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8177482 |
Wind power conversion apparatus driven by fly wheel
A wind power conversion apparatus driven by a fly wheel includes a wind channel, a fly wheel and a rotating shaft. The wind channel is configurated into a long hollow tapered tubular shape with...
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8171632 |
Method of manufacturing integrally designed rotor wheels to exhibit an essentially identical natural frequency and mass using chemical etch machining
In the manufacture of integrally designed rotor wheels (BLISKs), the natural frequency of each blade is measured after forming by conventional shaping methods and the respective blade mass and its...
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8147199 |
Pump and balancing cover thereof
A balancing cover connected with a rotor structure includes a plate, a plurality of blades and at least one balancing element. A central portion of the plate has an opening. Each blade has one end...
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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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8070445 |
Balancing system for turbomachine rotor
The present invention relates to a turbomachine rotor balancing system comprising a balancing flange (52) provided with through-passageways (78), the system further comprising balance weights (54)...
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8066486 |
Method and apparatus for vibration-based automatic condition monitoring of a wind turbine
Method and apparatus for vibration-based automatic condition monitoring of a wind turbine, comprising the steps of: determining a set of vibration measurement values of the wind turbine;...
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8029240 |
Rotor blade adjustable weight retention system
In one embodiment, a rotor blade balancing apparatus may include a tube member defining an inner cavity, a plurality of weights, and a biasing member. The tube member may be for the insertion into...
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8025483 |
Balancing system for turbomachine rotor
A turbomachine rotor balancing system including a balancing flange provided with through-passageways, and balance weights mounted fixedly on the balancing flange by at least one screw/nut assembly...
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7927074 |
Fan rotor
A fan rotor includes a hub (10), a plurality of blades (20) radially disposed around the hub, and a magnet (30) located in an inner side of the hub. The hub includes a top wall (12) and a sidewall...
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7912587 |
Method of balancing a gas turbine engine rotor
A method of balancing an assembly of rotary parts of a gas turbine engine comprising measuring at least one of the concentricity and parallelism of each component and considering globally all...
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7841832 |
Fan for generating an air flow
A weight adjustment portion is formed at an upper end of a hub to project radially inward. An approximately U-shaped balance clip is attached to the weight adjustment portion. A gap to be...
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7794205 |
Vertical axis wind turbine bearing axial load sharing
A vertical axis wind turbine (VAWT) assembly effects sharing of the axial load on its bearings to increase equipment life and/or effective operation. The assembly includes: a support; a VAWT (e.g....
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7789627 |
Centrifugal impeller
A centrifugal impeller employed in a centrifugal machine, includes a main body, the main body generally being conical and defining a shaft bore in a center portion thereof; and a plurality of blade...
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7717679 |
Structure of balancing fan
A structure of a balancing fan is disclosed. The fan comprises a hub and a rotation balancing unit. The hub comprises a top portion and a ring portion disposed around the top portion. A plurality...
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7572101 |
Methods and apparatus for assembling rotatable machines
A method and apparatus for assembling a rotatable machine is provided. The machine includes a first set of blades that extend radially outwardly from a rotor assembly and wherein a second set of...
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7553125 |
Method of calibrating the mass of components intended to be mounted at the periphery of a rotor
A method of calibrating the mass of components intended to be mounted at the periphery of a rotor, the method consisting, for each of the components, in removing by machining a volume of material...
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7524162 |
Rotor for a rotating machine, in particular a steam turbine
A rotor for a rotating machine, in particular a steam turbine includes at least one subregion composed of a metal structure having a reduced density and including a multiplicity of finely...
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7500299 |
Method for introducing a deliberate mismatch on a turbomachine bladed wheel and bladed wheel with a deliberate mismatch
A method to introduce a deliberate mismatch into a turbomachine bladed wheel so as to reduce vibration amplitudes of the wheel in forced response. The method includes a step of determining an...
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7497662 |
Methods and systems for assembling rotatable machines
A method of ordering blades in a rotatable machine that includes a plurality of blades that extend radially outwardly from a rotor is provided. The method includes receiving at least one geometric...
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7491031 |
Balancing device of a turbomachine engine
A device for balancing a turbomachine rotor includes at least one counterweight fitted to the rotor, wherein the counterweight includes two radial bearing surfaces oriented in two opposite radial...
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7377749 |
Device for balancing a rotating part, in particular a turbojet rotor
A device for balancing a rotating part, in particular a turbine rotor in a turbomachine such as a turbojet or the like, the device comprising at least one balance weight comprising engagement means...
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7371042 |
Method and apparatus for balancing gas turbine engines
A method, system, and balanced rotating assembly are provided for field balancing an assembly including a power turbine. The method, system and assembly includes coupling the power turbine to a...
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7370529 |
Method for balancing an object having multiple radial projections
A method of balancing a movable rotating object having multiple radial projections, such as a ceiling fan, the method comprising the steps of: attaching to a non-rotating portion of the object a...
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7347672 |
Rotor disk balancing device, disk fitted with such a device and rotor with such a disk
A rotor disc includes a rim and a balancing device, which includes housings formed in the rim, and balancing masses housed in at least some of the housings.
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7309211 |
Balancing method
A method of balancing a rotor, where the rotor comprises a plurality of holes, comprises the steps of measuring an imbalance of the rotor, identifying at least one characteristic dimension...
