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Patent No. 6637829

Decorative Jeweled Wheel Cover

An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.

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Class 322/29 - Speed or frequency of generator


Subclass of Class 322 - Electricity: single generator systems
Definition: Subject matter wherein the automatic control of the generator
No. of applications: 62
Last issue date: 05/24/2012


1    
Application No.Application TitleIssue Date
20120126758HIGH VOLTAGE DC POWER GENERATION
A DC power system includes a permanent magnet generator (PMG), and an active rectifier in electrical communication with the PMG. The active rectifier is adapted to actively rectify power output from the PMG if the PMG is operating at low speed, and the active rectifier ...
05/24/2012
20110267012Methods and Apparatuses for Elimination of Torque Pulsation in Doubly Fed Induction Generators Using the Field Reconstruction Method
Methods and apparatuses for substantially eliminating torque pulsation in a doubly fed induction machine are disclosed. An example method comprises: measuring a stator current of the doubly fed induction machine, measuring a rotor current of the doubly fed induction mac...
11/03/2011
20110062710MULTI-STAGE CONTROLLED FREQUENCY GENERATOR FOR DIRECT-DRIVE WIND POWER
A multi-sage controlled frequency generator is described that has a low size, weight and cost. The new generator requires an electronic controller that requires only 25% of the total generated power (100%) when the generator shaft speed varies by +/−25% around its syn...
03/17/2011
20100327820ACTIVE DAMPING FOR SYNCHRONOUS GENERATOR TORSIONAL OSCILLATIONS
A generator control unit (GCU) provides active damping of a synchronous generator by monitoring the speed of the synchronous generator and detecting oscillations in the monitored speed. The oscillations are indicative of torsional oscillations within the mechanical driv...
12/30/2010
20100164236ENGINE GENERATOR SET CONTROL
An engine generator set control system includes an engine, a generator, a frequency selection interface, a voltage regulator, and a controller. The engine includes a variable geometry turbocharger (VGT) and a crankshaft. The controller generates a signal indicative of a...
07/01/2010
20100148588Genset control system implementing engine synchronization
A control system for use with a genset is disclosed. The control system may have a bus configured to receive power from the generator set, and a first sensor configured to generate a first signal indicative of a characteristic of power on the bus. The control system may...
06/17/2010
20100066098CONTROLLING PROPELLER ROTOR OVERSPEED
An engine having at least one stage of propeller rotor blades, and a load, the at least one stage being associated with electrical generation means to generate electricity for the load. The load is switchable into a high load state in the event of an overspeed signal fr...
03/18/2010
20100052323MAGNETICALLY GEARED GENERATOR
The present invention provides a magnetically geared generator including an inner winding unit having a first number of pole pairs, an outer winding unit arranged coaxially around the inner winding unit and having a second number of pole pairs, and a rotatable magnetic ...
03/04/2010
20090322084Energy Systems, Energy Devices, Energy Utilization Methods, and Energy Transfer Methods
Energy systems, energy devices, energy utilization methods, and energy transfer methods are described. In one arrangement, energy utilization methods include providing first energy from a power grid to an induction generator at a first moment in time; using the inductio...
12/31/2009
20090315522SELF-EXCITED CONTROLLED FREQUENCY GENERATOR SYSTEM WITH BI-DIRECTIONAL CONVERTER
A controlled frequency generating system (CFG) may be constructed with a main generator and an exciter driven by a common shaft. Excitation power may be provided from the common shaft; as distinct from prior-art systems which may require independent excitation power sou...
12/24/2009
20090302607DOUBLE FED SYNCHRONOUS GENERATOR MOTOR
A double fed synchronous generator motor which is coupled to a reversible pump-turbine and operated while switched to a power generating operation mode or a pumping operation mode, is equipped with a controller for controlling the double fed synchronous generator motor ...
12/10/2009
20090278510System for generating electrical power
Described is a system for generating electrical power, which system includes a turbine that is mechanically connected to a generator, which in turn is connected via a multiphase transformer to a load. In at least one embodiment, at least two counter-connected switching ...
11/12/2009
20090273192Doubly fed axial flux induction generator
A doubly fed axial flux induction generator may include a prime mover configured to provide mechanical energy. The doubly fed axial flux induction generator may also include a rotor assembly coupled to the prime mover, wherein the prime mover is configured to rotate the...
11/05/2009
20090256522Electric Vehicle Battery Charging by Driving the Propulsion Shaft
A system and method for charging a battery of an electric vehicle is disclosed. An embodiment of the present invention enables an internal motor of an electric vehicle to be backdriven. When the internal motor is backdriven, it operates as an electric generator to produ...
10/15/2009
20090251109SYSTEMS AND METHODS INVOLVING STARTING VARIABLE SPEED GENERATORS
An exemplary method for starting a generator, the method comprising, starting a rotor with an AC voltage across the rotor. Starting a stator. Increasing a speed of the rotor....
10/08/2009
20090250943SYSTEMS AND METHODS INVOLVING OPERATING VARIABLE SPEED GENERATORS
A method for operating an asynchronous generator comprising receiving an indication that a power grid frequency is reduced. Responsive to the receiving the indication, reducing a speed of the asynchronous generator from a first speed to a second speed for a first time p...
10/08/2009
20090230680Power control system and method
This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the ...
09/17/2009
20090224540Power control system and method
This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the ...
09/10/2009
20090212747Power control system and method
This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the ...
08/27/2009
20090212561Power control system and method
This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the ...
08/27/2009
