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公开(公告)号：US12017761B2
公开(公告)日：2024-06-25
申请号：US16846371
申请日：2020-04-12
Applicant: Bell Textron Inc.
Inventor： George Matthew Thompson , Jonathan Andrew Knoll , Nicholas Carlson
CPC classification number: B64C27/33 , B64C27/48 , B64C11/06 , B64C27/10 , B64U10/13 , B64U30/20 , B64U50/14
Abstract: A rotor blade retention device for use in an aircraft having a plurality of blades includes an array of cavities, each cavity adapted to receive a portion of a tension-torsion strap therein. Each cavity is oriented such that, when the portion of the tension-torsion strap is received therein, a central plane of the tension-torsion strap is inclined relative to a blade plane of rotation defined by the plurality of blades. The retention device may have a body that defines an aperture adapted to receive a portion of a rotor mast of the aircraft, may comprise a rotor mast of the aircraft, or may comprise first and second plates that cooperate to form the array of cavities and that are adapted to receive a portion of the rotor mast of the aircraft.
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公开(公告)号：US11975826B2
公开(公告)日：2024-05-07
申请号：US17163785
申请日：2021-02-01
Applicant: Bell Textron Inc.
Inventor： Jonathan Andrew Knoll , George Matthew Thompson , Charles Hubert Speller , Grant Michael Beall
CPC classification number: B64C27/28 , B64C29/0033
Abstract: A rotor system for an aircraft includes an open rotor assembly comprising an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast, wherein the rotor assembly is tiltable relative to a wing of the aircraft between a first position corresponding to an airplane mode of the aircraft and a second position corresponding to a helicopter mode of the aircraft; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast. The drive system includes at least one electric motor for generating rotational energy to a motor shaft; and a gearbox connected to receive rotational energy from the at least one electric motor via the motor shaft and to provide rotational energy to the rotor mast via a rotor shaft, wherein the at least one electric motor is fixed relative to the wing of the aircraft.
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公开(公告)号：US11814163B2
公开(公告)日：2023-11-14
申请号：US17148307
申请日：2021-01-13
Applicant: Bell Textron Inc.
Inventor： Jonathan Andrew Knoll , George Matthew Thompson , Charles Hubert Speller , Grant Michael Beall
CPC classification number: B64C29/0033 , B64D27/24 , B64D29/02 , B64D35/02 , B64D35/04 , H02K7/108 , H02K7/116 , F16D41/00
Abstract: A rotor system for an aircraft includes an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast via a yoke, wherein the rotor assembly is tiltable between a first position corresponding to an airplane mode and a second position corresponding to a helicopter mode; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast, the drive system comprising at least one electric motor for providing rotational energy to a drive shaft and a gearbox connected to the drive shaft for receiving rotational energy from the at least one electric motor via the drive shaft and providing rotational energy to the rotor mast via a rotor shaft; wherein the drive system is rotatable relative to the wing about a tilt axis and the rotor shaft is coaxial with the drive shaft.
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公开(公告)号：US20220242557A1
公开(公告)日：2022-08-04
申请号：US17163785
申请日：2021-02-01
Applicant: Bell Textron Inc.
Inventor： Jonathan Andrew Knoll , George Matthew Thompson , Charles Hubert Speller , Grant Michael Beall
Abstract: A rotor system for an aircraft includes an open rotor assembly comprising an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast, wherein the rotor assembly is tiltable relative to a wing of the aircraft between a first position corresponding to an airplane mode of the aircraft and a second position corresponding to a helicopter mode of the aircraft; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast. The drive system includes at least one electric motor for generating rotational energy to a motor shaft; and a gearbox connected to receive rotational energy from the at least one electric motor via the motor shaft and to provide rotational energy to the rotor mast via a rotor shaft, wherein the at least one electric motor is fixed relative to the wing of the aircraft.
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公开(公告)号：US20220219817A1
公开(公告)日：2022-07-14
申请号：US17148307
申请日：2021-01-13
Applicant: Bell Textron Inc.
