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11.
公开(公告)号:US20220009379A1
公开(公告)日:2022-01-13
申请号:US17348193
申请日:2021-06-15
Applicant: Joby Aero, Inc.
Inventor: Gregor Veble Mikic , JoeBen Bevirt , Robert Gulliver Lynn , Alex Stoll
IPC: B60L58/33 , B64D27/24 , B64C29/00 , H01M8/04701 , H01M8/04029 , H01M8/04014 , H01M8/04119
Abstract: A high efficiency hydrogen fuel system for an aircraft at high altitude which utilizes compressors to compress air to a sufficiently high pressure for the fuel cell. Liquid hydrogen is compressed and then utilized in heat exchangers to cool the compressed air, maintaining the air at a temperature low enough for the fuel cell. The hydrogen is also used to cool the fuel cell as it is also depressurized prior to its entry in the fuel cell cycle. A water condensation system allows for water removal from the airstream to reduce impacts to the atmosphere. The hydrogen fuel system may be used with VTOL aircraft, which may allow them to fly at higher elevations. The hydrogen fuel system may be used with other subsonic and supersonic aircraft, such as with asymmetric wing aircraft.
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公开(公告)号:US20210253236A1
公开(公告)日:2021-08-19
申请号:US17083069
申请日:2020-10-28
Applicant: Joby Aero, Inc.
Inventor: Gregor Veble Mikic , JoeBen Bevirt , Jeremy Bain , Alex Stoll
Abstract: The rotary airfoil 100 defines a cross section and a span, wherein the cross section is a function of the point along the span (e.g., spanwise point) and defines an upper surface and a lower surface at each spanwise point. The rotary airfoil 100 also defines, at a cross section, a lift coefficient (CL) that is a function of the angle of attack at which the airfoil is rotated through the air. The system can optionally include: a rotor hub to mount the rotary airfoil, a tilt mechanism to pivot the rotary airfoil between a forward configuration and a hover configuration, and a pitching mechanism to change the angle of attack of the rotary airfoil 100.
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公开(公告)号:US10994851B2
公开(公告)日:2021-05-04
申请号:US16596497
申请日:2019-10-08
Applicant: Joby Aero, Inc.
Inventor: JoeBen Bevirt , Alex Stoll
Abstract: An aerial vehicle adapted for vertical takeoff and landing using a set of wing mounted thrust producing elements and a set of tail mounted rotors for takeoff and landing. An aerial vehicle which is adapted to vertical takeoff with the rotors in a rotated, take-off attitude then transitions to a horizontal flight path, with the rotors rotated to a typical horizontal configuration. The aerial vehicle uses different configurations of its wing mounted rotors and propellers to reduce drag in all flight modes.
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公开(公告)号:US20210001979A1
公开(公告)日:2021-01-07
申请号:US16880635
申请日:2020-05-21
Applicant: Joby Aero, Inc.
Inventor: Gregor Veble Mikic , JoeBen Bevirt , Alex Stoll
Abstract: A vertical take-off and landing aircraft which uses fixed rotors for both VTOL and forward flight operations. The rotors form a synthetic wing and are positioned to achieve a high span efficiency. The rotors are positioned to even out the lift across the span of the synthetic wing. The synthetic wing may also have narrow front and rear airfoils which may provide structural support as well as providing lift during forward flight, or may have a single center wing. The wing rotors are tilted forward and provide some forward propulsion during horizontal flight.
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公开(公告)号:US20200331602A1
公开(公告)日:2020-10-22
申请号:US16708280
申请日:2019-12-09
Applicant: Joby Aero, Inc.
Inventor: Gregor Veble Mikic , JoeBen Bevirt , Jeremy Bain , Alex Stoll
Abstract: The rotary airfoil 100 defines a cross section and a span, wherein the cross section is a function of the point along the span (e.g., spanwise point) and defines an upper surface and a lower surface at each spanwise point. The rotary airfoil 100 also defines, at a cross section, a lift coefficient (CL) that is a function of the angle of attack at which the airfoil is rotated through the air. The system can optionally include: a rotor hub to mount the rotary airfoil, a tilt mechanism to pivot the rotary airfoil between a forward configuration and a hover configuration, and a pitching mechanism to change the angle of attack of the rotary airfoil 100.
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16.
