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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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8157532 |
Wind turbine blade with anti-noise devices
A wind turbine comprising at least a blade (11) having an aerodynamic profile with a leading edge (13), a trailing edge (15) and suction and pressure sides between the leading edge (13) and the...
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8147205 |
Turbomachine blade
The turbomachine blade has ribs formed in the vicinity of the trailing edge. Over the major fraction of the trailing edge (42), in zones where the temperature in operation is particularly high, the...
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8133032 |
Rotor blades
A rotor blade has a tip with an outer face including at least two channels which each extend to an outlet in the vicinity of the trailing edge. Accordingly, gas leakage around the tip must cross at...
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8118560 |
Blade
A blade surrounded by: a leading edge portion, which is where fluid flows in; a pressure surface which is a concave curve shape concaved along a direction the fluid flows; a suction surface which...
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8118555 |
Fluid-flow machine and rotor blade thereof
A fluid-flow machine, especially for an aircraft engine, includes a rotor having rotor blades 3. The rotor blades 3 include, on a suction side 9, at least two zones of different surface finish,...
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8113802 |
Food centrifugal pump formed by stamping and welding having a seal arrangement between the impeller and casing
A food centrifugal pump formed by stamping and welding, comprising a pump casing and a cover mounted therein, an impeller, a shaft and a motor provided on the outer side of the casing, wherein the...
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8100664 |
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 upwardly from a periphery of the circular wall, and a plurality of blades...
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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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8087897 |
Fluid rotor
A rotor having at least two flightings includes a plurality of elongated support ribs rigidly interconnecting at axially spaced intervals, the outer edge of a first flighting with the inner edge of...
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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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8075279 |
Coated turbine blade
The invention refers to a coated turbine blade for a gas turbine, having blade walls divided into sections with locally adapted material temperatures. The cooler material temperatures of the blade...
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8070447 |
Ceiling fan
A ceiling fan comprising a disc-like stator provided with a fixed shaft at the center, an annular rotor disposed in proximity to the periphery of the stator, a supporting frame fixed to the rotor...
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8061986 |
Wind turbine blades with controllable aerodynamic vortex elements
A wind turbine blade has a suction side surface and a pressure side surface. A plurality of dynamic vortex elements are formed on at least one of the suction side or the pressure side surfaces. The...
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8047784 |
Lift device for rotor blade in wind turbine
A lift device for a rotor blade and a method for increasing the lift of a rotor blade for a wind turbine are disclosed. The rotor blade has exterior surfaces defining a pressure side and a suction...
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8047801 |
Wind turbine blades with aerodynamic vortex elements
A wind turbine blade had a suction side surface and a pressure side surface. A plurality of vortex elements are formed on at least one of the suction side or the pressure side surfaces. The vortex...
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8038396 |
Vortex generator assembly for use with a wind turbine rotor blade and method for assembling a wind turbine rotor blade
A method of manipulating a boundary layer across a wind turbine rotor blade. The method includes coupling at least one vortex generator to the rotor blade. The vortex generator includes at least...
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8029242 |
Multi-blade fan
In a multi-blade fan provided with a plurality of notches in a blade edge in an outer side of each impeller blade, it is possible to direct an impeller blade outlet in a portion of the notches to a...
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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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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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7927068 |
Expandable impeller pump
An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades...
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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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7891951 |
Fan with improved heat dissipation
A fan includes a rotatable center member that is centered relative to an axis of rotation of the fan. The fan includes a number of blades radially extending from the rotatable center member. Each...
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7883323 |
Fan with improved heat dissipation
A fan includes a rotatable center member that is centered relative to an axis of rotation of the fan. The fan includes a number of blades radially extending from the rotatable center member. Each...
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7878759 |
Mitigation of unsteady peak fan blade and disc stresses in turbofan engines through the use of flow control devices to stabilize boundary layer characteristics
Method and apparatus for providing a turbofan blade 40 adapted to initiate and control a boundary layer transition at a side surface of the blade 40 during operation as a component in a turbofan...
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7866952 |
Fan with improved heat dissipation
A fan includes a rotatable center member that is centered relative to an axis of rotation of the fan. The fan includes a number of blades radially extending from the rotatable center member. Each...
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7857577 |
System and method of pumping while reducing secondary flow effects
A technique improves the pumping performance of a centrifugal pump in a cost-effective manner. The centrifugal pump comprises a pumping component having one or more vanes defining fluid flow paths....
