Class / Patent application number | Description | Number of patent applications / Date published |
416227000 | Openwork (e.g., lattice, looped, etc.) | 23 |
20090191063 | LIGHTWEIGHT COMPOSITE TRUSS WIND TURBINE BLADE - A lightweight wind turbine blade formed with a truss support structure assembly of composite truss joints including composite spar and cross members attached to and supporting in spaced relation a spine of lightweight rib panels. The rib panels are oriented in parallel spaced relation from one another and individually molded with perimeters defining individual areas of curvature for the finished blade assembly. The truss support structure is covered with a lightweight fiberglass or hardened fabric skin attached to and fitted on respective rib panel edges forming an airfoil structure. | 07-30-2009 |
20090196757 | LIGHTWEIGHT COMPOSITE TRUSS WIND TURBINE BLADE - A lightweight wind turbine blade formed with a truss support structure assembly of composite truss joints including composite spar and cross members attached to and supporting in spaced relation a spine of lightweight rib panels. The rib panels are oriented in parallel spaced relation from one another and individually molded with perimeters defining individual areas of curvature for the finished blade assembly. The truss support structure is covered with a lightweight fiberglass or hardened fabric skin attached to and fitted on respective rib panel edges forming an airfoil structure. | 08-06-2009 |
20090202356 | VERTICAL AXIS ROTOR-TYPE WIND TURBINE - The invention refers to the field of wind power engineering, particularly to the vertical axis rotor-type wind turbines, which can be used for drive of electric generators or other using equipment of mechanical energy. The rotor-type wind turbine contains a central vertical shaft, mounted in a hollow elongated supporting column, and rotor structure, comprising two lattice-type blocks with power elements—the lattice-type stacks of aerodynamic blades. Each of the lattice-type blocks is carried by two corresponding lattice-type arms. When using the wind turbine two-block structure, the blocks are positioned by 180° to each other. The end parts of the aerodynamic lattice-type blades in blade blocks are fastened in relevant upper and lower shroud flanges. Each blade block forms the lattice and inter-blade channels so that the efficiency of utilization of the energy of the wind blowing along the inter-blade channels is determined as the sum of thermodynamic component and kinetic component of the factor of utilization kinetic energy of wind. Moreover, the design of vertical-axis wind turbine provided with lattice-type blade blocks and inter-blade channels ensure the rotation of the rotor under the impact of air flux even at low wind velocities. | 08-13-2009 |
20100074757 | SWIRLER VANE - A vane used on a swirler is provided. The vane includes a thin end and a broad end, the broad end has sharp edges and is arranged on the outside of the swirler, the thin end is arranged on the inside of the swirler. The vane also includes at least one swirl slot side profile, the at least one swirl slot side profile includes a unit providing turbulence to an air flow. | 03-25-2010 |
20100189565 | SECTIONAL VANE FOR VERTICAL AXIS WIND POWER GENERATOR - A sectional vane for vertical axis wind power generator includes a frame unit and a plurality of vane units. The frame unit is fixedly mounted to a main shaft of the wind power generator, and includes an upper frame member and at least one lower frame member. The upper and lower frame members are provided on inner side with an upper and a lower guide rail, respectively. The vane unit includes a vane body having an upper and a lower guide channel provided on a top and a bottom, respectively, corresponding to the upper and the lower guide rail. The vane units are assembled to the frame unit between the upper and the lower frame member through engagement of the guide channels with the guide rails. The sectional vane can be varied in height and area by providing different numbers of lower frame members and vane units. | 07-29-2010 |
20100260612 | WIND TURBINE BLADE AND METHOD OF CONSTRUCTING SAME - A wind turbine blade including a number of segments attached together end-to-end in a predetermined arrangement so that the respective covering subassemblies of the segments cooperate to form a substantially smooth surface of the wind turbine blade. Each segment includes a number of fiber tubes extending along preselected lengths of the segment respectively, the fiber tubes being laterally spaced apart from each other respectively to define gaps therebetween. The segment also includes a covering subassembly at least partially supported by the fiber tubes and at least partially defining an internal cavity. | 10-14-2010 |
