VERSTELLBARE LASCHE FÜR ZERBROCHENE SCHEERBÄUME

Flexible fuel generator and methods of use thereof

Improvements with the combustion engines

Simultaneous combustion of liquid and gaseous fuels in a compression-ignition engine

A method of simultaneously combusting a liquid fuel 12 and a gaseous fuel 18 in a standard direct injection compression ignition engine 20 is disclosed. The gaseous fuel 18 is mixed with oxygen rich air and the resulting gas mixture is used as the combustion atmosphere inside the engine 20. The combustion method allows poor quality, low calorific gaseous fuels to be burned efficiently in a standard compression ignition engine 20 without having to de-rate the power output of the engine. The oxygen concentration in the gas mixture may be 22-28%. The oxygen and gaseous fuel may be mixed in proportions depending on the calorific value of the gaseous fuel. The gaseous fuel may be a fossil fuel, eg mine gas, or a non-fossil fuel, eg digester gas or landfill gas. The liquid fuel may be a fossil fuel, eg diesel gas oil or petroleum, or a non-fossil fuel from a renewable source, eg vegetable oil, animal fat or a blend of bioethanol and vegetable oil. The gaseous fuel and the liquid fuel may de derived ...

Operating process of internal combustion engines, fuel injection, the diesel engines

Druckluftverbrennungskraftmaschine

COLD-START FOR HIGH-OCTANE FUELS IN A DIESEL ENGINE ARCHITECTURE

Embodiments disclosed herein relate generally to systems and methods of operating internal combustion (IC) engines, and more specifically to systems and methods of starting compression ignition (CI) engines when the surrounding environment is significantly colder than the normal operating temperature of the engine (i.e., "cold-starting"). In some embodiments, the CI engine can include an ignition-assist device. In some embodiments, a method of operating a CI engine during cold-start can include opening an intake valve to draw a volume of air into the combustion chamber, moving a piston from a bottom-dead-center position to a top-dead-center position in a combustion chamber at a compression ratio of between about 15 and about 25, injecting a volume of fuel, the fuel having a cetane number of less than about 30, closing the intake valve, and combusting substantially all of the volume of fuel.

COMPRESSION IGNITION INITIATION DEVICE AND INTERNAL COMBUSTION ENGINE USING SAME

An internal combustion engine (10) having a compression ignition initiation device (20) is provided. The compression ignition initiation device (20) includes a body (21) defining a chamber (34) and an outlet (36) from the chamber (34). The device (20) further includes means, within the chamber (34), for generating a combustion initiating shock front from the outlet (36). A method is provided, including compressing a mixture of fuel and air in an internal combustion engine cylinder (18) to a point less than a compression ignition threshold, and initiating ignition of the mixture by subjecting it to a shock front.

Improvements in the method of ignition of explosive mixtures

... 249,270. Wolstenholme, O. S. Feb,. 2. 1925. Non-electric ignition; tubes. - A portion of the mixture is drawn through a perforation into a tube of highly-refractory material such as silica a and is ignited therein by the heat due to its sudden compression by a plunger b actuated by a cam, eccentric, or other means. A ball c made of the same material as the tube, may partially close the perforation, and the plunger may be hollowed out to fit the ball.

RECIPROCAL MECHANISM FOR CONVERSION BETWEEN ROTATIONAL MOVEMENT AND TRANSLATIONAL RECIPROCATING MOVEMENT, MECHANICAL SYSTEM AND VEHICLE

Driving machine with combustion interns with compression of the load outside to the drive roll

FLEX FUEL FIELD GENERATOR

A generator system includes (i) an internal combustion engine, (ii) an exhaust gas outlet, connected to the internal combustion engine, for venting exhaust gasses, and (iii) a condenser, connected to the exhaust gas outlet, for condensing water from exhaust gasses.

Simultaneous combustion of liquid and gaseous fuels in an engine

Internal combustion engine

METHOD FOR IGNITING BY COMPRESSION A GASEOUS MIXTURE IN AN INTERNAL COMBUSTION ENGINE, AND ENGINE IMPLEMENTING SUCH METHOD

Ignition of an air/fuel mixture by compression heating, while eliminating the detonation risk, even with relatively volatile fuels. While atmospheric air is sucked (manifold (38)) into a chamber (35) of a cylinder (31), a mixture rich of fuel and air compressed at a moderate ratio is introduced (conduit (41)) into a prechamber (33). Said prechamber is connected to the cylinder by means of a conduit which is cyclically open and closed by an obturation member (57). At the end of the compression phase, air heated by compression to a high temperature is introduced into the prechamber (33) by means of a rotary distributor (50) and causes the ignition of the mixture. At that time, the obturation member establishes a communication between both chambers (33 and 35) and the combustion is completed in the cylinder (31). Compressed air is provided by means of a compressor which is driven by the engine shaft. It is possible to adapt the engine to various fuels, particularly diesel, and it is possible ...

Flexible fuel generator and methods of use thereof

Internal combustion engine

HYBRID COMBUSTION IN A DIESEL ENGINE

A compression ignition engine ( 10 ) has a control system ( 40 ), one or more combustion chambers ( 12 ), and fuel injectors ( 42, 44 ) for injecting fuel into the combustion chambers. The control system controls fueling using a result of the processing of engine speed and engine load to select a particular domain for engine operation (HCCI, HCCI+CD, or CD,—FIG. 1 ). When the processing selects HCCI, the engine is fueled to cause alternative diesel combustion (such as HCCI) in all combustion chambers. When the processing selects CD, all combustion chambers are fueled for conventional diesel combustion. When the processing selects HCCI+CD, a first group of combustion chambers are fueled for HCCI combustion and a second group for CD combustion. Each group (G 1 , G 2 ) has its own EGR valve ( 34, 38 ) and turbocharger ( 22, 24 ).

Method to increase the output of the internal combustion engines

MUTUAL CONVERSION BETWEEN A MECHANISM FOR ROTATIONAL AND TRANSLATIONAL RECIPROCATING MOVEMENT, MECHANICAL SYSTEM AND VEHICLE

L'invention concerne un mécanisme (10) de conversion réciproque entre un mouvement de rotation et un mouvement alternatif de translation. Le mécanisme (10) comprend un dispositif (20) pivotant autour d'un axe principal (X20) et un dispositif (30) coulissant suivant un axe de translation (Y30) orthogonal à l'axe principal. Le mécanisme (10) comprend à la fois : une bielle (40) pivotant, d'une part, autour d'un premier axe (X40) parallèle à l'axe principal et solidaire du dispositif pivotant (20), avec un entraxe (E40) constant entre ce premier axe (X40) et l'axe principal et, d'autre part, autour d'un deuxième axe parallèle à l'axe principal et solidaire du dispositif coulissant (30), avec le même entraxe (E40) constant entre le premier axe et le deuxième axe ; et un engrenage (50) comprenant deux ensembles dentés (60, 70). Le premier ensemble denté (60) est solidaire du dispositif pivotant (20), centré sur le premier axe et présente un premier diamètre de base égal au double de l'entraxe. Le deuxième ensemble denté (70) est solidaire du dispositif coulissant (30), centré sur le deuxième axe et présente un deuxième diamètre de base égal au double du premier diamètre de base. L'invention concerne également un système mécanique et un véhicule.

Hybrid combustion in a diesel engine

A compression ignition engine (10) has a control system (40), one or more combustion chambers (12), and fuel injectors (42, 44) for injecting fuel into the combustion chambers. The control system controls fueling using a result of the processing of engine speed and engine load to select a particular domain for engine operation (HCCI, HCCI+CD, or CD, -FIG. 1). When the processing selects HCCI, the engine is fueled to cause alternative diesel combustion (such as HCCI) in all combustion chambers. When the processing selects CD, all combustion chambers are fueled for conventional diesel combustion. When the processing selects HCCI+CD, a first group of combustion chambers are fueled for HCCI combustion and a second group for CD combustion. Each group (G1, G2) has its own EGR valve (34, 38) and turbocharger (22, 24).

Zweitaktbrennkraftmaschine

Improvements in or connected with internal combustion engines

... 189,225. MacDonald, J. D. Aug. 25, 1921. Two-stroke cycle engines; pumps; cylinders, ports of.-A double-acting air pump B supplies a reservoir G; the pump and power cylinders are connected at their centres by a port D, to allow a part of the combustion products to flow into the pump chamber at the end of the pump suction stroke and raise the initial pressure of the air in the pump. On the return or compression stroke of the power piston, the exhaust valve is closed to trap a part of the products; the air charge admitted from the reservoir is largely in excess of the amount required for combustion, so that the products contain a high proportion of air. The trapped products are compressed and fuel is injected into them and ignited by the heat of compression. At about oneseventh of the power stroke, air is admitted to the power cylinder from the reservoir, and a second injection of fuel is burnt with this air. The port D, Fig. 8, may be tangential in both the power and pump cylinders, and ...

Improvements in or relating to internal combustion engines

... 253,018. Haddan, R., (Acro Akt.-Ges.). April 3, 1925. Cylinders receiving liquid fuel. - In engines working with self-ignition of fuel injected under pressure and having at least two cylinders a, b connected bv a duct or ducts k through which or through one of which, towards the latter part of the compression stroke, air is expelled from the combustion space h of one cylinder to that i of another, the duct is provided with a constriction m and the fuel injection device n is so disposed that the stream of transferred air carries fuel through the constriction. The fuel injection may take place in front of the constriction and even in the space h but at the latest it must encounter the air stream whilst passing the constriction. An additional fuel inlet may be provided, for example, at o. The invention is applicable to engines with cylinders parallel to or in line with each other.

Flexible fuel generator and methods of use thereof

A portable flexible fuel generator, having an engine, includes: a cylinder and a spark plug in the cylinder, a primary fuel tank fluidly connected to the cylinder, an air intake path fluidly connecting atmosphere to the cylinder, a start module including a starting fuel tank holder and a starting fuel line, where the starting fuel line is fluidly connected to the air intake path, a coolant path which provide a flow path for coolant to cool the cylinder, and a thermal controller along the coolant path. Furthermore, the engine has full cylinder cooling.

Flexible fuel generator and methods of use thereof

FLEXIBLE FUEL GENERATOR AND METHODS OF USE THEREOF

A portable flexible fuel generator, having an engine, includes: a cylinder and a spark plug in the cylinder, a primary fuel tank fluidly connected to the cylinder, an air intake path fluidly connecting atmosphere to the cylinder, a start module including a starting fuel tank holder and a starting fuel line, where the starting fuel line is fluidly connected to the air intake path, a coolant path which provide a flow path for coolant to cool the cylinder, and a thermal controller along the coolant path. Furthermore, the engine has full cylinder cooling.

System of internal combustion engine

New engine of traction to internal combustion

Compression ignition initiation device and internal combustion engine using same

An internal combustion engine having a compression ignition initiation device is provided. The compression ignition initiation device includes a body defining a chamber and an outlet from the chamber. The device further includes means, within the chamber, for generating a combustion initiating shock front from the outlet. A method is provided, including compressing a mixture of fuel and air in an internal combustion engine cylinder to a point less than a compression ignition threshold, and initiating ignition of the mixture by subjecting it to a shock front.

Fuel injection for IC engine

The main fuel requirement for the cylinder is injected directly into the cylinder by a main jet (32). Additional jets (34,36,38) are fed with a secondary fuel feed. The secondary fuel feed is heated and pressurised to produce fuel vapour injected into the cylinder. The pressure and temperature are such that on meeting oxygen the fuel vapour ignites spontaneously and provides and ignites the main fuel feed. The fuel heating uses electrically heated rods in the fuel feed to heat the fuel up to 600 deg.C. The heating can be in stages, with the last stage on the cylinder side of the jets. Each fuel vapour jet produces a burn area in a preset position in area of the main fuel jet to produce an even burn.

INTERNAL COMBUSTION ENGINE

FLEXIBLE FUEL GENERATOR AND METHODS OF USE THEREOF

A portable flexible fuel generator, having an engine, includes: a cylinder and a spark plug in the cylinder, a primary fuel tank fluidly connected to the cylinder, an air intake path fluidly connecting atmosphere to the cylinder, a start module including a starting fuel tank holder and a starting fuel line, where the starting fuel line is fluidly connected to the air intake path, a coolant path which provide a flow path for coolant to cool the cylinder, and a thermal controller along the coolant path. Furthermore, the engine has full cylinder cooling.

Internal combustion engine with automatic adjustment of the one of the components of the load

Internal-combustion engine

Improvements in Internal Combustion Engines.

... 128,686. Lanchester, F. W. April 18, 1918. Regulating; valves; valve-gear.- In a two-stroke engine in which a charge of air is transferred from a pump cylinder a through exhaustheated tubes g to a power cylinder b into which fuel is injected, the passage of air to and from the pump cylinder is controlled by piston valves c actuated by a cam, c<2>. The air supply is controlled by a piston valve in the casing d, which is actuated from an eccentric controlled by a centrifugal governor arranged to advance the eccentric and time the cut-off. The exhaust valve e on the power cylinder is a beat valve actuated from an eccentric or cam by means of a rocker lever and abutment bar or other means. In a modification, Fig. 5, the cover k of the pump cylinder has a ring of air-admission ports, each fitted with a lift valve n', which is normally closed by a spring n<5> and is actuated by the difference of pressure on opposite sides of its head, as described in Specification 127,687. The valves carry balance ...

EARLY ENTRY

Benzin-Luft-Zündung

In den Brennraum eines mit Benzin betriebenen Ottomotors wird Luft bei hohem Druck (30 Pa) eingeblasen. Weil diese Luft beim Austritt aus dem Einspritzrohr einen hohen Druck hat und somit den Selbstzündungsdruck von Benzin überschreitet, entzündet sich das Benzin in der Umgebung der eingespritzten Luft. Die Strömung der eingeblasenen Luft darf nicht zu stark sein, damit sie die Flamme nicht wieder löscht und damit sie das brennbare Benzin-Luft-Gemisch nicht verdrängt. Anschließend breitet sich das entflammte Kraftstoff-Luft-Gemisch im ganzen Brennraum des Ottomotors aus.

CONTROL SYSTEM OF COMPRESSION IGNITION TYPE INTERNAL COMBUSTION ENGINE

An action of injection of the main injection fuel (QM) from the fuel injector () is started within a range of crank angle from degree before the compression top dead center to degree after the compression top dead center. A smaller amount of the auxiliary injection fuel (QN) than the main injection fuel (QM) is made to be injected from the fuel injector () before the main injection fuel (QM) so as to make the auxiliary injection fuel (QN) ignite by the premixed charge compression ignition. The injection timing of the auxiliary injection fuel (QN) is controlled to a timing whereby a heat generated by the premixed charge compression ignition of the auxiliary injection fuel (QN) causes the premixed charge compression ignition of the main injection fuel (QM) after the start of injection of the main injection fuel (QM). 1. A control system of a compression ignition type internal combustion engine comprising a fuel injector arranged in a combustion chamber and an electronic control unit controlling a fuel injection action from the fuel injector , a main injection fuel injected from the fuel injector being ignited by a premixed charge compression ignition , whereinsaid electronic control unit is configured to start an injection of the main injection fuel from the fuel injector within a range of crank angle from 10 degree before the compression top dead center to 10 degree after the compression top dead center and make a smaller amount of auxiliary injection fuel than the main injection fuel be injected from the fuel injector before the main injection fuel to ignite the auxiliary injection fuel by the premixed charge compression ignition, andsaid electronic control unit is further configured to control an injection timing of the auxiliary injection fuel to an injection timing whereby the premixed charge compression ignition of the main injection fuel is caused by a heat generated by the premixed charge compression ignition of the auxiliary injection fuel after a start of ...

HYBRID COMBUSTION IN A DIESEL ENGINE

A compression ignition engine ( 10 ) has a control system ( 40 ), one or more combustion chambers ( 12 ), and fuel injectors ( 42, 44 ) for injecting fuel into the combustion chambers. The control system controls fueling using a result of the processing of engine speed and engine load to select a particular domain for engine operation (HCCI, HCCI+CD, or CD,-FIG. 1 ). When the processing selects HCCI, the engine is fueled to cause alternative diesel combustion (such as HCCI) in all combustion chambers. When the processing selects CD, all combustion chambers are fueled for conventional diesel combustion. When the processing selects HCCI+CD, a first group of combustion chambers are fueled for HCCI combustion and a second group for CD combustion. Each group (G 1 , G 2 ) has its own EGR valve ( 34, 38 ) and turbocharger ( 22, 24 ).

CONTROL DEVICE FOR ENGINE

A control device for controlling an engine provided with a fuel pump including a pressurizing chamber, a plunger inserted into the pressurizing chamber and which changes a volume of the pressurizing chamber, and an on-off valve configured to open and close a suction port, is provided. When a pressurizing cycle consists of a period of pressurizing stroke in which the volume of the pressurizing chamber is reduced to allow fuel to be pressurized and a period of suction stroke in which the volume of the pressurizing chamber is increased to allow fuel to be drawn into the pressurizing chamber, a closing cycle of the on-off valve is controlled so that a ratio of the closing cycle to the pressurizing cycle becomes smaller in a second combustion mode where a partial compression-ignition combustion is performed than in a first combustion mode where SI combustion is performed.

EXHAUST CONTROLLER FOR 2-CYCLE ENGINE

PURPOSE: To improve the output characteristic with in the wide range of an engine by shifting the operation revolution speed range for an opening and closing valve for sub exhaust hole of a 2-cycle engine and an opening and closing valve for resonator chamber for exhaust pulsation. CONSTITUTION: A resonator chamber 18 is arranged contiguously in the vicinity of the port of the exhaust hole 6 of a 2-cycle engine, and an opening and closing valve 19 is installed into the connection part. A sub exhaust hole 15 is formed onto the both sides of the exhaust hole 6, and each opening and closing valve 16 is installed into the passages. The opening and closing valve 19 is closed at the first set revolution speed for the lower engine revolution speed, and the opening and closing valve 16 is opened at the second set revolution speed higher than the first set revolution speed. Since the opening and closing valve 16 is closed when the revolution speed is below the first set revolution speed, exhaust ...

Verdichtungszündungseinleitungsvorrichtung und Verbrennungsmotor, der diese verwendet

Verdichtungszündungseinleitungsvorrichtung (20) für einen Verbrennungsmotor (10), die Folgendes aufweist: einen Körper (21), der eine Kammer (34) und einen Auslass (36) aus der Kammer (34) definiert; und Mittel in der Kammer (34) zur Erzeugung einer verbrennungseinleitenden Schock- bzw. Stoßfront aus dem Auslass (36).

ARBEITSVERFAHREN UND AUSFÜHRUNGSART FÜR VERBRENNUNGSKRAFTMASCHINEN

Druckluftbrennkraftmaschine

Druckluftverbrennungskraftmaschine

Spool shuttle crossover valve in split-cycle engine

Verbrennungskraftmaschine

Spool shuttle crossover valve and combustion chamber in split-cycle engine

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders.

