FR2173631A1 - - Google Patents
Info
- Publication number
- FR2173631A1 FR2173631A1 FR7033945A FR7033945A FR2173631A1 FR 2173631 A1 FR2173631 A1 FR 2173631A1 FR 7033945 A FR7033945 A FR 7033945A FR 7033945 A FR7033945 A FR 7033945A FR 2173631 A1 FR2173631 A1 FR 2173631A1
- Authority
- FR
- France
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
-
- 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
- B64C11/003—Variable-diameter propellers; Mechanisms therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/202—Rotors with adjustable area of intercepted fluid
- F05B2240/2021—Rotors with adjustable area of intercepted fluid by means of telescoping blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
- F05B2240/313—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape with adjustable flow intercepting area
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85909469A | 1969-09-18 | 1969-09-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2173631A1 true FR2173631A1 (en) | 1973-10-12 |
FR2173631B1 FR2173631B1 (en) | 1975-09-26 |
Family
ID=25330014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7033945A Expired FR2173631B1 (en) | 1969-09-18 | 1970-09-18 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3768923A (en) |
CA (1) | CA940513A (en) |
DE (1) | DE2045637C3 (en) |
FR (1) | FR2173631B1 (en) |
GB (1) | GB1332658A (en) |
IT (1) | IT954097B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2552395A1 (en) * | 1983-09-26 | 1985-03-29 | Banolas De Ayala Maria Pilar | IMPROVEMENTS ON LIFT PROPELLERS FOR AIRCRAFT |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3884594A (en) * | 1973-12-26 | 1975-05-20 | United Aircraft Corp | Variable length blade |
US4007997A (en) * | 1975-11-05 | 1977-02-15 | United Technologies Corporation | Rotor diameter indicator |
US4074952A (en) * | 1976-06-28 | 1978-02-21 | United Technologies Corporation | Locking control and overtravel safety stop system for variable length rotor blades |
US4080097A (en) * | 1976-06-28 | 1978-03-21 | United Technologies Corporation | Locking control and overtravel safety stop system for variable length rotor blades |
NL9200786A (en) * | 1992-04-29 | 1993-11-16 | Pieter Arie Jan Eikelenboom | WIKE CONSTRUCTION FOR WINDMILL. |
US5253979A (en) * | 1992-06-01 | 1993-10-19 | United Technologies Corporation | Variable diameter rotor having an offset twist |
US5299912A (en) * | 1992-07-28 | 1994-04-05 | United Technologies Corporation | Drive system for changing the diameter of a variable diameter rotor |
US5655879A (en) * | 1995-03-28 | 1997-08-12 | Sikorsky Aircraft Corporation | Mounting arrangement for variable diameter rotor blade assemblies |
US5636969A (en) * | 1995-03-28 | 1997-06-10 | Sikorsky Aircraft Corporation | Torque tube/spar assembly for variable diameter helicopter rotors |
US5620303A (en) * | 1995-12-11 | 1997-04-15 | Sikorsky Aircraft Corporation | Rotor system having alternating length rotor blades for reducing blade-vortex interaction (BVI) noise |
US5735670A (en) * | 1995-12-11 | 1998-04-07 | Sikorsky Aircraft Corporation | Rotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction (BVI) noise |
US5642982A (en) * | 1995-12-11 | 1997-07-01 | Sikorsky Aircraft Corporation | Retraction/extension mechanism for variable diameter rotors |
US5620304A (en) * | 1995-12-11 | 1997-04-15 | Sikorsky Aircraft Corporation | Rotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction (BVI) noise |
US6019578A (en) | 1998-12-18 | 2000-02-01 | Sikorsky Aircraft Corporation | Variable diameter rotor blade actuation system |
US6030177A (en) | 1998-12-18 | 2000-02-29 | Sikorsky Aircraft Corporation | Drive system for a variable diameter tilt rotor |
