СПОСОБ ОПРЕДЕЛЕНИЯ ИСПАРЯЕМОСТИ ТОПЛИВА И ПОСЛЕДУЮЩЕГО ВЫПОЛНЕНИЯ ХОЛОДНОГО ЗАПУСКА ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к двигателестроению, в частности к способам регулирования систем двигателей внутреннего сгорания. Изобретение позволяет создать способ определения испаряемости топлива и последующего выполнения холодного запуска двигателя внутреннего сгорания, который является простым, экономичным для осуществления. Способ определения испаряемости топлива и последующего выполнения холодного запуска двигателя внутреннего сгорания заключается в том, что при холодном запуске определяют процентное содержание обогащения впрыска (% Enrich) как функцию хранимого значения (Vmem) для испаряемости топлива; и запускают двигатель с использованием предварительно определенного процентного содержания обогащения впрыска (% Enrich). Дополнительно определяют прогнозируемое значение (MarkPred) для качества запуска перед выполнением запуска. Определяют измеренное значение (MarkMeas) для качества запуска при первоначальном увеличении частоты вращения (оборотов в минуту) двигателя. Определяют величину коррекции ...

Система питания двигателя внутреннего сгорания жидким и газообразным топливом

Изобретение относится к области дви- гателестроения и позволяет повысить надежность работы системы питания. Система содержит впускной трубопровод 1, карбюратор 2 с поплавковой камерой 3, датчик 4 минимального уровня топлива, дроссельную гэ заслонку 5, систему 7 х.х., топливопровод 9 подачи жидкого топлива, золотник 10, обратный трубопровод 12, трубопровод 13 газообразного топлива с системой регулирования подачи газа, газовый редуктор 16, реле 17 давления, пневмореле 18 управления запорным клапаном 8, реле 23 узла управления подачей газообразного топлива. Последнее подключено к реле 27 и сообщено при помощи канала с задроссельным пространством . Такая система позволяет на малых оборотах х.х. по трубопроводу 12 сбрасывать топливо в бензобак, исключая перелив топлива через главную дозирующую систему. На переходном режиме в двигатель одновременно поступают газ и топлива, обеспечивая переход на нагрузочный режим без провала мощности. 1 ил. (С (Л со to о 42аь 00 to ...

Способ работы многотопливного дизеля

Система впрыска жидкостей в дизель

Bi-fuel engine with variable air fuel ratio

METHODS FOR THE PREPARATION AND DELIVERY OF FUEL COMPOSITIONS

Combustion method and apparatus.

Bi-fuel engine with variable air fuel ratio

Hybrid fuel and method of making the same

Methods for the preparation and delivery of fuel compositions

Governor automatically-controlled between two fluids and application to the feeding system of an internal combustion engine

Hybrid fuel and method of making the same

Methods for the preparation and delivery of fuel compositions

Bi-fuel engine with variable air fuel ratio

Methods for the preparation and delivery of fuel compositions

Hybrid fuel and method of making the same

Combustion method and apparatus.

FUEL SUPPLY SYSTEM

DEVICE FOR THE SUPPLY DIESELS OF AN INTERNAL-COMBUSTION ENGINE

PROCEDURE AND MECHANISM FOR ADJUSTMENT AN INTERNAL-COMBUSTION ENGINE OF MEANS OF YOUR ACHIEVEMENT AND/OR YOUR FUEL CONSUMPTION

RULE PROCEDURE FOR GAS AND LIQUID COMBUSTION ENGINE

Mechanism for the optional enterprise of a gas engine with different gases of different heat value

FUEL SYSTEM PLANT IN FORM OF A COMM ON OF RAIL SYSTEM OF AN INTERNAL-COMBUSTION ENGINE WITH SEVERAL CYLINDERS

PASSIVELY CONTROL HEATING DERIVATIVE ELEMENT

MOTORCYCLE

PROCEDURE AND DEVICE FOR REGULATING A FUEL INJECTION SYSTEM

PROCEDURE FOR THE COLD WEATHER STARTING OF A COMBUSTION ENGINE

PROCEDURE FOR THE COLD WEATHER STARTING OF A COMBUSTION ENGINE

GAS SUPPLY SYSTEMS FOR GAS ENGINES

CONTROLLING OF AN FOREIGNIGNITED INTERNAL-COMBUSTION ENGINE

SYSTEM TO THE SUPPLY OF AUTOCGAS/CAMMONIA FOR GASOLINE OR DIESEL ENGINES WITH DIREKTEINSPRITZUNG

DIESEL-MOTOR CLAIMANT INTERNAL-COMBUSTION ENGINE

OPTIMIZED BURN REGULATION AN INTERNAL-COMBUSTION ENGINE WITH EGR

PROCEDURES FOR THE DETERMINATION OF THE FUEL EVAPORABILITY AND THEREFORE WOULD DRIVE THROUGH A COLD WEATHER STARTING OF A COMBUSTION ENGINE

PROCEDURE FOR THE OPERATION OF AN INTERNAL-COMBUSTION ENGINE

PROCEDURE FOR THE KNOCKING RECOGNITION OF AN FOREIGNIGNITED INTERNAL-COMBUSTION ENGINE

Method and control device for determining a gas consumption a gas fired engine

Verfahren zur Bestimmung eines Gasverbrauchs eines mit Gas betriebenen Motors (10), nämlich eines mit Gas betriebenen Gasmotors oder eines mit Gas betriebenen Dual-Fuel-Motors, wobei der Motor (10) unter Ist-Betriebsbedingungen betrieben wird und unter den Ist-Betriebsbedingungen der Ist-Gasverbrauch des Motors (10) erfasst wird, und wobei ein unter Ziel-Betriebsbedingungen zur erwartender Ziel-Gasverbrauch des Motors (10) abhängig von dem Ist-Gasverbrauch und abgängig von Abweichungen zwischen den Ist-Betriebsbedingungen und den Ziel-Betriebsbedingungen berechnet wird.

Dual Repopulating Engine

Dual-Fuel-Brennkraftmaschine mit zumindest einem Brennraum, wobei dem zumindest einen Brennraum ein Einlassventil für ein Gas-Luft-Gemisch und ein Injektor für flüssigen Kraftstoff zugeordnet ist, und einer Regeleinrichtung, welche in einem Umschaltmodus dazu ausgebildet ist, eine Umschaltung dadurch vorzunehmen, dass eine dem zumindest einen Brennraum durch eine Gas-Luft- Gemisch zugeführte Energiemenge geändert wird und eine dem zumindest einen Brennraum durch den flüssigem Kraftstoff zugeführte Energiemenge und/oder einen Zeitpunkt der Einspritzung des flüssigen Kraftstoffs geändert wird, wobei die Regeleinrichtung dazu ausgebildet ist, die Umschaltung in Abhängigkeit einer momentanen Last der Dual-Fuel-Brennkraftmaschine vorzunehmen.

Exhaust treatment system for a dual repopulating engine

Abgasnachbehandlungssystem (1) für eine Dual-Fuel-Brennkraftmaschine (2) mit wenigstens einer Abgasnachbehandlungsvorrichtung (3) zur Nachbehandlung eines von der Brennkraftmaschine (2) emittierten Abgases wobei die Brennkraftmaschine (2) mit wenigstens zwei unterschiedlichen Kraftstoffen (D, G) betreibbar ist, einer Recheneinheit (4) zur Berechnung der Mengen und Kosten eines von der Brennkraftmaschine (2) verbrauchten Kraftstoffes (D, G) und eines von der Abgasnachbehandlungsvorrichtung (3) verbrauchten Reduktionsmittels (U), wobei die Recheneinheit (4) dazu konfiguriert ist, einen Betriebspunkt der Brennkraftmaschine (2) hinsichtlich der Kosten von Kraftstoff (D, G) und Reduktionsmittel (U) anzupassen, wobei die Recheneinheit (4) dazu ausgebildet ist, eine Substitutionsrate bei der Anpassung eines Betriebspunktes der Brennkraftmaschine (2) zu berücksichtigen.

Dual Repopulating Engine

Dual-Fuel-Brennkraftmaschine mit zumindest einem Brennraum (B), wobei dem zumindest einen Brennraum (B) ein Einlassventil für ein Gas-Luft-Gemisch (R) und ein Injektor (I1 bis I4) für flüssigen Kraftstoff zugeordnet ist und einer Regeleinrichtung, welche in einem Umschaltmodus dazu ausgebildet ist, eine Umschaltung dadurch vorzunehmen, dass eine dem zumindest einen Brennraum (B) durch das Gas-Luft-Gemisch (R) zugeführte Energiemenge geändert wird und eine eingespritzte Menge an flüssigem Kraftstoff und/oder ein Zeitpunkt der Einspritzung des flüssigen Kraftstoffs geändert wird, und einem Sensor (13), dessen Signale charakteristisch sind für ein im zumindest einen Brennraum auftretendes Klopfen, wobei die Regeleinrichtung dazu ausgebildet ist, die Umschaltung unter Auswertung der Signale des Sensors (13) vorzunehmen, wobei die Regeleinrichtung dazu ausgebildet ist, die Auswertung der Signale des Sensors (13) unter Berücksichtigung der in den zumindest einen Brennraum eingespritzten Menge ...

Dual Repopulating Engine

Dual-Fuel-Brennkraftmaschine mit zumindest einem Brennraum, wobei dem zumindest einen Brennraum ein Einlassventil für ein Gas-Luft-Gemisch und ein Injektor (I1 bis I4) für flüssigen Kraftstoff zugeordnet ist und einer Regeleinrichtung, welche in einem Umschaltmodus dazu ausgebildet ist, eine Umschaltung dadurch vorzunehmen, dass eine dem zumindest einen Brennraum durch das Gas-Luft- Gemisch zugeführte Energiemenge geändert wird und eine eingespritzte Menge an flüssigem Kraftstoff und/oder ein Zeitpunkt der Einspritzung des flüssigen Kraftstoffs geändert wird, und einem Sensor, dessen Signale charakteristisch sind für ein im zumindest einen Brennraum auftretendes Klopfen, wobei die Regeleinrichtung dazu ausgebildet ist, die Umschaltung unter Auswertung der Signale des Sensors vorzunehmen, wobei die Regeleinrichtung dazu ausgebildet ist, die Auswertung der Signale des Sensors unter Berücksichtigung der in den zumindest einen Brennraum eingespritzten Menge an flüssigem Kraftstoff vorzunehmen ...

PROCEDURE AND DEVICE FOR AUTOMATIC ADJUSTING OF THE OPERATING PARAMETERS OF A WITH AN ALCOHOL GASOLINE MIXTURE OF FED COMBUSTION ENGINE

COMBINED DIESEL AND NATURAL GAS FUEL CONTROL SYSTEM AND OPERATING TECHNIQUE

PROCEDURE FOR REGULATING AN INTERNAL-COMBUSTION ENGINE

LOW-PERFORMANCE ENGINE

PROCEDURE AND INTERNAL-COMBUSTION ENGINE WITH A DEVICE FOR BRINGING FUEL INTO A TWO-FUEL ARRANGEMENT WITH A HYBRID BURN OF DIFFUSION AND VORGEMISCH

FUEL INJECTION VALVE FOR GASEOUS AND LIQUID FUELS WITH HYDRAULIC TWO-WAY FLUID EXPENSIVE VALVE

PROCEDURE FOR MAKING POSSIBLE ESSENTIALLY CONSTANT TOTAL FUEL ENERGY QUANTITY FOR A TWO-FUEL ENGINE

PROCEDURE FOR THE ENTERPRISE OF A BURN DEVICE

INTERNAL-COMBUSTION ENGINE CONSISTING FOR TWO FUELS WITH IGNITION OF A HOMOGENEOUS MIXTURE OF GAS, AIR AND PILOT FUEL

PROCEDURE FOR ADJUSTING THE AIR OF FUEL RELATIONSHIP FOR EACH CYLINDER OF AN INTERNAL-COMBUSTION ENGINE

DEVICE AND PROCEDURE FOR CHOICE MEADOWS THE OPERATION OF AN INTERNAL-COMBUSTION ENGINE WITH FIRST OR A SECOND FUEL

Plant to the fuel inlet of an internal-combustion engine switchable for starting on the same impulse

Engine utilizing a plurality of fuels, and a related method thereof

At least one donor cylinder (28) is coupled to an intake manifold. The intake manifold (16) is configured to feed a mixture of air and a first fuel, or a mixture of air, the first fuel, and a second fuel to the at least one donor cylinder. At least one non-donor cylinder (30) is coupled to the intake manifold (16) and an exhaust manifold (18). The intake manifold (16) is further configured to feed air, or a mixture of air and the second fuel to the at least one non-donor cylinder (30). An exhaust channel (36) extend from the at least one donor cylinder (28) to the intake manifold (16) for recirculating an exhaust emission from the at least one donor cylinder (28) to the at least one donor (28), and non-donor cylinders (30) via the intake manifold (16).

Multi-fuel system for internal combustion engines

In a multi-fuel system for diesel engines, natural gas is mixed with diesel fuel and conditioned in a mixing chamber before being injected into the mixing chamber of the engine. Filtered blow-by gas may also be introduced into the combustion chamber. A computerized controller is used to determine and control the proportion of diesel fuel, natural gas fuel, the mixing and conditioning of these fuels, and the supply of filtered blow-by gas.

METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE WITH DIRECT INJECTION OF A GASEOUS FUEL MIXTURE COMPRISING METHANE AND HYDROGEN

A gaseous-fuelled internal combustion engine and a method of operating same are provided for improving combustion stability and reducing emissions of NOx, PM, and unburned hydrocarbons. The method comprises fuelling an internal combustion engine with hydrogen and natural gas, which can be directly injected into the combustion chamber together or introduced separately. Of the total gaseous fuel delivered to the engine, at least 5% by volume at standard temperature and pressure is hydrogen. For at least one engine operating condition, the ratio of fuel rail pressure to peak in-cylinder pressure is at least 1.5:1. The engine comprises a combustion chamber defined by a cylinder, a cylinder head, and a piston movable within the cylinder; and a fuel injection valve operable for introducing the gaseous fuel mixture directly into the combustion chamber, or two separate fuel injection valves for introducing the methane and hydrogen separately. An electronic controller is in communication with actuator ...

METHOD AND APPARATUS FOR CONTROLLING COMBUSTION QUALITY OF A GASEOUS-FUELLED INTERNAL COMBUSTION ENGINE

A method and apparatus is disclosed for controlling to a target heat release rate (HRR) using a HRR control lever, namely, pilot fuel timing and/or pilot fuel quantity, used in a gaseous-fuelled compression ignition internal combustion engine. The mechanism to control HRR to a target HRR provides improved performance and emissions for such an engine. A target HRR is determined for a cycle of an engine. A HRR control lever is then used to adjust to the target HRR in consideration of combustion conditions in the engine and the difference between the target HRR and Cycle HRR predicted for the cycle by reference to, by way of example, a derived HRR trace from a previous cycle, a pressure trace, a measured property of the exhaust gas directly determined or mapped values provided during calibration allowing for adjustment to a target HRR for the engine. The mapped values can be cross-referenced to the combustion conditions in the engine.

DIRECT INJECTION GASEOUS FUELLED ENGINE AND METHOD OF CONTROLLING FUEL INJECTION PRESSURE

An engine operating method comprises delivering gaseous fuel to a fuel injection valve and then injecting it directly into a combustion chamber during a compression stroke, determining a value for at least one pre-selected engine parameter from engine operating conditions and regulating gaseous fuel injection pressure by commanding gaseous fuel injection pressure to a target value, and measuring actual gaseous fuel injection pressure and adjusting fuel injection pulsewidth to correct for differences between the predetermined target value and the actual gaseous fuel injection pressure to thereby inject the desired mass quantity of gaseous fuel as determined from an engine map. A disclosed direct injection gaseous-fuelled engine system comprises a fuel delivery subsystem, a fuel injection valve, and a controller that cooperate with each other to introduce a gaseous fuel into a combustion chamber where it can be combusted. The fuel delivery subsystem comprising a device for controlling gaseous ...

CONTROL METHOD AND APPARATUS FOR GASEOUS FUELLED INTERNAL COMBUSTION ENGINE

Disclosed is a method and apparatus to create an environment within a combustion chamber of an internal combustion engine suitable for auto-ignition and combustion of a fuel that will not otherwise auto-ignite. Under high load conditions a pilot quantity of the fuel is injected in the combustion chamber of an internal combustion engine during the compression stroke of the piston. The quantity and timing of the fuel are chosen to heat an intake charge within the combustion chamber to a temperature at or above the auto-ignition temperature of the fuel by the time required for a main injection of the fuel to drive the piston during the power stroke. Generally, auto-ignition temperatures should be reached at or near top dead center of the piston. Also, disclosed is an injector design to deliver the fuel in manner taught by the method.

METHOD OF ADJUSTING INJECTION, COMBUSTION AND/OR POST-TREATMENT PARAMETERS OF AN INTERNAL COMBUSTION ENGINE WITH AUTO-IGNITION

La présente invention concerne un procédé de réglage des paramètres d'injection, de combustion et/ou de post-traitement d'un moteur à combustion interne à auto-allumage caractérisé en ce qu'il comporte une étape de détermination de la teneur et du type de biocarburant présent dans le carburant alimentant le système d'injection. L'invention concerne également un système de motorisation et un équipement pour la mise en oeuvre de ce procédé, mettant en oeuvre un capteur (8) pour la détermination de la teneur et du type de biocarburant présent dans le carburant alimentant le système d'injection.

LPG FUEL SHUTOFF SYSTEM

The present invention relates to a system for shutting off the LPG fuel supply route in a vehicle except in case of necessity. Namely, when an engine is stopped and a starting switch is in switched off, a solenoid valve is operated to shut off the LPG fuel supply route to prevent the LPG fuel from leaking out to the carburetor and to keep the vehicle from suddenly lurching out.