AN IMPROVED AMMONIA BASED FUEL FOR ENGINES

A fuel formulation comprising a sugar and ammonia solution, wherein the sugar and ammonia are present in a combined amount of greater than 70 percent by weight of the fuel formulation, and wherein the sugar comprises fructose, glucose, sucrose or a combination thereof. 1. A fuel formulation comprising a solution of a sugar component and liquid anhydrous ammonia , wherein the sugar component and liquid anhydrous ammonia are present in a combined amount of greater than 70 percent by weight of the fuel formulation , and wherein the sugar component comprises fructose , glucose , sucrose or a combination thereof.2. A fuel formulation according to claim 1 , wherein the ratio of sugar to liquid anhydrous ammonia is in the range 0.01:1 to 2:1 w/w.3. A fuel formulation according to claim 1 , wherein the ratio of sugar to liquid anhydrous ammonia is in the range 0.1:1 to 1.5:1 w/w claim 1 , preferably 0.1:1 to 1:1 claim 1 , and yet more preferably 0.2:1 to 0.8:1 w/w.4. A fuel formulation according to claim 1 , wherein the solution comprises the sugar component dissolved in liquid anhydrous ammonia.5. A fuel formulation according to claim 1 , further comprising one or more additives selected from at least one of: water claim 1 , ammonium nitrate claim 1 , an alcohol claim 1 , a lubricant claim 1 , a picrate claim 1 , a permanganate claim 1 , or a peroxide.6. A fuel formulation according to claim 5 , wherein the one or more additives comprise water claim 5 , ammonium nitrate claim 5 , potassium permanganate claim 5 , iron picrate claim 5 , hydrogen peroxide claim 5 , ethanol claim 5 , methanol claim 5 , or a paraffinic oil.7. A compression ignition engine fuel comprising the fuel formulation according to .8. A method of operating a compression ignition engine or an Otto type engine using a fuel formulation according to claim 1 , comprising injecting the fuel formulation into the engine for combustion.9. A method according to claim 8 , wherein the fuel formulation is injected ...

Verdichtungszündungseinleitungsvorrichtung und Verbrennungsmotor, der diese verwendet

Eine Verdichtungszündeinleitungsvorrichtung (20) für einen Verbrennungsmotor (10), die Folgendes aufweist:einen Körper (21), der eine Kammer (34) und einen Auslass (36) aus der Kammer (34) definiert,wobei der Körper (21) ferner ein Kraftstoffeinlass (33) gesondert von dem Auslass (36) aufweist, der ausgebildet ist um einen Kraftstoff an die Kammer (34) zu liefern undMittel in der Kammer (34) zur Erzeugung einer verbrennungseinleitenden Stoßfront aus dem Auslass (36) durch die Verbrennung eines relativ reaktionsfreudigeren Kraftstoffs mit Luft, die sich nach außen vom Auslass (36) fortpflanzt, um eine stöchiometrisch magere Mischung, bestehend aus einem relativ weniger reaktionsfreudigeren Kraftstoff und Luft im Motorzylinder (18) kompressions zu zünden,und zwar beginnend am erwähnten Auslass (36), an welchem ein Kompressionszustand herrscht, der geringer ist als die Kompressionszündungsschwelle.

Verfahren zum Betreiben einer flammgezündeten Brennkraftmaschine

Verfahren zum Betreiben einer flammgezündeten Brennkraftmaschine, mit einer eine Hauptkraftstoffmenge zur Verfügung stellenden Einspritzdüse und einer weiteren entflammbaren Zündkraftstoff geringerer Menge in den Brennraum einbringenden Düse, dadurch gekennzeichnet, daß der Hauptkraftstoff ebenfalls direkt in den Brennraum (10) eingespritzt wird und daß der Zündkraftstoff in der zumindest einen weiteren Düse (34, 36, 38) stark erhitzt und unter Überdruck in Dampfform und ein definiertes Zündfeld (40, 42, 44) bildend eingeblasen wird. method to operate a flame-ignited Internal combustion engine, with one main fuel amount providing injection and a further ignitable igniter fuel of lesser amount into the combustion chamber introducing nozzle, characterized in that the Main fuel also injected directly into the combustion chamber (10) and that the pilot fuel in the at least one further nozzle (34, 36, 38) strongly heated and under overpressure in vapor form and forming a defined ignition field (40, 42, 44) blown.

REPEATEDLY USED HEATING EXPANSION SYSTEM ENABLING INTERNAL FLUID TO CIRCULATE, APPARATUS TO FORM SAME AND ENGINE TO REALIZE SAME AND FACILITY TO UTILIZE SAME

The present invention relates to a configuration of a repeatedly used heating expansion system enabling an internal fluid to circulate, an apparatus to form the same, an engine to realize the same, and a facility to utilize the same. The heating expansion system relates to a technology used continuously by enabling a fluid to circulate, and repeating a volume expansion included in a machinery sector related to a power facility. There is a limit in a process to sufficiently secure power required in everyday life and in industries to develop the technology related to a method in realizing heating and expansion to be capable of safely securing sufficient power to provide data required in technological developments and in academic research related to the heating expansion system. The purpose of an expansion power engine realizing the heating expansion system is to reduce environmental pollution due to discharge of a combustion material, and to provide essential technology to develop a technology ...

Druckluftbrennkraftmaschine

Heat release rate waveform generating device and combustion state diagnostic system for internal combustion engine

In a diesel engine, an inside of a cylinder is divided into intra-cavity and extra-cavity regions. Ideal heat release rate waveform models, each formed of an isosceles triangle in which each oblique line gradient is a reaction rate, an area is a reaction amount and a base length is a reaction period with a reaction start temperature as a base point, are generated respectively for a vaporization reaction, low-temperature oxidation reaction, thermal decomposition reaction and high-temperature oxidation reaction of injected fuel for each region. An ideal heat release rate waveform of the reaction modes is generated by smoothing the ideal heat release rate waveform models through filtering and combining the ideal heat release rate waveforms, and is compared with an actual heat release rate waveform obtained from a detected in-cylinder pressure. A reaction mode having a deviation larger than or equal to a predetermined amount is diagnosed as being abnormal.

Arbeitsverfahren fuer Einspritzbrennkraftmaschinen, insbesondere fuer solche zum Betrieb von OElmotorlokomotiven

Druckluftbrennkraftmaschine mit veraenderlichem Fuellungsgrad

Arbeitsverfahren fuer Verbrennungskraftmaschinen, insbesondere Dieselmaschinen, die mit verdichteter und durch Verbrennungsgase erhitzter Verbrennungsluft betrieben werden

Hybrid combustion control method of internal combustion engine and controller thereof, internal combustion engine, and automobile

本發明公開了一種內燃機混合燃燒控制方法及其控制器、內燃機和汽車。所述方法包括：內燃機啟動時採用點燃式燃燒控制，使用渦輪增壓裝置提高氣缸進氣溫度和進氣壓力；內燃機運行時採用非均質壓燃式燃燒控制；內燃機處於壓燃模式運行時，除發動機熄火操作外，節氣門全部打開，不對渦輪增壓裝置進行尾氣泄壓控制，利用渦輪增壓裝置，提高充氣量，提高氣缸壓縮行程末端燃燒室溫度和壓力；內燃機在低負荷時，或者不能通過水箱溫度和節氣門後進氣壓力確定具備壓燃點火條件時，將燃燒控制模式從點燃向壓燃轉換，如果可以順利進入壓燃狀態，則維持壓燃燃燒控制模式，如果不能順利進入壓燃狀態，發動機轉速不正常降低，則迅速恢復點燃燃燒控制模式。

CONTROL SYSTEM OF COMPRESSION-IGNITION ENGINE

A control system of a compression-ignition engine is provided, which includes an engine configured to cause combustion of a mixture gas inside the combustion chamber, an injector attached to the engine and configured to inject fuel into the combustion chamber, a spark plug disposed to be oriented into the combustion chamber and configured to ignite the mixture gas inside the combustion chamber, and a controller connected to the injector and the spark plug and configured to operate the engine by outputting a control signal to the injector and the spark plug, respectively. After the spark plug ignites the mixture gas to start combustion, unburned mixture gas combusts by self-ignition. The controller outputs the control signal to the injector so that a fuel injection timing is advanced when the engine operates at a high speed than at a low speed. 1. A control system of a compression-ignition engine , comprising:an engine configured to cause combustion of a mixture gas inside the combustion chamber;an injector attached to the engine and configured to inject fuel into the combustion chamber;a spark plug disposed to be oriented into the combustion chamber and configured to ignite the mixture gas inside the combustion chamber; anda controller, operatively connected to the injector and the spark plug, comprising a processor configured to operate the engine by outputting a control signal to the injector and the spark plug, respectively, whereinafter the spark plug ignites the mixture gas to start combustion, unburned mixture gas combusts by self-ignition, andthe controller outputs the control signal to the injector so that a fuel injection timing is advanced when the engine operates at a high speed than at a low speed that is lower than the high speed.2. The control system of claim 1 , whereinthe controller outputs the control signal to the injector to perform a first-stage injection and a second-stage injection that is at a later timing than the first-stage injection, ...

스플릿-사이클 엔진의 스풀 셔틀 크로스오버 밸브

... 스플릿-사이클 엔진은: 제 1 피스톤을 수용하는 제 1 실린더로서, 상기 제 1 피스톤은 흡기 행정 및 압축 행정을 수행하지만 배기 행정을 수행하지 않는, 제 1 실린더; 제 2 피스톤을 수용하는 제 2 실린더로서, 상기 제 2 피스톤은 팽창 행정 및 배기 행정을 수행하지만 흡기 행정을 수행하지 않는 제 2 실린더; 밸브를 수용하는 밸브 챔버로서, 상기 밸브는 제 1 실린더 및 제 2 실린더에 선택적으로 유체적으로 커플링하는 내부 챔버를 더 포함하는, 밸브 챔버를 포함하고, 상기 밸브 및 내부 챔버는 밸브 챔버 내에서 그리고 제 1 실린더 및 제 2 실린더에 대해 상대적으로 이동한다.

