Matches 1 - 50 out of 214 1 2 3 4 5 >


Match Document Document Title
US20140093390 COOLED TURBINE BLADE WITH LEADING EDGE FLOW REDIRECTION AND DIFFUSION  
A cooled turbine blade having a base and an airfoil, the base including cooling air inlet and an internal cooling air passageway, and the airfoil including an internal heat exchange path beginning...
US20140093388 COOLED TURBINE BLADE WITH LEADING EDGE FLOW DEFLECTION AND DIVISION  
A cooled turbine blade having a base and an airfoil, the base including cooling air inlet and an internal cooling air passageway, and the airfoil including an internal heat exchange path beginning...
US20130287584 PROPELLER BLADE WITH MODIFIED SPAR LAYUP  
According to one embodiment, a propeller blade includes a foam core and a structural layer formed of multiple layers that surrounds at least a portion of the foam core. The structural layer...
US20130149164 Method and Apparatus for Fabricating Large Scale Integrated Airfoils  
An airfoil is fabricated by assembling cured skins with spars having cured spar webs and uncured spar chords. The skins are bonded to the spars by curing the spar chords.
US20150198051 METHOD OF FORMING A STRUCTURAL CONNECTION BETWEEN A SPAR CAP AND A FAIRING FOR A WIND TURBINE BLADE  
A method of forming a structural connection between a spar cap 14 and an aerodynamic fairing 12 A composite comprising an uncured matrix and a compressible solid is applied between the spar cap...
US20140234114 WIND TURBINE BLADE WITH ASYMMETRICAL SPAR CAPS  
A wind turbine blade (10) with asymmetric spar caps (36,38). The blade includes a pressure side spar cap (36) having pressure side fibers (56) having a pressure side fiber diameter (54), the...
US20140275308 POLYMER FOAM HAVING AN ELEVATED MAXIMUM SERVICE TEMPERATURE  
Polymer foams incorporating fibrous ingredients are disclosed. The fibrous ingredients act as service temperature enhancing agents, increasing the maximum service temperature of the polymer foams...
US20130216388 BOX-SHAPED SHEAR WEB FOR WIND TURBINE BLADES AND METHOD OF MAKING  
A wind turbine blade includes a pressure side shell member with an internal side spar cap, and a suction side shell member with an internal side spar cap. A box-shaped shear web assembly spans...
US20120045344 HELICOPTER COMPOSITE BLADE SPAR AND METHOD  
A composite spar for a helicopter blade includes two or more layers of unidirectional laminate material. One or more upper plies of bi-directional laminate extend from an upper airfoil portion of...
US20090297356 METHOD OF REPLACING A COMPOSITE AIRFOIL  
A method of replacing a portion of a composite airfoil in a turbine. The method comprises the steps of providing a turbine with a plurality of composite airfoils mounted on a wheel. At least one...
US20130266452 PROPELLER BLADE WITH REINFORCED SPAR CORE  
A propeller blade spar core includes a leading edge spar foam section surrounded by a first structural layer, a trailing edge spar foam surrounded by a second structural layer, and a third...
US20090191062 ROTORCRAFT BLADE PROVIDED WITH A SPAR INCORPORATING A FASTENER ATTACHMENT, AND A METHOD OF FABRICATING SUCH A SPAR  
A rotorcraft blade is provided with a rigid attachment filler (1) and with a spar (40) that extends from a root (51) of the blade to a free end (52) of the blade, the attachment filler (1) having...
US20130129517 AEROGENERATOR BLADE AND MANUFACTURING METHOD THEREOF  
Aerogenerator blade and method of manufacturing thereof, the aerogenerator blade comprising an intrados shell, an extrados shell and a structural beam, the structural beam comprising a root spar,...
US20120211607 COMPOSITE STRUCTURE  
A composite structure has first and second sections, and a curved corner joining the first and second sections. The structure includes a stack of fibre-reinforced plies. First and second external...
US20130129507 Composite Propeller Spar  
A method and apparatus comprising a composite spar. The composite spar has a root section and a main section. The root section is closed and has a shape configured to be connected to a blade...
US20140294591 WIND TURBINE BLADE SHEAR WEB CONNECTION ASSEMBLY  
A wind turbine blade has upper and lower shell members with a respective spar cap configured on an internal face of the shell members. A shear web extends between the spar caps along a...
