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公开(公告)号：US20220219826A1
公开(公告)日：2022-07-14
申请号：US17148273
申请日：2021-01-13
申请人： Bell Textron Inc.
摘要： 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.
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公开(公告)号：US11975826B2
公开(公告)日：2024-05-07
申请号：US17163785
申请日：2021-02-01
申请人： Bell Textron Inc.
CPC分类号： B64C27/28 , B64C29/0033
摘要： A rotor system for an aircraft includes an open rotor assembly comprising an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast, wherein the rotor assembly is tiltable relative to a wing of the aircraft between a first position corresponding to an airplane mode of the aircraft and a second position corresponding to a helicopter mode of the aircraft; 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 generating rotational energy to a motor shaft; and a gearbox connected to receive rotational energy from the at least one electric motor via the motor shaft and to provide rotational energy to the rotor mast via a rotor shaft, wherein the at least one electric motor is fixed relative to the wing of the aircraft.
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公开(公告)号：US20220219816A1
公开(公告)日：2022-07-14
申请号：US17146123
申请日：2021-01-11
申请人： Bell Textron Inc.
摘要： There is disclosed in one example a mast assembly for a rotary aircraft, including a single piece mast and carrier, and having a first mechanical interface to mechanically couple to a drive train of the rotary aircraft, and a second mechanical interface to mechanically couple to a rotor assembly.
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公开(公告)号：US11772804B2
公开(公告)日：2023-10-03
申请号：US17148273
申请日：2021-01-13
申请人： Bell Textron Inc.
CPC分类号： B64D27/24 , B64C29/0033 , B64D35/08
摘要： 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.
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公开(公告)号：US11459088B2
公开(公告)日：2022-10-04
申请号：US16590322
申请日：2019-10-01
申请人： Bell Textron Inc.
摘要： A rotor assembly configured to increase the stiffness of a rotor mast. The rotor assembly includes the rotor mast, a rotor hub, a mast nut, a mast bearing, and a cuff disposed between the mast nut and the mast bearing. The cuff is captured and compressed between the mast nut and the inner race of the mast bearing along an uninterrupted load path that extends between the mast nut and the mast bearing.
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公开(公告)号：US11814163B2
公开(公告)日：2023-11-14
申请号：US17148307
申请日：2021-01-13
申请人： Bell Textron Inc.
IPC分类号： B64C29/00 , B64D27/24 , B64D29/02 , B64D35/02 , B64D35/04 , H02K7/108 , F16D41/00 , H02K7/116
CPC分类号： B64C29/0033 , B64D27/24 , B64D29/02 , B64D35/02 , B64D35/04 , H02K7/108 , H02K7/116 , F16D41/00
摘要： A rotor system for an aircraft includes an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast via a yoke, wherein the rotor assembly is tiltable between a first position corresponding to an airplane mode and a second position corresponding to a helicopter mode; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast, the drive system comprising at least one electric motor for providing rotational energy to a drive shaft and a gearbox connected to the drive shaft for receiving rotational energy from the at least one electric motor via the drive shaft and providing rotational energy to the rotor mast via a rotor shaft; wherein the drive system is rotatable relative to the wing about a tilt axis and the rotor shaft is coaxial with the drive shaft.
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公开(公告)号：US20220242557A1
公开(公告)日：2022-08-04
申请号：US17163785
申请日：2021-02-01
申请人： Bell Textron Inc.
摘要： A rotor system for an aircraft includes an open rotor assembly comprising an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast, wherein the rotor assembly is tiltable relative to a wing of the aircraft between a first position corresponding to an airplane mode of the aircraft and a second position corresponding to a helicopter mode of the aircraft; 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 generating rotational energy to a motor shaft; and a gearbox connected to receive rotational energy from the at least one electric motor via the motor shaft and to provide rotational energy to the rotor mast via a rotor shaft, wherein the at least one electric motor is fixed relative to the wing of the aircraft.
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公开(公告)号：US20220219817A1
公开(公告)日：2022-07-14
申请号：US17148307
申请日：2021-01-13
申请人： Bell Textron Inc.
摘要： A rotor system for an aircraft includes an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast via a yoke, wherein the rotor assembly is tiltable between a first position corresponding to an airplane mode and a second position corresponding to a helicopter mode; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast, the drive system comprising at least one electric motor for providing rotational energy to a drive shaft and a gearbox connected to the drive shaft for receiving rotational energy from the at least one electric motor via the drive shaft and providing rotational energy to the rotor mast via a rotor shaft; wherein the drive system is rotatable relative to the wing about a tilt axis and the rotor shaft is coaxial with the drive shaft.
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公开(公告)号：US12092107B2
公开(公告)日：2024-09-17
申请号：US17168057
申请日：2021-02-04
申请人： Bell Textron Inc.
CPC分类号： F04C2/102 , F01M1/02 , B64C29/0033 , F01M2001/0238 , F01M2001/0284
摘要： A pump assembly, comprising a pump and housing having an inlet passage and an outlet passage. The pump includes inlet and outlet ports and opposing first and second drive inputs configured to be rotated together in a pumping direction to operate the pump. The pump can be installed in the housing in a first orientation, in which the first drive input is configured for being rotated by a drive source in a first external direction to operate the pump, and a second orientation, in which the second drive input is configured for being rotated by the drive source in a second external direction opposite of the first external direction to operate the pump. In both the first orientation and the second orientation, the inlet port is in fluid communication with the inlet passage and the outlet port is in fluid communication with the outlet passage.
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公开(公告)号：US20220243726A1
公开(公告)日：2022-08-04
申请号：US17168057
申请日：2021-02-04
申请人： Bell Textron Inc.
摘要： A pump assembly, comprising a pump and housing having an inlet passage and an outlet passage. The pump includes inlet and outlet ports and opposing first and second drive inputs configured to be rotated together in a pumping direction to operate the pump. The pump can be installed in the housing in a first orientation, in which the first drive input is configured for being rotated by a drive source in a first external direction to operate the pump, and a second orientation, in which the second drive input is configured for being rotated by the drive source in a second external direction opposite of the first external direction to operate the pump. In both the first orientation and the second orientation, the inlet port is in fluid communication with the inlet passage and the outlet port is in fluid communication with the outlet passage.
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