US7071578B1 (en) * | 2002-01-10 | 2006-07-04 | Mitsubishi Heavy Industries, Ltd. | Wind turbine provided with a controller for adjusting active annular plane area and the operating method thereof |
US6972498B2 (en) * | 2002-05-28 | 2005-12-06 | General Electric Company | Variable diameter wind turbine rotor blades |
US7475847B2 (en) * | 2002-09-09 | 2009-01-13 | Gerbino Allen J | Retractable lifting blades for aircraft |
AU2003263827A1 (en) * | 2003-07-29 | 2005-03-07 | General Electric Company | Variable diameter rotor |
JP2005061320A (en) * | 2003-08-12 | 2005-03-10 | Kunio Miyazaki | Windmill structure of wind power generation device |
RU2397113C2 (en) * | 2005-10-05 | 2010-08-20 | Сикорски Эркрафт Корпорейшн | Mechanism of parrying swash plate torque |
US8459948B2 (en) * | 2008-10-24 | 2013-06-11 | Esteban A. Caraballoso | Retractable composite rotor blade assembly |
US8784057B2 (en) * | 2011-02-28 | 2014-07-22 | The Boeing Company | Disc rotor retraction system |
US9994310B2 (en) * | 2014-12-15 | 2018-06-12 | The Boeing Company | Rotor assembly apparatus |
CN105292467A (en) * | 2015-11-06 | 2016-02-03 | 中国航空工业经济技术研究院 | Horizontal speed-raising system of rotorcraft |
US10723440B2 (en) | 2016-03-23 | 2020-07-28 | Amazon Technologies, Inc. | Aerial vehicle with different propeller blade configurations |
US10583914B2 (en) * | 2016-03-23 | 2020-03-10 | Amazon Technologies, Inc. | Telescoping propeller blades for aerial vehicles |
US10526070B2 (en) | 2016-03-23 | 2020-01-07 | Amazon Technologies, Inc. | Aerial vehicle propulsion mechanism with coaxially aligned propellers |
US10399666B2 (en) | 2016-03-23 | 2019-09-03 | Amazon Technologies, Inc. | Aerial vehicle propulsion mechanism with coaxially aligned and independently rotatable propellers |
US11305874B2 (en) | 2016-03-23 | 2022-04-19 | Amazon Technologies, Inc. | Aerial vehicle adaptable propeller blades |
TR202022410A1 (en) * | 2020-12-30 | 2022-07-21 | Tusas Tuerk Havacilik Ve Uzay Sanayii Anonim Sirketi | Rotary wing aircraft. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3227399A (en) * | 1963-09-16 | 1966-01-04 | Dastoli Joseph | Safety aircraft system |
US3297094A (en) * | 1965-10-20 | 1967-01-10 | Boeing Co | Aircraft propelling assembly |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3128829A (en) * | 1964-04-14 | Variable diameter propeller | ||
GB252461A (en) * | 1925-02-27 | 1926-05-27 | Kurt Bilau | Improvements in or relating to wind-driven prime movers |
US2163482A (en) * | 1936-01-01 | 1939-06-20 | Cameron Peter | Aircraft having rotative sustaining means |
NL79056C (en) * | 1950-08-18 | 1955-04-15 |
-
1969
- 1969-09-18 US US00859094A patent/US3768923A/en not_active Expired - Lifetime
-
1970
- 1970-08-13 GB GB3915570A patent/GB1332658A/en not_active Expired
- 1970-08-27 CA CA091,709A patent/CA940513A/en not_active Expired
- 1970-09-14 IT IT53393/70A patent/IT954097B/en active
- 1970-09-16 DE DE2045637A patent/DE2045637C3/en not_active Expired
- 1970-09-18 FR FR7033945A patent/FR2173631B1/fr not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3227399A (en) * | 1963-09-16 | 1966-01-04 | Dastoli Joseph | Safety aircraft system |
US3297094A (en) * | 1965-10-20 | 1967-01-10 | Boeing Co | Aircraft propelling assembly |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2552395A1 (en) * | 1983-09-26 | 1985-03-29 | Banolas De Ayala Maria Pilar | IMPROVEMENTS ON LIFT PROPELLERS FOR AIRCRAFT |
Also Published As
Publication number | Publication date |
---|---|
DE2045637B2 (en) | 1979-05-03 |
DE2045637C3 (en) | 1980-01-03 |
GB1332658A (en) | 1973-10-03 |
US3768923A (en) | 1973-10-30 |
IT954097B (en) | 1973-08-30 |
FR2173631B1 (en) | 1975-09-26 |
CA940513A (en) | 1974-01-22 |
DE2045637A1 (en) | 1973-10-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |