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公开(公告)号：US11358729B2
公开(公告)日：2022-06-14
申请号：US17161183
申请日：2021-01-28
Applicant: Bell Textron Inc.
Inventor： Colton James Gilliland , Mark Alan Przybyla , Eric Stephen Olson
Abstract: An exemplary tiltrotor aircraft with a hybrid drive system includes a first propulsion system having a first engine and a first supplemental driver operably coupled to a first proprotor that is operable between a helicopter mode and an airplane mode and a second propulsion system having a second engine and a second supplemental driver operably coupled to a second proprotor that is operable between a helicopter mode and an airplane mode.
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公开(公告)号：US20210061453A1
公开(公告)日：2021-03-04
申请号：US17037512
申请日：2020-09-29
Applicant: Bell Textron Inc.
Inventor： Eric Stephen Olson
IPC: B64C27/12 , B64D35/02 , B64D27/10 , B64D27/24 , B64C27/06 , F16D41/06 , F16D48/02 , F16D41/08 , F16D25/062 , F16D28/00
Abstract: A failsafe multimode clutch assembly is positioned in a powertrain of a rotorcraft. The clutch assembly includes a freewheeling unit having input and output races. The freewheeling unit has a driving mode in which torque applied to the input race is transferred to the output race and an overrunning mode in which torque applied to the output race is not transferred to the input race. A bypass assembly has an engaged position that couples the input and output races of the freewheeling unit. An actuator assembly must be energized to shift the bypass assembly from the engaged position to a disengaged position. In the disengaged position, the overrunning mode of the freewheeling unit is enabled such that the clutch assembly is configured for unidirectional torque transfer. In the engaged position, the overrunning mode of the freewheeling unit is disabled such that the clutch assembly is configured for bidirectional torque transfer.
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公开(公告)号：US10906656B2
公开(公告)日：2021-02-02
申请号：US15967831
申请日：2018-05-01
Applicant: Bell Textron Inc.
Inventor： Colton James Gilliland , Mark Alan Przybyla , Eric Stephen Olson
Abstract: An exemplary tiltrotor aircraft with a hybrid drive system includes a first propulsion system having a first engine and a first supplemental driver operably coupled to a first proprotor that is operable between a helicopter mode and an airplane mode and a second propulsion system having a second engine and a second supplemental driver operably coupled to a second proprotor that is operable between a helicopter mode and an airplane mode.
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公开(公告)号：US10793284B2
公开(公告)日：2020-10-06
申请号：US16567086
申请日：2019-09-11
Applicant: Bell Textron Inc.
Inventor： David Andrew Prater , Eric Stephen Olson
Abstract: A multimode clutch assembly is positioned in a powertrain of a rotorcraft. The multimode clutch assembly includes a freewheeling unit having input and output races. The freewheeling unit has a driving mode in which torque applied to the input race is transferred to the output race and an overrunning mode in which torque applied to the output race is not transferred to the input race. A bypass assembly has an engaged position that couples the input and output races of the freewheeling unit. A hydraulic actuator shifts the bypass assembly between the engaged position and a disengaged position. In the disengaged position, the overrunning mode of the freewheeling unit is enabled such that the multimode clutch assembly is configured for unidirectional torque transfer. In the engaged position, the overrunning mode of the freewheeling unit is disabled such that the multimode clutch assembly is configured for bidirectional torque transfer.
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公开(公告)号：US10788088B2
公开(公告)日：2020-09-29
申请号：US16274520
申请日：2019-02-13
Applicant: Bell Textron Inc.
Inventor： Eric Stephen Olson , Mark Alan Przybyla , David R. Bockmiller
IPC: F16D41/07 , B64C27/12 , F16D1/10 , B64D35/08 , F16D121/04
Abstract: A selectable clutch assembly for a multimode powertrain of a rotorcraft. The selectable clutch assembly includes a freewheeling unit having input and output sides. The freewheeling unit has a driving mode wherein torque applied to the input side is transferred to the output side and an over running mode wherein torque applied to the output side is not transferred to the input side. A bypass assembly is coupled to and rotatable with the output side of the freewheeling unit and is actuatable between engaged and disengaged positions with the input side of the freewheeling unit. In the disengaged position, the freewheeling unit is operable in the driving and the over running modes such that the selectable clutch assembly is configured for unidirectional torque transfer. In the engaged position, the over running mode of the freewheeling unit is disabled such that the selectable clutch assembly is configured for bidirectional torque transfer.
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Patent Agency Ranking
公开(公告)号：US20220025941A1
公开(公告)日：2022-01-27
申请号：US17494356
申请日：2021-10-05
Applicant: Bell Textron Inc.
