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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 1583. Отображено 100.
12-01-2012 дата публикации

Control device for internal combustion engine

Номер: US20120010801A1
Автор: Kaoru Ohtsuka, Kiyonori Takahashi, Naoto Kato, Shinichi Soejima
Принадлежит: Toyota Motor Corp

In a control device which uses a specific physical quantity as a control variable of an internal combustion engine, and controls the internal combustion engine by manipulation of one or a plurality of actuators, switching of setting of a manipulation variable based on a required value of a physical quantity and setting of the manipulation variables by direct instruction to individual actuators is performed without generating discontinuity in a realized value of the physical quantity. When a manipulation variable instruction value directly designating a manipulation variable of an actuator is present, the manipulation variable instruction value is converted into a value of a physical quantity which is realized in the internal combustion engine by the operation quantity instruction value. When a deviation between a physical quantity conversion value converted from the manipulation variable instruction value and the physical quantity required value is within a predetermined range, switch of information for use in setting of the manipulation variable of each of the actuators is permitted.

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Номер записи: 1
28-06-2012 дата публикации

Internal Combustion Engine with Masking Wall the Curtain Area of the Intake Valves

Номер: US20120160198A1
Автор: Francesco PERNA, Mario DURANDO, Roberto Saretto
Принадлежит: Centro Ricerche Fiat SCpA

A spark ignition four stroke internal combustion engine includes two intake valves and two exhaust valves for each cylinder, arranged around a central spark plug and provided with means for varying the lift of the intake valves between a zero value and a maximum value H. A masking wall which masks the curtain area of the intake valves on one side facing towards the exhaust valves is provided in the combustion chamber associated to each cylinder. The axis of each intake valve is inclined with respect to the axis of the respective engine cylinder by an angle not exceeding 12° and the abovementioned masking wall has along the seat of each intake valve a height h in the direction parallel to the axis of the intake valve which is comprised between 0.1 and 0.5 times, extremes excluded, the maximum value H of the lift of the intake valves.

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Номер записи: 2
04-10-2012 дата публикации

Engine combustion control at low loads via fuel reactivity stratification

Номер: US20120247421A1
Автор: Derek A. Splitter, Reed M. Hanson, Rolf Deneys Reitz, Sage L. Kokjohn
Принадлежит: Individual

A compression ignition (diesel) engine uses two or more fuel charges during a combustion cycle, with the fuel charges having two or more reactivities (e.g., different cetane numbers), in order to control the timing and duration of combustion. By appropriately choosing the reactivities of the charges, their relative amounts, and their timing, combustion can be tailored to achieve optimal power output (and thus fuel efficiency), at controlled temperatures (and thus controlled NOx), and with controlled equivalence ratios (and thus controlled soot). At low load and no load (idling) conditions, the aforementioned results are attained by restricting airflow to the combustion chamber during the intake stroke (as by throttling the incoming air at or prior to the combustion chamber's intake port) so that the cylinder air pressure is below ambient pressure at the start of the compression stroke.

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Номер записи: 3
13-12-2012 дата публикации

Fuel management system for variable ethanol octane enhancement of gasoline engines

Номер: US20120312284A1
Автор: Daniel R. Cohn, John B. Heywood, Leslie Bromberg
Принадлежит: Massachusetts Institute of Technology

Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency of the engine.

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Номер записи: 4
03-01-2013 дата публикации

Internal-combustion engine working with alternative fuels

Номер: US20130000596A1
Автор: Jesus Manuel Diaz Escaño
Принадлежит: Individual

Internal combustion engine ( 1 ) that runs on alternative fuels, conceived for use with vegetable oil and water as fuels, essentially comprising: combustion, lubrication, electrical, cooling and starting systems, as well as an engine block ( 2 ), cylinder head ( 3 ), oil pan ( 4 ), and for each cylinder ( 5 ) has a piston ( 6 ), connecting rod ( 7 ), crankshaft ( 8 ), combustion chamber ( 9 ), auxiliary pre-combustion chamber ( 10 ), intake valve ( 11 ), exhaust valve ( 12 ), intake duct ( 13 ), exhaust duct ( 14 ), overpressure safety valve ( 15 ), safety valve duct ( 16 ), glow plug ( 17 ), vegetable oil injector ( 18 ), water injector ( 19 ), cylinder ( 5 ) or special cylinder sleeve ( 20 ), special coating or coating manufactured with a special material ( 21 ), availability of two independent fuel tanks, and two independent injection systems. This engine in its operation is able to primarily break the chemical bonds of water molecules (electrolytic dissociation) and include a specific specification hydrolysis reaction.

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Номер записи: 5
30-05-2013 дата публикации

Laser-induced spark ignition for an internal combustion engine

Номер: US20130133602A1
Автор: Joerg Engelhardt, Juergen Raimann, Martin Weinrotter, Pascal Woerner
Принадлежит: ROBERT BOSCH GMBH

A laser spark plug for an internal combustion engine includes at least one element for guiding, shaping and/or generating laser radiation, a combustion chamber window and a housing. The housing has, on the opposite side of the combustion chamber window from the element, an aperture for the passage of the laser radiation guided, shaped and/or generated by the element into a prechamber disposed at the end of the housing on the combustion chamber side. At least one overflow channel is provided for a fluid connection between an internal space of the prechamber and a combustion chamber surrounding the prechamber. When a fluid flows into the internal space of the prechamber through the overflow channel, a fluid flow is obtained that enters the interior of the aperture at a minimum angle ε, in particular measured with respect to the longitudinal axis of the laser spark plug, of 45°.

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Номер записи: 6
13-06-2013 дата публикации

Toroidal Combustion Chamber With Side Injection

Номер: US20130146021A1
Автор: Brehob Diana, Hofbauer Peter, Levy Robert
Принадлежит: EcoMotors, Inc.

A toroidal combustion chamber shape with side injectors is being developed for an opposed-piston engine. Favorable combustion characteristics of such configuration are transferred to a conventional engine, i.e., one with a combustion chamber delimited by a piston, a cylinder wall, and a cylinder head. At least one injector is disposed in the cylinder head at the periphery. The fuel is injected substantially along the plane of interface between the cylinder head and the cylinder block. The intake system is configured to provide a swirling flow in the combustion chamber. The fuel is injected in an angle that is displaced from the central axis of the cylinder and directed along the swirl. In some embodiments, a substantially torus-shaped volume is formed between the piston and the cylinder head when the piston is at top center. The injector or injectors spray fuel into the toroidally-shaped volume substantially tangent to the torus. 1. An internal combustion engine , comprising:a block defining a cylinder wall;a cylinder head affixed to the block, the cylinder head having two intake ports with first and second intake valves disposed therein and two exhaust ports with first and second exhaust valves disposed therein, the cylinder head further having an intake geometry that promotes a swirl flow of gases flowing through intake ports;a piston disposed within the cylinder wall with a central axis of the piston substantially coincident with a central axis of the cylinder wall with a top of the piston having a raised outer ring near the periphery of the piston that squishes gases inwardly toward the central axis when the piston travels toward the cylinder head; the injector has at least one orifice through which at least one fuel jet emanates when the orifice is open;', 'the injector is disposed in the cylinder wall with an axis of the injector angled such that a tip of the injector is pointed downward toward the block; and', 'the at least one fuel jet exits at an angle to ...

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Номер записи: 7
20-06-2013 дата публикации

Dual fuel combustion system based on diesel compression ignition triggered ignition control

Номер: US20130152899A1
Автор: Dae Choi, Hyeungwoo Lee, Minyoung Ki, Seungil PARK, Yohan Chi
Принадлежит: Hyundai Motor Co

In a method for a diesel-gasoline dual fuel premixed charge compression ignition combustion system based on diesel compression ignition triggered ignition control of the present invention, air (+EGR gas) and a gasoline fuel supplied in a premixed charge intake stroke create a premixed surroundings, a diesel fuel injected in at least two classified steps in a succeeding compression ignition stroke creates a compression ignition combustion surroundings for a diesel and serves as an ignition trigger to produce flames, and the gasoline fuel injected in the premixed charge intake stroke and having created the premixed surroundings is burned in a succeeding combustion expansion stroke to generate power. Accordingly, a practical diesel-gasoline dual fuel powered engine solving both unstable combustion due to difficulty in control of ignition times and combustion and knockings restricting power performance can be realized.

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Номер записи: 8
11-07-2013 дата публикации

HYBRID VEHICLE AND METHOD FOR CONTROLLING THE SAME

Номер: US20130174806A1
Автор: NAGAKURA Keisuke
Принадлежит:

A hybrid vehicle includes: an internal combustion engine having an in-cylinder injection valve directly injecting fuel into a combustion chamber and a port injection valve injecting fuel into an intake port; and a motor generator, and causes a torque equal to a user required torque to act on a drive shaft by controlling output torques of the engine and motor generator. When a misfire is not detected, the hybrid vehicle operates the engine at an engine operation point at which an engine power satisfies an engine required power in a first engine operation line. When a misfire is detected, the hybrid vehicle operates the engine at an engine operation point at which the engine power satisfies the engine required power in a second engine operation line, causes one of the injection valves to inject an entire amount of fuel, and determines which one is abnormal. 1. A hybrid vehicle comprising:an internal combustion engine including an in-cylinder injection valve and a port injection valve, the in-cylinder injection valve directly injecting fuel into a combustion chamber, and the port injection valve injecting fuel into an intake port that communicates with the combustion chamber;an electric motor;a power transmission mechanism configured to couple a drive shaft of the hybrid vehicle to the engine to transmit torque and to couple the drive shaft to the electric motor to transmit torque;a driving force control unit configured to control the engine and the electric motor such that a torque being determined on the basis of a user's accelerator operation amount is caused to act on the drive shaft, the torque being equal to a user required torque that is required to rotate the drive shaft; andan abnormality determination unit configured to determine whether a misfire occurs in the engine, whereinthe driving force control unit is configured to control the engine and the electric motor such that i) the engine is operated at an engine operation point that satisfies an engine ...

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Номер записи: 9
18-07-2013 дата публикации

HIGH-PRESSURE SPARK AND STRATIFICATION IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20130180498A1
Автор: RABHI Vianney
Принадлежит:

The high-pressure spark and stratification ignition device () for an internal combustion engine () includes: 118911191018751417. High-pressure spark and stratification ignition device for an internal combustion engine () , the engine comprising a cylinder head () having at least one combustion chamber () into which there open an intake conduit () communicating with an intake plenum () and an exhaust conduit () with an exhaust manifold () and a catalytic converter () for treatment of the pollutants , the engine further comprising a pressurized lubrication circuit () , a cooling circuit () , and an ECU computer , characterized in that it comprises:{'b': 20', '21', '22', '23', '9', '1', '23', '24', '9, 'at least one low-lift stratification valve () kept in contact with a seat () by at least one spring (), this valve closing the end of a stratification conduit () and this end of the stratification conduit opening into the combustion chamber () of the internal combustion engine (), while the stratification conduit () connects at least one stratification chamber () to the combustion chamber ();'}{'b': 25', '20', '26', '9', '1, 'at least one spark plug () housed in the low-lift stratification valve (), this spark plug having projecting electrodes () positioned in the combustion chamber () of the engine ();'}{'b': 27', '1', '20', '21, 'at least one stratification actuator () controlled by the ECU computer of the internal combustion engine (), this actuator being responsible for lifting the low-lift stratification valve () from its seat (), keeping it open, and returning it to its seat;'}{'b': 28', '24', '29', '30', '31', '24, 'at least one stratification line () connecting the stratification chamber () to the outlet of a stratification compressor () whose inlet is connected directly or indirectly to a stratification atmospheric air supply conduit (), the line, the compressor, its inlet and outlet, and the supply conduit forming in combination an atmospheric air supply ...

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Номер записи: 10
18-07-2013 дата публикации

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE HAVING MULTIPLE COMBUSTION CHAMBERS, AND INTERNAL COMBUSTION ENGINE HAVING MULTIPLE COMBUSTION CHAMBERS

Номер: US20130180511A1
Автор: Hess Werner, Ries-Mueller Klaus
Принадлежит:

In a method for operating an internal combustion engine having multiple combustion chambers and an injector for injecting fuel associated with at least one combustion chamber, an excess air factor which is individual for each combustion chamber is adjusted for the at least one combustion chamber, and a torque which is individual for each combustion chamber is ascertained for the at least one combustion chamber. A control period of the injector is adapted for the injector by ascertaining a valve opening period in such a way that tolerances of the injector are at least essentially compensated for with respect to a relationship between the control period and the valve opening period. 110-. (canceled)11. A method for operating an internal combustion engine having multiple combustion chambers , wherein an injector for injecting fuel is associated with at least one combustion chamber , the method comprising:adjusting an excess air factor for at least one combustion chamber, wherein each combustion chamber has an associated individual excess air factor;adapting, with the aid of an adaptation operation, a control period of the injector by one of detecting or ascertaining a valve opening period of the injector in such a way tolerances of the injector are at least essentially compensated for with respect to a relationship between the control period and the valve opening period;determining whether the adapting of the control period of the injector has reached a steady state; andascertaining a torque for the at least one combustion chamber, wherein each combustion chamber has an associated individual torque, wherein the individual torque for the at least one combustion chamber is not ascertained until the adapting of the control period of the injector has been determined to have reached a steady state.12. The method as recited in claim 11 , wherein in the adapting of the control period claim 11 , at least one valve delay time of the injector is ascertained by detecting and ...

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Номер записи: 11
08-08-2013 дата публикации

HIGH-PRESSURE SPARK-IGNITION AND STRATIFICATION DEVICE FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20130199494A1
Автор: RABHI Vianney
Принадлежит:

A high-pressure spark-ignition and stratification device () for internal combustion engine () includes: 118911191018751417. High-pressure spark-ignition and stratification device for an internal combustion engine () , said engine comprising a cylinder head () having at least one combustion chamber () into which there open an intake conduit () communicating with an intake plenum () , and an exhaust conduit () communicating with an exhaust manifold () and a catalytic converter () for post-treatment of the pollutants , said engine further comprising a pressurized lubrication circuit () , a cooling circuit () and an ECU computer , characterized in that it comprises:{'b': 20', '8', '1', '21', '22', '23', '79', '24', '39', '9', '1', '39', '9', '26', '25', '8', '1', '9', '1, 'at least one stratification valve () housed in the cylinder head () of the internal combustion engine (), said valve being kept in contact with a seat () by at least one spring () and said valve closing a first end of at least one stratification conduit () which opens into a stratification prechamber () while a second end that said conduit comprises opens into a stratification chamber (), the latter being connected by at least one stratification injection conduit () to the combustion chamber () of the internal combustion engine (), said injection conduit () opening into said combustion chamber () near protruding electrodes () of a spark plug () fixed in the cylinder head () of the internal combustion engine (), said electrodes being positioned in the combustion chamber () of said engine ();'}{'b': 27', '1', '20', '21, 'at least one stratification actuator () controlled by the ECU computer of the internal combustion engine (), said actuator being responsible for lifting the stratification valve () off its seat (), keeping it open and returning it to its seat;'}{'b': 28', '79', '29', '30', '23', '31', '24, 'at least one stratification line () connecting the stratification prechamber () to the outlet of ...

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Номер записи: 12
15-08-2013 дата публикации

Hybrid Cycle Combustion Engine and Methods

Номер: US20130206102A1
Автор: Shkolnik Alexander C., Shkolnik Nikolay
Принадлежит: LIQUIDPISTON, INC.

An improved internal combustion engine of the four-stroke variable volume type operates by refraining from introducing substantial fuel into the working medium during the compression stroke until substantially maximum pressure of the working medium has been reached and utilizing at least one of the following processes: (a) causing combustion of fuel under substantially constant volume conditions; and (b) causing the power stroke to provide a larger volume to combustion products than the compression stroke provides to the working medium. Related methods are also provided. 1. An improved method of operating an internal combustion engine , of the type having a housing , a piston rotatably mounted in the housing and coupled to a shaft , and wherein occur phases of compression , combustion , and expansion in the housing , and wherein , in the compression phase , air introduced through an intake port into the housing is compressed by reducing volume of a compression chamber in the housing from an initial volume to a second volume that is less than the initial volume , and wherein the housing includes an exhaust port through which are passed gases resulting from combustion of fuel during the combustion phase , wherein the improvement provides improved performance in the combustion and expansion phases and comprises:providing a recess in the housing and configuring the piston so that, in the course of rotation of the piston, the piston at least in part covers the recess during the combustion phase to form a constant volume combustion chamber and during the expansion phase defines at least in part an expansion chamber volume that undergoes expansion of gases from combustion while the expansion chamber volume increases to a third volume that is larger than the initial volume;providing a fuel injector and a controller configured to cause injection of the fuel into the recess;causing combustion, in the combustion phase, of the fuel that has been introduced into the combustion ...

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Номер записи: 13
22-08-2013 дата публикации

METHOD OF OPERATING A COMBUSTION ENGINE PROVIDED WITH AT LEAST ONE FLUSHED PRECHAMBER

Номер: US20130213347A1
Автор: FIMML Wolfgang, Schaumberger Herbert, WINTER Hubert
Принадлежит: GE JENBACHER GMBH & CO OG

Method of operating a combustion engine provided with at least one flushed prechamber, wherein the at least one prechamber is connected to a main combustion chamber of the combustion engine and wherein—during a compression phase immediately preceding the ignition in the main combustion chamber—after ignition has taken place in the prechamber, in a first transfer phase gas transfers from the prechamber into the main combustion chamber, wherein after the first transfer phase, an at least two-phase, incompressible medium—preferably water—is introduced into the prechamber. 1. A method of operating a combustion engine provided with at least one flushed prechamber , wherein the at least one prechamber is connected to a main combustion chamber of the combustion engine and wherein—during a compression phase immediately preceding the ignition in the main combustion chamber—after ignition has taken place in the prechamber , in a first transfer phase gas transfers from the prechamber into the main combustion chamber , wherein after the first transfer phase an at least two-phase , incompressible medium—preferably water—is introduced into the prechamber.2. The method as claimed in claim 1 , wherein the medium is injected into the prechamber.3. The method as claimed in claim 1 , wherein the medium is introduced into the prechamber before the maximum pressure pis reached in the main combustion chamber.4. The method as claimed in claim 1 , wherein in at least one second transfer phase claim 1 , backflowing gas flows back from the main combustion chamber into the prechamber claim 1 , wherein the medium is introduced at least for a time during the at least one second transfer phase.5. The method as claimed in claim 1 , wherein the medium is introduced in a range of crankshaft angle from about 15 degrees of crankshaft angle before a top dead center of a piston delimiting the main combustion chamber to about 10 degrees of crankshaft angle after the top dead center of the piston ...

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Номер записи: 14
29-08-2013 дата публикации

RETROFIT GAS FUEL SUPPLY KIT RETROFITTABLE TO INTERNAL COMBUSTION ENGINE USING LIQUID FUEL

Номер: US20130220270A1
Автор: Imai Sakuichirou, NAKANO Shigeru
Принадлежит: VILLAGE ROAD CO., LTD.

The invention provides a gas fuel supply kit for the existing vehicle (vehicle mounting a gasoline engine, or a diesel engine), in order to use a gas fuel such as hydrogen after wards. 1. A post-installable type gas fuel supply kit to be installed in an internal combustion engine using liquid fuel as a fuel , characterized by comprising:a gas fuel injector for supplying the gas fuel to a combustion chamber of said internal combustion engine, or an intake path leading to said combustion chamber;an injector installing means for installing said gas fuel injector to a location which is a different location where an injector injecting the liquid fuel is installed; andan injector control unit which is separately provided from a previously provided engine control unit to a vehicle,wherein, said injector control unit comprises a program for controlling at least an injection amount, and an injection timing of the gas fuel at the gas fuel injector.2. A gas fuel supply kit used in a cylinder direct injection type internal combustion engine comprising a liquid fuel injector for directly injecting a liquid fuel to a cylinder , and an injector holding part for holding said liquid fuel injector in the cylinder , characterized by comprising:a liquid fuel injector installing means for relocating said liquid fuel injector to an intake manifold and for holding it there;a gas fuel injector, being installed to said injector holding part, for directly injecting the gas fuel to the cylinder; andan injector control unit which is separately provided from a previously provided engine control unit to a vehicle,wherein, said injector control unit comprises a program for acquiring injector pulse from said previously provided engine control unit to control at least an injection amount, and an injection timing of the gas fuel at the gas fuel injector.3. A gas fuel supply kit used in an internal combustion engine in which a liquid fuel injector for supplying a liquid fuel is installed to an intake ...

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Номер записи: 15
29-08-2013 дата публикации

DEVICE FOR INJECTING FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE

Номер: US20130220271A1
Автор: Graspeuntner Christian, Guggenbichler Franz, Unterberger Gerhard
Принадлежит: ROBERT BOSCH GMBH

A device for injecting fuel into the combustion chamber of an internal combustion engine with at least one injector includes an injector body equipped with a high-pressure accumulator, a nozzle needle axially displaceably guided in the injector and surrounded by a nozzle chamber, a high-pressure line connecting the high-pressure accumulator to the nozzle chamber, and a resonator line arranged in parallel with the high-pressure line and communicating with the nozzle chamber and opening into the high-pressure accumulator via a resonator throttle. The resonator line and the high-pressure line, at least in their sections adjacent the high-pressure accumulator, are formed in a retaining body which, on its end face, is screwed into the accumulator pipe forming the high-pressure accumulator. 1. A device for injecting fuel into the combustion chamber of an internal combustion engine with at least one injector comprisingan injector body equipped with a high-pressure accumulator,a nozzle chamber;a nozzle needle axially displaceably guided in the injector and surrounded by the nozzle chamber,a high-pressure line connecting the high-pressure accumulator to the nozzle chamber;a resonator throttle; anda resonator line arranged in parallel with the high-pressure line and communicating with the nozzle chamber and opening into the high-pressure accumulator via the resonator throttle,wherein the resonator line and the high-pressure line, at least in their sections adjacent the high-pressure accumulator, are formed in a retaining body which, on its end face, is screwed into the accumulator pipe forming the high-pressure accumulator.2. A device according to claim 1 , wherein the accumulator pipe has a conical seating; and the retaining body claim 1 , on its end face claim 1 , comprises a conical seating which cooperates with the conical seating on the accumulator pipe for sealing the connection between the retaining body and the accumulator pipe.3. A device according to claim 2 , ...

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Номер записи: 16
05-09-2013 дата публикации

Two Engine System With A Gaseous Fuel Stored In Liquefied Form

Номер: US20130228151A1
Автор: Dunn Mark E., LeBlanc Valerie N.
Принадлежит:

A gaseous fuelled two-engine system comprises a high pressure direct injection engine as the main power source and an auxiliary fumigated engine that can be fuelled with vapor removed from a storage tank that stores the gaseous fuel in liquefied form at cryogenic temperatures. The fuel supply system comprises a cryogenic pump for raising the pressure of the fuel to the injection pressure needed for the high pressure direct injection engine, and the cryogenic pump is powered by the auxiliary fumigated engine. 1. A gaseous fuelled two-engine system comprising:(a) a storage tank that is thermally insulated for holding a gaseous fuel in liquefied form;(b) a first outlet associated with a lower portion of said storage tank for delivering said gaseous fuel in liquefied form;(c) a second outlet associated with an upper portion of said storage tank for delivering said gaseous fuel in vaporized form;(d) a cryogenic pump comprising a suction inlet fluidly connected to said first outlet;(e) a drive for said cryogenic pump comprising a power supply;(f) a vaporizer having a fuel inlet fluidly connected to a discharge outlet of said cryogenic pump;(g) a first engine that is a direct injection gaseous-fuelled internal combustion engine comprising a fuel injector for injecting said gaseous fuel directly into a combustion chamber at pressures greater than 200 bar, said fuel injector receiving said gaseous fuel through a pipe that is in fluid communication with a vaporizer fuel outlet; and(h) a second engine that is a fumigated gaseous-fuelled internal combustion engine comprising a fuel injector for injecting said gaseous fuel into an intake air manifold that delivers intake air to a combustion chamber of said second engine, wherein said gaseous fuel that is supplied to said second engine is delivered through a pipe that is in fluid communication with said second outlet, and wherein said second engine is said power supply for said cryogenic pump drive.2. The gaseous fuelled two- ...

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Номер записи: 17
12-09-2013 дата публикации

APPLIED-IGNITION INTERNAL COMBUSTION ENGINE WITH CATALYTICALLY COATED INJECTION DEVICE, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

Номер: US20130233275A1
Автор: Berkemeier Oliver, Grieser Klemens, Hohenboeken Kay, Wojahn Jens
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Systems and methods are provided for reducing coking residues on an injection device of an applied-ignition, direct injection engine. An example system comprises an injection device; an electric heating device integrated with the injection device; a catalytic coating on a surface of the injection device; and a controller suitable to initiate a cleaning mode of the injection device wherein the electric heating device raises the temperature of the injection device. Heating the injection device allows coking residues on the injection device to oxidize in the presence of the catalytic coating. 1. An engine comprising:at least one cylinder;an ignition device for initiating applied-ignition;an injection device for directly injecting fuel into a combustion chamber of the at least one cylinder;a catalytic coating on at least a region of the injection device; andan electric heating device to heat the injection device.2. The engine as claimed in claim 1 , wherein less than one half of a surface of the injection device which projects into the combustion chamber has the catalytic coating.3. The engine as claimed in claim 1 , wherein less than one quarter of the surface of the injection device which projects into the combustion chamber has the catalytic coating.4. The engine as claimed in claim 1 , wherein less than one sixth of the surface of the injection device which projects into the combustion chamber has the catalytic coating.5. The engine as claimed in claim 1 , wherein the electric heating device is integrated into the injection device in such a way that a component temperature is increased substantially in a region of the catalytic coating.6. The engine as claimed in claim 1 , wherein the injection device is an injection nozzle.7. A method for an engine comprising:heating an injection device in a region of a catalytic coating on the injection device using an electric heating device.8. The method as claimed in claim 7 , wherein heating the injection device is initiated ...

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Номер записи: 18
10-10-2013 дата публикации

DIRECT-INJECTION INTERNAL COMBUSTION ENGINE

Номер: US20130263819A1
Автор: Mori Sachio
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An object of the present invention is to provide a direct-injection internal combustion engine capable of suppressing the occurrence of knocking and providing increased combustion stability. The internal combustion includes a supercharger for supercharging intake air that flows into the internal combustion engine, and a fuel injection valve for directly injecting fuel into a combustion chamber in the internal combustion engine. After an exhaust valve and an intake valve are opened during an exhaust stroke, the intake valve and the exhaust valve close at a timing advanced from an intake top dead center, and then the intake valve opens at a timing retarded from the intake top dead center during an intake stroke. The fuel injection valve injects the fuel during an interval between the intake top dead center and the retarded timing. 1. A direct-injection internal combustion engine comprising:a supercharger for supercharging intake air that flows into the internal combustion engine;a fuel injection valve for directly injecting fuel into a combustion chamber in the internal combustion engine;valve control means for closing an intake valve and an exhaust valve at a an advanced timing advanced from an intake top dead center after the exhaust valve and the intake valve are opened during an exhaust stroke and opening the intake valve at a retarded timing retarded from the intake top dead center during an intake stroke; andinjection control means for causing the fuel injection valve to inject the fuel during an interval between the intake top dead center and the retarded timing.2. The direct-injection internal combustion engine according to claim , wherein the cubic volume of the combustion chamber at the advanced timing is equal to the cubic volume of the combustion chamber at the retarded timing.3. The direct-injection internal combustion engine according to claim 1 , wherein the internal combustion engine is a lean-burn engine.4. The direct-injection internal combustion ...

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Номер записи: 19
10-10-2013 дата публикации

INTEGRATED LEAN BURN STABILIZERS

Номер: US20130263820A1
Автор: Jr. Robert C., Yu, Yu Ming-Li Hsu, Yu Robert C.
Принадлежит:

An integrated lean burn stabilizer (ILBS) for initiating combustion in an internal combustion engine by generating and introducing active free radicals into a combustion chamber is provided. Engines equipped with the ILBS can achieve a fuel efficient clean combustion processes with a lean and/or diluted mixture otherwise incapable of auto ignition and provide a controlled start of combustion, in conjunction with early in-cylinder direct injection, late diesel-like in-cylinder direct injection, and mixed fuel functions allowing control of the composition and stratification of the mixture. Controlled aspects of the fuel mixture include the equivalent ratio and fuel reactivity combinations inside the main combustion chamber, thereby allowing the start of combustion and duration of combustion inside the main combustion chamber be optimized for maximum cycle efficiency and specific power output while minimizing emissions. The early direct injection function of ILBS can also address the potential issue of homogeneity of port injected low-volatility fuel mixture entering the combustion chamber. 1. An integrated lean burn stabilizer (ILBS) for an internal combustion engine comprising: a housing having an interior chamber capable of receiving a ceramic sleeve and a nozzle adapted to provide at least one orifice for movement of a fuel/air mixture between the stabilizer and a combustion chamber , a plunger within the interior chamber , the plunger capable of extension and retraction to provide a reciprocal motion , such that when retracted , the plunger defines a single ILBS chamber within the interior of the ILBS nozzle ,wherein upon retraction of the plunger, a fuel/air mixture present within the combustion chamber is withdrawn through the nozzle into the ILBS chamber, and upon extension of the plunger, the fuel/air mixture present therein is compressed, forming and ejecting at least one active radical plume through the at least one orifice into the combustion chamber and ...

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Номер записи: 20
28-11-2013 дата публикации

Method and Devices for Process intensified Wall Integrated Operations for IC Engines

Номер: US20130312699A1
Автор: Segawa Enock N
Принадлежит:

Many IC engine inefficiencies are linked to the relatively low mixture formation rates of current injection methods. Process intensification (PI) is excellent at high mixture formation rates, high mass transfer rates, and short residence times, therefore a wall integrated injection method and device featuring PI has been provided. It allows increased number of injection sites and interfacial surface area between fluid jets and the volume of the squash area, hence high mixture formation rates shorter Liquid Lengths and the use of micro nozzles to further intensify the mixing process by locally mixing fuel and oxidant. This allows high EGR and low compression ratios and better control of HCCI start of ignition. PI effectively achieves thermo and species stratification for extending the load range of the HCCI engine while permitting effective water addition for reciprocating and turbine for lower exhaust heat and less fuel burned hence less CO2 emissions. 1. An intensified fluid injection device comprising:[a.] an annular body disposed in a combustion chamber, with an inside diameter aligned with that of the combustion chamber wherein said body is disposed;[b.] at least one annular fluid passage disposed in said annular body; and[c.] a multiplicity of fluid atomizing devices disposed on the inside diameter of said annular body and said fluid atomizing devices being in fluid communication with said annular fluid passage and being circumferentially arranged along the inside diameter of said annular body such that travel of fluid jets issuing therefrom advance towards a center of the combustion chamber, thereby increasing a number of injection sites and evenly spreading them around the cylinder wall;whereby a fluid issuing from the fluid atomizing devices is instantaneously transferred to and atomized in the combustion chamber, and the fluid's liquid phase is concentrated in the center of the combustion chamber and thereby an interfacial surface area between the fluid and ...

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Номер записи: 21
28-11-2013 дата публикации

RICH-LEAN BURNER

Номер: US20130312700A1
Автор: Oda Hiroshi
Принадлежит: Paloma Co., Ltd.

A rich-lean burner includes an inner cylinder to which lean gas, which is a mixture of gas and combustion air, is supplied, and an outer cylinder that is coaxially disposed around the inner cylinder such that rich gas, which is a mixture of gas and combustion air, is supplied between the inner cylinder and the outer cylinder. A burner head, which has small holes and whose diameter decreases toward the leading end, is provided on an opening of the inner cylinder. The burner head is obtained by forming a perforated metal, in which the small holes are arranged in a zigzag manner, into a conical shape. An interval between each of the small holes is two to three times the diameter of the small holes. The total area of the small holes is larger than the area of an upper end opening of an upper inner cylinder. 1. A rich-lean burner comprising:an inner cylinder to which lean gas is supplied, the lean gas being a mixture of gas and combustion air; andan outer cylinder that is coaxially disposed around the inner cylinder such that rich gas is supplied between the inner cylinder and the outer cylinder, the rich gas being a mixture of gas and combustion air,whereina protruding body, which has a plurality of small holes and whose diameter decreases toward a leading end of the protruding body, is provided on an opening of the inner cylinder.2. The rich-lean burner according to claim 1 , whereina total area or the small holes is equal to or more than an area of the opening of the inner cylinder.3. The rich-lean burner according to claim 1 , whereinan intermediate cylinder, which is communicatively connected with the inside of the inner cylinder and the lean gas is supplied thereto, is coaxially provided on an outer periphery of the inner cylinder, on an inner side of the outer cylinder.4. The rich-lean burner according to claim 2 , whereinan intermediate cylinder, which is communicatively connected with the inside of the inner cylinder and the lean gas is supplied thereto, is ...

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Номер записи: 22
28-11-2013 дата публикации

FUEL MANAGEMENT SYSTEM FOR VARIABLE ETHANOL OCTANE ENHANCEMENT OF GASOLINE ENGINES

Номер: US20130312701A1
Автор: Bromberg Leslie, Cohn Daniel R., Heywood John B.
Принадлежит: Massachusetts Institute of Technology

Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency of the engine 132-. (canceled)33. A turbocharged spark ignition engine that is fueled with a first fueling system that introduces fuel into a region outside of the cylinders and a second fueling system that injects fuel as a liquid directly into the cylinders;and where as torque is increased a fuel management system increases the amount of fuel provided by the second fueling system relative to fuel provided by the first fueling system so as to avoid knock;and where when the engine is operated at maximum torque the fuel air ratio is substantially stoichiometric and only the second fueling system is used;and where as the torque is decreased below a first selected value of torque only the first fueling system is used.34. The turbocharged spark ignition engine of where the amount of fuel provided the second fueling system relative to the amount of fuel provided by the first fueling system is determined by closed loop control using a knock detector.35. The turbocharged spark ignition engine of where the first selected value of torque is determined by closed loop control using a knock detector.36. The turbocharged spark ignition engine of claim 33 , where open loop control is used to determine the amount of fuel provided by the second fueling system to the fuel provided by the first ...

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Номер записи: 23
19-12-2013 дата публикации

INTERNAL COMBUSTION ENGINE HAVING A DIRECT INJECTION SYSTEM AND HAVING A PORT FUEL INJECTION SYSTEM

Номер: US20130333660A1
Автор: Bartsch Guenter, Berkemeier Oliver
Принадлежит:

A system and methods are provided to deactivate a cam driven fuel pump. The system comprises a direct fuel injection system; a port fuel injection system; a pump for the direct injection system driven by a cam, wherein the pump can be activated and deactivated as a function of the activation of the direct injection system. Deactivating a pump when no fuel is pumped through it minimizes wear on pump components and increases efficiency. 1. An internal combustion engine comprising:a direct fuel injection system;a port fuel injection system;a pump for the direct fuel injection system driven by a cam,a controller including memory holding instructions in memory to activate and deactivate the pump based on activation status of the direct fuel injection system.2. The engine as claimed in claim 1 , wherein the cam driving the pump is arranged on a crankshaft.3. The engine as claimed in claim 1 , wherein the cam driving the pump is arranged on an overhead camshaft.4. The engine as claimed in claim 1 , wherein the pump is claim 1 , for deactivation claim 1 , mechanically disengaged from rotary motion of the cam.5. The engine as claimed in claim 4 , further comprising a lost mechanism to mechanically disengage the pump from a drive system.6. The engine as claimed in claim 1 , wherein the pump and the port fuel injection system and a pump of the port fuel injection system are connected to a common tank for fuel.7. A method comprising:deactivating a pump for a direct fuel injection system by decoupling rotary motion of a cam powering the pump when the direct fuel injection system is deactivated;anticipating the activity of the direct fuel injection system; andactivating the pump when activation of the direct fuel injection system is anticipated.8. The method as claimed in claim 7 , wherein activating the pump occurs prior to activating the direct fuel injection system.9. The method as claimed in claim 7 , wherein decoupling rotary motion of the cam is by a lost motion mechanism. ...

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Номер записи: 24
19-12-2013 дата публикации

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

Номер: US20130333661A1
Автор: Fischer Juergen
Принадлежит: DAIMLER AG

In a method for operating an internal combustion engine with a plurality of combustion chambers, wherein a discrepancy between an actual operating performance and a target operating performance of at least one of the combustion chambers is detected, the ignition point is shifted in only the combustion chamber that has the discrepancy in order to influence combustion so as to compensate for the discrepancy. 11214161812141618. A method for operating an internal combustion engine with a plurality of combustion chambers ( , , , ) , wherein a discrepancy between an actual operating performance and a target operating performance in at least one of the combustion chambers ( , , , ) is detected , said method comprising the steps of:{'b': 12', '14', '16', '18, 'performing, in order to compensate for the discrepancy, at least one measure, which influences combustion in only the combustion chamber (,, , ) which has the discrepancy, and'}{'b': 10', '30', '30', '12', '14', '16', '18', '36, 'during a lean operation (stratified operation/homogeneous stratified operation) of the internal combustion engine () compensating for the discrepancy by shifting an ignition point (, ′) of the combustion chamber (, , , ) that has the discrepancy so as to be at a different point from a top ignition dead center position ().'}224283412141618. The method according to claim 1 , wherein to compensate for the discrepancy claim 1 , at least one measure is carried out claim 1 , which influences the injection of an amount ( claim 1 , claim 1 , ) of fuel injected into the combustion chamber ( claim 1 , claim 1 , claim 1 , ) that has the discrepancy.324283412141618. The method according to claim 2 , wherein to compensate for the discrepancy claim 2 , the amount ( claim 2 , claim 2 , ) of fuel which is injected claim 2 , into the combustion chamber ( claim 2 , claim 2 , claim 2 , ) that has the discrepancy is adjusted.424283412141618. The method according to claim 2 , wherein to compensate for the ...

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Номер записи: 25
02-01-2014 дата публикации

METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE

Номер: US20140000553A1
Автор: DIELER Torsten, Haase Dirk, Herweg Ruediger
Принадлежит: DAIMLER AG

An operating mode of an internal combustion engine, in particular a directly injected internal combustion engine featuring a plurality of combustion chambers, in particular for a direct-injection gasoline engine for a motor vehicle, an operating mode having at least in part low-NOx combustion (NAV) and having a plurality of partial operating modes wherein it is switched between another partial operating mode and a NAV partial operating mode, wherein in the case of said NAV partial operating mode, at an ignition point (ZZP) a largely homogeneous, lean fuel/exhaust gas/air mixture having a combustion air ratio of λ≧1 is spark ignited in the respective combustion chamber by means of an ignition device, and where a flame front combustion (FFV) initiated by the spark-ignition transitions to a controlled auto-ignition (RZV). 1. Operating mode for an , in particular direct-injection , internal combustion engine with exhaust gas recirculation , in particular for a direct injection gasoline engine , comprising:wherein a RZV partial operating mode is implemented in a region of the engine characteristics map having low to medium speed and/or low to medium load, said RZV partial operating mode having a lean fuel/exhaust gas/air mixture that is ignited by compression ignition and combusts by controlled auto-ignition (RZV),wherein the region of the engine characteristics map with compression ignition is bordered at higher load by another region of the engine characteristics map in which low-NOx combustion (NAV) is performed,wherein at an ignition point (ZZP) a homogeneous, lean fuel/exhaust gas/air mixture with combustion air ratio λ≧1 in a given combustion chamber of the internal combustion engine is spark ignited by means of an ignition device,wherein a flame front combustion (FFV) initiated by the spark ignition transitions to controlled auto-ignition (RZV),wherein it is switched between at least one other partial operating mode and a NAV partial operating mode wherein a ...

