Power plants inventions 04/06

20060086077 - High-emissivity infrared coating applications for use in hirss applications: A high emissivity (Hi-E) coating for use on the exhaust baffles of HIRSS systems. HIRSS systems were developed to reduce the infrared (IR) signature of helicopter engines. Increasing operating temperatures of helicopter engines have made the HIRSS systems less effective. An infrared coating applied over selected portions of the HIRSS...

20060086078 - Universal carnot propulsion systems for turbo rocketry: Turbofan jet engines utilizing the Carnot cycle for improved performance with isothermal compression of combustion air and, in part, isothermal expansion of thermally heated air, the engines having a turbofan compressor rotor with hollow fan blades in a core bypass passage through the engine and an annular, peripheral thermal chamber...

20060086079 - Device and method for dosing and transporting dry urea, especially during the implementation of the scr method in motor vehicles: In a device for dosing and transporting dry urea, e.g., for implementing the SCR method in a motor vehicle, the device includes a storage vessel containing the dry urea in the form of pellets, the wall of the storage vessel having an opening to which a transport line is connected...

20060086080 - Engine exhaust gas cleaning method and system: An engine exhaust gas cleaning method and system, which can effectively reduce emission amounts of particular components, such as NOx, contained in exhaust gas by adding an additive, such as urea water or light oil, into an exhaust passage, which is adaptable for a reduction of the cleaning rate caused...

20060086081 - Method for regenerating an exhaust gas catalyst: The invention relates to a method for regeneration of a nitrogen oxide storage catalyst for a direct injected compression ignition engine. According to the invention, regeneration can be accomplished by adjusting air flow into the engine and controlling fuel injection to give a number of small part-injections during an expansion...

20060086083 - In-cylinder method for air/fuel ratio control: The invention relates to a Method of purging a lean NOx trap (LNT) coupled downstream of a direct injection internal combustuion engine with post injection for achieving a purge air/fuel (A/F) ratio. At least two separate post injections are applied in the expansion stroke after a main injection train, so...

20060086084 - Method for operating an exhaust-gas treatment device of an internal combustion engine, and device for carrying out the method: A method for operating an exhaust-gas treatment device of an internal combustion engine and a device for carrying out the method, in which a reagent, whose pressure is measured by a reagent pressure sensor, is introduced into the exhaust-gas area upstream from the exhaust-gas treatment device. First the reagent pressure...

20060086082 - Method for the post-treatment of exhaust gases by subsequent injection of fuel in a diesel-type internal combustion engine provided with a pre-catalyst and a particulate filter: A process is proposed for exhaust gas aftertreatment by afterinjection of fuel in a diesel internal combustion engine with a precatalyst and a particulate filter, in which process the afterinjection NE is performed as a function of the temperature in the area of the precatalyst Tcat and of the state...

20060086085 - De-sulfurization of a nox adsorber catalyst in a diesel engine exhaust system: De-sulfurizing a NOx adsorber catalyst (48) without significantly increasing the temperature of exhaust gases leaving the engine exhaust manifold (42) by using a diesel oxidation catalyst (46) between the exhaust manifold and the NOx adsorber catalyst to elevate exhaust gas temperature entering the NOx adsorber catalyst to suitable de-sulfurizing temperature...

20060086086 - Hydraulic cylinders and plug with hydraulic cylinder: The invention regards a hydraulic cylinder (1) or a plug comprising a hydraulic cylinder for operation of anchoring and or sealing devises, where the hydraulic cylinder comprising a cylinder chamber (6), a piston head (4) within said cylinder chamber (6) forming two sub chambers (7, 7′) of said cylinder chamber...

20060086087 - Force-based power steering system: A power steering system includes a power cylinder, an accumulator, a reservoir, a pair of valves, and a pair of pressure transducers. The system selectively fluidly couples the accumulator and/or reservoir to the double-acting power cylinder and thereby causes the power steering system to function in the manner of a...

20060086088 - Communication protocol for a distributed electrohydraulic system having multiple controllers: A distributed hydraulic system having a plurality of hydraulic functions each including a hydraulic actuator, a valve assembly that controls flow of fluid to the hydraulic actuator, and a function controller which operates the valve assembly. The function controllers exchange messages over a communication network which has a finite bandwidth....

20060086089 - Virtual compressor outlet temperature sensing for charge air cooler overheating protection: A system and method for controlling an internal combustion engine, having an exhaust recirculation (EGR) system and a charge air cooler, to prevent overheating the charge air cooler. The system calculates the output temperature of a turbocharger compressor as a function of ambient air temperature, air pressure, air mass flow...

