45 results about "Spark-ignition engine" patented technology

According to an aspect of the present application, there is provided a radially deformable volume splitter (100; 200) for a fuel injection system (1) of a spark-ignition engine (2). The volume splitter (100; 200) can be tubular and elongate, extending along a longitudinal axis from a first end (102) to a second end (104). The volume splitter (100; 200) can comprise a deformable longitudinal slot (116) operable to deform the volume splitter (100; 200) radially from a first state for insertion into a cavity (18; 218) of the emulsion injection common rail (10) to a second state for use within the cavity (18; 218), and a set of slots (112a-112k) arranged on an outer surface (106) of the volume splitter (100; 200) to connect, in use, an inlet (20) of the cavity (18; 218) to one or more outlets (22a-22d) of the cavity (18; 218).

Spark plug for a spark-ignition engine. Spark plug (10) for a spark-ignition engine comprising: - a first electrode (1), - a second electrode (2), - a third electrode (13), - a fourth electrode (23), - a first inter-electrode gap (14) located between the first electrode (1) and the third electrode (13), - a second inter-electrode gap (24) located between the second electrode (2) and the fourth electrode (23), and - a base (8), particularly in the lower part of the spark plug, the third and fourth electrodes (13, 23) forming part of the base (8). Figure for the abbreviation: 1

The present invention addresses the problem of suppressing an excessive decrease in the output torque of an engine during execution of an inter-cylinder correction process. A drive control device is applied to a vehicle provided with a spark ignition engine having a plurality of cylinders. A first processing circuit of the drive control device executes inter-cylinder correction processing for correcting fluctuations in the magnitude of engine torque at the ignition timing of a plurality of cylinders and adjusting the amount of fuel supplied to the cylinders or the ignition timing for each of the plurality of cylinders. Lower limit protection is set for the amount of fuel supplied to the cylinder or the correction amount of ignition timing when the inter-cylinder correction process is executed.

The present invention discloses a Hydrogen Fuelled Enhanced Combustion (HFEC) technology bases spark ignition engine (1) for genset applications. The HFEC technology based spark ignition engine (1) includes a hydrogen gas cylinder (2), a H2-PNG blender (3), a gas-train assembly (5), an electronic fuel control valve (6), a gas-air mixer (7), and an ECU (9). The H2-PNG blender (3) blends the hydrogen gas with the PNG to form H2-PNG fuel. The gas-train assembly (5) receives the H2-PNG fuel from the H2-PNG blender (3). The electronic fuel control valve (6) controls flow of the H2-PNG fuel to maintain an air-fuel ratio. The gas-air mixer (7) mixes the H2-PNG fuel with the air to form a gas-air fuel mixture. The ECU (9) maintains a fixed speed of an internal combustion engine (11) required to generate electrical output using the gas-air fuel mixture and generates a spark required for combustion.

A method of removing deposits in a direct injection spark ignition engine, the method including combusting in the engine a gasoline fuel composition having a quaternary ammonium salt additive wherein the quaternary ammonium salt additive includes the quaternised reaction product of a hydrocarbyl substituted succinic acid derived acylating agent and a compound able to react with said acylating agent and which includes a tertiary amine group; in which each molecule of the hydrocarbyl substituted succinic acid derived acylating agent includes on average at least 1.2 succinic acid moieties

This method for heating a pollution control catalyst in a direct-injection spark-ignition engine comprising a piston cylinder driven between a top dead center (H) position and a bottom dead center (B) position by a rotating crankshaft includes, during each fuel injection cycle: - a stratified injection stage (17) of fuel into the cylinder, beginning between 0° and 90° crankshaft angle after the piston has passed its top dead center (H), and during an expansion phase (D) in the cylinder; and - an ignition stage (19), beginning between 2° and 15° crankshaft angle after the end of the stratified injection stage (17). Figure for the abbreviation: Fig. 5

The invention relates to an arrangement (20) comprising a cylinder head (3) and a spark plug (4) which comprises an opening (46) opening into an internal volume (400) of the spark plug, a hole (45) capable of opening into a combustion chamber (23), and a channel (47) capable of providing a fluid connection between the opening (46) and the hole (45), the arrangement (20) comprising a circuit (5) for supplying a flow of cooling air (FR), making it possible to circulate the flow towards the internal volume (400), a pump (6) and at least one means (7) for regulating the circulation of the flow.