EXHAUST GAS RECIRCULATION METHODS AND APPARATUS FOR REDUCING NOX EMISSIONS FROM INTERNAL COMBUSTION ENGINES

Disclosed is a method of operating an internal combustion engine using exhaust gas recirculation (EGR) in combination with directly injected gaseous fuels that are burned within the engine in a stratified combustion mode. An engine with EGR is used is disclosed that includes an injector adapted to provide a high pressure quantity of fuel into a combustion chamber within a given pressure range, at a given angle and through a nozzle hole size to help provide for EGR tolerance and, consequently, reduce emissions.

GASEOUS FUEL SYSTEM FOR BI-FUEL ENGINES

A gas fuel system for a bi-fuel engine includes an injector block assembly that supports gas fuel injectors between an injector block and an inlet header. The block assembly may be mounted beside or behind the engine remote from the engine intake ports where gasoline fuel or gaseous fuel (gas) may be injected for powering the engine. The block assembly connects the injectors through individual distribution lines with separate port openings of an adapter plate mounted between the air intake manifold and the engine intake ports to provide for injection of gas to the intake ports from the remote location. Mounting of the injectors in the remote block assembly, which feeds the adapter, avoids changes to a developed gasoline fuel system in the engine, thus reducing development and production costs. The block assembly may also be modified to use other available gas injectors without affecting the conventional engine components.

GASEOUS AND LIQUID FUEL INJECTOR

A dual fuel injector comprising: (a) an injector body; (b) an inlet port (7, 8) in the injector body for enabling pressurized hydraulic fluid from a hydraulic fluid source to be introduced into the interior of the injector body, said hydraulic fluid being of sufficient pressure to maintain injection valves (16, 17) in the injector body in a closed position until actuated; (c) a first inlet port (6) in the injector body for enabling a first fuel to be introduced; (d) a first injection valve (16) in the injection body connected to the first inlet port (6); (e) a second inlet port (23) in the injector body for enabling a second fuel to be introduced; (f) a second injection valve (17) in the injector body connected to the second inlet port (23) for controlling injection of the second fuel; (g) a first control valve (3) which causes the hydraulic fluid to actuate the first injection valve; (h) a second control valve (2) which causes the hydraulic fluid to actuate the second injection valve ( ...

METHOD AND APPARATUS FOR OPERATING A DUAL FUEL INTERNAL COMBUSTION ENGINE

An internal combustion engine is provided that can burn two fuels. There are conditions when the main fuel is unavailable either temporarily or until the system's store of main fuel is replenished. An apparatus is provided for determining when to fuel an internal combustion engine with main fuel and secondary fuel or secondary fuel alone. The apparatus comprises a main-fuel supply system comprising a main-fuel injection valve that is operable to introduce said main fuel into a combustion chamber of said engine; a secondary-fuel injection system comprising a secondary-fuel injection valve that is operable to introduce said secondary fuel directly into said combustion chamber; a pressure sensor associated with said main-fuel supply system for determining an available injection pressure inside said main-fuel injection valve; and, an electronic controller in communication with said pressure sensor and programmable to separately command actuation of said secondary-fuel injection valve and said ...

TUNING FUEL COMPOSITION FOR DRIVING CYCLE CONDITIONS IN SPARK IGNITION ENGINES

Tuning fuel composition delivered to a spark ignition, internal combustion engine as a function of driving cycle conditions results in improvements in one or more of fuel efficiency and combustion emissions.

FUEL COMPOSITION SUPPLY MEANS FOR SPARK IGNITION ENGINES

A fuel system for on-board vehicle fuel separation to supply engine fuel compositions formulated as a function of driving cycle conditions. The invention results in improvements in one or more of feed efficiency and combustion emissions.

PROPANE POWER BOOSTER

GAS ENGINE

A compression ignition internal combustion engine (1) which operates using a methane based fuel and an ignition initiator. The fuel and method of operating the engine (1) can be employed in a range of applications such as, for example, road or marine vehicles or in static applications such as electrical generators.

METHOD FOR PARTIAL DECARBONIZATION OF HYDROCARBON FUELS ON BOARD COMBUSTION-BASED TRANSPORTATION VEHICLES TO REDUCE CO2 EMISSIONS

... ²²²A method and apparatus for the reduction of carbon dioxide emissions by the on-²board treatment of a portion or all of the hydrocarbon fuel used to power an ²internal combustion engine mounted in a conventional transportation vehicle, ²utilize known decarbonization technology to break the fuel's hydrogen-carbon ²bond. The compounds are then cooled and separated into (1) elemental carbon ²powder that is stored on-board for later recovery and industrial use, and (2) ²hydrogen, or a hydrogen-rich gas stream, that is burned as a fuel in the ICE ²and/or diverted to other on-board energy related applications.² ...

GASEOUS AND LIQUID FUEL INJECTOR

A dual fuel injector comprising: (a) an injector body; (b) an inlet port (7, 8) in the in-jector body for enabling pressurized hydraulic fluid from a hydraulic fluid source to be in-troduced into the interior of the injector body, said hydraulic fluid being of sufficient pres-sure to maintain injection valves (16, 17) in the injector body in a closed position until actuated; (c) a first inlet port (6) in the in-jector body for enabling a first fuel to be in-troduced; (d) a first injection valve (16) in the injection body connected to the first in-let port (6); (e) a second inlet port (23) in the injector body for enabling a second fuel to be introduced; (f) a second injection valve (17) in the injector body connected to the sec-ond inlet port (23) for controlling injection of the second fuel; (g) a first control valve (3) which causes the hydraulic fluid to actuate the first injection valve; (h) a second control valve (2) which causes the hydraulic fluid to actuate the second injection ...

FUMIGATION SYSTEM FOR A DIESEL ENGINE

A system and method is provided to reduce particulate and NOx emissions from diesel engines through the use of a duel-fuel fumigation system. The system injects a gaseous-fuel flow into the air intake stream of a diesel engine. This results in more complete combustion within the engine as well as reduced diesel fuel usage, which each work to reduce emission outputs of the engine. As presented, the system is operative to meter the gaseous-fuel flow into the diesel engine based on one or more engine parameters such as, for example, exhaust gas temperature, exhaust oxygen levels, engine speed and/or engine load. Monitoring one or more engine parameters allows fine-tuning the flow of gaseous fuel into the engine and thereby prevents loss of engine power at high- end loads while maintaining favorable emission outputs over substantially the entire operating range of the engine.

GASEOUS AND LIQUID FUEL INJECTION VALVE WITH CONCENTRIC NEEDLES

A gaseous and liquid fuel injection valve for an internal combustion engine comprises an injection valve body that houses two separate concentric fuel injection valve assemblies. The first valve assembly is a pilot fuel needle valve assembly, which comprises a first needle movable in the direction of the longitudinal axis of the body between an open and a closed position. The pilot fuel valve assembly controls the injection of pilot fuel into a combustion chamber of the engine through a plurality of pilot fuel holes formed in a nozzle tip of the pilot needle valve assembly. The second valve assembly is a gaseous fuel needle valve assembly, which comprises a second needle movable in the direction of the longitudinal axis between an open and a closed position. The gaseous fuel needle valve assembly controls the injection of gaseous fuel into the combustion chamber through a plurality of gaseous fuel holes formed in a nozzle tip of the gaseous fuel needle valve assembly. At least one of the ...

ALCOHOL DISCRIMINATOR AND FUEL CONTROL FOR AN INTERNAL COMBUSTION ENGINE FUELED WITH ALCOHOL-GASOLINE FUEL MIXTURES

An apparatus for discriminating between different types of alcohol contained in alcohol-gasoline fuel mixtures, such as methanol or ethanol, and a fueling system for controlling the quantity of alcohol-gasoline fuel mixture delivered to an internal combustion engine in accordance with type of alcohol determined to be present in the fuel mixture are described. The resistivity of the fuel mixture delivered to the engine is measured using a fuel resistance sensor. Based upon the measured resistivity, the type of alcohol contained in the fuel mixture is determined and indicated. The fuel system then adjusts the quantity of the fuel mixture delivered to the engine based upon the indicated type of alcohol and the sensed alcohol concentration in the fuel mixture.

MULTI-FUEL ENGINE CONTROL WITH FUEL TRANSITION DELAY

DUAL FUEL SYSTEM

A dual fuel system for motor vehicles having an internal combustion engine with electronic fuel injection equipment designed for use with gasoline fuel, wherein a delivery system for an alternate fuel, such as compressed natural gas or the like, is provided. The alternat fuel delivery system comprises a pilot valve regulated by a separate electronic fuel injector connected to the vehicle's electronic control module is also connected on one side of the pilot valve to a pressurized tank of gaseous fuel, and on the other side to the vehicle's throttle body for delivery of the alternate fuel thereto in the proper amounts called for by the vehicle's original electronic control module. The same electronic control module regulates the amount of alternate fuel such as compressed natural gas delivered to the engine when operating on the alternate fuel as well as the amount of gasoline when operating in that mode.

FUEL/GAS DELIVERY SYSTEM FOR INTERNAL COMBUSTION ENGINES

... 2135765 9323668 PCTABS00028 A method of operating an internal combustion engine in which quantities of a hydrocarbon fuel and hydrogen are introduced into the combustion chamber of the engine. The combustion chamber is provided with igniter means and the delivery of hydrogen is timed relative to the delivery of the fuel and preferably also the activation of the igniter means to establish an ignitable mixture at the igniter means at the time of activation of the igniter means.

CYLINDER CAP FUER A PISTON COMBUSTION ENGINE.

MECHANISM FOR AUTOMATICALLY ADJUSTING AT LEAST ONE OPERATING PARAMETER OF AN INTERNAL COMBUSTION SUPPLIES ALCOHOL-GASOLINE.

METHOD AND DEVICE FOR DETERMINING THE COMPOSITION OF AN ALCOHOL-GASOLINE AND APPLICATION TO AUTOMATICALLY ADJUSTING AN ENGINE SUPPLIES A VARIABLE MIXTURE OF ALCOHOL CONTENT.

MECHANISM FOR INJECTING DIESEL OIL AS ZUENDOEL AND LIQUID MAIN FUEL.

MECHANISM FOR INJECTING DIESEL OIL AS ZUENDOEL AND LIQUID MAIN FUEL.

Selfbrilliant internal combustion engine for the enterprise with raw vegetable oils.

Die vorliegende Erfindung betrifft eine selbstzündende Verbrennungskraftmaschine bestückt mit Einspritzdüsen (20) mit PVD-Beschichtung an deren brennraumseitigen Aussenflächen um die uneingeschränkte Feldtauglichkeit selbstzündender Brennkraftmaschinen beim Betrieb mit problematischen, rohen Pflanzenölen zu ermöglichen. Die aufgebrachte adhäsions- und diffusionshemmende Barriere in Form von dünnen, keramischen Schichten (11) nach dem PVD-Verfahren an den brennraumseitigen Aussenflächen der Einspritzdüsen (20) unterdrückt den Aufbau von dicken, teerigen Ablagerungen an den kritischen Bereichen der Einspritzdüse (20) einschliesslich der Spritzlochaustrittsöffnungen (17).

Device fur the regular supply from different flussigen fuels to the internal burn in a diesel engine or in several diesel engines.

Lifting cylinder internal-combustion engine.

Engine Control Device.

Die Erfindung betrifft ein Motorsteuergerät (16) einer Brennkraftmaschine, insbesondere einer mit Diesel oder mit Schweröl oder mit Gas betriebenen Brennkraftmaschine, wobei die Brennkraftmaschine eine Kraftstoffversorgungsanlage, insbesondere eine Common-Rail-Kraftstoffversorgungsanlage, mit Magnetaktuatoren aufweist. Das Motorsteuergerät (16) umfasst Mittel (17, 18, 19), um im Stillstand der Brennkraftmaschine bei druckloser Kraftstoffversorgungsanlage automatisch einen Istwert mindestens einer magnetischen Kenngrösse mindestens eines Magnetaktuators (15) zu ermitteln und derart auszuwerten, dass das Motorsteuergerät (16) dann, wenn der jeweilige Istwert von einem entsprechenden Sollwert um weniger als einen vorbestimmten Betrag abweicht, automatisch auf einen ordnungsgemäss arbeitenden Magnetaktuator schliesst, wohingegen das Motorsteuergerät (16) dann, wenn der jeweilige Istwert vom entsprechenden Sollwert um mehr als einen vorbestimmten Betrag abweicht, automatisch auf einen nicht ...

Engine control unit.

Die Erfindung betrifft ein Motorsteuergerät (16) einer Brennkraftmaschine, insbesondere einer mit Diesel oder mit Schweröl oder mit Gas betriebenen Brennkraftmaschine, wobei die Brennkraftmaschine eine Kraftstoffversorgungsanlage, insbesondere eine Common-Rail-Kraftstoffversorgungsanlage, mit Magnetaktuatoren aufweist. Das Motorsteuergerät (16) umfasst Mittel (17, 18, 19), um im Stillstand der Brennkraftmaschine bei druckloser Kraftstoffversorgungsanlage automatisch einen Istwert mindestens einer magnetischen Kenngrösse mindestens eines Magnetaktuators (15) zu ermitteln und derart auszuwerten, dass das Motorsteuergerät (16) dann, wenn der jeweilige Istwert von einem entsprechenden Sollwert um weniger als einen vorbestimmten Betrag abweicht, automatisch auf einen ordnungsgemäss arbeitenden Magnetaktuator schliesst, wohingegen das Motorsteuergerät (16) dann, wenn der jeweilige Istwert vom entsprechenden Sollwert um mehr als einen vorbestimmten Betrag abweicht, automatisch auf einen nicht ...

Internal-combustion engine.

Compression-ignited combustion engine as well as procedure for mixing a fuel mixture.

Ein kompressionsgezündeter Verbrennungsmotor weist Verbrennungssensoren (23) auf für die Erfassung der Verbrennung des Brennstoffes in den Zylindern und mindestens eine elektronische Steuereinheit (21) für den Empfang von Signalen von den Verbrennungssensoren (23). Eine Brennstoffmischeinheit ist mit mindestens einer ersten Quelle von einem ersten Brennstoff und einer zweiten Quelle von einem Brennstoffkonditionierer verbunden. Basierend auf einem detektierten Beginn der Zündung des Brennstoffes im individuellen Zylinder verglichen mit dem Start der Brennstoffeinspritzung im besagten Zylinder steuert die mindestens eine elektronische Steuereinheit (21) das Mischverhältnis des ersten Brennstoffes und des Brennstoffkonditionierers in der Brennstoffmischung, welche durch die Mischeinheit (10) den Brennstoffeinspritzdüsen (14) zugeführt wird, sodass die Zündbarkeit der Brennstoffmischung verringert wird, wenn die Zündverzögerung einem vorbestimmten Wert für Brennstoffverzögerung entspricht.

A biomass generating d' source system, a system of a motor vehicle automobiles et Y un tel [...].

Linvention concerne un système de génération dénergie comprenant une première génératrice (3) fabriquant de lénergie électrique, un électrolyseur (7) fabriquant, à partir délectricité et deau, de loxygène et de lhydrogène, un échangeur de chaleur (15) fabriquant un gaz haute pression à partir dun fluide frigorigène, une turbine (14) produisant une énergie de rotation à partir du gaz haute pression et agencée pour entraîner en rotation la génératrice (3), et un moteur thermique (1) produisant une énergie de rotation, ledit moteur thermique (1) est alimenté par de lhydrogène, de loxygène et du carburant. Linvention concerne également un véhicule automobile et un groupe électrogène comprenant un tel système.

Power generation system, motor vehicle and power plant comprising such a system.

Linvention concerne un système de génération dénergie comprenant une génératrice (3) fabriquant de lénergie électrique, un électrolyseur (7) fabriquant, à partir délectricité et deau, de loxygène et de lhydrogène et un moteur thermique (1) produisant une énergie de rotation et configuré pour que la génératrice (3) soit accouplée à la rotation du moteur thermique (1), ledit moteur thermique (1) est alimenté par de lhydrogène, de loxygène et du carburant. Linvention concerne également un véhicule automobile et un groupe électrogène comprenant un tel système.

Method for operating a drive unit and drive unit.

Es werden ein Verfahren zum Betreiben eines Antriebsaggregates und ein Antriebsaggregat beschrieben. Bei dem Verfahren wird Wasserdampf erzeugt, der bei erhöhter Temperatur in Anwesenheit mindestens eines Katalysators thermolytisch zu Wasserstoff und Sauerstoff zersetzt wird. Das erzeugte Gasgemisch wird zusammen mit einem Kraftstoff auf Kohlenwasserstoffbasis und mit Luft in einen Brennraum des Antriebsaggregates eingeführt und dort zur Initiierung einer Knallgasreaktion gezündet. Das entsprechende Antriebsaggregat weist einen im Wesentlichen herkömmlich ausgebildeten Motor (1) oder eine Turbine auf, ferner einen Wasserdampferzeuger (13) und einen Wärmetauscher (4) zur Erhöhung der Temperatur des erzeugten Wasserdampfes. In einem Brennraum des Antriebsaggregates findet bei Zündung des Kraftstoff-Luft-Gemisches eine Knallgasreaktion statt, die ein entsprechendes Antriebselement antreibt.

SYSTEM OF OPTIMIZATION OF FUEL FOR MOVABLE MEANS AND CORRESPONDING METHOD

HYBRID FUEL AND METHOD OF ITS PRODUCTION

SYSTEM AND METHOD OF OPTIMAL FEED ENGINE FUEL

MUCH FUEL SYSTEM FOR INTERNAL COMBUSTION ENGINES

СПОСОБ ОСУЩЕСТВЛЕНИЯ СЖИГАНИЯ И ОБОРУДОВАНИЕ ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Способ сжигания материала с очень низким цетановым числом, который состоит во впрыскивании указанного материала в цилиндр сгорания двигателя с компрессионным зажиганием и раздельной подачей горючего и воздуха, и в обеспечении подачи к впускному отверстию цилиндра воздуха для сжигания или рабочей текучей субстанции с температурой, которая значительно превышает температуру окружающей среды, на протяжении практически всего времени работы двигателя. Другой аспект данного изобретения представляет двигатель с компрессионным зажиганием для использования в данном способе.

