公开(公告)号：US11731772B2

公开(公告)日：2023-08-22

申请号：US15896383

申请日：2018-02-14

Applicant: Bell Helicopter Textron Inc.

Inventor： Carlos Alexander Fenny ,  John Robert Wittmaak, Jr. ,  Mike John Ryan ,  Joseph Scott Drennan

IPC: B64D27/24 ,  B64C29/00 ,  F01D15/10 ,  B64D27/02

CPC classification number: B64D27/24 ,  B64C29/0033 ,  F01D15/10 ,  B64D2027/026 ,  F05D2220/328 ,  F05D2220/76 ,  Y02T50/60

Abstract: The present invention includes a hybrid propulsion system for an aircraft comprising: one or more turboshaft engines that provide shaft power and are capable of providing thrust; at least one of: one or more electrical generators or one or more hydraulic pumps connected to a shaft of the one or more turboshaft engines; and at least two rotatable nacelles, each nacelle housing at least one of: one or more electric motors or one or more hydraulic motors each connected to a proprotor, wherein the electric motor is electrically connected to the electric generator, or the hydraulic motor is connected to the hydraulic pump, respectively, wherein the proprotors provide lift whenever the aircraft is in vertical takeoff and landing and stationary flight, and provide thrust whenever the aircraft is in forward flight.

公开(公告)号：US11548617B2

公开(公告)日：2023-01-10

申请号：US16439055

申请日：2019-06-12

Applicant: Bell Helicopter Textron Inc.

Inventor： Carlos Alexander Fenny ,  Nicholas Brodeur ,  Louis Charron ,  Kevin Morris

IPC: B64C11/06 ,  B64C11/32 ,  B64C27/37 ,  B64C29/00 ,  B64C39/02

Abstract: A method of pitching rotor blades by interrupting torque applied to the hub.

公开(公告)号：US11136115B2

公开(公告)日：2021-10-05

申请号：US16013201

申请日：2018-06-20

Applicant: Bell Helicopter Textron Inc.

Inventor： Carlos Alexander Fenny ,  Jouyoung Jason Choi

IPC: B64C27/08 ,  B64D27/26 ,  G05D1/02 ,  G05D1/08

Abstract: An aircraft comprises a fuselage, one or more support structures connected to the fuselage, one or more engines or motors disposed within or attached to the one or more support structures or the fuselage, and a distributed propulsion system. The distributed propulsion system comprising two or more propellers symmetrically distributed in an array along the one or more support structures with respect to a center of gravity of the aircraft and operably connected to the one or more engines or motors, wherein each propeller has a rotation direction within a tilted plane of rotation, and a summation of horizontal force vectors created by the tilted plane of rotation of all the propellers is substantially zero when all the propellers are creating a substantially equal thrust magnitude. Movement of the aircraft is controlled by selectively increasing or decreasing a thrust of at least one of the two or more propellers.

公开(公告)号：US11022213B2

公开(公告)日：2021-06-01

申请号：US16105116

申请日：2018-08-20

Applicant: Bell Helicopter Textron Inc.

Inventor： Carlos Alexander Fenny ,  Frank Stamps

IPC: F16H61/02 ,  F16H61/12 ,  F16H3/083 ,  F16H3/097 ,  F16H61/00 ,  B64C29/00 ,  B64D35/04 ,  F16H47/02

Abstract: An aircraft includes a variable-speed gearbox. The variable-speed gearbox includes a low-speed gear train and a high-speed gear train, each gear train of which is configured to selectively provide torque from an engine of the aircraft to a proprotor. The variable-speed gearbox also includes a hydraulic system configured to provide torque to the proprotor. The hydraulic system includes a hydraulic pump driven by the engine of the tiltrotor aircraft and a variable-displacement motor driven by a hydraulic fluid from the hydraulic pump.

公开(公告)号：US11014655B2

公开(公告)日：2021-05-25

申请号：US16103083

申请日：2018-08-14

Applicant: Bell Helicopter Textron Inc.

Inventor： Dudley E. Smith ,  Cory M. Hitte ,  Bryan Marshall ,  Carlos Alexander Fenny

IPC: B64C27/12 ,  B64D27/24 ,  B64C27/00 ,  B64D27/02

Abstract: A system and method for providing supplemental power includes: a motor-generator or a hydraulic pump-motor configured to attach to a transmission of an engine, a controller connected to the motor-generator or the hydraulic pump-motor, and a battery system or a hydraulic accumulator coupled to the motor-generator or the hydraulic pump-motor, respectively. During normal operation of the engine, the engine drives the transmission to rotate rotor blades connected to the transmission, and the motor-generator or the hydraulic pump-motor draws an energy from the transmission and store the energy in the battery system or the hydraulic accumulator, respectively. Upon a manual and/or an automatic control by the controller, the battery system or the hydraulic accumulator discharges the energy to the motor-generator or the hydraulic pump-motor, respectively, and the motor-generator or the hydraulic pump-motor provides the supplemental power to drive the transmission to rotate the rotor blades.

