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公开(公告)号：US11643195B2
公开(公告)日：2023-05-09
申请号：US16878045
申请日：2020-05-19
Applicant: Bell Textron Inc.
Inventor： Bryan Kenneth Baskin
CPC classification number: B64C27/463 , B64C27/50 , B64C29/0033
Abstract: Embodiments are directed to a rotor blade comprising a blade tip attached to the outboard end of the rotor blade. The blade tip has at least two sides that are tapered together to an edge. The length of the blade tip extending away from the outboard end to the edge is a distance that is greater than half the thickness of the outboard end. When the rotor blade is operating in a folded configuration, air flows over the sides in a direction generally parallel to a longitudinal axis of the rotor blade. The sides have profiles that minimize or prevent separation of the air flow from the blade tip.
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公开(公告)号：US20230118750A1
公开(公告)日：2023-04-20
申请号：US17503736
申请日：2021-10-18
Applicant: Bell Textron Inc.
Inventor： Bryan Kenneth Baskin , Kyle Thomas Cravener , Andrew Ryan Maresh
Abstract: A teeter flap lock for an aircraft may include at least one pair of diametrically positioned teeter flap lock plates extending from a rotor teetering hinge, spaced apart from a rotor mast of the aircraft. A teeter flap lock block is positioned about the rotor mast and is configured to fit between the teeter flap lock plates and the rotor mast. The teeter flap lock block fits between and contacts the teeter flap lock plates in an engaged position, and is movable between the engaged position and a disengaged position relative to the teeter flap lock plates. The teeter flap lock enables flapping of rotors coupled to the rotor mast via the teetering hinge when the teeter flap lock block is in the disengaged position and disables flapping of the rotors when the teeter flap lock block is in the engaged position.
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公开(公告)号：US11618557B2
公开(公告)日：2023-04-04
申请号：US17004919
申请日：2020-08-27
Applicant: Bell Textron Inc.
Inventor： Bryan Kenneth Baskin
Abstract: An elastomeric bearing assembly has a centrifugal force bearing axially captured relative to a sliding interface. The sliding interface has one or more low friction regions and one or more high friction regions. One or more piezo actuators are configured to force one or more corresponding high friction regions against the centrifugal force bearing when actuated. The sliding interface may have a circular shape, wherein the one or more low friction regions and the one or more high friction regions are alternating concentric segments of the sliding interface. The one or more high friction regions are recessed on the sliding interface relative to the one or more low friction regions.
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Patent Agency Ranking
公开(公告)号：US20230008322A1
公开(公告)日：2023-01-12
申请号：US17369470
申请日：2021-07-07
Applicant: Bell Textron Inc.
Inventor： Brian E. Tucker , Bryan Kenneth Baskin
IPC: G01M13/04 , B64C27/605
Abstract: Embodiments are directed to systems and methods for estimating wear in aircraft rotor systems. Data associated with loads and motions of a swashplate actuator is collected. The swashplate actuator drives a swashplate and at least one control link is coupled to the swashplate. The loads and motions of the at least one control link is estimated based upon the loads and motions of the swashplate actuator. Using a wear model, the current wear of control link components is estimated due to the loads and motions of the at least one control link. Wear estimates for the components are aggregated across multiple flights and used to determine when maintenance actions should occur.
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公开(公告)号：US11891167B2
公开(公告)日：2024-02-06
申请号：US17503736
申请日：2021-10-18
Applicant: Bell Textron Inc.
Inventor： Bryan Kenneth Baskin , Kyle Thomas Cravener , Andrew Ryan Maresh
CPC classification number: B64C27/322 , B64C29/0033
Abstract: A teeter flap lock for an aircraft may include at least one pair of diametrically positioned teeter flap lock plates extending from a rotor teetering hinge, spaced apart from a rotor mast of the aircraft. A teeter flap lock block is positioned about the rotor mast and is configured to fit between the teeter flap lock plates and the rotor mast. The teeter flap lock block fits between and contacts the teeter flap lock plates in an engaged position, and is movable between the engaged position and a disengaged position relative to the teeter flap lock plates. The teeter flap lock enables flapping of rotors coupled to the rotor mast via the teetering hinge when the teeter flap lock block is in the disengaged position and disables flapping of the rotors when the teeter flap lock block is in the engaged position.
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公开(公告)号：US20210362845A1
公开(公告)日：2021-11-25
申请号：US16878045
申请日：2020-05-19
Applicant: Bell Textron Inc.
Inventor： Bryan Kenneth Baskin
Abstract: Embodiments are directed to a rotor blade comprising a blade tip attached to the outboard end of the rotor blade. The blade tip has at least two sides that are tapered together to an edge. The length of the blade tip extending away from the outboard end to the edge is a distance that is greater than half the thickness of the outboard end. When the rotor blade is operating in a folded configuration, air flows over the sides in a direction generally parallel to a longitudinal axis of the rotor blade. The sides have profiles that minimize or prevent separation of the air flow from the blade tip.
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公开(公告)号：US12130199B2
公开(公告)日：2024-10-29
申请号：US17369470
申请日：2021-07-07
Applicant: Bell Textron Inc.
Inventor： Brian E. Tucker , Bryan Kenneth Baskin
IPC: G01M13/04 , B64C13/50 , B64C27/605
CPC classification number: G01M13/04 , B64C27/605 , B64C13/503
Abstract: Embodiments are directed to systems and methods for estimating wear in aircraft rotor systems. Data associated with loads and motions of a swashplate actuator is collected. The swashplate actuator drives a swashplate and at least one control link is coupled to the swashplate. The loads and motions of the at least one control link is estimated based upon the loads and motions of the swashplate actuator. Using a wear model, the current wear of control link components is estimated due to the loads and motions of the at least one control link. Wear estimates for the components are aggregated across multiple flights and used to determine when maintenance actions should occur.
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公开(公告)号：US20220063797A1
公开(公告)日：2022-03-03
申请号：US17004919
申请日：2020-08-27
Applicant: Bell Textron Inc.
Inventor： Bryan Kenneth Baskin
Abstract: An elastomeric bearing assembly has a centrifugal force bearing axially captured relative to a sliding interface. The sliding interface has one or more low friction regions and one or more high friction regions. One or more piezo actuators are configured to force one or more corresponding high friction regions against the centrifugal force bearing when actuated. The sliding interface may have a circular shape, wherein the one or more low friction regions and the one or more high friction regions are alternating concentric segments of the sliding interface. The one or more high friction regions are recessed on the sliding interface relative to the one or more low friction regions.
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