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Номер записи: 26
02-01-2014 дата публикации

CONTROL DEVICE FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINE

Номер: US20140000554A1
Автор: Katou Naozumi, Takaki Daisuke, TSUYUKI Takeshi
Принадлежит:

Provided is a control device for a multi-cylinder internal combustion engine, including: a supercharger to be driven by exhaust gas energy; and a fuel injection control unit, in which the fuel injection control unit sets a fuel injection amount for one cylinder so that an air/fuel ratio in the one cylinder is richer than a theoretical air/fuel ratio, and exhaust gas exhausted when the one cylinder is in an exhaust stroke and scavenging gas scavenged during a valve overlap period from another cylinder which is in an intake stroke when the one cylinder is in the exhaust stroke are mixed in an exhaust pipe so as to attain an air/fuel ratio facilitating combustion. 1. A control device for a multi-cylinder internal combustion engine , comprising:a supercharger to be driven by exhaust gas energy; anda fuel injection control unit,wherein the fuel injection control unit sets a fuel injection amount for one cylinder so that an air/fuel ratio in the one cylinder is richer than a theoretical air/fuel ratio, and exhaust gas exhausted when the one cylinder is in an exhaust stroke and scavenging gas scavenged during a valve overlap period from another cylinder which is in an intake stroke when the one cylinder is in the exhaust stroke are mixed in an exhaust pipe so as to attain a desired air/fuel ratio.2. The control device for a multi-cylinder internal combustion engine according to claim 1 , wherein the fuel injection control unit sets the fuel injection amount for the one cylinder based on a new air amount when an intake stroke of the one cylinder finishes and a new air amount in the scavenging gas scavenged from the another cylinder which is in the intake stroke when the one cylinder is in the exhaust stroke.3. The control device for a multi-cylinder internal combustion engine according to claim 1 , wherein the fuel injection control unit provides such control that the fuel injection amount is injected by a fuel injection once in one stroke.4. The control device for a multi- ...

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Номер записи: 27
16-01-2014 дата публикации

METHOD AND DEVICE FOR CONTROLLING A FOUR-STROKE INTERNAL COMBUSTION ENGINE

Номер: US20140014062A1
Автор: Yacoub Yasser Mohamed sayed
Принадлежит:

A system is disclosed for a four-stroke internal combustion engine comprising: at least two cylinders; a fuel direct injection device; a variable valve timing system; an engine controller to control valve timing according to load; wherein, below a lower load threshold, a first cylinder is deactivated, an injection of fuel takes place into a combustion chamber of the first cylinder and an inlet valve of the first cylinder is open during a compression stroke. The opening of the inlet valve during a compression stroke of the first cylinder when deactivated allows the substantially homogenous air-fuel mixture therein to escape into the intake manifold and be made available to the second and active cylinder. 2. The system as claimed in claim 1 , wherein the inlet valve of the first cylinder is open at least temporarily at the same time as an inlet valve of a second cylinder during an intake stroke of the second cylinder.3. The system as claimed in claim 1 , wherein the inlet valve of the first cylinder is open for substantially an entire duration of the compression stroke of the first cylinder.4. The system as claimed in claim 1 , wherein an injection of fuel takes place during an expansion stroke of the first cylinder.5. The system as claimed in claim 1 , wherein the first cylinder is deactivated by discontinuing spark ignition.6. The system as claimed in claim 1 , further comprising a second cylinder which is active claim 1 , even below a lower load threshold claim 1 , wherein the inlet valve of the second cylinder is closed during a compression stroke.7. The system as claim in claim 1 , wherein the at least two cylinders comprises four cylinders.8. The system as claimed in claim 7 , wherein the first cylinder comprises a first and a third cylinder in a firing order and a second cylinder comprises a second and fourth cylinder claim 7 , such that first and the second cylinders are repeated twice in a four cylinder engine.9. A method for an engine claim 7 , comprising: ...

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Номер записи: 28
20-02-2014 дата публикации

Internal combustion engine

Номер: US20140048036A1
Автор: Bernd Lamparter, Christian Krauser, Herbert Zoeller, Thomas Koch
Принадлежит: DAIMLER AG

An internal combustion engine ( 1 ), preferably for a motor vehicle, having at least one cylinder ( 2 ) which encloses a combustion chamber ( 3 ) and in which a piston ( 4 ) is situated in such a way that it may perform a stroke movement, and having at least one injector ( 5 ) per cylinder for injecting fuel into the combustion chamber ( 3 ). The respective injector ( 5 ) has multiple injection openings ( 9, 10 ) through which the fuel exits from the injector ( 5 ) and enters into the combustion chamber ( 3 ). To be able to react more fuel, first injection openings ( 9 ) and second injection openings ( 10 ) are situated relative to one another in such a way that first injection jets ( 15 ) from the first injection openings ( 9 ) reach the piston ( 4 ) essentially without contacting second injection jets ( 18 ) from the second injection openings ( 10 ).

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Номер записи: 29
06-03-2014 дата публикации

Two-stage precombustion chamber for large bore gas engines

Номер: US20140060479A1
Автор: David Thomas Lepley, Luigi P. Tozzi, Maria Emmanuella Sotiropoulou
Принадлежит: Prometheus Applied Technologies LLC

In certain embodiments, a two-stage precombustion chamber may be used to reduce engine NOx levels, with fueled precombustion chambers, while maintaining comparable engine power output and thermal efficiency. One or more fuel admission points may be located in either the first prechamber stage or the second prechamber stage. A more efficient overall combustion characterized by low levels of NOx formation may be achieved by a two-stage precombustion chamber system while generating very high energy flame jets emerging from the second prechamber stage into the main combustion chamber. A first prechamber stage may be substantially smaller than a second prechamber stage. The volumes and aspect ratios of the two prechamber stages, along with the location of the electrodes within the first stage prechamber, the holes patterns, angles and the separate fueling, may be selected to create a distribution of fuel concentration that is substantially higher in the first stage prechamber compared to the second prechamber stage.

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Номер записи: 30
01-01-2015 дата публикации

MODEL-BASED TRANSIENT FUEL INJECTION TIMING CONTROL METHODOLOGY

Номер: US20150000632A1
Автор: Haskara Ibrahim, Wang Yue-Yun
Принадлежит:

A method for controlling a direct-injection internal combustion engine includes monitoring internal combustion engine operational parameters, determining a start of injection in response to the engine operational parameters, monitoring an intake air flow comprising a residual gas component, monitoring an exhaust gas flow, monitoring a fuel flow, determining a time constant corresponding to an intake air flow reaction time based upon the intake air flow, the exhaust gas flow, and the fuel flow, modifying the start of injection with the time constant, and operating the engine subject to the modified start of injection. 1. Method for controlling a direct-injection internal combustion engine , comprising:monitoring internal combustion engine operational parameters and determining a start of injection in response to the engine operational parameters;monitoring an operator torque request and detecting a fast transient from the operator torque request;monitoring an intake air flow comprising a residual gas component;monitoring an exhaust gas flow;monitoring a fuel flow;monitoring an engine speed;monitoring a volumetric efficiency of the engine;determining a time constant predicated upon the monitored fast transient and corresponding to an intake air flow reaction time based upon the intake air flow, the exhaust gas flow, the fuel flow, the engine speed, and the volumetric efficiency of the engine;modifying the start of injection with the time constant predicated upon the monitored fast transient; andoperating the engine subject to the modified start of injection.2. The method of claim 1 , wherein monitoring an intake air flow comprising the residual gas component comprises determining the residual gas component within the intake air flow resulting from an internal exhaust gas recirculation.3. The method of claim 1 , wherein monitoring an intake air flow comprising the residual gas component comprises determining the residual gas component within the intake air flow ...

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Номер записи: 31
05-01-2017 дата публикации

CONTROL SYSTEM FOR SPARK-IGNITION INTERNAL COMBUSTION ENGINE

Номер: US20170002724A1
Автор: KIMURA Koshiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A control system for a spark-ignition internal combustion engine configured to produce tumble flow in a cylinder is provided. The spark-ignition internal combustion engine includes an ignition plug configured to ignite an air-fuel mixture in the cylinder. The control system includes a tumble flow rate controller configured to change a position of a vortex center of the tumble flow as viewed in a direction of a center axis of the cylinder, so as to control a flow rate of the tumble flow around the ignition plug at the ignition timing of the ignition plug. 1. A control system for a spark-ignition internal combustion engine , the spark-ignition internal combustion engine configured to produce tumble flow in a cylinder , and the spark-ignition internal combustion engine including an ignition plug configured to ignite an air-fuel mixture in the cylinder , the control system comprising:a tumble flow rate controller configured to change a position of a vortex center of the tumble flow in a direction of a center axis of the cylinder, so as to control a flow rate of the tumble flow around the ignition plug at the ignition timing of the ignition plug.2. The control system according to claim 1 , whereinthe tumble flow rate controller is configured to increase the flow rate of a part of the tumble flow at a first point in time, the first point in time being determined such that said part of the tumble flow reaches a position opposite to the ignition plug with respect to the vortex center of the tumble flow, when the ignition timing comes after the flow rate of said part of the tumble flow is increased.3. The control system according to claim 2 , wherein:the internal combustion engine includes a fuel injection valve configured to inject a fuel into the cylinder such that the injected fuel flows along the tumble flow; andthe tumble flow rate controller is configured to cause the fuel injection valve to inject the fuel during an intake stroke or a compression stroke, so as to ...

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Номер записи: 32
04-01-2018 дата публикации

FUEL SUPPLY SYSTEM FOR AN ENGINE WITH AN ELECTRIC IGNITION POWER SOURCE

Номер: US20180003136A1
Автор: Coldren Dana, Cox Glenn, Ginter David, Stockner Alan, Willi Martin
Принадлежит: CATERPILLAR INC.

A fuel supply system for a reciprocating-piston engine includes a storage tank; a wall of the storage tank defining a first aperture and a second aperture therethrough; a first fuel injector fluidly coupled with the first aperture of the storage tank via a pressure control module and a first fuel injector supply conduit; a pump fluidly coupled with the second aperture of the storage tank; and a second fuel injector fluidly coupled with an outlet port of the pump via a second fuel injector supply conduit. The pressure control module is configured to maintain a pressure in the first fuel injector supply conduit within a pressure range that includes a pressure value that is less than a pressure inside the storage tank. The pump is configured to maintain a pressure inside the second fuel injector supply conduit that is greater than the pressure inside the first fuel injector supply conduit. 1. A fuel supply system for a reciprocating-piston engine , the fuel supply system comprising:a storage tank, a wall of the storage tank defining a first aperture and a second aperture therethrough, the first aperture being distinct from the second aperture;a first fuel injector fluidly coupled with the first aperture of the storage tank via a pressure control module and a first fuel injector supply conduit, the first fuel injector supply conduit being disposed fluidly in series between the pressure control module and first fuel injector,the pressure control module being configured to maintain a pressure in the first fuel injector supply conduit within a pressure range that includes a pressure value that is less than a pressure inside the storage tank;a pump fluidly coupled with the second aperture of the storage tank; anda second fuel injector fluidly coupled with an outlet port of the pump via a second fuel injector supply conduit, the pump being configured to maintain a pressure inside the second fuel injector supply conduit that is greater than the pressure inside the first fuel ...

