GB2581704A - Rotor or propeller blade with dynamically optimizable within each revolution shape and other properties - Google Patents

Rotor or propeller blade with dynamically optimizable within each revolution shape and other properties Download PDF

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Publication number
GB2581704A
GB2581704A GB2006670.0A GB202006670A GB2581704A GB 2581704 A GB2581704 A GB 2581704A GB 202006670 A GB202006670 A GB 202006670A GB 2581704 A GB2581704 A GB 2581704A
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GB
United Kingdom
Prior art keywords
blade
varying
revolution
dynamically
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB2006670.0A
Other versions
GB2581704B (en
GB202006670D0 (en
Inventor
BOGRASH Philip
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB202006670D0 publication Critical patent/GB202006670D0/en
Publication of GB2581704A publication Critical patent/GB2581704A/en
Application granted granted Critical
Publication of GB2581704B publication Critical patent/GB2581704B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/006—Paddle wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/20—Constructional features

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Coating Apparatus (AREA)
  • Wind Motors (AREA)
  • Toys (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

A blade is provided for the cycloidal marine propellers or cycloidal aerial rotors which is given the capabilities, in response to control system commands, to dynamically and in real time flex itself along its chord in any required way, vary its relative pivot point position, change its form by extending or retracting a trailing edge extension, tum the flap along the trailing edge in either direction, or allow the blade to be turned by airflow, the blade optionally provided with one or more elastic trailing edges whose stiffness is dynamically, and possibly differentially along the blade span, variable by the control system, the leading and trailing edges being selectively flexible or rigid, the blade provided with the capability of varying its cross-sectional profile thickness, and the blade including flow permeability along its surface, the control system continually optimally adjust the blade in response to its operating environment as the blade travels along its trajectory within each revolution.

Claims (19)

Claims.
1. A blade for a rotor or propeller comprising structural elements for providing it with cross-sectional flexing within one revolution capability.
2. The blade of Claim 1 wherein said structural elements comprise interconnected to each other segments, provided with the actuatingcomponents to position said segments in accordance with the commands from the control system to dynamically form a blade's surface shape that is currently required .
3. The blade of Claim 1 wherein said structural elements comprise an elastic core upon which act the actuatingcomponents .
4. The blade of Claim 1 further provided with the actuatingcomponents operatively connected to blade supporting carriage for dynamically varying said blade's pivot point location along its chord.
5. The blade of Claim 1 further provided with an actuated extension flap, making said blade's overall length dynamically variable.
6. The blade of Claim 5 provided with separate actuating components to enable extending said extension flap ends differentially.
7. The blade of Claim 1 provided with a turnable flap mounted on said blade's rear edge.
8. Theblade of Claim 1 provided with at least one flexible edge, whereas said edge's has structural members whose stiffness is dynamically variable by the control system in real time.
9. The blade of Claim 1 provided with a flexible cover on at least one of its surfaces and the actuating components underneath said flexible cover for varying said flexible cover's shape.
10. The blade of Claim 1 provided with orifices covering a portion of its surface area, wherein said orifices feature covers comprising turnable strips with mechanisms for turning said strips in real time thereby providing cross-blade flow control.
11. A blade of fixed shape for a cycloidal rotor or propeller provided with structural features for varying within a revolutionits fluid-dynamic properties.
12. The blade of Claim 11 wherein said said structural features for varying within a revolution its fluid-dynamic properties are actuatingcomponents for varying said blade's pivot point position along its chord.
13. The blade of Claim 11 wherein said structural features for varying within a revolution its fluid-dynamic propertiesis an actuated extension flap making said blade's overall length dynamically variable
14. The blade of Claim 13 provided with separate actuators to enable extending said extension flap ends differentially .
15. The blade of Claim 11 wherein said structural features for varying within a revolution its fluid- dynamic properties isa turnable flap mounted on said blade's rear edge.
16. The blade of Claim 11 wherein said structural features for varying within a revolution its fluid-dynamic properties is at least one flexible edge.
17. The blade of Claim 16 wherein said edge comprises structural members whose stiffness is dynamically variablein real time
18. The blade of Claim 11 wherein said structural features for varying within a revolution its fluid-dynamic properties is a flexible cover on at least one of its surfaces and the actuation means underneath said flexible cover for varying said flexible cover's shape, thereby varying the blade's surface shape .
19. The blade of Claim 11 wherein said structural features for varying within a revolution its fluid- dynamic properties are orifices covering substantial portion of its surface area, wherein said orifices feature covers comprising turnable strips with mechanisms for turning said strips in said covers in real time thereby providing through-blade flow control.
GB2006670.0A 2017-11-06 2017-11-06 Rotor or propeller blade with dynamically optimizable within each revolution shape and other properties Expired - Fee Related GB2581704B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IL2017/051209 WO2019087175A1 (en) 2017-11-06 2017-11-06 Rotor or propeller blade with dynamically optimizable within each revolution shape and other properties

Publications (3)

Publication Number Publication Date
GB202006670D0 GB202006670D0 (en) 2020-06-17
GB2581704A true GB2581704A (en) 2020-08-26
GB2581704B GB2581704B (en) 2022-10-12

