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8130112 |
Method of alarm mask generation and condition monitoring of wind turbines
In one aspect, an alarm mask for condition monitoring in a wind turbine is automatically generated. A reference data selecting definition is selected from a control definition repository in the...
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8113317 |
Electric motor driven lubrication pump control system and method that accomodates turbomachine windmill operation
A system and method are provided to selectively control lubricant supply flow to one or more rotating machines in an aircraft when the rotating machines are windmilling. A controller determines if...
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8100647 |
Method for operating a wind turbine, a wind turbine and use of the method
A method for operating a wind turbine having a rotor with a number of wind turbine blades, wherein the rotor's axis of rotation is tilted in relation to the direction of the incoming wind, includes...
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8092174 |
Wind turbine and method for determining at least one rotation parameter of a wind turbine rotor
A method of determining at least one rotation parameter of a wind turbine rotor rotating with a rotation speed and a phase is provided. The method comprises the steps of: measuring an effective...
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8083481 |
Method for siting and operating a crop protection wind machine array
A system for arranging and operating an array of wind machines to protect crops from damaging weather conditions, such as freezing frost, rain and heat. The method includes a wind machine...
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8075271 |
Electrohydraulic propeller governor
Proposed is a hydraulically controlled variable pitch propeller system for air, land or water craft, comprising an engine, an engine controller, a rotating propeller featuring at least two...
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8057158 |
Oscillation damping of a wind turbine
The invention relates to a wind turbine and a method for operating the wind turbine planted in the floor of a body of water. The wind turbine includes a support structure and a rotor, which is...
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8055390 |
Controller for a blade adjustment angle of at least one rotor blade of a wind power plant
Controller for a blade adjustment angle for at least one rotor blade of a wind power plant, in which a first controller branch is switched for the determination of the blade adjustment angle...
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8021111 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Method for operating a wind turbine, a wind turbine and use of the method
A method for operating a wind turbine having a rotor with a number of wind turbine blades, wherein the rotor's axis of rotation is tilted in relation to the direction of the incoming wind, includes...
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7988414 |
Method and system for operating a wind turbine generator
A method of operating a wind turbine generator having at least one wind turbine blade includes increasing a pitch angle of the at least one wind turbine blade as the at least one wind turbine blade...
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7972112 |
Systems and methods for determining the angular position of a wind turbine rotor
Certain embodiments of the invention may include systems and methods for determining an angular position of a wind turbine rotor. According to an exemplary embodiment of the invention, the method...
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7942629 |
Systems and methods involving wind turbine towers for power applications
A system for determining wind turbine tower base torque loads including a controller configured to determine a torque load of a base of a tower of a wind turbine according to a computation of an...
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7704043 |
Method for torque and pitch control for a wind power plant according to the rotation speed
Method for torque and pitch control/adjustment for a wind power plant according to the rotational speed according to a characteristic curve, in which at partial load operation in a first section...
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7677869 |
Monitoring and data processing equipment for wind turbines and predictive maintenance system for wind power stations
A predictive maintenance system for wind parks, the wind park comprising a group of wind turbines (Ai), a communications network (RS), and a supervision and control system (ST). The predictive...
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7668639 |
Method and apparatus for optimizing the performance envelope of an engine
A method for doing an optimization of the performance envelope initially authorized for an existing rotorcraft engine (M) to enable the engine (M), to be used in an optimized performance envelope...
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7611329 |
Method and device for synchrophasing the propellers of an aircraft with several propulsion units
For constant-speed synchrophasing of the propellers (14) of the propulsion units (10) of an aircraft each equipped with an electronic control circuit (20) connected to a communications network (32)...
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7484933 |
Method for controlling a wind turbine
A method is provided for controlling a wind turbine, and a wind turbine is provided with a control device for controlling a wind turbine. A method and a wind turbine are developed so that losses of...
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7448853 |
System and method of determining centrifugal turbomachinery remaining life
A centrifugal turbomachine includes an impeller and a speed sensor arranged to detect a speed associated with an impeller speed. A temperature sensor is arranged to detect a temperature associated...
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7425117 |
System and method for reducing back flow
A system and method of reducing back flow in an air mover having one or more blades is described. A flap is attached to a blade of the air mover such that, when back flow occurs, the flap obscures...
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7419357 |
Ram air turbine blade disengagement mechanism for over-speed prevention
An improved ram air turbine (RAT) prevents release of its turbine blades due an over-speed condition by detecting an over-speed condition with a trigger mechanism and rotating the blades to a fixed...
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7354246 |
Electronics cooling fan with collapsible fan blade
An electronics cooling fan comprises at least one collapsible fan blade driven by centrifugal force to extend radially as the fan spins and driven by elastic force to retract as spinning slows or...
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7351033 |
Wind turbine load control method
A method for limiting loads in a wind turbine by using measured loads or wind speed to increase the minimum pitch angle for extended periods. The minimum pitch angle will be allowed to relax down...
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7296970 |
Ram air turbine speed sensing ball detent over-speed prevention mechanism
A ram air turbine (RAT) prevents release of its turbine blades due an over-speed condition by detecting an over-speed condition with a turbine hub-mounted centrifugally operated trigger mechanism...
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7223071 |
Device for providing assistance to the pilot of a rotorcraft in the event of engine failure
The present invention provides a device enabling the collective pitch of the blades of the main rotor of a single-engined rotorcraft to be reduced automatically in the event of an engine failure....
