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公开(公告)号：US10960974B2
公开(公告)日：2021-03-30
申请号：US16041512
申请日：2018-07-20
发明人： Petter Muren , Trygve Frederik Marton , Ivar Johnsrud , Pal Hagh Sandberg , Christian Moengen , Jo Eyvin Bjaarstad
IPC分类号： B64C27/00 , B64C27/625 , B64C27/54 , B64C27/48 , A63H27/00 , G05D1/08 , B64C27/635 , B64C39/02
摘要： The present embodiments disclose a torque dependent and resonant operating thrust-generating rotor assembly including a cyclic pitch control system for controlling tilting moments about a longitudinal rotor blade axis of one or more rotor blades, in order to control the pitch angle of the rotor blades and thereby also the horizontal movements of a helicopter vehicle or a rotary wing aircraft. A rotor torque assembly of the rotor assembly is further configured to operate in resonance, thereby providing a resonant gain effecting a rotational offset in relation to changes in torque generated by the motor.
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公开(公告)号：US20190047688A1
公开(公告)日：2019-02-14
申请号：US16041512
申请日：2018-07-20
发明人： Petter Muren , Trygve Frederik Marton , Ivar Johnsrud , Pal Hagh Sandberg , Christian Moengen , Jo Eyvin Bjaarstad
IPC分类号： B64C27/00 , B64C27/625
摘要： The present embodiments disclose a torque dependent and resonant operating thrust-generating rotor assembly including a cyclic pitch control system for controlling tilting moments about a longitudinal rotor blade axis of one or more rotor blades, in order to control the pitch angle of the rotor blades and thereby also the horizontal movements of a helicopter vehicle or a rotary wing aircraft. A rotor torque assembly of the rotor assembly is further configured to operate in resonance, thereby providing a resonant gain effecting a rotational offset in relation to changes in torque generated by the motor.
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公开(公告)号：US11161596B2
公开(公告)日：2021-11-02
申请号：US16286219
申请日：2019-02-26
发明人： Pal H. Sandberg , Petter Muren , Trygve F. Marton , Ivar Johnsrud
摘要： The present invention relates to a rotor assembly where associated electric motors are configured to rotate the rotor, control the collective pitch of the rotor/assembly, and/or control the cyclic pitch of the rotor/assembly, by varying the relative rotational angle between two or more of the associated electric motors.
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公开(公告)号：US10377478B2
公开(公告)日：2019-08-13
申请号：US15545308
申请日：2016-01-20
摘要： The present invention discloses a rotor control system where rapid changes in rotor torque are transferred into moment forces acting about the blade pitch axis of a rotor blade in a thrust-generating rotor, to ultimately control the movements of a rotary wing aircraft. The moment forces acting on the rotor blade are transferred through a carefully adjusted damping member in order to allow rapid changes in rotor torque to create cyclic changes in blade pitch angle, while slow or permanent changes are cancelled out and affects the rotational speed and the thrust generated by the rotor, without permanently affecting the blade pitch angle of individual rotor blades.
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公开(公告)号：US20190193835A1
公开(公告)日：2019-06-27
申请号：US16286219
申请日：2019-02-26
发明人： Pal H. Sandberg , Petter Muren , Trygve F. Marton , Ivar Johnsrud
CPC分类号： B64C11/34 , B63H3/06 , B64C11/32 , B64C11/44 , B64C27/14 , B64C27/68 , B64C2201/024 , B64C2201/042 , B64C2201/165 , H02P5/753
摘要： The present invention relates to a rotor assembly where associated electric motors are configured to rotate the rotor, control the collective pitch of the rotor/assembly, and/or control the cyclic pitch of the rotor/assembly, by varying the relative rotational angle between two or more of the associated electric motors.
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公开(公告)号：US11267569B2
公开(公告)日：2022-03-08
申请号：US16041656
申请日：2018-07-20
发明人： Petter Muren , Trygve Frederik Marton , Ivar Johnsrud , Pal Hagh Sandberg , Christian Moengen , Jo Eyvin Bjaarstad
IPC分类号： B64C27/54 , B64C27/48 , A63H27/00 , G05D1/08 , B64C27/635 , B64C27/00 , B64C27/625 , B64C39/02
摘要： Embodiments disclosed herein present a spring system for use in a torque dependent rotor assembly designed to operate in resonance, where changes in applied torque controls the blade pitch angle and ultimately the movements of a rotary wing aircraft. More specifically, the present invention relates to a spring system used in such a rotor assembly where the stiffness of an associated spring member is allowed to vary in response to the torque applied from a motor to the assembly.
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7.发明申请公开(公告)号：US20190047689A1
公开(公告)日：2019-02-14
申请号：US16041656
申请日：2018-07-20
发明人： Petter Muren , Trygve Frederik Marton , Ivar Johnsrud , Pal Hagh Sandberg , Christian Moengen , Jo Eyvin Bjaarstad
IPC分类号： B64C27/00 , B64C27/625
摘要： Embodiments disclosed herein present a spring system for use in a torque dependent rotor assembly designed to operate in resonance, where changes in applied torque controls the blade pitch angle and ultimately the movements of a rotary wing aircraft. More specifically, the present invention relates to a spring system used in such a rotor assembly where the stiffness of an associated spring member is allowed to vary in response to the torque applied from a motor to the assembly.
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