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| Number | Title | Issue Date |
| 7939953 | Micro scale fischer-tropsch and oxygenate synthesis process startup unit A mobile system for providing start-up electrical power to a micro scale liquid hydrocarbon and/or oxygenate synthesis plant is provided including a portable gas or liquid fueled electrical generator, a steam turbine, a plant generator mechanically coupled to the st... | 05/10/2011 |
| 7719126 | System and method for powering the cabin of a truck A system and method for providing continuous AC/DC current for powering the appliances used by a truck driver in the cabin of transportation trucks in an economic and environment-friendly manner especially in countries that enforce non-idling laws on heavy trucks. T... | 05/18/2010 |
| 7605483 | Integrated electrical power extraction for aircraft engines An aircraft power system includes an aircraft engine having a plurality of engine spools, a plurality of AC generators driven by at least one spool, wherein each AC generator is independently operational to supply AC power to a respective AC power bus or a respectiv... | 10/20/2009 |
| 7468561 | Integrated electrical power extraction for aircraft engines An aircraft power system includes an aircraft engine having a plurality of engine spools, a plurality of AC generators driven by at least one spool, wherein each AC generator is independently operational to supply AC power to a respective AC power bus or a respectiv... | 12/23/2008 |
| 7363825 | Non-contact position sensor housing using existing torque sensor probe A sensors casing supports torque sensors and the position sensors and segment magneto-sensitive elements to detect the relative rotation between an input shaft and an output shaft and the angular position of the shaftsin a steering column housing. The sensor casing ... | 04/29/2008 |
| 7331303 | Floating power plant A floating power plant includes a hull having a structure suitable for being movable at sea; a plurality of watertight bulkheads placed in the hull to a height of a freeboard deck, thus partitioning the interior of the hull into a plurality of watertight chambers; a... | 02/19/2008 |
| 7319307 | Power balancing of multiple synchronized generators Power balancing techniques for a synchronous power generation system are provided. One exemplary method for balancing power in a synchronous generator system includes determining an output power characteristic of a synchronous generator driven by a prime mover and c... | 01/15/2008 |
| 7292009 | Hybrid type working machine Simplifying the controller of hybrid type drive unit. The output of a generator driven by engine is connected directly to a motor 7 through a converter or switching circuit 10 without being charged on any battery. The output of each phase of the genera... | 11/06/2007 |
| 7250688 | Narrow range variable frequency starter/generator system A starter/generator system for a gas turbine engine used in aeronautical applications that couples a single dynamoelectric machine to the gas turbine engine through a torque converter in a starting mode, and engages the engine to the dynamoelectric machine through a... | 07/31/2007 |
| 7235891 | Power system having generator driven by engine An apparatus for controlling the operation of power conditioners (10) for supplying the generated power to an external power system such as a commercial power system, in which power conditioners (10) are interconnected to an external power system, the ... | 06/26/2007 |
| 7091702 | Digital real and reactive load division control The present invention is a generator control system where each generator in the system has an associated controller. Each controller communicates generator data or information with the other controllers in the generator control system. Each of the controllers includ... | 08/15/2006 |
| 7061131 | Method and system for optimizing energy storage in hybrid off-highway vehicle systems and trolley connected OHV systems A hybrid energy system for propelling an off-highway vehicle includes an engine rated at a first power capacity, and a power converter driven by the engine for providing primary electric power. A traction motor system receives the primary electric power, the tractio... | 06/13/2006 |
| 6933622 | Diesel-electric locomotive and traction grouping composed of at least two diesel-electric locomotives A diesel-electric locomotive includes an assembly including a diesel engine and a generator, a drive unit and a control device, connectable to control devices of other locomotives. Further, a traction grouping includes at least two such diesel-electric locomotives, ... | 08/23/2005 |
| 6590298 | Electrical power generation unit for welding including electromechanical feedback mode regulation The invention provides a method of providing a substantially stable supply of electrical energy under loading conditions. The method includes the steps of: 1. connecting a first generator connectably with a drive shaft of a drive means; 2. connecting a se... | 07/08/2003 |
| 6522040 | Palm top manual operated generator A palm top manual operated generator includes a housing, a power generating unit, a driving set, a handle and a spring. The housing has a cambered rack which penetrates into the housing and is engaged with the first speed change gear of the driving set. A... | 02/18/2003 |
| 6218813 | Cross current compensation system and method A cross current compensation system for controlling reactive currents in a generator is provided. A control system for receives voltage feedback from a first generator of a plurality of generators and cross current feedback from at least a second generato... | 04/17/2001 |
| 6188139 | Integrated marine power distribution arrangement A marine power distribution arrangement includes a turbine-driven AC generator which supplies AC power at a frequency of 240 Hz through a switchgear unit to a transformer and a first power converter by which the power is converted to a variable frequency,... | 02/13/2001 |
| 6172427 | Electric energy supply system for vehicle An electric energy supply system for a vehicle includes a power output shaft electric power generation unit and an exhaust gas electric power generation unit for generating electric power by utilizing a power energy and an exhaust gas energy. A storage ba... | 01/09/2001 |
