-
公开(公告)号：US11865382B2
公开(公告)日：2024-01-09
申请号：US17158496
申请日：2021-01-26
Applicant: Bell Textron Inc.
Inventor： Thomas Dewey Parsons , Keith David Weaver , Chris James Ludtke , Paul Madej , Andrew Jordan Birkenheuer
CPC classification number: A62C3/08 , A62C31/02 , A62C35/023 , A62C35/68
Abstract: Embodiments are directed to a rotorcraft comprising an airframe having an engine compartment, an engine disposed within the engine compartment, at least one fire bottle configured to hold a fire extinguishing agent, at least one agent tube coupled to the fire bottle and configured to carry the fire extinguishing agent to the engine compartment, and a nozzle on the at least one agent tube, the nozzle positioned above the engine and oriented in a downward-facing direction. The nozzle has at least one opening and is configured to allow liquid to drain out of the at least one opening instead of allowing the liquid to flow into the at least one agent tube. The nozzle may have a chamfer opening that faces downward.
-
公开(公告)号：US11858629B2
公开(公告)日：2024-01-02
申请号：US17516087
申请日：2021-11-01
Applicant: Bell Textron Inc.
Inventor： Christopher E. Foskey , Ryan Q. Dunham
Abstract: A wing apparatus and aircraft are described providing greater maneuverability and efficiency for vertical takeoff and landing vehicles. Use of a fowler flap is shown in combination with a sliding panel. The sliding panel can nest within a wing similar to a fowler flap. During vertical maneuvers the sliding panel can be moved forward and on top of the wing. This can alleviate download during vertical maneuvers while minimizing drag as forward flight begins.
-
公开(公告)号：US11845534B2
公开(公告)日：2023-12-19
申请号：US16732083
申请日：2019-12-31
Applicant: Bell Textron Inc.
Inventor： Karl Schroeder , Jonathan Knoll , George Matthew Thompson
CPC classification number: B64C11/02 , B64C11/001 , B64C29/0033
Abstract: A ducted-rotor aircraft includes a fuselage and first and second ducts that are coupled to the fuselage. Each duct includes a duct ring, a rotor having a plurality of blades, a hub that positions the rotor such that the blades define a blade plane of rotation within the duct ring, and a plurality of stators that are coupled to the hub at respective locations aft of the blade plane of rotation. Each of the plurality of stators defines a leading edge that is slanted toward the blade plane of rotation. The leading edges of the stators are slanted to follow a contour defined by the blades. The leading edges may also be slanted to maintain a distance of at least one blade inboard chord length between the leading edges of the stators and respective trailing edges of the blades.
-
公开(公告)号：US11831220B2
公开(公告)日：2023-11-28
申请号：US16908286
申请日：2020-06-22
Applicant: Bell Textron Inc.
Inventor： Grant Beall
CPC classification number: H02K7/116 , B64C29/0033 , B64D27/24 , H02K5/10 , H02K5/15 , H02K7/108 , H02K11/33
Abstract: A motor assembly is described and includes a housing having a forward endplate and a rear endplate; a plurality of motors disposed within the housing; and a drive shaft driven by the plurality of motors and having a first end extending through the forward endplate of the housing and a second end extending through the rear endplate of the housing, wherein the first end of the drive shaft is configured to engage with a gearbox.
-
公开(公告)号：US11827344B2
公开(公告)日：2023-11-28
申请号：US17116726
申请日：2020-12-09
Applicant: Bell Textron Inc.
Inventor： Alexander Dang Quang Truong , Karl Schroeder , Michael John Ryan
CPC classification number: B64C27/20 , B64C39/024 , B64D2033/0206 , B64U10/13 , B64U30/20 , B64U50/14
Abstract: An exemplary ducted fan includes a duct having a central longitudinal axis, a rotor hub and stator hub extending along the central longitudinal axis, rotor blades extending from the rotor hub, each of the rotor blades operable to rotate about its own pitch-change axis, the pitch-change axes lying in a rotor plane that is generally perpendicular to the central longitudinal axis, each of the rotor blades having a rotor trailing edge and a rotor chord length, stators extending from the stator hub to an interior surface of the duct, each of the stators having a stator leading edge and a stator thickness, and a first separation between the rotor plane and the stator leading edge of not less than approximately 1.5 times the stator thickness.
