| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 416235000 | Irregular, flanged or channel forming blade surface | 74 |
| 20080219852 | Fluid-flow machine and rotor blade thereof - A fluid-flow machine, especially for an aircraft engine, includes a rotor having rotor blades | 09-11-2008 |
| 20080232972 | BLADE FIXING FOR A BLADE IN A GAS TURBINE ENGINE - The blade fixing comprises a firtree having a width between two opposite surfaces, each defining a plurality of successive necks separated from one another by arcuate lobes. Each of the opposite surfaces is substantially flat and substantially parallel to the other at the narrowest point of a first one of the necks that is closest to the platform. | 09-25-2008 |
| 20100104448 | FLOW RESTRICTIVE EDGE PROFILE EXHIBITED UPON A SURFACE OF A FLUID PROPELLED/PROPELLING IMPLEMENT - A flow restrictive edge profile applied to a fluid propelled/propelling implement and for creating increased driving force as a blade interacts with a fluid medium. An arcuate blade face pattern, including such as a “horseshoe” or modified “U” shape profile, is applied to one or two opposite faces of an oar design, with a deepened and inner extending connecting (arcuate) edge establishing a maximum of resistance (and a corresponding minimization of fluid losses) when traveling through the fluid medium. This in turn maximizes the amount of driving efficiency (e.g. thrust) to the article, such as during it being physically translated through a water medium or acted upon by a wind stream medium. The flow restrictive edge profile also contemplates application into one more blades associated with such as a rotating propeller or a driven windmill. | 04-29-2010 |
| 20110091327 | Turbines And Turbine Blade Winglets - A turbine blade includes a body having a leading edge, a trailing edge, a pressure side, a suction side, and a tip region, and a winglet arranged on the pressure side of the body in the tip region extending from a point in the tip region down stream of the leading edge to the trailing edge. | 04-21-2011 |
| 20110103966 | FLOW BALANCING SLOT - A cover of an airfoil having opposing pressure and suction sides of a rotatable turbine stage to prevent fluid from crossover-flowing from a pressure side of a leading airfoil to a suction side of a trailing airfoil is provided. The cover includes pressure and suction side edge portions, one of which having a shape that is discontinuous relative to that of a complementary one of suction and pressure side edge portions of an aft cover of a corresponding one of a trailing and a leading airfoil, respectively. | 05-05-2011 |
| 20110182746 | BLADE FOR A TURBO DEVICE WITH A VORTEX-GENERATOR - A blade construction for a turbo device, preferably a blade array of a low-pressure turbine, is disclosed. On the inlet-side profile surface of the blade a vortex generator is arranged downstream from the speed maximum. The vortex generator is formed by a surface undulation with at least one wave, the wave tail of which runs in the form of a wave trough and/or a wave peak in the blade vertical direction. | 07-28-2011 |
| 20110223033 | ACTUATABLE SURFACE FEATURES FOR WIND TURBINE ROTOR BLADES - A rotor blade for a wind turbine is disclosed. The rotor blade may generally include a shell having a pressure side and a suction side. The shell may define an opening in at least one of the pressure and suction sides. The rotor blade may also include a base and at least two surface features spaced apart along the outer perimeter of the base. The base may generally be movable relative to the opening between a recessed position and an actuated position. Additionally, the base may be rotatable within the shell in order to adjust which of the surface features is received within the opening when the base is moved to the actuated position. | 09-15-2011 |
| 20120014803 | TURBINE BLADE HAVING MATERIAL BLOCK AND RELATED METHOD - A turbine blade including a root section at an end of the turbine blade, a first airfoil section adjacent to the root section, and a tip section adjacent to the airfoil section and including a material block that is incongruous with the airfoil section. A midspan section may also include a material block. Each material block can be selectively machined to customize the length of the turbine blade and the position of a tip shroud connection or midspan connection. The turbine blade can be sized for retrofitting last stage blades of older turbines. A radial position of the root mounts for the turbine blade may also be adjusted to provide further customization. | 01-19-2012 |
| 20120100003 | IMPELLER AND ROTARY MACHINE - An impeller of a rotary machine, in which the direction of flow gradually changes from an axial direction to a radial direction as it goes from the inside in the radial direction of a fluid flow passage to the outside in the radial direction thereof, includes: a hub surface constituting at least a portion of the fluid flow passage; a blade surface constituting at least a portion of the fluid flow passage; and a bulge that bulges toward the inside of the fluid flow passage at a corner where the hub surface, which is located at a rear half that is one of a front half on an inlet side of the fluid flow passage and the rear half on an outlet side thereof, comes in contact with the blade surface. | 04-26-2012 |