СПОСОБ СЖИГАНИЯ И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Способ сжигания материала с очень низким цетановым числом, включающий впрыск указанного материала в цилиндр сгорания двигателя для гетерогенных рабочих смесей с воспламенением от сжатия и подачу на вход цилиндра воздуха или рабочей среды при температуре существенно выше температуры окружающей среды в течение практически всего времени работы двигателя. Согласно другим аспектам изобретения предложен двигатель с воспламенением от сжатия для применения в способе и способ применения двигателя для сжигания топлива.

СПОСОБ ОПТИМИЗАЦИИ РАБОЧИХ ПАРАМЕТРОВ ТЕПЛОВОГО ДВИГАТЕЛЯ

Заявлен способ оптимизации работы теплового двигателя, который управляется электронной или цифровой системой (12), которая включает по крайней мере один параметр или один закон, или одну картографическую базу данных относительно впрыскивания, сгорания или дальнейшей обработки в двигателе. Изобретение отличается тем, что включает этап анализа молекулярной структуры топлива с помощью по крайней мере одного датчика (7), расположенного в топливной схеме двигателя (1), которая включает систему заправки (3), топливный бак (2), насос (5), топливный фильтр (6) и топливную систему двигателя (4), а также обратную схему (11) к топливному баку и этап выбора или изменения параметра, закона или картографической базы данных относительно впрыскивания, сгорания или дальнейшей обработки в двигателе, соответственно результату анализа. Используется спектроскопический анализ, например анализ ближнего инфракрасного спектра, ультрафиолетовый спектроскопический анализ и/или спектроскопический анализ ядерного магнитного ...

SYSTEM AND METHOD OPTIMAL ENGINE FUEL FEED

LARGE TWO-STROKE COMPRESSION-IGNITED INTERNAL COMBUSTION ENGINE WITH FUEL INJECTION SYSTEM FOR LOW FLASHPOINT FUEL AND A FUEL VALVE THEREFORE

A large two-stroke turbocharged compression-ignited internal combustion crosshead engine with a plurality of cylinders has at least one pressure booster for each cylinder for boosting fuel pressure, two or more electronically controlled fuel valves for each cylinder with an inlet of the two or more electronically controlled fuel valves being connected to an outlet of the at least one pressure booster. An electronic control unit is connected to the at least one pressure booster and the two or more electronically controlled fuel valves. The electronic control unit is configured to determine a start time for a fuel injection event, activate the at least one pressure booster ahead of the determined start time and pen the two or more electronically controlled fuel valves at the determined start time. 18-. (canceled)9. A fuel valve for injecting low flashpoint liquid fuel into the combustion chamber of a large slow running two-stroke turbocharged self-igniting internal combustion engine , said fuel valve comprising:an elongated valve housing with a rear end and a front end,a nozzle with a plurality of nozzle holes, said nozzle being disposed at the front end of said elongated valve housing,a fuel inlet port in said elongated valve housing for connection to a source of pressurized low flashpoint fuel,an actuation fluid port in said elongated valve housing for connection to a source of actuation fluid,an axially displaceable valve needle slidably received in a longitudinal bore in said fuel valve, said valve needle having a closed position and an open position and said valve needle being biased towards said closed position,said valve needle allowing flow of fuel from a fuel cavity to said plurality of nozzle holes when the valve needle is in its open position and said valve needle preventing flow of fuel from said fuel cavity to said plurality of nozzle holes when the valve needle is in its closed position,said valve needle being operably connected to a needle actuation ...

LARGE TWO-STROKE COMPRESSION-IGNITED INTERNAL COMBUSTION ENGINE WITH FUEL INJECTION SYSTEM FOR LOW FLASHPOINT FUEL AND A FUEL VALVE THEREFORE

A large two-stroke turbocharged compression-ignited internal combustion crosshead engine with a plurality of cylinders has at least one pressure booster for each cylinder for boosting fuel pressure, two or more electronically controlled fuel valves for each cylinder with an inlet of the two or more electronically controlled fuel valves being connected to an outlet of the at least one pressure booster. An electronic control unit is connected to the at least one pressure booster and the two or more electronically controlled fuel valves. The electronic control unit is configured to determine a start time for a fuel injection event, activate the at least one pressure booster ahead of the determined start time and pen the two or more electronically controlled fuel valves at the determined start time. 115-. (canceled)16. A fuel valve for injecting low flashpoint liquid fuel into the combustion chamber of a large slow running two-stroke turbocharged self-igniting internal combustion engine , said fuel valve comprising:an elongated valve housing with a rear end and a front end,a nozzle with a plurality of nozzle holes, said nozzle being disposed at the front end of said elongated valve housing,a fuel inlet port in said elongated valve housing for connection to a source of pressurized low flashpoint fuel, an actuation fluid port in said elongated valve housing for connection to a source of actuation fluid,an axially displaceable valve needle slidably received in a longitudinal bore in said fuel valve, said valve needle having a closed position and an open position and said valve needle being biased towards said closed position,said valve needle allowing flow of fuel from a fuel cavity to said plurality of nozzle holes when the valve needle is in its open position and said valve needle preventing flow of fuel from said fuel cavity to said plurality of nozzle holes when the valve needle is in its closed position,a pump piston received in a first bore in said valve housing with ...

FUEL INJECTOR

A fuel injector for an internal combustion engine is disclosed. The fuel injector is particularly suitable for use as a dual fuel injector, and comprises a generally tubular outer valve needle, an inner valve needle slidably received in the outer valve needle, and a nozzle body assembly comprising a tip part and a needle guide part. The tip part defines a seating region for the outer valve needle, and the needle guide part comprises a guide bore for slidably receiving the outer valve needle. In one embodiment, a lower bore region of the needle guide part defines a. cavity around the outer valve needle which houses a biasing spring for the outer valve needle and a fuel. A collar for seating the biasing spring can be dimensioned to allow free flow of the fuel from the cavity into an annular accumulator volume defined between the outer valve needle and the bore of the tip part. 1. A fuel injector for an internal combustion engine , comprising:a generally tubular outer valve needle arranged to control the injection of a first fuel from the fuel injector;an inner valve needle slidably received in the outer valve needle; anda nozzle body assembly comprising a tip part and a needle guide part;wherein the tip part defines a seating region for the outer valve needle; andwherein the needle guide part comprises a guide bore for slidably receiving the outer valve needle and a lower bore region adjacent the tip part, the lower bore region of the needle guide part having a larger bore diameter than the guide bore and defining a cavity formed around the outer valve needle for receiving a biasing means and the first fuel.2. The fuel injector according to claim 1 , wherein the biasing means is configured to bias the outer valve needle into engagement with the seating region defined by the tip part.3. The fuel injector according to claim 1 , wherein the outer valve needle includes a collar dimensioned to allow free flow of the first fuel from the cavity into an accumulator volume ...

System and Method For Managing a Volatile Organic Compound Emission Stream

A Volatile Organic Compound (VOC) mitigation system employs a combination of technologies coupling VOC laden exhaust with a reciprocating engine and generator system (Combined Heat & Power (CHP) System) with heat recovery to destroy the VOC emissions and generate electric power and useful thermal energy.

FLOW LIMITING VALVE, IN PARTICULAR FOR A DUAL FUEL INJECTION SYSTEM

A flow limiting valve, comprising a valve body adjustable between a closed position and an open position, wherein in the open position a flow channel for a conveying fluid is opened in the flow limiting valve and in the closed position the flow channel is closed, whereby the adjustment of the valve body is subject to conveying fluid pressure; wherein a control valve is integrated into a housing of the flow limiting valve through which the valve body is adjustable between open and closed positions, regardless of the conveying fluid. 1. A flow limiting valve , comprising:a housing;a valve body adjustable between a closed position and an open position, wherein in the open position a flow channel for a conveying fluid is opened in the flow limiting valve and in the closed position the flow channel is closed, whereby the adjustment of the valve body is subject to conveying fluid pressure; anda control valve integrated into the housing of the flow limiting valve through which the valve body is adjustable between open and closed positions, regardless of the conveying fluid.2. The flow limiting valve according to claim 1 , wherein the flow limiting valve is used in a dual-fuel injection system.3. The flow limiting valve according to claim 1 , wherein a control element of the control valve operates the valve body and is adjustable by a control fluid.4. The flow limiting valve according to claim 3 , wherein the control element is an adjusting piston and is located within a piston housing supplied by the control fluid.5. The flow limiting valve according to claim 3 , wherein end faces of the control element or of a component connected with the control element are supplied by the control fluid at different pressures.6. The flow limiting valve according to claim 5 , wherein a throttle is integrated into a control line for conveying the control fluid.7. The flow limiting valve according to claim 6 , wherein opposite end faces of the control element or of components connected with ...

COMPOSITE MEMBRANES WITH IMPROVED PERFORMANCE AND/OR DURABILITY AND METHODS OF USE

A composite membrane for selectively separating (e.g., pervaporating) a first fluid (e.g., first liquid) from a mixture comprising the first fluid (e.g., first liquid) and a second fluid (e.g., second liquid). The composite membrane includes a porous substrate comprising opposite first and second major surfaces, and a plurality of pores. A pore-filling polymer is disposed in at least some of the pores so as to form a layer having a thickness within the porous substrate. The composite membrane further includes at least one of: (a) an ionic liquid mixed with the pore-filling polymer; or (b) an amorphous fluorochemical film disposed on the composite membrane. 1. An asymmetric composite membrane for selectively pervaporating alcohol from an alcohol and gasoline feed mixture , the asymmetric composite membrane comprising:a porous substrate comprising opposite first and second major surfaces, and a plurality of pores; anda pore-filling polymer disposed in at least some of the pores so as to form a layer having a thickness within the porous substrate, with the amount of the pore-filling polymer at, or adjacent to, the first major surface being greater than the amount of the pore-filling polymer at, or adjacent to, the second major surface;wherein the pore-filling polymer is more permeable to alcohol than gasoline;wherein the asymmetric composite membrane further comprises an amorphous fluorochemical film disposed on the composite membrane.2. The composite membrane according to wherein the amorphous fluorochemical film has a thickness of 0.01 μm to 5 μm.3. The composite membrane according to wherein the amorphous fluorochemical film is a plasma-deposited fluorochemical film.4. The composite membrane according to wherein the plasma-deposited fluorochemical film is derived from one or more fluorinated compounds selected from:linear, branched, or cyclic saturated perfluorocarbons;linear, branched, or cyclic unsaturated perfluorocarbons;linear, branched, or cyclic saturated ...

Optimized fuel management system for direct injection ethanol enhancement of gasoline engines

Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.

Production of Renewable Hydrocarbon Compositions

Provided herein are processes and microorganisms which utilize both protein hydrolysates and carbohydrates from biomass feedstocks to produce renewable hydrocarbon compositions. Advantages of the disclosed methods may be recognized in fuel blends comprising such hydrocarbon compositions. 118-. (canceled)19. A method for producing a butanol and fusel oil mixture from a biomass feedstock comprising:a) providing a biomass feedstock;b) processing the biomass feedstock to produce a processed feedstock slurry comprising protein hydrolysates and oligosaccharides;c) saccharifying the oligosaccharides of the processed feedstock slurry to produce a fermentation composition comprising fermentable sugars and protein hydrolysates; (i) a heterologous butanol biosynthetic pathway for production of butanol; and,', '(ii) at least one upregulated Ehrlich pathway gene for production of fusel oil;', 'whereby a butanol and fusel oil mixture is produced; and,, 'd) fermenting a recombinant yeast in the presence of the fermentation composition, said recombinant yeast comprisinge) recovering the butanol and fusel oil mixture;wherein the yield of the butanol and fusel oil mixture per kilogram of biomass feedstock is increased as compared to that produced by a recombinant yeast which does not comprise at least one upregulated Ehrlich pathway gene and recovered.20. The method of claim 19 , step (b) wherein processing the biomass feedstock to produce a processed feedstock slurry comprising protein hydrolysates and oligosaccharides comprises liquefying the biomass feedstock in the presence of at least one protease.21. The method of claim 19 , step (b) wherein processing the biomass feedstock to produce a processed feedstock slurry comprising protein hydrolysates and oligosaccharides comprises:1) liquefying the biomass feedstock to create a feedstock slurry comprising oligosaccharides, undissolved solids, and water; i. an aqueous solution comprising oligosaccharides; and', 'ii. a wet cake co- ...

DUAL FUEL LOCKOUT SWITCH FOR GENERATOR ENGINE

A mechanical fuel lockout switch for a dual fuel engine includes a mechanical fuel valve actuatable between a first position and a second position to selectively control fuel flow to the dual fuel engine from a first fuel source through a first fuel line and a second fuel source through a second fuel line. The mechanical fuel lockout switch also includes a fuel lockout apparatus coupled to the mechanical fuel valve. The mechanical fuel lockout switch communicates the first fuel source to the dual fuel engine and prevents communication between the second fuel source and the dual fuel engine when the mechanical fuel valve is in the first position, and communicates the second fuel source to the dual fuel engine and interrupts the first fuel source communication with the dual fuel engine when in the second position. 1. A dual fuel generator and fuel delivery system comprising:a dual fuel generator configured to operate on a liquid fuel supplied from a liquid fuel source through a liquid fuel line and a gaseous fuel supplied from a pressurized fuel source through a gaseous fuel line; a primary pressure regulator coupled to a service valve of the pressurized fuel source and configured to regulate the fuel supplied from the pressurized fuel source to a reduced pressure; and', 'a secondary pressure regulator coupled to the primary pressure regulator and configured to regulate the gaseous fuel supplied from the primary pressure regulator to a desired pressure for delivery through the gaseous fuel line to operate the dual fuel generator; and', 'a mechanical fuel valve actuatable between a first position and a second position to selectively control fuel flow to the dual fuel generator from the liquid fuel source through the liquid fuel line and the pressurized fuel source through the gaseous fuel line., 'a fuel regulator system located off board the dual fuel generator, the fuel regulator system comprising2. The dual fuel generator and fuel delivery system of further ...

PROPULSION SYSTEM, AND METHOD FOR OPERATING A PROPULSION SYSTEM

Various implementations include propulsion systems and related methods of operation. In one implementation, a system includes: an internal combustion engine, wherein the internal combustion engine has a combustion chamber for burning a fossil fuel, an electrolysis chamber for producing hydrogen gas and oxygen gas, a turbocharger, a supply line connecting a compressor of the turbocharger to the combustion chamber, the supply line designed to convey a gas mixture including at least a part of the hydrogen gas and the oxygen gas to the combustion chamber, a gasification tank with volatile organic compounds received therein, and an air supply for supplying compressed air into the gasification tank, wherein the gas mixture, which is guided via the supply line to the combustion chamber, also includes gasified organic compounds from the gasification tank. 1. A system , comprisingan internal combustion engine,wherein the internal combustion engine has a combustion chamber for burning a fossil fuel,an electrolysis chamber for producing hydrogen gas and oxygen gas,a turbocharger,a supply line connecting a compressor of the turbocharger to the combustion chamber, the supply line designed to convey a gas mixture including at least a part of the hydrogen gas and the oxygen gas to the combustion chamber,a gasification tank with volatile organic compounds received therein, andan air supply for supplying compressed air into the gasification tank,wherein the gas mixture, which is guided via the supply line to the combustion chamber, also includes gasified organic compounds from the gasification tank.2. The system as defined in claim 1 , further comprising:a vacuum pump for drawing off the hydrogen gas and the oxygen gas from the electrolysis chamber,wherein the vacuum pump and the gasification tank are arranged so that the hydrogen gas and the oxygen gas can be conveyed at least partially through the vacuum pump from the electrolysis chamber into the gasification tank to produce the ...

MANAGING FUEL OIL MIXTURE IN ENGINES

A fuel tank containing a fuel and oil mixture is managed to determine if the fuel and oil mixture contains the correct ratio for a motor. The fuel tank containing a fuel and oil mixture is monitored. A fuel to oil ratio is selected for the motor. A combined viscosity of the fuel and oil mixture is calculated with respect to the fuel to oil ratio, and the temperature of the fuel and oil mixture. The combined viscosity is used to determine a predetermined range of the combined viscosity. The viscosity of the fuel and oil mixture within the fuel tank is measured as a measured viscosity. If the measured viscosity of the fuel and oil mixture does not correspond with the predetermined range, then a user may be alerted that the measured viscosity does not correspond with the predetermined range. 1selecting a fuel to oil ratio of a first motor for a fuel and oil mixture within a fuel tank, wherein the first motor is a spark ignited motor; inputting a first fuel viscosity of the fuel,', 'inputting a first oil viscosity of the oil,', 'measuring the first temperature of the fuel and oil mixture, and', 'determining the combined viscosity of the fuel and oil mixture;, 'calculating a combined viscosity of the fuel and oil mixture for a lookup table wherein calculating the combined viscosity comprises an upper limit of the combined viscosity of the fuel and oil mixture, and', 'a lower limit of the combined viscosity of the fuel and oil mixture;, 'determining, in response to calculating, a predetermined range of the combined viscosity, wherein the predetermined range includesmeasuring a measured viscosity of the fuel and oil mixture within the fuel tank;alerting a user that the measured viscosity of the fuel to oil mixture does not correspond with the predetermined range of the combined viscosity;determining an additional portion of oil to be added to the fuel and oil mixture; andadding the additional portion of oil to the fuel and oil mixture.. A method for determining a fuel to ...