20060086090 - Vibration limiter for coaxial shafts and compound turbocharger using same: A compound turbocharger is provided, including at least one housing. A first turbocharger having an outer shaft is disposed within the housing, and a second turbocharger is provided having an inner shaft co-axial with and extending within the outer shaft. At least one displacement limiter is disposed at a selected...

20060086091 - Rankine cycle apparatus: A Rankine cycle system is provided in which the amount of water supplied to an evaporator (12) and the rotational speed of an expander (13) are controlled so as to make the temperature of steam at the outlet of the evaporator (12) coincide with a target steam temperature. When the...

20060086092 - Air-cooled condensing system and method: An air-cooled condenser has a first stage comprising both a K and a D section with fin tubes fed with steam at both ends, and a second stage comprising a D section. Each core tube in the first stage has at least one extraction channel at the trailing edge of...

20060086093 - Variable-section turbomachine nozzle with a one-piece control lever support: A variable-section nozzle for a turbomachine, the nozzle comprising a plurality of moving flaps mounted on the downstream end of an annular casing of the turbomachine, a moving flap control system comprising control levers each associated with a respective moving flap and at least one actuator for actuating the control...

20060086094 - Methods and systems for operating gas turbine engines: A method of operating a gas turbine engine is provided. The method includes introducing a fuel into a combustor, detecting a failure of ignition of the fuel, and preventing ignition until the introduced fuel is substantially removed from the gas turbine engine....

20060086095 - Method fo regenerating a motor vehicle particle filter and system for controlling regeneration of such a filter: A method for regenerating a motor vehicle particle filter that uses a mechanism for regenerating the filter when a load value exceeds a predetermined threshold. Further, a parameter representing operating conditions of the regenerating mechanism is calculated, and the operating conditions of the regenerating mechanism are controlled on the basis...

20060080950 - Methods and apparatus for cooling gas turbine engines: A method for assembling a gas turbine engine assembly that includes mounting a gas turbine engine including an inlet and an exhaust within a module that includes an inlet area, an exhaust area, and an engine area extending therebetween, such that the gas turbine engine is housed within the module,...

20060080951 - Method for controlling the temperature of a catalyst and multicylinder engine comprising a lambda splitting exhaust gas cleaning system: The invention is directed to a method for controlling the temperature of at least one catalyst arranged in an exhaust gas cleaning system (12) of a lean-runnable multi-cylinder engine (10), wherein energy is introduced into the exhaust gas cleaning system (12) by a lambda split, and to a corresponding multicylinder...

20060080952 - Method for operating an internal combustion engine and a device for carrying out the method: A method for operating an internal combustion engine; in the exhaust area of this engine there is at least one catalytic converter and downstream from the catalytic converter there is an NOx sensor. A device for carrying out this method is also provided. The NOx sensor has a cross-sensitivity to...

20060080953 - Method for regenerating a particle trap and exhaust system: An exhaust system purifies a gas flow of harmful substances. The exhaust system contains at least device for supplying a reducing agent, a first catalytic converter, and a particle trap, in the direction of flow of the gas flow through the exhaust system. At least one other exhaust purification component...

20060080954 - Methods for regeneration and performance of a particulate filter of an internal combustion engine: Methods for regenerating or improving the regeneration of a particulate filter and for improving the performance of a particulate filter during the operation of an internal combustion engine comprise lubricating the engine with a lubricant composition comprising additives that when combusted can form an ash deposit in the filter. The...

20060080955 - Hydraulic circuit device of hydraulic working machine: To permit smooth performance of both of an operation requiring a high pressure and an operation desired to produce a pressure at a suppressed level, a shuttle block 50 positioned between pilot operating units 35-37 and flow control valves 5-15 and pump regulators 28a,28b is arranged in association with shuttle...

20060080956 - Axle driving system: An axle driving system which houses in a housing thereof a hydrostatic transmission, axles, and a driving gear train for connecting output means of the hydraulic transmission and axles, so as to transmit power from a driving source to the hydrostatic transmission and to change the speed, thereby driving the...

20060080957 - System for multiple harnessing and complemented conversion of energy from sea waves: System for multiple harnessing and complemented conversion of energy from sea waves, characterized in that it includes a structure of vertical guides along which said central floating body moves, a submerged captive-air tank, held up by said floating body, with the body and the tank so arranged that the movement...

20060080958 - Fuel saving combustion engine insulation method and system: A method and apparatus for reducing fuel consumption in an internal combustion engine including gasoline, petrol and diesel engines used in trucks, cars and for pumps including the steps of providing a thermal insulation shield that includes reflective fabric over the exhaust manifold, around the intake plenum for intake air...