Systems and methods for spark ignition in a combustion engine are provided. The spark ignition system includes a terminal, a magnetic body, an insulating body, and a grounding body. The spark ignition system further includes a center electrode electrically connected to the terminal and protruding into a combustion chamber. The grounding body includes a body section and an inclined section. The spark ignition engine includes a combustion chamber and a spark ignition system. The method includes applying a voltage to a spark ignition system, thereby generating a spark.

A radially deformable volume splitter of an emulsion injection common rail for a fuel injection system of a spark ignition engine. The volume splitter may be tubular and elongate, extending along a longitudinal axis from a first end to a second end. The volume splitter may comprise: a deformable longitudinal slot operable to radially deform the volume splitter from a first state for insertion into a cavity of the emulsion injection common rail to a second state for use inside the cavity; and a set of grooves, arranged on an outer surface of the volume splitter, for connecting an inlet of the cavity to one or more outlets of the cavity, in use.

The present disclosure relates to assemblies for engines such as pre-combustion chamber assemblies for spark ignition engines. In one example, a pre-combustion chamber assembly includes an ignition chamber adapted to contain at least one electrode of a spark generator. The ignition chamber being adapted to communicate with a main engine combustion chamber via a plurality of pre-chamber ports. The ignition chamber communicates for removal therefrom of exhaust gas residuals to a distinct storage chamber via at least one transfer port. The ignition chamber includes a single substantially cylindrical entrance channel leading from said pre-chamber ports in a direction towards an ignition region of the ignition chamber. The ignition region having a larger cross-section than the entrance channel.

A method for controlling a multi-cylinder spark-ignition engine (10) including a monitored cylinder (11) and a plurality of unmonitored cylinders (12, 13, 14), wherein an in-cylinder pressure sensor (15) is arranged in the monitored cylinder (11), the method comprising: Monitoring the internal cylinder pressure for the monitored cylinder (11) during a combustion event for the monitored cylinder (11) via the pressure sensor (15); Determining a first ignition timing (209) for the monitored cylinder (11) based on a desired ignition timing (211) and the internal cylinder pressure; Controlling the ignition timing for the monitored cylinder (11) based on the first ignition timing (209); Monitoring the engine speed and the crankshaft speed via a rotational position sensor associated with the monitored cylinder (11) and the non-monitored cylinders (12, 13, 14); Determining a modal coefficient for the non-monitored cylinders (12, 13, 14) based on the engine speed and the crankshaft speed pulsations; Determining coefficient errors for the unmonitored cylinders (12, 13, 14) based on the modal coefficients; performing a compensation control to determine an ignition timing setting for each of the unmonitored cylinders (12, 13, 14) based on the coefficient error; Determining final ignition times for the non-monitored cylinders (12, 13, 14) based on the desired ignition timing (211) and the respective ignition timing setting; and Controlling the ignition timing for each of the non-monitored cylinders (12, 13, 14) based on the respective final ignition timing.

A method of removing deposits in a direct injection spark ignition engine, the method including combusting in the engine a gasoline fuel composition having a quaternary ammonium salt additive wherein the quaternary ammonium salt additive includes the quaternised reaction product of a hydrocarbyl substituted succinic acid derived acylating agent and a compound able to react with said acylating agent and which includes a tertiary amine group; in which each molecule of the hydrocarbyl substituted succinic acid derived acylating agent includes on average at least 1.2 succinic acid moieties.

The invention relates to an integrated electric starting mechanism, an electric starting chain saw and a gardening tool powered by a spark ignition type engine to at least solve the problem that an electric starting mechanism of an existing electric starting mechanism is complex in assembly, the integrated electric starting mechanism comprises a shell, a driving motor is arranged in the shell, the driving motor is provided with an output end, and the output end of the driving motor is connected with the spark ignition type engine. The shell is provided with a coupling mechanism which can be used for being matched with a flywheel assembly on a tool to be started, and the coupling mechanism is in fixed or transmission connection with the output end.