| 6107691 | Methods for utilizing the electrical and non electrical outputs of fuel cell powered vehicles The present invention provides a method and apparatus for generating electrical power from multiple vehicles powered by fuel cells while the vehicles are parked in a parking lot. A plurality of spaced-apart electrical receptacles are provided for receivin... | 08/22/2000 |
| 6066897 | Automatic load distributing apparatus for generator and method of controlling same An automatic load distributing apparatus for generators is of simple construction and occupies a small space and can automatically distribute loads evenly on respective engines upon parallel load operation of generators of different capacities and provide... | 05/23/2000 |
| 5828136 | Combined power system using a rotation speed and torque detector A combined power system includes an active power source and an auxiliary power source. The rotation speed signal of the active power source and the rotation torque difference between the active power source and an output shaft of the combined power system... | 10/27/1998 |
| 5767584 | Method for generating electrical power from fuel cell powered cars parked in a conventional parking lot The present invention provides a method and apparatus for generating electrical power from multiple vehicles powered by fuel cells while the vehicles are parked in a parking lot. A plurality of spaced-apart electrical receptacles are provided for receivin... | 06/16/1998 |
| 5646458 | Uninterruptible power system with a flywheel-driven source of standby power An UPS (uninterruptible power system) includes an UPS power conditioning unit that provides conditioned AC power to a critical load. The UPS power conditioning unit includes a variable speed drive that operates in response to AC utility power or to a stan... | 07/08/1997 |
| 5550410 | Gas turbine electrical power generation scheme utilizing remotely located fuel sites A remote electrical energy generating and distribution system is provided wherein a plurality of combustion turbine generators are located at respective remote sites having deposits of fossil fuel. The fossil fuel is thereby converted into electrical ener... | 08/27/1996 |
| 5536976 | Multiple service load solid state switching for controlled cogeneration system An electrical generation system and method for switching a plurality of isolated circuits between a generator and an electrical source. A current signal of each isolated circuit is sensed and the current signal is emitted to a computer. A generator output... | 07/16/1996 |
| 5419112 | Gas turbine powerplant A double ender powerplant including a first engine having a compressor for producing a downstream axial flow, a combustor, a turbine coupled to the compressor through a shaft, and means for attaching a load coupled to the shaft adjacent and downstream fro... | 05/30/1995 |
| 4900944 | Booster unit for diesel electric locomotive A booster unit for diesel electric locomotive having a frame-mounted diesel engine, a main traction generator and a series of traction motors connected to said generators is disclosed. It is comprised of a gas turbine mounted on the frame adjacent to the ... | 02/13/1990 |
| 4808835 | Power generation cassette type power plant for marine electric propulsion and a controller thereof A power generation cassette type power plant for marine electric propulsion includes a multiplicity of power generation units each being formed as a power generation cassette including a power generator, a prime mover, for example an internal combustion e... | 02/28/1989 |
| 4752697 | Cogeneration system and method A cogeneration system including a heat engine driving an electrical generator coupled to electrical lines at a site serviced by a utility is disclosed. The system includes supervisory means for monitoring the electrical energy and/or power supplied by the... | 06/21/1988 |
| 4684813 | Heterodyne system for electric power generation Two high frequency AC generators are enabled to deliver a low frequency AC output to a load, by means of heterodyning and rectifying circuitry.... | 08/04/1987 |
| 4677307 | Process for the realization of cogenerative supply of electricity and heat (cogeneration), particularly in industrial power plants Subject of the invention is a process for the realization of cogenerative supply of electricity and heat, and in given case for their combination with waste heat recovery, particularly in case of combined (gas-steam) cycle industrial power plants. The ess... | 06/30/1987 |
| 4572961 | Constant speed drive with compensation using differential gears The electrical supply system on aircraft may employ a constant speed drive (CSD) to convert variable engine speed to constant speed for operation of synchronous 400 Hz electrical generators. The heart of these devices is a differential which mechanically ... | 02/25/1986 |
| 4521692 | Motor generator shutdown circuit for extended ridethrough This invention relates to device for detecting a threshold value of the frequency of an input signal. A gate signal is generated from the input signal, whose period has a relationship to the frequency of the input signal. A counter counts pulses from an o... | 06/04/1985 |
| 4498014 | Electric generating system An electric generating system is provided and consists of an external power source, an expansion engine connected to the power source, a large generator electrically connected to output of the expansion engine, a housing having a well, a pair of bearings ... | 02/05/1985 |
| 4443707 | Hydro electric generating system A hydro electric generating system to produce power by changing the potential energy of water to kinetic energy to drive a turbine that is coaxially connected to a generator. Water from the ambient enters the reservoir and is directed by a valve to a cond... | 04/17/1984 |
| 4125780 | Multiple fluid expansion energy extraction method and apparatus This is a method, and an apparatus for performing said method, wherein the latent energy in expansible fluids is converted to mechanical or electrical energy or the like by the utilization of a multiplicity of expanders wherein succeeding expanders derive... | 11/14/1978 |
| 3930367 | Fluid flow control system In a turbine powered generating system the rate of fuel flow for auxiliary firing of a steam turbine is automatically controlled to control the generation of steam for the turbine in accordance with turbine operating parameters and system power demands. F... | 01/06/1976 |
