Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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.
| Application No. | Application Title | Issue Date |
| 20110006547 | Method Of Controlling A Variable Speed Constant Frequency Generator A method of controlling an engine-driven, electrical generator is provided. The generator generates an output voltage at a frequency with the engine running at an operating speed. The method includes the steps of connecting the generator to a load and varying the operat... | 01/13/2011 |
| 20100320775 | CONTROL DEVICE AND METHOD OF A GAS TURBINE ELECTRIC ENERGY PRODUCTION PLANT A control device of a gas turbine electric energy production plant, which delivers a power at a frequency presents power control means for controlling the power delivered by the plant according to a reference power value, and frequency control means, for determining cor... | 12/23/2010 |
| 20100225122 | AUXILIARY POWER UNIT WITH DUAL USE OF SPEED SIGNALS An auxiliary power unit has a speed sensor for sensing a speed of operation of the auxiliary power unit. The speed sensor sends a signal to an electronic control box. The electronic control box is operable to control the auxiliary power unit. A branch line is for commun... | 09/09/2010 |
| 20100164236 | ENGINE 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 |
| 20100109344 | Power system having transient control A power system is disclosed. The power system may have an engine with a desired operating speed range, and a generator mechanically driven by the engine to produce electrical power directed to an external load. The power system may also have a power storage device assoc... | 05/06/2010 |
| 20100066097 | METHOD TO ESTIMATE THE OUTPUT CURRENT OF AN AUTOMOTIVE GENERATOR (ALTERNATOR) A control system of a vehicle comprises a current estimation module, a current sensor, and a current diagnostic module. The current estimation module determines an estimated output current of a generator of the vehicle based on an engine speed when the generator is oper... | 03/18/2010 |
| 20100066098 | CONTROLLING 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 |
| 20100019507 | INVERTER GENERATOR In an inverter generator having a generator unit driven by an internal combustion engine, an inverter that inverts converted direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that comprises an microcomputer... | 01/28/2010 |
| 20100013243 | Power Turbine Speed Control Using Electrical Load Following A power turbine speed control system for a turbo-shaft type gas turbine engine that has a gas generator compressor spool and a power turbine spool and drives an electrical generator that powers at least one electrical load by way of at least one electrical bus, comprise... | 01/21/2010 |
| 20090273192 | Doubly 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 |
| 20090188227 | Regulated Output Voltage Generator-Set Applied To Mobile Equipment in the Turf Industry A turf maintenance vehicle includes an internal combustion engine and an energy converting device that converts mechanical energy from the engine to electric energy. The vehicle also includes at least one subsystem powered by the electric energy from the energy converti... | 07/30/2009 |
| 20090184522 | PERMANENT 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 |
| 20090058100 | Engine flare management system and method A method of controlling an internal combustion engine during a start up phase, include cranking the internal combustion engine to initiate the start up phase and controlling an alternator load so as to increase load on the engine during at least a part of the start up p... | 03/05/2009 |
| 20080290666 | GENERATOR POWER PLANT PROTECTION SYSTEM AND METHOD A typical power plant has a plurality of generators; at least one load; at least one bus interconnecting the generators and the at least one load. The plant is operated on an uncorrected droop configuration for speed control and voltage control. The plant further includ... | 11/27/2008 |
| 20080277945 | Protection techniques for a back-up electric power system One embodiment of the present application is directed to a protection technique for a back-up electric power generation system. This system includes an electric power generator, generator control circuitry, electrical output sensors to provide one or more corresponding ... | 11/13/2008 |
| 20080258474 | Engine starting control apparatus for hybrid vehicle A control apparatus for a drive system of a hybrid vehicle including (a) an electrically controlled differential portion which has an engine, a first electric motor, and a differential mechanism operatively connected to the engine and the first electric motor and a diff... | 10/23/2008 |
| 20080246285 | Vehicular system capable of suitably controlling engine speed and gear ratio according to battery charge state A vehicular system includes a battery, an engine, an electric generator that is driven by the engine to generate electric power and thereby charge the battery, a first control apparatus that controls the battery and electric generator, a drive shaft, a CVT that transmit... | 10/09/2008 |
| 20080197631 | WAVE-POWER SYSTEM AND METHOD FOR GENERATING ENERGY AT CONSTANT ROTATIONAL SPEED AT VARIABLE SIGNIFICANT WAVE HEIGHTS AND PERIODS A wave energy conversion system or device is provided which includes a hull that serves as a float, moving up and down with incoming waves. The power take-off system contained within the hull comprises a longitudinal main rotary shaft upon which a series different diame... | 08/21/2008 |
| 20080191492 | Machine having electrical power system and method A machine and electrical power system includes a generator having a speed range that includes a resonance speed associated with resonance vibrations of the system. A drive coupling is disposed between the generator and an engine configured to rotate the generator and is... | 08/14/2008 |
| 20080185847 | Vehicle control system A control system for a vehicle has an engine control unit for an engine and a generator control unit for a power generator driven by the engine. The engine control unit calculates a permissive power generation torque, which is permitted to be used by the power generator... | 08/07/2008 |
| 20080161974 | Environmental control and power system A self-contained environmental control and power system (ECAPS) unit including an HVAC system with at least one variable-speed compressor driven by a DC motor, wherein the HVAC system is adapted to condition air and output the conditioned air and a variable-speed diesel... | 07/03/2008 |
