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公开(公告)号：US09981750B2
公开(公告)日：2018-05-29
申请号：US15792686
申请日：2017-10-24
Applicant: Bell Helicopter Textron Inc.
Inventor： Jeffrey Matthew Williams , George Ryan Decker , James Everett Kooiman , Andrew G. Baines , Daniel J. Sweigard
CPC classification number: B64D27/26 , B64C3/32 , B64C27/22 , B64C27/26 , B64C29/0033 , B64D35/00 , B64D2027/266 , B64F5/40 , F16C17/022 , F16C17/26 , F16H2057/02043 , Y10T29/49318 , Y10T74/1966
Abstract: A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The pylon assembly includes a spindle gearbox having an input gear, a mast operably coupled to the input gear and a proprotor assembly operable to rotate with the mast. The spindle gearbox is rotatable about a conversion axis to selectively operate the tiltrotor aircraft between helicopter and airplane modes. A common shaft, rotatable about the conversion axis, is configured to transfer torque from an output gear of the fixed gearbox to an input gear of the spindle gearbox. Each of the inboard and outboard pedestals includes a spherical bearing providing a self-aligning coupling with the pylon assembly.
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公开(公告)号：US20180099758A1
公开(公告)日：2018-04-12
申请号：US15835617
申请日：2017-12-08
Applicant: Bell Helicopter Textron Inc.
Inventor： Jeffrey Matthew Williams , James Elbert King , James Everett Kooiman , Andrew G. Baines , Christopher R. Jackson , George Ryan Decker , Daniel J. Sweigard
IPC: B64D27/26 , B64C27/26 , B64C29/00 , F16H57/021 , F16H57/025 , B64C3/32 , B64D35/00 , F16H57/02
CPC classification number: B64D27/26 , B64C3/32 , B64C27/22 , B64C27/26 , B64C29/0033 , B64D35/00 , B64D2027/264 , B64D2027/266 , B64F5/40 , F16H57/021 , F16H57/025 , F16H2057/02043 , Y10T29/49318 , Y10T74/1966
Abstract: A pedestal assembly for receiving a pylon assembly of a tiltrotor aircraft having a helicopter mode and an airplane mode, the tiltrotor aircraft having an airframe including a fuselage and a wing. The pedestal assembly includes an inboard pedestal supported by the airframe and positioned above the wing. The inboard pedestal includes an inboard bearing assembly disposed within an inboard pillow block housing. The pedestal assembly also includes an outboard pedestal supported by the airframe and positioned above the wing. The outboard pedestal includes an outboard bearing assembly disposed within an outboard pillow block housing. The inboard and outboard bearing assemblies are operable to receive the pylon assembly therein such that the pylon assembly is rotatably mounted between the inboard and outboard pedestals to selectively operate the tiltrotor aircraft between the helicopter mode and the airplane mode.
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公开(公告)号：US09783292B2
公开(公告)日：2017-10-10
申请号：US15497055
申请日：2017-04-25
Applicant: Bell Helicopter Textron Inc.
Inventor： James Everett Kooiman , George Ryan Decker , Andrew G. Baines , David R. Bockmiller , Erick Wayne Kohler
CPC classification number: B64C29/0033 , B64C27/22 , B64D35/00 , B64F5/40 , F16H1/006 , Y10T29/49318 , Y10T74/1966
Abstract: A support assembly for coupling a first gearbox to an airframe of an aircraft. The first gearbox has an output gear operable to transfer torque to an input gear of a second gearbox via a common shaft rotatable about a longitudinal axis. The support assembly includes a fixed joint proximate the longitudinal axis. A first directional reacting joint remote from the longitudinal axis provides a first radial growth degree of freedom to the first gearbox relative to the longitudinal axis. A second directional reacting joint remote from the longitudinal axis provides a second radial growth degree of freedom to the first gearbox relative to the longitudinal axis. The first radial growth degree of freedom is not parallel with the second radial growth degree of freedom such that the support assembly maintains the output gear of the first gearbox in substantial collinear alignment with the input gear of the second gearbox.
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公开(公告)号：US20170137122A1
公开(公告)日：2017-05-18
申请号：US15417113
申请日：2017-01-26
Applicant: Bell Helicopter Textron Inc.