Managing fuel oil mixture in engines

A fuel tank containing a fuel and oil mixture is managed to determine if the fuel and oil mixture contains the correct ratio for a motor. The fuel tank containing a fuel and oil mixture is monitored. A fuel to oil ratio is selected for the motor. A combined viscosity of the fuel and oil mixture is calculated with respect to the fuel to oil ratio, and the temperature of the fuel and oil mixture. The combined viscosity is used to determine a predetermined range of the combined viscosity. The viscosity of the fuel and oil mixture within the fuel tank is measured as a measured viscosity. If the measured viscosity of the fuel and oil mixture does not correspond with the predetermined range, then a user may be alerted that the measured viscosity does not correspond with the predetermined range.

MANAGING FUEL OIL MIXTURE IN ENGINES

A fuel tank containing a fuel and oil mixture is managed to determine if the fuel and oil mixture contains the correct ratio for a motor. The fuel tank containing a fuel and oil mixture is monitored. A fuel to oil ratio is selected for the motor. A combined viscosity of the fuel and oil mixture is calculated with respect to the fuel to oil ratio, and the temperature of the fuel and oil mixture. The combined viscosity is used to determine a predetermined range of the combined viscosity. The viscosity of the fuel and oil mixture within the fuel tank is measured as a measured viscosity. If the measured viscosity of the fuel and oil mixture does not correspond with the predetermined range, then a user may be alerted that the measured viscosity does not correspond with the predetermined range. 1 a memory, and', 'a processor device communicatively coupled to the memory;', select a fuel to oil ratio of a first motor for a fuel and oil mixture,', 'calculate a combined viscosity of the fuel and oil mixture,', 'determine a predetermined range of the fuel to oil ratio and the fuel is ignited by a spark plug in the first motor; and, 'the processor device is configured to], 'a computing tool having 'measure a measured viscosity of the fuel to oil mixture within a fuel tank; and', 'a measurement tool that is communicatively coupled to the computing tool and configured to 'alert a user that the measured viscosity of the ratio of the fuel to oil mixture does not correspond with the predetermined range.', 'an alert tool that is communicatively coupled to the computing tool and configured to. A system for determining a fuel to oil mixture ratio comprising: The present disclosure relates to fluid handling, and more particular aspects relate to monitoring the mixture of a fluid using viscosity.Internal combustion engines turn a combustion of fuel into electrical and mechanical energy. Certain internal combustion engines have different power cycles (e.g., four stroke and two stroke). ...

METHOD AND SYSTEM FOR SECONDARY FLUID INJECTION CONTROL IN AN ENGINE

Methods and systems are provided for adjusting the amount of secondary fluid being injected into an engine. In one example, a method may include adjusting an amount of secondary fluid injected at an engine cylinder based on a secondary fluid injection amount estimated from outputs of an exhaust oxygen sensor. For example, the secondary fluid injection amount may be estimated based on a first change in pumping current of the exhaust oxygen sensor between a first and second reference voltage when only fuel is injected into the engine cylinder and a second change in pumping current of the exhaust oxygen sensor between the first and second reference voltage when fuel and the secondary fluid are injected into the engine cylinder. 1. A method , comprising:compressing intake air delivered to an engine with a compressor; andadjusting an amount of secondary fluid injected at an engine cylinder of the engine based on a first change in pumping current of an exhaust oxygen sensor between a first and second reference voltage when only fuel is injected into the engine cylinder and a second change in pumping current of the exhaust oxygen sensor between the first and second reference voltage when fuel and the secondary fluid are injected into the engine cylinder, wherein the exhaust oxygen sensor is a variable voltage oxygen sensor and wherein the second reference voltage is higher than the first reference voltage.2. The method of claim 1 , further comprising determining an estimated amount of secondary fluid injected at the engine cylinder based on a difference between the second change in pumping current and the first change in pumping current.3. The method of claim 2 , further comprising adjusting the amount of secondary fluid injected at the engine cylinder in response to the estimated amount of secondary fluid being a threshold amount different than a desired amount of secondary fluid injection claim 2 , the desired amount of secondary fluid injection based on engine operating ...

METHOD AND SYSTEM FOR IMPROVING FUEL ECONOMY AND REDUCING EMISSIONS OF INTERNAL COMBUSTION ENGINES

A method and system for improving the fuel economy and lowering the emissions of internal combustion engines by injecting predetermined amounts and ratios of on-board or locally generated hydrogen and oxygen to the engine's air intake and varying the gas addition volume and hydrogen/oxygen ratio as a function of the operating conditions, e.g., in line with the instant engine load. 1. A system for improving fuel economy of an internal combustion engine which combusts a carbon based fuel with air supplied by an air intake , the system comprising:a first source for supplying hydrogen gas;a second source for supplying oxygen gas, the second source being separate from the first source;a third source for supplying the carbon based fuel;a control system configured to continuously monitor one or more engine operating parameters to determine, on an ongoing basis, a pre-determined ratio of hydrogen gas to oxygen gas and a pre-determined total volume thereof to be injected into the air intake of the internal combustion engine to enhance the fuel economy thereof, wherein at least one engine operating parameter comprises an instant engine load corresponding to the internal combustion engine; anda metering system coupled to the first source, the second source and the air intake of the internal combustion engine, the metering system configured to independently select the pre-determined volumes of hydrogen gas and oxygen gas in the pre-determined ratio, as determined by the control system, from corresponding first and second sources, and provide the selected hydrogen and oxygen gases to the air intake of said internal combustion engine for combustion with the carbon based fuel,wherein a lower ratio of hydrogen gas to oxygen gas is determined by the control system to be injected into the air intake of the internal combustion engine if the instant engine load is lower than a predetermined engine load threshold than if the instant engine load is higher than the predetermined engine ...

OPTIMIZED FUEL MANAGEMENT SYSTEM FOR DIRECT INJECTION ETHANOL ENHANCEMENT OF GASOLINE ENGINES

Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline. 121-. (canceled)22. A turbocharged spark ignition engine , comprising:a first fueling system configured to directly inject fuel into at least one cylinder of the turbocharged spark ignition engine; anda second fueling system configured to use port fuel injection to provide fuel to the at least one cylinder,wherein the first fueling system is configured to be used across a manifold pressure range of the engine such that a fraction of total fuel introduced into the at least one cylinder provided by the first fueling system increases with increasing manifold pressure,wherein the first fueling system is configured to initiate fueling when torque from the engine exceeds a designated value,wherein the first fueling system is configured to initiate fueling in response to a signal from a knock sensor, andwherein the first fueling system uses a mixture of gasoline and ethanol.23. The turbocharged spark ignition engine of claim 22 , wherein both the first and second fueling systems are configured to be used at a maximum manifold pressure.24. The turbocharged spark ignition engine of or claim 22 , wherein the designated value is dependent on a speed of the engine.25. The turbocharged spark ignition engine of claim 22 , wherein both the first and second fueling systems are configured to be used for fueling when maximum knock suppression is desired.26. The turbocharged spark ignition engine of claim 22 , wherein the second fueling system is configured to increase ...

DRIVE SYSTEM AND METHOD FOR OPERATING A DRIVE SYSTEM

Various implementations include drive systems and related methods of operation. In one implementation, a drive system includes: a combustion engine, where the combustion engine includes a combustion chamber with injectors for injecting a fossil fuel into the combustion chamber, a supply line for delivering a gas mixture to the combustion chamber, an electrolysis chamber for producing hydrogen gas and oxygen gas, and a vacuum pump for sucking the hydrogen gas and the oxygen gas from the electrolysis chamber, a gasification tank with volatile organic compounds received therein, and an air compressor for pumping air into the gasification tank, wherein the gas mixture comprises gasified organic compounds from the gasification tank and at least a part of the hydrogen gas and the oxygen gas. 1. A drive system comprising:a combustion engine,wherein the combustion engine comprises a combustion chamber with injectors for injecting a fossil fuel into the combustion chamber,a supply line for delivering a gas mixture to the combustion chamber,an electrolysis chamber for producing hydrogen gas and oxygen gas, and a vacuum pump for sucking the hydrogen gas and the oxygen gas from the electrolysis chamber,a gasification tank with volatile organic compounds received therein, andan air compressor for pumping air into the gasification tank, wherein the gas mixture comprises gasified organic compounds from the gasification tank and at least a part of the hydrogen gas and the oxygen gas.2. The drive system as defined in claim 1 , wherein: the vacuum pump and the gasification tank are arranged in such a way that the hydrogen gas and the oxygen gas can be conveyed at least in part by the vacuum pump from the electrolysis chamber into the gasification tank in order to produce the gas mixture.3. The drive system as defined in claim 1 , wherein the electrolysis chamber and a line system from the electrolysis chamber to the gasification tank are formed such that hydrogen gas and oxygen gas ...

HYDRAULICALLY ACTUATED GASEOUS FUEL INJECTOR

Hydraulically actuated gaseous fuel injectors required a relatively small pressure bias between hydraulic fluid and gaseous fuel to be able to open and to reduce hydraulic fluid contamination of the gaseous fuel. An improved hydraulically actuated gaseous fuel injector includes an injection valve in fluid communication with a gaseous fuel inlet and includes a valve member reciprocatable within a fuel injector body between a closed position and an open position. There is a lift chamber in fluid communication with a hydraulic fluid inlet such that hydraulic fluid pressure in the lift chamber contributes to an opening force applied to the valve member. A control chamber is in fluid communication with the hydraulic fluid inlet such that hydraulic fluid pressure in the control chamber contributes to a closing force applied to the valve member. A control valve is operable to reduce hydraulic fluid pressure in the control chamber such that the opening force is greater than the closing force and the valve member moves to the open position. 1. A hydraulically actuated gaseous fuel injector for an internal combustion engine comprising:a gaseous fuel inlet;an injection valve in fluid communication with the gaseous fuel inlet and comprising a valve member reciprocatable within a fuel injector body between a closed position to block gaseous fuel flow and an open position to allow gaseous fuel flow;a hydraulic fluid inlet;a lift chamber in fluid communication with the hydraulic fluid inlet whereby hydraulic fluid pressure in the lift chamber contributes to an opening force applied to the valve member;a control chamber in one of selective fluid communication and restrictive fluid communication with the hydraulic fluid inlet whereby hydraulic fluid pressure in the control chamber contributes to a closing force applied to the valve member;a hydraulic fluid outlet; anda control valve operable between a blocking position to fluidly isolate the control chamber from the hydraulic fluid ...

OFF-BOARD FUEL REGULATOR FOR GENERATOR ENGINE

A generator and off-board fuel delivery system is disclosed. The generator is configured to operate on one or more fuels, including on a gaseous fuel supplied from a pressurized fuel source through a gaseous fuel line. A fuel regulator system is located off board the generator and is configured to regulate the gaseous fuel supplied from the pressurized fuel source in a first stage, with the gaseous fuel regulated down to a reduced pressure in the first stage. A second stage of the fuel regulator system regulates the reduced pressure gaseous fuel, with the reduced pressure gaseous fuel from the first stage regulated down to a desired pressure in the second stage for delivery through the gaseous fuel line to operate the generator. 1. A generator and fuel delivery system comprising:a generator free of any pressure regulator and configured to operate on a gaseous fuel supplied from a pressurized fuel source through a gaseous fuel line; regulate the gaseous fuel supplied from the pressurized fuel source in the first stage, the gaseous fuel regulated down to a reduced pressure in the first stage; and', 'regulate the reduced pressure gaseous fuel in the second stage, the reduced pressure gaseous fuel from the first stage regulated down to a desired pressure in the second stage for delivery through the gaseous fuel line to operate the generator., 'a fuel regulator system located off-board the generator and comprising a first stage and a second stage, the fuel regulator system configured to2. The generator and fuel delivery system of wherein the first and second stages comprise a dual stage regulator configured to regulate the gaseous fuel supplied from the pressurized fuel source and regulate the reduced pressure gaseous fuel.3. The generator and fuel delivery system of wherein the dual stage regulator is mounted directly onto the pressurized fuel source claim 2 , off-board from the generator.4. The generator and fuel delivery system of wherein the generator comprises a ...

DUAL FUEL SELECTOR SWITCH

A fuel selector for use with a dual fuel generator includes a selector plate, a first fuel valve assembly positioned adjacent the selector plate and actuatable between an ON position and an OFF position to selectively control a first fuel flow to an engine of the dual fuel generator, and a second fuel valve assembly positioned adjacent the selector plate and actuatable between an ON position and an OFF position to selectively control a second fuel flow to the engine of the dual fuel generator. A selector switch coupled to the selector plate is linearly translatable from a first position to a second position, so as to enable positioning of only one of the first fuel valve assembly and the second fuel valve assembly in the ON position at a given time, such that the first and second fuel valve assemblies cannot be in the ON position concurrently. 1. A fuel selector for use with a dual fuel generator , the fuel selector comprising:a valve assembly fluidly connected to each of a first fuel source and a second fuel source, the valve assembly being operable to selectively control a first fuel flow and a second fuel flow from the first fuel source and the second fuel source, respectively, to an engine of the dual fuel generator; anda selector switch positioned on the valve assembly to allow a user to manually select one of the first fuel flow and the second fuel flow; two fuel inputs, with a first fuel input connected to the first fuel source and a second fuel input connected to the second fuel source; and', 'two fuel outputs for selectively supplying fuel to the engine from the first fuel source or the second fuel source., 'wherein the valve assembly comprises2. The fuel selector of wherein the two fuel outputs selectively supply fuel to the engine from only one of the first fuel source or the second fuel source claim 1 , responsive to selection of the first fuel flow or the second fuel flow via the selector switch claim 1 , and a corresponding operation of the valve ...

MULTI-FUEL ENGINE SYSTEM

Various methods and systems are provided for an engine capable of receiving liquid and gaseous fuel. In one example, cylinder misfire may be identified based on a misfire monitor. The misfire monitor may detect misfire based on signals from a crankshaft sensor. 110.-. (canceled)11. A system , comprising:an engine having a plurality of cylinders, the engine configured to operate with at least a first fuel and a second fuel;a plurality of fuel injectors to inject the first fuel to the plurality of cylinders; and when operating under a tuning mode, operate the engine with both the first fuel and the second fuel and determine a minimum open duration for each of the plurality of injectors that sustains combustion; and', 'when operating under a second fuel mode, open each injector at its determined minimum open duration to initiate combustion,, 'a controller configured towhere the minimum open duration for each of the plurality of injectors is determined based on a misfire monitor that determines cylinder misfire based on signals from a crankshaft speed sensor.12. The system of claim 11 , wherein the first fuel is liquid fuel and the second fuel is gaseous fuel claim 11 , and where in the controller is configured to supply a gaseous fuel-air mixture to each cylinder during the second fuel mode.13. The system of claim 12 , wherein the tuning mode is performed at a given engine speed and/or load claim 12 , and wherein the second fuel mode comprises subsequent engine operation at the given engine speed and/or load.14. The system of claim 11 , wherein each respective minimum open duration comprises the respective minimum open duration that does not cause cylinder misfire claim 11 , and wherein the controller is configured to determine cylinder misfire with the misfire monitor by determining half-order torsional oscillation of a crankshaft of the engine based on the signals from the crankshaft speed sensor.15. The system of claim 11 , wherein a first injector of the plurality ...

COMPACT GASIFIER-GENSET ARCHITECTURE

A compact biomass gasification-based power generation system that converts carbonaceous material into electrical power, including an enclosure that encases: a gasifier including a pyrolysis module coaxially arranged above a reactor module, a generator including an engine and an alternator, and a hopper. The generator system additionally includes a first heat exchanger fluidly connected to an outlet of the reactor module and thermally connected to the drying module, a second heat exchanger fluidly connected to an outlet of the engine and thermally connected to the pyrolysis module, and a third heat exchanger fluidly connected between the outlet of the reactor module and the first heat exchanger, the third heat exchanger thermally connected to an air inlet of the reactor module. The system can additionally include a central wiring conduit electrically connected to the pyrolysis module, reactor module, and engine, and a control panel connected to the conduit that enables single-side operation. 1an open-air hopper;an airlock connected to an outlet of the hopper;a drying module connected to the airlock, the airlock configured to form a substantially fluid impermeable seal with the drying module;a gasifier comprising: a pyrolysis module and a reactor module, the pyrolysis module connected to the drying module and to the reactor module;an engine; and a first heat exchanger fluidly connected to an outlet of the reactor module and thermally connected to the drying module;', 'a second heat exchanger fluidly connected to an outlet of the engine and thermally connected to the pyrolysis module; and', 'a third heat exchanger fluidly connected between the outlet of the reactor module and the first heat exchanger, the third heat exchanger thermally connected to an air inlet of the reactor module., 'a heat exchange module comprising. A gasification based power generation system that converts carbonaceous material into electrical power, comprising: This application is a continuation ...

METHOD AND SYSTEM FOR IMPROVING FUEL ECONOMY AND REDUCING EMISSIONS OF INTERNAL COMBUSTION ENGINES

A method and system for improving the fuel economy and lowering the emissions of internal combustion engines by injecting predetermined amounts and ratios of on-board or locally generated hydrogen and oxygen to the engine's air intake and varying the gas addition volume and hydrogen/oxygen ratio as a function of the operating conditions, e.g., in line with the instant engine load. 1. A system for improving fuel economy of an internal combustion engine which combusts a carbon based fuel with air supplied by an air intake , the system comprising:a first source for supplying hydrogen gas;a second source for supplying oxygen gas, the second source being separate from the first source;a third source for supplying the carbon based fuel;a control logic subsystem adapted to continuously monitor one or more engine operating parameters to determine, on an ongoing basis and in real-time, a pre-determined ratio of hydrogen gas to oxygen gas and a pre-determined total volume thereof to be injected into the air intake of the internal combustion engine to enhance the fuel economy thereof; anda metering subsystem coupled to the first source, the second source and the air intake of the internal combustion engine, the metering subsystem configured to independently select pre-determined volumes of hydrogen gas and oxygen gas in the pre-determined ratio from corresponding first and second sources, and provide the selected hydrogen and oxygen gases to the air intake of said internal combustion engine for combustion with the carbon based fuel such that a lag time between the determination of the pre-determined ratio and volume of hydrogen gas and oxygen gas by the control logic subsystem and provision of the selected hydrogen and oxygen gases by the metering subsystem to the air intake is maintained below a predetermined response threshold.2. The system of claim 1 , wherein the control logic subsystem is configured to use regression analysis of at least one independent variable claim 1 , ...