20110123345 | Horizontal axis wind turbine rotor assembly with lifting body rotor blades - A horizontal axis wind turbine rotor assembly utilizes rotor blades having the aerodynamic characteristics of low aspect ratio lifting bodies. The aerodynamic characteristics of low aspect ratio lifting bodies at typical operating wind velocities permits high energy conversion efficiencies throughout a wide range of wind speeds. | 05-26-2011 |
20120034091 | AEROFOIL, AN AEROFOIL SUB-ASSEMBLY AND A METHOD OF MAKING THE SAME - An aerofoil sub-assembly of a blade, in particular an aerofoil blade for a gas turbine engine. A multi-layer construction including first and second skin panels which together define the external surfaces of the aerofoil and aerofoil leading and trailing edges. Between the skin panels at least there is at least one web-forming membrane which has a multiplicity of fingers trapped between the first and second panels at one of the edges and which extend away from the edge region. The fingers each have “dog-leg” shapes which are overlaid immediately behind the blade leading edge to form a transition zone providing additional support to resist crumpling of the hollow blade in the event of an external foreign object striking the leading edge. | 02-09-2012 |
20120121429 | Concentric ring wind turbine - A wind turbine for generating electrical power, the turbine having a rotating rotor assembly mounted onto a support structure, the rotor assembly having a rotating axle member, a plurality of rotating ring pair assemblies, each ring pair assembly having an inner ring member, an outer ring member and a plurality of blade members joining the inner ring to the outer ring, and a plurality of stay members connecting the ring members to the axle member in a concentric manner. | 05-17-2012 |
20120201687 | VERTICAL AXIS WIND TURBINE BLADE AND ITS WIND ROTOR - A vertical axis wind turbine comprising blade(s) characterized in an airfoil cross section, wherein the top end and the bottom end of said blade(s) are rotationally off-set from each other, twisted up with a vertical line vertical to the horizontal plane. | 08-09-2012 |
20120213641 | FLUID ENERGY CONVERTER - A fluid energy converter includes: a rotatable U-shaped rim rack having a raised along-edge wall forming a rail, a rotatable cylindrical frame and a plurality of vertical rectangular blades uniformly distributed and rotatably mounted in the frame. Each blade includes rollers alternately sliding in the recessed rail. The U-shape of the rim rack forms a hollow chamber in which a portion of the frame is received. The blades mounted in the frame are allowed to revolve about an arbor of the frame and at the same time, with the rollers being guided by the rail of the rim rack, the blades spin about their own axes. Instead of mechanical control, the rail formed in the rim rack is defined by a curve that has unique mathematic characteristics to set each blade to an optimum angle for receiving wind power so as to reduce resistance and better action of force thereon. | 08-23-2012 |
20130101427 | BLADE STRUCTURE AND CEILING FAN HAVING THE SAME - A blade structure and ceiling fan having the same are disclosed. The blade structure includes a blade root, a blade tip, and a first vertex and a second vertex between the blade root and the blade tip. The blade bends from blade root to the first vertex, the blade tip and then bends from the blade tip to the second vertex and back to the blade root to form a hollow structure. The ceiling fan with the blade structure not only provides air modulating function but also has unique modeling. | 04-25-2013 |
20130136613 | PROPELLER/IMPELLER BLADE APPARATUS - A medium mover/reactionary surface can be used a propeller, impeller, wind generator blade, mixer and the like. The blade design has a shape that pulls against itself under load to maintain its intended shape. The blade design includes one or more generally flat or contoured strip-like sections. These strip-like sections can be attached at their centers to a hub and at the tips to create rake and pitch. | 05-30-2013 |
20130302172 | SPACE FRAME STRUCTURE - A structure comprising a space frame including a plurality of strut sections which cross at one or more locations within the space frame to define a node at each respective crossing location, wherein the strut sections are laminates comprising a plurality of ply layers, and wherein the ply layers of the crossing strut sections are interleaved at the node(s). Also a method of forming the structure. Also An aerofoil structure, comprising a space frame defining a cage adapted to receive upper and lower covers so as to form upper and lower aerodynamic surfaces of the aerofoil, and at least one spar extending generally spanwise across the structure, wherein the spar includes a spar web and upper and lower spar caps, and wherein the spar web is disposed on one of an interior or exterior side of the cage, and the spar caps are attached to the other of the interior or exterior side of the cage. | 11-14-2013 |