US20090010764 BLADE PROVIDED WITH A HORIZONTALLY-WOUND SPAR, AND A METHOD OF FABRICATING SUCH A SPAR  
The present invention relates to a rotorcraft blade (1) provided with a distributed spar (10) on a leading edge (4), a suction side (2), and a pressure side (3) of the blade, and the invention...
US20090196755 Modular Construction for Wind Turbine Blade  
A vertical axis wind turbine including a blade having a modular structure, comprising at least two connectable blade sections. Each section has an upper and lower panel with a cavity formed...
US20100021290 Ceramic matrix composite turbine engine vane  
A vane has an airfoil shell and a spar within the shell. The vane has an outboard shroud at an outboard end of the shell and an inboard platform at an inboard end of the shell. The shell includes...
US20090136355 SYSTEM AND METHOD FOR JOINING TURBINE BLADES  
A blade assembly including an outboard blade segment is provided. The outboard blade segment includes an outboard blade shell, first and second outboard bulkheads situated within the outboard...
US20090162208 MULTI-SEGMENT WIND TURBINE BLADE AND METHOD FOR ASSEMBLING THE SAME  
A multi-segment wind turbine blade comprises at least two blade segments. A first spar cap segment is attached to a first blade segment and a second spar cap segment is attached to a second blade...
US20100296941 OPTIMIZATION OF PREMIUM FIBER MATERIAL USAGE IN WIND TURBINE SPARS  
The use of premium material in the construction of wind turbine blades may provide increases in blade efficiency and enable the use of thinner blades. By providing a spar cap having a section of...
US20090202355 Replaceable blade tip shroud  
One embodiment of the present invention is a blade with a replaceable blade tip shroud that includes an airfoil shaped spar extending from a leading edge to a trailing edge between a root end and...
US20080226459 ROTOR BLADE FOR A BEARINGLESS ROTOR OF A ROTORCRAFT  
A rotor blade for a bearingless rotor of a rotorcraft includes a flapwise-flexible and lead-lag-flexible rotor blade attachment region, an inner rotor blade segment, and an outer rotor blade...
US20090148303 MAIN ROTOR BLADE WITH INTEGRAL TIP SECTION  
A main rotor blade assembly includes a tip spar which defines a tip spar non-straight form, an upper blade skin which defines an upper blade skin non-straight form adjacent to the tip spar...
US20090155086 ROTORCRAFT BLADE, A ROTORCRAFT ROTOR PROVIDED WITH SAID BLADE, AND A METHOD OF FABRICATING SAID BLADE  
A rotorcraft rotor blade (1) has a blade root (1′) and a free end opposite from the blade root (1′), the blade (1) being provided at least with a spar (2) laid flat on a suction-side face (3) and...
US20090226325 Composite Blade Root Structure  
A spar of a rotor blade having moderate depth transitions to a relatively much deeper shank over a relatively short distance. This rapid transition enables a low-weight blade root that is...
US20090087318 WIND TURBINE SPARS WITH JOINTED SHEAR WEBS  
A spar for a wind turbine blade includes at least one shear web extending between pressure and suction sides of the blade; and a joint, arranged substantially midway between ends of the shear web,...
US20140133995 PROPELLER BLADE WITH MODIFIED SPAR STIFFNESS  
A propeller blade includes a foam core, a structural layer formed of multiple layers that surrounds at least a portion of the foam core and at least one section of fibers formed separately from...
US20150064013 Systems and Methods of Constructing Composite Assemblies  
A composite assembly has an outer spar component having an outer spar component inner profile, an inner spar component having an inner spar component outer profile substantially complementary to...
US20080219851 INTEGRATED SHEAR WEBS FOR WIND TURBINE BLADES  
The present invention includes a method for fabricating elongated wind turbine blades and wind turbine blades formed by the method. The method includes providing a first shell reinforcing fiber...
US20090196756 Wind turbine blades and method for forming same  
A method of forming a wind turbine blade includes forming a root portion, a tip portion, and an airfoil portion extending radially outward from the root portion to the tip portion. The method also...
US20150050156 INFUSED SPAR CAP USING A LOW VISCOSITY MATRIX MATERIAL  
Embodiments of the present application generally provide for wind turbine blade spar caps comprising composite materials prepared using a low viscosity resin system and a high density fabric and...
