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公开(公告)号：US20180362152A1
公开(公告)日：2018-12-20
申请号：US16103083
申请日：2018-08-14
Applicant: Bell Helicopter Textron Inc.
Inventor： Dudley E. Smith , Cory M. Hitte , Bryan Marshall , Carlos Alexander Fenny
Abstract: Embodiments refer generally to systems and methods for providing autorotative enhancement for helicopters using an autorotative assist unit coupled to the transmission of the helicopter. Methods of utilizing an autorotative assist unit as well as retrofitting an autorotative assist unit to an existing helicopter are also disclosed. By employing an autorotative assist unit, improved autorotation can be achieved without the need to increase the weight of the rotor.
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22.发明申请公开(公告)号：US20180244364A1
公开(公告)日：2018-08-30
申请号：US15593607
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Carlos Alexander Fenny , Rohn Lee Olson , Andrew James Zahasky
Abstract: An aircraft capable of vertical takeoff and landing and stationary flight includes a distributed airframe coupled to a modular fuselage. The modular fuselage has a longitudinal axis substantially parallel to a rotational axis of three or more propellers. The modular fuselage includes a rear module substantially disposed within a perimeter of the distributed airframe, a front module removably connected to the rear module and substantially aligned with the longitudinal axis. One or more engines or motors are disposed within or attached to the distributed airframe or fuselage. The three or more propellers are proximate to a leading edge of the distributed airframe, distributed along the distributed airframe, and operably connected to the one or more engines or motors to provide lift whenever the aircraft is in vertical takeoff and landing and stationary flight.
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公开(公告)号：US20170144746A1
公开(公告)日：2017-05-25
申请号：US15428687
申请日：2017-02-09
Applicant: Bell Helicopter Textron Inc.
Inventor： Troy Cyril Schank , Carlos Alexander Fenny , Andrew Maresh , Chyau-Song Tzeng
CPC classification number: B64C11/28 , B64C27/30 , B64C29/0033 , B64D27/20
Abstract: A mechanism for transitioning a tiltrotor aircraft between rotary and non rotary flight modes. The mechanism includes a gimbal lock positioned about a mast that is operable to selectively enable and disable a gimballing degree of freedom of a rotor assembly relative to the mast. A blade stop assembly, positioned about the mast, includes a plurality of arms having a radially contracted orientation and a radially extended orientation. A blade lock assembly is operably associated with each rotor blade assembly. Each blade lock assembly is operable to selectively enable and disable a folding degree of freedom and a pitching degree of freedom of the respective rotor blade assembly. A swash plate is operable to change the pitch of the rotor blade assemblies in the rotary flight mode and fold the rotor blade assemblies in the non rotary flight mode.
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公开(公告)号：US10960978B2
公开(公告)日：2021-03-30
申请号：US15593554
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Carlos Alexander Fenny , Rohn Lee Olson , Andrew James Zahasky
IPC: B64C39/06 , B64C29/00 , B64C11/28 , B64C27/50 , B64C3/16 , B64C3/10 , B64C27/08 , B64C27/12 , B64D27/24 , B64D31/00 , B64C29/02 , B64C1/06 , B64C39/02 , B64C39/00 , B64C1/00 , B64D27/02
Abstract: An aircraft capable of vertical takeoff and landing, stationary flight and forward flight includes a closed wing that provides lift whenever the aircraft is in forward flight, a fuselage at least partially disposed within a perimeter of the closed wing, and one or more spokes coupling the closed wing to the fuselage. One or more engines or motors are disposed within or attached to the closed wing, fuselage or spokes. Three or more propellers are proximate to a leading edge of the closed wing or the one or more spokes, distributed along the closed wing or the one or more spokes, and operably connected to the one or more engines or motors. The propellers provide lift whenever the aircraft is in vertical takeoff and landing and stationary flight, and provide thrust whenever the aircraft is in forward flight.
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公开(公告)号：US10787253B2
公开(公告)日：2020-09-29
申请号：US16183035
申请日：2018-11-07
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons , Carlos Alexander Fenny , Erik John Oltheten
IPC: B64C27/82
Abstract: The present invention includes an anti-torque assembly for a helicopter comprising a plurality of fixed blade pitch motors mounted on one or more pivots on the tail boom of the helicopter, wherein the plurality of fixed blade pitch motors on the one or more pivots are adapted to be oriented substantially in-plane with a tail boom of a helicopter during a first mode of operation that comprises a hover mode and wherein the fixed blade pitch motors are adapted to be oriented substantially off-plane from the tail boom of the helicopter during a second mode of helicopter operation that is different from the first mode.
