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公开(公告)号：US11077957B2
公开(公告)日：2021-08-03
申请号：US15878075
申请日：2018-01-23
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons , David Haynes , David L. Miller , Bradley Robert Henson
Abstract: An air intake system (AIS) has a plenum and an inlet barrier filter associated with the plenum, through which air can selectively enter the plenum. The AIS also has an inlet duct associated with the plenum, through which air can selectively enter the plenum. The AIS also has a bypass door associated with the inlet duct, the bypass door being configured to selectively change an amount of air allowed to pass through the inlet duct. The AIS also has a filter airflow change device configured to change an amount of airflow allowed through the inlet barrier filter.
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公开(公告)号：US20200017229A1
公开(公告)日：2020-01-16
申请号：US16035340
申请日：2018-07-13
Applicant: Bell Helicopter Textron Inc.
Inventor： Alan Hisashi Steinert , Thomas Dewey Parsons , Troy Cyril Schank
Abstract: Systems and methods include providing an aircraft with a fuselage and a convertible engine disposed within the fuselage. The convertible engine is operable as a turbofan engine in a thrust mode and a turboshaft engine in a shaft power mode. The convertible engine includes a housing, an engine core having a low pressure turbine shaft, and a bypass fan system. The bypass fan system includes a bypass fan having a fan clutch. The fan clutch selectively couples at least a portion of the bypass fan to the low pressure turbine shaft when the convertible engine is operated in the thrust mode and decouples at least a portion of the bypass fan from the low pressure turbine shaft when the convertible engine is operated in the shaft power mode.
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公开(公告)号：US10377479B2
公开(公告)日：2019-08-13
申请号：US15172811
申请日：2016-06-03
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons , Carlos Alexander Fenny , Erik John Oltheten
Abstract: The present invention includes an anti-torque assembly for a helicopter comprising a plurality of fixed blade pitch motors mounted on one or more pivots on the tail boom of the helicopter, wherein the plurality of fixed blade pitch motors on the one or more pivots are adapted to be oriented substantially in-plane with a tail boom of a helicopter during a first mode of operation that comprises a hover mode and wherein the fixed blade pitch motors are adapted to be oriented substantially off-plane from the tail boom of the helicopter during a second mode of helicopter operation that is different from the first mode.
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公开(公告)号：US10787253B2
公开(公告)日：2020-09-29
申请号：US16183035
申请日：2018-11-07
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons , Carlos Alexander Fenny , Erik John Oltheten
IPC: B64C27/82
Abstract: The present invention includes an anti-torque assembly for a helicopter comprising a plurality of fixed blade pitch motors mounted on one or more pivots on the tail boom of the helicopter, wherein the plurality of fixed blade pitch motors on the one or more pivots are adapted to be oriented substantially in-plane with a tail boom of a helicopter during a first mode of operation that comprises a hover mode and wherein the fixed blade pitch motors are adapted to be oriented substantially off-plane from the tail boom of the helicopter during a second mode of helicopter operation that is different from the first mode.
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公开(公告)号：US10703471B2
公开(公告)日：2020-07-07
申请号：US15458525
申请日：2017-03-14
Applicant: Bell Helicopter Textron Inc.
Inventor： Carlos Fenny , Thomas Dewey Parsons , Erik John Oltheten
Abstract: The present invention includes an a plurality of first variable speed motors arranged in a first matrix pattern and mounted on a tail boom of the helicopter; one or more fixed pitch blades attached to each of the plurality of first variable speed motors; and wherein a speed of one or more of the plurality of first variable speed motors is varied to provide an anti-torque thrust.
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Patent Agency Ranking
公开(公告)号：US20200047911A1
公开(公告)日：2020-02-13
申请号：US16059655
申请日：2018-08-09
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons
Abstract: Embodiments are directed to systems and methods for managing electrical load in an aircraft comprising a generator coupled to an aircraft engine, and a power distribution controller configured to monitor current engine operating parameters and to reduce an electrical load on the generator when the engine operating parameters reach a limit during specified aircraft operating conditions. The system may further comprise a non-essential electrical bus coupled to the generator, wherein the electrical load on the generator is reduced by disconnecting the non-essential bus from the generator. The generator may be coupled to the aircraft engine via an accessory gearbox or a transmission gearbox. The monitored current engine operating parameters comprise one or more of an engine torque, a gas generator RPM, and a temperature. The aircraft operating conditions may comprise one or more of a takeoff, a landing, or an engine failure.
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公开(公告)号：US20190390564A1
公开(公告)日：2019-12-26
申请号：US16015599
申请日：2018-06-22
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons
Abstract: A differential pressure transducer provides measurements for determining the restriction, updated in real time, of an inlet barrier filter for a turboshaft engine of an aircraft. The percentage of restriction of the air inlet barrier filter, which corresponds to the condition of the air inlet barrier filter, is determined as a function of mass air flow into the engine during operation. The restriction percentage is indicated on the instrument panel of the rotorcraft.
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公开(公告)号：US20180208323A1
公开(公告)日：2018-07-26
申请号：US15878075
申请日：2018-01-23
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons , David Haynes , David L. Miller , Bradley Robert Henson
IPC: B64D33/02
CPC classification number: B64D33/02 , B64D2033/0246 , F02C7/055 , F05D2220/323 , F05D2220/90 , F05D2260/606
Abstract: An air intake system (AIS) has a plenum and an inlet barrier filter associated with the plenum, through which air can selectively enter the plenum. The AIS also has an inlet duct associated with the plenum, through which air can selectively enter the plenum. The AIS also has a bypass door associated with the inlet duct, the bypass door being configured to selectively change an amount of air allowed to pass through the inlet duct. The AIS also has a filter airflow change device configured to change an amount of airflow allowed through the inlet barrier filter.
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公开(公告)号：US20170349274A1
公开(公告)日：2017-12-07
申请号：US15458525
申请日：2017-03-14
Applicant: Bell Helicopter Textron Inc.
Inventor： Carlos Fenny , Thomas Dewey Parsons , Erik John Oltheten
Abstract: The present invention includes an a plurality of first variable speed motors arranged in a first matrix pattern and mounted on a tail boom of the helicopter; one or more fixed pitch blades attached to each of the plurality of first variable speed motors; and wherein a speed of one or more of the plurality of first variable speed motors is varied to provide an anti-torque thrust.
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公开(公告)号：US20170349273A1
公开(公告)日：2017-12-07
申请号：US15172811
申请日：2016-06-03
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons , Carlos Alexander Fenny , Erik John Oltheten
IPC: B64C27/82
CPC classification number: B64C27/82 , B64C2027/8209 , B64C2027/8227 , B64C2027/8236
Abstract: The present invention includes an anti-torque assembly for a helicopter comprising a plurality of fixed blade pitch motors mounted on one or more pivots on the tail boom of the helicopter, wherein the plurality of fixed blade pitch motors on the one or more pivots are adapted to be oriented substantially in-plane with a tail boom of a helicopter during a first mode of operation that comprises a hover mode and wherein the fixed blade pitch motors are adapted to be oriented substantially off-plane from the tail boom of the helicopter during a second mode of helicopter operation that is different from the first mode.
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