Gleichdruckmaschine

HYBRID COMBUSTION MODE OF INTERNAL COMBUSTION ENGINE AND CONTROLLER THEREOF, INTERNAL COMBUSTION ENGINE, AND AUTOMOBILE

A method for achieving a hybrid combustion mode of an internal combustion engine, a controller thereof, and an internal combustion engine. The hybrid combustion mode of an internal combustion engine comprises: directly injecting fuel in a cylinder; using homogeneous charge compression ignition combustion mode when the internal combustion engine is run; and when the internal combustion engine is low in load, or when it cannot be determined, that a compression ignition condition is met, switching a combustion control mode from ignition to compression ignition, if a compression ignition state can be switched to smoothly, maintaining the compression ignition combustion mode, and if the compression ignition state cannot be switched to smoothly and therefore the rotation speed of the engine decreases abnormally, quickly recovering the ignition combustion control mode. Cool start of low-octane gasoline internal combustion engine in a low-temperature environment can be implemented.

Verbrennungsmotor, Steuer- bzw. Regelsystem dafür, Verfahren zum Steuern eines Motors und Computerprogrammprodukt

Bereitgestellt wird ein Steuer- bzw. Regelsystem eines Kompressionszündungsmotors, enthaltend einen Motor, der konfiguriert ist, eine Verbrennung eines Gasgemischs innerhalb der Brennkammer zu bewirken, einen Injektor, der an dem Motor angebracht ist und konfiguriert ist, Kraftstoff in die Brennkammer einzuspritzen, eine Zündkerze, die angeordnet ist, in die Brennkammer hinein ausgerichtet zu sein, und die konfiguriert ist, das Gasgemisch innerhalb der Brennkammer zu zünden, und einen Controller, der mit dem Injektor und der Zündkerze verbunden ist und konfiguriert ist, den Motor durch Ausgeben eines Steuer- bzw. Regelsignals an den Injektor bzw. die Zündkerze zu betreiben. Nachdem eine Zündkerze das Gasgemisch zum Starten der Verbrennung entzündet, verbrennt unverbranntes Gasgemisch durch Selbstzündung. Der Controller gibt das Steuer- bzw. Regelsignal an den Injektor aus, so dass ein Kraftstoffeinspritzzeitpunkt vorverlegt wird, wenn der Motor mit einer hohen Drehzahl gegenüber einer niedrigen ...

KOLBEN FÜR KOMPRESSIONSZÜNDUNGSMOTOR MIT EINER VORMULDE UND MOTORBETRIEBSSTRATEGIE, DIE DENSELBEN EINSETZT

Ein kompressionsgezündeter Direkteinspritzungs-Verbrennungsmotor (12) beinhaltet ein Motorgehäuse (22) mit einem Zylinder (24) und einem Kolben (38), der innerhalb des Zylinders (24) beweglich ist und eine Kolbenendfläche (52) beinhaltet, die eine Brennraummulde (54) bildet. Die Kolbenendfläche (52) weist eine ringförmige Kolbeneinfassung (76) mit einer abgerundeten inneren Einfassungsoberfläche (82) auf, die sich radial nach innen und axial nach unten von einer flächigen äußeren Einfassungsoberfläche (78) bis zu einem Brennraummuldenrand (72) erstreckt. Eine Vormulde (84) ist durch die abgerundete innere Einfassungsoberfläche (82) definiert und weist ein Vormuldenvolumen auf, das etwa 0,8 % oder mehr eines Gesamtvolumens der Brennraummulde (54) und der Vormulde (84) zusammen beträgt. Eine Konfiguration und die dimensionalen Attribute der Vormulde (84) stehen mit verringerter Rauchentwicklung während des Betriebs in Zusammenhang, insbesondere für niedrige bis mittlere Last transienten.

Spool shuttle crossover valve and combustion chamber in split-cycle engine

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders.

Thermal ignition combustion system

The thermal ignition combustion system comprises means for providing walls defining an ignition chamber, the walls being made of a material having a thermal conductivity greater than 20 W/m° C. and a specific heat greater than 480 J/kg° C. with the ignition chamber being in constant communication with the main combustion chamber, means for maintaining the temperature of the walls above a threshold temperature capable of causing ignition of a fuel, and means for conducting fuel to the ignition chamber.

Gemischverdichtende Brennkraftmaschine, bei der zur Zuendung des verdichteten Brennstoff-Luft-Gemisches dem Arbeitszylinder ein hocherhitzter Ladeteil zugefuehrt wird

COMPRESSION IGNITION INITIATION DEVICE AND INTERNAL COMBUSTION ENGINE USING SAME

An internal combustion engine having a compression ignition initiation device is provided. The compression ignition initiation device includes a body defining a chamber and an outlet from the chamber. The device further includes means, within the chamber, for generating a combustion initiating shock front from the outlet. A method is provided, including compressing a mixture of fuel and air in an internal combustion engine cylinder to a point less than a compression ignition threshold, and initiating ignition of the mixture by subjecting it to a shock front.

Systems and methods for in-cylinder fuel dosing for exhaust aftertreatment system thermal management

An apparatus comprises a first circuit and a second circuit. The first circuit is structured to determine that a combustion cylinder is operating in a transition period between an exhaust stroke and an intake stroke of the combustion cylinder. The second circuit is structured to provide an injection command during the transition period to a fuel injector associated with the combustion cylinder, the injection command being to inject fuel into a combustion chamber of the combustion cylinder such that at least a portion of the fuel escapes from the combustion chamber through an exhaust port of the combustion cylinder.

Thermal ignition combustion system

The thermal ignition combustion system comprises means for providing walls defining an ignition chamber, the walls being made of a material having a thermal conductivity greater than 20 W/m° C. and a specific heat greater than 480 J/kg° C. with the ignition chamber being in constant communication with the main combustion chamber, means for maintaining the temperature of the walls above a threshold temperature capable of causing ignition of a fuel, and means for conducting fuel to the ignition chamber.

SYSTEMS AND METHODS FOR IN-CYLINDER FUEL DOSING FOR EXHAUST AFTERTREATMENT SYSTEM THERMAL MANAGEMENT

An apparatus comprises a first circuit and a second circuit. The first circuit is structured to determine that a combustion cylinder is operating in a transition period between an exhaust stroke and an intake stroke of the combustion cylinder. The second circuit is structured to provide an injection command during the transition period to a fuel injector associated with the combustion cylinder, the injection command being to inject fuel into a combustion chamber of the combustion cylinder such that at least a portion of the fuel escapes from the combustion chamber through an exhaust port of the combustion cylinder. 1. An apparatus , comprising:a first circuit structured to determine when a combustion cylinder is operating in a transition period between an exhaust stroke and an intake stroke of the combustion cylinder; anda second circuit structured to provide an injection command during the transition period to a fuel injector associated with the combustion cylinder, the injection command being to inject fuel into a combustion chamber of the combustion cylinder such that at least a portion of the fuel escapes from the combustion chamber through an exhaust port of the combustion cylinder.2. The apparatus of claim 1 , wherein an exhaust valve associated with the combustion cylinder is in an open position during the transition period between the exhaust stroke and the intake stroke.3. The apparatus of claim 2 , further comprising a valve circuit structured to selectively actuate the exhaust valve between the open position and a closed position claim 2 ,4. The apparatus of claim 2 , wherein the exhaust valve is actuated between the open position and a closed position by a camshaft of the engine.5. The apparatus of claim 1 , wherein the transition period between the exhaust stroke and the intake stroke is within a range of crank angles of a piston of the combustion cylinder between a first crank angle of about 270 degrees after top-dead-center (ATDC) of the exhaust ...

Internal-combustion engine

Flex fuel field generator

A generator system includes (i) an internal combustion engine, (ii) an exhaust gas outlet, connected to the internal combustion engine, for venting exhaust gasses, and (iii) a condenser, connected to the exhaust gas outlet, for condensing water from exhaust gasses.

FLEXIBLE FUEL GENERATOR AND METHODS OF USE THEREOF

A portable flexible fuel generator, having an engine, includes: a cylinder and a spark plug in the cylinder, a primary fuel tank fluidly connected to the cylinder, an air intake path fluidly connecting atmosphere to the cylinder, a start module including a starting fuel tank holder and a starting fuel line, where the starting fuel line is fluidly connected to the air intake path, a coolant path which provide a flow path for coolant to cool the cylinder, and a thermal controller along the coolant path. Furthermore, the engine has full cylinder cooling.

Control system of compression-ignition engine

A control system of a compression-ignition engine is provided, which includes an engine configured to cause combustion of a mixture gas inside the combustion chamber, an injector attached to the engine and configured to inject fuel into the combustion chamber, a spark plug disposed to be oriented into the combustion chamber and configured to ignite the mixture gas inside the combustion chamber, and a controller connected to the injector and the spark plug and configured to operate the engine by outputting a control signal to the injector and the spark plug, respectively. After the spark plug ignites the mixture gas to start combustion, unburned mixture gas combusts by self-ignition. The controller outputs the control signal to the injector so that a fuel injection timing is advanced when the engine operates at a high speed than at a low speed.

SPOOL SHUTTLE CROSSOVER VALVE AND COMBUSTION CHAMBER IN SPLIT-CYCLE ENGINE

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders. 1. A split-cycle engine comprising:a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke;a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; anda valve cylinder housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move reciprocally within the valve cylinder and relative to the first and second cylinders, and wherein the valve has a port that fluidly couples the internal chamber to the first and second cylinder.2. The engine of claim 1 , wherein claim 1 , during movement of the valve claim 1 , the internal chamber fluidly couples with the first cylinder and fluidly couples with the second cylinder separately.3. The engine of claim 1 , wherein claim 1 , during movement of the valve claim 1 , the internal chamber fluidly couples with the first cylinder and fluidly couples with the second cylinder simultaneously.4. The engine of claim 3 , wherein claim 3 , during movement of the valve claim 3 , the internal chamber fluidly couples with the first cylinder and fluidly couples with the second cylinder simultaneously claim 3 , and wherein the valve and ...

