GB244385A - Improvements in or relating to the control of the effect of fluid currents on the stream line surfaces of prime movers - Google Patents

Improvements in or relating to the control of the effect of fluid currents on the stream line surfaces of prime movers

Info

Publication number
GB244385A
GB244385A GB26699/25A GB2669925A GB244385A GB 244385 A GB244385 A GB 244385A GB 26699/25 A GB26699/25 A GB 26699/25A GB 2669925 A GB2669925 A GB 2669925A GB 244385 A GB244385 A GB 244385A
Authority
GB
United Kingdom
Prior art keywords
relating
effect
control
slots
prime movers
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.)
Expired
Application number
GB26699/25A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VENTIMOTOR AG
Original Assignee
VENTIMOTOR AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by VENTIMOTOR AG filed Critical VENTIMOTOR AG
Priority to GB26699/25A priority Critical patent/GB244385A/en
Publication of GB244385A publication Critical patent/GB244385A/en
Expired legal-status Critical Current

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
    • F03D7/0244—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
    • F03D7/0252—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking with aerodynamic drag devices on the blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/02—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/06—Boundary layer controls by explicitly adjusting fluid flow, e.g. by using valves, variable aperture or slot areas, variable pump action or variable fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/20—Boundary layer controls by passively inducing fluid flow, e.g. by means of a pressure difference between both ends of a slot or duct
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Wind Motors (AREA)

Abstract

244,385. Aero-Dynamos, Ltd., (Ventimotor Akt.-Ges.). Nov. 18, 1924. Regula.ting.-In current motors, for example wind motors, having blades 1 of stream-line form, angular-shaped slots 2 are provided which lead from the pressure side to the rear or suction side, the flow of air through these slots being regulated by spring or like controlled valves 3 pivoted on the rear side of the blades. When the wind pressure exceeds a certain limit, the valves 3 open and the transverse current through the slots disturbs the stream lines on the rear side and exerts a braking effect. Specification 206,160 is referred to.
GB26699/25A 1924-11-18 1924-11-18 Improvements in or relating to the control of the effect of fluid currents on the stream line surfaces of prime movers Expired GB244385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB26699/25A GB244385A (en) 1924-11-18 1924-11-18 Improvements in or relating to the control of the effect of fluid currents on the stream line surfaces of prime movers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26699/25A GB244385A (en) 1924-11-18 1924-11-18 Improvements in or relating to the control of the effect of fluid currents on the stream line surfaces of prime movers

Publications (1)

Publication Number Publication Date
GB244385A true GB244385A (en) 1925-12-17

Family

ID=10247810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26699/25A Expired GB244385A (en) 1924-11-18 1924-11-18 Improvements in or relating to the control of the effect of fluid currents on the stream line surfaces of prime movers

Country Status (1)

Country Link
GB (1) GB244385A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493895A (en) * 1945-05-09 1950-01-10 Osterback Alvin Automatic control for wind-driven propellers
GB2157774A (en) * 1984-04-26 1985-10-30 Lawson Tancred Sons & Company Wind turbine blades
GB2186033A (en) * 1986-02-28 1987-08-05 Nei International Research & D Wind turbine
US4714408A (en) * 1985-06-06 1987-12-22 Nissan Motor Co., Ltd. Radiator fan
GB2216959A (en) * 1988-03-22 1989-10-18 Marlec Engineering Co Limited Air turbine or propellor blade
US5106265A (en) * 1989-04-25 1992-04-21 Astrid Holzem Wind-turbine wing with a pneumatically actuated spoiler
US7011503B2 (en) * 2004-05-13 2006-03-14 International Business Machines Corporation Fan blade for allowing airflow with fan in failure condition
GB2431975A (en) * 2005-11-03 2007-05-09 Anthony Gregory Smith The use of porous surfaces for flight controls
WO2010034749A2 (en) * 2008-09-26 2010-04-01 Vestas Wind Systems A/S Flow control device and method of controlling a fluid boundary layer on a rotating wind turbine blade
WO2012093022A3 (en) * 2011-01-06 2012-08-30 Siemens Aktiengesellschaft Load mitigation device for wind turbine blades
EP2549097A1 (en) 2011-07-20 2013-01-23 LM Wind Power A/S Wind turbine blade with lift-regulating means
DK178193B1 (en) * 2010-12-07 2015-08-03 Gen Electric Wind turbine rotor blade with permeable window and controllable cover element
DE102011053712B4 (en) 2010-09-17 2022-12-22 General Electric Company WIND TURBINE ROTOR BLADE WITH ACTUABLE PROFILE PASSAGES