20060080959 - Engine turbine temperature control system: A turbine temperature control (TTC) system for regulating operation of an engine to control a temperature of a forced air induction device. The system includes a sensor that is responsive to an exhaust gas temperature and that generates a signal. A control module determines a temperature based on the temperature...

20060080960 - Method and system for thermochemical heat energy storage and recovery: Disclosed herein is a system for generating energy, comprising a first heat exchanger in communication with a first heat source; wherein the first heat exchanger contacts a transfer fluid that comprises a working fluid and an associating composition; and a first energy conversion device comprising a moving surface, wherein the...

20060080961 - Pressure-based fuel metering unit: A fuel delivery system for use, for example in a gas turbine engine system, includes a fuel metering unit including a main fuel inlet. The fuel metering unit includes fuel pressure and temperature sensors. A cavitating venturi is in fluid communication with the main fuel inlet and includes venturi characteristics...

20060080962 - Combustion device: A combustion device, such as an afterburner 4 for a gas turbine engine, comprises primary and secondary fuel delivery means 12, 20. Pressure fluctuations in the afterburner 4 are damped by reducing the supply of fuel through the primary fuel delivery means 12 during pressure peaks. This is achieved by...

20060080964 - Air cooler for power plants and use of such an air cooler: An air cooler for power plants comprising a pressure vessel, in which is accommodated a coaxial arrangement containing a cylindrical central tube, a helical tube bundle surrounding the central tube and a cylindrical casing surrounding the tube bundle. The central tube extends, at one end of the coaxial arrangement, into...

20060080963 - Power generating system and method: A power generating system having a liquid natural gas (LNG) vaporization circuit and an energy generating circuit. The LNG vaporization circuit includes a heat exchange assembly and a heating tower connected to the heat exchange assembly. The LNG vaporization circuit also includes a LNG vessel connected to the heat exchange...

20060080965 - Method and system for incorporating an emission sensor into a gas tubine controller: A method for determining an estimated operating parameter for a gas turbine including the steps of: determining an estimated operating parameter using an algorithm have an input from a sensor, wherein the algorithm includes a trim factor; determining a first trim factor based on a comparison of the first estimated...

20060080966 - Low-cost dual-fuel combustor and related method: A combustor for a gas turbine includes a combustion chamber and a plurality of radially outer nozzles surrounding a single, center nozzle, the radially outer nozzles configured to supply only gas fuel to the combustion chamber and the center nozzle configured to supply both gas and liquid fuel to the...

20060080968 - Method and apparatus for the combustion of a fuel-oxidator mixture: The present invention relates to a method and an apparatus (6) for carrying out the method, the method being used for combustion of a fuel-oxidator mixture in a combustion chamber (7) of a turbogroup, in particular of a power plant. A total oxidator flow (12) is divided into a main...

20060080967 - Method and system for rich-lean catalytic combustion: A gas turbine engine using a rich-lean catalytic combustion system includes a rich catalytic burner and a lean catalytic burner. The rich catalytic burner includes a rich catalytic reactor and a heat exchanger. The rich catalytic reactor catalytically burns a fuel rich mixture to provide a heated fuel. The heat...

20060080969 - Helicopter turbine engine protection system: A helicopter having a helicopter turbine engine disposed therein includes an over-stress protection system. The over-stress protection system includes a computer for storing data and an input such as a keyboard for inputting a safe temperature profile for starting the turbine engine. A temperature sensor is provided for measuring the...

20060080970 - Fluid heating and gas turbine integration method: A method of heating a fluid in a fluid heater integrated with a gas turbine. Fuel is burned in a radiant section of the fluid heater to heat the fluid and to produce combustion gases for the heating a downstream convective section. The combustion is supported by a combined oxidant...

20060080971 - Power trailer structural elements for air flow, sound attenuation and fire suppression: An enclosure comprising elements for air management, sound attenuation and fire suppression in a trailer-mounted mobile electrical power generation system. Air management is provided by ducts, fans, seals and a barrier wall. In addition, by establishing airflow away from spark-producing equipment, any fuel that might leak will not accumulate near...

20060075739 - Ion engine grid arcing protection circuit: An arcing protection circuit for the screen and accelerator grids of an ion thruster engine includes an impedance, which in one embodiment, is fixed, and in another, is variable, coupled in series between the accelerator grid of the engine and a current return path of the grid in such a...