20150017013 | TURBO-MACHINE IMPELLER MANUFACTURING - A method of manufacturing a turbo-machine impeller, which includes a hub and a plurality of blades, using powder material in an additive-manufacturing process. The method includes: applying energy to the powder material by way of a high energy source, and solidifying the powder material. At least one bulky portion of the hub is irradiated such that the powder material solidifies in a lattice structure surrounded by an outer solid skin structure enclosing the lattice structure. | 01-15-2015 |
20160024931 | BLADE WITH BRANCHES FOR AN AXIAL-FLOW TURBOMACHINE COMPRESSOR - The invention relates to a blade of a compressor or of an axial-flow turbomachine. The blade comprises a joining airfoil, or main airfoil, extended by branches, or auxiliary branch airfoils. The branches are adjacent and extend the joining airfoil radially. The branches form a row over the circumference and comprise faces facing one another. The branches comprise joining edges connected to the joining airfoil and are coincident or joined so as to form a circumferential material continuation between the adjacent branches. The leading edges and the trailing edges of the branches are a continuation of the leading edges and the trailing edges of the joining airfoil. The branch airfoils offer more anchoring points for a blade. The overlap of the branch airfoils strengthens the edges of the joining airfoil, which can thus be formed thinner. The blade comprises a fixing platform connected to the branch airfoils. | 01-28-2016 |
20160024932 | AXIAL TURBOMACHINE COMPRESSOR BLADE WITH BRANCHES AT THE BASE AND AT THE HEAD OF THE BLADE - The invention relates to a blade of an axial turbomachine comprising an airfoil which extends radially and a first set of branches or divisions, which radially extend a radial end of the airfoil, and a second set of branches which radially extend the other of the radial ends of the airfoil and which are offset over the circumference of the turbomachine. The branches extend axially along the entire length of the airfoil. The sets have different numbers of branches. The branches further occupy the channel of the turbomachine and further counteract debris in the event of intake. | 01-28-2016 |
20160047248 | BLADE - A composite fan blade for a gas turbine engine, the blade comprises a root portion for connecting the blade to a hub and an aerofoil portion. The aerofoil portion comprises an external cover formed from a non-metallic material and an internal structure enclosed within the cover. The internal structure comprises a plurality of support members extending generally from a pressure side of the internal structure to a suction side of the internal structure, and wherein the plurality of support members define a plurality of cells or channels. | 02-18-2016 |
20220135195 | PROPELLER - A propeller having a plurality of blades extending radially outward from a hub, the blades forming a loop. Each loop having an intake portion, an exhaust portion and a tip portion extending radially outward from the hub and a gap between the intake root and the exhaust root. The tip portion of each of the blades is 30%-75% of the blade, the tip portion beginning at a first deviation from zero of the roll value and extending to 90 degrees, wherein roll value is zero in a plane parallel to the hub axis, and wherein the blades have a vertical angle between −45 degrees and 45 degrees throughout. | 05-05-2022 |
20110171036 | WIND TURBINE ROTOR BLADE AND WIND-GENERATING WIND TURBINE - A wind turbine rotor blade having an outer skin material made of fiber-reinforced plastic, a sheer web, and a trailing edge reinforcing material made of fiber-reinforced plastic which forms a trailing edge, wherein the trailing edge reinforcing material includes a first recess in which a trailing edge side end of the outer skin material is accommodated, and a second recess in which a trailing edge side of an overlay is accommodated, a third recess in which a leading edge side of the overlay is accommodated is formed in a trailing edge side tip end of the outer skin material, and the tip end of the outer skin material is fixed to the first recess through an adhesive. | 07-14-2011 |
20110274552 | WIND TURBINE BLADE - The invention relates to a wind turbine blade formed by outer lateral skins ( | 11-10-2011 |
20140119934 | Rotating circular airfoil and propeller system - A rotating circular airfoil system ( | 05-01-2014 |
20140161622 | PROPELLER - A propeller having a central post to which one or more blades are connected. The blades are disposed and configured to pull air in from the propeller's sides toward the propeller's axis of rotation to create pressure in an area in the vicinity of the center of the propeller's rotating axis for generating thrust. | 06-12-2014 |