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Patent Agency Ranking
公开(公告)号：US10737786B2
公开(公告)日：2020-08-11
申请号：US15593575
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Carlos Alexander Fenny , Rohn Lee Olson , Andrew James Zahasky
IPC: B64C39/06 , B64C29/02 , B64D27/02 , B64C11/28 , B64C27/50 , B64C29/00 , B64C3/10 , B64C27/08 , B64C27/12 , B64D27/24 , B64D31/00 , B64C1/06 , B64C39/02 , B64C1/00
Abstract: An aircraft includes a closed wing, a fuselage at least partially disposed within a perimeter of the closed wing, and one or more spokes coupling the closed wing to the fuselage. A plurality of hydraulic or electric motors are disposed within or attached to the closed wing, fuselage or spokes in a distributed configuration. A propeller is proximate to a leading edge of the closed wing or spokes and operably connected to each hydraulic or electric motor. A source of hydraulic or electric power is disposed within or attached to the closed wing, fuselage or spokes and coupled to each hydraulic or electric motor disposed within or attached to the closed wing, fuselage or spokes. A controller is coupled to each hydraulic or electric motor, and one or more processors communicably coupled to each controller that control an operation and speed of the plurality of hydraulic or electric motors.
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公开(公告)号：US10676183B2
公开(公告)日：2020-06-09
申请号：US15593521
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Carlos Alexander Fenny , Rohn Lee Olson , Andrew James Zahasky
IPC: B64C27/50 , B64C11/28 , B64C39/06 , B64C29/00 , B64C3/10 , B64C27/08 , B64C27/12 , B64D27/24 , B64D31/00 , B64C29/02 , B64C1/06 , B64C39/02 , B64C1/00 , B64D27/02
Abstract: A rotor blade rotation system includes two or more rotor blades, each rotor blade in mechanical communication with a hub and pivotable about an axis of rotation, a bearing plate comprising a rotating portion and a non-rotating portion, a fold linkage coupled to the rotating portion of the bearing plate and in mechanical communication with the rotor blade, and an actuator coupled to the non-rotating portion of the bearing plate and operable to reposition the bearing plate from a first position to a second position such that the folding links pivot the rotor blades from a deployed position to a forward folded position.
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公开(公告)号：US10077105B2
公开(公告)日：2018-09-18
申请号：US15383458
申请日：2016-12-19
Applicant: Bell Helicopter Textron Inc.
Inventor： Dudley E. Smith , Cory M. Hitte , Bryan Marshall , Carlos Alexander Fenny
CPC classification number: B64C27/006 , B64C27/12 , B64D27/24 , B64D2027/026 , Y02T50/62 , Y10T29/49117
Abstract: Embodiments refer generally to systems and methods for providing autorotative enhancement for helicopters using an autorotative assist unit coupled to the transmission of the helicopter. Methods of utilizing an autorotative assist unit as well as retrofitting an autorotative assist unit to an existing helicopter are also disclosed. By employing an autorotative assist unit, improved autorotation can be achieved without the need to increase the weight of the rotor.
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公开(公告)号：US20180244376A1
公开(公告)日：2018-08-30
申请号：US15593575
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Carlos Alexander Fenny , Rohn Lee Olson , Andrew James Zahasky
Abstract: An aircraft includes a closed wing, a fuselage at least partially disposed within a perimeter of the closed wing, and one or more spokes coupling the closed wing to the fuselage. A plurality of hydraulic or electric motors are disposed within or attached to the closed wing, fuselage or spokes in a distributed configuration. A propeller is proximate to a leading edge of the closed wing or spokes and operably connected to each hydraulic or electric motor. A source of hydraulic or electric power is disposed within or attached to the closed wing, fuselage or spokes and coupled to each hydraulic or electric motor disposed within or attached to the closed wing, fuselage or spokes. A controller is coupled to each hydraulic or electric motor, and one or more processors communicably coupled to each controller that control an operation and speed of the plurality of hydraulic or electric motors.
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公开(公告)号：US20180215462A1
公开(公告)日：2018-08-02
申请号：US15593458
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Carlos Alexander Fenny , Rohn Lee Olson
Abstract: The present invention includes a distributed propulsion system for a craft that comprises a frame, a plurality of hydraulic or electric motors disposed within or attached to the frame in a distributed configuration; a propeller operably connected to each of the hydraulic or electric motors, a source of hydraulic or electric power disposed within or attached to the frame and coupled to each of the disposed within or attached to the frame, wherein the source of hydraulic or electric power provides sufficient energy density for the craft to attain and maintain operations of the craft, a controller coupled to each of the hydraulic or electric motors, and one or more processors communicably coupled to each controller that control an operation and speed of the plurality of hydraulic or electric motors.
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