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8182232 |
Wind generator blade with divergent trailing edge
A wind turbine blade having an aerodynamic profile (5) with a leading edge (11), a trailing edge (13) and suction and pressure sides (17, 19) between the leading edge (11) and the trailing edge...
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8177484 |
Impeller of multiblade blower and method of manufacuturing the same
An impeller of a blower is disposed with circular support plates that are made of a resin and rotate about an axis of rotation and a plurality of blades that are made of a resin. The blades are...
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8172507 |
Gas turbine blade with double impingement cooled single suction side tip rail
A turbine blade is provided comprising: an airfoil including an airfoil outer wall extending radially outwardly from a blade root, a squealer tip section located at an end of the airfoil distal...
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8172518 |
Methods and apparatus for fabricating a rotor assembly
A method for assembling a rotor assembly and a rotor assembly are provided. The method comprises providing a rotor blade including a first sidewall, a second sidewall, where the first and second...
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8172510 |
Radial compressor of asymmetric cyclic sector with coupled blades tuned at anti-nodes
A gas turbine engine includes a radial compressor having first and second blades. The first blade has a tuned leading edge that prevents either blade from exciting at a natural frequency at speeds...
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8167569 |
Structure and method for self-aligning rotor blade joints
An inventive self-aligning blade joint structure is provided to facilitate assembly and clamping of wind turbine blade sections carried on a transporter. The blade joint structure includes...
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8167572 |
Dynamically tuned turbine blade growth pocket
A turbine blade growth pocket provides a feature to measure blade growth due to engine operation while maintaining dynamic characteristics of the turbine blade within acceptable limits by providing...
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8162613 |
Angled airfoil extension for fan blade
An angled fan blade extension includes an attachment portion and an angled portion. The attachment portion is configured to facilitate securing the angled fan blade extension to the distal end of a...
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8137057 |
Engine intake air compressor and method
A compressor assembly (304) includes a compressor housing (312) having a main air inlet (324) and an annular wall (328) defining an inducer bore (325). A secondary inlet passage (322) is disposed...
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8133012 |
Transonic airfoil and axial flow rotary machine
Sectional profiles close to a tip 124 and a part between a midportion 125 and a hub 123 are shifted to the upstream of an operating fluid flow in a sweep direction. Accordingly, an S shape is...
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8133025 |
Turbine blade system
A turbine blade system relating to a tip device appended to the blade tip of a turbine. The tip device controls the flow of air to ultimately reduce noise signatures while increasing aerodynamic...
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8128376 |
High performance outboard section for rotor blades
Blades for rotorcraft are designed and/or implemented with rotor blades having a swept portion that occupies at least 20-40% of a length of the blade. Forward and aft sweeps are contemplated, with...
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8113782 |
Impeller structure of blower
An impeller structure includes a hub having a central spindle, and an impeller. The impeller has a top connection ring, a bottom connection ring, a pressure-retaining ring and a plurality of blades...
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8100661 |
Wind turbine rotor blade and wind turbine rotor
A wind turbine rotor blade is provided which includes a root end and a tip end located opposite the root end. A leading edge extends from the root end to the tip end. A trailing edge extends from...
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8100648 |
Submersible rotor design
An improved rotor blade used in combination with a submersible electrical generator comprises a rotor base with width BW, a leading edge, a tip, and a trailing edge. The leading edge and the...
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8100658 |
Axial-flow fluid machine blade
An axial-flow fluid machine blade which achieves reduction of the frictional loss of the blade and provision of a high surge-resistant property is provided. An axial-flow fluid machine blade 60...
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8092179 |
Blade tip cooling groove
An example turbine blade includes a blade having an airfoil profile extending radially toward a blade tip. A shelf is established in the blade tip. A sealing portion of the blade tip extends...
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8092185 |
Impeller and cooling fan incorporating the same
A cooling fan (10) includes a bottom plate (12) a top cover (14) covering the bottom plate, a sidewall (13) disposed between the bottom plate and the top cover, and an impeller (16) enclosed in a...
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8083487 |
Rotary airfoils and method for fabricating same
A method of fabricating an airfoil is provided. The method includes fabricating at least one airfoil including a suction side and a pressure side coupled together at a leading edge and a trailing...
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8083484 |
Turbine rotor blade tips that discourage cross-flow
A turbine rotor blade for a gas turbine engine including an airfoil and dovetail for mounting the airfoil along a radial axis to a rotor disk inboard of a turbine shroud, the airfoil comprising: a...
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8083470 |
Fan and impeller thereof
A fan includes a frame, a motor and an impeller. The motor is disposed on the frame and coupled to the impeller to drive the impeller to rotate. The impeller includes a hub, a plurality of blades...
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8083488 |
Blade extension for rotor blade in wind turbine
A rotor blade assembly is disclosed. The rotor blade assembly includes a rotor blade and a blade extension. The rotor blade has a pressure side, a suction side, a leading edge, and a trailing edge...
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8079819 |
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...
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8070454 |
Turbine airfoil with trailing edge
A turbine airfoil with a relatively thick TBC applied over the airfoil surface. The airfoil has a surface contour on the trailing edge region with a forward end having a large amount of taper and a...
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8068339 |
Axial fan apparatus, housing, and electronic apparatus
There is provided an axial fan apparatus including an axial-flow impeller, a drive unit, and a housing. The axial-flow impeller is capable of rotating and includes a plurality of blades inclined...
