Quotables
"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8172535 | Wind energy plant with a rotor A wind energy plant with a rotor, which is coupled to a gear via a rotor shaft, the rotor shaft being double bearing mounted via one rotor side bearing and one gear side bearing, wherein a connection between the rotor shaft and gear is provided at the gear side of t... | 05/08/2012 |
| 8169095 | Wind energy plant with a rotor A wind energy plant with a rotor, which is connected to a gearbox and/or a generator via a rotor shaft, wherein the rotor shaft is bearing mounted on a carrier unit via two taper roller bearings in an O arrangement, characterized in that each taper roller bearing ha... | 05/01/2012 |
| 8148835 | Method for controlling a wind energy plant The present invention is related to a method for controlling a wind energy plant with plural control units, which perform control tasks in the wind energy plant, comprising the following steps: a) one priority at a time is assigned to the control units,... | 04/03/2012 |
| 8128368 | Apparatus for the ventilaton of a rotor hub of a wind energy plant Apparatus for the ventilation of a rotor hub of a wind energy plant, with a cup-shaped ventilation cap, which has a circumferential side wall and a base portion, wherein the side wall has at least one bore for draining water and the base portion has at least one bor... | 03/06/2012 |
| 8102067 | Method for the operation of a wind energy plant having a wind velocity measurement device A method for the operation of a wind energy plant, which features a wind velocity measurement device and a device for the detection of a mechanical load, with the following steps: measuring a wind velocity with the wind velocity measurement device, detecting a mecha... | 01/24/2012 |
| 8100628 | Method for controlling a wind energy plant The present invention is related to a method for controlling a wind energy plant, with a nacelle disposed on a tower and with a rotor with at least one rotor blade, the blade adjustment angle of which can be adjusted by means of a blade adjustment equipment. The obj... | 01/24/2012 |
| 8080890 | Method for the operation of a wind turbine and wind turbine using this method A method for the operation of a wind turbine comprising a rotor with at least one rotor blade, a generator and a speed regulator for regulating the rotational speed of a drive train element by adjusting a generator torque and/or a blade pitch angle, comprising the s... | 12/20/2011 |
| 8075266 | Method and apparatus for rotating a component of a wind energy plant The invention is related to a method for rotating a component of a wind energy plant by traversing an adjustment device, wherein the adjustment device comprises at least two adjustment drives, each one thereof having at least one electric motor, for traversing the a... | 12/13/2011 |
| 8068939 | Method for the operation of a wind energy plant A method for the operation of a wind energy plant, with an operation management, which can preset a desired value for an electric variable of the wind energy plant to be generated; a wind measurement device, which can capture the wind direction and the wind velocity... | 11/29/2011 |
| 8067845 | Method for the operation of a wind energy plant at sudden voltage changes in the grid A method for the operation of a wind energy plant with a rotor, which transfers a driving moment to a generator via a drive train, wherein the generator provides a pre-settable generator moment acting opposite to the driving moment and is connectable to a grid, char... | 11/29/2011 |
| 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 depending on the operating states of the wind power plant, wherein at least... | 11/08/2011 |
| 7949434 | Method for controlling a wind energy park The present invention is related to a method for controlling a wind energy park with plural wind energy plants and plural control units, which perform control tasks in the wind energy park, comprising the following steps: a) one priority at a time is as... | 05/24/2011 |
| 7948102 | Method for operating a wind energy plant with a doubly-fed asynchronous machine and wind energy plant with a doubly-fed asynchronous machine Method for operating a wind energy plant having a doubly-fed asynchronous machine, a grid-sided converter and a generator-sided converter both being controlled by a control means, the method comprising the following steps: in a regular operating mode the converters ... | 05/24/2011 |
| 7905704 | Method for operating a wind energy plant A method for operating a wind energy plant with a rotor having rotor blades which have an adjustable blade pitch, characterized in that the adjustment of the blade pitch takes place with an adjustment velocity and/or an adjustment acceleration, wherein the magnitude... | 03/15/2011 |