A lubricant composition for a direct injected, boosted, spark ignited internal combustion engine that comprises one or more molybdenum-containing compounds and one or more calcium detergents is disclosed. This disclosure also relates to a method for reducing or preventing low speed pre-ignition (LSPI) in the course of at least one oil change interval.

An engine system includes a spark-ignited engine having at least one cylinder, and at least one piston to compress an intake charge therein and provide a variable compression ratio. The system includes a pent-roof cylinder head to induce a tumble flow of intake charge. The system includes an air handling system to control air flow through a turbocharger system via at least one actuator within at least one of an intake air throttle, a wastegate, or an exhaust gas recirculation system. The system includes at least one sensor to sense at least one of a temperature or a knock condition, and at least one controller to control at least one of a rate of flow of the intake charge or the at least one actuator based on the at least one of the temperature or the knock condition to satisfy an efficiency target of the engine.

The invention relates to an arrangement (20) comprising a cylinder head (3) and a spark plug (4) which comprises an opening (46) opening into an internal volume (400) of the spark plug, a hole (45) capable of opening into a combustion chamber (23), and a channel (47) capable of providing a fluid connection between the opening (46) and the hole (45), the arrangement (20) comprising a circuit (5) for supplying a flow of cooling air (FR), making it possible to circulate the flow towards the internal volume (400), a pump (6) and at least one means (7) for regulating the circulation of the flow.

This disclosure relates to the use of di(alkyl substituted phenyl)amine antioxidants as additives in lubricant compositions having good oxidation properties in engine crankcase applications, especially in compression ignited engine and or spark ignited engine applications, where the antioxidant comprises less than 0.1 mass% unsubstituted diphenylamine, from 0 to 20 mass% of mono-C9-alkyl substituted diphenyl amine and tri-C9-alkyl substituted diphenyl amine, and 80 to 100 mass% di-C9-alkyl substituted phenyl amines based upon the weight of the unsubstituted diphenylamine, and the mono-, di- and tri-C9-alkyl substituted phenyl amines.

A methane and hydrogen injection device is provided. The methane and hydrogen injection device includes a first methane injector, a second hydrogen injector, a single common injection pipe. The injectors are associated together so as to produce a mixture of methane and hydrogen with a variable concentration ratio, and the common injection duct is shaped to be operatively connected to an intake manifold of a spark-ignition internal combustion engine.

A method of reducing emissions of particulate matter less than 2.5 microns in diameter in a direct injection spark ignition engine, the method comprising combusting in the engine a gasoline composition comprising one or more quaternary ammonium compounds as an additive.

Systems and methods for spark ignition in a combustion engine are provided. The spark ignition system includes a terminal, a magnetic body, an insulating body, and a grounding body. The spark ignition system further includes a center electrode electrically connected to the terminal and protruding into a combustion chamber. The grounding body includes a body section and an inclined section. The spark ignition engine includes a combustion chamber and a spark ignition system. The method includes applying a voltage to a spark ignition system, thereby generating a spark.

The present invention is directed to an exhaust gas system for reducing exhaust gas emissions and in particular ammonia emissions in the exhaust gas train of a predominantly stoichiometrically operated spark ignition engine.

Title: Arrangement comprising a cylinder head and a spark plug for a spark ignition engine Arrangement (20) comprising a cylinder head (3) and a spark plug (4) comprising an opening (46) opening into an internal volume (400) of said spark plug, a hole (45) capable of opening into a combustion chamber (23) and a channel (47) capable of implementing a fluid connection between the opening (46) and the hole (45), the arrangement (20) comprising a supply circuit (5) for a cooling air flow (FR) allowing the circulation of said flow towards the internal volume (400), a pump (6) and at least one means (7) for regulating the circulation of said flow.

A lubricant composition for a direct injected, boosted, spark ignited internal combustion engine that comprises one or more molybdenum-containing compounds and one or more calcium detergents is disclosed. This disclosure also relates to a method for reducing or preventing low speed pre-ignition (LSPI) in the course of at least one oil change interval.

