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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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公开(公告)号：US20190338810A1
公开(公告)日：2019-11-07
申请号：US15972170
申请日：2018-05-06
Applicant: Bell Helicopter Textron Inc.
Inventor： Colton Gilliland , Mark Alan Przybyla
Abstract: A locking mechanism for locking a driveshaft in cooperative engagement with an apparatus includes a drive portion coupled to the driveshaft and a driven portion coupled to the apparatus. The drive portion of the locking mechanism includes a housing with a first engagement portion, a ball cage with a plurality locking balls contained at least partially therein, and a chock biased away from the housing by a chock spring. The chock includes an outer wall configured to push the locking balls outward in a locked position and allow inward movement in an unlocked position. Movement of the chock, and therefore locking, is controlled by an actuator rod extending through a center of the locking mechanism. The driven portion includes a second engagement portion configured to cooperatively engage and receive torque from the first engagement portion, and a locking groove configured to receive a portion of each of the plurality of locking balls therein.
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公开(公告)号：US10781863B2
公开(公告)日：2020-09-22
申请号：US15972170
申请日：2018-05-06
Applicant: Bell Helicopter Textron Inc.
Inventor： Colton Gilliland , Mark Alan Przybyla
Abstract: A locking mechanism for locking a driveshaft in cooperative engagement with an apparatus includes a drive portion coupled to the driveshaft and a driven portion coupled to the apparatus. The drive portion of the locking mechanism includes a housing with a first engagement portion, a ball cage with a plurality locking balls contained at least partially therein, and a chock biased away from the housing by a chock spring. The chock includes an outer wall configured to push the locking balls outward in a locked position and allow inward movement in an unlocked position. Movement of the chock, and therefore locking, is controlled by an actuator rod extending through a center of the locking mechanism. The driven portion includes a second engagement portion configured to cooperatively engage and receive torque from the first engagement portion, and a locking groove configured to receive a portion of each of the plurality of locking balls therein.
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公开(公告)号：US20190277392A1
公开(公告)日：2019-09-12
申请号：US15915699
申请日：2018-03-08
Applicant: Bell Helicopter Textron Inc.
Inventor： Colton Gilliland
IPC: F16H57/022 , B64D35/00
Abstract: A cam-locking system for use with a retractable driveshaft that includes a housing, a cam carrier located at least partially the housing, and a cam rotatably coupled to the cam carrier. Translation of the cam carrier along a central axis allows the cam to rotate into cooperative engagement with a catch recess on an interior surface of the housing, preventing the cam carrier from translating backwards, and thereby maintaining the retractable driveshaft in an engaged position. Further advancement of the cam carrier allows that cam to rotate into and unlocking gap in the interior surface of the housing, which enables the cam carrier to translate backwards along the central axis below the locked position, thereby disengaging the retractable driveshaft.
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公开(公告)号：US10851896B2
公开(公告)日：2020-12-01
申请号：US15898541
申请日：2018-02-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Colton Gilliland
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 drive component 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 mid-wing gearbox is misaligned with the retractable driveshaft when the wing assembly is in the stowed position. A seal is coupled to the drive component at a first end and the mid-wing gearbox at a second end and deploys in order to maintain a sealed connection between the drive component and the mid-wing gearbox when the wing assembly is transitioned between the flight position and the stowed position.
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Patent Agency Ranking
公开(公告)号：US20200223533A1
公开(公告)日：2020-07-16
申请号：US16244512
申请日：2019-01-10
Applicant: Bell Helicopter Textron Inc.
Inventor： Colton Gilliland , Tyson Henry
Abstract: A dynamic rotor-phasing unit can phase rotors in-flight for dynamic rotor tuning and in an idle state for aircraft storage. The input and output shafts can be clocked (e.g., rotated) from 0 degrees apart to in excess of 360 degrees apart or from 0 degrees apart to 140 degrees apart. Such rotation can minimize the footprint of an aircraft for stowing purposes, as the rotor blades can be folded to fit within a smaller area without disconnecting the drive system. Additionally, the unit can allow tiltrotor blades to be clocked during flight, which can allow the live-tuning of the aircraft's rotor dynamics. A fail-safe rotary actuator can rotate a stationary planet carrier to clock the input shaft and the output shaft. Alternatively, an actuator can position a slider housing to clock the input shaft and the output shaft.
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公开(公告)号：US20200172260A1
公开(公告)日：2020-06-04
申请号：US16208048
申请日：2018-12-03
Applicant: Bell Helicopter Textron Inc.
Inventor： Russell L. Mueller , Tyson Henry , Colton Gilliland
IPC: B64D35/00 , B64C29/00 , F16H57/032 , F16H57/04
Abstract: Briefly, the disclosure relates to apparatuses and methods to form a gearbox enclosure comprising an external liner, an internal liner, and a variable porosity region disposed between the external liner and the internal liner. The variable porosity region may be configured to accommodate flow of the lubricant, thereby providing a capability to cool, for example, a lubricating fluid at an elevated temperature.
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公开(公告)号：US20200166119A1
公开(公告)日：2020-05-28
申请号：US16201748
申请日：2018-11-27
Applicant: Bell Helicopter Textron Inc.
Inventor： Douglas Robert Mueller , Colton Gilliland
IPC: F16H57/04
Abstract: Various implementations described herein are directed to an emergency lubrication system for a tiltrotor aircraft. The emergency lubrication system includes a pressurized material chamber, a lubrication chamber, a first valve between the pressurized material chamber and the lubrication chamber, a gearbox, and a second valve between the lubrication chamber and the gearbox. The first valve is configured to operate in a first mode when the emergency lubrication system is in a first configuration and a second mode when the emergency lubrication system is in a second configuration.
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公开(公告)号：US11009078B2
公开(公告)日：2021-05-18
申请号：US15961609
申请日：2018-04-24
Applicant: Bell Helicopter Textron Inc.
Inventor： Colton Gilliland , Russell L. Mueller
Abstract: A driveshaft includes a first end, a second end, and a length extending from the first end to the second end. The driveshaft includes an engagement section at the first end configured to cooperatively engage and transfer torque to a gearbox. The driveshaft also includes a compressible section configured to selectively decrease the length of the driveshaft. The driveshaft being configured to transition between an engaged configuration, wherein the engagement portion is engaged with the gearbox, and a disengaged configuration, wherein the compressible section is compressed, and the engagement portion is disengaged from the apparatus.
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公开(公告)号：US20190389571A1
公开(公告)日：2019-12-26
申请号：US16014441
申请日：2018-06-21
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 below the wing of the tiltrotor aircraft, and the rotatable proprotor assembly is 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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