• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:NL2011651A
    申请号:NL2011651
    申请日:2013-10-21
    公开日:2014-04-23
    发明作者:Roland Store
    申请人:Roland Store；
    IPC主号:
    专利说明:

    COMPOSITE Z-SECTION WIND ROTOR
    The proposed invention is a vertical axis wind-powered device for producing useable rotational power from the wind. The rotor responds to wind from any direction without adjustment, and can withstand strong winds without overspeeding. The rotor is suited to construction from wood, of which plywood would be the preferred material.
    In accordance with the invention there is provided a vertical axis wind rotor in accordance with the claims hereinafter.
    In a preferred aspect the invention comprises a rotor consisting of a vertically mounted central Z-section rotor blade with outer flanges trailing with respect to the direction of rotation, and athwart the central rotor on a central horizontal perpendicular line are two outlying vertical laminar blades, one on each side and each being equidistant from the centre with the blades incorporating a gentle curvature sympathetic to the direction of rotation (concave with the wind and convex against the wind) and with joined vertical trailing flanges at the outer lateral extremity in each case.
    With respect to the Z-section concept reference is made to the inventor’s prior patent GB2097481B for a Wind or Water-Powered Rotor Blade.
    In construction, the main plane of the central Z-blade may be of laminated construction in order to encase a central vertical mounting shaft. The upper and lower extremities of both the Z-blade and the outlying blades with flanges may be let into upper and lower horizontal former plates and secured to form a rigid structure.
    In use, a lower extension of a vertical rotor shaft could be secured in bearings within a tubular sleeve in conjunction with suitable constructional arrangements for power take-off.
    An embodiment of the invention will now be described, by way of example only, with reference to the following drawings, which are:
    Figure 1 Side view of the wind rotor.
    Figure 2 Section seen in the direction of arrows A-A’.
    Figure 3 End view of the rotor.
    Figure 4 Cover plate for Z-blade with lifting eye.
    Figure 5 Profile plan for upper and lower formers.
    As a preliminary to a description of the method of construction and assembly, consideration is given to the various types of material which may be used. The preferred material of construction for the majority of the flat components is marine plywood. The exceptions are the metallic plates 6 & 7 either side of the Z-blade required to spread the load of fixing bolt 4 and the lifting eye and base plate 5. The two curved outlying blades 12 may be made from sheet metal, which has been rolled to produce the required curvature, or alternatively curved plywood panels may be prepared by laminating thin glued wooded sheets in a concrete mould made for the purpose. Such a concrete mould would incorporate a matching male component, the weight of which would apply pressure on the inside of the female curvature, with the laminate sheets pressed between.
    The thickness of the materials used depends on the overall size of the finished rotor. Thicker materials will better withstand the additional stresses associated with rotors of larger dimensions. Safety margins should not be too liberal in designing to a specific size, since unnecessary material incorporated in the design will incur a weight penalty, which in particular will limit the start-up response.
    In conjunction with plywood, the Z-blade incorporates some shaped softwood as shown in Figure 2. Two part thermosetting adhesive (e.g. epoxy resin), as used in wooden boat building, is recommended throughout the construction, assisted by the use of countersunk woodscrews, which are not shown in the drawings.
    With all pieces finished to size, the Z-blade is assembled as shown in Figure 2. It should be noted that the dimensions of the square cavity on the vertical centre line of the Z-blade should be accurate in order that the mounting shaft 1 will make contact with all four side walls of the cavity. Load bearing plates 6 & 7 are fixed in position around a central hole for fixing bolt 4, which penetrates the mounting shaft and is secured by a locknut.
    Upper and lower formers 2 & 3 are profile cut with a jigsaw as shown in Figure 5. Cutouts 14 & 15 together with the slots cut for the outlying flanges 11, are cut and removed, then trimmed to size in order that the ends of the curved panels can be inserted in conjunction with the trimmed and glued cutout in each case forming a secure attachments and incorporating the outlying flanges at the same time. The larger central cutout is removed from formers 2 & 3 and the ends of the Z-blade glued and inserted. In addition, triangular section fillets 10 are glued in place for extra strength where the main blade meets the upper and lower formers 2 & 3. If desired, the joint between the outlying flanges 11 and curved blades 12 can be strengthened with fibreglass tape and thermosetting resin on the inside surface where the two components join.
    Cover plate 13 together with lifting eye and base plate 5 are attached by means of four bolts with locknuts, see Figures 1, 3 and 4. Prior to assembly, the eye component itself should be strongly and rigidly secured to the base plate, for example by welding.
    All screws, nuts and bolts and sheet metal incorporated in the overall assembly should ideally be stainless steel or at least non-corrodible metal.
    When the whole rotor assembly is complete, the structure should be smoothed and finished before applying overall several coats of polyurethane varnish for weatherproofing. The varnish should be formulated for exterior use.
    The proposed invention is a vertical axis wind-powered device for producing useable rotational power from the wind. The rotor responds to wind from any direction without adjustment, and can withstand strong winds without over speeding. The rotor is suited to construction from wood, of which plywood would be the preferred material.
    A central Z-section blade mounted vertically between two horizontal formers 2 houses a mounting shaft 1 within the main body 8, which supports bent back flanges 9. Vertical curved outlying blades 12 incorporate a flange 11 at the outermost lateral extremity.
