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FR2443591A1 - Aerofoil blade with root reinforcement - has reinforcement comprising glass-fibre tape wrapped around root of blade - Google Patents

Aerofoil blade with root reinforcement - has reinforcement comprising glass-fibre tape wrapped around root of blade

Info

Publication number
FR2443591A1
FR2443591A1 FR7834703A FR7834703A FR2443591A1 FR 2443591 A1 FR2443591 A1 FR 2443591A1 FR 7834703 A FR7834703 A FR 7834703A FR 7834703 A FR7834703 A FR 7834703A FR 2443591 A1 FR2443591 A1 FR 2443591A1
Authority
FR
France
Prior art keywords
reinforcement
root
blade
glass
wrapped around
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.)
Withdrawn
Application number
FR7834703A
Other languages
French (fr)
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.)
Aerowatt SA
Original Assignee
Aerowatt SA
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 Aerowatt SA filed Critical Aerowatt SA
Priority to FR7834703A priority Critical patent/FR2443591A1/en
Publication of FR2443591A1 publication Critical patent/FR2443591A1/en
Withdrawn legal-status Critical Current

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
    • B64C11/16—Blades
    • B64C11/20—Constructional features
    • B64C11/26—Fabricated blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Wind Motors (AREA)

Abstract

The propellor blade has a metal armature made from aluminium alloy. The armature extends over the length of the blade and has an effective profile and a root. The root is protected by a reinforcing rib joined to the root by layered glass resin fibre. The thickness of the layers is reduced towards the upper part of the reinforcement. The thickness of the reinforcement may be varied according to the loading on the blade.
FR7834703A 1978-12-08 1978-12-08 Aerofoil blade with root reinforcement - has reinforcement comprising glass-fibre tape wrapped around root of blade Withdrawn FR2443591A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7834703A FR2443591A1 (en) 1978-12-08 1978-12-08 Aerofoil blade with root reinforcement - has reinforcement comprising glass-fibre tape wrapped around root of blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7834703A FR2443591A1 (en) 1978-12-08 1978-12-08 Aerofoil blade with root reinforcement - has reinforcement comprising glass-fibre tape wrapped around root of blade

Publications (1)

Publication Number Publication Date
FR2443591A1 true FR2443591A1 (en) 1980-07-04

Family

ID=9215878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7834703A Withdrawn FR2443591A1 (en) 1978-12-08 1978-12-08 Aerofoil blade with root reinforcement - has reinforcement comprising glass-fibre tape wrapped around root of blade

Country Status (1)

Country Link
FR (1) FR2443591A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0284778A2 (en) * 1987-03-28 1988-10-05 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Fan blade, particularly for prop-fan engines
US5490764A (en) * 1994-05-23 1996-02-13 General Electric Company Unshrouded blading for high bypass turbofan engines

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE704743C (en) * 1936-08-25 1941-04-05 Hugo Heine Wing attachment for propellers with wooden wings that can be adjusted when not in use
DE714291C (en) * 1938-09-15 1941-11-26 J H Schaefer & Co Attachment of a wooden propeller wing in an undivided metal shaft sleeve
US2276262A (en) * 1939-06-27 1942-03-10 United Aircraft Corp Composite propeller
US2950083A (en) * 1954-07-23 1960-08-23 Thompson Ramo Wooldridge Inc Blade assembly
US3303889A (en) * 1966-02-15 1967-02-14 Curtiss Wright Corp Propeller blade and hub assembly
FR2355637A2 (en) * 1975-08-26 1978-01-20 Hawker Siddeley Dynamics Ltd IMPROVEMENTS IN THE MANUFACTURING OF PROPELLER BLADES
FR2372972A1 (en) * 1976-12-01 1978-06-30 Aerowatt IMPROVEMENTS AT AEROGENERATOR BLADE FEET

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE704743C (en) * 1936-08-25 1941-04-05 Hugo Heine Wing attachment for propellers with wooden wings that can be adjusted when not in use
DE714291C (en) * 1938-09-15 1941-11-26 J H Schaefer & Co Attachment of a wooden propeller wing in an undivided metal shaft sleeve
US2276262A (en) * 1939-06-27 1942-03-10 United Aircraft Corp Composite propeller
US2950083A (en) * 1954-07-23 1960-08-23 Thompson Ramo Wooldridge Inc Blade assembly
US3303889A (en) * 1966-02-15 1967-02-14 Curtiss Wright Corp Propeller blade and hub assembly
FR2355637A2 (en) * 1975-08-26 1978-01-20 Hawker Siddeley Dynamics Ltd IMPROVEMENTS IN THE MANUFACTURING OF PROPELLER BLADES
FR2372972A1 (en) * 1976-12-01 1978-06-30 Aerowatt IMPROVEMENTS AT AEROGENERATOR BLADE FEET

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0284778A2 (en) * 1987-03-28 1988-10-05 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Fan blade, particularly for prop-fan engines
EP0284778A3 (en) * 1987-03-28 1989-03-15 Mtu Muenchen Gmbh Fan blade, particularly for prop-fan engines
US5490764A (en) * 1994-05-23 1996-02-13 General Electric Company Unshrouded blading for high bypass turbofan engines

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Legal Events

Date Code Title Description
ST Notification of lapse