Inventor： Jonathan Andrew Knoll , George Matthew Thompson , Charles Hubert Speller , Grant Michael Beall
Abstract: A rotor system for an aircraft includes an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast via a yoke, wherein the rotor assembly is tiltable between a first position corresponding to an airplane mode and a second position corresponding to a helicopter mode; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast, the drive system comprising at least one electric motor for providing rotational energy to a drive shaft and a gearbox connected to the drive shaft for receiving rotational energy from the at least one electric motor via the drive shaft and providing rotational energy to the rotor mast via a rotor shaft; wherein the drive system is rotatable relative to the wing about a tilt axis and the rotor shaft is coaxial with the drive shaft.
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Patent Agency Ranking
公开(公告)号：US20220348309A1
公开(公告)日：2022-11-03
申请号：US17246705
申请日：2021-05-02
Applicant: Bell Textron Inc.
Inventor： George Matthew Thompson , Jonathan Andrew Knoll , Nicholas Ralph Carlson , Joseph Richard Carpenter, JR.
Abstract: A fitting for securing a rotor blade in pivotable engagement with a yoke that is coupled to a mast of an aircraft for rotation therewith about a mast axis has a body that extends from an inboard end to an outboard end. The body of the fitting has an opening that extends into the body from the outboard end and that is adapted to receive a root end of the blade. The body further has a first bearing race that is defined along an outer surface of the body and is located between the inboard and outboard ends. The body further has an array of apertures that is located between the inboard end and the first bearing race, each aperture adapted to receive a respective fastener for retaining the blade within the opening.
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公开(公告)号：US11772804B2
公开(公告)日：2023-10-03
申请号：US17148273
申请日：2021-01-13
Applicant: Bell Textron Inc.
Inventor： Jonathan Andrew Knoll , George Matthew Thompson , Charles Hubert Speller , Grant Michael Beall
CPC classification number: B64D27/24 , B64C29/0033 , B64D35/08
Abstract: A rotor system for an aircraft is described and includes an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast. The drive system includes at least one electric motor for providing rotational energy to a motor shaft; and a gearbox connected to the drive shaft for receiving rotational energy from the at least one electric motor via the motor shaft and providing rotational energy to the rotor mast via a rotor shaft.
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公开(公告)号：US11814153B2
公开(公告)日：2023-11-14
申请号：US17552052
申请日：2021-12-15
Applicant: Bell Textron Inc.
Inventor： Kyle Thomas Cravener , Andrew Maresh , Jonathan Andrew Knoll
CPC classification number: B64C11/28 , B64C11/04 , B64C27/28 , B64C29/0033
Abstract: A system for retaining a folded proprotor blade in flight. The system includes a mounting plate, a first arm coupled to the mounting plate at an acute angle relative to the mounting plate, and a first deformable pad affixed to the first arm and adapted to contact the folded proprotor blade.
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公开(公告)号：US20220219826A1
公开(公告)日：2022-07-14
申请号：US17148273
申请日：2021-01-13
Applicant: Bell Textron Inc.
Inventor： Jonathan Andrew Knoll , George Matthew Thompson , Charles Hubert Speller , Grant Michael Beall
Abstract: A rotor system for an aircraft is described and includes an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast. The drive system includes at least one electric motor for providing rotational energy to a motor shaft; and a gearbox connected to the drive shaft for receiving rotational energy from the at least one electric motor via the motor shaft and providing rotational energy to the rotor mast via a rotor shaft.
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公开(公告)号：US20210316849A1
公开(公告)日：2021-10-14
申请号：US16846371
申请日：2020-04-12
Applicant: Bell Textron Inc.
Inventor： George Matthew Thompson , Jonathan Andrew Knoll , Nicholas Carlson
Abstract: A rotor blade retention device for use in an aircraft having a plurality of blades includes an array of cavities, each cavity adapted to receive a portion of a tension-torsion strap therein. Each cavity is oriented such that, when the portion of the tension-torsion strap is received therein, a central plane of the tension-torsion strap is inclined relative to a blade plane of rotation defined by the plurality of blades. The retention device may have a body that defines an aperture adapted to receive a portion of a rotor mast of the aircraft, may comprise a rotor mast of the aircraft, or may comprise first and second plates that cooperate to form the array of cavities and that are adapted to receive a portion of the rotor mast of the aircraft.
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