The Boeing Company
IPC分类号： F02C6/14 , F02C7/20 , F02C9/26 , F01D25/34 , F02K3/06 , F02C3/107 , F02C7/32 , F02C7/36 , B64D27/10
摘要： A mechanical flywheel used to power an aircraft system. In one example, the flywheel is used to rotate a rotor shaft in the aircraft's engine and prevent bowing of the rotor shaft caused by a thermal gradient. In another example, the mechanical flywheel provides electrical power at peak demand times. In yet another example, the flywheel is used as a load source or sink by the engine's control system so as to aid engine operability and engine acceleration rates during abnormal flight conditions.
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公开(公告)号：US20170218882A1
公开(公告)日：2017-08-03
申请号：US15009298
申请日：2016-01-28
申请人： The Boeing Company
CPC分类号： F02K1/18 , F02K1/06 , F02K1/12 , F02K1/15 , F05D2220/32 , F05D2270/051 , F05D2270/804 , F05D2270/808 , G01B11/24 , G01L1/242 , G01L1/246
摘要： A control system for a variable area fan nozzle (VAFN) having a plurality of petals is disclosed. The control system may include at least one fiber optic shape sensor extending along at least one of the plurality of petals, and a light source operatively connected to the at least one fiber optic shape sensor. The control system may further include a receiver operatively connected to the at least one fiber optic shape sensor. The control system may further include a VAFN control unit in operative communication with the plurality of petals and the receiver. The VAFN control unit may be configured to receive a signal from the receiver indicative of the measured strain along the at least one fiber optic shape sensor, and calculate a nozzle area of the VAFN based on the measured strain.
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公开(公告)号：US10472060B2
公开(公告)日：2019-11-12
申请号：US15428767
申请日：2017-02-09
申请人： The Boeing Company
摘要： Methods, apparatus, and articles of manufacture to monitor a shock wave proximate a surface of an aircraft are disclosed. An example apparatus includes a first camera at a first location on an aircraft to capture a first image of a surface of the aircraft during a first time period, and capture a second image of the surface during a second time period, a second camera at a second location to capture a third image of the surface during the first time period, and capture a fourth image of the surface during the second time period. The example apparatus further includes a position calculator to identify a first position of a shock wave based on the first and third images, and a second position based on the second and fourth images, and calculate a difference between the first and the second positions, and a command generator to generate a command to control at least one of an actuator and a control surface based on the difference.
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公开(公告)号：US10252808B2
公开(公告)日：2019-04-09
申请号：US15639917
申请日：2017-06-30
申请人： The Boeing Company
IPC分类号： B64D15/22 , B64D15/08 , F04F5/14 , G01F1/58 , G01R33/12 , G01S7/497 , B64D15/20 , F04F5/24 , G01S17/42 , G01S17/88 , G01S7/499
摘要： Method and system to sense ice protection fluid and verify a Fluid Ice Protection System (FIPS) is distributing the ice protection fluid correctly.
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公开(公告)号：US20180283274A1
公开(公告)日：2018-10-04
申请号：US15475791
申请日：2017-03-31
申请人： The Boeing Company
CPC分类号： F02C6/14 , B64D27/16 , B64D41/00 , B64D2221/00 , F01D25/34 , F02C3/107 , F02C7/20 , F02C7/32 , F02C7/36 , F02C9/26 , F02K3/06 , F05D2220/323 , F05D2260/43 , F05D2260/941 , Y02T50/672
摘要： A mechanical flywheel used to power an aircraft system. In one example, the flywheel is used to rotate a rotor shaft in the aircraft's engine and prevent bowing of the rotor shaft caused by a thermal gradient. In another example, the mechanical flywheel provides electrical power at peak demand times. In yet another example, the flywheel is used as a load source or sink by the engine's control system so as to aid engine operability and engine acceleration rates during abnormal flight conditions.
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公开(公告)号：US09803586B1
公开(公告)日：2017-10-31
申请号：US15169155
申请日：2016-05-31
申请人： The Boeing Company
CPC分类号： F02K1/18 , B64D45/00 , F01D21/003 , F01D25/24 , F02K1/12 , F05D2220/32 , F05D2240/128 , F05D2270/3013 , F05D2270/332 , F05D2270/334 , F05D2270/62 , F05D2270/708 , F05D2270/709 , F05D2270/71 , G01H9/00
摘要： A control system for a variable area fan nozzle (VAFN) is disclosed. The VAFN may have a plurality of petals and may be for use with a gas turbine engine. The control system may include a primary system configured to acquire primary data indicative of an operating condition of the VAFN, a secondary system configured to acquire secondary data indicative of a current operating condition of the gas turbine engine, and a control module in operative communication with the primary system and the secondary system. The control module may be configured to: determine a nozzle area of the VAFN based at least in part on the primary data, adjust the determined nozzle area based on the secondary data, and position the plurality of petals according to the adjusted nozzle area.
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公开(公告)号：US20190291884A1
公开(公告)日：2019-09-26
申请号：US15428767
申请日：2017-02-09
申请人： The Boeing Company
摘要： Methods, apparatus, and articles of manufacture to monitor a shock wave proximate a surface of an aircraft are disclosed. An example apparatus includes a first camera at a first location on an aircraft to capture a first image of a surface of the aircraft during a first time period, and capture a second image of the surface during a second time period, a second camera at a second location to capture a third image of the surface during the first time period, and capture a fourth image of the surface during the second time period. The example apparatus further includes a position calculator to identify a first position of a shock wave based on the first and third images, and a second position based on the second and fourth images, and calculate a difference between the first and the second positions, and a command generator to generate a command to control at least one of an actuator and a control surface based on the difference.
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公开(公告)号：US10279918B2
公开(公告)日：2019-05-07
申请号：US15253306
申请日：2016-08-31
申请人： The Boeing Company
摘要： Methods and apparatus to control thrust ramping of an aircraft engine are disclosed. An example thrust control system includes a sensor to measure a crosswind speed and a thrust manager to compare the measured crosswind speed to a crosswind threshold range. The thrust manager activates a partial thrust ramping schedule during takeoff when the measured crosswind speed is within the crosswind threshold range. The partial thrust ramping schedule is selected from a plurality of thrust ramping schedules.
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