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Patent Agency Ranking
公开(公告)号：US10279900B2
公开(公告)日：2019-05-07
申请号：US15233897
申请日：2016-08-10
Applicant: Bell Helicopter Textron Inc.
Inventor： Daniel Bryan Robertson , Dudley Smith , Mark Dreier , Steve Ray Ivans , Kirk Landon Groninga
Abstract: In some embodiments, a rotorcraft includes a fuselage, a tailboom, a drive system and a variable thrust cross-flow fan system. The cross-flow fan system includes a cross-flow fan assembly that is mechanically coupled to a drive shaft and operable to rotate with the drive shaft about a longitudinal axis. The cross-flow fan assembly includes first and second driver plates having a plurality of blades rotatably mounted therebetween. The blades are disposed radially outwardly from the longitudinal axis and have a generally circular path of travel when the cross-flow fan assembly rotates about the longitudinal axis. The blades are moveable between a plurality of pitch angle configurations. A control assembly is coupled to the blades. The control assembly is operable to change the pitch angle configuration of the blades to generate variable thrust at a substantially constant rotational speed of the cross-flow fan assembly.
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公开(公告)号：US09399513B2
公开(公告)日：2016-07-26
申请号：US13673475
申请日：2012-11-09
Applicant: Bell Helicopter Textron Inc.
Inventor： Drew A. Sutton , Christopher Foskey , Dudley Smith , Frank B. Stamps
Abstract: According to one embodiment, a constant velocity (CV) joint includes a first yoke, a second yoke, and a control mechanism. The first yoke is configured to be rotatably coupled to an input device about a first axis and configured to receive the input device through a first opening. The second yoke is rotatably coupled to the first yoke about a second axis and rotatably coupled to an output device about a third axis. The control mechanism is adapted to constrain the first yoke and the second yoke so as to achieve a substantially CV characteristic between the input device and the output device.
Abstract translation: 根据一个实施例，等速（CV）接头包括第一磁轭，第二磁轭和控制机构。 第一磁轭被配置成围绕第一轴线可旋转地联接到输入装置，并且被配置成通过第一开口接收输入装置。 第二轭被围绕第二轴可旋转地联接到第一轭，并且围绕第三轴可旋转地联接到输出装置。 控制机构适于约束第一磁轭和第二磁轭，以便在输入装置和输出装置之间实现基本的CV特性。
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公开(公告)号：US20180044009A1
公开(公告)日：2018-02-15
申请号：US15233897
申请日：2016-08-10
Applicant: Bell Helicopter Textron Inc.
Inventor： Daniel Bryan Robertson , Dudley Smith , Mark Dreier , Steve Ray Ivans , Kirk Landon Groninga
CPC classification number: B64C27/82 , B64C11/006 , B64C27/06 , B64C39/008 , B64C2027/8245 , B64C2027/8254 , F04D17/04 , F04D29/362 , F05D2220/90
Abstract: In some embodiments, a rotorcraft includes a fuselage, a tailboom, a drive system and a variable thrust cross-flow fan system. The cross-flow fan system includes a cross-flow fan assembly that is mechanically coupled to a drive shaft and operable to rotate with the drive shaft about a longitudinal axis. The cross-flow fan assembly includes first and second driver plates having a plurality of blades rotatably mounted therebetween. The blades are disposed radially outwardly from the longitudinal axis and have a generally circular path of travel when the cross-flow fan assembly rotates about the longitudinal axis. The blades are moveable between a plurality of pitch angle configurations. A control assembly is coupled to the blades. The control assembly is operable to change the pitch angle configuration of the blades to generate variable thrust at a substantially constant rotational speed of the cross-flow fan assembly.
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公开(公告)号：US09067676B1
公开(公告)日：2015-06-30
申请号：US14308943
申请日：2014-06-19
Applicant: Bell Helicopter Textron Inc.
Inventor： J. Donn Hethcock , Mark E. Dreier , Dudley Smith , Robert Lee Robinson
IPC: B64C27/82
CPC classification number: B64C27/82 , B64C11/001 , B64C2027/8254 , B64C2027/8263
Abstract: A convertible helicopter ring member includes a ring member and a drive mechanism. The drive mechanism orients the ring member substantially in-plane with a tail rotor of a helicopter during a first mode of helicopter operation and orients the ring member substantially off-plane with the tail rotor of the helicopter during a second mode of helicopter operation that is different from the first mode.
Abstract translation: 可转式直升机环构件包括环构件和驱动机构。 驱动机构在直升机操作的第一模式期间使环形构件基本上与直升机的尾部转子基本平行，并且在直升机操作的第二模式期间将环构件与直升机的尾部转子基本上与飞行器的尾部飞行平面对准， 不同于第一种模式。
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公开(公告)号：US20140133979A1
公开(公告)日：2014-05-15
申请号：US13673475
申请日：2012-11-09
Applicant: Bell Helicopter Textron Inc.
Inventor： Drew A. Sutton , Christopher Foskey , Dudley Smith , Frank B. Stamps
Abstract: According to one embodiment, a constant velocity (CV) joint includes a first yoke, a second yoke, and a control mechanism. The first yoke is configured to be rotatably coupled to an input device about a first axis and configured to receive the input device through a first opening. The second yoke is rotatably coupled to the first yoke about a second axis and rotatably coupled to an output device about a third axis. The control mechanism is adapted to constrain the first yoke and the second yoke so as to achieve a substantially CV characteristic between the input device and the output device.
Abstract translation: 根据一个实施例，等速（CV）接头包括第一磁轭，第二磁轭和控制机构。 第一磁轭被配置成围绕第一轴线可旋转地联接到输入装置，并且被配置成通过第一开口接收输入装置。 第二轭被围绕第二轴可旋转地联接到第一轭，并且围绕第三轴可旋转地联接到输出装置。 控制机构适于约束第一磁轭和第二磁轭，以便在输入装置和输出装置之间实现基本的CV特性。
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