SPOOL SHUTTLE CROSSOVER VALVE IN SPLIT-CYCLE ENGINE

Bir ayrık-çevrimli motor aşağıdakileri içerir; bir birinci pistonu barındıran bir birinci silindir, burada birinci piston bir emme stroku ve bir sıkıştırma stroku gerçekleştirir, ancak bir egzoz strokunu gerçekleştirmez; bir ikinci pistonu barındıran bir ikinci silindir burada ikinci piston bir genleşme strokunu ve bir egzoz strokunu gerçekleştirir, ancak bir emme strokunu gerçekleştirmez ve bir valfi barındıran bir valf haznesi, valf, birinci ve ikinci silindirlere seçici olarak akışkan olarak bağlanan bir iç hazne içerir, burada valf ve iç hazne, valf haznesi içinde ve birinci ve ikinci silindirlere göre hareket eder. A split-cycle engine includes; a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke but not an exhaust stroke; a second cylinder housing a second piston wherein the second piston performs an expansion stroke and an exhaust stroke but does not perform an intake stroke and includes a valve chamber housing a valve, the valve includes an inner chamber that is fluidly connected to the first and second cylinders, where the valve and the inner chamber moves within the valve chamber and relative to the first and second cylinders.

SPOOL SHUTTLE CROSSOVER VALVE AND COMBUSTION CHAMBER IN SPLIT-CYCLE ENGINE

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders. 1. A method of operating a combustion engine comprisingcompressing a working fluid in a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke;transferring the working fluid from the first cylinder to an internal chamber of a valve, wherein the valve is housed in a valve cylinder of the engine; andtransferring the working fluid from the internal chamber to a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke,fluidly coupling the internal chamber to the first and second cylinders, andmoving the valve and internal chamber linearly and reciprocally within the valve cylinder and relative to the first and second cylinders.2. The method of claim 1 , wherein fluidly coupling the internal chamber to the first and second cylinders comprises no simultaneous fluid coupling of the internal chamber claim 1 , the first cylinder claim 1 , and the second cylinder throughout the cycle.3. The method of claim 1 , wherein fluidly coupling the internal chamber to the first and second cylinders comprises fluidly coupling the internal chamber to the first and second cylinder simultaneously.4. The method of claim 1 , wherein the valve and internal chamber comprise a maximum velocity and ...

FLEXIBLE FUEL GENERATOR AND METHODS OF USE THEREOF

A portable flexible fuel generator, having an engine, includes: a cylinder and a spark plug in the cylinder, a primary fuel tank fluidly connected to the cylinder, an air intake path fluidly connecting atmosphere to the cylinder, a start module including a starting fuel tank holder and a starting fuel line, where the starting fuel line is fluidly connected to the air intake path, a coolant path which provide a flow path for coolant to cool the cylinder, and a thermal controller along the coolant path. Furthermore, the engine has full cylinder cooling.

Heat release rate waveform generating device and combustion state diagnostic system for internal combustion engine

Control system of compression ignition type internal combustion engine

An action of injection of the main injection fuel (QM) from the fuel injector (3) is started within a range of crank angle from 10 degree before the compression top dead center to 10 degree after the compression top dead center. A smaller amount of the auxiliary injection fuel (QN) than the main injection fuel (QM) is made to be injected from the fuel injector (3) before the main injection fuel (QM) so as to make the auxiliary injection fuel (QN) ignite by the premixed charge compression ignition. The injection timing of the auxiliary injection fuel (QN) is controlled to a timing whereby a heat generated by the premixed charge compression ignition of the auxiliary injection fuel (QN) causes the premixed charge compression ignition of the main injection fuel (QM) after the start of injection of the main injection fuel (QM).

Cold Start for High-Octane Fuels in a Diesel Engine Architecture

Embodiments disclosed herein relate generally to systems and methods of operating internal combustion (IC) engines, and more specifically to systems and methods of starting compression ignition (CI) engines when the surrounding environment is significantly colder than the normal operating temperature of the engine (i.e., “cold-starting”). In some embodiments, the CI engine can include an ignition-assist device. In some embodiments, a method of operating a CI engine during cold-start can include opening an intake valve to draw a volume of air into the combustion chamber, moving a piston from a bottom-dead-center position to a top-dead-center position in a combustion chamber at a compression ratio of between about 15 and about 25, injecting a volume of fuel, the fuel having a cetane number of less than about 30, closing the intake valve, and combusting substantially all of the volume of fuel.

COLD START FOR HIGH-OCTANE FUELS IN A DIESEL ENGINE ARCHITECTURE

Embodiments disclosed herein relate generally to systems and methods of operating internal combustion (IC) engines, and more specifically to systems and methods of starting compression ignition (CI) engines when the surrounding environment is significantly colder than the normal operating temperature of the engine (i.e., “cold-starting”). In some embodiments, the CI engine can include an ignition-assist device. In some embodiments, a method of operating a CI engine during cold-start can include opening an intake valve to draw a volume of air into the combustion chamber, moving a piston from a bottom-dead-center position to a top-dead-center position in a combustion chamber at a compression ratio of between about 15 and about 25, injecting a volume of fuel, the fuel having a cetane number of less than about 30, closing the intake valve, and combusting substantially all of the volume of fuel. 143-. (canceled)44. A method of operating a compression ignition engine , the compression ignition engine including an engine cylinder having an inner surface , a head surface , a piston disposed and configured to move in the engine cylinder , an intake valve , an exhaust valve , and an ignition-assist device , the inner surface of the engine cylinder , the piston , the head surface , the intake valve , and the exhaust valve defining a combustion chamber , the piston and the head surface defining a bowl region of the combustion chamber , the method comprising the steps of:opening the intake valve to draw a volume of air into the combustion chamber, the volume of air having a mass-average temperature of less than about 150° C. at the moment the volume of air passes through the intake valve;moving the piston from a bottom-dead-center (BDC) position to a top-dead-center (TDC) position in the combustion chamber at a compression ratio of between about 15 and about 25;injecting a volume of fuel at an engine crank angle between 0 and 360 degrees, the fuel having a cetane number of less ...

MACHINE LEARNING FOR MISFIRE DETECTION IN A DYNAMIC FIRING LEVEL MODULATION CONTROLLED ENGINE OF A VEHICLE

Using machine learning for cylinder misfire detection in a dynamic firing level modulation controlled internal combustion engine is described. In a classification embodiment, cylinder misfires are differentiated from intentional skips based on a measured exhaust manifold pressure. In a regressive model embodiment, the measured exhaust manifold pressure is compared to a predicted exhaust manifold pressure generated by neural network in response to one or more inputs indicative of the operation of the vehicle. Based on the comparison, a prediction is made if a misfire has occurred or not. In yet other alternative embodiment, angular crank acceleration is used as well for misfire detection. 1. A vehicle , comprising:an internal combustion engine having a plurality of pistons operating within a plurality of cylinders respectively;a dynamic firing level modulation module arranged to operate the internal combustion engine in a dynamic firing level modulation mode;an exhaust manifold fluidly coupled to outputs of the plurality of pistons and arrange to provide exhaust gases from the plurality of cylinders to an aftertreatment system; anda machine learning module arranged to:(a) receive a measured exhaust manifold pressure signal indicative of the pressure in the exhaust manifold; and(b) detect a misfire of one of the cylinders while operating in the dynamic firing level modulation mode, the machine learning module arranged to detect the misfire of the one cylinder by learning to differentiate between the intentional skipping or modulation of the one cylinder versus an actual misfire of the one cylinder at least partially based on the received measured exhaust manifold pressure signal indicative of the pressure in the exhaust manifold.2. The vehicle of claim 1 , wherein the machine learning module includes a neural network arranged to rely on a first distribution model for exhaust manifold pressure readings for successful cylinder firings and a second distribution model for ...

Internal-combustion engine

MACHINE LEARNING FOR MISFIRE DETECTION IN A DYNAMIC FIRING LEVEL MODULATION CONTROLLED ENGINE OF A VEHICLE

Using machine learning for cylinder misfire detection in a dynamic firing level modulation controlled internal combustion engine is described. In a classification embodiment, cylinder misfires are differentiated from intentional skips based on a measured exhaust manifold pressure. In a regressive model embodiment, the measured exhaust manifold pressure is compared to a predicted exhaust manifold pressure generated by neural network in response to one or more inputs indicative of the operation of the vehicle. Based on the comparison, a prediction is made if a misfire has occurred or not. In yet other alternative embodiment, angular crank acceleration is used as well for misfire detection.

Pre-combustion chamber ignition structure, system and working method thereof

METHOD AND APPARATUS FOR SEQUENTIAL CONTROL OF AIR INTAKE COMPONENTS OF A GAS-FUELED COMPRESSION IGNITION ENGINE

A method of controlling components in an air intake system for an internal combustion engine (10) uses sequential control. The method includes sequentially controlling the operation of a plurality of components (130, 132, 134) of an air intake system to control an excess air ratio for the engine, including identifying a deviation between an actual value of a parameter indicative of an excess air ratio and a desired value, controlling the first component (130) at a first time, and controlling the second component (132) at a second time that is later than the first time. The controlled components may be a turbo air bypass valve and a turbo wastegate valve.

PISTON FOR COMPRESSION-IGNITION ENGINE HAVING ANTEBOWL AND ENGINE OPERATING STRATEGY UTILIZING SAME

A direct-injected compression ignition internal combustion engine includes an engine housing having a cylinder and a piston movable within the cylinder and including a piston end face forming a combustion bowl. The piston end face has an annular piston rim with a rounded inner rim surface that extends radially inward and axially downward from a planar outer rim surface to a combustion bowl edge. An antebowl is defined by the rounded inner rim surface and has an antebowl volume that is about 0.8% or greater of a total volume of the combustion bowl and the antebowl together. A configuration and dimensional attributes of the antebowl is associated with reduced smoke production during operation, particularly for low to mid-load transients.

