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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：US12280885B2
公开(公告)日：2025-04-22
申请号：US17065172
申请日：2020-10-07
Applicant: Joby Aero, Inc.
Inventor： JoeBen Bevirt , Gregor Veble Mikic , 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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3.发明公开公开(公告)号：US20240171039A1
公开(公告)日：2024-05-23
申请号：US18424698
申请日：2024-01-26
Applicant: Joby Aero, Inc.
Inventor： Jordin Gischler , Baixi Pei , Rob Thodal , JoeBen Bevirt
CPC classification number: H02K7/116 , B64C27/52 , B64D27/24 , F16H49/001
Abstract: A compact harmonic drive system with a motor residing within the flexspline cup. The motor may reside further into the flexspline cup than the wave generator, and the air gap of the motor may be further out radially than the interior of the wave generator bearing. The motor may use an outrunner configuration with an outboard rotor made up of magnets, allowing for a large radial distance to the air gap and resulting in higher torque. The interior stator windings are thermally well coupled to the drive system structure. The harmonic drive may be coupled to a deployment system adapted to support moment loads perpendicular to the rotation axis such that those loads are not supported by the harmonic drive.
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4.发明授权公开(公告)号：US11912393B2
公开(公告)日：2024-02-27
申请号：US17586801
申请日：2022-01-28
Applicant: Joby Aero, Inc.
Inventor： JoeBen Bevirt , Gregor Veble Mikic , Joey Milia , Rob Thodal , Vishnu Vithala
CPC classification number: B64C1/38 , B64C23/005 , B64C21/08 , B64C27/32 , B64C2230/04
Abstract: An aircraft propulsion system with a drag reduction portion adapted to reduce skin friction on at least a portion of the external surface of an aircraft. The drag reduction portion may include an inlet to ingest airflow. The aircraft may also have an internally cooled electric motor adapted for use in an aerial vehicle. The motor may have its stator towards the center and have an external rotor. The rotor structure may be air cooled and may be a complex structure with an internal lattice adapted for airflow. The stator structure may be liquid cooled and may be a complex structure with an internal lattice adapted for liquid to flow through. A fluid pump may pump a liquid coolant through non-rotating portions of the motor stator and then through heat exchangers cooled in part by air which has flowed through the rotating portions of the motor rotor. The drag reduction portion and the cooled electric motor portion may share the same inlet.
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公开(公告)号：US20240418093A1
公开(公告)日：2024-12-19
申请号：US18731044
申请日：2024-05-31
Applicant: Joby Aero, Inc.
Inventor： Rob Thodal , Baixi Pei , Joachim L. Grenestedt , Mallory Snowden
Abstract: A propeller blade pitch control mechanism configured to adjust and control the blade pitch of the blades of a multi-blade propeller simultaneously. The pitch control mechanism may have a pitch plate which is raised or lowered along a liner path along an axial direction using a linear drive, which may be a power screw. The pitch plate is coupled to the blade roots with kinematic links which transfer the linear axial motion of the pitch plate along the propeller spin axis into rotary motion of the propeller blade roots, thereby controlling the pitch of the propeller blades. The propeller pitch control mechanism may include springs or gas springs adapted to place the propeller blades in a low drag position in the event of failure of the blade pitch control mechanism.
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Patent Agency Ranking
公开(公告)号：US11942855B2
公开(公告)日：2024-03-26
申请号：US17400605
申请日：2021-08-12
Applicant: Joby Aero, Inc.
Inventor： Jordin Gischler , Baixi Pei , Rob Thodal , JoeBen Bevirt
CPC classification number: H02K7/116 , B64C27/52 , B64D27/24 , F16H49/001
Abstract: A compact harmonic drive system with a motor residing within the flexspline cup. The motor may reside further into the flexspline cup than the wave generator, and the air gap of the motor may be further out radially than the interior of the wave generator bearing. The motor may use an outrunner configuration with an outboard rotor made up of magnets, allowing for a large radial distance to the air gap and resulting in higher torque. The interior stator windings are thermally well coupled to the drive system structure. The harmonic drive may be coupled to a deployment system adapted to support moment loads perpendicular to the rotation axis such that those loads are not supported by the harmonic drive.