US20090140527 WIND TURBINE BLADE STIFFENERS  
A blade for a wind turbine, includes a shell; a spar member for supporting the shell; and a stiffener, secured to an inside surface of the shell, for enhancing a buckling resistance of the blade.
US20110305580 Spar and shell blade with segmented shell  
A turbine rotor blade with a spar and shell construction, where the shell has an airfoil shape and is formed of two shell segments with an upper shell half and a lower shell half. The upper shell...
US20140119915 WIND TURBINE WITH AN OFFSET SUCTION SIDE  
Wind turbine having a wind turbine tower, a nacelle provided on the wind turbine tower, a rotor hub rotatably mounted to the nacelle, and one or more wind turbine blades having a root end to be...
US20100080687 Multiple Piece Turbine Engine Airfoil with a Structural Spar  
A multiple piece turbine airfoil having an outer shell with an airfoil tip that is attached to a root with an internal structural spar is disclosed. The root may be formed from first and second...
US20100054950 WIND TURBINE BLADES WITH CROSS WEBS  
A blade for a wind turbine includes a spar having a shear web, and at least one cross web extending from the spar.
US20110229336 METHOD FOR MANUFACTURING A BLADE SPAR FOR A WIND TURBINE  
A method for manufacturing a blade spar for a wind turbine blade includes positioning a first spar segment having a first adhering portion; positioning a second spar segment having a second...
US20140099208 VERTICAL AXIS WIND TURBINE WITH SELF-STARTING CAPABILITIES  
A vertical axis wind turbine and vertical axis wind turbine assembly comprising a rotary body and a plurality of blades. A cross section through each blade of the plurality of blades transverse to...
US20080206062 Wind turbine multi-panel blade  
A wind turbine blade (1, 3, 5) comprising at least one central spar longitudinal section (7, 7′, 7″) composed of two cap prefabricated panels (15, 17) and two web prefabricated panels (19, 21)...
US20080310965 Gas-turbine blade featuring a modular design  
A gas-turbine blade has a root 5 and an airfoil 2, with the airfoil 2 including an internal load carrier 6 as well as an airfoil element 8 enclosing the internal load carrier 6 by forming a cavity...
US20140154083 FAN BLADE WITH FLEXIBLE AIRFOIL WING  
A fan assembly is disclosed that includes one or more fan blades, each fan blade having a flexible airfoil wing. A curved, flexible wing is connected to a main spar element located between the...
US20120141284 DEVICE FOR ASSEMBLING SECTIONS OF WIND-TURBINE BLADES AND METHOD FOR LINKING SECTIONS OF WIND-TURBINE BLADES  
A device for assembling sections of wind-turbine blades provided with casings, including at least one tie including a first portion and a second portion, the first portion being a portion for...
US20140161621 ATTACHMENT OF COMPOSITE ARTICLE  
A composite article including composite component mounted on a spar including a shank extending heightwise from below component base up into composite component. Tab at an upper end of shank...
US20120009069 METHOD TO MANUFACTURE A COMPONENT OF A COMPOSITE STRUCTURE  
A method to manufacture a component of a fibre reinforced structure is provided. A number of unconnected roving is used to form a roving bundle. A number of roving bundle is positioned...
US20100135815 SPAR CAP FOR WIND TURBINE BLADES  
A blade of a wind turbine is provided having an improved spar cap. The spar cap includes at least one trench extending in a substantially span-wise direction in at least a portion of the spar cap....
US20120027613 WIND TURBINE BLADE SHEAR WEB CONNECTION ASSEMBLY  
A wind turbine blade has upper and lower shell members with a respective spar cap configured on an internal face of the shell members. A shear web extends between the spar caps along a...
US20090189325 Helicopter blade mandrel with roller assembly  
Methods and apparatus are provided for making a rotor blade spar from composite material wherein a multi-component mandrel is used to form the composite spar. The mandrel is made using a number of...
US20080310964 Stuctural Beam for a Wind Generator Blade Production Method Thereof  
Structural beam of a wind turbine blade comprising a body-root and a body-trunk in the form of a box with a section decreasing towards the blade tip, comprising various piles each formed by...

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