Inventor： James Everett Kooiman , George Ryan Decker , Andrew G. Baines , David R. Bockmiller , Erick Wayne Kohler
CPC classification number: B64C29/0033 , B64C27/22 , B64D35/00 , B64F5/40 , F16H1/006 , Y10T29/49318 , Y10T74/1966
Abstract: A drive system for a tiltrotor aircraft includes a first gearbox rotatably mounted to the airframe and rotatable about a longitudinal axis to operate the tiltrotor aircraft between helicopter and airplane modes. A second gearbox extends generally normal to the longitudinal axis of the first gearbox. A common shaft, rotatable about the longitudinal axis, transfers torque from an output gear of the second gearbox to an input gear of the first gearbox. A support assembly couples the second gearbox to the airframe and includes a fixed joint proximate the longitudinal axis, a first directional reacting joint remote from the longitudinal axis providing a first radial growth degree of freedom to the second gearbox and a second directional reacting joint remote from the longitudinal axis providing a second radial growth degree of freedom to the second gearbox that is not parallel with the first radial growth degree of freedom.
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公开(公告)号：US10399285B2
公开(公告)日：2019-09-03
申请号：US15423939
申请日：2017-02-03
Applicant: Bell Helicopter Textron Inc.
Inventor： David G. Carlson , John R. McCullough , Douglas K. Wolfe , Andrew G. Baines , George R. Decker
IPC: B29C70/34 , B29C35/02 , B29C70/54 , B29C70/06 , B29D99/00 , B64C1/12 , B64C3/26 , B29L31/30 , B64C29/00
Abstract: In one aspect, there is a method of making a pre-cured laminate having a total number of plies in a mold, the mold having a periphery defined by a forward edge, an aft edge, and outboard ends. The method includes selecting a first plurality of resin impregnated plies that continuously extend beyond the periphery of the mold, the first plurality of resin impregnated plies includes at least 50 percent of the total number of plies; laying the plies in a mold; compacting the plies in a mold; and pre-curing the plies to form a pre-cured laminate, which can extend beyond the periphery of the mold. In an embodiment, a pre-cured laminate includes a first plurality of resin impregnated plies that continuously extend beyond the periphery of the mold, the first plurality of resin impregnated plies includes at least 50 percent of the total number of plies.
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Patent Agency Ranking
公开(公告)号：US10040562B2
公开(公告)日：2018-08-07
申请号：US15844451
申请日：2017-12-15
Applicant: Bell Helicopter Textron Inc.
Inventor： James Everett Kooiman , George Ryan Decker , Matthew Carl VanBuskirk , Andrew G. Baines , Keith Alan Stanney
IPC: B64D27/26 , F16C17/02 , F16C17/26 , B64C29/00 , B64C27/26 , B64C3/32 , B64D35/00 , B64C27/22 , B64F5/40 , F16H57/02
Abstract: A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The pylon assembly includes a spindle gearbox having an input gear, a mast operably coupled to the input gear and a proprotor assembly operable to rotate with the mast. The spindle gearbox is rotatable about a conversion axis to selectively operate the tiltrotor aircraft between helicopter and airplane modes. A common shaft, rotatable about the conversion axis, is configured to transfer torque from an output gear of the fixed gearbox to the input gear of the spindle gearbox. Each of the inboard and outboard pedestals includes a journal bearing that provides a stiff coupling with the pylon assembly.
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公开(公告)号：US09868542B2
公开(公告)日：2018-01-16
申请号：US15407471
申请日：2017-01-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Jeffrey Matthew Williams , James Elbert King , James Everett Kooiman , Andrew G. Baines , Christopher R. Jackson , George Ryan Decker , Daniel J. Sweigard
IPC: B64D27/26 , F16H57/021 , F16H57/025 , B64C29/00 , B64C27/26 , B64C3/32 , B64D35/00 , F16H57/02
CPC classification number: B64D27/26 , B64C3/32 , B64C27/22 , B64C27/26 , B64C29/0033 , B64D35/00 , B64D2027/264 , B64D2027/266 , B64F5/40 , F16H57/021 , F16H57/025 , F16H2057/02043 , Y10T29/49318 , Y10T74/1966
Abstract: A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The pylon assembly includes a spindle gearbox having an input gear, a mast operably coupled to the input gear and a proprotor assembly operable to rotate with the mast. The spindle gearbox is rotatable about a conversion axis to selectively operate the tiltrotor aircraft between helicopter and airplane modes. A common shaft, rotatable about the conversion axis, is configured to transfer torque from an output gear of the fixed gearbox to the input gear of the spindle gearbox. Each of the inboard and outboard pedestals includes a pillow block housing such as a full or a split pillow block housing.