OPTIMIZED FUEL MANAGEMENT SYSTEM FOR DIRECT INJECTION ETHANOL ENHANCEMENT OF GASOLINE ENGINES

Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline. 121-. (canceled)22. A fuel management system for a spark ignition engine , comprising:a first fueling system that uses direct injection;a second fueling system that uses port fuel injection; anda three-way catalyst configured to reduce emissions from the spark ignition engine,wherein the fuel management system is configured to provide fueling in a first torque range, the first torque range being a first range of torque values at which both the first fueling system and the second fueling system are operable throughout the first range of torque values,wherein the fuel management system is further configured such that a fraction of fueling provided by the first fueling system is higher at a highest value of torque in the first torque range than in a lowest value of torque in the first torque range,wherein the fuel management system is further configured to provide fueling in a second torque range, the second torque range being a second range of torque values at which the second fueling system is operable throughout the second range of torque values and the first fueling system is not operable throughout the second range of torque values,wherein the fuel management system is further configured such that when the system provides fueling at a torque value that exceeds the second range of torque values, the spark ignition engine is operated in the first torque range,wherein the fuel management system is further configured to increase the fraction of fueling provided ...

Port Injection System For Reduction Of Particulates From Turbocharged Direct Injection Gasoline Engines

The present invention describes a fuel-management system for minimizing particulate emissions in turbocharged direct injection gasoline engines. The system optimizes the use of port fuel injection (PFI) in combination with direct injection (DI), particularly in cold start and other transient conditions. In the present invention, the use of these control systems together with other control systems for increasing the effectiveness of port fuel injector use and for reducing particulate emissions from turbocharged direct injection engines is described. Particular attention is given to reducing particulate emissions that occur during cold start and transient conditions since a substantial fraction of the particulate emissions during a drive cycle occur at these times. Further optimization of the fuel management system for these conditions is important for reducing drive cycle emissions. 1. A spark ignition engine where at least one cylinder is fueled with gasoline where both closed valve and open-valve port fuel injection are used to introduce fuel into the cylinder;and where the open-valve port fuel injection is used to provide greater knock resistance than closed-valve port fuel injection;and where the use of the open-valve port fuel injection reduces particulate emissions relative to the amount of particulate emissions that would occur if open-valve port fuel injection were not used.2. The spark ignition engine of where direct injection is also used to introduce fuel into the engine.3. A spark ignition engine where port fuel injection is employed so as to introduce fuel into at least one engine cylinder;and where exhaust valve position is adjusted so as to direct high pressure, hot gas into the manifold during the next cycle;and where the adjustment is such that the exhaust valve is controlled so as not be open or not to be completely open.4. The spark ignition engine of where the adjustment in valve position helps to vaporize fuel that is introduced into the cylinder ...

ALTERNATE FUELING SYSTEMS AND ASSOCIATED METHODS

An alternative fueling system configured to consume alternative fuels by renewable identification number (RIN) assignment to enforce neat consumption; or moreover and more specifically, to utilize that RIN assignment whenever neat consumption is possible, thereby lessening usage constraints upon the remaining stock(s) of renewable fuel as an example, and/or to provide purging of the alternative fuel from the engine on shutdown. 1. A fuel control system , comprising: control a source valve to source supply fuel from a primary fuel tank to an internal combustion engine of a vehicle and control a bypass valve to direct unconsumed excess fuel from the engine to the primary fuel tank; and', 'control the source valve to source supply fuel from a flow cell to the engine and control the bypass valve to direct unconsumed excess fuel from the engine to the flow cell., 'an electronic controller configured to2. The fuel control system of claim 1 , wherein the electronic controller is further configured to control the source valve to source supply fuel from the primary fuel tank to the engine and control the bypass valve to direct unconsumed excess fuel from the engine to the flow cell.3. The fuel control system of claim 1 , wherein:the source valve is in fluid communication with the flow cell, the primary fuel tank, and the engine, the source valve configured to selectively source fluid to the engine from one of (1) the primary fuel tank and (2) the flow cell; andthe bypass valve is in fluid communication with the flow cell, the primary fuel tank, and the engine, the bypass valve configured to selectively direct fluid from the engine to one of (1) the primary fuel tank and (2) the flow cell.4. The fuel control system of claim 1 , wherein:the electronic controller is further configured to control delivery of a primary fuel and an alternate fuel to a flow cell, and the primary fuel comprises diesel and the alternate fuel comprises biodiesel.5. The fuel control system of claim 1 , ...

METHOD AND SYSTEM FOR DETERMINING KNOCK CONTROL FLUID COMPOSITION

Methods and systems are provided for accurately determining the composition of a knock control fluid using sensors already present in the engine system. An intake or an exhaust oxygen sensor is used to estimate the water and the alcohol content of a knock control fluid that is direct injected into an engine cylinder responsive to an indication of abnormal combustion. A change in the pumping current of the oxygen sensor due to the water content of the knock control fluid is distinguished from a change in the pumping current of the oxygen sensor due to the alcohol content of the knock control fluid. 19-. (canceled)10. A method for an engine , comprising:during a first condition, injecting a water-alcohol blend into an engine cylinder, and learning an alcohol composition of the water-alcohol blend based on a change in pumping current of an intake oxygen sensor; andduring a second condition, injecting a gasoline-alcohol blend into the engine cylinder, and learning the alcohol composition of the gasoline-alcohol blend based on the change in pumping current of the intake oxygen sensor.11. The method of claim 10 , wherein the first condition includes engine operation following refilling of the water-alcohol blend in a washer fluid tank claim 10 , and wherein the second condition includes engine operation following refilling of the gasoline-alcohol blend in a fuel tank.12. The method of claim 10 , wherein during the second condition claim 10 , a reference voltage of the intake oxygen sensor is modulated between a first and a second voltage claim 10 , and the change in pumping current is responsive to the modulation claim 10 , and wherein during the second condition claim 10 , only the first reference voltage is applied to the intake oxygen sensor claim 10 , and the change in pumping current is responsive to the applying.13. The method of claim 12 , wherein during the first condition claim 12 , the alcohol composition of the water-alcohol blend is further based on an ...

FUEL INJECTOR

A fuel injector for an internal combustion engine is disclosed. The fuel injector is installable in a cylinder head bore of a cylinder head of the engine and has a body region arranged to be received within the cylinder head bore, and a head region arranged to extend outside the cylinder head bore to protrude from the cylinder head when the injector is installed in the cylinder head bore. The injector includes a first valve needle arranged to control the injection of a gaseous fuel from a first outlet, a second valve needle arranged to control the injection of a liquid fuel from a second outlet, a gaseous fuel inlet for admitting the gaseous fuel to the injector, and a liquid fuel inlet port for admitting the liquid fuel to the injector. The gaseous fuel inlet is disposed in the body region of the injector, and the liquid fuel inlet port is disposed in the head region of the injector. The injector can also include an internal accumulator volume so that an external fuel rail is not necessary. 1. A fuel injector for an internal combustion engine , the fuel injector comprising:a body region arranged to be received within a bore of a cylinder head of an engine;a head region arranged to extend outside the bore of the cylinder head and protrude from the cylinder head when the fuel injector is installed in the bore of the cylinder head;a first valve needle arranged to control injection of a gaseous fuel from a first outlet;a second valve needle slidably received within the first valve needle and arranged to control injection of a liquid fuel from a second outlet;a gaseous fuel inlet disposed in the body region of the fuel injector for admitting the gaseous fuel to the fuel injector; anda liquid fuel inlet port disposed in the head region of the fuel injector for admitting the liquid fuel to the fuel injector.2. The fuel injector according to claim 1 , wherein the fuel injector comprises first and second control valves for controlling movement of the first and second valve ...

DUAL FUEL REFUELING

Embodiments are disclosed that relate to refueling a dual fuel internal combustion engine. In one example, a method comprises supplying a liquid fuel to a fuel tank configured to store both the liquid fuel and a gaseous fuel, if a pressure in the fuel tank is less than a threshold pressure. 112-. (canceled)13. A system for supplying a liquid fuel and a gaseous fuel to an internal combustion engine , the system comprising:one or more cylinders each associated with one or more fuel injectors;a fuel tank storing both the liquid fuel and the gaseous fuel, the fuel tank fluidly coupled to the one or more fuel injectors; and allow the liquid fuel to be supplied to the fuel tank only if a pressure in the fuel tank is less than a threshold pressure; and', 'disallow the liquid fuel to be supplied to the fuel tank if the pressure in the fuel tank is greater than the threshold pressure., 'a controller including instructions executable to14. The system of claim 13 , wherein allowing the liquid fuel to be supplied to the fuel tank includes pumping the liquid fuel from a surge tank to the fuel tank via a fuel pump claim 13 , the surge tank configured to store the liquid fuel and fluidly coupled to the fuel tank upstream of the fuel tank.15. The system of claim 14 , wherein the instructions are further executable to run the fuel pump after a threshold duration to reduce evaporative emissions from the surge tank.16. The system of claim 13 , wherein supply of the liquid fuel to the fuel tank is disallowed if a liquid level in the fuel tank is greater than a threshold level.17. The system of claim 13 , wherein the liquid fuel is received at a low pressure refueling port upstream of the fuel tank claim 13 , the gaseous fuel is received at a high pressure refueling port upstream of the fuel tank claim 13 , and the gaseous fuel is at least partially solubilized in the liquid fuel in the fuel tank.18. The system of claim 13 , wherein the instructions are further executable to ...

Liquid and Gaseous Multi-Fuel Compression Ignition Engines

Methods of operation of liquid and gaseous multi-fuel compression ignition engines that may be operated on a gaseous fuel or a liquid fuel, or a combination of both a gaseous fuel and a liquid fuel at the same time and in some embodiments, in the same combustion event. Various embodiments are disclosed. 1. A method of operating an engine comprising:providing a camless, electronically controlled compression ignition engine having at least one combustion cylinder having a liquid fuel injector and a gaseous fuel injector for providing a gaseous fuel and liquid fuel to the combustion cylinder;the compression ignition engine having a sufficient effective compression ratio to self ignite the gaseous fuel and the liquid fuel;whereby the compression ignition engine can be operated on the gaseous fuel, the liquid fuel, and a combination of both the gaseous fuel and the liquid fuel in each combustion event.2. The method of wherein a compression cylinder has the sufficient compression ratio when augmented by a turbocharger.3. The method of wherein compression ignition is initiated by injection of the gaseous fuel.4. The method of wherein compression ignition is initiated by injection of the liquid fuel.5. The method of wherein compression ignition is initiated by simultaneous injection of both the gaseous fuel and the liquid fuel.6. The method of wherein the gaseous fuel is compressed natural gas.7. The method of wherein the liquid fuel is diesel fuel.8. The method of wherein the liquid fuel is diesel fuel and the gaseous fuel is compressed natural gas. This application is a divisional of U.S. patent application Ser. No. 15/284,292 filed Oct. 3, 2016, which is a continuation of International Application No. PCT/US2015/024378 filed Apr. 3, 2015 which claims the benefit of U.S. Provisional Patent Application No. 61/974,937 filed Apr. 3, 2014.The present invention relates to the field of compression ignition internal combustion engines.Compression ignition engines are well known ...

DIESEL ENGINE COMBUSTION AND TEMPERATURE MANAGEMENT SYSTEM

A diesel engine combustion and temperature management system includes injection nozzles for injecting plural fuel additives into an intake of the diesel engine and a controller controlling the amount of each fuel additive injected as a function of engine load, engine speed, exhaust temperature, and/or other parameters. 1. A system comprising:an additive injection module configured for installation in a combustion air intake system of a diesel engine, the additive injection module defining an interior region;a first additive subsystem including a first additive storage tank, a first additive conduit coupled to said first additive storage tank in fluid communication, and a first additive injector coupled to said first additive conduit in fluid communication, the first additive injector in fluid communication with the interior region of the additive injection module;a second additive subsystem including a second additive storage tank, a second additive conduit coupled to said second additive storage tank in fluid communication, and a second additive injector coupled to said second additive conduit in fluid communication, the second additive injector in fluid communication with the interior region of the additive injection module:a third additive subsystem including a third additive storage tank, a third additive conduit coupled to said third additive storage tank in fluid communication, and a third additive injector coupled to said third additive conduit in fluid communication, the third additive injector in fluid communication with the interior region of the additive injection module;each of the additive injectors comprising an injection valve that may be selectively opened and closed to control flow of the respective additive to the interior region of the additive injection module.2. The system of wherein the first additive subsystem is an ether subsystem claim 1 , the second additive subsystem is a methanol subsystem claim 1 , and the third additive subsystem is an ...

GASEOUS FUEL INJECTOR ACTIVATION

A method for starting an engine is provided. The method comprises in response to an engine start request, cycling a gaseous fuel injector prior to activating a starter motor. In this way, delayed engine starts using gaseous fuel may be mitigated. 1. A method , comprising:in response to an engine start request, cycling a gaseous fuel injector prior to activating a starter motor.2. The method of claim 1 , wherein cycling the gaseous fuel injector comprises:applying voltage to the gaseous fuel injector; andafter a threshold drop in fuel rail pressure is detected, not applying voltage to the gaseous fuel injector.3. The method of claim 2 , wherein cycling the gaseous fuel injector prior to activating the starter motor comprises supplying a first amount of voltage to the gaseous fuel injector.4. The method of claim 3 , further comprising following activation of the starter motor claim 3 , supplying a second amount of voltage to the gaseous fuel injector claim 3 , the second amount of voltage less than the first amount of voltage.5. The method of claim 1 , wherein cycling the gaseous fuel injector prior to activating the starter motor comprises cycling the gaseous fuel injector three times prior to activating the starter motor.6. A method for starting an engine claim 1 , comprising:activating a gaseous fuel injector before an engine start request; anddeactivating the activated gaseous fuel injector in response to a decrease in gaseous fuel pressure.7. The method of claim 6 , wherein activating the gaseous fuel injector before the engine start request comprises activating the gaseous fuel injector in response to a door of a vehicle in which the engine is installed being opened.8. The method of claim 6 , wherein the gaseous fuel injector is a first gaseous fuel injector claim 6 , and further comprising activating a second gaseous fuel injector before the engine start request.9. The method of claim 8 , wherein activating the second gaseous fuel injector comprises activating ...

ENGINE DEVICE

An engine device including an intake manifold configured to supply air into a cylinder; an exhaust manifold configured to output exhaust gas from the cylinder; a gas injector which mixes a gaseous fuel with the air supplied from the intake manifold; and a main fuel injection valve configured to inject a liquid fuel into the cylinder for combustion. At the time of switching from a gas mode in which the gaseous fuel is supplied into the cylinder to a diesel mode in which the liquid fuel is supplied into the cylinder, a supply-start timing of the liquid fuel is delayed relative to a supply-stop timing of the gaseous fuel. 1. A ship comprising:an engine; and based on the ship being outside a reduced emissions area, perform an engine switching operation to switch operation of the engine from a gas mode to a diesel mode; and', 'based on the ship being within the reduced emissions area, prohibit the engine switching operation., 'an engine control unit (ECU) configured to2. The ship of claim 1 , wherein the ECU is further configured to:determine a first location of the ship that is within the reduced emissions area; anddetermine a second location of the ship that is outside the reduced emissions area.3. The ship of claim 2 , wherein the ECU is further configured to:determine the reduced emissions area based on restricted sea area information map data;compare the first location to the reduced emissions area to determine whether the first location is within the reduced emissions area; andcompare the second location to the reduced emissions area to determine whether the second location is within the reduced emissions area.4. The ship of claim 3 , wherein the ECU is further configured to: the gas mode in which a gaseous fuel is supplied into a cylinder of the engine; and', 'the diesel mode in which a liquid fuel is supplied into the cylinder; and, 'determine which mode of a plurality of modes the engine is configured in, the plurality of modes includingbased on the engine being ...

Fuel selection method and related system for a mobile asset

Embodiments of methods and systems related to operating a mobile asset are provided. In one example, a method for operating a mobile asset includes supplying an engine with a fuel controller a first amount of a first fuel and a second amount of a second fuel and combusting the first fuel and the second fuel at a fuel combustion ratio in at least one cylinder of the engine, the first amount and the second amount being selected based on route information for a route along which the mobile asset is operable to travel and a projected exhaustion of the first fuel that does not precede a projected exhaustion of the second fuel, wherein the mobile asset is unable to operate with the second fuel alone.

Engine

An engine operable in a premixed combustion system and a diffusion combustion system. The engine includes a main fuel injection valve, a pilot fuel injection valve, a liquid fuel tank, a main fuel supply path, a pilot fuel supply path, a pilot fuel filter, a pilot fuel high-pressure pump, a pilot fuel tank, and a pilot fuel supply pump. The pilot fuel tank stores pilot fuel sent from the pilot fuel high-pressure pump and not injected by the pilot fuel injection valve. This pilot fuel is sent to an automatic backwash filter and a pilot fuel filter while not passing through the liquid fuel tank.

