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公开(公告)号：US11022477B2
公开(公告)日：2021-06-01
申请号：US16213575
申请日：2018-12-07
Applicant: Bell Helicopter Textron Inc.
Inventor： Eric Stephen Olson
IPC: G01F23/296
Abstract: An exemplary liquid tank level measurement system includes a tank having a wall, an accelerometer attached to the wall and configured to measure a vibration in the wall, and an instrument electronically connected to the accelerometer, the instrument configured to communicate a liquid level condition responsive to a vibration measurement received from the accelerometer.
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2.发明申请公开(公告)号：US20190301537A1
公开(公告)日：2019-10-03
申请号：US15942554
申请日：2018-04-01
Applicant: Bell Helicopter Textron Inc.
Inventor： Eric Stephen Olson
Abstract: A locking system for use with a retractable driveshaft includes a housing, a rotating locking ring located at least partially the housing, and a band configured to cooperatively engage the rotatable locking ring. Applying an axial force to the locking ring with the driveshaft causes rotation of the locking ring, thereby locking the driveshaft with the lousing. Applying a second axial force to the locking ring with the driveshaft causes further rotation of the locking ring, which allows withdrawal of the driveshaft from the housing.
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公开(公告)号：US11060562B2
公开(公告)日：2021-07-13
申请号：US15942554
申请日：2018-04-01
Applicant: Bell Helicopter Textron Inc.
Inventor： Eric Stephen Olson
Abstract: A locking system for use with a retractable driveshaft includes a housing, a rotating locking ring located at least partially to the housing, and a band configured to cooperatively engage the rotatable locking ring. Applying an axial force to the locking ring with the driveshaft causes rotation of the locking ring, thereby locking the driveshaft with the housing. Applying a second axial force to the locking ring with the driveshaft causes further rotation of the locking ring, which allows withdrawal of the driveshaft from the housing.
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公开(公告)号：US11009116B2
公开(公告)日：2021-05-18
申请号：US15961370
申请日：2018-04-24
Applicant: Bell Helicopter Textron Inc.
Inventor： Eric Stephen Olson , David Bockmiller
IPC: F16H57/04
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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公开(公告)号：US10800510B2
公开(公告)日：2020-10-13
申请号：US15898550
申请日：2018-02-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Eric Stephen Olson , David Russell Bockmiller
Abstract: Systems and methods include providing an aircraft with a fuselage and a wing assembly rotatable relative to the fuselage about a stow axis between a flight position and a stowed position. The aircraft includes a gearbox having a retractable driveshaft that selectively engages the mid-wing gearbox via axially translatable motion along a rotation axis when the wing assembly is in the flight position. The retractable driveshaft also selectively disengages the mid-wing gearbox in the flight position to allow selectively rotation of the wing assembly about the stow axis from the flight position to the stowed position resulting in the mid-wing gearbox being misaligned with the retractable driveshaft when the wing assembly is in the stowed position.
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Patent Agency Ranking
公开(公告)号：US20200158181A1
公开(公告)日：2020-05-21
申请号：US16195818
申请日：2018-11-19
Applicant: Bell Helicopter Textron Inc.
IPC: F16D1/08
Abstract: Briefly, implementations of claimed subject matter relate to methods and devices for coupling a first rotating shaft to a second shaft. In a particular implementation, an end of a plurality of resilient fingers of a resilient structure may be radially displaced to permit positioning of the resilient structure over a first shaft. An inwardly-directed portion of each of the plurality of the resilient fingers of the resilient structure may be secured to a channel located on an inner surface of a second shaft. After securing the resilient structure to the second shaft, the one or more resilient fingers of the resilient structure may be positioned within a slotted ladder ring encircling the first shaft.
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公开(公告)号：US20180202484A1
公开(公告)日：2018-07-19
申请号：US15406745
申请日：2017-01-15
Applicant: Bell Helicopter Textron Inc.
Inventor： Eric Stephen Olson
CPC classification number: F16C3/02 , B23F19/005 , F16D1/10 , F16D3/185 , F16D2001/103 , F16D2250/00 , Y10T403/7035
Abstract: A drive shaft includes a plurality of external crowned spline teeth configured for transmitting torque in a drive system such that contact stress can remain substantially even as misalignments occur. The drive shaft can be manufactured by forming a groove in a drive shaft blank in a direction perpendicular to the side faces of the spline teeth being formed. The resulting spline teeth can have crowned side-wall surfaces that have equal crown drops along the height of the side walls of the spline teeth.
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公开(公告)号：US20180163795A1
公开(公告)日：2018-06-14
申请号：US15375134
申请日：2016-12-11
Applicant: Bell Helicopter Textron, Inc.
Inventor： Eric Stephen Olson , David Russell Bockmiller
CPC classification number: F16D41/07 , B64C27/12 , B64C29/0033 , F16H55/17 , F16H57/0025 , F16H57/021 , F16H2057/02043
Abstract: A drivetrain subassembly includes a clutch portion and a gear shaft portion connected by an integrated inner race/gear shaft member. The clutch portion includes a sprag clutch configured to transfer torque from an engine to a rotor system while allowing the rotor system to continue to rotate in the event of an engine failure. The inner race of the clutch portion is integrally formed with the gear shaft of the gear shaft portion of the subassembly. The gear shaft is configured to rotate about the longitudinal axis of the sprag clutch for transmitting torque from the sprag clutch to a downstream drivetrain component.
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公开(公告)号：US11428272B2
公开(公告)日：2022-08-30
申请号：US16195818
申请日：2018-11-19
Applicant: Bell Helicopter Textron Inc.
Abstract: Briefly, implementations of claimed subject matter relate to methods and devices for coupling a first rotating shaft to a second shaft. In a particular implementation, an end of a plurality of resilient fingers of a resilient structure may be radially displaced to permit positioning of the resilient structure over a first shaft. An inwardly-directed portion of each of the plurality of the resilient fingers of the resilient structure may be secured to a channel located on an inner surface of a second shaft. After securing the resilient structure to the second shaft, the one or more resilient fingers of the resilient structure may be positioned within a slotted ladder ring encircling the first shaft.
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公开(公告)号：US20190389572A1
公开(公告)日：2019-12-26
申请号：US16015760
申请日：2018-06-22
Applicant: Bell Helicopter Textron Inc.
Inventor： Colton Gilliland , Jeffrey Williams , Michael E. Rinehart , James Kooiman , Mark Przybyla , Clegg Smith , Eric Stephen Olson , George Ryan Decker , David Russell Bockmiller
Abstract: A tiltrotor aircraft includes a propulsion system with a fixed engine and a rotatable proprotor. The engine is located on the top surface of the wing of the tiltrotor aircraft, and the rotatable proprotor assembly is also mounted on the top surface of the wing. The engine and proprotor assembly are connected via a series of one or more gearboxes that route the engine output from the engine to the proprotor.
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