| 20120141287 | WIND TURBINE ROTOR BLADE JOINT - A joint for connecting a first blade segment and a second blade segment of a wind turbine rotor blade is disclosed. The joint includes a body, the body including an outer surface and an inner surface. The outer surface has an aerodynamic contour that generally corresponds to an aerodynamic contour of the first blade segment and the second blade segment. The body includes a pressure side and a suction side extending between a leading edge and a trailing edge. In some embodiments, the joint further includes a channel defined in the outer surface of the body. The channel includes a generally continuous base wall extending between opposing sidewalls. The inner surface includes the base wall. In other embodiments, the joint further includes a channel defined in the body, and a shell extending from the body in a generally span-wise direction. | 06-07-2012 |
| 20120156051 | WIND TURBINE BLADE - A wind turbine blade is described wherein the blade comprises a hinged flap provided at the leading edge of the blade. The flap is arranged to hinge when the angle of attack of the incident airflow falls below a pre-defined angle, so that the aerodynamic profile of the blade is altered to reduce the magnitude of the negative lift coefficient of the blade. This reduces strain on the blade in such conditions, and associated fatigue loads on the blade and the wind turbine structure. The flap utilises simple biasing means, and does not require complicated sensor or actuation systems. | 06-21-2012 |
| 20120171043 | FAN AND IMPELLER THEREOF - An impeller includes a hub and a plurality of blades. The blades are connected with the hub. Each blade includes a base part connected with the hub and a tip part opposed to the base part. The thickness of the tip part of the blade is greater than that of the base part of the blade. In addition, an airflow-guiding part is disposed at the tip part of the blade. | 07-05-2012 |
| 20120189457 | Propeller slipstream enhancer - The invention relates a fluid or air propeller propulsion apparatus using modified state of the art propeller that reduces the typical propeller slipstream disc contraction at the propeller tips, by simply adding a novel channel or trough on the back surface spanwise midway between the leading edge and trailing edge. A portion of the air or fluid flowing over the back face of propeller blade is raked off and collected in the channel during rotation of the propeller, wherein the fluid or air is acted upon by centrifugal force varying directly with the propeller speed causing the fluid or air to be accelerated thru the channel or trough to the trailing edge of the propeller. This additional flow increases the propeller capacity additional jetting action bootstrapping causing the propeller to turn more easily, all of which increases the propeller thrust and efficiency as much as 10 percent. | 07-26-2012 |
| 20120189458 | ROTOR BLADE - A rotor blade has a radially extending aerofoil body having pressure and suction sides. The rotor blade further has squealer tip. The squealer tip includes a peripheral wall surrounding a cavity which is open at the radially outward end of the blade and at the trailing edge of the aerofoil body. The peripheral wall has at least one first region which extends radially from the aerofoil surface which has a first outer surface. The peripheral wall further has, along at least part of at least one of the pressure and suction sides, at least one second region inclined outwardly of the cavity with respect to the radial direction of the blade which has a second outer surface which extends obliquely outwardly of the blade. A radially outer portion of the second outer surface turns towards the radial direction to truncate the outward extension of the second outer surface. | 07-26-2012 |
| 20120201688 | BLADE CHANNEL HAVING AN END WALL CONTOUR AND A TURBOMACHINE - A blade channel having a not-axially-symmetric end wall contour in a turbomachine is disclosed, the end wall contour having at least one individual contour in the form of an elevation, on the pressure side, and at least three individual contours in the form of two recesses and one elevation, on the suction side, the elevation being situated between the recesses in the flow direction; a turbomachine having a plurality of blade channels of this type is also disclosed. | 08-09-2012 |
| 20120201689 | WIND TURBINE BLADE WITH LONGITUDINALLY EXTENDING FLOW GUIDING DEVICE HAVING A PLATE-SHAPED ELEMENT - A wind turbine blade ( | 08-09-2012 |