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公开(公告)号：US20170305567A1
公开(公告)日：2017-10-26
申请号：US15407481
申请日：2017-01-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Jeffrey Matthew Williams , George Ryan Decker , James Everett Kooiman , Andrew G. Baines , Daniel J. Sweigard
CPC classification number: B64D27/26 , B64C3/32 , B64C27/22 , B64C27/26 , B64C29/0033 , B64D35/00 , B64D2027/266 , B64F5/40 , F16C17/022 , F16C17/26 , F16H2057/02043 , Y10T29/49318 , Y10T74/1966
Abstract: A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The pylon assembly includes a spindle gearbox having an input gear, a mast operably coupled to the input gear and a proprotor assembly operable to rotate with the mast. The spindle gearbox is rotatable about a conversion axis to selectively operate the tiltrotor aircraft between helicopter and airplane modes. A common shaft, rotatable about the conversion axis, is configured to transfer torque from an output gear of the fixed gearbox to an input gear of the spindle gearbox. Each of the inboard and outboard pedestals includes a spherical bearing providing a self-aligning coupling with the pylon assembly.
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公开(公告)号：US20170305566A1
公开(公告)日：2017-10-26
申请号：US15407471
申请日：2017-01-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Jeffrey Matthew Williams , James Elbert King , James Everett Kooiman , Andrew G. Baines , Christopher R. Jackson , George Ryan Decker , Daniel J. Sweigard
IPC: B64D27/26 , B64C29/00 , F16H57/021 , B64C3/32 , B64D35/00 , B64C27/26 , F16H57/025 , F16H57/02
CPC classification number: B64D27/26 , B64C3/32 , B64C27/22 , B64C27/26 , B64C29/0033 , B64D35/00 , B64D2027/264 , B64D2027/266 , B64F5/40 , F16H57/021 , F16H57/025 , F16H2057/02043 , Y10T29/49318 , Y10T74/1966
Abstract: A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The pylon assembly includes a spindle gearbox having an input gear, a mast operably coupled to the input gear and a proprotor assembly operable to rotate with the mast. The spindle gearbox is rotatable about a conversion axis to selectively operate the tiltrotor aircraft between helicopter and airplane modes. A common shaft, rotatable about the conversion axis, is configured to transfer torque from an output gear of the fixed gearbox to the input gear of the spindle gearbox. Each of the inboard and outboard pedestals includes a pillow block housing such as a full or a split pillow block housing.
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公开(公告)号：US09663225B1
公开(公告)日：2017-05-30
申请号：US15417113
申请日：2017-01-26
Applicant: Bell Helicopter Textron Inc.
Inventor： James Everett Kooiman , George Ryan Decker , Andrew G. Baines , David R. Bockmiller , Erick Wayne Kohler
CPC classification number: B64C29/0033 , B64C27/22 , B64D35/00 , B64F5/40 , F16H1/006 , Y10T29/49318 , Y10T74/1966
Abstract: A drive system for a tiltrotor aircraft includes a first gearbox rotatably mounted to the airframe and rotatable about a longitudinal axis to operate the tiltrotor aircraft between helicopter and airplane modes. A second gearbox extends generally normal to the longitudinal axis of the first gearbox. A common shaft, rotatable about the longitudinal axis, transfers torque from an output gear of the second gearbox to an input gear of the first gearbox. A support assembly couples the second gearbox to the airframe and includes a fixed joint proximate the longitudinal axis, a first directional reacting joint remote from the longitudinal axis providing a first radial growth degree of freedom to the second gearbox and a second directional reacting joint remote from the longitudinal axis providing a second radial growth degree of freedom to the second gearbox that is not parallel with the first radial growth degree of freedom.
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