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2876results about How to "Promote combustion" patented technology
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Pressure-balanced, catalyzed soot filter
ActiveUS20060057046A1Minimal overall platinum group metal component material costSpeed up the conversion processCombination devicesMolecular sieve catalystsParticulatesCatalytic function
The invention provides a catalyzed soot filter formed on a wall flow substrate having internal walls coated with catalyst compositions. The soot filter maintains a homogeneous flow of the exhaust gases through the internal walls of the substrate along the length of the filter due to the coating design. Both the efficiency and the durability of the catalytic function are increased over conventionally designed catalyzed soot filters. The catalyzed soot filter provides an integrated function for simultaneously treating the gaseous components of the exhaust (e.g., CO and HC) and the particulate matter deposited in the filter.
Owner:BASF CATALYSTS LLC
Method and apparatus to increase combustion efficiency and to reduce exhaust gas pollutants from combustion of a fuel
InactiveUS6851413B1Improve combustion efficiencyFacilitate fuel combustionBurnersLiquid fuel feeder/distributionCombustorExhaust fumes
A method and apparatus is disclosed for increasing combustion efficiency in internal combustion engines and external combustors resulting in increased fuel economy and reduced exhaust pollutants. The same principles and apparatus of the invention are used in the exhaust stream to further reduce pollutants.
Owner:RONNELL
Production of hydrogen and removal and sequestration of carbon dioxide from coal-fired furnaces and boilers
InactiveUS7282189B2Increase ratingsValue maximizationOrganic chemistryNitrogen compoundsHydrogenProcess engineering
Methods for reducing and eliminating carbon dioxide from the emissions of solid fuel fired power plants, particularly coal fired power plants, and to sequester the carbon dioxide, typically by using existing equipment. In some embodiments, the methods involve pyrolyzing the solid fuel to remove volatile matter and using the volatile matter to produce hydrogen. Additionally, the methods may involve burning the solid fuel or pyrolized solid fuel at very fuel rich stoichiometric conditions. Sequestration may include the production of a carbon dioxide-containing solution and the pumping of the solution into the ground, particularly in areas high in limestone.
Owner:ZAUDERER BERT
Method for operating an internal combustion engine
InactiveUS6892691B1Simple meansPromote combustionAnalogue computers for vehiclesElectrical controlExternal combustion engineInternal combustion engine
The operation of an internal combustion engine under unfavorable operating conditions can lead to the formation of deposits in the combustion chamber (4). A method and an arrangement for operating an internal combustion engine (1), especially of a motor vehicle, is suggested, wherein fuel is conducted into a combustion chamber (4) and is there combusted. When deposits are detected in the combustion chamber (4), measures are initiated in a targeted manner for cleansing the combustion chamber (4). A knocking combustion is especially introduced and / or a cleansing liquid is added to the inducted combustion air.
Owner:ROBERT BOSCH GMBH
Electric flame control using corona discharge enhancement
InactiveUS7243496B2Increased ionizationPromote combustionTurbine/propulsion fuel supply systemsTurbine/propulsion engine ignitionElectricityCombustor
A method of operating a combustor (10), to provide intimately mixed hot combusted gas (44) for a gas turbine (46), includes feeding gaseous oxidant (12) and gaseous fuel (16) into the combustor (10) near a combustion flame (28) which has a tip end (39) and a root end (29), where corona discharge occurs through adjustment of an electric field (34), and where the corona discharge causes ionized particles (36) to form and also causes intimate turbulent mixing of the gases.
Owner:SIEMENS ENERGY INC
Exhaust emission control device
InactiveUS6708487B2Improve conversion efficiencyShort timeElectrical controlInternal combustion piston enginesParticulatesCombustion
A control unit activates regeneration assist means, if a specific operating state involving incomplete combustion of particulates by NO2 continues for a predetermined period or more, as a first determination condition, and controls an exhaust gas temperature or a temperature of a catalyst to enhance the conversion efficiency of the catalyst into NO2, thereby continuously regenerating the particulates. The control unit activates forced regeneration means, if a deposited amount of particulates detected by deposited amount detecting means exceeds a predetermined value, as a second determination condition, and controls the exhaust gas temperature or a temperature of a filter to be higher than that of when the regeneration assist means is activated to forcibly regenerate the filter. The control unit activates either the forced regeneration means or the regeneration assist means in accordance with the temperature sensed by temperature sensing means, if the first and second determination conditions are simultaneously established.