| 20120201690 | WIND TURBINE BLADE HAVING A FORWARDLY ORIENTED FLOW GUIDING DEVICE - A wind turbine blade with a flow guiding device attached to a profiled contour on a pressure side of the blade is described. The flow guiding device has a front surface facing toward an oncoming airflow and comprises at least a first portion, which is angled towards the oncoming airflow and a leading edge of the wind turbine blade. | 08-09-2012 |
| 20120224974 | TURBINE ROTOR BLADE AND TURBO MACHINE - A rotor blade includes a blade main body having a proximal end connected to the blade root, and a tip shroud connected to a tip end of the blade main body so as to constitute a part of an annular shroud, a tip end side of a leading edge of the blade main body is made continuous to an outside surface of the tip shroud via a curved portion curved toward a trailing edge, fillets are provided between the tip end of the blade main body and an inside surface of the tip shroud, and the curved portion is located closer to the leading edge than the fillets, whereby the turbine rotor blade and the turbo machine can realize weight reduction and suppress performance degradation. | 09-06-2012 |
| 20120230833 | TURBOMACHINE COMPONENT - A turbomachine component includes a basic component including a first outer wall having a first joint face. An additional part includes a second outer wall having a second joint face, wherein the first and the second wall enclose an internal cavity, and wherein the first and the second joint faces are joined together between the basic component and the additional part. At least one wall-like intermediate piece is disposed in at least one of the basic component and the additional part and extends from the respective outer wall into the internal cavity, the at least one wall-like intermediate piece including a cutout having a transition contour that deviates from a straight line and is disposed at at least one transition between the at least one wall-like intermediate piece and the outer wall so as to relieve at least one of a mechanical and a thermal stress. | 09-13-2012 |
| 20120244007 | BLADED ROTOR - A rotor, such as a fan of a gas turbine engine, comprises blades | 09-27-2012 |
| 20120269644 | Spoiler for a wind turbine rotor blade - A spoiler for a rotor blade of a wind turbine includes a spoiler body and at least one mounting band arranged along a longitudinal edge of the spoiler body for mounting the spoiler onto a surface of the rotor blade. The at least one mounting band adapts to a curvature of the rotor blade surface. The spoiler body and the at least one mounting band are formed as a single entity. Further, a rotor blade for a wind turbine includes such a spoiler mounted onto a surface of the rotor blade. Further, a wind turbine includes a number of rotor blades attached to a hub, wherein at least one rotor blade includes such a spoiler mounted onto a surface of the rotor blade. | 10-25-2012 |
| 20120328447 | BLADE OF A TURBOMACHINE - A blade of a turbomachine or a flying machine includes a blade airfoil extending in a radial direction from a blade root to a blade tip. The blade airfoil has an inflow-side leading edge, an outflow-side trailing edge, a pressure side and a suction side. A surface of each of the pressure side and the suction side extends between the inflow-side leading edge and the outflow-side trailing edge. The blade tip has an end face with a camber line that extends from the inflow-side leading edge to the outflow-side trailing edge. At least one tip-side recess forms a depression from the end face into the blade airfoil, the depression extending continuously from the pressure side to the suction side and having a partial length of the camber line. | 12-27-2012 |
| 20130089430 | TURBOMACHINE COMPONENT HAVING A FLOW CONTOUR FEATURE - A turbomachine component includes a main body having a gas path surface configured to be exposed to gases passing along a turbomachine gas path, a non gas path surface configured to be arranged in a turbomachine wheelspace outside the turbomachine gas path, and a non-axisymetric flow contour feature extending from the gas path surface to the non gas path surface. | 04-11-2013 |
| 20130108456 | BLADE FOR A GAS TURBINE ENGINE | 05-02-2013 |
| 20130129520 | A WIND TURBINE BLADE - A wind turbine blade is provided. The wind turbine blade has multiple vortex generators, each projecting from a surface of the blade and having a predetermined length. The vortex generators are arranged on a strip. The width of the strip is several times larger than the length of a vortex generator. | 05-23-2013 |
| 20130136617 | MIXING IMPELLER HAVING CHANNEL-SHAPED VANES - The present invention relates to a mixing impeller for an agitator. The impeller has a body that may be disc-shape. The impeller has a plurality of radially spaced-apart, longitudinally curved, channel-shaped outer vanes connected to and extending outwards from the body in a plurality of different directions. A first one of the outer vanes has a distal end at least partially facing above the body. A second one of the outer vanes has a distal end at least partially facing below the body. A third one of the outer vanes has a distal end at least partially facing tangential to the body. | 05-30-2013 |