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Номер записи: 33
04-01-2018 дата публикации

INTERNAL COMBUSTION ENGINE WITH INJECTION DEVICE ARRANGED IN THE CYLINDER BARREL, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

Номер: US20180003140A1
Автор: Breuer Albert, Khosravi Maziar, Lorenz Thomas, Ruhland Helmut Hans
Принадлежит:

Examples are directed to a fuel injection device positioned in a cylinder liner. In one example, a cylinder includes a combustion chamber which is jointly formed by a piston crown of a piston, by a cylinder barrel which laterally delimits the combustion chamber, and by a cylinder head. The cylinder includes an injection device positioned in the cylinder barrel for direct introduction of fuel into the combustion chamber, which injection device has at least one opening which, during a course of an injection process, is configured to be activated to introduce fuel into the combustion chamber, the injection device terminating flush, at a combustion chamber side, with the cylinder barrel. 1. A direct-injection internal combustion engine comprising:a cylinder head with a cylinder, the cylinder having at least one inlet opening for supply of combustion air via an intake system and at least one outlet opening for discharge of the exhaust gases via an exhaust-gas discharge system, the cylinder further comprising a combustion chamber which is jointly formed by a piston crown of a piston, by a cylinder barrel which laterally delimits the combustion chamber, and by the cylinder head, the piston being movable along a piston longitudinal axis between a bottom dead center and a top dead center; andan injection device positioned in the cylinder barrel for direct introduction of fuel into the combustion chamber, which injection device has at least one opening which, during a course of an injection process, is configured to be activated to introduce fuel into the combustion chamber, the injection device terminating flush, at a combustion chamber side, with the cylinder barrel.2. The direct-injection internal combustion engine as claimed in claim 1 , wherein the injection device terminates flush with the cylinder barrel without forming a dead volume.3. The direct-injection internal combustion engine as claimed in claim 2 , wherein the injection device is of cylindrical form at the ...

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Номер записи: 34
07-01-2021 дата публикации

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

Номер: US20210003084A1
Автор: Bromberg Leslie, Cohn Daniel R., Heywood John B.
Принадлежит:

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

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Номер записи: 35
08-01-2015 дата публикации

Hybrid Cycle Combustion Engine and Methods

Номер: US20150007793A1
Автор: Alexander C. Shkolnik, Nikolay Shkolnik
Принадлежит: Liquidpiston Inc

A method of operating an internal combustion engine having a housing with a recess, and a piston rotatably mounted in the housing, wherein the housing and the piston form, over the course of shaft rotation, initial, second and third volumes in differing amounts for the phases of compression, combustion and expansion, in a manner that is smooth and continuous, which method includes (a) compressing air into a chamber formed by the recess and the piston, (b) introducing fuel into the chamber of compressed air, and (c) igniting the mixture of compressed air and fuel.

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Номер записи: 36
09-01-2020 дата публикации

CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

Номер: US20200011261A1
Автор: Okubo Naoya
Принадлежит:

A controller for an internal combustion engine is configured to execute: a process of switching the injection mode according to an engine operational state; an anomaly determination process of determining whether there is an anomaly in the injection system that is implementing a single injection mode during implementation of the single injection mode; a provisional determination process of provisionally determining whether there may be an anomaly in the injection system that is implementing the single injection mode during the implementation of the single injection mode; and an idle determination process of, if it is determined that there is an anomaly in the provisional determination process, prohibiting the automatic stop and executing, during an idle operation, the anomaly determination process by implementing an injection mode that uses only the injection system provisionally determined to have an anomaly in the provisional determination process. 1. A controller for an internal combustion engine , the engine including a direct injection system having a direct injection valve , which injects fuel into a combustion chamber , and a port injection system having a port injection valve , which injects fuel to an intake port , the engine being configured to perform automatic stop , the controller being configured toexecute a process of switching, according to an engine operational state, among a direct injection mode, in which fuel is injected only from the direct injection valve, a port injection mode, in which fuel is injected only from the port injection valve, and a dual injection mode, in which fuel is injected from both the direct injection valve and the port injection valve,when the direct injection mode and the port injection mode are each defined as a single injection mode, execute an anomaly determination process of determining whether there is an anomaly in the injection system that is implementing the single injection mode during implementation of the ...

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Номер записи: 37
03-02-2022 дата публикации

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

Номер: US20220034272A1
Автор: Bromberg Leslie, Cohn Daniel R., Heywood John B.
Принадлежит:

Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline. 1. A fuel management system for spark ignition engine where the fuel management system controls fueling from a first fueling system that directly injects fuel into at least one cylinder as a liquid and increases knock suppression by evaporative cooling and from a second fueling system that injects fuel into a region outside of the cylinder;and where there is a range of torque where both fueling systems are used at the same value of manifold pressure;and where a fraction of fuel in the cylinder that is introduced by the first fueling system increases with increasing manifold pressure so as to prevent knock by providing increased knock resistance;and where the fuel management system controls the change in the fraction of fuel introduced by the first fueling system using closed loop control that utilizes a sensor that detects knock and where open loop control is also used;and where the open loop control uses an engine map lookup table;and where open loop control is used during transients.2. The fuel management system of where the maximum knock suppression that is employed is provided by a combination of fueling from the first and second fueling systems.3. The fuel management system of or where use of the second fueling system in addition to the first fueling system is employed to obtain combustion stability.4. The fuel management system of where fuel from the first fueling system is introduced when the engine torque is above a selected value.5. The fuel ...

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Номер записи: 38
18-01-2018 дата публикации

Fuel management system for variable ethanol octane enhancement of gasoline engines

Номер: US20180016998A1
Автор: Daniel R. Cohn, John B. Haywood, Leslie Bromberg
Принадлежит: Massachusetts Institute of Technology

Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency or the engine.

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Номер записи: 39
17-04-2014 дата публикации

INTERNAL COMBUSTION ENGINE WHICH CAN BE OPERATED WITH LIQUID AND WITH GASEOUS FUEL AND A METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF THIS KIND

Номер: US20140102405A1
Автор: Kramer Ulrich, Weber Carsten, Wirth Martin
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

The application describes a system for an engine comprising a direct injection nozzle for injecting gaseous fuel into a cylinder of an engine in a second operating mode; an intake injection nozzle for injecting liquid fuel into an intake port of the engine in a first operating mode; and a valve gear suitable to adjust timing of opening and closing of an inlet valve. Preferential injection of a gaseous fuel such as compressed natural gas directly into the cylinder increases efficiency and allows for reduced heat exposure to the lesser used liquid gas injectors mounted in the intake port, reducing coking of these injectors. 1. An internal combustion engine comprising:at least one cylinder;at least one inlet port;a direct injection system for introducing gaseous fuel into the at least one cylinder in a second operating mode; andan intake pipe injection for introducing liquid fuel into an intake system in a first operating mode.2. The internal combustion engine as claimed in claim 1 , further comprising a valve gear comprising at least one inlet valve for the at least one inlet port and a valve actuating device for actuating the at least one inlet valve.3. The internal combustion engine as claimed in claim 2 , wherein the valve gear can adjust a time at which the at least one inlet valve closes.4. The internal combustion engine as claimed in claim 2 , wherein the valve gear can adjust the time at which the at least one inlet valve closes without changing an opening time at which the at least one inlet valve opens.5. The internal combustion engine as claimed in claim 1 , further comprising a compression ratio of the at least one cylinder which can be modified.6. The internal combustion engine as claimed in claim 5 , wherein the compression ratio is modified by altering the time at which the least one inlet valve opens and closes.7. The internal combustion engine as claimed in claim 5 , wherein the compression falls between 10 and 16.8. The internal combustion engine as ...

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Номер записи: 40
17-04-2014 дата публикации

INTEGRATED FUEL INJECTOR IGNITERS CONFIGURED TO INJECT MULTIPLE FUELS AND/OR COOLANTS AND ASSOCIATED METHODS OF USE AND MANUFACTURE

Номер: US20140102407A1
Автор: Larsen Melvin James, McAlister Roy Edward
Принадлежит: McAlister Technologies, LLC

Embodiments of injectors configured for adaptively injecting multiple different fuels and coolants into a combustion chamber, and for igniting the different fuels, are disclosed herein. An injector according to one embodiment includes a body having a first end portion and a second end portion. The injector further includes a first flow channel extending through the body, and a second flow channel extending through the body that is separate from the first flow channel and electrically isolated from the first flow channel. The first flow channel is configured to receive a first fuel, and the second flow channel is configured to receive at least one of a second fuel and a coolant. The injector further comprises a valve carried by the body that is movable between a closed position and an open position to introduce at least one of the second fuel and the coolant into a combustion chamber. 1. An injector comprising: a base portion configured to receive a first fuel and at least one of a second fuel and a coolant into the body; and', 'a nozzle portion coupled to the base portion, wherein the nozzle portion is configured to be positioned proximate to a combustion chamber for injecting the first fuel and at least one of the second fuel and the coolant into the combustion chamber;, 'an injector body including—'}a valve seal positioned at or proximate to the nozzle portion;an ignition rod extending from the base portion to the nozzle portion;a valve coaxially disposed over at least a portion of the ignition rod, wherein the valve includes a sealing head and moves between an open position in which the sealing head is spaced apart from the valve seal, and a closed position in which the sealing head at least partially contacts the valve seal;a first flow channel extending longitudinally through a center portion of the ignition rod, wherein the first flow channel is configured to deliver the first fuel to the nozzle portion;a second flow channel fluidly separated from the first ...