HEAT RELEASE RATE WAVEFORM GENERATING DEVICE AND COMBUSTION STATE DIAGNOSTIC SYSTEM FOR INTERNAL COMBUSTION ENGINE

In a diesel engine, an inside of a cylinder is divided into intra-cavity and extra-cavity regions. Ideal heat release rate waveform models, each formed of an isosceles triangle in which each oblique line gradient is a reaction rate, an area is a reaction amount and a base length is a reaction period with a reaction start temperature as a base point, are generated respectively for a vaporization reaction, low-temperature oxidation reaction, thermal decomposition reaction and high-temperature oxidation reaction of injected fuel for each region. An ideal heat release rate waveform of the reaction modes is generated by smoothing the ideal heat release rate waveform models through filtering and combining the ideal heat release rate waveforms, and is compared with an actual heat release rate waveform obtained from a detected in-cylinder pressure. A reaction mode having a deviation larger than or equal to a predetermined amount is diagnosed as being abnormal.

Control System Of Compression Ignition Type Internal Combustion Engine

本发明提供一种压燃式内燃机的控制装置。所述压燃式内燃机的控制装置使主喷射燃料稳定地进行预混合压燃。使来自燃料喷射阀(3)的主喷射燃料(QM)的喷射作用在从压缩上止点之前10度起至压缩上止点之后10度为止的曲轴转角范围内开始。使燃料喷射阀(3)在喷射主喷射燃料(QM)之前喷射与主喷射燃料(QM)相比而为较少量的辅助喷射燃料(QN)，并使辅助喷射燃料(QN)进行预混合压燃。将辅助喷射燃料(QN)的预混合压燃正时控制为如下的正时，即，在主喷射燃料(QM)的喷射开始后，通过由辅助喷射燃料(QN)的预混合压燃所实现的发热将会触发主喷射燃料(QM)的预混合压燃的正时。

Spool shuttle crossover valve and combustion chamber in split-cycle engine

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders.

Flex fuel field generator

A generator system includes (i) an internal combustion engine, (ii) an exhaust gas outlet, connected to the internal combustion engine, for venting exhaust gasses, and (iii) a condenser, connected to the exhaust gas outlet, for condensing water from exhaust gasses.

Engine system, combustion control system, and operating method with close-coupled early pilots and cylinder temperature control

Operating a direct-injection compression-ignition engine includes injecting early pilot shots of fuel, and controlling a cylinder temperature timing to combust the early pilot shots according to a combustion phasing that is based on the cylinder temperature timing. A main charge of the fuel is combusted based on the combustion of the early pilot shots. A combustion control unit is structured to command actuation of a fuel injector and a cylinder temperature controller to phase combustion of early pilot shots of the fuel, prior to a TDC position of a piston in an engine cycle. The cylinder temperature controller is a variable valve actuator or other apparatus controlling cylinder temperature in a manner decoupled from piston position.

Spool shuttle crossover valve in split-cycle engine

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders.

COMPRESSION IGNITION INITIATION DEVICE AND INTERNAL COMBUSTION ENGINE USING SAME

An internal combustion engine having a compression ignition initiation device is provided. The compression ignition initiation device includes a body defining a chamber and an outlet from the chamber. The device further includes means, within the chamber, for generating a combustion initiating shock front from the outlet. A method is provided, including compressing a mixture of fuel and air in an internal combustion engine cylinder to a point less than a compression ignition threshold, and initiating ignition of the mixture by subjecting it to a shock front.

CONTROL DEVICE OF COMPRESSION-IGNITION ENGINE

FLEXIBLE FUEL GENERATOR AND METHODS OF USE THEREOF

A portable flexible fuel generator, having an engine, includes: a cylinder and a spark plug in the cylinder, a primary fuel tank fluidly connected to the cylinder, an air intake path fluidly connecting atmosphere to the cylinder, a start module including a starting fuel tank holder and a starting fuel line, where the starting fuel line is fluidly connected to the air intake path, a coolant path which provide a flow path for coolant to cool the cylinder, and a thermal controller along the coolant path. Furthermore, the engine has full cylinder cooling. 145-. (canceled)46. A portable flexible fuel generator , having an engine , comprising:(1) a cylinder, and a spark plug in the cylinder,(2) a primary fuel tank, fluidly connected to the cylinder,(3) an air intake path, fluidly connecting atmosphere to the cylinder,(4) a start module, comprising a starting fuel tank holder and a starting fuel line, wherein the starting fuel line is fluidly connected to the air intake path,(5) a coolant path, which provides a flow path for coolant to cool the cylinder, and(6) a thermal controller, along the coolant path, and(7) a starting fuel tank, fluidly connected to the starting fuel line,wherein the engine has full cylinder cooling, the starting fuel tank contains a low-boiling point low-flashpoint fuel, and the low-boiling point low-flashpoint fuel in the starting fuel tank is pressurized.47. The portable flexible fuel generator of claim 46 , wherein the generator is air-cooled.48. The portable flexible fuel generator of claim 46 , wherein the portable gasoline generator has a compression ratio of 8.2:1 claim 46 , has fixed spark plug ignition timing claim 46 , and has a 4 cycle claim 46 , 50 cc engine.49. The portable flexible fuel generator of claim 46 , wherein the generator does not include a battery.50. The portable flexible fuel generator of claim 46 , wherein the cylinder comprises aluminum.51. The portable flexible fuel generator of claim 46 , further comprising a generator ...

HYBRID COMBUSTION MODE OF INTERNAL COMBUSTION ENGINE AND CONTROLLER THEREOF, INTERNAL COMBUSTION ENGINE, AND AUTOMOBILE

A method for achieving a hybrid combustion mode of an internal combustion engine, a controller thereof, and an internal combustion engine. The hybrid combustion mode of an internal combustion engine comprises: directly injecting fuel in a cylinder; using homogeneous charge compression ignition combustion mode when the internal combustion engine is run; and when the internal combustion engine is low in load, or when it cannot be determined, that a compression ignition condition is met, switching a combustion control mode from ignition to compression ignition, if a compression ignition state can be switched to smoothly, maintaining the compression ignition combustion mode, and if the compression ignition state cannot be switched to smoothly and therefore the rotation speed of the engine decreases abnormally, quickly recovering the ignition combustion control mode. Cool start of low-octane gasoline internal combustion engine in a low-temperature environment can be implemented. 1. A method for achieving a hybrid combustion mode of an internal combustion engine , the method comprising:directly injecting a fuel into a cylinder;starting up the internal combustion engine through a spark ignition combustion mode to preheat the cylinder and an air distribution system of the engine;running the internal combustion engine through a compression ignition combustion mode, during which throttle valves are opened unless the engine flames out, so that air flow of the engine is not restricted by the throttle valves, closing a decompression valve of the turbo charger, and employing the turbocharger to improve an air inflation volume thereby increasing a temperature and pressure at an end of a compression stroke of the cylinder;periodically attempting to switch the combustion mode from the spark ignition combustion mode to the compression ignition combustion mode when the engine runs at a low load, or the compression ignition combustion mode cannot be ensured according to a water tank ...

SPOOL SHUTTLE CROSSOVER VALVE AND COMBUSTION CHAMBER IN SPLIT-CYCLE ENGINE

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders. 142-. (canceled)43. A split-cycle engine comprising:a first housing comprising a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke;a second housing comprising a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; anda valve housing comprising a valve chamber, wherein the valve chamber moves within the valve housing to selectively fluidly couple the valve chamber to the first and second housings.44. The engine of claim 43 , wherein claim 43 , during movement of the valve chamber claim 43 , the valve chamber fluidly couples with the first housing and fluidly couples with the second housing separately.45. The engine of claim 43 , wherein claim 43 , during movement of the valve chamber claim 43 , the valve chamber fluidly couples with the first housing and fluidly couples with the second housing simultaneously.46. The engine of claim 45 , wherein the valve chamber comprises a maximum velocity and a minimum acceleration within 15 crankshaft degrees of when the valve chamber is fluidly coupled to the first and second housings simultaneously.47. The engine of claim 46 , wherein the valve chamber comprises a maximum velocity and a minimum acceleration when the valve chamber is fluidly coupled to the first and second ...

METHOD AND APPARATUS FOR SEQUENTIAL CONTROL OF AIR INTAKE COMPONENTS OF A GAS-FUELED COMPRESSION IGNITION ENGINE

A method of controlling components in an air intake system for an internal combustion engine () uses sequential control. The method includes sequentially controlling the operation of a plurality of components () of an air intake system to control an excess air ratio for the engine, including identifying a deviation between an actual value of a parameter indicative of an excess air ratio and a desired value, controlling the first component () at a first time, and controlling the second component () at a second time that is later than the first time. The controlled components may be a turbo air bypass valve and a turbo wastegate valve. 1. A method of controlling components in an air intake system for a gaseous fueled compression ignition internal combustion engine , the method comprising:(A) delivering an air/fuel charge to the engine that includes at least air and a gaseous fuel, the air/fuel charge having an excess air ratio (lambda); i. identifying a deviation between an actual value of a parameter indicative of lambda and a desired value of the parameter;', 'ii. controlling a first component of the air intake system so as to partially compensate for the deviation, and then', 'iii. controlling a second component of the air intake system to further compensate for the deviation., '(B) sequentially controlling the operation of a plurality of components in an air intake system to control lambda, including'}2. The method of claim 1 , wherein the first component is a turbo air bypass valve and the second component is a wastegate valve.3. The method of claim 1 , wherein the first component is a wastegate valve and the second component is a turbo air bypass valve.4. The method of claim 1 , wherein the controlling steps comprise adjusting the first component a maximum available amount and then adjusting the second component only if the adjustment of the first component fails to compensate for the deviation.5. The method of claim 1 , wherein the desired value of the ...