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7204674 |
Rotor blade for a wind power installation
A rotor for a wind power installation having at least one rotor blade. The smaller the surface area on which the wind acts, that is to say in particular the rotor blade area, the correspondingly...
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7172392 |
Passive speed and power regulation of a wind turbine
A wind turbine with at least one blade having a pitch axis that is offset laterally so that the blade does not intersect with an axis of rotation of the wind turbine, and a center of mass and an...
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7118336 |
Pressurized oil supply for propeller engine system
A system and method for providing pressurised oil during non-feathered in-flight shutdown conditions in a variable-pitch aircraft propeller engine. A secondary pump provides pressurised oil...
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7101152 |
Method for maximizing the energy output of a wind turbine
A method is provided for controlling a wind turbine, and a wind turbine is provided with a control device for controlling a wind turbine. A method and a wind turbine are developed so that losses of...
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7094017 |
Vertical shaft driving device for vertical wind mills or the like and electric power generator using the same
A vertical shaft driving device wherein a plurality of rotary blades (8a, 8b, 8c and 8d) each including a blade (10) supported on a planetary shaft are equally arranged circumferentially of a...
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7025559 |
Methods and systems for operating rotary machines
A method for operating a rotary machine is provided. The rotary machine includes a stationary member and a rotatable member wherein the rotatable member is configured to rotate at least partially...
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6986641 |
Engine control system
A power turbine speed control system for a helicopter is disclosed which includes components for generating a power turbine speed signal based upon a demanded rotor speed, a high-order filter for...
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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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6921248 |
System for controlling the torsional stability of the drivetrain of a machine, in particular of a helicopter
System for controlling the torsional stability of the drivetrain of a machine, in particular of a helicopter. The system (1) comprises a means (7) for acting on the speed of an engine (5) of the...
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6755609 |
Radial pump
A radial-flow pump (1), and especially a coolant pump for an internal combustion engine, comprising an impeller (2) provided with vanes (5) and a directing device (4) including at least one...
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6749399 |
Vertical array wind turbine
A wind turbine with an array of rotors arranged at various heights. Each rotor is optimized for the height at which it is located. Optimization of each rotor could include selection of rated power,...
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6736593 |
Protective device for a turbo molecular pump and method of protecting a turbo molecular pump
A protective device is provided for protecting a turbo molecular pump having a rotor mounted for undergoing rotation, an intake port for sucking gas by rotation of the rotor, and an exhaust port...
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6641365 |
Optimum speed tilt rotor
A variable speed helicopter tilt rotor system and method for operating such a system are provided which allow the helicopter rotor to be operated at an optimal angular velocity in revolutions per...
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6311106 |
Automatic flat rate setting system for freight feeder aircraft and method of setting of engine flat rate
A system and method of automatically setting a flat rate engine power setting of an aircraft determines the weight of loaded cargo containers to determine the total gross weight of the aircraft...
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6227803 |
Apparatus for generating electric power using wind force
An apparatus for generating electric power using wind force which is capable of generating good quality electric power by combining the apparatus with the inventor's water wave force-based electric...
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6196801 |
Adjustable propeller unit which can be hydraulically reversed
A hydraulically reversible, adjustable propeller unit for aircraft, land vehicles and watercraft, with a propeller with at least two blades, the pitch of which is controllable by means of a control...
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6193464 |
Active brake control for rotor/wing aircraft
The present invention comprises a feedback-controlled braking apparatus that applies a modulated braking force that smoothly decelerates a rotating shaft such that it comes to rest at a precise...
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6161994 |
Device for cleaning the working area of chip removal machines
A propeller with pivoting blades is provided as a cleaning tool (1) for the work area of metal cutting machines, where the angle of adjustment for the pivoting blades is such that an air jet is...
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6065930 |
Cooling control apparatus
A cooling control apparatus controls a plurality of cooling members. The apparatus has a monitor which monitors states of predetermined combinations of the cooling members and a controller which...
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6059528 |
Electronic propeller control system
An improved electronic hydraulic propeller control designed as a retro-fit kit for existing Hamilton Standard Division 54460 and 54H60 propeller controllers includes an apparatus for controlling...
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6007298 |
Optimum speed rotor
A variable speed helicopter rotor system and method for operating such a system are provided which allow the helicopter rotor to be operated at an optimal angular velocity in revolutions per minute...
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6000907 |
Fluid-activatable vane for a fluid turbine
A fluid-activatable vane is defined by a thin vane body having opposed narrow leading and trailing side edges and opposed substantially smooth large top and bottom surfaces. The body has a central...
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5997250 |
Method and apparatus for controlling pitch of an aircraft propeller
A propeller pitch control apparatus for an aircraft in which the vector sum of the aircraft forward speed and the propeller rotational tip speed is a selected fraction of the speed of sound, the...
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5993158 |
Method and apparatus for aeration using flexible blade impeller
An impeller having flexible impeller blades with a stiffness which allows the blades to flex into a backward-curved impeller configuration at the maximum intended rotational speed of operation, and...
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5951249 |
Self governing fluid energy turbine
A fluid energy turbine has a radial flow rotor in which fluid driven blades are peripherally distributed about a horizontal axis and in which auxiliary-biased outlet gates are provided for release...
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5897293 |
Counterweighted propeller control system
A system for controlling functions of a propeller having a plurality of blades is disclosed. The system comprises an electronic control for controlling the functions of the propeller. A plurality...
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