Stoichiometric High-Temperature Direct-Injection Compression-Ignition Engine

A neat-fuel direct-injected compression ignition engine having a thermal barrier coated combustion chamber, an injection port injects fuel that satisfies a stoichiometric condition with respect to the intake air, a mechanical exhaust regenerator transfers energy from exhaust gas to intake compression stages, an exhaust Osensor inputs to a feedback control to deliver quantified fuel, a variable valve actuation (VVA) controls valve positions, an exhaust gas temperature sensor controls exhaust feedback by closing the exhaust valve early according to the VVA, or recirculated to the chamber with an exhaust-gas-recirculation (EGR), heat exchanger, and flow path connecting an air intake, a load command input, and a computer operates the EGR from sensors to input exhaust gas according exhaust temperature signals and changes VVA timing, the load control is by chamber exhaust gas, the computer operates a fuel injector to deliver fuel independent of exhaust gas by the Osignals. 1) A direct-injected compression ignition engine system , comprising:an engine combustion chamber having a direct injection port configured to receive a neat fuel, an intake port configured to receive intake air, and an exhaust port configured to allow exhaust gas to exit the engine combustion chamber;a thermal barrier coating disposed on a surface of the engine combustion chamber, the thermal barrier coating configured to retain heat within the engine combustion chamber; anda direct injection system configured to deliver to the combustion chamber via the direct injection port a stoichiometric ratio of the neat fuel to an amount of intake air, wherein a particulate matter emission level remains below about 0.01 g/hp-hr during operation of the direct-injected compression ignition engine system.2) The direct-injected compression ignition engine system of claim 1 , further comprising:an exhaust gas recirculation system fluidically coupled to the exhaust port and the intake port, the exhaust gas ...

Ultra-Compact System For Characterization Of Physical, Chemical And Ignition Properties Of Fuels

The present disclosure relates to a miniaturized fuel laboratory system that makes use of a housing, a processor housed within the housing, and a fuel inlet port supported from the housing for receiving a quantity of fuel to be used as a fuel test sample. The system may also have at least one fuel sensor housed in the housing in communication with the fuel inlet port for receiving the fuel test sample and carrying out combustion thereof. An electronic component may be housed in the housing, which enables communication with an external remote subsystem. A database may be incorporated which contains at least one of stored fuel characteristics or stored fuel analysis models, accessible by the processor. The processor may use fuel oxidation information generated by the fuel sensor, and at least one of the stored fuel characteristics or stored combustion models, to determine at least one fuel characteristic of the fuel test sample. 1. A miniaturized fuel laboratory system , the system comprising:a housing;a processor housed within the housing;a fuel inlet port supported from the housing for receiving a quantity of fuel to be used as a fuel test sample;at least one fuel sensor housed in the housing in communication with the fuel inlet port for receiving the fuel test sample, the fuel sensor operating to carry out combustion of the fuel test sample to generate information relating to fuel oxidation of the test sample, for subsequent use in predicting a performance of the quantity of fuel in an internal combustion engine;a communications component housed in the housing enabling communication with an external remote subsystem;a database containing at least one of stored fuel characteristics or stored fuel analysis models, accessible by the processor; andthe processor using the information relating to fuel oxidation together with the stored fuel characteristics or stored fuel analysis models, to help predict the performance of the quantity of fuel in the internal combustion ...

COMPACT GASIFIER-GENSET ARCHITECTURE

A compact biomass gasification-based power generation system that converts carbonaceous material into electrical power, including an enclosure that encases: a gasifier including a pyrolysis module coaxially arranged above a reactor module, a generator including an engine and an alternator, and a hopper. The generator system additionally includes a first heat exchanger fluidly connected to an outlet of the reactor module and thermally connected to the drying module, a second heat exchanger fluidly connected to an outlet of the engine and thermally connected to the pyrolysis module, and a third heat exchanger fluidly connected between the outlet of the reactor module and the first heat exchanger, the third heat exchanger thermally connected to an air inlet of the reactor module. The system can additionally include a central wiring conduit electrically connected to the pyrolysis module, reactor module, and engine, and a control panel connected to the conduit that enables single-side operation.

WELLHEAD GAS CONDITIONER METHODS AND USES THEREOF

The embodiments described herein are directed a device for conditioning gas comprising an inlet for receiving fuel. The device includes an injector for injecting an oxygen source into the fuel, a heating component for heating the fuel, a conditioner unit, and a cooling component. The device further comprises an outlet for feeding conditioned gas into an engine. The embodiments are also directed to a method for conditioning gas. 1. A device for conditioning gas , said device comprising:an inlet for receiving fuel comprising at least one high hydrocarbon;optionally, a split line to separate a first portion of fuel from a second portion of fuel;an injector for injecting an oxygen source into the first portion of fuel;a heating component to heat the first portion of fuel;a conditioner unit comprising at least one catalyst to oxidize said first portion of fuel into a conditioned gas;a cooling component for cooling the conditioned gas; andan outlet to feed the conditioned gas or a mixture of reformed gas and the second portion of fuel to an engine.2. The device according to claim 1 , wherein the injector is a venturi.3. The device according to claim 2 , wherein the oxygen source is a gaseous mixture.4. The device according to claim 1 , wherein the cooling component is a series of heat exchangers.5. The device according to claim 1 , wherein the cooling component comprises an air cooled heat exchanger.6. The device according to claim 1 , wherein the catalyst comprises aluminum claim 1 , lanthanum claim 1 , cerium claim 1 , rhodium claim 1 , and mixtures thereof.7. The device according to claim 6 , wherein the catalyst comprises:70% to 90% of alumina by weight relative to the total weight of the composition,2% to 3% of lanthanum by weight relative to the total weight of the composition,0.5% to 5% of cerium by weight relative to the total weight of the composition, and0.5% to 5% of rhodium by weight relative to the total weight of the composition.8. The device according to ...

Fuel interface modules and related systems and methods

Fuel interface modules that can be used in automotive vehicle fuel systems can include a body that defines a fuel channel and a plurality of ports through which fluid communication with the fuel channel can be established. Some modules include a check valve, a shutoff valve, and a coalescing filter assembly that are each coupled with a separate port. The fuel modules can be quickly installed and can eliminate many of the installing materials typically associated with automotive vehicle fuel systems.

Multiple element firing strategy for cryogenic pump

A pump has a plurality of pumping elements, each being independently responsive to an actuation signal from a controller. The controller is programmed to maintain a desired pressure at the pump discharge, monitor the fluid pressure at the pump discharge, compare the fluid pressure with the desired fluid pressure to determine a pressure error, provide commands to sequentially actuate the pumping elements when the pressure error is within a threshold range, and provide commands to actuate more than one of the plurality of pumping elements simultaneously, such that more than one pumped amounts of fluid are delivered simultaneously at the pump discharge, when the pressure error droops outside of the threshold range.

Fuel feed control apparatus and method of altered vehicle using both gasoline and lpg

가솔린 및 엘피지 겸용 개조 차량의 연료공급 제어장치 및 제어방법에 관한 것으로, 엔진에 가솔린 연료를 공급하는 가솔린 공급부, 엔진에 엘피지 연료를 공급하는 엘피지 공급부, 상기 가솔린 공급부 또는 엘피지 공급부로부터 공급되는 가솔린 연료 또는 엘피지 연료를 미리 설정된 고압으로 가압하는 고압펌프 및 상기 고압펌프에 공급되는 연료의 압력과 봄베 내부에 충진된 엘피지 연료의 압력에 기초해서 상기 봄베에 설치되는 엘피지 연료펌프의 구동을 제어하는 제어부를 포함하는 구성을 마련하여, 가솔린 직접분사 방식에서 가솔린과 엘피지 연료를 겸용하도록 개조된 차량에 엘피지 연료펌프의 구동을 제어하는 제어부를 마련해서 차량의 주행상태에 따라 엘피지 연료펌프의 구동을 제어할 수 있다는 효과가 얻어진다. The present invention relates to a fuel supply control device and a control method for a gasoline and an alpine modifying vehicle, and more particularly to a fuel supply control device and a control method of a gasoline and an alpine remodeled vehicle which are provided with a gasoline supply section for supplying gasoline fuel to an engine, an LPG supply section for supplying LPG to the engine, A high pressure pump that pressurizes the LPG fuel to a predetermined high pressure and a control unit that controls the driving of the LPG fuel pump installed in the cylinder on the basis of the pressure of the fuel supplied to the high pressure pump and the pressure of the LPG filled in the cylinder A control unit for controlling driving of the LPG fuel pump is provided in a vehicle modified to use gasoline and LPG in the gasoline direct injection system so that the driving of the LPG fuel pump can be controlled in accordance with the running state of the vehicle Effect is obtained.

Nonwoven abrasive articles and methods of making the same

Nonwoven abrasive articles comprise a nonwoven abrasive member having an overlayer composition comprising a fatty acid metal salt disposed thereon adjacent to a working surface. The nonwoven abrasive member comprises abrasive particles adhered to a fiber web by a binder. The abrasive particles may be exposed and/or the nonwoven abrasive member may have suitable frictional properties. Methods of making the same are also disclosed.

Production of renewable hydrocarbon compositions

Provided herein are processes and microorganisms which utilize both protein hydrolysates and carbohydrates from biomass feedstocks to produce renewable hydrocarbon compositions. Advantages of the disclosed methods may be recognized in fuel blends comprising such hydrocarbon compositions.

Production of renewable hydrocarbon compositions

Provided herein are processes and microorganisms which utilize both protein hydrolysates and carbohydrates from biomass feedstocks to produce renewable hydrocarbon compositions. Advantages of the disclosed methods may be recognized in fuel blends comprising such hydrocarbon compositions.

Low load operation system of dual fuel engine and low load operation using the same method

본 발명은 이원 연료 엔진의 저부하 운전 시스템 및 이를 이용한 저부하 운전 방법에 관한 것으로서, 보다 구체적으로는 이원 연료 엔진 또는 가스 엔진에서 무부하 또는 저부하 운전시 연료의 불완전 연소를 해소하여 에너지 효율을 향상시켜 안정적인 운전을 가능케 하는 이원 연료 엔진의 저부하 운전 시스템 및 이를 이용한 저부하 운전 방법에 관한 것이다. 이를 위해, 가스엔진 또는 이원 연료 엔진의 저부하 운전을 위한 시스템에 있어서, 각 실린더마다 설치되고, 실린더에서 배출되는 배기가스의 온도를 측정하기 위한 배기 온도센서; 각 실린더마다 설치되고, 디젤연료를 미세하게 제어하여 분사하기 위한 파일럿 연료분사장치; 및 상기 배기 온도센서에서 측정된 온도 값을 전달받고, 전달받은 온도 값을 통해 상기 파일럿 연료분사장치가 각 실린더에 분사하는 분사설정을 계산 후 결정하고 제어하기 위한 제어부;를 포함하는 이원 연료 엔진의 저부하 운전 시스템 및 이를 이용한 저부하 운전 방법을 제공한다. The present invention relates to a low-load operation system of a dual-fuel engine and a low-load operation method using the same, and more specifically, to improve energy efficiency by eliminating incomplete combustion of fuel when no-load or low-load operation in a dual-fuel engine or a gas engine It relates to a low-load driving system of a binary fuel engine to enable stable operation, and a low-load driving method using the same. To this end, a system for low-load operation of a gas engine or a binary fuel engine, comprising: an exhaust temperature sensor installed in each cylinder and measuring a temperature of exhaust gas discharged from the cylinder; A pilot fuel injection device installed for each cylinder and finely controlling and injecting diesel fuel; And a control unit for receiving a temperature value measured by the exhaust temperature sensor and calculating and determining and controlling an injection setting that the pilot fuel injection device injects to each cylinder through the received temperature value. Provided is a low load operation system and a low load operation method using the same.

Control device for uniformly distributing gases and/or liquids between at least two containers

A control device is provided for uniformly distributing gases and/or liquids between at least two containers with a different internal pressure, such as, fuel containers, crank casings and the like, in particular in internal combustion engines with more than one cylinder bank and a separate intake air feed per bank. The gas feed line assemblies ( 1 ) leading to the cylinder banks are connected to a chamber of a double-acting pressure box ( 4 ) and the gas flow in the gas feed line assembly ( 1 ) with the greater underpressure is reduced using a diaphragm ( 7 ) that is deflected as a result of a pressure difference in the gas feed line assemblies ( 1 ) by means of at least one throttle valve ( 10, 11 ) that can be activated via at least one sliding element ( 8, 9 ).

A four-stroke internal combustion engine and a piston therefor

본 발명은 적어도 하나의 실린더 헤드 (112), 적어도 하나의 실린더 (114) 및 각각의 실린더 (114) 의 피스톤 (116) 을 갖는 대형 4행정 내연 엔진에 관한 것으로서; 상기 적어도 하나의 실린더 헤드 (112) 는 적어도 하나의 흡기 밸브 (120) 및 적어도 하나의 배기 밸브 (124) 를 갖고; 상기 피스톤 (116) 은 나사들 (144) 에 의해서 서로 고정된 피스톤 크라운 (140) 및 피스톤 스커트 (142) 를 갖고; 상기 피스톤 크라운 (140) 은 상기 실린더 헤드 (112) 와 대면하는 상부 표면 (146) 을 갖고; 상기 상부 표면 (146) 은 회전 대칭이고 중심 영역 (146'), 함몰된 보울 영역 (146'') 및 에지 영역 (146''') 을 갖고; 상기 중심 영역은 상기 에지 영역 (146''') 위로 연장되는 상승된 중심 영역 (146') 이다.

Device which reduces a sensing error about a venting gas of a dual fuel engine

본 발명은 이중연료엔진 배출가스 감지오류 저감장치에 관한 것으로, 본 발명에서는 배출가스 감지센서의 하단에 상응하는 잔류가스 배출라인 측으로 배출가스의 농도를 희석하기 위한 희석용 가스(예컨대, 질소가스, 공기 등)를 공급할 수 있는 구성요소들을 추가 배치하고, 이를 통해, 배출가스 감지센서 측에서, 잔류가스 배출라인을 통해 흐르는 배출가스의 유속이 느린 상황 하에서도, 희석용 가스와의 혼합을 통한 해당 배출가스의 농도 저하를 기반으로 하여, 불필요한 경고신호를 발생시키지 않도록 함으로써, 운영주체(예컨대, 액화천연가스 운반선 운영주체, 이중연료엔진 운영주체 등) 측에서, 배출가스 감지센서의 오버 센싱(Over sensing) 문제를 회피하면서, 크랭크케이스 내부에 일련의 퍼지 가스를 불필요하게 공급하거나, 가스 트리얼을 무작정 중단시키는 등의 문제점까지도 손쉽게 회피할 수 있도록 가이드 할 수 있다. The present invention relates to a device for reducing a detection error of a double fuel engine exhaust gas, and in the present invention, a dilution gas (for example, nitrogen gas, for diluting the concentration of the exhaust gas toward the residual gas emission line corresponding to the lower end of the emission sensor) The components that can supply air, etc.) are additionally arranged, and through this, through the mixing with dilution gas, even when the flow rate of the exhaust gas flowing through the residual gas exhaust line is slow at the exhaust gas sensor. Based on the decrease in the concentration of the exhaust gas, by not generating unnecessary warning signals, the operating subject (e.g., the operator of the liquefied natural gas carrier, the operator of the dual fuel engine, etc.), over-sensing the exhaust gas sensor (Over While avoiding the sensing problem, it is unnecessary to supply a series of purge gas inside the crankcase or to eliminate the gas trial. Even issues such as information that can be interrupted so that the guide can be easily avoided.

Hybrid fuel and method of making the same

A hybrid fuel and methods of making the same are disclosed. A process for making a hybrid fuel includes the steps of combining a biofuel emulsion blend and a liquid fuel product to form a hybrid fuel. Optionally, the hybrid fuel can be combined with water in a water-in-oil process and include oxygenate additives and additive packages. A hybrid fuel includes blends of biofuel emulsions and liquid fuel products, including light gas diesel. Optionally, the hybrid fuel can include water, oxygenate additives, and other additive packages.

How piston engines work and piston engines

본 발명은, 4 행정 이중-연료 또는 다중-연료 피스톤 엔진 (1) 의 작동 방법에 관한 것으로, 상기 방법은, 가스 유입 밸브 (3) 를 개방하고 기체 연료를 흡기 덕트 (4) 에 그리고 추가로 엔진 (1) 의 실린더 (2) 에 도입하기 위해 상기 가스 유입 밸브 (3) 에 제 1 제어 신호를 전송하는 단계 (100); 상기 기체 연료와 흡기 공기의 혼합물을 점화시키도록 파일럿 연료 분사기 (5) 를 개방하고 액체 파일럿 연료를 상기 실린더 (2) 에 도입하기 위해 상기 파일럿 연료 분사기 (5) 에 제 2 제어 신호를 전송하는 단계 (101); 연료의 추정된 점화 후 및 배기 밸브들의 개방 전인 미리 정해진 크랭크 각도에서 연소 행정 동안에 상기 실린더 (2) 내의 압력을 측정하는 단계 (102); 측정된 상기 압력을 미리 정해진 한계 값과 비교하는 단계 (103); 및 측정된 상기 압력이 상기 미리 정해진 한계 값을 초과하는 경우, 상기 제 1 제어 신호 및 상기 제 2 제어 신호를 불능화시키는 단계 (104) 를 포함한다. The present invention relates to a method of operating a four-stroke double-fuel or multi-fuel piston engine (1), which opens the gas inlet valve (3) and feeds gaseous fuel into the intake duct (4). Transmitting (100) a first control signal to said gas inlet valve (3) for introduction into a cylinder (2) of an engine (1); Opening a pilot fuel injector 5 to ignite the mixture of gaseous fuel and intake air and transmitting a second control signal to the pilot fuel injector 5 for introducing liquid pilot fuel into the cylinder 2; 101; Measuring (102) the pressure in the cylinder (2) during the combustion stroke at a predetermined crank angle after the estimated ignition of fuel and before opening of the exhaust valves; Comparing (103) the measured pressure with a predetermined limit value; And disabling the first control signal and the second control signal if the pressure measured exceeds the predetermined threshold value (104).

