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公开(公告)号:US11780580B2
公开(公告)日:2023-10-10
申请号:US17067397
申请日:2020-10-09
Applicant: California Institute of Technology
Inventor: Jacob S. Izraelevitz , Brett A. Kennedy , Amanda R. Bouman , Daniel Pastor Moreno , Matthew James Lindsay Anderson , Paul M. Nadan , Joel W. Burdick
CPC classification number: B64C39/024 , B64C1/30 , B64U10/13 , B64U30/12 , B64U30/20 , B64U50/19 , B64U70/00
Abstract: A ballistically launched foldable multirotor vehicle has a central body frame. A battery is located in an upper vertical location of the vehicle and positions a center of mass of the vehicle to provide aerodynamic stability during a launch. Fins are attached to the central body frame such that aerodynamic forces on the fins shift an aerodynamic center (AC) of the vehicle downward below the center of mass of the vehicle. Three or more foldable arms are attached to the central body frame via a hinge and exist in two states—a closed state where the foldable arms are parallel to a central body axis, and an open state (after launch) where the foldable arms extend radially outward perpendicular to the central body axis. Rotors mounted to each foldable arm are controlled by a motor to enable flight.
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公开(公告)号:US20210107645A1
公开(公告)日:2021-04-15
申请号:US17067397
申请日:2020-10-09
Applicant: California Institute of Technology
Inventor: Jacob S. Izraelevitz , Brett A. Kennedy , Amanda R. Bouman , Daniel Pastor Moreno , Matthew James Lindsay Anderson , Paul M. Nadan , Joel W. Burdick
IPC: B64C39/02 , B64D27/24 , B64C5/06 , B64C1/30 , B64C27/32 , B64C1/06 , B64C25/32 , B64F1/04 , B64D47/08
Abstract: A ballistically launched foldable multirotor vehicle has a central body frame. A battery is located in an upper vertical location of the vehicle and positions a center of mass of the vehicle to provide aerodynamic stability during a launch. Fins are attached to the central body frame such that aerodynamic forces on the fins shift an aerodynamic center (AC) of the vehicle downward below the center of mass of the vehicle. Three or more foldable arms are attached to the central body frame via a hinge and exist in two states—a closed state where the foldable arms are parallel to a central body axis, and an open state (after launch) where the foldable arms extend radially outward perpendicular to the central body axis. Rotors mounted to each foldable arm are controlled by a motor to enable flight.
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