Owner:MITSUBISHI MOTORS CORP
Multiple Combustion Mode Engine Using Direct Alcohol Injection
ActiveUS20080127933A1Improve operation and transient performanceDesign range be expandAnalogue computers for vehiclesElectrical controlAutomotive engineeringSpark-ignition engine
A method of operating an engine, comprising of performing homogeneous charge compression ignition combustion during a first operating condition, and performing spark ignition combustion during a second operating condition, where an amount of directly injected alcohol in at least one of said homogeneous charge compression ignition combustion and said spark ignition combustion is varied in response to at least an operating parameter.
Owner:FORD GLOBAL TECH LLC +1
Pressure-balanced, catalyzed soot filter
ActiveUS7722829B2High particulate matter reductionPromote combustionCombination devicesMolecular sieve catalystsParticulatesCatalytic function
The invention provides a catalyzed soot filter formed on a wall flow substrate having internal walls coated with catalyst compositions. The soot filter maintains a homogeneous flow of the exhaust gases through the internal walls of the substrate along the length of the filter due to the coating design. Both the efficiency and the durability of the catalytic function are increased over conventionally designed catalyzed soot filters. The catalyzed soot filter provides an integrated function for simultaneously treating the gaseous components of the exhaust (e.g., CO and HC) and the particulate matter deposited in the filter.
Owner:BASF CATALYSTS LLC
Hydrogen-oxygen/hydrocarbon fuel system for internal combustion engine
InactiveUS6311648B1Improve efficiencyLower Level RequirementsElectrolysis componentsNon-fuel substance addition to fuelHydrogenExternal combustion engine
A device for injection of molecular hydrogen and oxygen into the combustion chambers of a gasoline engine, along with the fuel-air mixture, to improve fuel efficiency and to reduce and in some cases eliminate engine emissions. The hydrogen-oxygen / hydrocarbon fuel system includes: a water source; an electrolytic chamber, an anode and a cathode mounted into the chamber in closely spaced fashion from one another; two fluid lines to fluidingly connect the water source and the fuel tank to the chamber; and an electrical power source, for electrically charging the anode and cathode.
Owner:LAROCQUE JEAN LOUIS
Controlled Spark Ignited Flame Kernel Flow in Fuel-Fed Prechambers
ActiveUS20120125287A1Improve flowHigh trafficSparking plugsInternal combustion piston enginesAlloyEngineering
A pre-chamber spark plug that includes a shell. Additionally, the pre-chamber spark plug includes an insulator disposed within the shell. In a particular embodiment, a center electrode has a first portion surrounded by the insulator, and a second portion that extends from the insulator into a pre-chamber. The pre-chamber defined by the shell. In a further embodiment, a ground electrode is attached to the insulator. In particular embodiments, the ground electrode is tubular in shape and includes an inner spark surface ring spaced in surrounding relation to the center electrode to create a spark gap, an outer ring attached to the shell, and a plurality of rounded spokes connecting the inner and outer rings. In a particular embodiment, the ground and center electrodes accommodate attachment of precious metal alloys to increase electrode surface life. In another embodiment the ground electrode and insulator is coaxial to the center electrode.
Owner:WOODWARD GOVERNOR CO
Candle having a planar wick and method of and equipment for making same
ActiveUS20050037308A1Improved capillary flowIncrease functional surface areaFuel lightersCapillary burnersEngineeringCandle wick
A candle having a body of a meltable fuel and a planar wick. When lit, the candle provides a unique flame formation, usable in a variety of decorative applications. The wick can be configured to evenly deplete the meltable fuel, while allowing for candles having relatively large and unique body configurations. The body of candle and / or the wick may include scented oil to promote the release of fragrance upon heating. The wick preferably is formed of wood, thereby providing an acoustic contribution to ambiance and improved combustion that generates less soot than conventional cotton wick candles.
Owner:LUMETIQUE
Multiple combustion mode engine using direct alcohol injection
ActiveUS7461628B2Improve efficiencyReduce the production of nitrogen oxidesAnalogue computers for vehiclesElectrical controlHomogeneous charge compression ignitionAlcohol
A method of operating an engine, comprising of performing homogeneous charge compression ignition combustion during a first operating condition, and performing spark ignition combustion during a second operating condition, where an amount of directly injected alcohol in at least one of said homogeneous charge compression ignition combustion and said spark ignition combustion is varied in response to at least an operating parameter.
