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公开(公告)号：US11279464B2
公开(公告)日：2022-03-22
申请号：US16574459
申请日：2019-09-18
Applicant: Bell Textron Inc.
Inventor： Christopher Edward Foskey , Troy Cyril Schank
Abstract: An aircraft includes a pylon rotatable relative to a wing, a proprotor assembly carried by the pylon, the proprotor assembly have a proprotor blade that is foldable to a stowed position extending substantially parallel to the pylon, and a fluidic clamp positioned with the pylon and configured to grip the proprotor blade when in the stowed position, the fluidic clamp including a first inflatable bladder positioned on a first side of an opening for receiving a portion of a proprotor blade and a pressurized fluid source in fluid connection with the first inflatable bladder.
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公开(公告)号：US20220081106A1
公开(公告)日：2022-03-17
申请号：US17018562
申请日：2020-09-11
Applicant: Bell Textron Inc.
Inventor： Gary MILLER , Ken SHUNDO , Diana TINLIN
Abstract: A magnetic spacer system for a spinner of a rotorcraft includes a first ring of a plurality of magnets secured to the spinner and having an inner surface facing radially inward, and a second ring of a plurality of magnets secured to a nacelle of the rotorcraft and having an outer surface facing radially outward. The first and second rings of multiple magnets are arranged concentrically, and a portion of the inner surface of the first ring of a plurality of magnets and a portion of the outer surface of the second ring of a plurality of magnets have the same polarity to repel one another. In other aspects, the magnetic spacer system may be replaced by a low-friction system.
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公开(公告)号：US20210406742A1
公开(公告)日：2021-12-30
申请号：US16912626
申请日：2020-06-25
Applicant: Bell Textron Inc.
Inventor： Matthew Curtis LEDBETTER , Silvio Mario LOPEZ , Drew Franklin WALLER
Abstract: In an embodiment, a method includes acquiring a current condition indicator of a condition indicator set associated with an operating condition of a machine, the condition indicator set indicating sensor readings associated with an operating element of the machine under the operating condition. The method also includes determining, by a data server, a relative trend significance over a trend window of the condition indicator set based, at least in part, on an evaluation of the trend window in relation to a historical window of the condition indicator set. The method also includes determining, by the data server, whether trend criteria associated with the operating element is satisfied, where the trend criteria may include criteria related to the relative trend significance. The method also includes executing, by the data server, an alerting process in response to the determining that the trend criteria is satisfied.
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公开(公告)号：US20210403149A1
公开(公告)日：2021-12-30
申请号：US16912513
申请日：2020-06-25
Applicant: Bell Textron Inc.
Inventor： Brad Joseph Passe , Nicholas Ralph Carlson , George Matthew Thompson
Abstract: A rotor system includes a rotor assembly and a duct system. The rotor assembly includes rotor blades extending from a mast axis and configured to rotate about the mast axis. The duct assembly includes a moveable duct portion and a stationary duct portion. In a first duct configuration, the moveable duct portion surrounds a first portion of the rotor assembly, the stationary duct portion surrounds a second portion of the rotor assembly, and the moveable duct portion and the stationary duct portion enclose the rotor assembly. In a second duct configuration, the stationary duct portion surrounds the second portion of the rotor assembly, and the moveable duct portion is moved away from the first portion of the rotor assembly, such that the rotor assembly is not enclosed.
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公开(公告)号：US20210387722A1
公开(公告)日：2021-12-16
申请号：US16900543
申请日：2020-06-12
Applicant: Bell Textron Inc.
Inventor： Timothy Brian Carr , George Matthew Thompson
Abstract: One embodiment is a rotor system comprising a rotor duct; at least one rotor blade, wherein the at least one rotor blade comprises an outboard end; a tip extension mechanism affixed at the outboard end of the at least one rotor blade, wherein the tip extension mechanism comprises at least one shim, the at least one rotor blade with the tip extension mechanism affixed thereto comprising an extended rotor blade; and a blade tip affixed to an outboard end of the extended rotor blade, wherein the blade tip is affixed to the extended rotor blade via at least one removable fastener.