Gas fuel supply system and method for detecting abnormality of gas fuel supply system

기체연료 공급시스템(15)은 엔진의 연소실(7)에 기체연료를 공급한다. 기체연료 공급시스템은 연소실에 기체연료를 분사하는 분사밸브(8)와, 분사밸브에 공급되는 기체연료가 흐르는 공급유로와, 공급유로를 개폐 가능한 게이트밸브와, 분사밸브와 게이트밸브 사이의 공급유로의 압력을 검출하는 압력센서와, 분사밸브 및 게이트밸브를 제어하는 제어장치를 구비한다. 압력센서의 검출결과와 엔진의 크랭크 축의 크랭크 각도를 검출하는 검출장치의 검출결과에 의거하여, 분사밸브 및 게이트밸브 중 적어도 한쪽의 이상이 검출된다.

Device which reduces a sensing error about a venting gas of a dual fuel engine

본 발명은 이중연료엔진 배출가스 감지오류 저감장치에 관한 것으로, 본 발명에서는 배출가스 감지센서의 상단 부위(예컨대, 배출가스 감지센서의 상단 부위에 배치된 오일 미스트 챔버)에 <잔류가스 배출라인을 흐르는 배출가스를 일부 강제 흡입한 후, 상기 잔류가스 배출라인으로 연결하여, 상기 배출가스의 유속 및 하부 가스의 이젝팅 효과(Ejecting effect)를 증가시킬 수 있는 구성요소들>을 추가 배치하고, 이를 통해, 배출가스 감지센서 측에서, 배출가스의 유속 증가를 기반으로 하여, 불필요한 경고신호를 발생시키지 않도록 함으로써, 운영주체(예컨대, 액화천연가스 운반선 운영주체, 이중연료엔진 운영주체 등) 측에서, 배출가스 감지센서의 오버 센싱(Over sensing) 문제를 회피하면서, 크랭크케이스 내부에 일련의 퍼지 가스를 불필요하게 공급하거나, 가스 운전을 무작정 중단시키는 등의 문제점까지도 손쉽게 회피할 수 있도록 가이드 할 수 있다. The present invention relates to a dual fuel engine exhaust gas detection error reduction device, in the present invention, the <residual gas exhaust line in the upper part of the exhaust gas detection sensor (e.g., oil mist chamber disposed in the upper part of the exhaust gas detection sensor). After forcibly inhaling a part of the flowing exhaust gas, connecting to the residual gas exhaust line, additional components > which are capable of increasing the flow rate of the exhaust gas and the ejecting effect of the lower gas are additionally arranged. Through the exhaust gas detection sensor side, based on the increase in the flow rate of the exhaust gas, by not generating unnecessary warning signals, the operating entity (e.g., the operator of the liquefied natural gas carrier, the operator of the dual fuel engine, etc.), While avoiding the over sensing problem of the exhaust gas detection sensor, it is possible to easily guide even a problem such as unnecessary supply of a series of purge gas into the crankcase or suddenly stopping gas operation.

Method and system for engine control

Methods and systems are provided for reducing exhaust temperatures during high engine load conditions in engine systems configured to operate with multiple fuels. Stoichiometric cylinder operation is provided via injection of a gaseous fuel such as CNG. In response to elevated exhaust temperatures, the cylinder is enriched by injecting a liquid fuel, such as gasoline, while maintaining the injection of CNG and while maintaining spark timing at MBT.

Air-fuel-ratio dithering using a dual fuel path source

An apparatus for dithering fuel into an internal combustion engine includes a turbine that is powered by the internal combustion engine and a first fuel injector that injects a first fuel into an air stream to create a fuel/air stream. The apparatus also includes an air/fuel compressor that provides a compressed fuel/air stream to the internal combustion engine. The air/fuel compressor is powered by the turbine, and the air/fuel compressor compresses the fuel/air stream to create the compressed fuel/air stream. Additionally, the apparatus includes a second fuel injector that injects a second fuel into the compressed fuel/air stream prior to the compressed fuel/air stream entering the engine and after the compressed fuel/air stream exits the air/fuel compressor.

Method and system for vacuum control

Methods and systems are provided for adjusting a fuel injection split between a direct injection and a port injection based on engine vacuum demand. When more intake manifold vacuum is required, relatively more direct injection is used to take advantage of the associated throttling for generating vacuum. The vacuum may then be used for canister purging, crankcase ventilation, or actuating an engine vacuum consumption device.

Injector-igniter with fuel characterization

A vehicular fuel system with onboard fuel characterization including an onboard combustion modifier source capable of supplying a combustion modifier agent, such as hydrogen, and a fuel tank capable of storing a fuel. An injector-igniter is operative to direct inject the fuel and a proportionate amount of the modifier agent into a cylinder of an internal combustion engine. An engine control unit is operatively connectable to the combustion modifier source and the injector. The system may further comprise a mixing valve operative to proportionately mix the fuel and modifier agent. The combustion modifier source may be a tank containing hydrogen or a thermo-chemical reactor, for example.

Systems and methods for improving operation of a highly dilute engine

Systems and methods for improving combustion in a highly exhaust gas diluted engine are disclosed. The methods and systems may be provided in an engine that is supplied two different types of fuel.

Low temperature dual fuel combustion utilizing diesel and methanol fuels

To reduce emissions at higher engine loads and speeds, methanol fuel is port-injected with charge-air into a diesel engine, and diesel fuel is then direct-injected to initiate combustion. The charge-air has a reduced oxygen concentration sufficient to prevent pre-ignition of the methanol prior to injection of the diesel fuel, and to reduce NOx formation. At low engine speeds and loads, the engine may run on diesel fuel alone.

Method and system for secondary fluid injection control in an engine

Methods and systems are provided for adjusting the amount of secondary fluid being injected into an engine. In one example, a method may include adjusting an amount of secondary fluid injected at an engine cylinder based on a secondary fluid injection amount estimated from outputs of an exhaust oxygen sensor. For example, the secondary fluid injection amount may be estimated based on a first change in pumping current of the exhaust oxygen sensor between a first and second reference voltage when only fuel is injected into the engine cylinder and a second change in pumping current of the exhaust oxygen sensor between the first and second reference voltage when fuel and the secondary fluid are injected into the engine cylinder.

Fuel property estimation device

This fuel property estimation device is used in an internal combustion engine that uses a mixed fuel of three kinds of fuel and includes a first sensor that outputs a signal responsive to a physical property of the fuel in a fuel route and a second sensor outputs a signal responsive to an oxygen concentration of exhaust gas. This device measures a physical property value of the mixed fuel based on a first sensor signal, and calculates an air-fuel ratio value at stoichiometric combustion state using feedback of a second sensor signal. This device estimates a composition ratio of the mixed fuel based on the measured physical property value and the calculated air-fuel ratio value by referring to a relationship between the composition ratio of the mixed fuel and the physical property value and a relationship between the composition ratio of the mixed fuel and a theoretical air-fuel ratio value.

Control apparatus and method for an internal combustion engine

The present invention resides in a control apparatus for an internal combustion engine in which selective use is made of a case where a first fuel, being easy to be ignited, is caused to combust by itself, and a case where a second fuel, being hard to be ignited, is also caused to combust by igniting the first fuel, and which is provided with an acquisition unit configured to acquire a combustion state of the second fuel in the case where the second fuel is also caused to combust by igniting the first fuel, and a decision unit configured to decide amounts of supply of the first fuel and the second fuel to be supplied to the internal combustion engine on and after next time, based on the combustion state of the second fuel determined by the acquisition unit.

Control device of internal-combustion engine, and ship provided with same, and method of operating internal-combustion engine

내연 기관에 있어서, 배기 규제 강화 해역에서는 추가 장치를 사용하지 않고서 NOx 의 배출을 억제할 수 있도록 하면서, 그 밖의 해역에서는 기관의 출력을 확보할 수 있도록 한다. 내연 기관의 운전 중에 적어도 연료 가스 확산 연소 방식과 연료 가스 예혼합 연소 방식을 선택 가능한 연소 방식 선택 수단 (44) 과, 선택된 연소 방식에 따른 연료 분사 양태가 되도록 연료 분사를 제어하는 연료 분사 제어 수단 (46) 과, 선택된 연소 방식에 따라서 실압축비를 변경하는 실압축비 변경 수단 (48) 을 구비하고, 실압축비 변경 수단 (48) 은, 내연 기관의 운전 중에, 연료 가스 예혼합 연소 방식으로 전환되면 실압축비를 저압축비로 변경하고, 연료 가스 확산 연소 방식으로 전환되면 상기 실압축비를 고압축비로 변경한다. In the internal combustion engine, emission of NOx can be suppressed without using an additional device in the exhaust-regulation-strengthened waters, and the output of the engine can be ensured in other sea areas. A combustion mode selecting means (44) for selecting at least a fuel gas diffusion combustion mode and a fuel gas premix combustion mode during operation of the internal combustion engine, fuel injection control means for controlling fuel injection such that a fuel injection mode according to the selected combustion mode And the actual compression ratio changing means (48) changes the actual compression ratio according to the selected combustion mode. When the internal combustion engine is switched to the fuel gas premix combustion mode, the actual compression ratio changing means (48) The compression ratio is changed to a low compression ratio, and the actual compression ratio is changed to the high compression ratio ratio when the fuel gas diffusion combustion mode is switched to.

Fuel component identification

A method adjusts fuel injection based on a fuel make-up, such as a fuel ethanol content. The fuel make-up may be learned during transient conditions by correlating transient fueling effects caused by the different evaporation rates of higher and lower ethanol content to measured exhaust air-fuel ratio. In this way, an ethanol content independent of combustion stoichiometry can be obtained, even during transients, that is less sensitive to part variation and sensor drift.

Method and system for improving fuel economy and reducing emissions of internal combustion engines

A method and system for improving the fuel economy and lowering the emissions of internal combustion engines by injecting predetermined amounts and ratios of on-board or locally generated hydrogen and oxygen to the engine's air intake and varying the gas addition volume and hydrogen/oxygen ratio as a function of the operating conditions, e.g., in line with the instant engine load.

Exhaust parameter based dual fuel engine power virtual sensor

The system comprises a fuel description module structured to provide a first signal, and a control circuit operable to receive the first signal. The fuel description module comprises a fuel consumption detection package. The fuel consumption detection package an intake manifold temperature sensor and an exhaust temperature sensor, wherein the first signal corresponds to a difference between the exhaust manifold temperature (EMT) and the intake manifold temperature (IMT). The control circuit is responsive to the first signal to produce a second signal indicating a total energy content (E fuel ) of fuel supplied to the dual-fuel engine. The E fuel value indicating the total energy content provided to the engine from a first fuel and a second fuel.

System for controlling injection of fuel in engine

System for controlling an injection of fuel in an engine is disclosed. The engine includes a cylinder and a first fuel injector to inject a first fuel in the cylinder. The system includes a sensor disposed on or proximate to the first fuel injector and configured to generate an electrical signal indicative of at least one of a start of the injection and an end of the injection of the first fuel. The system further includes a controller configured to adjust at least one of a mass and the start of injection of the first fuel to be injected by the first fuel injector based on the electrical signal. A dual-fuel engine employing the system for controlling an injection of fuel in an engine is also disclosed. Moreover, method and non-transitory computer readable media for controlling an injection of the fuel are also disclosed.

Abnormality determination apparatus

An internal combustion engine to which the apparatus is applied is a multi-cylinder internal combustion engine that includes a passage injection valve and a cylinder injection valve and that can use gasoline and alcohol as fuel. The apparatus performs abnormality determination for a determination object device, based on a detection signal of an oxygen sensor provided in an exhaust passage of the internal combustion engine. The concentration sensor detects alcohol concentration ALp of the fuel in a first fuel passage through which the fuel is fed to the passage injection valve, and alcohol concentration ALd of the fuel in a second fuel passage through which the fuel is fed to the cylinder injection valve. When a difference ΔAL between the alcohol concentrations ALp, ALd is a determination value or greater (S 13 : YES), the execution of the abnormality determination is prohibited (S 12 ).

Diesel engine for a LPG-diesel mixture

A diesel engine for combusting a diesel-LPG mixture includes a fuel system for supplying diesel and LPG. The mixture is obtained by combining the fuel flow from a LPG tank and diesel tank. Increased pressure is applied in both fuel flows for mixing purposes. Immediately following the mixing a circulation system is present in which increase in pressure also takes place, wherein a part of the mixture is supplied to a high-pressure pump for injection to the diesel engine and a part is recirculated. In a method of supplying the diesel-LPG mixture, the part of the mixture that is supplied to the high-pressure pump is returned to a position upstream of the mixing point. The pressure in the fuel system is higher downstream of the mixing point. When the LPG supply is switched off the pressure can be gradually decreased through circulation.

Method and system for determining knock control fluid composition

Methods and systems are provided for accurately determining the composition of a knock control fluid using sensors already present in the engine system. An intake or an exhaust oxygen sensor is used to estimate the water and the alcohol content of a knock control fluid that is direct injected into an engine cylinder responsive to an indication of abnormal combustion. A change in the pumping current of the oxygen sensor due to the water content of the knock control fluid is distinguished from a change in the pumping current of the oxygen sensor due to the alcohol content of the knock control fluid.

Method of estimating antiknock properties of multi-fuel injection internal combustion engine

A method of estimating antiknock properties of a multi-fuel injection internal combustion engine includes: acquiring a first antiknock property-correlated parameter value while only a first fuel having a low octane rating is injected in a first load range; estimating a first antiknock property of the first fuel based on the first antiknock property-correlated parameter value; acquiring a second antiknock property-correlated parameter value while the first fuel and a second fuel which has a high octane rating higher than the low octane rating are injected in a second load range higher than the first load range; and estimating a second antiknock property of the second fuel based on the second antiknock property-correlated parameter value and the first antiknock property of the first fuel.

Cylinder pressure based control of dual fuel engines

Systems and methods for controlling operation of dual fuel internal combustion engines in response to cylinder pressure based determinations are disclosed. The techniques control fueling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations.

Fuel system protection in a multi-fuel system internal combustion engine

A technique for fuel system protection for an internal combustion engine includes introducing a directly injected fuel into a combustion chamber through a direct fuel injector, introducing a fumigated fuel upstream of an intake valve, selectively operating the internal combustion engine with at least one of the directly injected fuel and the fumigated fuel, determining a temperature of the direct fuel injector as a first function of engine operating parameters, and performing a temperature mitigation technique when the temperature rises above a first predetermined value such that the temperature is maintained below a second predetermined value.

Control apparatus for internal combustion engine

An electronic control unit calculates a rotation variation amount ΣΔNE as a cetane number index value of the fuel supplied to an internal combustion engine and executes fuel injection control in a first execution mode corresponding to the rotation variation amount ΣΔNE (S 407 , S 408 ). In a mixing period in which the cetane number of the fuel supplied to the internal combustion engine is changed due to the fuel feed into the fuel tank (S 401 : YES), the fuel injection control is executed in a second execution mode such that, compared with the first execution mode, stable operation of the internal combustion engine is given more importance (S 402 :YES, S 403 ). When calculation of the rotation variation amount ΣΔNE is executed during the mixing period (S 404 : YES), fuel injection control is executed while limiting the reflection of the rotation variation amount ΣΔNE (S 405 , S 406 ).

Mixing block

A mixing block to supply a throttle-able hydrogen and air mixture to an internal combustion engine includes a bore through the mixing block between an air intake side and an engine intake side. A slider chamber is disposed orthogonal to and intersecting the bore, where the slider chamber houses a movable slider biased to at least partially block the bore but throttle-able to overcome the bias and reduce blockage of the bore. A jet chamber is disposed parallel to and intersecting the slider chamber and extending away from the slider chamber a distance sufficient to accommodate a shaped needle, where the needle is connected to the slider on one side such that the needle moves within the jet chamber as the slider moves in the slider chamber.

Uniflow scavenging 2-cycle engine

유니플로 소기식 2사이클 엔진은, 연료 공급로(170)에 있어서, 서로 병렬로 마련되고 분사구(132e)로부터의 연료 가스의 분출을 제어하는 복수의 분사 밸브(160)와, 분사 밸브를 전환하기 위한 작동유를 토출하는 유압 펌프(174)와, 유압 펌프로부터 토출되는 작동유가 도출되는 주 유로(176)와, 주 유로로부터 분기하여 주 유로로부터 분사 밸브로 작동유를 도출하는 복수의 분기 유로(178)와, 복수의 분기 유로 각각에 마련되어 분사 밸브를 전환하는 전환 밸브(180)를 구비한다. 분기 유로는, 실린더의 둘레방향으로 인접한 복수의 분사구로부터의 연료 가스의 분출을 제어하는 하나 또는 복수의 분사 밸브에 접속되고, 분기 유로에 마련된 하나의 전환 밸브의 전환에 의해, 인접한 복수의 분사구로부터의 연료 가스의 분출이 제어된다. The uni-flow scavenging two-cycle engine includes a plurality of injection valves 160 arranged in parallel with each other in the fuel supply path 170 and controlling the injection of the fuel gas from the injection port 132e, A plurality of branch flow passages 178 branching from the main flow passages and leading hydraulic fluid to the injection valves from the main flow passages 176. The main flow passages 176, And a switching valve 180 provided in each of the plurality of branching flow paths for switching the injection valves. The branch flow path is connected to one or a plurality of injection valves for controlling the ejection of the fuel gas from the plurality of injection ports which are adjacent to each other in the circumferential direction of the cylinder and by switching one of the switching valves provided in the branch flow path, Of the fuel gas is controlled.