| 20130136618 | Blade Skirt - A blade of a gas turbine engine is provided having an airfoil, a platform, a shank, a dovetail, and a skirt. The airfoil may extend distally from the platform, and the shank may extend proximally from the platform. The dovetail may also be provided to extend proximally from the shank. The skirt may be disposed on an aft side of the shank and may extend from the shank in a direction at least partially axially aft from the shank. | 05-30-2013 |
| 20130136619 | BLADING - A blading for a turbomachine, particularly for a gas turbine, wherein thickened areas and depressions formed and disposed on a lateral wall having a plurality of blades such that at least one depression is disposed on a blade pressure side and at least one thickened area is disposed on a blade suction side for each blade of the plurality of blades. | 05-30-2013 |
| 20130156593 | SYSTEM AND METHOD FOR ROOT LOSS REDUCTION IN WIND TURBINE BLADES - A wind turbine blade includes a root region. A first extension (LEX) is attached to the leading edge side of the root region while a trailing edge strake (TES) is attached to the trailing edge side of the root region. The LEX and TES each include an outer profile that becomes more pronounced relative to their respective locations in the root region as the root region of the wind turbine blade morphs from a substantially cylindrical shape to a substantially airfoil shape. The LEX provides both optimal angle of attack and lift generation in the root region, while the TES mitigates airflow separation and enhances airfoil lift in the root region. | 06-20-2013 |
| 20130224037 | COMPOUND AIRFOIL - An airfoil is provided that has an arrangement that improves the lift of an airfoil and that include surface features that change the performance of the airfoil. Protrusions are provided on the top surface of the airfoil such that channels are formed between adjacent protrusions that affect the flow of air there through. In an additional respect, indentations can be provided on the bottom surface of the airfoil that affect the flow of air there through. | 08-29-2013 |
| 20130259702 | FLATBACK SLAT FOR WIND TURBINE - An aerodynamic slat ( | 10-03-2013 |
| 20130294922 | Turbine System and Method - Some embodiments of a turbine system described herein provide a turbine that rotates in response to off-axis fluid flow, such as water flowing in a generally horizontal direction that is generally perpendicular to a vertical axis of rotation. The rotation of the turbine can drive a generator to output electrical energy. | 11-07-2013 |
| 20140003957 | WIND TURBINE ROTOR BLADE WITH A PROFILE WITH A THICK TRAILING EDGE | 01-02-2014 |
| 20140219810 | VORTEX GENERATOR ARRANGEMENT FOR AN AIRFOIL - A particular arrangement of vortex generators for an airfoil is described. The vortex generators are provided in pairs, preferably on a wind turbine blade, wherein by arranging the vortex generators according to specified characteristics, a surprising improvement in blade performance is provided over the prior art systems. | 08-07-2014 |
| 20140241898 | AUTOGENOUSLY WELDED IMPELLER OF A TORQUE CONVERTER - A torque converter impeller is provided. The torque converter impeller includes an impeller shell and an impeller hub. The impeller shell and impeller hub are autogenously welded together such that the weld has a concave shape. A method of forming a torque converter impeller is also provided. | 08-28-2014 |
| 20150300317 | WIND TURBINE - The present invention relates to a method for mounting a rear edge ridge onto a rotor blade of a wind turbine, wherein the rotor blade has a pressure and a suction side and an essentially straight trailing edge. A tongue section projecting to the rear is provided at the trailing edge to form a step each to the pressure side and to the suction side in the area of the tongue section. The rear edge ridge or part thereof is then fitted onto the tongue section, so that it is flush with the suction side or pressure side, respectively, in the area of the step. | 10-22-2015 |
| 20150330226 | RADIAL TURBINE BLADE - An object is to provide a radial turbine blade that can reduce an impact loss of inflowing gas at a leading edge of the turbine blade and achieve a higher turbine efficiency, even in a case of a flow field corresponding to a low turbine operational velocity ratio U/C | 11-19-2015 |