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8066485 |
Turbine blade with tip section cooling
A turbine rotor blade with a single tip rail on the suction side of the blade tip, and in which the pressure side tip edge includes a row of trench film slots that each having side walls that are...
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8061990 |
Turbine rotor blade with low cooling flow
A turbine rotor blade with a series of 3-pass serpentine flow near wall cooling circuits that extend along the airfoil to provide low flow cooling for the blade. the 3-pass serpentine circuits...
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8057189 |
Wind turbine blade with modular leading edge
A wind turbine blade has a leading edge and a trailing edge and includes an upper shell member and a lower shell member. The shell members include transversely spaced attachment edge that are...
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8029241 |
Wind turbine rotor blade with aerodynamic winglet
A wind turbine includes a plurality of rotor blades, with each blade having a root portion connected to a rotor hub and an airfoil portion extending radially outward from the rotor hub. The airfoil...
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8011889 |
Turbine blade with trailing edge tip corner cooling
A turbine blade for use in an industrial gas turbine engine, especially for the first stage turbine blade, in which the blade includes a squealer tip with a pressure side tip rail extending all the...
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8007241 |
Bi-directional cooling fan
A radial fan comprises a base with a plurality of straight primary blades radially oriented and substantially uniformly spaced around the circumference of the base. A like plurality of splitter...
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8007243 |
Blower including blades attached to a boss
A blower that can reduce noise and enhance efficiency by improving a blade structure of the blower used for, for example, an outdoor equipment of an air conditioner. An impeller includes plural...
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7997871 |
Impeller for a cooling fan
An impeller (10) for a cooling fan includes a hub (20) having a circular wall (22) and an annular sidewall (24) extending downwardly from a rim of the circular wall, and a plurality of blades (30)...
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7985052 |
Curved blade for wind turbines
A curved blade for use on horizontal wind turbines, the blade comprising a substantially semicircular tip portion, a substantially semicircular counter-tip portion opposite the tip portion, and a...
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7980820 |
Turbine engine blade cooling
A blade is provided for a turbine engine that includes an exterior surface. The exterior surface includes a portion having a thermal barrier coating and an uncoated shelf adjacent to the thermal...
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7976276 |
Noise reducer for rotor blade in wind turbine
A rotor blade assembly for a wind turbine is disclosed. The rotor blade assembly includes a rotor blade having a pressure side, a suction side, a leading edge, and a trailing edge extending between...
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7976283 |
Noise reducer for rotor blade in wind turbine
A rotor blade assembly for a wind turbine is disclosed. The rotor blade assembly includes a rotor blade having surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge...
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7972115 |
Moving blade for a turbomachine
A turbomachine moving blade without a top platform, the blade including a fastener root (110) surmounted by an airfoil (112) that presents an end face (114), a pressure-side face (116), and a...
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7967557 |
Multiblade centrifugal blower
A multiblade centrifugal blower includes a centrifugal fan including a hub rotated by a motor, and plural curved rectangular blades arranged at predetermined intervals in a circumferential...
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7931444 |
Wind turbine with rotor blades equipped with winglets and blades for such rotor
A wind turbine includes a rotor with wind turbine blades each having a root end connected to a hub of the wind turbine and a tip end, the tip end of each of which being equipped with a winglet...
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7927078 |
Wind turbine blade tip vortex breakers
A wind turbine includes a tower supporting a drive train with a rotor, at least one blade extending radially from the rotor; and a plurality of substantially flat flaps extending substantially...
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7922455 |
Steam-cooled gas turbine bucker for reduced tip leakage loss
A bucket for a steam turbine includes an airfoil portion having a radially outer tip, the radially outer tip having a thermal barrier coating applied thereto, and wherein the thermal barrier...
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7922454 |
Joint design for rotor blade segments of a wind turbine
A blade segment of a rotor blade assembly formed from two or more blade segments is disclosed. The blade segment may generally include a body shell and a shear web extending longitudinally within...
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7918653 |
Rotor blade trailing edge assemby and method of use
A method of assembling a rotor blade for a turbine is provided that includes forming a rotor blade trailing edge by coupling a suction side terminus to a pressure side terminus and positioning a...
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7914259 |
Wind turbine blades with vortex generators
An advantageous new design of a wind turbine blade and rotor is obtained by providing one, two or more parallel rows of sub-boundary layer vortex generators, whereby a blade is obtained, which is...
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7909576 |
Fastening device for rotor blade component
A rotor blade assembly is disclosed. The rotor blade assembly includes a rotor blade having a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root....
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7901188 |
Wind turbine blade
A wind turbine blade transversely subdivided into two or more separate modules (1-2) consisting of outer aerodynamic walls or hulls (4) and a longitudinal inner reinforcing structure (3). The...
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7896618 |
Centrifugal compressing apparatus
In a centrifugal compressing apparatus, a height of a blade of an impeller is made to decrease gradually from a front edge thereof to a rear edge thereof, and a rate of change of the height of the...
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7896614 |
Wind turbine blade with integrated stall sensor and associated method of detecting stall of a wind turbine blade
A wind turbine includes an electrical stall sensor configured on a pressure surface of at least one turbine blade at a location to detect backflow in a stall condition. The stall sensor includes a...
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7871244 |
Ring seal for a turbine engine
A turbine engine ring seal for sealing gaps between turbine engine outer seal segments and turbine blade tips. The turbine engine ring segment may have an inner radial surface that defines a...
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