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公开(公告)号:US20240336341A1
公开(公告)日:2024-10-10
申请号:US18739753
申请日:2024-06-11
Applicant: Sharrow Engineering LLC
Inventor: Gregory Charles Sharrow
IPC: B63H1/26 , B64C11/00 , B64C11/16 , B64C11/18 , B64C11/20 , F01D5/14 , F04D17/02 , F04D29/28 , F04D29/38
CPC classification number: B63H1/265 , B64C11/00 , B64C11/005 , B64C11/16 , B64C11/18 , B64C11/20 , F01D5/141 , F04D29/384 , F04D17/025 , F04D29/281 , F05B2210/16 , F05B2250/24 , F05B2250/25 , F05B2250/26
Abstract: A propeller having a plurality of blades extending radially outward from a hub, the blades forming a loop. Each loop can have an intake portion, an exhaust portion and a tip portion extending radially outward from the hub and a gap between the intake root and the exhaust root.
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公开(公告)号:US12030606B2
公开(公告)日:2024-07-09
申请号:US18194994
申请日:2023-04-03
Applicant: Sharrow Engineering LLC
Inventor: Gregory Charles Sharrow
IPC: B63H1/26 , B64C11/00 , B64C11/16 , B64C11/18 , B64C11/20 , F01D5/14 , F03D1/06 , F04D29/38 , F04D17/02 , F04D29/28
CPC classification number: B63H1/265 , B64C11/00 , B64C11/005 , B64C11/16 , B64C11/18 , B64C11/20 , F01D5/141 , F03D1/0625 , F04D29/384 , F04D17/025 , F04D29/281 , F05B2210/16 , F05B2250/24 , F05B2250/25 , F05B2250/26
Abstract: A propeller having a plurality of blades extending radially outward from a hub, the blades forming a loop. Each loop having an intake portion, an exhaust portion and a tip portion extending radially outward from the hub and a gap between the intake root and the exhaust root. The tip portion of each of the blades is 30%-75% of the blade, the tip portion beginning at a first deviation from zero of the roll value and extending to 90 degrees, wherein roll value is zero in a plane parallel to the hub axis, and wherein the blades have a vertical angle between −45 degrees and 45 degrees throughout.
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公开(公告)号:US20240109663A1
公开(公告)日:2024-04-04
申请号:US18274809
申请日:2022-02-14
Applicant: UBIQ Aerospace AS
Inventor: Shibarchi Majumder , Kim Sørensen
Abstract: A propulsion system for a propeller of an aircraft is described, wherein the propulsion system allows for transmission of electrical power such as for a deicing system for the propeller. The propulsion system comprises a rotatable shaft for transmission of mechanical power; aircraft end electrical connections at an aircraft end of the shaft for connection to first and second terminals of a source of electrical power; propeller end electrical connections at a propeller end of the shaft and being for connection to first and second terminals for supplying electrical power to electrical components on the propeller; and a mechanical coupling at the propeller end of the shaft for mounting the propeller to the shaft. The shaft comprises: an inner conductor extending along the length of the shaft; an outer conductor extending along the length of the shaft; and an electrical insulator extending along the shaft in between the inner and outer conductor.
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公开(公告)号:US20240059396A1
公开(公告)日:2024-02-22
申请号:US18260967
申请日:2022-01-07
Applicant: SAFRAN AIRCRAFT ENGINES
Inventor: Fernando GEA AGUILERA , Adrien Clément Marcel DUBOIS , Jean-Michel Daniel Paul BOITEUX , Ludovic Mathieu René WIART
IPC: B64C11/00
CPC classification number: B64C11/00 , B64C2230/14
Abstract: Propulsion assembly for an aircraft comprising a turbomachine having at least one rotating part rotating about an axis of rotation, an attachment strut, and a structural element carrying the turbomachine via the attachment strut, the rotating part being disposed upstream of the structural element and of the attachment strut such that an air jet emerging from the rotating part, in the wake of thereof, impacts the structural element and the attachment strut, a leading edge of the structural element and/or of said attachment strut locally comprising at least one acoustic attenuation device disposed at least partly in the wake of the rotating part, the acoustic attenuation device being a local modification of the structure and/or of the profile of the leading edge.