| 20160017864 | VORTEX GENERATOR UNIT FOR A WIND TURBINE BLADE - A wind turbine blade vortex generator unit and a method for installing it, where a wind turbine blade has at least one series of vortex generator units formed of fins extending substantially perpendicular to the surface of the airfoil and substantially in a direction from the leading edge towards the trailing edge of the wind turbine blade. The vortex generator units each comprises a fin connected to an outer side of the fin base, and where the fin is delta shaped tapering from a trailing edge towards a leading edge and where each of the vortex generator units has a layer of adhesive on an inner side of the base that extends to an outermost periphery of the base. The vortex generator unit has exactly one fin, and the base has an airfoil shaped periphery with a rounded leading edge and a trailing edge. | 01-21-2016 |
| 416236000 | Ribbed or grooved | 27 |
| 20090041585 | IMPELLER FOR A COOLING FAN - An impeller ( | 02-12-2009 |
| 20090185911 | Systems and Methods Involving Localized Stiffening of Blades - Systems and methods involving localized stiffening of blades are provided. In this regard, a representative a gas turbine engine blade includes: a recess located in a surface of the blade; and material positioned at least partially within the recess such that the material provides a localized increase in stiffness of the blade. | 07-23-2009 |
| 20110091328 | Marine propeller with reverse thrust cup - A marine propeller with reverse thrust cup includes a propeller hub, propeller blades each having a leading blade face and a trailing blade face provided on the propeller hub and a reverse thrust cup provided in the trailing blade face of each of the propeller blades. | 04-21-2011 |
| 20130078106 | FAN BLADE CHANNEL TERMINATION - A fan blade has a main body extending between a leading edge and a trailing edge. Channels are formed into the main body from at least one open side. A plurality of ribs extend across the main body intermediate the channels. The fan blade has a dovetail, and an airfoil extending radially outwardly from the dovetail. The channels have a termination end adjacent a radially inner end of the ribs. The termination end is formed along a complex fillet with a first radius of curvature formed at the termination end, and a second radius of curvature merging into sides of the ribs. The second radius of curvature is greater than the first radius of curvature. | 03-28-2013 |
| 20130078107 | HOLLOW FAN BLADE CHANNEL CONFIGURATION TO REDUCE STRESS - A fan blade has a main body extending between a leading edge and a trailing edge. Channels are formed into the main body from an open side extending toward an opposed closed side. A plurality of ribs extending across the main body intermediate the channels, the fan blade has a dovetail, and an airfoil extending radially outwardly from said dovetail. A bottom surface of the channels is defined at the closed side of the channels. Sides of the channel merge into sides of the ribs, with a compound fillet at the bottom surface. A first radius of curvature is used along the bottom, and merging into at least a second radius of curvature at the sides. The first radius of curvature is larger than the second radius of curvature. | 03-28-2013 |
| 20130108457 | Wind turbine blade comprising a vortex-generator | 05-02-2013 |
| 20130149165 | ROTATING BLADE HAVING A RIB ARRANGEMENT WITH A COATING - The present invention relates to a rotating blade ( | 06-13-2013 |
| 20130236325 | BLADE TIP PROFILE - An airfoil includes a blade having a leading edge, a trailing edge, a pressure side, a suction side, a tip, and a scoop. The scoop extends along the tip of the blade. The scoop comprises a difference in a radial height of the blade from a pressure side to a suction side of the blade. The radial height of the blade at the pressure side is less than the radial height of the blade at the suction side. | 09-12-2013 |
| 20130236326 | BLADE POCKET DESIGN - An airfoil includes a blade having a pocket recess therein and one or more features disposed within the pocket recess. The one or more features are configured to disrupt pressure oscillations within the pocket recess. In another embodiment, a blade is disclosed having a first wall and a second wall. The first wall is disposed on a suction side of the blade and the second wall is disposed on a pressure side of the blade. The second wall is connected to the first wall at a leading edge of the blade. Together the first wall and the second wall form a portion of a pocket recess and the pocket recess is disposed asymmetrically with respect to a camber line of the blade. | 09-12-2013 |
| 20130302174 | ARCHIMDEAN SCREW APPARATUS - An Archimedean screw apparatus for use either in power generation or for the pumping or conveying of fluid material includes a screw body formed by a shaft and at least one helical flight that is located in a close-fitting channel structure. The screw body is rotatably mounted such that the flight is in frictional contact with in inner surface of the channel. The weight of the screw body is borne at least partially by the channel structure and is dissipated fully or partially along the length of channel structure. Hence, preferably the Screw both is either provided with only a single bearing located at one end of the shaft, the other end being left floating within the channel structure, or the screw body is not provided with any bearings and the shaft is connected directly to a drive mechanism or to part of a power generating apparatus. | 11-14-2013 |
