Patents Assigned to Windworks Engineering Limited
  • Patent number: 8469665
    Abstract: A vertical axis wind turbine (1) comprises three vertically extending sails (8) where each sail (8) comprises a strip (80) of substantially constant width. The opposite ends of each sail (8) are longitudinally twisted to have a pitch angle of approximately 90 degrees. The turbine (1) further comprises a vertically extending central core (7) and a vertically extending opening (9) between each sail (9) and the core (7). Also disclosed is an improvement in a vertical axis wind turbine (91) having at least one main blade (94) each of which has a longitudinal extent and a longitudinally extending radially outermost edge (924). The improvement comprises a longitudinally extending auxiliary blade (944) spaced from the main blade (94) to define a venturi inducing gap (99) between the main blade (94) and the auxiliary blade (944) whereby the turbine (91) has a zone of influence which extends radially beyond the maximum radial extent of the blades.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: June 25, 2013
    Assignee: Windworks Engineering Limited
    Inventor: Joseph Bertony
  • Patent number: 8297930
    Abstract: A vertical axis wind turbine has a plurality of main blades each of which is relatively thin. The blades each have a thickened portion extending along the trailing edge of each blade. Furthermore, each blade is fabricated in at least two sub-sections, wherein at least one strut extends between a central support column and a junction where the blade sub-sections abut.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: October 30, 2012
    Assignee: Windworks Engineering Limited
    Inventor: Joseph Bertony
  • Publication number: 20120219426
    Abstract: The present disclosure provides a blade for a wind turbine. The wind turbine has an axis about which in use the blade rotates. The blade is arranged for orientation along the axis and has a predetermined twisted shape. The blade has a first and an opposite second side portion. The first and second side portions have edges and are coupled together at the edges. The first and second side portions are shaped such that a blade body is formed that is shaped such that maintaining the predetermined twisted shape of the blade is facilitated.
    Type: Application
    Filed: August 20, 2010
    Publication date: August 30, 2012
    Applicant: WINDWORKS ENGINEERING LIMITED
    Inventor: Azad Hessamodini
  • Publication number: 20120207605
    Abstract: A blade assembly is for a wind turbine, such as a vertical axis wind turbine. The blade assembly includes 3 or more blades and has an axis of rotation about which in use the blades rotate. In one variation the blades are elongated and have first and second ends and are twisted between their ends. The blades are positioned along the axis of rotation in a manner such that the first (bottom) end of each blade has a portion that has substantially the same angular orientation as a portion of the second (top) end of an adjacent blade. Alternatively or additionally the blades are arranged for orientation along the axis of rotation and are twisted about an axis of twist. The axis of twist substantially coincides with the axis of rotation of the wind turbine.
    Type: Application
    Filed: August 20, 2010
    Publication date: August 16, 2012
    Applicant: WINDWORKS ENGINEERING LIMITED
    Inventor: Azad Hessamodini
  • Publication number: 20090317255
    Abstract: A vertical axis wind turbine (1) has a plurality of main blades (7, 8, 9) each of which is relatively thin. The blades (7, 8, 9) each have a thickened portion (28) extending along the trailing edge (18) of each blade (7, 8, 9). Furthermore, the or each blade (7, 8, 9) is fabricated in at least two sub-sections, (801-806) wherein at least one strut (50-52) extends between a central support column (13) and a junction where the blade sub-sections (801-806) abut.
    Type: Application
    Filed: March 21, 2007
    Publication date: December 24, 2009
    Applicant: WINDWORKS ENGINEERING LIMITED
    Inventor: Joseph Bertony