20090206601Power control system and method
This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the ...
08/20/2009
20090184522PERMANENT MAGNET ALTERNATOR SPEED DETECTION CIRCUIT WITH FEEDBACK AT LOWER SPEEDS
A permanent magnet alternator is driven by a turbine engine to supply three phases of power to a control circuit for the engine. A shunt regulator delivers current to the control circuit, and a voltage supply is also included to deliver power for a period of time as the...
07/23/2009
20090134847Target regulation voltage setting apparatus
The target regulation voltage setting apparatus for a vehicle on which a vehicle alternator is mounted includes a first function of calculating a large first-order delay and a small first-order delay of a rotational speed of the vehicle alternator at regular time interv...
05/28/2009
20090121688POLE COUNT CHANGING GENERATOR
Disclosed is a pole count changing generator capable of altering the number of poles contained within a generator. This pole count change is accomplished by changing the path through which electrical current is capable of traveling in response to a control signal sent t...
05/14/2009
20090108676Power system with method for adding multiple generator sets
A method of operating a power system is provided. The power system has a plurality of generator sets and a bus. The method monitors the bus and generator sets disconnected from the bus. The method supplies to a control device information associated with the operating st...
04/30/2009
20090085354SYSTEM AND METHOD FOR CONTROLLING TORQUE RIPPLES IN SYNCHRONOUS MACHINES
A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power convert...
04/02/2009
20090066297Power Generation Apparatus Using AC Energization Synchronous Generator And Method Of Controlling The Same
A power generation apparatus and method includes an AC energization synchronous generator, a switching device which connects to a network disposed on a stator side of the AC energization synchronous generator, an energizing device which applies a variable frequency AC t...
03/12/2009
20090058374HIGH EFFICIENCY ALTERNATOR
A high efficiency alternator capable of supplying extreme high power output with maximum dissipation of heat. Preferably, the alternator includes dual field coils mounted stationary around a common shaft and dual brushless rotors. The alternator may also include three o...
03/05/2009
20090051332System and method for electric current and power monitoring and control of a generator
A control device measures a voltage drop across a conductor in a generator to determine and control the total generator output current. A temperature of the conductor is also measured to improve the accuracy. The control device may further improve on the accuracy by com...
02/26/2009
20090045691FIELD CONTROLLABLE ROTATING ELECTRIC MACHINE SYSTEM WITH MAGNETIC EXCITATION PART
In a magnet-exciting rotating electric machine, a magnetic excitation part for supplying a magnetic flux between a magnetic salient pole and an armature is composed to be divided into two so as to be capable of being relatively displaced. In this structure, the magnetic...
02/19/2009
20080303490GENERATOR WITH QUADRATURE AC EXCITATION
A generator system is configured to supply two phase excitation current from an exciter rotor to a main generator rotor. When driven by a variable speed prime mover, the generator system provides relatively constant frequency AC power by independently controlling the ma...
12/11/2008
20080303279Generating Unit and Method For Producing a Current With a Predetermined Network Frequency
According to the invention, a drive is embodied to drive a rotor at a variable rotational frequency; the rotor has a winding that is embodied to produce a rotary field magnetomotive force of a generator, with a rotor rotary field frequency which is variable in relation ...
12/11/2008
20080303280ENGINE START SYSTEM WITH QUADRATURE AC EXCITATION
A starter-generator system may be used to supply sufficient starting torque to start an aircraft main engine. The main starter-generator stator winding may be connected to a constant frequency (CF) power source to create a rotating field in the main starter-generator ai...
12/11/2008
20080265846METHOD 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 osci...
10/30/2008
20080258693Method for Controlling an Electromagnetic Retarder and System Including Retarder and a Control Unit
A method for controlling an electromagnetic retarder from a control unit said retarder including an electrical generator. The inventive method is used to determine an excitation current intensity to be injected into the primary coils of the generator of the retarder, sa...
10/23/2008
20080203978Frequency converter for a double-fed asynchronous generator with variable power output and method for its operation
A frequency converter circuit for a double-fed asynchronous generator with a variable power output, which can be connected to a voltage network contains a rotor rectifier, which can be connected to the rotor of the asynchronous generator, a network frequency converter, ...
08/28/2008
20080191483Power generating device utilizing hydrodynamic force
The power generating device (1000) has a vane (1200) rotated by hydrodynamic force from a fluid; a generator motor (100); a flow velocity measuring unit (1130); a rotation speed measuring unit; and a control unit (200). In the event th...
08/14/2008
20080191482Apparatus for controlling power generation for vehicle
An apparatus for controlling generation of power to be generated by a generator driven by an engine mounted on a vehicle equipped with an electrical load operative on the power from the generator, the generator including a field winding to which current is supplied on t...
08/14/2008
20080186000Output control apparatus and method for field winding type dynamo-electric machine
A control apparatus for controlling an exciting current of a field winding type dynamo-electric machine having an exciting winding so as to obtain a demanded output thereof comprises an exciting current detecting circuit being configured to detect an exciting current of...
08/07/2008
20080150494Pole shifting generator
An apparatus and method generate electric current within a specified frequency range from a rotor operating within a broad range of rotational speeds by reducing the number of poles of the generator at higher rotational speeds. At higher rotational speeds, the generator...
06/26/2008
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