20060075741 - Exhaust emission control apparatus and method for internal combustion engine: An exhaust emission control apparatus for an internal combustion engine includes a fuel injection valve placed substantially at a midpoint above a combustion chamber of the engine; a piston having an outer cavity formed substantially in a midsection of an upper surface of the piston and an inner cavity formed...

20060075740 - Spark ignition engine including three-way catalyst with nox storage component: A spark ignition engine with an exhaust system having a catalyst, which includes a three-way catalyst (TWC) and a NOx storage component, and an engine control unit is provided. The engine control unit is programmed to control the air-to-fuel ratio of the engine to run at the stoichiometric air-to-fuel ratio...

20060075743 - Exhaust treatment systems and methods for using the same: In one embodiment, an exhaust treatment system comprises a selective catalytic reduction device, an off-line reformer disposed in selective fluid communication with and upstream of the selective catalytic reduction device, and a plasma reactor disposed downstream of and in fluid communication with the off-line reformer, and disposed upstream of and...

20060075742 - Reducing nox emissions with a staged catalyst: The conversion of NOx to nitrogen in the exhaust of a lean burn engine using a hydrocarbon assisted-selective catalytic reduction system is benefited by a two-stage oxidation catalyst-reduction catalyst SCR reactor. The character and quantity of the oxidation catalyst is managed to just activate the hydrocarbon reductant at low temperatures...

20060075744 - Apparatus and method for regenerating a particulate filter of an exhaust system of an internal combustion engine: A power system has a fuel reformer, an emission abatement device, and a fuel cell. The fuel reformer reforms hydrocarbon fuels so as to produce a reformate gas which is supplied to both the emission abatement device and the fuel cell. A method of operating a fuel reformer so as...

20060075745 - Gas flow enhancer for combustion engines: A gas flow enhancer for a combustion engine includes a housing, configured to receive an inlet flow of gas at an inlet pressure, and enclosing an expansion chamber. Disposed within the expansion chamber are a set of inner vanes and outer vanes, and a flow separator. The outer vanes are...

20060075746 - Cooling structure for engine exhaust system: An exhaust system of an engine, wherein the intake system faces the cooling fan placed at the front of the vehicle while the exhaust system faces the dash panel placed at the rear of the vehicle, is provided with air from the cooling fan and air from the outside due...

20060075747 - Hydraulic power steering apparatus: In a hydraulic power steering apparatus, when the relative rotation between input and output shafts which are connected by a torsion bar is converted into the relative rotation between an outer valve element and an inner valve element, the ratio of the relative rotation angle of the latter to the...

20060075748 - Method for capturing energy from mechanical actions associated with recovery of underground fluids: A method for capturing energy from mechanical actions associated with recovery of underground fluids, and for improving the economic feasibility of low producing, but viable, oil wells. The present method captures energy associated with an oil well pump device and waste water as each fall under the influence of gravity....

20060075749 - Hydraulic energy intensifier: Hydraulic circuits used to manipulate tools in, for example construction equipment, uses less power for a retraction of a hydraulic cylinder than for an extension of that cylinder. Provided is a hydraulic circuit that uses the stored energy from the low energy phase to lower the energy load on the...

20060075750 - Ride control circuit for a work machine: A hydraulic circuit for raising and lowering a load arm on a work machine is adapted to provide a ride control function which will cushion shocks through the load arm as the machine traverses rough terrain. The circuit includes a hydraulic ram that moves the load arm and a first...

20060075751 - Hydraulic system for providing an auxiliary force for a motor vehicle device: A hydraulic system for providing an auxiliary force for a motor vehicle device has a fluid circulation system. The fluid circulation system includes a pump (14), an electromotor (16) and a reservoir (12). The pump (14) delivers fluid from the reservoir (12). The electromotor (16) drives the pump (14). The...

20060075752 - Method and system for electrical and mechanical power generation using stirling engine principles: A heat engine enclosed in a housing has two chambers maintained at different temperatures. The first chamber (“hot chamber”) receives heat energy from an external power source. The second chamber (“cold chamber”) is connected to the hot chamber by two conduits, such that a fluid (e.g., air, water, or any...

20060075753 - Method and system for generation of power using stirling engine principles: A heat engine enclosing a chamber in housing has two zones maintained at different temperatures. The first zone receives heat energy from an external power source. The second zone is connected to the hot zone by two conduits, such that a fluid (e.g., air, water, or any other gas or...

20060075754 - Aeroengine oil tank fire protection system: A gas turbine engine comprising an oil system and a gearbox, the gearbox is driven by at least one engine shaft, the oil system comprises a pump drivingly connected to the gearbox, an oil tank connected to the pump via a supply pipe and a delivery pipe connecting the pump...