HYBRID COMBUSTION MODE OF INTERNAL COMBUSTION ENGINE AND CONTROLLER THEREOF, INTERNAL COMBUSTION ENGINE, AND AUTOMOBILE

A hybrid combustion mode of an internal combustion engine and a controller thereof, an internal combustion engine, and an automobile. The hybrid combustion mode of an internal combustion engine comprises: directly injecting fuel in a cylinder, using ignition combustion control when the internal combustion engine is started, and increasing the inlet temperature and inlet pressure by using a turbocharger; using homogeneous charge compression ignition combustion mode when the internal combustion engine is run, and except when the engine flames out, opening all throttles, not performing exhaust relief control on the turbocharger, increasing filled gas amount by using the turbocharger, and increasing the combustion temperature and pressure of a tail end of a cylinder compression stroke; and when the internal combustion engine is low in load, or when it cannot be determined, through the temperature of a water tank and the inlet pressure behind the throttle, that a compression ignition condition is met, switching a combustion control mode from ignition to compression ignition, if a compression ignition state can be switched to smoothly, maintaining the compression ignition combustion mode, and if the compression ignition state cannot be switched to smoothly and therefore the rotation speed of the engine decreases abnormally, quickly recovering the ignition combustion control mode. Cool start of low-octane gasoline internal combustion engine in a low-temperature environment can be implemented. 1. A method for operating an engine capable of a hybrid combustion mode , the method comprising:directly injecting a fuel into a cylinder;selecting a low octane number gasoline as the fuel with a Research Octane Number (RON) of −20 to 69;operating the engine running under a non-homogenous combustion compression ignition (NHCCI) mode comprising: directly injecting the low octane number gasoline into the cylinder during a compression stroke in which a piston moves from the BDC to the ...

Spool shuttle crossover valve in spilt-cycle engine

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders.

Systems and methods for in-cylinder fuel dosing for exhaust aftertreatment system thermal management

An apparatus comprises a first circuit and a second circuit. The first circuit is structured to determine that a combustion cylinder is operating in a transition period between an exhaust stroke and an intake stroke of the combustion cylinder. The second circuit is structured to provide an injection command during the transition period to a fuel injector associated with the combustion cylinder, the injection command being to inject fuel into a combustion chamber of the combustion cylinder such that at least a portion of the fuel escapes from the combustion chamber through an exhaust port of the combustion cylinder.

Spool shuttle crossover valve in split-cycle engine

스플릿-사이클 엔진은: 제 1 피스톤을 수용하는 제 1 실린더로서, 상기 제 1 피스톤은 흡기 행정 및 압축 행정을 수행하지만 배기 행정을 수행하지 않는, 제 1 실린더; 제 2 피스톤을 수용하는 제 2 실린더로서, 상기 제 2 피스톤은 팽창 행정 및 배기 행정을 수행하지만 흡기 행정을 수행하지 않는 제 2 실린더; 밸브를 수용하는 밸브 챔버로서, 상기 밸브는 제 1 실린더 및 제 2 실린더에 선택적으로 유체적으로 커플링하는 내부 챔버를 더 포함하는, 밸브 챔버를 포함하고, 상기 밸브 및 내부 챔버는 밸브 챔버 내에서 그리고 제 1 실린더 및 제 2 실린더에 대해 상대적으로 이동한다. The split-cycle engine comprises: a first cylinder for receiving a first piston, the first piston performing an intake stroke and a compression stroke but not an exhaust stroke; A second cylinder accommodating a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; A valve chamber containing a valve, the valve further comprising an inner chamber fluidly coupled selectively to the first cylinder and the second cylinder, the valve and the inner chamber within the valve chamber And it moves relative to the first cylinder and the second cylinder.

Reel slide transfer valve in split-cycle motor

Un motor de ciclo dividido que comprende: un primer cilindro (01) que alberga un primer pistón (03), en donde el primer pistón (03) realiza una carrera de admisión y una carrera de compresión, pero no realiza una carrera de escape; un segundo cilindro (02) que alberga un segundo pistón (04), en donde el segundo pistón (04) realiza una carrera de expansión y una carrera de escape pero no realiza una carrera de admisión; caracterizado por un cilindro (14) de válvula que alberga una válvula (15), la válvula (15) que comprende una cámara (16) interna que se acopla de forma fluida selectivamente al primer (01) y al segundo (02) cilindros, en donde la válvula (15) y la cámara (16) interna se mueven linealmente y de forma alternativa entre el cilindro (14) de válvula y con respecto al primer (01) y el segundo (02) cilindros, y en donde la válvula (15) tiene un puerto que acopla de forma fluida la cámara (16) interna al primer (01) y segundo (02) cilindros. A split-cycle engine comprising: a first cylinder (01) that houses a first piston (03), wherein the first piston (03) performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder (02) that houses a second piston (04), wherein the second piston (04) performs an expansion stroke and an exhaust stroke but does not perform an intake stroke; characterized by a valve cylinder (14) housing a valve (15), the valve (15) comprising an internal chamber (16) that selectively couples the first (01) and the second (02) cylinders fluidly, wherein the valve (15) and the internal chamber (16) move linearly and alternatively between the valve cylinder (14) and with respect to the first (01) and the second (02) cylinders, and where the valve (15) has a port that fluidly couples the inner chamber (16) to the first (01) and second (02) cylinders.

Fast torque response for boosted engines

Engine controllers and control schemes are provided for managing engine state transitions requiring increased compressor pressure ratios in turbocharged engines operating in a cylinder output level modulation mode (e.g., skip fire, multi-level skip fire, or firing level modulation modes). In some circumstances, turbo lag can be mitigated by initially transitioning the engine to an intermediate effective firing density that is higher than both the initial and target effective firing density to increase the flow of gases through the engine and the turbocharger while maintaining a compressor ratio the same as or close to the initial compressor pressure ratio. After reaching a point where the desired torque is actually generated at the intermediate effective firing density, the operational effective firing density is gradually reduced to the target effective firing density while increasing the operational compressor pressure ratio to the target compressor ratio.

Divide the spool shuttle bridging valve in cycle engine

本发明涉及一种分裂循环发动机，其包含：第一汽缸，其装纳第一活塞，其中所述第一活塞执行进气冲程及压缩冲程，但不执行排气冲程；第二汽缸，其装纳第二活塞，其中所述第二活塞执行膨胀冲程及排气冲程，但不执行进气冲程；及阀室，其装纳阀，所述阀包括选择性地以流体方式耦合到所述第一及第二汽缸的内室，其中所述阀及内室在所述阀室内且相对于所述第一及第二汽缸移动。

Method and apparatus for sequential control of air intake components of a gas-fueled compression ignition engine

A method of controlling components in an air intake system for an internal combustion engine (10) uses sequential control. The method includes sequentially controlling the operation of a plurality of components (130, 132, 134) of an air intake system to control an excess air ratio for the engine, including identifying a deviation between an actual value of a parameter indicative of an excess air ratio and a desired value, controlling the first component (130) at a first time, and controlling the second component (132) at a second time that is later than the first time. The controlled components may be a turbo air bypass valve and a turbo wastegate valve.

Patent BE433826A

Machine learning for misfire detection in a dynamic firing level modulation controlled engine of a vehicle

Using machine learning for cylinder misfire detection in a dynamic firing level modulation controlled internal combustion engine is described. In a classification embodiment, cylinder misfires are differentiated from intentional skips based on a measured exhaust manifold pressure. In a regressive model embodiment, the measured exhaust manifold pressure is compared to a predicted exhaust manifold pressure generated by neural network in response to one or more inputs indicative of the operation of the vehicle. Based on the comparison, a prediction is made if a misfire has occurred or not. In yet other alternative embodiment, angular crank acceleration is used as well for misfire detection.

Compression ignition internal combustion engine using reactive agent

本发明一种使用反应活性剂的压燃点火内燃机，以加油站汽油、柴油或者甲醇为燃料，实现扩散压燃点火和均质稀薄燃烧控制，热效率大于45％，比油耗小于185克/千瓦小时，NO X 排放接近于零。采用能够降低燃料辛烷值的反应活性剂(燃料添加剂)作为辅助燃料。燃料和辅助燃料在点火燃料混合器中混合成均匀的点火燃料。点火燃料在内燃机的压缩冲程喷射进入气缸，在压缩空气中扩散和自燃，实现多点点火，点燃做功的燃料。做功的燃料在进气冲程喷射到进气道或者喷射进入气缸与空气预混合，在气缸中形成相对均匀的混合气。点火燃料在燃料中的比例约为3‑10％。以92 # 汽油为燃料时，辅助燃料的消耗量约为燃料消耗量的0.1％，汽车行驶10000公里消耗辅助燃料约0.45升。

Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture

Embodiments described herein relate to systems and methods of operating internal combustion (IC) engines by combusting various fuel chemistries therein. Specifically, engines described herein can operate a wide range of fuel chemistries with varying molecular formulas. The chemical compositions of the fuels described herein make them more difficult to ignite than long chain hydrocarbons (i.e., fuels that include 6 or more carbon atoms in a molecule). In some embodiments, engines described herein can combust fuels that have the chemical properties of alcohols. In some embodiments, engines described herein can combust fuels that include hydroxide groups. Examples of such fuels include methanol and/or ethanol. In some embodiments, engines described herein can combust natural gas. These fuel chemistries are difficult to ignite, particularly at low temperatures and during initial engine startup. Systems and methods described herein address these ignition difficulties, particularly in diesel engine architectures.