Owner:FORD GLOBAL TECH LLC +1
Method and apparatus for controlling operation of dual mode hcci engines
InactiveUS20050183693A1Overcome deficienciesOvercomes drawbackValve arrangementsElectrical controlTemperature controlExhaust valve
An intake and exhaust system for a dual mode HCCI engine, which provides superior intake temperature control and homogeneity for engine operation in SI and HCCI modes, as well as during transition between SI and HCCI modes and vice-versa. The system includes adjusted intake cam movement event lengths for intake valve operation at specified modes of operation. The system further includes at least one cam profile switching device operatively connected to intake and exhaust valves in an engine for controlling event length, maximum lift, and valve opening / closing timings for the intake and exhaust valves. The system yet further includes a bifurcated intake system and camless valve actuators for controlling intake valves for facilitating operation in SI or HCCI modes, as well as transition between SI and HCCI modes and vice-versa.
Owner:FORD GLOBAL TECH LLC
Method for split ignition timing for idle speed control of an engine
InactiveUS20030221664A1High load conditionMore ignition timingAnalogue computers for vehiclesElectrical controlTemperature controlAdaptive learning
A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, such as after an engine cold start, the method operates an engine with a first group of cylinders having a first ignition timing, and a second group of cylinders having a second ignition timing more retarded than the first group. In addition, the engine control method also provides the following features in combination with the above-described split air / lean mode: idle speed control, sensor diagnostics, air / fuel ratio control, adaptive learning, fuel vapor purging, catalyst temperature estimation, default operation, and exhaust gas and emission control device temperature control. In addition, the engine control method also can change to combusting all cylinders at substantially the same ignition timing under preselected operating conditions such as fuel vapor purging, manifold vacuum control, and purging of stored oxidants in an emission control device.
Owner:FORD GLOBAL TECH LLC
Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics
InactiveUS6758185B2Easy to operateOverall engine torque fallsElectrical controlNon-fuel substance addition to fuelTemperature controlAdaptive learning
Owner:FORD GLOBAL TECH LLC
Exhaust gas purification device
InactiveUS7104051B2Emission is deterioratedInhibit deteriorationElectrical controlInternal combustion piston enginesParticulatesCombustion
The invention provides an exhaust gas purification device that can prevent deterioration of the emission during a regeneration process for a particular filter for trapping particulates contained in the exhaust gas.Particulate filter regeneration timing determining unit estimates the amount of particulates trapped by the particulate filter to determine the filter regeneration timing based on the estimated particular amount. In response to the regeneration timing determination, heating unit heats the particulate filter to raise an exhaust gas temperature, so that a particulate filter regeneration process starts. At this time, intake air amount reducing unit reduces the intake air amount to raise the exhaust gas temperature while combustion maintaining unit controls the combustion in the internal-combustion engine so as to be maintained in a desired condition.
Owner:HONDA MOTOR CO LTD
Combustion controller for compression-ignition direct-injection engine and engine control system for the same
ActiveUS20080243358A1Improve combustion characteristicImprove featuresAnalogue computers for vehiclesElectrical controlEngineeringIgnition timing
As a compression-ignition direct-injection engine combustion controller, a program for detecting ignition timing of a main injection Mn (main ignition timing), a program for correcting a command value of main injection execution timing in a direction to the side where a detection value is converged within a predetermined range, a program for determining whether or not the corrected command value is within a predetermined range, and a program for, when it is determined that the command value is not within the range, correcting a command value related to an injection amount of a pilot injection Pt based on whether or not the command value is on a delay side or an advance side of the range.
Owner:DENSO CORP
Fat reducer by applying cold and hot stimulation to skin alternatively
InactiveCN1511503ASimple structureCompact structureTherapeutic coolingTherapeutic heatingWhole bodyHeat resistance
The weight reducer includes one section of elastic braid or elastic fabric, water bag and controller on the elastic braid or elastic fabric, semiconductor refrigerator fins arranged on the surface of the water bag, sponge filled in the intervals, one other section of elastic braid or elastic fabric to cover the sponge with hollow parts to expose the upper surface of the semiconductor refrigerator fins, and high strength and low heat resistance paint on the upper surface of the semiconductor refrigerator fins. The semiconductor refrigerator fins are connected parallelly and have their hot ends and cold ends connected to the controller and power supply. The present invention is used to stimulate body with alternate heat and cold to reduce weight via physiotherapy.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Radially staged RQL combustor with tangential fuel premixers
ActiveUS20080041059A1Emission reductionLow costContinuous combustion chamberGas turbine plantsCombustorVaporization
A double annular radially staged combustor having an axially reduced common internal flow transitioning area between outboard primary combustion zone and inboard secondary combustion zone. The primary zone geometry is generally a toroidal shell form with a radially inboard wall annular exiting thru flow area into the secondary fuel air premixing section. Fuel and Air premixing chambers are incorporated into the primary combustion zone with vaporization capability for liquid fuels. The secondary zone is of an annular shell form, generally inboard and adjacent to the primary zone, accepts the primary combustion gases and mixes with additional supplied air in a reduced annular flow area and then combusted in the secondary combustion zone. The secondary combustion zone exiting gas, flows into a dilution zone where further air is mixed and with continued flow downstream this heat energy is delivered to the turbine stage of a gas turbine engine.