20060075755 - Method for operating a gas turbine installation, and gas turbine installation: A method for operating a gas turbine installation (1) includes sucking in a gaseous medium (2) by the compressor (3) and compressed in the compressor space, a liquid medium (10) being injected into the gaseous medium (2), so that a two-phase flow comprising a gaseous phase and a liquid phase...

20060070371 - Electric dipole moment propulsion system: A spacecraft propulsion system utilizing a rotating octagon of trapezoidal electrically charged flat panels to create an electric dipole moment that generates lift on the hull....

20060070372 - Exhaust gas reactor: An exhaust gas reactor is disclosed which utilizes microwave energy to create a plasma whereby chemical reactions are promoted. Such reactions serve to reduce pollutant emission. The processor has a microwave-resonant cavity (6) formed either in an exhaust passage of a combustion chamber or in the combustion chamber itself, the...

20060070373 - Method for the simultaneous desulfation of a lean nox trap and regeneration of a diesel particulate filter: High exhaust gas temperatures whereby sulfur is removed from a lean NOx traps simultaneously with regeneration of a Diesel particulate filter is provided by alternating engine operation in respectively defined lean and rich combustion modes. The duration and frequency of the respective lean and rich operating modes, as well as...

20060070374 - Exhaust system for an internal combustion engine: The present invention relates to an exhaust system for an internal combustion engine, having an exhaust line for removing exhaust gas from the internal combustion engine and having a secondary fuel supply for introducing secondary fuel into the exhaust gas of the internal combustion engine. To improve the introduction of...

20060070375 - Exhaust flow distribution device: The disclosure is directed to a flow distributor for use to maximize the efficiency and working life of a catalytic converter. The flow distributor is configured such that it directs the gas flow in the center of the exhaust gas stream to the periphery of the gas stream thereby resulting...

20060070376 - Hydrostatic stepless transmission: A hydrostatic stepless transmission comprises a hydraulic pump and a hydraulic motor, at least one of the hydraulic pump and motor being variable in displacement; a closed circuit for fluidly connecting the hydraulic pump and motor to each other therethrough, the closed circuit including a pair of oil passages between...

20060070378 - Closed-system electrohydraulic actuator: An electrohydraulic actuator (10) includes a fluid-powered actuator (11) having a piston (15) in a cylinder (16). The piston divides the cylinder into two opposed chambers (18, 19). The actuator includes a fixed-displacement reversible motor-driven pump (13) having a first port communicating with one of the chambers and having a...

20060070377 - Dual, coupled check valve for direct drive, reversible power sources for hydraulic systems: An invented dual, coupled check valve mechanism is described for a direct drive, reversible hydraulic power source for hydraulic circuits that includes a manifold hydraulically coupled to the respective input/output ports and a reservoir of the hydraulic power source defining a translation passageway having mid-passage drain hydraulically coupled to the...

20060070379 - Microelectrical mechanical structure (mems) optical modulator and optical display system: A microelectrical mechanical out-of-plane thermal buckle-beam actuator is capable of providing transverse-plane movement of shutters. The actuator includes a pair of structural anchors secured to a substrate and one or more thermal buckle-beams secured at respective base ends to the anchors. Each buckle-beam extends substantially parallel to and spaced-apart from...

20060070380 - Engine with charge air-cooling system with water fumigation: An engine charge air-cooling system with water fumigation for an internal combustion engine includes a charge air cooler having a housing, a heat exchanger core, an air inlet and an air outlet. The charge air cooler inlet is connected to an outlet of a compressed air source, such as a...

20060070382 - Control of exhaust to a turbo of internal combustion engine: An internal combustion engine has a plurality of cylinders, and each cylinder has at least one first and one second exhaust port with associated respective first and second exhaust valves. At least one first and one second exhaust manifold are flow-connected to the respective first and second exhaust ports. A...

20060070381 - Multi-stage turbocharging system utilizing vtg turbine stage(s): Multi-stage turbocharging, and more particularly, an advanced multi-stage turbocharging system using the variable turbine power of one or more variable turbine geometry (VTG) turbochargers to adjust compressor boost and exhaust back pressure to engine operating demands. The invention further relates to a turbocharged internal combustion engine, in particular a turbocharged...

20060070383 - Gas turbine power augmentation method: A power augmentation method for a gas turbine in which water is injected into one or more stages of an auxiliary compressor to produce a vapor containing gas stream. The vapor containing gas stream is at least in part introduced into combustors of the gas turbine for power augmentation. Part...