公开(公告)号:US20200317353A1
公开(公告)日:2020-10-08
申请号:US16815006
申请日:2020-03-11
Applicant: Joby Aero, Inc.
Inventor: JoeBen Bevirt , Alex Stoll
Abstract: An aerial vehicle adapted for vertical takeoff and landing using a set of wing mounted thrust producing elements and a set of tail mounted rotors for takeoff and landing. An aerial vehicle which is adapted to vertical takeoff with the rotors in a rotated, take-off attitude then transitions to a horizontal flight path, with the rotors rotated to a typical horizontal configuration. The aerial vehicle uses different configurations of its wing mounted rotors and propellers to reduce drag in all flight modes.
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公开(公告)号:US20200269990A1
公开(公告)日:2020-08-27
申请号:US16430163
申请日:2019-06-03
Applicant: Joby Aero, Inc.
Inventor: JoeBen Bevirt , Gregor Veble Miki , Jason Ryan , Alex Stoll , Rob Thodal , Jeremy Bain
Abstract: A system and method for reducing a psychoacoustic penalty of acoustic noise emitted by an aircraft, including a plurality of propulsion assemblies coupled to the aircraft, wherein each of the plurality of propulsion assemblies includes a motor, and a plurality of blades defined by a propeller, wherein the plurality of blades can define an asymmetric blade spacing; a control subsystem coupled to the aircraft and communicatively coupled to the motor of each of the plurality of propulsion assemblies, wherein the control subsystem is operable to rotate each of the plurality of propulsion assemblies at a different frequency to modulate the acoustic power distribution of the emitted acoustic signature.
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公开(公告)号:US20250131850A1
公开(公告)日:2025-04-24
申请号:US19002678
申请日:2024-12-26
Applicant: Joby Aero, Inc.
Inventor: Gregor Veble Mikic , JoeBen Bevirt , Alex Stoll , Jeremy Bain
Abstract: A method and system for modeling aerodynamic interactions in complex eVTOL configurations for realtime flight simulations and hardware testing which includes decomposing the aircraft into aerodynamic subcomponents, wherein the interactions between these components are handled by flow simulations of the surrounding fluid, which may be Euler flow CFD simulations. A computer generated simulation can be used to analyze the fluid flow and pressures, the forces delivered by an aircraft into the fluid and the forces onto the aircraft from the fluid, to determine the position and attitude of the aircraft, and other aspects. The system may be used as a flight simulator for pilot training in a realtime environment. The system may be used to support component testing using an interface to those components, such as flight electronics and actuators, to test the components in high fidelity simulations of actual flight demands on those components. The system may also be used to support design analysis in non-realtime to run numerous simulations on different designs and to provide comparative output.
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公开(公告)号:US20250033768A1
公开(公告)日:2025-01-30
申请号:US18674926
申请日:2024-05-27
Applicant: Joby Aero, Inc.
Inventor: JoeBen Bevirt , Edward Stilson , Alex Stoll , Gregor Veble Mikic
Abstract: An aircraft including an airframe and a plurality of propulsion assemblies coupled to the airframe, wherein each propulsion assembly includes an electric motor, a propeller coupled to the electric motor, and a tilt mechanism that connects the propulsion assembly to the airframe and transforms the propulsion assembly between a forward configuration and a hover configuration; wherein the plurality of propulsion assemblies is transformable between a forward arrangement and a hover arrangement, wherein each of the plurality of propulsion assemblies is in the forward configuration in the forward arrangement, wherein each of the plurality of propulsion assemblies is in the hover configuration in the hover arrangement, wherein the spacing between at least two of the propellers of the plurality of propulsion assemblies changes between the forward arrangement and the hover arrangement.
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公开(公告)号:US12202595B2
公开(公告)日:2025-01-21
申请号:US18525850
申请日:2023-12-01
Applicant: Joby Aero, Inc.
Inventor: Gregor Veble Mikic , JoeBen Bevirt , Alex Stoll
Abstract: A vertical take-off and landing aircraft and method which uses fixed rotors for both VTOL and forward flight operations. The rotors are positioned to achieve a high span efficiency. The rotors are positioned to even out the lift across the span of the wing. The wing may also have narrow front and rear airfoils which may provide structural support as well as providing lift during forward flight, or may have a single center wing. The wing rotors are tilted forward and provide some forward propulsion during horizontal flight.
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