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Номер записи: 41
26-01-2017 дата публикации

METHOD AND COMPOSITIONS THAT PROVIDE DETERGENCY

Номер: US20170022438A1
Автор: Arters David C., Barbour Robert H.
Принадлежит:

The present invention relates to methods of fueling an internal combustion engine, and composition, that provide improved nitrogen-free detergency in the engine, particularly in the area of injector deposit control. The present invention also provides methods of providing both improved detergency and improved corrosion inhibition, while avoiding compatibility problems with fuels and/or while limiting the amount of nitrogen delivered to the fuel from the deposit control additive. 1. A fuel composition comprising:(a) a fuel; (i) hydrocarbyl substituted succinic anhydrides;', '(ii) hydrolyzed hydrocarbyl substituted succinic anhydrides; or', '(iii) combinations thereof; and, '(b) a nitrogen-free additive comprising at least one of'}(c) at least one nitrogen-containing dispersant.2. The fuel composition of claim 1 , wherein said nitrogen-free additive comprises (b) hydrolyzed hydrocarbyl substituted succinic anhydrides.3. The fuel composition of claim 1 , wherein the substituted hydrocarbon is a hydrocarbyl substituted acylating agent with di-acid functionality.4. The fuel composition of claim 3 , wherein the hydrocarbyl group of the substituted acylating agent is derived from a hydrocarbon which has a number average molecular weight (M) of at least about 300.5. The fuel composition of claim 3 , wherein the hydrocarbyl group of the substituted acylating agent comprises a polyisobutylene group.6. The fuel composition of claim 1 , wherein said nitrogen-containing dispersant comprises a succinimide dispersant.7. The fuel composition of claim 1 , wherein said nitrogen-containing dispersant comprises a Mannich base.8. The fuel composition of claim 1 , wherein said nitrogen-containing dispersant comprises a quaternary salt.9. The fuel composition of claim 1 , wherein the fuel composition comprises less than 5 claim 1 ,000 ppm of said nitrogen-containing dispersant.10. The fuel composition of claim 1 , wherein the fuel composition comprises diesel fuel claim 1 , biodiesel or ...

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Номер записи: 42
25-01-2018 дата публикации

PISTON

Номер: US20180023454A1
Автор: Chang David Yu-Zhang, Gong Weidong
Принадлежит: CATERPILLAR INC.

A piston for an engine is provided. The piston includes a body having a crown disposed about a central axis. The crown includes an inner circumference and an outer circumference. The piston includes a central chamber transversely disposed within the body and recessed with respect to the crown. The piston includes a central mound disposed within the central chamber about the central axis. The piston also includes a bowl extending from the central mound towards the crown. The piston further includes a passageway provided on the inner circumference of the crown. The passageway includes a slot defined by a first surface inclined at a first angle with respect to the central axis. The slot is adapted to allow flow of a fuel from the central chamber towards the outer circumference of the crown. 1. A piston for an engine , the piston comprising:a body having a crown disposed about a central axis, the crown having an inner circumference and an outer circumference;a central chamber transversely disposed within the body and recessed with respect to the crown;a central mound disposed within the central chamber about the central axis;a bowl extending from the central mound towards the crown; anda passageway provided on the inner circumference of the crown, the passageway including a slot defined by a first surface inclined at a first angle with respect to the central axis, wherein the slot is adapted to allow flow of a fuel from the central chamber towards the outer circumference of the crown.2. The piston of further including a plurality of the slots provided in a spaced apart arrangement from each other along the inner circumference of the crown.3. The piston of claim 1 , wherein the passageway further includes a second surface and a third surface such that the slot defined by the first surface claim 1 , the second surface claim 1 , and the third surface has a triangular configuration.4. The piston of claim 1 , wherein the first angle is between 30° and 60°.5. The piston of ...

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Номер записи: 43
05-02-2015 дата публикации

ENGINE COMBUSTION CONTROL AT LOW LOADS VIA FUEL REACTIVITY STRATIFICATION

Номер: US20150034045A1
Автор: Hanson Reed M., Kokjohn Sage, Reitz Rolf Deneys, Splitter Derek A.
Принадлежит:

A compression ignition (diesel) engine uses two or more fuel charges during a combustion cycle, with the fuel charges having two or more reactivities (e.g., different cetane numbers), in order to control the timing and duration of combustion. By appropriately choosing the reactivities of the charges, their relative amounts, and their timing, combustion can be tailored to achieve optimal power output (and thus fuel efficiency), at controlled temperatures (and thus controlled NOx), and with controlled equivalence ratios (and thus controlled soot). At low load and no load (idling) conditions, the aforementioned results are attained by restricting airflow to the combustion chamber during the intake stroke (as by throttling the incoming air at or prior to the combustion chamber's intake port) so that the cylinder air pressure is below ambient pressure at the start of the compression stroke. 2. The method of wherein the fuel and the material define a stratified distribution of fuel reactivity within the combustion chamber during the engine combustion cycle claim 1 , with regions of highest fuel reactivity being spaced from regions of lowest reactivity.3. The method of wherein:a. one or more of the fuel and the material are supplied into the combustion chamber in a first fuel charge; (1) is supplied into the combustion chamber subsequent to the first fuel charge, and', '(2) has a reactivity different from the reactivity of the first fuel charge., 'b. one or more of the fuel and the material are supplied into the combustion chamber in a second fuel charge, wherein the second fuel charge4. The method of wherein the second fuel charge is supplied into the combustion chamber between:a. the start of the compression stroke, andb. 40 degrees prior to Top Dead Center (TDC).5. The method of wherein the fuel and the material are supplied to the combustion chamber at different times during the engine combustion cycle.6. The method of wherein:a. the fuel from the first supply is ...

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Номер записи: 44
17-02-2022 дата публикации

Engine Piston, Engine, Hand-Held Tool, and Method of Manufacturing an Engine Piston

Номер: US20220049642A1
Автор: Assarsson Henrik, Lönn Johan
Принадлежит:

A two-stroke engine piston () is disclosed comprising a piston top (), a mantle surface (), a stratified scavenging channel () in the mantle surface (), and a weight reduction space () arranged between the piston top () and the stratified scavenging channel (). The weight reduction space () has a largest first axial extent (a) at the mantle surface () and a second axial extent (a) radially inside the mantle surface (), and wherein the second axial extent (a) is greater than the largest first axial extent (a). The present disclosure further relates to an engine (), a hand-held tool (), and a method of manufacturing an engine piston (). 1. A two-stroke engine piston comprising:a piston top,a mantle surface,a stratified scavenging channel in the mantle surface, anda weight reduction space arranged between the piston top and the stratified scavenging channel,wherein the weight reduction space has a largest first axial extent at the mantle surface and a second axial extent radially inside the mantle surface, andwherein the second axial extent is greater than the largest first axial extent.2. The piston according to claim 1 , wherein the second axial extent is at least 10% greater than the largest first axial extent.3. The piston according to claim 2 , wherein the second axial extent is at least 80% greater than the largest first axial extent.4. The piston according to claim 1 , wherein the weight reduction space comprises a first uppermost delimiting surface at the mantle surface and a second upper delimiting surface radially inside the mantle surface claim 1 , and wherein the second upper delimiting surface is arranged closer to the piston top than the first uppermost delimiting surface.5. The piston according to claim 1 , wherein the piston comprises a first piston ring recess in the mantle surface claim 1 , and wherein the weight reduction space extends radially inside the first piston ring recess.6. The piston according to claim 5 , wherein the piston comprises a ...

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Номер записи: 45
30-01-2020 дата публикации

INTERNAL COMBUSTION ENGINE CONTROL DEVICE

Номер: US20200032735A1
Автор: Arihara Yoshinobu, ITAYA Takaki, Ogata Kenichiroh, OOBA Hisahiro
Принадлежит: Hitachi Automotive Systems, Ltd.

In an internal combustion engine which performs a homogeneous lean combustion mode and a stratified lean combustion mode, there is provided a new internal combustion engine control device capable of obtaining a stable combustion state by decreasing influences of delay of an air flow and a degree of change of a transient state and smoothly performing switching between the homogeneous lean combustion mode and the stratified lean combustion mode. Accordingly, in the present invention, when switching between the stratified lean mode in which a compression stroke injection is performed by a direct injection injector and the homogeneous lean combustion mode in which an intake stroke injection is performed by the direct injection injector is performed, a predetermined delay time Δt is provided from at least a switching operation of a tumble control valve , a switching operation between the compression stroke injection and the intake stroke injection is performed, and the delay time Δt is set so as to correspond to a magnitude of the degree of change ΔL of the transient state. A switching timing between the compression stroke injection and the intake stroke injection is controlled according to the flow delay of an air control system such as the tumble control valve and the degree of change ΔL of the transient state, and thus, it is possible to improve combustion stability in a combustion chamber. 1. An internal combustion engine control device which is used in an internal combustion engine for injecting a fuel from a direct injection injector to a combustion chamber and includes a control means which performs switching between a stratified lean combustion mode in which a compression stroke injection is performed and a homogeneous lean combustion in which an intake stroke injection is performed ,wherein when the switching between the stratified lean combustion mode and the homogeneous lean combustion mode is performed, the control means performs a switching operation between ...

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Номер записи: 46
05-02-2015 дата публикации

FUEL INJECTION SYSTEMS WITH ENHANCED CORONA BURST

Номер: US20150037738A1
Автор: McAlister Roy Edward
Принадлежит:

Methods, systems, and devices are disclosed for delivery a fluidic substance using Lorentz forces. In one aspect, a method to accelerate particles into a chamber includes distributing a fluidic substance between electrodes configured at a location proximate a chamber, in which electrodes include a low work function material, generating a current of ionized particles by applying an electric field between the electrodes to ionize at least some of the fluidic substance, and producing a Lorentz force to accelerate the ionized particles into the chamber. In some implementations, the method further includes applying an electric potential on an antenna electrode interfaced at the port to induce a corona discharge into the chamber, in which the corona discharge ignites the ionized particles within the chamber. 1. A method to produce an ignition in a chamber , comprises:generating a positive corona discharge at a predetermined location in a chamber;producing a Lorentz force to thrust ions into the chamber; andgenerating a negative corona discharge at the or another predetermined location proximate the port toward the chamber at a faster rate than that of the positive corona discharge,wherein the negative corona discharge combines with the positive corona discharge to ignite of an ignitable substance in the chamber.2. The method of claim 1 , wherein the chamber contains a fluidic substance present in the chamber claim 1 , the fluidic substance including at least one of a fuel or an oxidant.3. The method of claim 1 , wherein the generating the positive corona discharge at the predetermined location includes applying an electric field at a corona-generating electrode positioned proximate to the port of the chamber.4. The method of claim 3 , wherein the corona-generating electrode comprises a high work function material.5. The method of claim 3 , wherein the corona-generating electrode is structured to include a plurality of electrodes having at least two different structural ...