Owner:TEETS JOSEPH MICHAEL MR
Gas turbine control apparatus and gas turbine system using the same
InactiveUS6955039B2Promote combustionOscillation suppressionContinuous combustion chamberEngine fuctionsCombustorGas turbines
In a gas turbine control apparatus, a frequency analyzing section frequency-analyzes at least one of pressure oscillation in combustors of a gas turbine and acceleration oscillation of each of the combustors and outputs a first frequency analysis result as the result of frequency analysis for a plurality of predetermined frequency bands. A control unit controls at least one of a first fuel flow rate of fuel and a first air flow rate of air based on the first frequency analysis result for the plurality of frequency bands. The fuel and the air are supplied to the gas turbine.
Owner:MITSUBISHI HITACHIPOWER SYST LTD
Air charging system for an opposed piston opposed cylinder free piston engine
InactiveUS6957632B1Avoid less frictionEfficient chargingElectrical controlInternal combustion piston enginesFree-piston enginePump chamber
A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each operatively located in a respective one of the engine cylinders, with a push rod connected between the inner pistons. The push rod extends through an inner pumping chamber in the fluid pumping assembly and forms a fluid plunger within this chamber. An outer piston assembly includes a pair of pistons, one each operatively located in a respective one of the engine cylinders, with at least one pull rod connected between the outer pistons. The pull rod extends through an outer pumping chamber in the fluid pumping assembly and forms a fluid plunger within this chamber. Each outer piston cooperates with an integrated scavenge pump in order to compress the charge air, thus significantly increasing the air charge density into the engine cylinders for each stroke of the engine.
Owner:FORD GLOBAL TECH LLC
Methods of conducting simultaneous endothermic and exothermic reactions
InactiveUS7250151B2Reduce the formation of nitrogen oxidesHigh thermal cycling durabilityFurnace componentsChemical/physical/physico-chemical microreactorsCombustion chamberProcess engineering
Integrated Combustion Reactors (ICRS) and methods of making ICRs are described in which combustion chambers (or channels) are in direct thermal contact to reaction chambers for an endothermic reaction. Particular reactor designs are also described. Processes of conducting reactions in integrated combustion reactors are described and results presented. Some of these processes are characterized by unexpected and superior results, and / or results that can not be achieved with any prior art devices.
Owner:VELOCYS CORPORATION
Honeycomb filter
ActiveUS20040258582A1Promote combustionFiltering function can be deterioratedCombination devicesInternal combustion piston enginesHoneycombEngineering
A honeycomb filter of the present invention is a honeycomb filter 10 including a number of through-holes 12 surrounded by partition walls and extending through an axial direction, in which the partition walls have filterability, predetermined through-holes 12 are plugged at one end portion, and the remaining through-holes 12 are plugged at the other end portion to trap particulate matter contained in a dust-containing fluid. The honeycomb filter is characterized in that a heat capacity of a central part 11 is set to be larger than that of a peripheral part 13 in a section of the honeycomb filter 10 perpendicular to the axial direction. There is provided a honeycomb filter in which a crack is not generated by thermal stress during use, especially at a regeneration time and which is superior in durability.
Owner:NGK INSULATORS LTD
Engine cooling system and cooling method
InactiveCN101655027AReduce the temperatureReduce formationLiquid coolingCoolant flow controlFuel efficiencyEngineering
The invention discloses an engine cooling system and a cooling method. The cooling system comprises a water pump, a double-valve temperature regulator, a machine oil cooler, a water jacket of a cylinder body, a water jacket of a cylinder cover, a water tank radiator and an EGR cooler. The cooling system adopts a water passage circulation as follows: when the engine is started, the water pump begins to work; cooling liquid firstly flows into the machine oil cooler and enters in the water jacket of the cylinder cover to cool the key area of the cylinder cover, and then enters in the water jacket of the cylinder body from a gasket circulating hole of the cylinder cover to cool the cylinder body and the EGR cooler. The cooling liquid in the cooling system firstly cools the cylinder cover to reduce the temperature of the cylinder cover by 10 DEG C to 15 DEG C, enhance aeration efficiency, enlarge air inlet quantity, promote complete combustion, reduce the formation of discharge objects andenhance output efficiency; After cooling the cylinder cover, the cooling liquid enters in the cylinder body for cooling the cylinder body; the higher temperature of the cylinder body can reduce friction, improve fuel efficiency, enhance the output efficiency and reduce peak value pressure and temperature in the cylinder.