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Patent Agency Ranking
公开(公告)号：US20210380232A1
公开(公告)日：2021-12-09
申请号：US17029569
申请日：2020-09-23
Applicant: Bell Textron Inc.
Inventor： Gerard Michael Schneider , Lawrence Michael Petsch
Abstract: A pitch change link may include a shaft having a first end region and a second end region, and a bearing cartridge on at least one of the first end region and the second end region. The bearing cartridge may include a bearing and a bearing ring at least partially surrounding the bearing. The bearing ring may have a geometric symmetry and a cross section that is wider at a first end than at a second end, the first end may oppose the second end.
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公开(公告)号：US20210380231A1
公开(公告)日：2021-12-09
申请号：US16894321
申请日：2020-06-05
Applicant: Bell Textron Inc.
Inventor： Terry K. Thompson , Mark Wiinikka , Bryan Baskin , Vince Calabrese , Samantha Renee Lucero
IPC: B64C27/605
Abstract: One embodiment includes a swashplate assembly for a rotary aircraft, including: a rotating ring configured to rotate with a drive shaft of the rotary aircraft; a non-rotating ring coupled to the rotating ring and rotationally decoupled from the rotating ring, wherein the non-rotating ring does not rotate with the rotating ring and drive shaft; an outer casing disposed around the gearbox; and an anti-drive mechanism to maintain the outer casing rotationally stationary relative to the gearbox, the anti-drive mechanism including a key and slot system between the gearbox and the outer casing.
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公开(公告)号：US20210380230A1
公开(公告)日：2021-12-09
申请号：US17406174
申请日：2021-08-19
Applicant: Bell Textron Inc.
Inventor： Carlos Alexander Fenny , Jouyoung Jason Choi
Abstract: An aircraft comprises a fuselage, one or more support structures connected to the fuselage, one or more engines or motors disposed within or attached to the one or more support structures or the fuselage, and a distributed propulsion system. The distributed propulsion system comprising two or more propellers symmetrically distributed in an array along the one or more support structures with respect to a center of gravity of the aircraft and operably connected to the one or more engines or motors, wherein each propeller has a rotation direction within a tilted plane of rotation, and a summation of horizontal force vectors created by the tilted plane of rotation of all the propellers is substantially zero when all the propellers are creating a substantially equal thrust magnitude. Movement of the aircraft is controlled by selectively increasing or decreasing a thrust of at least one of the two or more propellers.
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公开(公告)号：US20210363791A1
公开(公告)日：2021-11-25
申请号：US16915429
申请日：2020-06-29
Applicant: Bell Textron Inc.
Inventor： William Anthony Amante , Arunkumar Koppa Siddalingappa , Darpan Bansal , Timothy Brian Carr
Abstract: A handle assembly for an access panel is described and includes a handle connected to a support structure integrated into and covered by a skin of the access panel, the handle comprising a grip portion and upper and lower flanges extending perpendicularly from the grip portion and having first ends connected to the grip portion and second ends connected to the support structure; and a cover disposed over an opening in the access panel skin and selectively transitionable between a closed position and an open position, the opening situated relative to the handle such that the handle is concealed when the cover is in a closed position and accessible via the opening when the cover is in an open position.
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公开(公告)号：US20210363781A1
公开(公告)日：2021-11-25
申请号：US16915268
申请日：2020-06-29
Applicant: Bell Textron Inc.
Inventor： William Anthony Amante , Arunkumar Koppa Siddalingappa
Abstract: A handle assembly for an access panel is described and includes a support structure attached to the access panel; a handle engaging with the support structure, the handle comprising a grip portion and upper and lower flanges extending perpendicularly from the grip portion; and a retention/extension mechanism for retaining the handle in a first position and for transitioning the handle to a second position after pressure is applied to and subsequently released from the handle.
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