618 results about "Engine-generator" patented technology

The invention discloses a system for providing mobile electric power. Equipment needed by mobile electric power is integrated on three transportation tools, so that one overall transportation can be combined, the connecting time needed by field operation is greatly shortened, and combination flexibility and high adaptability are achieved. An exhaust system can perform side connection and also canperform top connection, so the connection mode is flexible; and a gas inlet system is axially connected with a gas turbine engine and an electric generator, so that unnecessary bends are avoided, theloss of gas inlet pressure is small and the flowing direction is stable.

A method and apparatus for paralleling engine generators. One or more closed transition transfer switches (CTTSes) are coupled to two or more engine generators. A system controller is programmed to operate the one or more CTTSes so that each of the generators provides an emergency power and so that the generators may simultaneously supply emergency power to the power bus.

An engine generator including a soundproofing case that houses an engine and a generator therein. The engine includes an engine-side cooling fan and an engine-side inlet. The generator includes a generator-side cooling fan and a generator-side inlet. The engine generator further includes an engine-side partition and a generator-side partition fixedly disposed within the soundproofing case to define a chamber to be cooled that houses sections of the engine and the generator that are to be cooled, an engine-side air intake chamber that the engine-side inlet faces, and a generator-side air intake chamber that the generator-side inlet faces. The soundproofing case includes a cover part whose inside face is in intimate contact with the outer peripheries of the engine-side and generator-side partitions and has an exhaust vent in a part corresponding to the chamber to be cooled.

A frame type engine generator having an engine, a generator connected with the engine and driven by the engine and a supporting frame for supporting the engine and generator therein is closed at the front surface of the supporting frame with a control panel, closed at the rear surface thereof with a muffler cover and closed at the top surface thereof with a fuel tank. To raise a noise reduction performance of the engine generator, the left side surface of the supporting frame is closed with a left panel and the right side surface thereof is closed with a right panel. The left and right panels have a double-walled structure including an inner panel and an outer panel, respectively. The left and right panels are detachably attached to the supporting frame through a rubber seal, respectively.

A thermoacoustic engine-generator that converts waste heat into electrical power. Thermal energy is converted to useful work via temperature-pressure amplification of periodic acoustic traveling waves in a compressible working fluid which cause the armature of a linear alternator to reciprocate and produce alternating current electrical energy. An external oscillator initiates reciprocating motion in the armature of a linear alternator. The armature is a combination fluid pump and fluid motor as well as the induction armature of a linear alternator. The pump end of the armature generates an acoustic traveling wave with each cycle of the armature. The traveling wave enters a waveguide-heat exchanger and is amplified in temperature, pressure and propagation velocity by thermal conduction of energy through the wall of the waveguide. The amplified traveling wave acts upon the opposite end of the armature, causing it to reciprocate within the magnetic field windings of the generator, and generate an electrical current as well as a new acoustic traveling wave. When the operating temperature gradient is attained across the hot and cold heat exchangers, the thermoacoustic engine-generator becomes acoustically resonant and self-regenerative, and will continue to operate as long as the thermal gradient is maintained. The theoretical conversion efficiency is dependent on the thermal gradient, and is 63% of Carnot.

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 of the generator is achieved by electronically manipulating the electric load, and / or adjusting excitation levels at the generator's magnetic fields, so as to change engine / generator equilibrium speed. In a beneficial embodiment, the generator is powered by an energy storage unit, to temporarily act as a motor and rotate the engine when starting, and during power absorbing strokes.

A generator support plenum for a engine-generator set for installation on a pickup truck in an RV or on a boat, for example, sits in or under or forms a part of an enclosure for the engine-generator set and defines cool air flow paths into the set for cooling the engine and generator and aspirating the engine. The plenum also defines a warm air outlet duct for escape of the cooling air. In the outlet duct a diffuser couples to the exhaust of the engine to mix hot exhaust with the much cooler escaping cooling air that has passed over the engine and generator. The diffuser eliminates the effect of the extreme hot exhaust gas and muffles the engine sound. Insulation coating the internal surfaces of the plenum further suppresses engine noise.

The present invention provides a method and a device for providing a three-phase electrical system alternating voltage for an electrical system of an aircraft, a plurality of voltage sources being provided which comprise at least one engine generator and a further voltage source, in particular a fuel cell, comprising one or more frequency converters for converting an alternating voltage of variable frequency provided by the respective engine generator into a first output alternating voltage and comprising at least one cyclo-inverter for cyclo-inverting a voltage provided by the respective further voltage source into a second output alternating voltage which is synchronous with the first output alternating voltage and constitutes the electrical system alternating voltage.

In a start control apparatus for an engine generator having a booster adapted to boost an output of a battery, there is provided an engine starter adapted to supply the boosted battery output to an output winding as a motor current to start the engine, and it is configured to determine whether a position of the piston is before a top dead center (TDC) when the motor current is to be supplied to the winding, and the motor current is increased by an increment when the piston position of the engine is determined to be before the TDC.

The present invention relates to a power system utilizing an engine generator or public power with AC source, wherein the power system particularly has the characteristics that the maximum output current thereof is limited by electromagnetic effects, and / or constant current or nearly constant current output thereof is set to be lower than the maximum output current, for powering a load, and charging a battery, or jointly powering a load with a battery; when an engine generator set is utilized to be power supply, during operation, the engine operates with the best brake specific fuel consumption and / or the range of revolutions and torque for better energy saving.

The present application and the resultant patent provide a gas turbine engine generator system. The gas turbine engine generator system may include a turbine, a generator, and a shaft. The turbine drives the generator via the shaft. A torsional damping coupling may be positioned about the shaft so as to limit the transmission of torque to the turbine during a generator based fault event.

A portable engine generator, has a box-shaped case defining an internal space for holding an engine and an electric generator to be driven by the engine. The case is provided with carrying handles. The portable engine generator is provided with a cooling air passage through which fresh air as cooling air flows into the internal space while the engine is in operation. An inward depressed part is formed in a front cover of the case on the side of the internal space with respect to the carrying handles The carrying handles and the inward depressed part define the cooling air passage. The cooling air passage serves as a hand space into which human hand is inserted to grip the carrying handles.

A method and apparatus for paralleling engine generators. One or more closed transition transfer switches (CTTSes) are coupled to two or more engine generators. A system controller is programmed to operate the one or more CTTSes so that each of the generators provides an emergency power and so that the generators may simultaneously supply emergency power to the power bus.