Owner:CHERY AUTOMOBILE CO LTD
Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics
InactiveUS20030221655A1Accurate air-fuel ratioIncrease in temperature of catalystElectrical controlNon-fuel substance addition to fuelTemperature controlAdaptive learning
A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air / fuel mixture and a second group of cylinders pumping air only (i.e., without fuel injection). In addition, the engine control method also provides the following features in combination with the above-described split air / lean mode: idle speed control, sensor diagnostics, air / fuel ratio control, adaptive learning, fuel vapor purging, catalyst temperature estimation, default operation, and exhaust gas and emission control device temperature control. In addition, the engine control method also changes to combusting in all cylinders under preselected operating conditions such as fuel vapor purging, manifold vacuum control, and purging of stored oxidants in an emission control device.
Owner:FORD GLOBAL TECH LLC
Pre-chamber spark plug with tubular electrode and method of manufacturing same
ActiveUS20120125279A1Improve flowHigh trafficSpark gapsInternal combustion piston enginesEngineeringAlloy
A pre-chamber spark plug that includes a shell, and an end cap attached to the shell. Additionally, the pre-chamber spark plug includes an insulator disposed within the shell. In a particular embodiment, a center electrode has a first portion surrounded by the insulator, and a second portion that extends from the insulator into a pre-chamber. The pre-chamber defined by the shell and end cap. In a further embodiment, a ground electrode is attached to the shell. In particular embodiments, the ground electrode is tubular in shape and includes an inner spark surface ring spaced in surrounding relation to the center electrode to create a spark gap, an outer ring attached to the shell, and a plurality of rounded spokes connecting the inner and outer rings. In a particular embodiment, the ground and center electrodes accommodate attachment of precious metal alloys to increase electrode surface life.
Owner:WOODWARD GOVERNOR CO
Fuel injection method for dual-fuel engine
InactiveCN106870186ANot easy to knockIncrease concentrationElectrical controlMachines/enginesExhaust valveCombustion
Owner:DALIAN UNIV OF TECH
Tangential standing vortex burning chamber
InactiveCN1858498AReduce aerodynamic lossesReduce complexityContinuous combustion chamberCombustion chamberCombustor
The tangential standing vortex burning chamber in annular flame tube structure consists of inner and outer boxes and inner and outer flame tubes separately inside the inner and the outer boxes. The outer flame tube has one circumferential head including oil nozzle and flame stabilizing tube, and one main burning hole in the downstream of the head, and the central line of the head and the main burning hole is in some angle to the circumference tangent. The inner and outer flame tubes have inner and outer mixing holes separately in front of their combustors to ensure the excellent outlet temperature distribution, and inclined cooling holes in the walls and inclined to the main burning holes. The present invention has raised liquid atomizing combustion efficiency, reduced combustor outlet temperature distribution coefficient and expanded stable operation range of combustor.
Owner:BEIHANG UNIV
Radiator element
InactiveUS6896512B2Promotes efficient combustionEffective radiationDomestic stoves or rangesAir heatersCombustionMetal alloy
The present invention is a radiator element composed of a metal foam for use within a radiant burner. The radiator element is comprised of a homogenous network about a plurality of inter-connected cells thereby forming a gas-permeable metal foam. The homogeneous network may be composed of a metal or metal alloy capable of withstanding combustion temperatures typical of fuel-air reactions and resisting damage produced by flashback. Inter-connected cells include irregular-shaped voids, circular-shaped voids, and combinations thereof.
Owner:SOLEBURY TECHN
Large-bore, medium-speed diesel engine having piston crown bowl with acute re-entrant angle
ActiveUS7438039B2Excellent characteristicsImprove performanceInternal combustion piston enginesPistonsInternal combustion engineDiesel engine
A large-bore (at least 180 mm diameter) diesel engine cylinder configuration featuring a piston crown bowl having an acute re-entrant angle and, optionally, an anti-polish ring. The acute re-entrant angle crown bowl involves a maximum radius of the crown bowl exceeding a minimum crown bowl radius, wherein the maximum crown bowl radius is located farther from the squish face than is the minimum crown bowl radius. The acute re-entrant angle crown bowl applied to large-bore, medium-speed diesel engines yields an improvement in performance and emissions characteristics. The anti-polish ring may be integrally formed with the cylinder liner and used in any internal combustion engine.
Owner:ELECTRO-MOTIVE DIESEL
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