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    SYSTEMS AND METHODS FOR IMPROVED PROPELLER DESIGN
    6.
    发明公开
    SYSTEMS AND METHODS FOR IMPROVED PROPELLER DESIGN 审中-公开

    公开(公告)号：EP3800118A1

    公开(公告)日：2021-04-07

    申请号：EP20207714.5

    申请日：2018-11-26

    申请人： General Electric Company

    发明人： WOOD, Trevor Howard ,  RAMAKRISHNAN, Kishore ,  KNEPPER, Angela Marie ,  GIACCHÉ, Davide ,  BOWN, Nicholas William ,  BHASKARAN, Rathakrishnan

    IPC分类号： B64C11/18

    摘要： An aircraft assembly 100 includes an engine 110, and intake 120, and a propeller assembly 130. The engine 110 is mounted to at least one of a wing 112 or fuselage of an aircraft 102. The intake 120 is configured to provide air to the engine 110. The intake 120 includes a body 122 having an engine inlet 124 through which air enters the intake 120. The propeller assembly 130 includes propeller blades 140 coupled to and driven by the engine 110. The propeller assembly 130 is spaced an axial distance from the inlet opening 124 of the intake 120 wherein air passing by the propeller blades 140 enters the intake 120. The propeller assembly 130 has a propeller configuration that is at least one of sized or shaped to optimize performance of the propeller assembly 130 based on an interaction between the propeller assembly 130 and the intake 120.

    PROPELLER BLADE TREATMENTS FOR SOUND CONTROL
    8.
    发明公开
    PROPELLER BLADE TREATMENTS FOR SOUND CONTROL 审中-公开

    公开(公告)号：EP3736208A1

    公开(公告)日：2020-11-11

    申请号：EP20161936.8

    申请日：2016-12-14

    申请人： Amazon Technologies, Inc.

    发明人： BECKMAN, Brian C. ,  KIMCHI, Gur ,  KO, Allan ,  CORALIC, Vedran ,  BUNECI, Emilia Sorana

    IPC分类号： B64C11/16 ,  B64C11/18 ,  B64C11/20 ,  B64C11/22 ,  B64C11/24 ,  B64C11/26 ,  B64C27/467 ,  B64C27/473 ,  B64C39/02 ,  F03D1/06 ,  B64C27/46

    摘要： Sounds are generated by an aerial vehicle during operation. For example, the motors and propellers of an aerial vehicle generate sounds during operation. Disclosed are systems, methods, and apparatus for actively adjusting the position of one or more propeller blade treatments of a propeller blade of an aerial vehicle during operation of the aerial vehicle. For example, the propeller blade may have one or more propeller blade treatments that may be adjusted between two or more positions. Based on the position of the propeller blade treatments, the airflow over the propeller is altered, thereby altering the sound generated by the propeller when rotating. By altering the propeller blade treatments on multiple propeller blades of the aerial vehicle, the different sounds generated by the different propeller blades may effectively cancel, reduce, and/or otherwise alter the total sound generated by the aerial vehicle.

    PROPELLER BLADE TREATMENTS FOR SOUND CONTROL
    9.
    发明公开
    PROPELLER BLADE TREATMENTS FOR SOUND CONTROL 审中-公开

    公开(公告)号：EP3736207A1

    公开(公告)日：2020-11-11

    申请号：EP20161935.0

    申请日：2016-12-14

    申请人： Amazon Technologies, Inc.

    发明人： BECKMAN, Brian C. ,  KIMCHI, Gur ,  KO, Allan ,  CORALIC, Vedran ,  BUNECI, Emilia Sorana

    IPC分类号： B64C11/16 ,  B64C11/18 ,  B64C11/20 ,  B64C11/22 ,  B64C11/24 ,  B64C11/26 ,  B64C27/467 ,  B64C27/473 ,  B64C39/02 ,  F03D1/06 ,  B64C27/46

    摘要： Sounds are generated by an aerial vehicle during operation. For example, the motors and propellers of an aerial vehicle generate sounds during operation. Disclosed are systems, methods, and apparatus for actively adjusting the position of one or more propeller blade treatments of a propeller blade of an aerial vehicle during operation of the aerial vehicle. For example, the propeller blade may have one or more propeller blade treatments that may be adjusted between two or more positions. Based on the position of the propeller blade treatments, the airflow over the propeller is altered, thereby altering the sound generated by the propeller when rotating. By altering the propeller blade treatments on multiple propeller blades of the aerial vehicle, the different sounds generated by the different propeller blades may effectively cancel, reduce, and/or otherwise alter the total sound generated by the aerial vehicle.