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公开(公告)号:US11851170B2
公开(公告)日:2023-12-26
申请号:US17002466
申请日:2020-08-25
Applicant: Intel Corporation
Inventor: Fabian Oberndorfer
CPC classification number: B64C27/006 , B64C11/205 , B64C39/024 , B64C11/00 , B64U10/00 , B64U30/20
Abstract: Disclosed is a drone rotor cage. The drone rotor cage may include a motor housing, a plurality of spars, and a plurality of ribs. The plurality of spars may extend from the motor housing. Each of the plurality of spars may have a spar height and a spar thickness. The spar height may be greater than the spar thickness. Each of the ribs may extend from a respective one of the plurality of spars. Each of the plurality of ribs may have a rib height and a rib thickness. The rib height may be greater than the rib thickness. The plurality of spars and the plurality of ribs may define a space sized to allow a rotor to spin freely when the rotor cage is attached to a drone.
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公开(公告)号:US20180269587A1
公开(公告)日:2018-09-20
申请号:US15463167
申请日:2017-03-20
Applicant: Lockheed Martin Corporation
Inventor: Mike I. Jones
CPC classification number: H01Q15/14 , B64C1/36 , B64C11/00 , B64C11/20 , B64C39/024 , B64C2201/162 , H01Q1/28 , H01Q1/44 , H01Q15/165
Abstract: In one embodiment, a system includes an aircraft body and a propeller coupled to the aircraft body. The propeller includes a plurality of blades forming a rearward-facing curvature with respect to an axis running longitudinally with the aircraft body. The system further includes a surface coupled to a first blade of the propeller that is operable to reflect radio frequency (RF) waves.
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公开(公告)号:US09945301B2
公开(公告)日:2018-04-17
申请号:US15434085
申请日:2017-02-16
Applicant: GE AVIATION SYSTEMS LLC
Inventor: Christopher Roy Carrington
Abstract: A method and system are provided for coordinating a propeller with a controller module including a machine having a controller module and a propeller mounted to a propeller shaft at a hub. The shaft is arranged to be received in the machine, and a sensor is mounted to the machine, connected to the electronic controller module, and configured to sense the propeller when the propeller shaft is received in the machine.
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公开(公告)号:US09926058B2
公开(公告)日:2018-03-27
申请号:US15605764
申请日:2017-05-25
Applicant: Sharrow Engineering LLC
Inventor: Gregory Charles Sharrow
IPC: B63H1/26 , B64C11/18 , F04D29/38 , B64C11/00 , B64C11/16 , F01D5/14 , F02K3/06 , F03D1/06 , F04D17/02
CPC classification number: B63H1/265 , B64C11/00 , B64C11/005 , B64C11/16 , B64C11/18 , F01D5/141 , F02K3/06 , F03D1/0625 , F04D17/025 , F04D29/384 , F05B2210/16 , F05B2250/24 , F05B2250/25 , F05B2250/26 , Y02E10/721 , Y02T50/673 , Y10T29/49332
Abstract: A propeller having a means for creating fluid flow in a non-axial direction and redirecting it in an axial direction.
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公开(公告)号:US20180057159A1
公开(公告)日:2018-03-01
申请号:US15252545
申请日:2016-08-31
Applicant: Bell Helicopter Textron Inc.
Inventor: Steven Ray Ivans , Nathan Gabriel Wu
CPC classification number: B64C29/0033 , B64C3/38 , B64C5/08 , B64C7/02 , B64C11/00 , B64C27/28 , B64C29/02
Abstract: A pylon assembly for a tiltrotor aircraft includes a fixed pylon having an outboard end. A rotor assembly is rotatably coupled to the fixed pylon and is operable to rotate between a generally vertical orientation in a vertical takeoff and landing mode and a generally horizontal orientation in a forward flight mode. The rotor assembly includes a proprotor operable to produce a generally vertical slipstream in the vertical takeoff and landing mode and a generally horizontal slipstream in the forward flight mode. A wing extension is rotatably coupled to the outboard end of the fixed pylon. The wing extension is operable to rotate generally with the rotor assembly such that a minimal dimension of the wing extension remains in the slipstream of the proprotor.
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公开(公告)号:US20180017209A1
公开(公告)日:2018-01-18
申请号:US15209215
申请日:2016-07-13
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor: Reza PEDRAMI , James Robert JARVO , Benjamin RENAUD
CPC classification number: F16N29/02 , B63H3/08 , B64C11/00 , B64C11/303 , B64C11/40 , F16N2210/08 , F16N2230/00 , F16N2250/04 , F16N2250/08 , F16N2270/20 , G01F15/003
Abstract: There is described herein methods and system for correcting steady state errors in propeller speed by calculating a leakage flow rate as a function of engine and propeller parameters.
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