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7857597 |
Boundary layer fins for wind turbine blade
A wind turbine blade includes a plurality of boundary layer fins, aligned substantially parallel to a direction of flow over the blade, for reducing boundary layer separation from the blade.
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7845905 |
Hollow turbine blade
A hollow turbine blade is provided including an airfoil profile which is formed by a suction-side profile wall and a pressure-side profile wall and around which a hot gas can flow and which has a...
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7842375 |
Fiber retention system for metal matrix composite preform
A metal matrix composite preform including an angled curved groove in the surface of the matrix material. A reinforcing fiber is placed within the angled curved groove and the stiffness of the...
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7819631 |
Fan with improved heat dissipation
A fan includes a rotatable center member that is centered relative to an axis of rotation of the fan. The fan includes a number of blades radially extending from the rotatable center member. Each...
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7815418 |
Shroud and rotary vane wheel of propeller fan and propeller fan
A shroud includes a body portion 5B, a mount 7 positioned at a center of the body portion 5B and supporting rotary vane wheel driver 6, and multiple support beams 10 radially extending from the...
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7794198 |
Centrifugal fan and apparatus using the same
A lateral plate and a main plate are provided inside a casing, and a plurality of blades are circularly arranged on this main plate. A plurality of asperities are formed from the front blade edge...
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7766624 |
Rotor blade for a ninth phase of a compressor
The invention relates to a blade of a rotor of a ninth phase of a compressor, which can be defined by coordinates of a discreet combination of points, in a Cartesian reference system (X, Y, Z),...
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7766616 |
Turbine blade for a gas turbine, use of a turbine blade and method for cooling a turbine blade
There is described a turbine blade of a gas turbine comprising a suction-side blade wall and a pressure-side blade wall that, in the trailing edge area, runs toward the suction-side blade wall....
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7744346 |
Leading edge configuration for compressor blades of gas turbine engines
In a supersonic area, on a leading edge (2) of a compressor blade (1) for a gas turbine engine, a replaceable, longitudinally elastically deformable leading edge rail (7) with slender tip (11) and...
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7713030 |
Fan with improved heat dissipation
A fan includes a rotatable center member that is centered relative to an axis of rotation of the fan. The fan includes a number of blades radially extending from the rotatable center member. Each...
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7673730 |
Coolant distribution device
A coolant distribution device for a wet-running clutch device and comprising several coolant distribution surfaces along which coolant is conveyed outwards in the radial direction. In order to...
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7670105 |
Drain pump, and air conditioner provided therewith
A drain pump is provided that reduces the operating noise when the head is low. The drain pump has a pump casing, and an impeller. The pump casing has a drain inlet for sucking in drain water at a...
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7625181 |
Turbine cascade structure
A turbine blade cascade structure includes a plurality of blades arranged in series in a circumferential direction on a wall surface, in which a corner portion defined by the wall surface and a...
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7604461 |
Rotor blade for a wind turbine having aerodynamic feature elements
A rotor blade for a wind turbine includes a surface having a plurality of aerodynamics feature elements formed therein. The elements for influencing an airflow at the surface during operation of...
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7600975 |
Turbine and rotor therefor
A rotor that consists of a central hub or shaft and a plurality of boot shaped integral blade/vane units that combine a pronounced elongated vane tip extending substantially toward the incoming...
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7585157 |
Rotor blade for a wind power station
A rotor blade for a wind power station includes a profiled member that is provided with a relative thickness which decreases towards the outside from a root to a tip of the blade. The profiled...
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7566203 |
Rotor blade
The invention relates to a rotor blade, preferably for use in a wind turbine, comprising a rotor wing. In accordance with the invention, at least one shaped member projecting beyond the surface of...
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7520722 |
Method for increasing a blade performance (variants)
The invention relates to machine building in particular to blade machines for air injection, in particular to fans and air blowers, and also to blades of different propulsion devices. The inventive...
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7494325 |
Fan blade with ridges
A blade including a body having a leading edge, a trailing edge, a surface point of maximum camber, and a low pressure surface extending between the leading edge and the trailing edge. The body...
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7435058 |
Ceramic matrix composite vane with chordwise stiffener
A means (22) for structurally stiffening or reinforcing a ceramic matrix composite (CMC) gas turbine component, such as an airfoil-shaped component, is provided. This structural stiffening or...
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