-
Patent Agency Ranking
公开(公告)号：US11807358B2
公开(公告)日：2023-11-07
申请号：US17074172
申请日：2020-10-19
Applicant: Bell Textron Inc.
Inventor： Brian Erik Barnes , Gary Miller
CPC classification number: B64C29/02 , B60F5/02 , B63B43/12 , B63B79/40 , B64U10/20 , B64U60/10 , B63G8/001
Abstract: A submersion system for a rotorcraft is described and includes a control module for controlling a depth to which the rotorcraft is submerged in a body of water; a compressed air chamber associated with the control module; and at least one flotation pod including a sealable opening on a top surface thereof and an opening on a bottom surface thereof. The control module selectively causes water to be taken into the at least one flotation pod to cause the submersion system to submerge in the body of water and selectively causes water to be evacuated from the at least one flotation pod to cause the submersion system to float in the body of water.
-
公开(公告)号：US11802632B2
公开(公告)日：2023-10-31
申请号：US17362475
申请日：2021-06-29
Applicant: Bell Textron Inc.
Inventor： David M. Angell , Keith D. Weaver , Richard G. Otten
CPC classification number: F16K37/0041 , F16K1/221 , G05B15/02
Abstract: A method and system for controlling a fluid valve are described that avoid the effects of hysteresis. In hysteresis, the power signals associated with a valve position are different on the upstroke and downstroke. As a result, predicting the valve position can be difficult if you only know the current power signal. Instead of using upstrokes and downstrokes, a valve can momentarily be set to zero power, or a rest position when receiving a new command signal. This way the command signal is applied from a zero power or rest position, making the valve position more predictable and accurate.
-
公开(公告)号：US11781544B2
公开(公告)日：2023-10-10
申请号：US17075281
申请日：2020-10-20
Applicant: Bell Textron Inc.
Inventor： Grant Beall , Stephen Yibum Chung
CPC classification number: F04C2/102 , F04C15/008 , F04C15/0073
Abstract: A rotor system comprising a driveshaft; at least one motor for providing rotational energy for the driveshaft; an overrunning clutch connected to the motor and disposed around the driveshaft, wherein the overrunning clutch is rotated by the at least one motor; and a pump assembly associated with the at least one motor, the pump assembly comprising a large bore through which the driveshaft passes such that the pump assembly is arranged concentric to the driveshaft, the pump assembly further comprising a gerotor pump comprising inner and outer gerotor pump gears, wherein an inner bore of the gerotor pump engages and is driven by the overrunning clutch; and a cover disposed over the gerotor pump for providing a sump for the gerotor pump.
-
公开(公告)号：US11772804B2
公开(公告)日：2023-10-03
申请号：US17148273
申请日：2021-01-13
Applicant: Bell Textron Inc.
Inventor： Jonathan Andrew Knoll , George Matthew Thompson , Charles Hubert Speller , Grant Michael Beall
CPC classification number: B64D27/24 , B64C29/0033 , B64D35/08
Abstract: A rotor system for an aircraft is described and includes an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast. The drive system includes at least one electric motor for providing rotational energy to a motor shaft; and a gearbox connected to the drive shaft for receiving rotational energy from the at least one electric motor via the motor shaft and providing rotational energy to the rotor mast via a rotor shaft.
-
公开(公告)号：US11761866B2
公开(公告)日：2023-09-19
申请号：US17678808
申请日：2022-02-23
Applicant: Bell Textron Inc.
Inventor： Louis Charron , Maxime Lapalme , Daniel Del Rossi , Alexis Dugré
CPC classification number: G01N3/20 , G01M5/0016 , G01N2203/0073
Abstract: An apparatus for introducing a test load to a rotor blade test specimen for fatigue testing includes a body extending along a longitudinal axis in a first direction from a first end to a second end, and the body having an internal cavity with an opening at the second end configured to dispose a tip portion of the rotor blade test specimen.
-
-
-
-
-
-
-
-
-
Search Results
683
records
(took 0.033 seconds)
