US1649057A - Blade or vane applicable to wind wheels, propellers, and the like - Google Patents

Blade or vane applicable to wind wheels, propellers, and the like Download PDF

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Publication number
US1649057A
US1649057A US163534A US16353427A US1649057A US 1649057 A US1649057 A US 1649057A US 163534 A US163534 A US 163534A US 16353427 A US16353427 A US 16353427A US 1649057 A US1649057 A US 1649057A
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US
United States
Prior art keywords
blades
wind
propellers
blade
applicable
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 - Lifetime
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US163534A
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English (en)
Inventor
Bunkenburg August
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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
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Publication of US1649057A publication Critical patent/US1649057A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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
    • F05B2240/301—Cross-section characteristics
    • 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

Definitions

  • the present invention relates to the construction of blades or vanes applicable to windwheels, propellers and the like, wherein a plurality of blades are arranged one be hind another.
  • Arrangements are known in which such blades, of ordinary helical form, are in axial registration or alignment instead of being relatively staggered. More over, it has been proposed, in the case of individual blades of a single propeller, to give them a compound-curved form in cross section, one part being concave and another part convex.
  • the blades arranged one behind another in addition to being located in axial alignment, are each of a form which presents in cross-section a curve of double or contrary tlexure.
  • Figure 1 is a front elevation of a windwheel
  • Figure 2 a side elevation of the same
  • Figure 3 is a transverse section through the blades.
  • the 07 is the shaft of an air power machine car rying the blades (Z (Z on the arms 0 0 which are diametrically opposed but preferably made in one piece and rigidly secured to the shaft a by means of the hub 22.
  • the blades (Z al which, in the constructional example given in the drawings, are substantially rectangular at their outer edges as viewed from the front, are each formed, in the direction of their width, in a curve of double or contrary flexure, and the curves of the diametrically opposite blades are relatively opposed, as clearly shown in Figure 3, so that they reflect the screw form of propeller.
  • the blades (Z d are of such superficial area, that each pair occupies about the elevt of the circle which they describe heir rotation.
  • a plurality of diametrically opposite arms 0 c are arranged on the shaft a one behind the other with the blades (Z (Z and united into a rigid entity, so that curved channels of small width will be formed between the blades (Z and the blades (Z respectively.
  • the union of the successively arranged blades cZ al into a rigid entity is preferably efiected by peripherally aiiixed closing members 6 6 a series of cells made up of curved channels being thus formed.
  • the blades described, in addition to being used for power producing wind-wheels can also be employed as a propelling medium for aircraft, for land and water conveyances and for ventilating purposes.
  • lllti a plurality of blades arranged one behind another in axial alinement said blades being each formed, in the direction of its width, in a curve of double or contrary flexure, a plate rigidly connecting the blades at, their outer ends and closing the space between them, substantially as and for the purposes set forth.

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  • Engineering & Computer Science (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)
  • Wind Motors (AREA)
US163534A 1925-04-06 1927-01-25 Blade or vane applicable to wind wheels, propellers, and the like Expired - Lifetime US1649057A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1649057X 1925-04-06
GB505/27A GB274724A (en) 1927-01-07 1927-01-07 Improvements in and relating to blades or vanes applicable to wind-wheels, propellers and the like

Publications (1)

Publication Number Publication Date
US1649057A true US1649057A (en) 1927-11-15

Family

ID=9705521

Family Applications (1)

Application Number Title Priority Date Filing Date
US163534A Expired - Lifetime US1649057A (en) 1925-04-06 1927-01-25 Blade or vane applicable to wind wheels, propellers, and the like

Country Status (6)

Country Link
US (1) US1649057A (de)
BE (1) BE340727A (de)
CH (1) CH125060A (de)
FR (1) FR628904A (de)
GB (1) GB274724A (de)
NL (1) NL19724C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032119A (en) * 1959-05-20 1962-05-01 Hachmann Hans Wind power plant
US3174681A (en) * 1963-02-27 1965-03-23 Aerovent Fan Company Inc Reversible propeller

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865077A (zh) * 2010-06-23 2010-10-20 傅筱懿 风力发电机的风叶结构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032119A (en) * 1959-05-20 1962-05-01 Hachmann Hans Wind power plant
US3174681A (en) * 1963-02-27 1965-03-23 Aerovent Fan Company Inc Reversible propeller

Also Published As

Publication number Publication date
NL19724C (de)
CH125060A (de) 1928-03-16
BE340727A (de)
FR628904A (fr) 1927-10-31
GB274724A (en) 1927-07-28

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