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公开(公告)号:EP3613668B1
公开(公告)日:2024-10-02
申请号:EP19192515.5
申请日:2019-08-20
CPC分类号: B64C2001/007220130101 , B64D7/00 , B64C27/00 , B64D15/12 , B60H1/2227 , Y02T50/40 , B32B2607/0020130101 , B32B2307/3020130101 , B32B15/04 , B32B9/04 , B32B2307/55820130101 , B32B5/024 , B32B5/24 , B32B2260/02120130101 , B32B2471/0420130101 , B32B27/06 , B32B7/12 , B32B2262/026120130101 , B32B9/005 , B32B3/08 , B32B2260/04620130101 , B32B27/32 , B32B5/02 , B32B2571/0020130101 , B32B2605/00320130101 , B32B15/18 , B32B2307/20420130101
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公开(公告)号:EP4326612A1
公开(公告)日:2024-02-28
申请号:EP22724657.6
申请日:2022-04-21
申请人: Starcopter GmbH
发明人: NIEBUHR, Henner , FRÖHNER, Lasse
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公开(公告)号:EP4313760A1
公开(公告)日:2024-02-07
申请号:EP22719390.1
申请日:2022-03-18
申请人: Lolatchy, Schain
发明人: Lolatchy, Schain
IPC分类号: B64C27/00 , B64C27/04 , B64C27/26 , B64C31/032
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公开(公告)号:EP4091938B1
公开(公告)日:2023-12-13
申请号:EP22169155.3
申请日:2022-04-21
发明人: RUET, Laurent
IPC分类号: B64C27/68 , B64C27/605 , B64C13/00 , B64C27/00
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公开(公告)号:EP4250553A3
公开(公告)日:2023-11-08
申请号:EP23185268.2
申请日:2018-12-11
申请人: Wing Aviation LLC
发明人: PANTALONE, Giulia , WOODWORTH, Adam , TELLER, Eric , KIM, Ealgoo , HUFFMAN, Jacob , KUBIE, Martin
IPC分类号: G05D19/02 , H02P7/00 , B64D31/06 , B64C27/00 , B64C39/02 , B64D31/12 , B64U10/13 , B64U30/10 , B64U30/20 , B64U50/19 , H02P5/46 , B64U10/25
摘要: A technique of controlling tonal noises produced by an unmanned aerial vehicle (UAV) includes generating thrust with a plurality of rotor units mounted to the UAV to propel the UAV into flight. Each of the rotor units includes a bladed rotor. A rotation rate or a phase delay of at least one of the rotor units is adjusted relative to another of the rotor units. The adjustment causes a spread in the tonal noises generated by the rotor units.
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公开(公告)号:EP4270376A1
公开(公告)日:2023-11-01
申请号:EP22275055.6
申请日:2022-04-27
申请人: BAE SYSTEMS plc
IPC分类号: G10K11/16 , F01D25/04 , F02C7/045 , F02K1/82 , F02K9/97 , F42D5/05 , F42D5/055 , G10K11/178 , B64C11/00 , B64C23/00 , B64C27/00
摘要: There is provided an acoustic black hole comprising: in a first axis, a variation from a first characteristic to a second characteristic, along a line; in a second axis different to the first axis, a variation from a first characteristic to a second characteristic, along the second axis.
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公开(公告)号:EP3766779B1
公开(公告)日:2023-11-01
申请号:EP19187420.5
申请日:2019-07-19
发明人: BOTTASSO, Luigi , FOSCO, Ermanno , PISANI, Paolo , VINCENZO, Francesco , ROSA, Francesco , BRAGHIN, Francesco , CAZZULANI, Gabriele , CINQUEMANI, Simone
IPC分类号: B64C27/00
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