| 20080157539 | Electrical power supply system for motor vehicle A power supply control apparatus for controlling an electric generator of a vehicle limits the rate of change of a power supply voltage to a predetermined variation rate range, when the change is caused by operations to control the charge condition of the vehicle batter... | 07/03/2008 |
| 20080129115 | Vehicular outboard power conversion apparatus, system and method A fuel-efficient auxiliary power generation, conversion, and supply system configured within the periphery of a vehicular conveyance, and typically including a plurality of batteries, a power generator, an internal combustion engine, and an instrument control assembly i... | 06/05/2008 |
| 20080125924 | SYSTEM, METHOD, AND COMPUTER SOFTWARE CODE FOR OPTIMIZED FUEL EFFICIENCY EMISSION OUTPUT, AND MISSION PERFORMANCE OF A DIESEL POWERED SYSTEM A method for operating a diesel powered system having at least one diesel-fueled power generating unit, the method including evaluating an operating characteristic of the diesel powered system, comparing the operating characteristic to a desired value to satisfy a missi... | 05/29/2008 |
| 20080122228 | Method, apparatus, signals and media, for selecting operating conditions of a genset A method and apparatus for selecting optimal operating conditions of a genset is disclosed. The genset includes an engine coupled to an electrical power generator, the genset having a plurality of operating points each including an engine speed value and a generator ele... | 05/29/2008 |
| 20080093865 | HYBRID WORKING MACHINE The present invention is to drive a hydraulic pump and a generator motor by an engine, to electrically charge a battery by a generator action of the generator motor, and to drive the generator motor by electric power of the battery so as to assist the engine. A governor... | 04/24/2008 |
| 20080093864 | HYBRID WORKING MACHINE The present invention is to drive a hydraulic pump and a generator motor by an engine, electrically charge a battery by a generator operation of the generator motor, and assist the engine through driving the generator motor by electric power of the battery. On the premi... | 04/24/2008 |
| 20080093851 | Method and apparatus for controlling charging operations for battery An apparatus controls a state of charge (SOC) of a battery mounted on a vehicle provided with an internal combustion engine driving a generator mounted on the vehicle. The generator charges the battery. In the apparatus, a setting unit sets a target value directed to co... | 04/24/2008 |
| 20080023965 | Auxiliary power unit for transportation vehicle An auxiliary power unit for providing power and HVAC to a vehicle. The auxiliary power unit is mounted to the vehicle in a variety of ways, but such that it can be readily moved away from the vehicle for service and maintenance. The power unit has a removable condenser ... | 01/31/2008 |
| 20070246942 | ELECTRICAL POWER REGULATION FOR A TURBOGENERATOR AND GENERATOR ASSOCIATED WITH AN INTERNAL COMBUSTION ENGINE A speed monitor for establishing a lower threshold and an upper threshold for a speed of a rotor or shaft of a turbogenerator. A speed detector detects speed data or a speed signal for a rotor or shaft associated with a turbogenerator. A turbogenerator controller contro... | 10/25/2007 |
| 20070210582 | Machine with an electrical system A machine includes an electrical power source, which may include a mechanical power source and an electric generator drivingly connected to the mechanical power source. The machine may also include one or more power loads connected to the electric generator. Additionall... | 09/13/2007 |
| 20070096471 | ACTIVE ANTI-ISLANDING SYSTEM AND METHOD An engine control system suited for use with an engine that outputs electrical power to a local load and is electrically connected to an electrical grid. The engine generates power at a power output value and the load consumes power at a load value. The engine control s... | 05/03/2007 |
| 20060279087 | Inverter controlled generator set An inverter controlled generator set including: a power supply unit that uses a generator driven by an engine as a power supply to output a DC voltage; an inverter device that converts the output voltage of the power supply unit into an AC voltage; and a rotational spee... | 12/14/2006 |
| 20060152198 | Method for exercising a stand-by electrical generator A method is provided for exercising an engine-driven, electrical generator. The generator has a first operation mode wherein the generator generates a predetermined output voltage at a predetermined frequency with the engine running a predetermined operating speed and a... | 07/13/2006 |
| 20060137651 | Control device for engine driven vehicle incorporating generator A control device for controlling an engine driven vehicle that drives a generator by an engine to supply power to an external load when the vehicle is stopped, including: rotational speed limiting means for controlling to limit a rotational speed of the engine to a limi... | 06/29/2006 |
| 20060089233 | Control device for engine driven vehicle incorporating generator An engine driven vehicle having a function of supplying power to an external load from a generator driven by an engine that is operated in a power generation mode while the vehicle is stopped, including: throttle position determination means for determining whether a th... | 04/27/2006 |
| 20050116474 | Electronically controlled engine generator set An electronically controlled electrical power generator comprises a generator driven by a heat engine, operated by control means, and carrying an electrical load. Operation of the heat engine is at wide open throttle. Control over engine operation and electrical output ... | 06/02/2005 |
| 20050110278 | MULTI-FUNCTIONAL POWER SOURCE A multi-functional power source includes a generator and an engine arrangement to drive a crankshaft to rotate. The generator includes a generator housing, a rotor which couples with the crankshaft and includes a magnetic element coaxially and rotatably disposed within ... | 05/26/2005 |
| 20050104377 | Inverter controlled generator set and method for controlling the same A method for controlling an inverter controlled generator set which comprises a DC power source section having as a power source a generator driven by an engine and an inverter which converts an output of said DC power source section into an AC output, the method compri... | 05/19/2005 |
| 20050093303 | Automatic management of the health of an electrical storage device A system and method for maintaining the health of an electrical storage device measures revolutions per unit time of an engine shaft of an internal combustion engine. A status signal is provided indicating whether the engine shaft is disengaged or engaged with a remaind... | 05/05/2005 |