416227000 | Propeller and non-mixers | 4 |
20090191063 | LIGHTWEIGHT COMPOSITE TRUSS WIND TURBINE BLADE - A lightweight wind turbine blade formed with a truss support structure assembly of composite truss joints including composite spar and cross members attached to and supporting in spaced relation a spine of lightweight rib panels. The rib panels are oriented in parallel spaced relation from one another and individually molded with perimeters defining individual areas of curvature for the finished blade assembly. The truss support structure is covered with a lightweight fiberglass or hardened fabric skin attached to and fitted on respective rib panel edges forming an airfoil structure. | 07-30-2009 |
20090196757 | LIGHTWEIGHT COMPOSITE TRUSS WIND TURBINE BLADE - A lightweight wind turbine blade formed with a truss support structure assembly of composite truss joints including composite spar and cross members attached to and supporting in spaced relation a spine of lightweight rib panels. The rib panels are oriented in parallel spaced relation from one another and individually molded with perimeters defining individual areas of curvature for the finished blade assembly. The truss support structure is covered with a lightweight fiberglass or hardened fabric skin attached to and fitted on respective rib panel edges forming an airfoil structure. | 08-06-2009 |
20090202356 | VERTICAL AXIS ROTOR-TYPE WIND TURBINE - The invention refers to the field of wind power engineering, particularly to the vertical axis rotor-type wind turbines, which can be used for drive of electric generators or other using equipment of mechanical energy. The rotor-type wind turbine contains a central vertical shaft, mounted in a hollow elongated supporting column, and rotor structure, comprising two lattice-type blocks with power elements—the lattice-type stacks of aerodynamic blades. Each of the lattice-type blocks is carried by two corresponding lattice-type arms. When using the wind turbine two-block structure, the blocks are positioned by 180° to each other. The end parts of the aerodynamic lattice-type blades in blade blocks are fastened in relevant upper and lower shroud flanges. Each blade block forms the lattice and inter-blade channels so that the efficiency of utilization of the energy of the wind blowing along the inter-blade channels is determined as the sum of thermodynamic component and kinetic component of the factor of utilization kinetic energy of wind. Moreover, the design of vertical-axis wind turbine provided with lattice-type blade blocks and inter-blade channels ensure the rotation of the rotor under the impact of air flux even at low wind velocities. | 08-13-2009 |
20100074757 | SWIRLER VANE - A vane used on a swirler is provided. The vane includes a thin end and a broad end, the broad end has sharp edges and is arranged on the outside of the swirler, the thin end is arranged on the inside of the swirler. The vane also includes at least one swirl slot side profile, the at least one swirl slot side profile includes a unit providing turbulence to an air flow. | 03-25-2010 |
20100189565 | SECTIONAL VANE FOR VERTICAL AXIS WIND POWER GENERATOR - A sectional vane for vertical axis wind power generator includes a frame unit and a plurality of vane units. The frame unit is fixedly mounted to a main shaft of the wind power generator, and includes an upper frame member and at least one lower frame member. The upper and lower frame members are provided on inner side with an upper and a lower guide rail, respectively. The vane unit includes a vane body having an upper and a lower guide channel provided on a top and a bottom, respectively, corresponding to the upper and the lower guide rail. The vane units are assembled to the frame unit between the upper and the lower frame member through engagement of the guide channels with the guide rails. The sectional vane can be varied in height and area by providing different numbers of lower frame members and vane units. | 07-29-2010 |
20100260612 | WIND TURBINE BLADE AND METHOD OF CONSTRUCTING SAME - A wind turbine blade including a number of segments attached together end-to-end in a predetermined arrangement so that the respective covering subassemblies of the segments cooperate to form a substantially smooth surface of the wind turbine blade. Each segment includes a number of fiber tubes extending along preselected lengths of the segment respectively, the fiber tubes being laterally spaced apart from each other respectively to define gaps therebetween. The segment also includes a covering subassembly at least partially supported by the fiber tubes and at least partially defining an internal cavity. | 10-14-2010 |