| 7874800 | Wind energy plant with a pitch bearing A wind energy plant with a rotor hub housing, which is connectable to at least one pitch bearing via joining means, and with at least one rotor blade, the blade root of which is connected to the pitch bearing, wherein a stiffening element is provided, which is faste... | 01/25/2011 |
| 7866946 | Method for operating a device to vary a blade setting angle, and a varying device A method for operating a device to vary a blade setting angle on a rotor blade of a wind power plant, comprising two variable drives each per rotor blade, a bearing element acting between the rotor blade and rotor hub which has a freely rotatable bearing ring, where... | 01/11/2011 |
| 7839008 | Method for the operation of a wind energy plant with a double-fed asynchronous generator and wind energy plant with a double-fed asynchronous generator A method for the operation of a wind energy plant with a double-fed asynchronous generator which has a mode of operation as a phase shifter, in which reactive power is fed into the electric power supply grid, the method having the following steps: the stator of the ... | 11/23/2010 |
| 7834476 | Method for running in a drive train component of a wind energy plant and wind energy plant for executing this method A method for running in a drive train component of a wind energy plant, wherein the wind energy plant has an operation management which can control at least one operational variable B significant for the strain of the drive train component to a desired value BS... | 11/16/2010 |
| 7832985 | Rotor blade and wind energy plant The present invention is related to a rotor blade for a wind energy plant, with a blade root, with a first longitudinal portion starting from the blade root, with a second longitudinal portion, following up the first longitudinal portion and running into a blade tip... | 11/16/2010 |
| 7809477 | Method for starting up a wind energy plant after an operation stoppage and wind energy plant which can execute the method A method for starting up a wind energy plant after an operation stoppage, wherein the wind energy plant has a gearbox in the drive train and an operation management which can control at least one operational variable significant for the strain of the gearbox B of th... | 10/05/2010 |
| 7805222 | Method for the determination of a control reserve and wind energy plant with a control unit for the determination of the control reserve A method for the determination of a control reserve of one or plural wind energy plants, for the operation of which a desired value for at least one electric variable is preset, and for which a control unit is provided which has a power curve, which contains a maxim... | 09/28/2010 |
| 7780417 | Wind energy plant with a rotor hub A wind energy plant with a rotor hub which is connected to at least one pitch bearing, and with at least one rotor blade, the blade root of which is connectable to the pitch bearing via joining means, wherein a stiffening element is provided, which is arranged betwe... | 08/24/2010 |
| 7759815 | Wind motor with a holding device for a rotor shaft Wind motor with a drive, the input of which is coupled with a rotor shaft, which has a separate mount, characterized in that a holding device is provided between the mount and the drive, which in its mounted state holds the rotor shaft in a predetermined position. | 07/20/2010 |
| 7705481 | Wind energy plant with pitch controller A wind energy plant having at least one rotor blade with a pitch angle, the pitch angle being adjustable by means of a pitch controller, and a generator converter unit, at least one electrical quantity of the generator converter unit being adjustable by means of a c... | 04/27/2010 |
| 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 the torque is adjusted up to a first predetermined rotational speed, at... | 04/27/2010 |
| 7694473 | Wind energy plant tower A wind energy plant tower with a tower portion made of a concrete material and a steel-made tubular tower segment, which has on its foot a plurality of connection bores for the connection to the tower portion made of the concrete material, wherein the tower portion ... | 04/13/2010 |
| 7663260 | Method and apparatus for the operation of a wind energy plant in the power-limited operation A method and apparatus for operating a wind energy plant with a rotor blade control, a torque control and a control unit. A power limited mode of operation presets a desired value for the fed power, which is smaller than the rated value for the plant. On a threshold... | 02/16/2010 |