公开(公告)号：US10730624B2

公开(公告)日：2020-08-04

申请号：US15593607

申请日：2017-05-12

Applicant: Bell Helicopter Textron Inc.

Inventor： Carlos Alexander Fenny ,  Rohn Lee Olson ,  Andrew James Zahasky

IPC: B64C39/06 ,  B64C27/08 ,  B64C11/28 ,  B64C27/50 ,  B64C29/00 ,  B64C3/10 ,  B64C27/12 ,  B64D27/24 ,  B64D31/00 ,  B64C29/02 ,  B64C1/06 ,  B64C39/02 ,  B64C1/00 ,  B64D27/02

Abstract: An aircraft capable of vertical takeoff and landing and stationary flight includes a distributed airframe coupled to a modular fuselage. The modular fuselage has a longitudinal axis substantially parallel to a rotational axis of three or more propellers. The modular fuselage includes a rear module substantially disposed within a perimeter of the distributed airframe, a front module removably connected to the rear module and substantially aligned with the longitudinal axis. One or more engines or motors are disposed within or attached to the distributed airframe or fuselage. The three or more propellers are proximate to a leading edge of the distributed airframe, distributed along the distributed airframe, and operably connected to the one or more engines or motors to provide lift whenever the aircraft is in vertical takeoff and landing and stationary flight.

公开(公告)号：US20200056696A1

公开(公告)日：2020-02-20

申请号：US16105116

申请日：2018-08-20

Applicant: Bell Helicopter Textron Inc.

Inventor： Carlos Alexander Fenny ,  Frank Stamps

IPC: F16H61/02 ,  F16H61/12 ,  F16H3/083 ,  F16H3/097 ,  F16H47/02 ,  F16H61/00 ,  B64C29/00 ,  B64D35/04

Abstract: An aircraft includes a variable-speed gearbox. The variable-speed gearbox includes a low-speed gear train and a high-speed gear train, each gear train of which is configured to selectively provide torque from an engine of the aircraft to a proprotor. The variable-speed gearbox also includes a hydraulic system configured to provide torque to the proprotor. The hydraulic system includes a hydraulic pump driven by the engine of the tiltrotor aircraft and a variable-displacement motor driven by a hydraulic fluid from the hydraulic pump.

公开(公告)号：US10287012B2

公开(公告)日：2019-05-14

申请号：US15241436

申请日：2016-08-19

Applicant: Bell Helicopter Textron Inc.

Inventor： Daniel Bryan Robertson ,  Kirk Landon Groninga ,  Carlos Alexander Fenny

IPC: B64C25/52 ,  B64C29/02 ,  B64C25/16 ,  B64C9/02 ,  B64C11/00 ,  B64C25/24 ,  B64C13/50

Abstract: A tail sitter aircraft includes a fuselage having a forward portion, an aft portion and a longitudinally extending fuselage axis. A main lifting surface is supported by the forward portion of the fuselage. A propulsion system is operably associated with the main lifting surface and operable to provide thrust during forward flight, vertical takeoff, hover and vertical landing. A tailboom assembly extends from the aft portion of the fuselage. The tailboom assembly includes a plurality of rotatably mounted tail arms having control surfaces and landing members wherein, in a forward flight configuration, the tail arms are radially retracted to reduce tail surface geometry and provide yaw and pitch control with the control surfaces and, wherein, in a landing configuration, the tail arms are radially extended relative to one another about the fuselage axis to form a stable ground contact base with the landing members.

公开(公告)号：USD798795S1

公开(公告)日：2017-10-03

申请号：US29564581

申请日：2016-05-13

Applicant: Bell Helicopter Textron Inc.

Designer： Carlos Alexander Fenny ,  Rohn Lee Olson ,  Andrew James Zahasky

公开(公告)号：US20180251226A1

公开(公告)日：2018-09-06

申请号：US15896383

申请日：2018-02-14

Applicant: Bell Helicopter Textron Inc.

Inventor： Carlos Alexander Fenny ,  John Robert Wittmaak, JR. ,  Mike John Ryan ,  Joseph Scott Drennan

IPC: B64D27/24 ,  B64C29/00 ,  B64D29/00

CPC classification number: B64D27/24 ,  B64C27/28 ,  B64C29/0033 ,  B64D29/00 ,  B64D2027/005 ,  B64D2027/026 ,  F01D15/10 ,  F05D2220/328 ,  F05D2220/76 ,  Y02T50/671

Abstract: The present invention includes a hybrid propulsion system for an aircraft comprising: one or more turboshaft engines that provide shaft power and are capable of providing thrust; at least one of: one or more electrical generators or one or more hydraulic pumps connected to a shaft of the one or more turboshaft engines; and at least two rotatable nacelles, each nacelle housing at least one of: one or more electric motors or one or more hydraulic motors each connected to a proprotor, wherein the electric motor is electrically connected to the electric generator, or the hydraulic motor is connected to the hydraulic pump, respectively, wherein the proprotors provide lift whenever the aircraft is in vertical takeoff and landing and stationary flight, and provide thrust whenever the aircraft is in forward flight.