20110123345 | Horizontal axis wind turbine rotor assembly with lifting body rotor blades - A horizontal axis wind turbine rotor assembly utilizes rotor blades having the aerodynamic characteristics of low aspect ratio lifting bodies. The aerodynamic characteristics of low aspect ratio lifting bodies at typical operating wind velocities permits high energy conversion efficiencies throughout a wide range of wind speeds. | 05-26-2011 |
20120034091 | AEROFOIL, AN AEROFOIL SUB-ASSEMBLY AND A METHOD OF MAKING THE SAME - An aerofoil sub-assembly of a blade, in particular an aerofoil blade for a gas turbine engine. A multi-layer construction including first and second skin panels which together define the external surfaces of the aerofoil and aerofoil leading and trailing edges. Between the skin panels at least there is at least one web-forming membrane which has a multiplicity of fingers trapped between the first and second panels at one of the edges and which extend away from the edge region. The fingers each have “dog-leg” shapes which are overlaid immediately behind the blade leading edge to form a transition zone providing additional support to resist crumpling of the hollow blade in the event of an external foreign object striking the leading edge. | 02-09-2012 |
20120121429 | Concentric ring wind turbine - A wind turbine for generating electrical power, the turbine having a rotating rotor assembly mounted onto a support structure, the rotor assembly having a rotating axle member, a plurality of rotating ring pair assemblies, each ring pair assembly having an inner ring member, an outer ring member and a plurality of blade members joining the inner ring to the outer ring, and a plurality of stay members connecting the ring members to the axle member in a concentric manner. | 05-17-2012 |
20120201687 | VERTICAL AXIS WIND TURBINE BLADE AND ITS WIND ROTOR - A vertical axis wind turbine comprising blade(s) characterized in an airfoil cross section, wherein the top end and the bottom end of said blade(s) are rotationally off-set from each other, twisted up with a vertical line vertical to the horizontal plane. | 08-09-2012 |
20120213641 | FLUID ENERGY CONVERTER - A fluid energy converter includes: a rotatable U-shaped rim rack having a raised along-edge wall forming a rail, a rotatable cylindrical frame and a plurality of vertical rectangular blades uniformly distributed and rotatably mounted in the frame. Each blade includes rollers alternately sliding in the recessed rail. The U-shape of the rim rack forms a hollow chamber in which a portion of the frame is received. The blades mounted in the frame are allowed to revolve about an arbor of the frame and at the same time, with the rollers being guided by the rail of the rim rack, the blades spin about their own axes. Instead of mechanical control, the rail formed in the rim rack is defined by a curve that has unique mathematic characteristics to set each blade to an optimum angle for receiving wind power so as to reduce resistance and better action of force thereon. | 08-23-2012 |
20130101427 | BLADE STRUCTURE AND CEILING FAN HAVING THE SAME - A blade structure and ceiling fan having the same are disclosed. The blade structure includes a blade root, a blade tip, and a first vertex and a second vertex between the blade root and the blade tip. The blade bends from blade root to the first vertex, the blade tip and then bends from the blade tip to the second vertex and back to the blade root to form a hollow structure. The ceiling fan with the blade structure not only provides air modulating function but also has unique modeling. | 04-25-2013 |
20130136613 | PROPELLER/IMPELLER BLADE APPARATUS - A medium mover/reactionary surface can be used a propeller, impeller, wind generator blade, mixer and the like. The blade design has a shape that pulls against itself under load to maintain its intended shape. The blade design includes one or more generally flat or contoured strip-like sections. These strip-like sections can be attached at their centers to a hub and at the tips to create rake and pitch. | 05-30-2013 |
20130302172 | SPACE FRAME STRUCTURE - A structure comprising a space frame including a plurality of strut sections which cross at one or more locations within the space frame to define a node at each respective crossing location, wherein the strut sections are laminates comprising a plurality of ply layers, and wherein the ply layers of the crossing strut sections are interleaved at the node(s). Also a method of forming the structure. Also An aerofoil structure, comprising a space frame defining a cage adapted to receive upper and lower covers so as to form upper and lower aerodynamic surfaces of the aerofoil, and at least one spar extending generally spanwise across the structure, wherein the spar includes a spar web and upper and lower spar caps, and wherein the spar web is disposed on one of an interior or exterior side of the cage, and the spar caps are attached to the other of the interior or exterior side of the cage. | 11-14-2013 |