A fuel delivery system includes a fuel tank, a primary fuel pump disposed in the fuel tank, a fuel regulator device connected with the primary fuel pump by a primary fuel delivery line, and a fuel cooler device coupled with the fuel regulator device by a fuel bypass line and with the fuel tank by a fuel return line. The fuel regulator device receives unregulated supply fuel from the primary fuel pump via the primary fuel delivery line, controls a property of the unregulated supply fuel for output as regulated fuel, and delivers the regulated fuel via a regulated fuel delivery line to a secondary fuel pump of the work vehicle. The fuel cooler device receives bypass fuel from the fuel regulator device via the fuel bypass line, cools the received bypass fuel, and delivers the cooled bypass fuel to the fuel tank via the fuel return line.

The present invention provides a spark-ignition engine that makes it possible to improve net thermal efficiency.　Provided is a spark-ignition engine 1 comprising a main chamber 10 that is defined by a cylinder 2 and a piston 3, and a pre-chamber 20 that has an ignition means 204, wherein: a plurality of communication holes 201a are provided and communicate the pre-chamber 20 with the main chamber 10; an air-fuel pre-mixture having an excess air ratio exceeding the flame propagation limit is supplied to the main chamber 10; and an air-fuel mixture having an excess air ratio at which flame propagation is possible is supplied to the pre-chamber 20.

Method of supplying a spark-ignition internal combustion engine is provided. The method includes a mixing procedure, on board the vehicle, of methane and hydrogen and in which a ratio between methane and hydrogen is determined at least as a function of a methane quality. A spark ignition internal combustion engine includes at least one cylinder having an intake manifold and at least one methane and hydrogen injection device.

Systems, methods, and apparatuses are disclosed that determine, while the engine is operating with base fuel amount at an air-fuel ratio at or above an air-fuel ratio minimum limit, a post injection condition in response to one or more engine operating parameters. In response to the post injection condition being present, a main injection fuel amount and a post injection fuel amount for combustion in the one or more combustion chambers are determined that, when combined, is at or above the air-to-fuel ratio minimum limit. A main spark timing and, if needed, a post spark timing to fully combust the main and post injection fuel amounts in the combustion chamber are also determined.

Unleaded aviation gasoline. An aviation gasoline fuel blend includes an unleaded aviation gasoline base fuel, with an effective amount of selected alkyl benzenes to improve the functional engine performance to avoid harmful detonation sufficient to meet or exceed selected standards for detonation performance requirements in full scale aircraft piston spark ignition engines designed for use with Grade 100LL avgas. Suitable alkylated benzenes may include a mixture of xylene isomers. Aromatic amines, such as m-toluidine, may also be added to increase MON. Base fuels may be a high quality aviation alkylate, or may be a commercial iso-octane, or a mixture of high quality aviation alkylate enhanced by iso-octane, or by commercial iso-octane mixtures, and may include iso-pentane or butane or both iso-pentane and butane in sufficient quantity to provide appropriate vapor pressure for the final fuel blend.

On the basis of determining the first ethanol ratio value (RATE) obtained with a positive or negative uncertainty of x%, a corrected ratio value (RATEcorr) is determined by subtracting x% from the first value (RATE), and for each point in the zone, the concentration set point on the thermal protection zone is adjusted to a value corresponding to the corrected ratio.

A method for controlling a powertrain comprising a spark-ignition internal combustion engine (102), the method comprising the following steps: a) determining a fuel dilution ratio of the oil, b) determining a maximum difference between a torque generated by one of the cylinders and an average torque (Cmoy) generated by all the cylinders, c) determining an oil temperature, and d) implementing compensation for torque dispersions between the cylinders, step d) being activated when the following conditions are met: - the fuel dilution ratio of the oil determined in step a) is greater than a predetermined threshold value, - the maximum torque difference determined in step b) is greater than a predetermined threshold value (x), and - the oil temperature determined in step c) is greater than a predetermined threshold value. Figure for abstract: Fig 4