Inventor： Eric Stephen Olson , David Andrew Prater
IPC: F16D41/07 , F16D11/14 , F16D25/061 , F16D25/08 , F16D48/02 , F16D41/08 , F16D41/04 , B64C27/14 , B64D35/04 , B64D35/08
Abstract: A failsafe multimode clutch assembly positioned in a powertrain of a rotorcraft. The clutch assembly includes a freewheeling having a driving mode in which torque applied to the input race is transferred to the output race and an overrunning mode in which torque applied to the output race is not transferred to the input race. A bypass assembly has an engaged position that couples the input and output races of the freewheeling unit. An actuator assembly uses pressurized lubricating oil to shift the bypass assembly between the engaged position and a disengaged position. A lock assembly enables and disables actuation of the bypass assembly. In the disengaged position, the overrunning mode of the freewheeling unit enables a unidirectional torque transfer mode of the clutch assembly. In the engaged position, the overrunning mode of the freewheeling unit is disabled such that the clutch assembly is configured for bidirectional torque transfer.
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公开(公告)号：US12018724B2
公开(公告)日：2024-06-25
申请号：US17678708
申请日：2022-02-23
Applicant: Bell Textron Inc.
Inventor： Charles Jared Ott , Eric Stephen Olson
IPC: F16C35/06 , F16C33/12 , F16C33/58 , F16C35/063 , F16C35/07 , F16C35/073 , F16C43/04
CPC classification number: F16C35/073 , F16C33/12 , F16C33/586 , F16C35/063 , F16C43/04 , F16C2226/60 , F16C2326/43
Abstract: A bearing raceway for a shaft includes a tubular sleeve comprising a raceway section and a clamp section, the raceway section having a hardened outer surface and a first, axially linear, inner surface, and the clamp section having first threads and a second, axially non-linear, inner surface, where the first threads are configured to mate with second threads on a nut to clamp the tubular sleeve to the shaft.
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公开(公告)号：US20210070430A1
公开(公告)日：2021-03-11
申请号：US17063712
申请日：2020-10-05
Applicant: Bell Textron Inc.
Inventor： Douglas Andrew Goodwin , David Andrew Prater , Eric Stephen Olson , David Bryan Roberts , Chia-Wei Su , Michael David Trantham , Charles Eric Covington
Abstract: A multimode clutch assembly is positioned in a powertrain of a rotorcraft. The clutch assembly includes a freewheeling unit having a driving mode in which torque applied to the input race is transferred to the output race and an overrunning mode in which torque applied to the output race is not transferred to the input race. A bypass assembly has an engaged position that couples the input and output races of the freewheeling unit. An actuator assembly shifts the bypass assembly between engaged and disengaged positions. An engagement status sensor is configured to determine the engagement status of the bypass assembly. In the disengaged position, the overrunning mode of the freewheeling unit is enabled such that the clutch assembly is configured for unidirectional torque transfer. In the engaged position, the overrunning mode of the freewheeling unit is disabled such that the clutch assembly is configured for bidirectional torque transfer.
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公开(公告)号：US20200248760A1
公开(公告)日：2020-08-06
申请号：US16274520
申请日：2019-02-13
Applicant: Bell Textron Inc.
Inventor： Eric Stephen Olson , Mark Alan Przybyla , David R. Bockmiller
Abstract: A selectable clutch assembly for a multimode powertrain of a rotorcraft. The selectable clutch assembly includes a freewheeling unit having input and output sides. The freewheeling unit has a driving mode wherein torque applied to the input side is transferred to the output side and an over running mode wherein torque applied to the output side is not transferred to the input side. A bypass assembly is coupled to and rotatable with the output side of the freewheeling unit and is actuatable between engaged and disengaged positions with the input side of the freewheeling unit. In the disengaged position, the freewheeling unit is operable in the driving and the over running modes such that the selectable clutch assembly is configured for unidirectional torque transfer. In the engaged position, the over running mode of the freewheeling unit is disabled such that the selectable clutch assembly is configured for bidirectional torque transfer.
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公开(公告)号：US11713804B2
公开(公告)日：2023-08-01
申请号：US17307142
申请日：2021-05-04
Applicant: Bell Textron Inc.
Inventor： Eric Stephen Olson , David Bockmiller
IPC: F16H57/04
CPC classification number: F16H57/0427 , F16H57/045 , F16H57/0482
Abstract: An exemplary passive oil system includes a reservoir housing configured in operation to rotate around a rotational axis, the reservoir housing defining a reservoir between a top wall, a bottom wall, innermost side, and an outer sidewall; and an outlet positioned adjacent the outer sidewall to discharge a lubrication fluid contained in the reservoir in response to the reservoir housing rotating around the rotational axis.
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