Family

ID=66332997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2006670.0A Expired - Fee Related GB2581704B (en) 2017-11-06 2017-11-06 Rotor or propeller blade with dynamically optimizable within each revolution shape and other properties

Country Status (4)

Country Link
CN (1) CN111315653A (en)
DE (1) DE112017008056T5 (en)
GB (1) GB2581704B (en)
WO (1) WO2019087175A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110274750B (en) * 2019-07-25 2020-10-30 哈尔滨工业大学 Supercavitation navigation body test model with elastic tail edge
CN112407211A (en) * 2020-09-18 2021-02-26 桂林电子科技大学 Golden-edge-like dragon louse swimming foot underwater propulsion device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080240923A1 (en) * 2007-03-27 2008-10-02 Laurent Bonnet Rotor blade for a wind turbine having a variable dimension
US7802968B2 (en) * 2005-07-29 2010-09-28 General Electric Company Methods and apparatus for reducing load in a rotor blade
US20100259046A1 (en) * 2007-11-06 2010-10-14 Sridhar Kota Active control surfaces for wind turbine blades
US20110223022A1 (en) * 2011-01-28 2011-09-15 General Electric Company Actuatable surface features for wind turbine rotor blades
WO2011161442A2 (en) * 2010-06-22 2011-12-29 Vestas Wind Systems A/S A wind turbine blade de-icing system based on shell distortion
US8087889B2 (en) * 2007-06-22 2012-01-03 Gamesa Innovation & Technology, S.L. Wind turbine blade with deflectable flaps
US8540485B2 (en) * 2008-03-04 2013-09-24 Philip Bogrash Cycloidal rotor with non-circular blade orbit
US9086054B2 (en) * 2009-09-09 2015-07-21 Vestas Wind Systems, A/S Wind turbine rotor blade
US20160273517A1 (en) * 2013-10-24 2016-09-22 Alstom Renewable Technologies Wind turbine blade
US20170320562A1 (en) * 2016-05-07 2017-11-09 Philip Bogrash Rotor or propeller blade with dynamically variable geometry and other properties

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8540A (en) 1851-11-25 Improvement in fastenings for garments
US485A (en) 1837-11-25 John stevens
CA2518080C (en) * 2003-03-03 2014-02-25 Flexsys, Inc. Adaptive compliant wing and rotor system
DE102005061751B4 (en) * 2005-12-21 2013-09-19 Eurocopter Deutschland Gmbh Rotor blade for a rotary wing aircraft
DE102007030095B4 (en) * 2007-06-28 2012-12-20 Eurocopter Deutschland Gmbh Rotor blade for a rotary wing aircraft
RU2374137C1 (en) * 2008-04-01 2009-11-27 Государственное образовательное учреждение высшего профессионального образования "Воронежский государственный технический университет" Helicopter rotor, rotor blade
GB2469854A (en) * 2009-04-30 2010-11-03 Vestas Wind Sys As Wind turbine rotor blade
GB201409424D0 (en) * 2014-05-28 2014-07-09 Agustawestland Ltd Device which is subject to fluid flow
GB201615399D0 (en) * 2016-09-09 2016-10-26 Univ Brunel Blade or wing

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7802968B2 (en) * 2005-07-29 2010-09-28 General Electric Company Methods and apparatus for reducing load in a rotor blade
US20080240923A1 (en) * 2007-03-27 2008-10-02 Laurent Bonnet Rotor blade for a wind turbine having a variable dimension
US8087889B2 (en) * 2007-06-22 2012-01-03 Gamesa Innovation & Technology, S.L. Wind turbine blade with deflectable flaps
US20100259046A1 (en) * 2007-11-06 2010-10-14 Sridhar Kota Active control surfaces for wind turbine blades
US8540485B2 (en) * 2008-03-04 2013-09-24 Philip Bogrash Cycloidal rotor with non-circular blade orbit
US9086054B2 (en) * 2009-09-09 2015-07-21 Vestas Wind Systems, A/S Wind turbine rotor blade
WO2011161442A2 (en) * 2010-06-22 2011-12-29 Vestas Wind Systems A/S A wind turbine blade de-icing system based on shell distortion
US20110223022A1 (en) * 2011-01-28 2011-09-15 General Electric Company Actuatable surface features for wind turbine rotor blades
US20160273517A1 (en) * 2013-10-24 2016-09-22 Alstom Renewable Technologies Wind turbine blade
US20170320562A1 (en) * 2016-05-07 2017-11-09 Philip Bogrash Rotor or propeller blade with dynamically variable geometry and other properties

Also Published As

Publication number Publication date
RU2020115567A (en) 2021-12-08
DE112017008056T5 (en) 2020-07-02
CN111315653A (en) 2020-06-19
WO2019087175A1 (en) 2019-05-09
GB2581704B (en) 2022-10-12
RU2020115567A3 (en) 2021-12-08
GB202006670D0 (en) 2020-06-17

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20200924 AND 20200930

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20230112