| 20140017088 | CORRUGATED PANEL FOR WIND POWER GENERATOR BLADE - A corrugated panel for a wind power generator blade is provided. The corrugated panel for a wind power generator blade includes: a plurality of wrinkles that are coupled to one surface or the other surface of the wind power generator blade having an airfoil transverse section and that are formed in a length direction of the blade, wherein a gap and a height at a predetermined position of the plurality of wrinkles each have a value of a predetermined ratio to a chord length of the airfoil transverse section of the blade at the predetermined position, when the plurality of wrinkles are coupled to the blade. | 01-16-2014 |
| 20140093382 | WIND TURBINE ROTOR BLADE - Disclosed is a wind turbine rotor blade includes a root portion, an airfoil portion, a thickened zone extending outward from an inner hub end of the blade into the airfoil portion of the blade; and an airflow correction arrangement arranged on a pressure side of the blade over at least a portion of the thickened zone. The airflow correction arrangement includes a spoiler to increase blade lift and a vortex generator arranged between a leading edge and the trailing edge and realized to maintain an attached airflow between the vortex generator and the spoiler. A wind turbine with at least one such rotor blade is disclosed. An airflow correction arrangement for correcting the airflow over the pressure side of a wind turbine rotor blade for a region of the blade having a thickened zone is further disclosed. | 04-03-2014 |
| 20140119938 | PROPELLER FAN AND AIR CONDITIONER HAVING THE SAME - Provided is a propeller fan including a hub having an oval shape in an axial direction, a plurality of wings that extend from the hub, and at least one reinforcement rib that extends from the hub and is formed closer to a leading edge of each of the plurality of wings. Through this configuration, the propeller fan has blowing efficiency and stiffness, and the weight and material cost of the propeller fan can be reduced. | 05-01-2014 |
| 20140140856 | WIND TURBINE BLADE COMPRISING VORTEX GENERATORS - Disclosed is a wind turbine blade and a method for retrofitting a wind turbine blade, the wind turbine blade extending in a longitudinal direction along a pitch axis and having a tip end and a root end as well as a blade length, the wind turbine blade further comprising a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length extending there between, the profiled contour, when being impacted by an incident airflow generating a lift, wherein the suction side of the wind turbine blade is provided with a plurality of vortex generators positioned along a mounting line having a proximal end point nearest the root end and a distal end point nearest the tip end, wherein the mounting line is a concave line seen from the trailing edge of the wind turbine blade. | 05-22-2014 |
| 20140219811 | TWISTED GAS TURBINE ENGINE AIRFOIL HAVING A TWISTED RIB - A gas turbine engine blade ( | 08-07-2014 |
| 20140241899 | BLADE LEADING EDGE TIP RIB - A rotor blade for a gas turbine engine includes a leading edge tip rib projecting outwardly from an airfoil of the blade at a tip region thereof. The tip rib continuously surrounds a leading edge of the airfoil and extends rearwardly from the leading edge along respective pressure and suction side surfaces to thereby alter the blade tip leakage vortex structure and strength, resulting in a stage efficiency benefit. | 08-28-2014 |
| 20140286786 | AXIAL OR DIAGONAL FAN WITH TRIP EDGE ON THE ROTOR BLADE - An axial- or diagonal-fan has a fan wheel ( | 09-25-2014 |
| 20140286787 | BLADE FOR A WIND TURBINE HAVING A GUIDE VANE - One or more blades for a wind turbine have at least one guide vane ( | 09-25-2014 |
| 20140328692 | ATTACHMENT SYSTEM AND METHOD FOR WIND TURBINE VORTEX GENERATORS - A rotor blade assembly for a wind turbine includes a rotor blade having a pressure side, a suction side, a leading edge, and a trailing edge. A vortex generator accessory is mounted to either of the suction side or pressure side and includes a base portion and a protrusion member extending upwardly from the base portion. An attachment layer connects the base portion to the suction or pressure side. The attachment layer has a lower shear modulus than the base portion to allow for shear slippage between the base portion and the underlying suction or pressure side. | 11-06-2014 |