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7303377 |
Apparatus and method of balancing a shaft
An apparatus for balancing a shaft of an aircraft engine preferably includes a plate and the use of standard fasteners. The plate provides mounting for a nose cone, and the balancing apparatus may...
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7296976 |
Dual counterweight balancing system
A system for balancing a rotatable gas turbine engine component. The system includes two balance rings that are coupled to the component by mating splines on the respective item. Each of the rings...
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7287958 |
Methods and apparatus for assembling rotatable machines
A method, rotor assembly, and apparatus for ordering blades in a rotatable machine is provided. The rotor assembly includes a disk including a plurality of circumferentially-spaced blade root slots...
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7281896 |
Fan and impeller thereof
An impeller includes a hub and at least one blade. In this case, the hub has at least one balancing portion disposed on hub and arranged with respect to a center of the hub. The balancing portion...
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7165941 |
Method and apparatus for use in construction of wind power installation and wind power installation employing same
One aspect of the present invention concerns a process for mounting rotor blades to a rotor hub of a wind power installation in situ. In order to avoid high torques in the mechanical train of the...
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7108480 |
Method and apparatus for balancing turbine rotors
A method facilitates balancing a gas turbine rotor. The method includes providing a gas turbine rotor including a plurality of turbine blades, wherein at least one turbine blade includes a blade...
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7097427 |
Helicopter main rotor blade balance weight retention assembly
A helicopter main rotor blade balance weight retention system and assembly having a base plate (105), at least one support post (107) integral with the base plate and extending out perpendicularly...
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7063507 |
Balance adjusted fan
A balance adjusted fan mainly includes a hub, a shaft and a plurality of blades. The hub has a ring-wall and a top wall, and the shaft is connected to the top wall. The ring-wall has a plurality of...
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7025570 |
Axial flow fan assembly
An axial flow fan assembly is provided to prevent the backflow of fluid passing therethrough. The axial flow fan assembly includes a mounting panel having a through-hole to allow fluid flow, and an...
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6986637 |
Stub axle
A stub shaft for a turbine engine is described in which respective masses are positioned along the stub shaft in a balanced rotation relationship for normal rotation. One mass is positioned at the...
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6984110 |
Windmill blade and apparatus for generating power using the blade
Disclosed is a wind power generating apparatus in which windmill blades are mounted in a multi-stage fashion to a rotating shaft while being spaced apart from one another to efficiently generate...
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6976827 |
Rotor balancing device and method
The present invention includes a rotor assembly comprising a shaft, a first component coaxially attached to the shaft for performing a first function in the rotor assembly and acting as a first...
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6942457 |
Fan assembly and method
Fans according to some embodiments of the present invention include a spider, a central hub coupled to the spider, and two or more fan blades. One or more fan design features can be employed (alone...
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6931861 |
Anti-score plates
A gas turbine engine flanged shaft (120) is provided with a plurality of anti-score plates (6a, 6b) each of which has two openings which are aligned with corresponding apertures on the flange....
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6908284 |
Fan attachment with dynamic out-of-balance equalization
The invention is based on an axial fan with a hub region (4, 27) for connecting the axial fan with a driven shaft (20) of an electrical drive (21), whereby the axial fan is statically balanced by...
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6896475 |
Fluidic actuation for improved diffuser performance
A diffuser includes an opening along the diffuser wall for preventing or delaying boundary layer separation of the main flow. The opening may include a curved passageway having a curvature convex...
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6893222 |
Turbine balancing
A turbine disk has an at least partially radially-extending first portion. An at least partially axially-extending circumferential flange has a root connecting the flange to the first portion. The...
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6808366 |
Fluid flow powered dynamo with lobed rotors
Multiple, timed three-lobed rotor that are more efficient yet uncomplicated and easy to produce. A rotor lobe with additional reaction surfaces near the tip to increase the angle of rotation that...
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6726451 |
Ceiling fan and fan blade mounting arrangement for generating center or rotational gravity outside vertical axis
A mounting arrangement for a ceiling fan has one or more blades located in the same semicircle of rotation so as to produce a center of rotational gravity that lies outside the vertical axis of the...
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6709226 |
Vacuum pump
To provide a vacuum pump used for semiconductor manufacturing, which has improved reliability and safety and in which damages to a pump casing, peripheral apparatuses, or the like are prevented...
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6672837 |
Wind turbine with oscillation damping means
The present invention relates to a wind turbine with oscillation damping means provided at the nacelle and being designed for damping edgewise oscillations of the rotor blades in the rotational...
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6574572 |
Reducing vibration using QR decomposition and constrained optimization
Determining adjustments for rotating blades includes measuring a plurality of vibration values corresponding to vibrations caused by the blades, providing coefficient of vibration data that...
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6530747 |
Balancing clip
A clamp (20, 50) for balancing can be mounted on the circumference of a rotating body (10) on a part (12) that tapers to a thin-walled end. The clamps (20, 50) has a U-shaped cross-sectional...
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6527515 |
Rotor for rotary wing aircraft
A rotor for rotary wing aircraft includes a number of features that reduce the collective forces required to control the pitch of the rotor. The spar caps of the spar become joined to one another...
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6477916 |
Methods of installing a balance weight for a rotary component in turbomachinery
A balance weight has first and second margins at right angles to one another with the second margin larger than the first margin. A balance weight groove in a rotor has outer and inner wall...
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