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公开(公告)号：US20190323563A1
公开(公告)日：2019-10-24
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：US10450059B2
公开(公告)日：2019-10-22
申请号：US15882573
申请日：2018-01-29
Applicant: Bell Helicopter Textron Inc.
Inventor： Kyle Thomas Cravener , Tyler Wayne Baldwin , Nicholas Allen Torske
Abstract: A multi-piece inboard beam assembly for use in a rotor blade assembly of a rotorcraft. The inboard beam assembly includes an inboard beam connected to an inboard beam fitting with an anti-rotational connection. The inboard beam is connected to a yoke via bearings and the inboard beam fitting is connected to a grip in a double shear condition. In use, the grip, the inboard beam fitting with the double shear connection, the inboard beam, a centrifugal force bearing held by the inboard beam, and the yoke carry the centrifugal force created upon rotation of the rotor blade assembly.
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公开(公告)号：US20190315494A1
公开(公告)日：2019-10-17
申请号：US16182442
申请日：2018-11-06
Applicant: Bell Helicopter Textron Inc.
Inventor： Chad R. Haugeberg , Bradley D. Linton
Abstract: A device to verify main rotor swashplate positioning includes an inner surface of a first section and a gradient surface of a second section. The gradient surface of the second section may have a plurality of graduation indications. In one implementation, the inner surface of the first section at least partially defines a travel arc that is parallel to and concentric with the inner surface. In such an implementation, the device may be configured to move along the travel arc as it rotates about a collective sleeve to contact a swashplate lug.
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公开(公告)号：US20190315076A1
公开(公告)日：2019-10-17
申请号：US15951165
申请日：2018-04-11
Applicant: Bell Helicopter Textron Inc.
Inventor： Sébastien Duval , Pascal Flynn-Robitaille
IPC: B29C70/38 , B29C70/20 , B29C70/88 , B32B5/12 , B32B5/26 , B32B7/00 , B32B7/02 , B64C1/06 , G06F17/50
Abstract: Methods and systems for automated placement of composite material on a surface of a component, the composite material including unidirectional fibers, is provided. A set of fiber paths along the surface is established, the set of fiber paths comprising at least one ply, each ply comprising a respective plurality of fiber paths being substantially aligned with a respective direction. An isotropy factor for the component is determined based on the set of fiber paths, the isotropy factor being indicative of a distribution of the plurality of fiber paths on the surface. When the isotropy factor exceeds a predetermined threshold, a respective layer of composite material is applied to the surface of the component using an automated fiber placement machine and for each of the at least one ply, wherein the unidirectional fibers of the composite material are applied along the set of fiber paths.
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公开(公告)号：US10443706B2
公开(公告)日：2019-10-15
申请号：US16181641
申请日：2018-11-06
Applicant: Bell Helicopter Textron Inc.
Inventor： Ryan T. Ehinger
Abstract: According to one embodiment, a rotorcraft includes a body, a rotor blade, a drive system that can be operated to rotate the rotor blade, and an emergency valve control unit. The drive system contains a first gearbox assembly, a second gearbox assembly, a first lubrication system that can deliver lubricant to the first gearbox assembly, and a second lubrication system that can deliver lubricant to the second gearbox assembly. The drive system also contains an emergency valve that can be opened to deliver lubricant from the first lubrication system to the second gearbox assembly. The emergency valve control unit can instruct the emergency valve to open.
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Patent Agency Ranking
公开(公告)号：US10442544B2
公开(公告)日：2019-10-15
申请号：US15586136
申请日：2017-05-03
Inventor： Douglas Boyd , Brian Tucker
Abstract: A multi-engine power system is described that includes at least a first engine and a second engine configured to jointly provided mechanical power to the multi-engine power system. The multi-engine power system further includes a controller configured to estimate a deterioration factor of the first engine. The controller is further configured to adjust, based on the deterioration factor of the first engine, a first amount of mechanical power being provided by the first engine to increase a service time of the first engine, and adjust, based on the first amount of mechanical power being provided by the first engine, a second amount of mechanical power being provided by the second engine to compensate for the adjustment to the first amount of mechanical power.
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公开(公告)号：US10442539B2
公开(公告)日：2019-10-15
申请号：US15594360
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Gary S. Froman
Abstract: In one embodiment, a system may comprise an electro-thermal heating element and a controller. The electro-thermal heating element may be configured to heat a structure, and the controller may be configured to: identify a target temperature for the structure; identify a target rate of temperature change for the structure; identify a target voltage for heating the structure at the target rate of temperature change; and apply the target voltage to the electro-thermal heating element.
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公开(公告)号：US10435166B2
公开(公告)日：2019-10-08
申请号：US15597886
申请日：2017-05-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Brent Scannell , Jean Pierre Paradis , Thomas Mast
Abstract: An example cowling for a rotorcraft is hinged on a stationary part of an airframe of the rotorcraft and is pivotable from a closed position into a first partially open position and thereafter into a second fully open position. The example cowling includes a rod articulated on the cowling and having a free end configured to releasably engage with the airframe to hold the cowling in the first position; and at least one handhold attached to an exterior surface of the cowling, wherein the at least one handhold has a substantially straight section that in the fully open position rests on a top portion of the airframe so as to more evenly distribute the weight of the cowling on the airframe.
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公开(公告)号：US20190301653A1
公开(公告)日：2019-10-03
申请号：US15941297
申请日：2018-03-30
Applicant: Bell Helicopter Textron Inc.
Inventor： Stephen Dickison , Franklin J. Holik , Michael Pujol
Abstract: The present invention includes a fluid-fitting adapter body; a first connection mechanism in fluid communication with the fluid-fitting adapter body, the first connection mechanism including a first piston-style seal, wherein the first connection mechanism is operably configured to seal a connection to a first connection port of a multiport fitting, the multiport fitting including at least one additional connection port proximate to the first connection port, and wherein the first connection mechanism can be secured to the first connection port by manipulation of at least a portion of the first connection mechanism substantially along an axis that is substantially perpendicular to a surface of the multiport fitting in which the first connection port is located; and; a second connection mechanism in fluid communication with the fluid-fitting adapter body, the second connection mechanism being differently configured than the first connection mechanism.
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公开(公告)号：US20190300151A1
公开(公告)日：2019-10-03
申请号：US15942707
申请日：2018-04-02
Applicant: Bell Helicopter Textron Inc.
Inventor： Tyler Wayne Baldwin , Michael Dearman
Abstract: A light weight hybrid torque transfer joint trunnion has an integral metal hub spline fitting oriented on a center axis. This integral metal hub spline fitting may be made of steel, aluminum, titanium, or the like and may be generally cylindrical. The integral metal hub spline fitting defines an integral central internally-splined mast or driveshaft coupling opening centered about the center axis. A composite material body centrally retains, and is cured to, the metal hub spline fitting. Torque transfer joint link attachment pins extend from the composite material body and are rigidly linked to the metal hub spline fitting. In an example constant-velocity joint, a plurality of pivoting linkages may each be rotatably coupled to the torque transfer joint link attachment pins, and each of the plurality of pivoting linkages may, in turn be secured to a rotor yoke configured to mount a plurality of rotorcraft blades.
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