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493895A (en) * 1945-05-09 1950-01-10 Osterback Alvin Automatic control for wind-driven propellers
GB2157774A (en) * 1984-04-26 1985-10-30 Lawson Tancred Sons & Company Wind turbine blades
WO1985004930A1 (en) * 1984-04-26 1985-11-07 Sir Henry Lawson-Tancred, Sons & Co Ltd Wind turbine blades
US4714408A (en) * 1985-06-06 1987-12-22 Nissan Motor Co., Ltd. Radiator fan
GB2186033B (en) * 1986-02-28 1990-01-04 Northern Eng Ind Wind turbine
GB2186033A (en) * 1986-02-28 1987-08-05 Nei International Research & D Wind turbine
GB2216959B (en) * 1988-03-22 1992-11-04 Marlec Engineering Co Limited Air turbine or propellor
GB2216959A (en) * 1988-03-22 1989-10-18 Marlec Engineering Co Limited Air turbine or propellor blade
US5106265A (en) * 1989-04-25 1992-04-21 Astrid Holzem Wind-turbine wing with a pneumatically actuated spoiler
US7011503B2 (en) * 2004-05-13 2006-03-14 International Business Machines Corporation Fan blade for allowing airflow with fan in failure condition
GB2431975A (en) * 2005-11-03 2007-05-09 Anthony Gregory Smith The use of porous surfaces for flight controls
WO2010034749A2 (en) * 2008-09-26 2010-04-01 Vestas Wind Systems A/S Flow control device and method of controlling a fluid boundary layer on a rotating wind turbine blade
WO2010034749A3 (en) * 2008-09-26 2010-11-11 Vestas Wind Systems A/S Flow control device and method of controlling a fluid boundary layer on a rotating wind turbine blade
DE102011053712B4 (en) 2010-09-17 2022-12-22 General Electric Company WIND TURBINE ROTOR BLADE WITH ACTUABLE PROFILE PASSAGES
DK178193B1 (en) * 2010-12-07 2015-08-03 Gen Electric Wind turbine rotor blade with permeable window and controllable cover element
WO2012093022A3 (en) * 2011-01-06 2012-08-30 Siemens Aktiengesellschaft Load mitigation device for wind turbine blades
CN103282652B (en) * 2011-01-06 2016-10-05 西门子公司 The load mitigation device of wind turbine blade
EP2549097A1 (en) 2011-07-20 2013-01-23 LM Wind Power A/S Wind turbine blade with lift-regulating means

Similar Documents

Publication Publication Date Title
GB244385A (en) Improvements in or relating to the control of the effect of fluid currents on the stream line surfaces of prime movers
US2718897A (en) Quick release valve
GB1017035A (en) Improvements in or relating to multiple ring valves
US1943574A (en) Fluid pressure brake
GB247650A (en) Improvements in or relating to the control of the effect of fluid currents on the stream line surfaces of prime movers
GB550713A (en) Improvements in or relating to aerofoils
US2170237A (en) Brake control means
US1703896A (en) Fluid-pressure brake
US2068340A (en) Electric and fluid pressure brake system
US1860414A (en) Duplex control of reservoir pressure
GB403379A (en) Improvements in or relating to means for regulating the output of prime movers of electric generating plant
US1854722A (en) Fluid pressure brake
US2424480A (en) Fluid pressure brake apparatus
US1525627A (en) Feed-valve device
GB519623A (en) Improvements relating to arrangements for sucking-off the boundary layer on aeroplane wings
US2294601A (en) Locomotive brake equipment
GB400237A (en) Improvements in or relating to the regulation of machines working in parallel
GB201034A (en) Improved means for the hydraulic transmission of power
US1832893A (en) Fluid pressure braking apparatus
US931237A (en) Air-brake.
US1434385A (en) Fluid-pressure brake
US1603530A (en) Automatic train control
GB387899A (en) A device for extracting power from flowing media
GB746153A (en) Railway fluid-pressure brake distributor valve
SU6558A1 (en) Valve for air release from the air sprinkler network