内燃機関の熱発生率波形作成装置および燃焼状態診断装置

【課題】内燃機関の気筒内での燃料の燃焼状態を高い精度で規定することが可能な内燃機関の熱発生率波形作成装置および燃焼状態診断装置を提供する。 【解決手段】ディーゼルエンジンにおいて、気筒内をキャビティ内領域とキャビティ外領域とに分割し、各領域毎に、噴射された燃料の気化反応、低温酸化反応、熱分解反応、高温酸化反応それぞれの反応形態に対し、反応開始温度を基点として、反応速度を斜辺の勾配、反応量を面積、反応期間を底辺の長さとする二等辺三角形で成る理想熱発生率波形モデルを作成し、この理想熱発生率波形モデルをフィルタ処理によって円滑化して合成することにより各反応形態の理想熱発生率波形を作成する。各反応の理想熱発生率波形と、検出された筒内圧力から求められた実熱発生率波形とを比較し、その乖離が所定量以上である反応形態が存在する場合には、その反応形態において異常が生じていると診断する。 【選択図】図１２

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具前碗的压缩点火发动机活塞及使用其的发动机运行策略

一种直喷式压缩点火内燃机包括发动机壳体，其具有汽缸以及在汽缸内可移动的活塞，该活塞包括形成燃烧碗的活塞端面。活塞端面具有环形活塞缘，该环形活塞缘具有圆形内缘表面，该圆形内缘表面从平面外缘表面径向向内且轴向向下延伸至燃烧碗边缘。前碗由圆形内缘表面限定，并且前碗体积为燃烧碗和前碗总体积的约0.8％或更大。前碗的配置和尺寸属性与运行过程中减少烟产生有关，特别是对于低至中负荷瞬态。

内燃机混合燃烧控制方法

一种内燃机混合燃烧控制方法和采用这种混合控制方法的内燃机产品。在内燃机(发动机)启动阶段，采用火花塞点火的燃烧控制方法；在发动机启动之后正常运行阶段，采用非均质压燃点火的燃烧控制方法；正常运行过程中因为工况变化，进气压力波动，使得燃烧室温度不能满足压燃燃烧控制方法的条件时，依靠火花塞点火的燃烧控制方法，维持发动机正常工作。由于大部分时间实现分层燃烧和稀薄燃烧，避免了爆震和爆震问题对进气压力的限制，发动机可充分利用涡轮增压装置所能够提供的最高进气压力和最大进气流量，提高充气效率，提高发动机效率和燃油经济性。

エンジンの制御装置

【課題】燃料の過昇温を防止しつつ適切な部分圧縮着火燃焼を実現する。【解決手段】加圧室８２ａと、加圧室８２ａに挿入されて加圧室８２ａの容積を変更するプランジャ８５と、吸入口８３を開閉する開閉弁８７とを備える燃料ポンプ８０を有するエンジンにおいて、加圧室８２ａの容積が増大して加圧室８２ａに燃料が吸入可能となる吸入行程の期間と、加圧室８２ａの容積が低減して加圧室８２ａ内の燃料が昇圧可能となる加圧行程の期間とを合わせた期間を加圧周期としたとき、部分圧縮着火燃焼が実施される第２燃焼モードのときの方が、ＳＩ燃焼が実施される第１燃焼モードのときよりも、加圧周期に対する開閉弁８７の閉弁周期の比率が小さくなるように、開閉弁８７の閉弁周期を制御する。【選択図】図９

Flexible fuel generator and methods of use thereof

Flexible fuel generator and methods of use thereof

A portable flexible fuel generator, having an engine, includes: a cylinder and a spark plug in the cylinder, a primary fuel tank fluidly connected to the cylinder, an air intake path fluidly connecting atmosphere to the cylinder, a start module including a starting fuel tank holder and a starting fuel line, where the starting fuel line is fluidly connected to the air intake path, a coolant path which provide a flow path for coolant to cool the cylinder, and a thermal controller along the coolant path. Furthermore, the engine has full cylinder cooling.

フレックス燃料発電機及びその使用方法

エンジンを搭載した携帯型フレックス燃料発電機は、シリンダ及びシリンダ内に設けられたスパークプラグと、シリンダに流体結合された一次燃料タンクと、大気をシリンダに流体結合する空気取り入れ経路と、始動用燃料タンクホルダ及び始動用燃料ラインを含む始動用モジュールとを有し、始動用燃料ラインは、空気取り入れ経路に流体結合され、携帯型フレックス燃料発電機は、シリンダを冷却するための冷却剤の流路を提供する冷却剤経路と、冷却剤経路に沿って設けられた熱制御装置とを更に有する。エンジンは、全シリンダ冷却系を有する。【選択図】図１

Flexible fuel generator and methods of use thereof

フレックス燃料発電機及びその使用方法

Metodă şi dispozitiv de recuperare a energiei cinetice produse pe durata procesului de frânare, de reutilizare a acesteia pe durata procesului de demaraj şi de supraalimentare cu aer comprimat a cilindrilor cu ardere internă

Control device for engine, engine, method of controlling engine, and computer program product

A control device for controlling an engine provided with a fuel pump including a pressurizing chamber, a plunger inserted into the pressurizing chamber and which changes a volume of the pressurizing chamber, and an on-off valve configured to open and close a suction port, is provided. When a pressurizing cycle consists of a period of pressurizing stroke in which the volume of the pressurizing chamber is reduced to allow fuel to be pressurized and a period of suction stroke in which the volume of the pressurizing chamber is increased to allow fuel to be drawn into the pressurizing chamber, , a closing cycle of the on-off valve is controlled so that a ratio of the closing cycle to the pressurizing cycle becomes smaller in a second combustion mode where a partial compression-ignition combustion is performed than in a first combustion mode where SI combustion is performed.

Control device for engine, engine, method of controlling engine, and computer program product

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Compression Ignition Engine with Igniter and Pilot Injector

A compression ignition engine provides a main injector and a second pilot injector producing a spray passing over an igniter producing a pilot flame assisting in ignition of the main injector spray.

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Method and device for recovering the kinetic energy produced during the braking process, for its reuse during the start-up process and for supercharging

用于柴油发动机架构中的高辛烷值燃料的冷起动

本文公开的实施例总体上涉及操作内燃(IC)发动机的系统和方法，并且更具体地涉及当周围环境比发动机的正常操作温度明显低时起动压缩点火(CI)发动机(即，“冷起动”)的系统和方法。在一些实施例中，CI发动机可以包括点火辅助装置。在一些实施例中，一种在冷起动期间操作CI发动机的方法可以包括：打开进气门以将一体积的空气吸入燃烧室中；使活塞以介于约15和约25之间的压缩比从燃烧室中的下止点位置运动到上止点；喷射一体积的燃料，所述燃料具有小于约30的十六烷值；关闭进气门；以及，使所述体积的燃料基本全部燃烧。

改进的用于发动机的氨基燃料

一种包括糖和氨溶液的燃料制剂，其中糖和氨以大于燃料制剂的按重量计70百分比的组合量存在，并且其中糖包括果糖、葡萄糖、蔗糖或其组合。

一种使用反应活性剂的压燃点火内燃机

本发明一种使用反应活性剂的压燃点火内燃机，以加油站汽油、柴油或者甲醇为燃料，实现扩散压燃点火和均质稀薄燃烧控制，热效率大于45％，比油耗小于185克/千瓦小时，NO X 排放接近于零。采用能够降低燃料辛烷值的反应活性剂(燃料添加剂)作为辅助燃料。燃料和辅助燃料在点火燃料混合器中混合成均匀的点火燃料。点火燃料在内燃机的压缩冲程喷射进入气缸，在压缩空气中扩散和自燃，实现多点点火，点燃做功的燃料。做功的燃料在进气冲程喷射到进气道或者喷射进入气缸与空气预混合，在气缸中形成相对均匀的混合气。点火燃料在燃料中的比例约为3‑10％。以92 # 汽油为燃料时，辅助燃料的消耗量约为燃料消耗量的0.1％，汽车行驶10000公里消耗辅助燃料约0.45升。

具前碗的压缩点火发动机活塞及使用其的发动机运行策略

一种直喷式压缩点火内燃机包括发动机壳体，其具有汽缸以及在汽缸内可移动的活塞，该活塞包括形成燃烧碗的活塞端面。活塞端面具有环形活塞缘，该环形活塞缘具有圆形内缘表面，该圆形内缘表面从平面外缘表面径向向内且轴向向下延伸至燃烧碗边缘。前碗由圆形内缘表面限定，并且前碗体积为燃烧碗和前碗总体积的约0.8％或更大。前碗的配置和尺寸属性与运行过程中减少烟产生有关，特别是对于低至中负荷瞬态。

一种使用单甲醇燃料的压燃式发动机系统及其操作方法

本发明公开一种使用单甲醇燃料的压燃式发动机系统，其包括：压燃式发动机(1)，其包括气缸组件，气缸组件包括气缸(2)、预热塞(6)、进气道(7)、排气道(19)和燃料喷嘴(3)；供气系统，其包括依次串联的增压器(14)和进气管(9)，进气管(9)中部具有加热混合段(10)，加热混合段(10)连接有引燃剂喷嘴(11)；排气系统，其包括排气管(5)，排气管(5)的进口连接至排气道(19)，排气管(5)的出口连接至增压器(14)。本发明以甲醇与空气的混合气为引燃剂，以甲醇为燃料，实现压燃式发动机系统的正常运行，整个燃烧过程可控、高效，解决了单甲醇燃料在柴油机上的应用。

用于排气后处理系统热管理的缸内燃料配给的系统和方法

一种装置包括第一电路和第二电路。第一电路被构造成确定燃烧气缸在燃烧气缸的排气冲程和进气冲程之间的过渡期中操作。第二电路被构造成在过渡期期间向与燃烧气缸相关联的燃料喷射器提供喷射命令，该喷射命令用于将燃料喷射到燃烧气缸的燃烧室中，使得燃料的至少一部分通过燃烧气缸的排气端口从燃烧室逸出。