    CLAUSES
    1. A vertical axis wind rotor comprising a vertically mounted central Z-section rotor blade with outer flanges trailing with respect to an intended direction of rotation, and athwart the central rotor blade are disposed two or more outlying vertical ancillary blades.
    2. A wind rotor as claimed in claim 1 wherein each blade has a profile which incorporates a transverse curvature sympathetic to the direction of rotation, which curvature is concave with respect to an incoming wind direction and convex against the wind.
    3. A wind rotor as claimed in claim 2 wherein each ancillary blade further incorporates a trailing flange portion disposed at an outer lateral extremity thereof.
    4. A wind rotor as claimed in claim 3 wherein each blade comprises a laminar curved portion which at its outer lateral extremity to said trailing flange.
    5. A wind rotor as claimed in any or the preceding claims wherein there are only two ancillary blades.
    6. A wind rotor as claimed in claim 5 wherein therein the ancillary blades are disposed on each side of a central plane of the Z-section rotor blade.
    7. A wind rotor as claimed in claim 6 wherein each ancillary blade is disposed equidistant from a rotational centre of the rotor blade.
    8. A wind rotor as claimed in claims 6 or 7 wherein each ancillary blade is disposed on a notional central horizontal line perpendicular to the central plane of the Z-section blade.
    9. A wind rotor as claimed in any of the preceding claims wherein the rotor blade and the ancillary blades are fixed upstanding to a generally horizontal base plate.
    10. A wind rotor as claimed in claim 9 wherein there is generally horizontal upper plate with the rotor blade and ancillary blades sandwiched therebetween.
    11. A wind rotor as claimed in any of the preceding claims wherein the Z-section rotor blade has a laminated centre section with a central square-section cavity.
    12. A wind rotor as clamed in claim 11 wherein an upper end region of an upstanding rotor shaft is securely housed in said square section cavity.
    13. A wind rotor as claimed in claim 1 comprising said vertically mounted central Z-section rotor blade with outer flanges trailing with respect to the direction of rotation, and athwart the central rotor on a central horizontal line perpendicular to the central plane of the Z-blade are the two outlying vertical laminar blades, one on each side and each being equidistant from the centre with the blades incorporating a gentle transverse curvature sympathetic to the direction of rotation which is to say concave with the wind and convex against the wind, and with joined vertical trailing flanges at the outer lateral extremity in each case.
    权利要求:
    Claims (13)
    [1]
    A wind rotor with a vertical axis comprising a vertically mounted central Z-section rotor blade with outer flanges at the rear relative to an intended rotation direction, wherein two or more outer vertical auxiliary blades are arranged transversely of the central rotor blade.
    [2]
    2. Wind rotor as claimed in claim 1, wherein each blade has a profile which comprises a transverse curvature cooperating with the direction of rotation, which curvature is concave with respect to an incoming wind direction and convex against the wind.
    [3]
    The wind rotor of claim 2, wherein each auxiliary blade further comprises a rear flange portion arranged at an outer lateral end thereof.
    [4]
    The wind rotor of claim 3, wherein each blade comprises a laminar curved portion that is coupled at its outer lateral end to the posterior flange.
    [5]
    Wind rotor according to one of the preceding claims, wherein there are only two auxiliary blades.
    [6]
    The wind rotor of claim 5, wherein the auxiliary blades are positioned on either side of a central plane of the Z-section rotor blade.
    [7]
    The wind rotor of claim 6, wherein each auxiliary blade is positioned equidistantly relative to a center of rotation of the rotor blade.
    [8]
    A wind rotor as claimed in claim 6 or 7, wherein each auxiliary blade is positioned on an imaginary central horizontal line perpendicular to the central plane of the Z-section blade.
    [9]
    Wind rotor as claimed in any of the foregoing claims, wherein a rotor blade and the auxiliary blades are mounted upright on a generally horizontal base plate.
    [10]
    The wind rotor of claim 9, wherein there is a generally horizontal top plate with the rotor blade and the auxiliary blades sandwiched in between.
    [11]
    A wind rotor according to any one of the preceding claims, wherein the Z-section rotor blade has a laminated center section with a central cavity with a square cross-section.
    [12]
    The wind rotor of claim 11, wherein the upper end region of an upright rotor shaft is securely housed in said cavity of square cross-section.
    [13]
    The wind rotor according to claim 1, comprising said vertically attached central Z-section rotor blade with outer flanges at the rear with respect to the direction of rotation, and wherein transversely of the central rotor on a central horizontal line perpendicular to the central plane of the Z-blade the are two outer vertical laminar blades, one on each side and each equidistant with respect to the center, the blades having a slight transverse curvature cooperating with respect to the direction of rotation, i.e. concave with the wind and convex against the wind, and with vertical rear flanges coupled in each case to the outer lateral end.
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    同族专利:
    公开号 | 公开日
    GB201223421D0|2013-02-06|
    GB201218983D0|2012-12-05|
    NL2011651C2|2014-08-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2014-08-13| SD| Assignments of patents|Effective date: 20140806 |
    2021-06-02| MM| Lapsed because of non-payment of the annual fee|Effective date: 20201101 |
    优先权:
    申请号 | 申请日 | 专利标题
    GBGB1218983.3A|GB201218983D0|2012-10-22|2012-10-22|Composite z-section wind rotor|
    GB201218983|2012-10-22|
    GBGB1223421.7A|GB201223421D0|2012-10-22|2012-12-21|Composite z-section wind rotor|
    GB201223421|2012-12-21|
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