| 20140328693 | ROTOR BLADE ASSEMBLY HAVING VORTEX GENERATORS FOR WIND TURBINE - Rotor blade assemblies for wind turbines are provided. The rotor blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge each extending between a tip and a root. The rotor blade further defines a span and a chord. The rotor blade assembly further includes at least one vortex generator configured on at least one of the suction side or the pressure side of the rotor blade, the at least one vortex generator having an aspect ratio between approximately 4 and approximately 10. In another embodiments, the rotor blade assembly further includes at least one vortex generator configured on at least one of the suction side or the pressure side of the rotor blade, the at least one vortex generator having a length between approximately 4% and approximately 20% of a local chord. | 11-06-2014 |
| 20140334938 | AIRFLOW MODIFYING ASSEMBLY FOR A ROTOR BLADE OF A WIND TURBINE - A method and assembly for aligning airflow modifying elements on a rotor blade is disclosed. The airflow modifying assembly may be mounted onto a suction side surface or a pressure side surface of the rotor blade. Further, the airflow modifying assembly includes an alignment structure having a chord-wise extending face that may be fixed relative to the rotor blade at a predetermined position. The airflow modifying assembly further includes a first base having a root end, a tail end having an interconnecting profile, and a first plurality of airflow modifying elements. The root end is aligned with the chord-wise extending face such that the first base extends span-wise along the rotor blade. Additionally, the airflow modifying assembly includes at least one second base having a connector end with a complementary interconnecting profile and a plurality of airflow modifying elements, wherein the connector end is coupled to the tail end. | 11-13-2014 |
| 20150010407 | REDUCED NOISE VORTEX GENERATOR FOR WIND TURBINE BLADE - A vortex generating foil ( | 01-08-2015 |
| 20150118057 | MULTI-WALL GAS TURBINE AIRFOIL CAST USING A CERAMIC CORE FORMED WITH A FUGITIVE INSERT AND METHOD OF MANUFACTURING SAME - A multi-wall gas turbine airfoil ( | 04-30-2015 |
| 20150118058 | CHORD EXTENDERS FOR A WIND TURBINE ROTOR BLADE ASSEMBLY - In one aspect, a rotor blade assembly for a wind turbine may generally include a rotor blade extending lengthwise between a root and a tip. The rotor blade may include a pressure side and a suction side extending between a leading edge and a trailing edge. Additionally, the rotor blade assembly may include a chord extender having an attachment portion coupled to at least of the pressure side or the suction side and an extension portion extending outwardly from the attachment portion beyond the trailing edge. The extension portion may extend chordwise between a first end disposed adjacent to the trailing edge and a second end disposed opposite the first end. The extension portion may include a surface defined between the first and second ends. The extension portion may further include at least one stiffening rib projecting outwardly from the surface. | 04-30-2015 |
| 20150361951 | PRESSURE SIDE STALL STRIP FOR WIND TURBINE BLADE - A stall strip ( | 12-17-2015 |
| 20160024930 | TURBOMACHINE AIRFOIL - A turbomachine airfoil includes a base portion and a blade portion extending from the base portion to a tip portion defining a radial span dimension. The blade portion includes a leading edge, a trailing edge, a pressure side and a suction side. An axial chord dimension is defined between the leading edge and the trailing edge. At least one protuberance is provided on the pressure side. The at least one protuberance extends from about 10% of the axial chord dimension to about 90% of the axial chord dimension. | 01-28-2016 |
| 20160177968 | BLADE | 06-23-2016 |
| 416237000 | Angular or offset | 9 |
| 20080279692 | Stepped stator blade - A blade for a stator in a torque converter including a first face, which includes a first step, and a second face located substantially circumferentially opposite the first face. In one embodiment, the first face includes first and second disjointed or misaligned segments, and the first step connects the first and second segments. In another embodiment, the second face includes a second step. In yet another embodiment, the second face includes third and fourth disjointed or misaligned segments, and the second step connects the first and second segments. | 11-13-2008 |
| 20090220348 | TWIN-AIRFOIL BLADE WITH SPACER STRIPS - The invention relates to a blade possessing a leading edge and a trailing edge, the blade comprising a first airfoil possessing an inner face and an outer face extending between said leading edge and said trailing edge, a second airfoil possessing an inner face and an outer face extending between said leading edge and said trailing edge, and at least one spacer strip interconnecting said inner face of the first airfoil and said inner face of the second airfoil, said at least one strip extending to said trailing edge, the distance between the inner face of the first airfoil and the inner face of the second airfoil being of the same order of magnitude as the maximum thickness of the first or the second airfoil. | 09-03-2009 |
