-
公开(公告)号：US11104428B2
公开(公告)日：2021-08-31
申请号：US16147941
申请日：2018-10-01
IPC分类号： B64C27/00 , B64C39/02 , G10K11/178
摘要： An unmanned aerial vehicle capable of employing active noise cancelling without being influenced by wind from a rotor is provided. The unmanned aerial vehicle includes a processor and at least one speaker. The processor acquires operational information regarding each of at least one generator and generates an opposite phase signal having an opposite phase relative to a signal corresponding to the operational information. The at least one generator generates a force to fly the unmanned aerial vehicle. The operational information correlates with noise generated by each of the at least one generator. The at least one speaker outputs sound based on the opposite phase signal.
-
公开(公告)号：US11104427B2
公开(公告)日：2021-08-31
申请号：US16044532
申请日：2018-07-25
发明人： Kazunobu Konishi , Stephen John , Ko Mizuno , Takeo Kanamori
摘要： An unmanned air vehicle is provided. The unmanned air vehicle includes one or more generators, each of which generates a force that drives the unmanned air vehicle to fly and also generates an airflow. Each of one or more first microphones is located in an external region that is not included in any of one or more first airflow regions. Each of the one or more first airflow regions corresponds to the airflow generated by one of the one or more generators. Each of one or more second microphones is located in the external region between at least one of the one or more generators and the one or more first microphones. A processor performs processing on one or more first signals output from the one or more first microphones and one or more second signals output from the one or more second microphones.
-
公开(公告)号：US20210229794A1
公开(公告)日：2021-07-29
申请号：US17109355
申请日：2020-12-02
摘要： A vehicle with at least one emergency exit system, the at least one emergency exit system comprising a jettisonable component that is accommodated and locked in an associated frame structure of the vehicle in normal operation mode and releasable from the associated frame structure for being jettisoned from the vehicle in an emergency mode; and further comprising an emergency evacuation assistance device that is adapted to assist in an emergency evacuation of the vehicle via the associated frame structure in the emergency mode; wherein the emergency evacuation assistance device is attached to the jettisonable component such that the emergency evacuation assistance device is deployed by means of the jettisonable component when the jettisonable component is jettisoned from the vehicle in the emergency mode.
-
公开(公告)号：US11034438B2
公开(公告)日：2021-06-15
申请号：US16192901
申请日：2018-11-16
IPC分类号： B64C27/00 , B64C27/12 , B64C27/32 , G01M13/028 , G01M13/045
摘要： A sensor for monitoring rotors includes a rotating shaft coupled to a set of rotor blades and a non-rotating tube at least partially disposed within the rotating shaft and coupled to the rotating shaft. The non-rotating tube includes a first end and a second end, a sensor mount disposed within the non-rotating tube proximate to the second end of the non-rotating tube. One or more sensors are attached to the sensor mount, wherein the one or more sensors detect one or more parameters associated with the rotating shaft or the set of rotor blades.
-
公开(公告)号：US20210130006A1
公开(公告)日：2021-05-06
申请号：US17144317
申请日：2021-01-08
发明人： Wanqi Liu , Huai Huang , Changxing Zhou , Qiu Lan
摘要： Systems, apparatuses and methods for indicating a moveable device such as an unmanned aerial vehicle (UAV) are disclosed herein. The present technology provides an illumination system having a light source and an illuminating component. In a representative embodiment, the light source is carried by a UAV and positioned to emit a light ray in a first direction. The illuminating component is carried by a propeller of the UAV. The illuminating component can include a light entrance portion, a light transmission portion, and a light exit portion. The light entrance portion is positioned to receive the light ray from the light source, the light transmission portion is positioned to transmit the light ray to the light exit portion, and the light exit portion is positioned to direct the light ray in a second direction so as to form a visual indication corresponding to the UAV.
-
公开(公告)号：US20210123494A1
公开(公告)日：2021-04-29
申请号：US16713101
申请日：2019-12-13
申请人： MICROTECNICA S.r.l.
发明人： Giacomo MEZZINO , Dario MOLINELLI , Franco MAINO
摘要： There is provided a damper assembly for a helicopter rotor. The damper assembly comprises a piston movable along an axis, a piston shaft connected to and axially movable with the piston along the axis, and a bushing configured to surround the piston shaft and guide the piston shaft for movement along the axis. The bushing comprises a surface configured to oppose the piston shaft and guide the piston shaft for movement along the axis. The piston shaft comprises a surface configured to oppose the surface of the bushing. A clearance is provided between the surface of the piston shaft and the surface of the bushing so as to provide a passage for fluid to flow between the bushing and the piston shaft in use.
-
公开(公告)号：US20210122483A1
公开(公告)日：2021-04-29
申请号：US17024211
申请日：2020-09-17
申请人： MYBITCHBOOK, INC.
摘要： Methods and systems are configured to store user data and control access to the user data, wherein the data is stored remotely from the user (such as external to a user's computing device) and the user's data is maintained anonymously. Content is stored in association with a user identifier and access by third parties is controlled by linked third party identifiers.
-
公开(公告)号：US10988241B2
公开(公告)日：2021-04-27
申请号：US15957973
申请日：2018-04-20
申请人： SKYPERSONIC, LLC
摘要： A drone includes a surrounding cage which can be disassembled from a propeller-carrying internal base. In another aspect, a drone includes at least one fastening clip which attaches arcuate external ribs to a periphery of a central and internal frame, whereafter the fastening clip can be removed for disassembly of the ribs from the frame. Yet another aspect provides a flying drone employs a fastening clip including a snap fit and a generally U-shaped body. A further embodiment has a flying drone with at least one light externally mounted adjacent a periphery of a central propeller-carrying base, located between a pair of external ribs.
-
公开(公告)号：US20210094678A1
公开(公告)日：2021-04-01
申请号：US16584448
申请日：2019-09-26
申请人： Bell Textron Inc.
摘要： In an embodiment, a rotorcraft includes an airframe; a main rotor transmission; one or more brackets mounting the main rotor transmission to the airframe, longitudinal axes of the one or more brackets being substantially parallel with a longitudinal axis of the rotorcraft; and one or more restraints mounting the main rotor transmission to the airframe, the one or more restraints being mounted at an angle non-orthogonal to the longitudinal axis of the rotorcraft and a lateral axis of the rotorcraft.
-
公开(公告)号：US20210001976A1
公开(公告)日：2021-01-07
申请号：US17026394
申请日：2020-09-21
申请人： Bell Textron Inc.
摘要： A vibration control system for a rotor hub provides vibration attenuation in an aircraft by reducing the magnitude of rotor induced vibratory. The system can include a force generating device attached to a rotor hub which rotates along with the rotor at the rotational speed of the rotor. Vibratory shear force is generated by rotating unbalanced weights each about an axis non-concentric with the rotor hub axis at high speed to create large centrifugal forces. The rotational speed of the weights can be a multiple of the rotor rotational speed to create shear forces for canceling rotor induced vibrations. The amplitude of the generated shear force is controlled by indexing the positions of the unbalanced weights relative to each other, while the phase of the shear force is adjusted by equally phasing each weight relative to the rotor.
-
-
-
-
-
-
-
-
-
搜索结果
1942 条记录 (耗时 0.029 秒)
