PROPELLER BLADE INDENTATIONS FOR IMPROVED AERODYNAMIC PERFORMANCE AND SOUND CONTROL

    公开(公告)号:US20170174318A1

    公开(公告)日:2017-06-22

    申请号:US14975249

    申请日:2015-12-18

    Abstract: 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.

    UNMANNED AERIAL VEHICLE PROTECTIVE FRAME CONFIGURATION
    148.
    发明申请
    UNMANNED AERIAL VEHICLE PROTECTIVE FRAME CONFIGURATION 有权
    无人机动车保护框架配置

    公开(公告)号:US20160229530A1

    公开(公告)日:2016-08-11

    申请号:US14557403

    申请日:2014-12-01

    Abstract: This disclosure describes a configuration of an unmanned aerial vehicle (UAV) that includes a frame that provides both structural support for the UAV and protection for foreign objects that may come into contact with the UAV. The UAV may have any number of lifting motors. For example, the UAV may include four lifting motors (also known as a quad-copter), eight lifting motors (octo-copter), etc. Likewise, to improve the efficiency of horizontal flight, the UAV may also include one or more pushing motor and propeller assemblies that are oriented at approximately ninety degrees to one or more of the lifting motors. When the UAV is moving horizontally, the pushing motor(s) may be engaged and the pushing propeller(s) will aid in the horizontal propulsion of the UAV.

    Abstract translation: 本公开描述了一种无人飞行器(UAV)的配置,其包括提供对UAV的结构支撑和保护可能与UAV接触的异物的框架。 无人机可能有任何数量的起重马达。 例如,无人机可以包括四个提升马达(也称为四通机),八个提升马达(八重直升机)等。同样,为了提高横向飞行的效率,UAV还可以包括一个或多个推动 电动机和螺旋桨组件,其定向在一个或多个起重电动机上大约九十度。 当UAV水平移动时,推动马达可以接合,并且推进螺旋桨将有助于UAV的水平推进。

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