| 7650786 | Apparatus for monitoring the rotational speed in a wind energy plant An apparatus for monitoring the rotational speed in a wind energy plant, with a rotor shaft which is driven by the rotor and runs out into a gear unit, and with a generator shaft, which connects an output shaft of the gear unit with a generator/converter unit, chara... | 01/26/2010 |
| 7649282 | Wind park and method for the operation of a wind park A wind park with a plurality of wind energy plants, which each have one plant control, which presets a desired value for the active power to its wind energy plant, and with a park control, which presets a desired value for the active power to be generated for each p... | 01/19/2010 |
| 7649277 | Method for the operation of a wind energy plant with a synchronous generator and a superimposition gearbox A method for the operation of a wind energy plant, with a synchronous generator, a superimposition gearbox, which is connected between rotor shaft and generator shaft, and a drive unit, wherein before connecting the synchronous generator to the electric grid, the dr... | 01/19/2010 |
| 7638984 | Method for the operation of a wind energy plant with voltage-dependent control of a reactive electric variable which is to be provided A method for the operation of a wind energy plant, with control of a reactive electric variable which is to be provided, wherein a desired value for the reactive electric variable is determined as follows: a first upper and/or a first lower limit value of the grid v... | 12/29/2009 |
| 7602074 | Wind power installation having an auxiliary generator and method for the control thereof A wind power installation with a rotor, a generator for generating electric power, at least one rotatably mounted rotor blade displaceable about its longitudinal axis for adjusting the angle of attack, and an auxiliary generator for generating electric power for at ... | 10/13/2009 |
| 7595566 | Method for the operation of a wind energy plant with a synchronous generator and a superimposition gearbox A method for the operation of a wind energy plant, with a synchronous generator and a superimposition gearbox, which is connected between rotor and generator, and the gear ratio of which is adjusted by a control unit, characterised in that a mode of operation is pro... | 09/29/2009 |
| 7568772 | Wind energy plant with a hydraulically actuated rotor brake and method for the hydraulic control of a rotor brake A method for controlling a hydraulically actuated rotor brake for a drive train of a wind energy plant, wherein the rotor brake is realized as an active rotor brake, which exerts a braking moment getting stronger when the hydraulic pressure increases, wherein in a f... | 08/04/2009 |
| 7566982 | Method for controlling and adjusting a wind turbine A method for controlling and adjusting a wind power installation having a nacelle displaceable by an azimuth angle, at least one rotor blade displaceable about its longitudinal axis and a power supply in a spinning mode, wherein the method comprises the following st... | 07/28/2009 |
| 7557457 | Method for the operation of wind power plants Method for the operation of a wind power plant with controllable effective power, wherein an idle power interval defined by a minimum idle power and a maximum idle power is assigned to each value of the effective power and the actual idle power can be controlled wit... | 07/07/2009 |
| 7525209 | Method for the operation of a wind turbine generator system A method for the operation of a wind turbine generator system adapted to be switched into the mains, including a variable-speed rotor, a torque governor, and a governor for the angle of blade attack, characterized in that the speed of the rotor is regulated by varyi... | 04/28/2009 |
| 7513736 | Equipment for the aeration of a rotor hub of a wind energy plant Wind energy plant with an aeration equipment for a rotor hub, with a cup-shaped element which has a bottom and a circumferential side wall, and a pipe-shaped connection piece, directed into an inner space of the rotor hub, the cup-shaped element being kept in front ... | 04/07/2009 |
| 7501798 | Method for the active damping of the drive train in a wind energy plant A method for the active damping of a drive train in wind energy plant, with the following steps: the actual value of the generator rotational speed is acquired and amplified via an oscillatory delay element, the oscillatory delay element has a predetermined natural ... | 03/10/2009 |
| 7494193 | Wind energy plant with a hydraulically actuated rotor brake A wind energy plant with a hydraulically actuated rotor brake for a drive train, which has at least one hydraulically actuated brake cylinder, the braking moment of which gets stronger when the hydraulic pressure increases, wherein a volume of hydraulic fluid is ten... | 02/24/2009 |