Control apparatus and method for an internal combustion engine

The present invention is intended to provide a technique of improving exhaust emissions at the time of starting up of an internal combustion engine, without decreasing the performance of a catalyst at the time of the engine starting up. The present invention is provided with the catalyst that is arranged in an exhaust passage of the internal combustion engine in which a plurality of kinds of fuels are able to be used, and serves to adsorb and remove exhaust gas components discharged from the internal combustion engine, wherein in cases where among the plurality of kinds of fuels, a first fuel is used in which unburnt fuel components thereof are easily adsorbed to the catalyst, at the time when a request is made for stopping the internal combustion engine, said first fuel is changed to a second fuel thereby to operate said internal combustion engine until said internal combustion engine is stopped.

Engine

Provided is an engine that suppresses the occurrence of knocking or an accidental fire, which makes it possible to perform the operations of premixed compression self-ignition. Regarding the present invention, an engine includes a reforming cylinder, which is a fuel reforming device, and the reforming cylinder is connected to an intake pipe and an EGR pipe via a supply pipe and connected to the intake pipe via an exhaust pipe, and a primary fuel injection device is provided that injects fuel to the mixture of intake air and exhaust gas supplied to the reforming cylinder through the supply pipe.

Apparatus and method for fuelling a flexible-fuel internal combustion engine

A flexible-fuel internal combustion engine apparatus comprises a combustion chamber, an intake valve, a first fuel injector, a second fuel injector, and a computer. The intake valve is operable to admit an intake charge into the combustion chamber. The first fuel injector injects a gaseous fuel directly into the combustion chamber. The second fuel injector injects a liquid fuel into the intake charge upstream of the intake valve. The computer is operatively connected with the first fuel injector and the second fuel injector to actuate injection of fuel respectively therefrom. The computer is programmed to command a gaseous-to-liquid fuel ratio as a function of at least one operating parameter from a group comprising gaseous fuel pressure, gaseous fuel mass, engine speed, engine torque, inlet air temperature, inlet air humidity, knock detection, operating history, torque command, and emissions.

Ignition and knock tolerance in internal combustion engine by controlling EGR composition

A method for improving ignition of a spark ignited internal combustion engine by controlling the composition of recirculated exhaust gas. It is assumed that the engine has a spark ignition system and an exhaust gas recirculation (EGR) loop such that at least one of the combustion cylinders is an EGR cylinder that generates an EGR stream carried by the EGR loop. Thus, the combustion charge is a mixture of air, fuel and recirculated exhaust. A first step is receiving combustibility data representing the current ignitability of the charge. It is then determined whether the energy of the ignition system is sufficient to ignite the charge. If not, the amount of hydrogen in the EGR stream is increased, which increases the ignitability of the charge.

Method and system for detection of fuel quality using engine power output and NOx emission values

A method and a system for detecting a fuel quality in a vehicle including a first determination unit to determine a correction factor k kW for fuel as a quotient between an output fo kW required to propel a vehicle and a reference output eng kW which an engine in the vehicle is estimated to yield; k k ⁢ ⁢ W = fo k ⁢ ⁢ W eng k ⁢ ⁢ W ; a second determination unit to determine a correction factor k NOx for exhaust gas emissions as a quotient between a value measured in the vehicle for nitrogen oxides eng NOx and a reference value for nitrogen oxides ECU NOx ; k NOx = eng NOx ECU NOx ; and a detection unit to detect the fuel quality based on a relation between the correction factor k kW for fuel and the correction factor k NOx for exhaust gas emissions.

Combustion system for gaseous fueled internal combustion engine

Gaseous fuel injection pressures are normally less than liquid fuel injection pressures, resulting in reduced gaseous fuel jet momentum and mixing. A combustion system for an internal combustion engine comprises an intake port and valve, a cylinder and a piston that cooperate to provide a quiescent combustion chamber. The piston includes a re-entrant type piston bowl comprising an outer periphery and a protuberance emanating from the outer periphery. A fuel injector is configured to directly introduce a gaseous fuel into the combustion chamber and an ignition source is provided for igniting the gaseous fuel. A controller actuates the fuel injector such that a gaseous fuel jet is directed towards and splits upon impacting the protuberance forming first and second fuel plumes. The first fuel plume is redirected towards a first mixing zone adjacent a cylinder head and the second fuel plume redirected towards a second mixing zone adjacent the piston bowl.

Fuel injection valve and method for co-injecting a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine

A fuel injection valve co-injects a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine. A solid needle regulates the injection of liquid and gaseous fuels from a cavity in the fuel injection valve into the combustion chamber when the needle is lifted to its open position. In preferred embodiments, liquid fuel is metered and pressurized in an intensifier's cylinder provided within the valve body and the liquid fuel is delivered through a restricted flow passage into the cavity where it mixes with the gaseous fuel. The restricted flow passage can be formed by a small passage formed in the valve body or an annular passage between the needle and the valve body.

Multi-fuel engine system

Various methods and systems are provided for an engine capable of receiving liquid and gaseous fuel. In one example, cylinder misfire may be identified based on a misfire monitor. The misfire monitor may detect misfire based on signals from a crankshaft sensor.

Liquefied gas fuel supply system and method of operating a power plant of an internal combustion engine energized by liquefied gas

본원은 액화 가스 연료 공급 시스템에 관한 것으로서, 액화 가스 연료 공급 시스템은: 극저온 환경에서 액화 가스 및 가스성 가스를 저장하도록 구성된 액화 가스 용기 (12), 상기 가스의 누손 공간 (12.2) 으로 개방되는 제 1 연료 통로 (14), 상기 가스의 바닥부 (12.1) 로 개방되고 제어가능한 펌프 (22) 가 제공된 제 2 연료 통로 (16), 적어도 2 개의 가스 소모기들 (18.1, 18.2, ... 18.N) 중 하나의 가스 소모기에 가스를 운반하도록 각각 구성된 적어도 2 개의 연료 전달 통로들 (28.1, 28.2, ... 28.N), 및 상기 제 1 연료 통로 (14) 또는 상기 제 2 연료 통로 (16) 를 상기 적어도 2 개의 연료 전달 통로들 (28.1, 28.2, ... 28.N) 각각에 교대로 연결하도록 구성된 밸브 조립체 (26) 를 포함한다. The present application relates to a liquefied gas fuel supply system, the liquefied gas fuel supply system comprising: a liquefied gas container (12) configured to store liquefied gas and gaseous gas in a cryogenic environment, the gas leaking space (12.2) 1 fuel passage 14, a second fuel passage 16 open to the bottom 12.1 of the gas and provided with a controllable pump 22, at least two gas consumers 18.1, 18.2, ... 18 .N) at least two fuel delivery passages (28.1, 28.2, ... 28.N), each configured to convey gas to one of the gas consumers, and the first fuel passage 14 or the second fuel passage And a valve assembly (26) configured to alternately connect (16) to each of the at least two fuel delivery passages (28.1, 28.2, ... 28.N).

Dual fuel architecture and method for cylinder bank cutout and increased gas substitution during light load conditions

The present disclosure relates to dual fuel internal combustion engines with multiple cylinder banks and/or cylinder subsets, and exhaust aftertreatment systems associated therewith. Systems and methods are disclosed that relate to engine operations involving fuelling control for fuel cutout of one or more of the cylinder banks and/or cylinder subsets in response to a fuel cutout event to increase gaseous fuel substitution on the other cylinder banks and/or cylinder subsets to satisfy the torque request and thermal management conditions of the aftertreatment system.

Fuel injection control device

Powdered fuels, dispersions thereof, and combustion devices related thereto

This application describes powdered fuels, methods of producing powdered fuels source, and dispersions of powdered fuels, as well as systems, kits, and methods for producing and adapting combustion devices to burn powdered fuel, either as a sole fuel source or in combination with existing fuel sources. Exemplary embodiments include engines and furnaces adapted to combust powdered fuel.

Fuel selection method and related system for a mobile asset

Embodiments of methods and systems related to operating a mobile asset over a fixed route are provided. In one example, an engine system is provided. The example engine system includes a fuel controller configured to adjust a first amount of at least one of a first fuel of a plurality of fuels delivered to an engine and a second amount of a second fuel of the plurality of fuels responsive to at least one of fuel market information for the plurality of fuels or route information about a fixed route along which a mobile asset powered by the engine is operable to travel.

Low load operation system of dual fuel engine and low load operation using the same method

본 발명은 이원 연료 엔진의 저부하 운전 시스템 및 이를 이용한 저부하 운전 방법에 관한 것으로서, 보다 구체적으로는 이원 연료 엔진 또는 가스 엔진에서 무부하 또는 저부하 운전시 연료의 불완전 연소를 해소하여 에너지 효율을 향상시켜 안정적인 운전을 가능케 하는 이원 연료 엔진의 저부하 운전 시스템 및 이를 이용한 저부하 운전 방법에 관한 것이다. 이를 위해, 가스엔진 또는 이원 연료 엔진의 저부하 운전을 위한 시스템에 있어서, 각 실린더마다 설치되고, 실린더에서 배출되는 배기가스의 온도를 측정하기 위한 배기 온도센서; 각 실린더마다 설치되고, 디젤연료를 미세하게 제어하여 분사하기 위한 파일럿 연료분사장치; 및 상기 배기 온도센서에서 측정된 온도 값을 전달받고, 전달받은 온도 값을 통해 상기 파일럿 연료분사장치가 각 실린더에 분사하는 분사설정을 계산 후 결정하고 제어하기 위한 제어부;를 포함하는 이원 연료 엔진의 저부하 운전 시스템 및 이를 이용한 저부하 운전 방법을 제공한다.

Fuel control device for a combustion engine

A fuel control device for a combustion engine capable of running on any one of a plurality of fuels has a fuel selection module with a plurality of fuel type settings for selecting a specific fuel type whereupon the fuel control device controls the outlet pressure of the chosen fuel to a desired fuel pressure corresponding to the calorific properties of the chosen fuel. The fuel selection module preferably operates a plurality of fuel flow circuits each designated for a specific fuel type, and each having a biased closed inlet valve and a biased closed outlet valve. Located preferably between each inlet and outlet valve is a pressure regulator designated for the specific fuel type and controlling the outlet fuel pressure. The device preferably includes a fuel metering apparatus and a shutoff valve that communicate with, and control in part, fuel flow through the fuel flow circuits.

For operating a piston engine in gas mode and piston engine

가스 모드에서 피스톤 엔진 (1) 을 작동시키기 위한 방법은 상기 피스톤 엔진 (1) 의 실린더 (2) 의 연소 챔버 (19) 내로 가스 상태의 메인 연료를 도입하는 단계와 상기 실린더 (2) 의 상기 연소 챔버 (19) 및/또는 프리 챔버 내로 액체 파일럿 연료를 분사하는 단계를 포함한다. 상기 파일럿 연료는 적어도 제 1 분사 이벤트 및 제 2 분사 이벤트 동안 분사되고, 상기 제 1 분사 이벤트 및 상기 제 2 분사 이벤트는 시간에 대해 서로 별개이고, 그리고 상기 제 1 분사 이벤트 동안 분사되는 상기 파일럿 연료의 양은 실린더 압력 측정에 기초하여 조정된다. A method for operating a piston engine (1) in a gas mode comprises the steps of introducing gaseous main fuel into a combustion chamber (19) of a cylinder (2) of the piston engine (1) And injecting liquid pilot fuel into the chamber 19 and / or into the prechamber. Wherein the pilot fuel is injected during at least a first injection event and a second injection event, the first injection event and the second injection event being separate from each other in time, and the pilot fuel injected during the first injection event The amount is adjusted based on the cylinder pressure measurement.

Dual fuel lockout switch for generator engine

A mechanical fuel lockout switch for a dual fuel engine includes a mechanical fuel valve actuateable between a first position and a second position to selectively control fuel flow to the dual fuel engine from a first fuel source through a first fuel line and a second fuel source through a second fuel line. The mechanical fuel lockout switch also includes a fuel lockout apparatus coupled to the mechanical fuel valve. The mechanical fuel lockout switch communicates the first fuel source to the dual fuel engine and prevents communication between the second fuel source and the dual fuel engine when the mechanical fuel valve is in the first position, and communicates the second fuel source to the dual fuel engine and interrupts the first fuel source communication with the dual fuel engine when in the second position.

Injection timing management in dual fuel engine system

A fuel injection timing management system for a dual fuel engine is configured to determine a first diesel injection timing corresponding to a first mode of operation of the engine system and a second diesel injection timing corresponding to a second mode of operation. The system may further determine a direction of change in a mode of operation of the engine system, and selectively perform a change in the diesel injection timing from the first diesel injection timing to the second diesel injection timing at a first rate of transition or a second rate of transition, based on the direction of change in a mode of operation of the engine system.

Method of controlling a dual fuel engine

본 발명은, 제1 가스 연료의 형태로 및 자기 점화, 특히 액체의 제2 연료의 형태로 하는 파워가 엔진의 적어도 하나의 연소실(4)로 공급되고, 상기 적어도 하나의 연소실(4)을 대표하는 노킹 신호가 검출되는 이중 연료 엔진(1)을 제어하는 방법에 있어서, 적어도 제1 세기의 노킹을 나타내는 노킹 신호의 발생시에, 상기 엔진(1)의 적어도 하나의 연소실(4)로 공급되는 제1 연료의 양이 증가되고, 상기 제1 연료의 양의 증가에 의해 유발되는, 상기 연소실(4) 내로의 파워의 증가된 도입은 상기 제2 연료의 파워 기여에서의 대응하는 감소에 의해 보상되며, 상기 제1 세기보다 큰 적어도 제2 세기의 노킹을 나타내는 노킹 신호의 발생시에, 상기 적어도 하나의 연소실(4)로 공급되는 상기 제1 연료의 양이 감소되는 것을 특징으로 하는 이중 연료 엔진 제어 방법 및 이중 연료 엔진에 관한 것이다. The present invention relates to a method for the production of at least one combustion chamber (4), characterized in that power in the form of a first gaseous fuel and in the form of self-ignition, in particular in the form of a second fuel of a liquid is supplied to at least one combustion chamber (4) (1) which is supplied to at least one combustion chamber (4) of the engine (1) at the time of generation of a knocking signal indicative of knocking of at least a first intensity, 1 fuel is increased and an increased introduction of power into the combustion chamber 4, which is caused by an increase in the amount of the first fuel, is compensated by a corresponding reduction in the power contribution of the second fuel , The amount of said first fuel supplied to said at least one combustion chamber (4) is reduced upon generation of a knock signal indicative of knocking of at least a second intensity greater than said first intensity And Fuel engine.

Method for improving engine performance using a temperature managed fuel system

A method to operate an internal combustion engine having a fuel delivery system and a heat exchanger located to affect a fuel temperature within the fuel delivery system includes monitoring a desired heat transfer between a flow through the heat exchanger and fuel within the fuel delivery system, determining a required flow through the heat exchanger based upon the desired heat transfer, and controlling a flow control device for the heat exchanger based upon the determined required flow.

Method and apparatus for pumping fuel to a fuel injection system

A method and apparatus pump fuel to a fuel injection system in an internal combustion engine. The method comprises steps of pumping a liquid fuel to a first pressure, using the liquid fuel at the first pressure as a hydraulic fluid for driving a gaseous fuel pump, and pumping a gaseous fuel to a second pressure with the gaseous fuel pump.

Port injection system for reduction of particulates from turbocharged direct injection gasoline engines

The present invention describes a fuel-management system for minimizing particulate emissions in turbocharged direct injection gasoline engines. The system optimizes the use of port fuel injection (PFI) in combination with direct injection (DI), particularly in cold start and other transient conditions. In the present invention, the use of these control systems together with other control systems for increasing the effectiveness of port fuel injector use and for reducing particulate emissions from turbocharged direct injection engines is described. Particular attention is given to reducing particulate emissions that occur during cold start and transient conditions since a substantial fraction of the particulate emissions during a drive cycle occur at these times. Further optimization of the fuel management system for these conditions is important for reducing drive cycle emissions.

Propane fuel supplement system and method

A propane injection system for supplementing gasoline or diesel engines in vehicles such as automobiles and marine vessels. The invention would also be appropriate for use in turbines and jet engines by providing a secondary fuel source for improved fuel economy. A propane tank is mounted into the vehicle, such as within a cavity within the trunk of an automobile, and is connected to the air intake, exhaust, and turbo charger of the vehicle's stock engine system. A switch is used to activate the injection of propane directly into the engine cycle at two points to increase engine performance. The switch could be incorporated into an existing switch, such as the cruise control of an automobile, and may be canceled by depressing the brake pedal of the vehicle.

Method for operating an internal combustion engine

적어도 하나의 실린더와, 상기 적어도 하나의 실린더에서 이동가능한 피스톤을 가지는 압축 점화 엔진을 작동시키기 위한 방법으로서 - 제1 연료(F1)와 공기(A)를 대체로 균질하게 혼합하고 이 혼합물을 상기 적어도 하나의 실린더(2) 내로 도입하는 것에 의해 연소 가능한 혼합물을 형성하는 단계, - 압축 스트로크에서 상기 피스톤(3)으로 상기 연소 가능한 혼합물을 압축하는 단계, - 압축 스트로크 동안, 그러나 연소 시작 전에 상기 연소 가능한 혼합물에, 상기 제1 연료(F1)보다 자동 점화가 용이한 제2 연료(F2)를 추가하고, 그러므로 실린더 충전물을 생성하는 단계, - 상기 제2 연료(F2)의 농도 및/또는 상기 혼합물의 온도가 가장 높은, 상기 실린더(2) 내 위치에서 연소가 시작할 때까지 압축 스트로크를 계속하는 단계를 포함하며, 상기 실린더 충전물의 온도, 또는 상기 연소 가능한 혼합물에 추가된 상기 제2 연료(F2)의 양 또는 양자의 조합은 원하는 연소 기간이 달성될 수 있도록 선택된다.