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公开(公告)号：US20220173634A1
公开(公告)日：2022-06-02
申请号：US17400605
申请日：2021-08-12
Applicant: Joby Aero, Inc.
Inventor： Jordin Gischler , Baixi Pei , Rob Thodal , JoeBen Bevirt
Abstract: A compact harmonic drive system with a motor residing within the flexspline cup. The motor may reside further into the flexspline cup than the wave generator, and the air gap of the motor may be further out radially than the interior of the wave generator bearing. The motor may use an outrunner configuration with an outboard rotor made up of magnets, allowing for a large radial distance to the air gap and resulting in higher torque. The interior stator windings are thermally well coupled to the drive system structure. The harmonic drive may be coupled to a deployment system adapted to support moment loads perpendicular to the rotation axis such that those loads are not supported by the harmonic drive.
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公开(公告)号：US20220169362A1
公开(公告)日：2022-06-02
申请号：US17586801
申请日：2022-01-28
Applicant: Joby Aero, Inc.
Inventor： JoeBen Bevirt , Gregor Veble Mikic , Joey Milia , Rob Thodal , Vishnu Vithula
Abstract: An aircraft propulsion system with a drag reduction portion adapted to reduce skin friction on at least a portion of the external surface of an aircraft. The drag reduction portion may include an inlet to ingest airflow. The aircraft may also have an internally cooled electric motor adapted for use in an aerial vehicle. The motor may have its stator towards the center and have an external rotor. The rotor structure may be air cooled and may be a complex structure with an internal lattice adapted for airflow. The stator structure may be liquid cooled and may be a complex structure with an internal lattice adapted for liquid to flow through. A fluid pump may pump a liquid coolant through non-rotating portions of the motor stator and then through heat exchangers cooled in part by air which has flowed through the rotating portions of the motor rotor. The drag reduction portion and the cooled electric motor portion may share the same inlet.
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9.发明授权公开(公告)号：US11161589B2
公开(公告)日：2021-11-02
申请号：US16355742
申请日：2019-03-16
Applicant: Joby Aero, Inc.
Inventor： JoeBen Bevirt , Gregor Veble Mikic , Joey Milia , Rob Thodal , Vishnu Vithala
Abstract: An aircraft propulsion system with a drag reduction portion adapted to reduce skin friction on at least a portion of the external surface of an aircraft. The drag reduction portion may include an inlet to ingest airflow. The aircraft may also have an internally cooled electric motor adapted for use in an aerial vehicle. The motor may have its stator towards the center and have an external rotor. The rotor structure may be air cooled and may be a complex structure with an internal lattice adapted for airflow. The stator structure may be liquid cooled and may be a complex structure with an internal lattice adapted for liquid to flow through. A fluid pump may pump a liquid coolant through non-rotating portions of the motor stator and then through heat exchangers cooled in part by air which has flowed through the rotating portions of the motor rotor. The drag reduction portion and the cooled electric motor portion may share the same inlet.
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公开(公告)号：US20240262517A1
公开(公告)日：2024-08-08
申请号：US18586428
申请日：2024-02-24
Applicant: Joby Aero, Inc.
Inventor： JoeBen Bevirt , Gregor Veble Mikic , Joey Milia , Rob Thodal , Vishnu Vithala
CPC classification number: B64D27/24 , B64C1/38 , B64C23/005 , B64C21/08 , B64C27/32 , B64C2230/04
Abstract: An aircraft propulsion system with an internally cooled electric motor adapted for use in an aerial vehicle. The motor may have its stator towards the center and have an external rotor. The rotor structure may be air cooled and may be a complex structure with an internal lattice adapted for airflow. The stator structure may be liquid cooled and may be a complex structure with an internal lattice adapted for liquid to flow through. A fluid pump may pump a liquid coolant through non-rotating portions of the motor stator and then through heat exchangers cooled in part by air which has flowed through the rotating portions of the motor rotor. The drag reduction portion and the cooled electric motor portion may share the same inlet.
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