| 20110020133 | TORSION BLADE PIVOT WINDMILL - A pair of airfoil blades having a longitudinal axis coincident with one another. Each blade is bent at the center on the plane of the chord. Each blade has an airfoil tip blade placed at the outer most trailing edge. The blades are affixed by their root ends to opposite ends of a torsion shaft. The blade chords are offset from one another, which defines a blade pitch angle. The torsion shaft is journaled perpendicular through a driveshaft, whereas the rotation of the blades can transfer through the torsion shaft to the driveshaft and cause the driveshaft to turn, eliminating the need for a hub. The blades are adapted to pivot along with the torsion shaft. The blades lie in substantially the same plane, and are adapted for rotation in a plane orthogonal to the longitudinal axis of the driveshaft. Each blade has an airfoil shaped fluid gate valve disposed on the leading edge. | 01-27-2011 |
| 20110150662 | BLADE FAMILIES FOR TORQUE CONVERTERS - A blade family for torque converters with a first blade having a first shape and flow guiding surface and a second blade having a second shape and flow guiding surface. The first surface is different from the second surface and the first shape is the same as a portion of the second shape, or the second shape is the same as a portion of the second shape. In an example embodiment of the invention, at least one of the first or second blades includes holes or slots. In an example embodiment of the invention, the first blade includes more material than the second blade. The first and second blades may have respective mounting tabs, with the second blade having fewer mounting tabs than the first blade. Other example aspects of the present invention broadly comprise a torque converter with a plurality of first and/or second blades from the blade family. | 06-23-2011 |
| 20130045106 | ANGLED TRENCH DIFFUSER - An article is disclosed that includes a substrate having a first surface and a second surface and a coating disposed on the second surface. In addition, the article includes an angled trench at least partially defined in the coating. The angled trench may include a bottom surface, a first sidewall and a second sidewall disposed downstream of the first sidewall. The first and second sidewalls may extend from the bottom surface at an angle of less than about 60 degrees. Moreover, the article may include a plurality of holes defined between the first surface and the bottom surface. | 02-21-2013 |
| 20140086754 | PROPELLER FAN - A propeller fan may strongly draw the flow toward the inner circumferential side and greatly improve the pressure efficiency by degrading the tendency of the flow near the pressure surface to be inclined toward the outer circumferential side at the trailing edge of the blade. The blade is provided with a recessed portion raised toward a suction surface at a central portion of a trailing edge of the blade in a radial direction such that the recessed portion is open at least on a pressure surface of the blade, the recessed portion extending from the trailing edge toward a leading edge of the blade, and a cross section of the recessed portion taken in a radial direction is provided with a pair of lateral portions rising at a predetermined angle with respect to the suction surface and facing each other. The span-wise width of the recessed portion between the lateral portions increases as the recessed portion extends from an upstream side to a downstream side. | 03-27-2014 |
| 20140127030 | A TURBINE BLADE SYSTEM - A wind turbine blade system having a main blade having a root and a tip, and at least one secondary blade secured to or formed integrally with the main blade about the tip, the at least one secondary blade being shaped and dimensioned to form, when the main blade is rotated, a shroud circumscribing a swept area of the main blade in order to improve the airflow past the main blade during operation of the wind turbine. | 05-08-2014 |
| 20150044057 | MIXING IMPELLER - An impeller blade formed of a central base portion having a center axis. At least a pair of impeller blades is extended outwardly from the central base portion, with each impeller blade further including an extension. A leading edge is formed on each of the impeller blades, with each leading edge being defined by an outer periphery of the central base portion, and each leading edge having at least a portion that forms a continuous curve with a radius decreasing outwardly toward a radial tip of the corresponding impeller blade, wherein the continuous decreasing radius curve of each leading edge is formed by a portion of an ellipse centered on the center axis, a short axis of the ellipse being equal to a long axis thereof divided by approximately three and one-half. Each blade extension is projected from the corresponding impeller blade opposite of the leading edge. | 02-12-2015 |
| 20150316025 | Aerodynamic device for a rotor blade of a wind turbine - The invention relates to an arrangement ( | 11-05-2015 |