20150017013 | TURBO-MACHINE IMPELLER MANUFACTURING - A method of manufacturing a turbo-machine impeller, which includes a hub and a plurality of blades, using powder material in an additive-manufacturing process. The method includes: applying energy to the powder material by way of a high energy source, and solidifying the powder material. At least one bulky portion of the hub is irradiated such that the powder material solidifies in a lattice structure surrounded by an outer solid skin structure enclosing the lattice structure. | 01-15-2015 |
20160024931 | BLADE WITH BRANCHES FOR AN AXIAL-FLOW TURBOMACHINE COMPRESSOR - The invention relates to a blade of a compressor or of an axial-flow turbomachine. The blade comprises a joining airfoil, or main airfoil, extended by branches, or auxiliary branch airfoils. The branches are adjacent and extend the joining airfoil radially. The branches form a row over the circumference and comprise faces facing one another. The branches comprise joining edges connected to the joining airfoil and are coincident or joined so as to form a circumferential material continuation between the adjacent branches. The leading edges and the trailing edges of the branches are a continuation of the leading edges and the trailing edges of the joining airfoil. The branch airfoils offer more anchoring points for a blade. The overlap of the branch airfoils strengthens the edges of the joining airfoil, which can thus be formed thinner. The blade comprises a fixing platform connected to the branch airfoils. | 01-28-2016 |
20160024932 | AXIAL TURBOMACHINE COMPRESSOR BLADE WITH BRANCHES AT THE BASE AND AT THE HEAD OF THE BLADE - The invention relates to a blade of an axial turbomachine comprising an airfoil which extends radially and a first set of branches or divisions, which radially extend a radial end of the airfoil, and a second set of branches which radially extend the other of the radial ends of the airfoil and which are offset over the circumference of the turbomachine. The branches extend axially along the entire length of the airfoil. The sets have different numbers of branches. The branches further occupy the channel of the turbomachine and further counteract debris in the event of intake. | 01-28-2016 |
20160047248 | BLADE - A composite fan blade for a gas turbine engine, the blade comprises a root portion for connecting the blade to a hub and an aerofoil portion. The aerofoil portion comprises an external cover formed from a non-metallic material and an internal structure enclosed within the cover. The internal structure comprises a plurality of support members extending generally from a pressure side of the internal structure to a suction side of the internal structure, and wherein the plurality of support members define a plurality of cells or channels. | 02-18-2016 |
20220135195 | PROPELLER - A propeller having a plurality of blades extending radially outward from a hub, the blades forming a loop. Each loop having an intake portion, an exhaust portion and a tip portion extending radially outward from the hub and a gap between the intake root and the exhaust root. The tip portion of each of the blades is 30%-75% of the blade, the tip portion beginning at a first deviation from zero of the roll value and extending to 90 degrees, wherein roll value is zero in a plane parallel to the hub axis, and wherein the blades have a vertical angle between −45 degrees and 45 degrees throughout. | 05-05-2022 |
20110171036 | WIND TURBINE ROTOR BLADE AND WIND-GENERATING WIND TURBINE - A wind turbine rotor blade having an outer skin material made of fiber-reinforced plastic, a sheer web, and a trailing edge reinforcing material made of fiber-reinforced plastic which forms a trailing edge, wherein the trailing edge reinforcing material includes a first recess in which a trailing edge side end of the outer skin material is accommodated, and a second recess in which a trailing edge side of an overlay is accommodated, a third recess in which a leading edge side of the overlay is accommodated is formed in a trailing edge side tip end of the outer skin material, and the tip end of the outer skin material is fixed to the first recess through an adhesive. | 07-14-2011 |
20110274552 | WIND TURBINE BLADE - The invention relates to a wind turbine blade formed by outer lateral skins ( | 11-10-2011 |
20140119934 | Rotating circular airfoil and propeller system - A rotating circular airfoil system ( | 05-01-2014 |
20140161622 | PROPELLER - A propeller having a central post to which one or more blades are connected. The blades are disposed and configured to pull air in from the propeller's sides toward the propeller's axis of rotation to create pressure in an area in the vicinity of the center of the propeller's rotating axis for generating thrust. | 06-12-2014 |