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Номер записи: 47
12-02-2015 дата публикации

METHODS FOR JOULE-THOMPSON COOLING AND HEATING OF COMBUSTION CHAMBER EVENTS AND ASSOCIATED SYSTEMS AND APPARATUS

Номер: US20150040848A1
Автор: McAlister Roy Edward
Принадлежит: McAlister Technologies, LLC

A method for operating an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke. The method comprises direct injecting a first substance having a positive Joule-Thompson coefficient into the combustion chamber during a compression stroke, thereby reducing an amount of work otherwise may be used to perform the compression stroke and direct injecting a second substance having a negative Joule-Thompson coefficient into the combustion chamber during a power stroke, thereby increasing an amount of work otherwise produced from the power stroke. 1. A method for operating an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke , the method comprising:injecting a substance into the combustion chamber during a compression stroke at a temperature that is between about 100° C. and about 1000° C. less than a temperature inside the combustion chamber, thereby reducing an amount of work otherwise required to perform the compression stroke.2. The method of claim 1 , further comprising conditioning the substance prior to injection such that the substance undergoes a phase change upon injection.3. A method for operating an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke claim 1 , the method comprising:expanding a first substance having a positive Joule-Thompson coefficient into the combustion chamber during a compression stroke, thereby reducing an amount of work otherwise required to perform the compression stroke.4. The method of claim 3 , further comprising pre-cooling the first substance prior to expanding into the combustion chamber.5. The method of claim 3 , further comprising introducing the first substance at a temperature that is between about 100° C. and about 1000° C. less than a temperature inside the combustion chamber.6. The ...

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Номер записи: 48
08-02-2018 дата публикации

Two-stage precombustion chamber for large bore gas engines

Номер: US20180038270A1
Автор: David Thomas Lepley, Luigi P. Tozzi, Maria-Emmanuella Sotiropoulou
Принадлежит: Prometheus Applied Technologies LLC

In certain embodiments, a two-stage precombustion chamber may be used to reduce engine NOx levels, with fueled precombustion chambers, while maintaining comparable engine power output and thermal efficiency. One or more fuel admission points may be located in either the first prechamber stage or the second prechamber stage. A more efficient overall combustion characterized by low levels of NOx formation may be achieved by a two-stage precombustion chamber system while generating very high energy flame jets emerging from the second prechamber stage into the main combustion chamber. A first prechamber stage may be substantially smaller than a second prechamber stage. The volumes and aspect ratios of the two prechamber stages, along with the location of the electrodes within the first stage prechamber, the hole patterns, angles and the separate fueling, may be selected to create a distribution of fuel concentration that is substantially higher in the first stage prechamber compared to the second prechamber stage.

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Номер записи: 49
07-02-2019 дата публикации

FUEL INJECTION DEVICE

Номер: US20190040790A1
Автор: KUSAKABE Ryo, Ogura Kiyotaka, WATAI Takuya, YAMAOKA Shirou
Принадлежит: Hitachi Automotive Systems, Ltd.

An object of the present invention is to provide a fuel injection device in which fuel sprays hardly adhere to an intake valve, a wall surface in an engine cylinder, or a piston. 1. A fuel injection device including a valve body and a seat surface to perform injection and sealing of fuel cooperatively and a plurality of injection holes of which inlet opening surfaces are formed on the seat surface , whereina first injection hole and a second injection hole arranged closest to the first injection hole, which configure the plurality of injection holes, are configured such thatthe first injection hole is larger than the second injection hole in an injection hole angle to be an angle formed by a normal direction of the seat surface and a center axis of the injection hole andthe second injection hole is larger than the first injection hole in an area of a cross-section perpendicular to the center axis of the injection hole.2. The fuel injection device according to claim 1 , wherein the second injection hole has two injection holes arranged at positions sandwiching the first injection hole in a circumferential direction around a center of the seat surface.3. The fuel injection device according to claim 2 , whereinthe plurality of injection holes include at least one injection hole in addition to the first injection hole and the second injection hole andamong all injection holes included in the plurality of injection holes, the injection hole angle in the first injection hole is largest and the area of the cross-section perpendicular to the center axis of the injection hole in the first injection hole is smallest.4. The fuel injection device according to claim 2 , whereinthe plurality of injection holes include, in addition to the first injection hole and the second injection hole, a third injection hole and two fourth injection holes arranged to sandwich the third injection hole in the circumferential direction around the center of the seat surface andthe area of the ...

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Номер записи: 50
12-02-2015 дата публикации

Minimizing Alcohol Use In High Efficiency Alcohol Boosted Gasoline Engines

Номер: US20150046069A1
Автор: Daniel R. Cohn, Leslie Bromberg
Принадлежит: ETHANOL BOOSTING SYSTEMS LLC

A number of systems and methods are disclosed which increase the replenishment interval for anti-knock fluid. This is especially important during activities which require a large amount of anti-knock fluid, such as towing. In some embodiments, the systems and methods are used to reduce anti-knock fluid consumption. For example, changes to engine operation, such as rich operation, spark retarding, upspeeding, and variable valve timing, all serve to reduce the amount of anti-knock fluid required to eliminate knocking. In other embodiments, the composition of the anti-knock fluid is modified, such as by using a higher octane fluid, or through the addition of water to the anti-knock fluid. In other embodiments, the replenishment interval is increased through a larger anti-knock fluid storage capacity. In one embodiment, a three tank system is used where the third tank can be used to store gasoline or anti-knock fluid, depending on the driving conditions.

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Номер записи: 51
19-02-2015 дата публикации

Method for Operating an Internal Combustion Engine

Номер: US20150047600A1
Автор: Klenk Rolf, Scherer Christopher
Принадлежит:

A method for operating an internal combustion engine of a motor vehicle involves directly injecting fuel into a combustion chamber using an injection device, and a mixture of the fuel and air is ignited in the combustion chamber by an ignition device. The internal combustion engine is operated selectively in at least one first operating mode with at least one first valve lift of at least one gas exchange valve of the internal combustion engine, associated with the combustion chamber, or in at least one second operating mode with at least one second valve lift of the gas exchange valve, which is smaller than the first valve lift. For assisting a charge movement of the mixture in the second operating mode, at least one further injection of fuel directly into the combustion chamber is carried out prior to the ignition. 16-. (canceled)7. A method for operating an internal combustion engine of a motor vehicle , the method comprising:directly injecting fuel into at least one combustion chamber of the internal combustion engine using at least one injection device; andigniting, by an ignition device, a mixture of the fuel and air in the combustion chamber, at least one first operating mode with at least one first valve lift of at least one gas exchange valve of the internal combustion engine, associated with the combustion chamber, and', 'at least one second operating mode with at least one second valve lift of the gas exchange valve, which is smaller than the first valve lift,, 'wherein the internal combustion engine being operated selectively in'}wherein a charge movement of the mixture in the second operating mode is assisted by at least one further injection of fuel directly into the combustion chamber, which is carried out prior to the ignition.8. The method of claim 7 , wherein the further injection is carried out after the at least one first injection.9. The method of claim 7 , wherein in the second operating mode the ignition is a multi-spark ignition.10. The method ...

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Номер записи: 52
15-02-2018 дата публикации

Control method for dual injector of engine

Номер: US20180045132A1
Автор: Min-Kyu HAN
Принадлежит: Hyundai Motor Co

A method for controlling a plurality of injectors installed in the same cylinder of an engine may include determining whether an electrical failure occurred in any of the injectors, and entering a fail-safe mode when an electrical failure has occurred only in one of the plurality of injectors in the same cylinder. In the fail-safe mode, fuel supply to an injector that has experienced an electrical failure is cut off, and the amount of fuel injected into the cylinder by a normally operating injector is increased.

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Номер записи: 53
08-05-2014 дата публикации

CONTROL METHOD AND APPARATUS FOR DUAL INJECTOR OF ENGINE

Номер: US20140123932A1
Автор: LEE Hyung Ju, LEE II Nam
Принадлежит: HYUNDAI MOTOR COMPANY

It is possible to improve fuel efficiency with improved combustion performance of an engine by increase volatility of fuel supplied to a combustion chamber as much as possible and can reduce toxic exhaust substances, by appropriately controlling injection of two injectors in an engine with a dual injector. 1. A control method for a dual injector of an engine , comprising:controlling a first injector and a second injector disposed in first and second intake ports, respectively, connected to one combustion chamber, wherein injection times of the first injector and the second injector have temporal priority.2. The method of claim 1 , wherein an injection interval of the first injector and an injection interval of the second injector are continuous.3. The method of claim 2 , wherein the injection interval of the first injector and the injection interval of the second injector are switched during a valve-open time with the intake valve open.4. The method of claim 3 , wherein the injection interval of the first injector and the injection interval of the second injector do not overlap.5. The method of claim 3 , wherein the injection interval of the first injector and the injection interval of the second injector partially overlap.6. The method of claim 3 , wherein the injection interval of the first injector starts at least before the intake valve opens.7. A control apparatus for a dual injector of an engine comprising;a first injector and a second injector disposed in first and second intake ports, respectively, connected to one combustion chamber; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a controller that controls the first injector and the second injector in accordance with the method according to .'}8. A vehicle comprising;a first injector and a second injector disposed in first and second intake ports, respectively, connected to one combustion chamber; and{'claim-ref': {'@idref': 'CLM-00002', 'claim 2'}, 'a controller that controls the first injector and ...

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Номер записи: 54
08-05-2014 дата публикации

Fuel-stratified combustion chamber in a direct-injected internal combustion engine

Номер: US20140123934A1
Автор: David J. Schouweiler, Jr.
Принадлежит: Individual

A combustion chamber is provided within an internal combustion engine, the chamber bounded by a cylinder bore, a primary end, and a secondary end. The secondary end reciprocates between a TDC position nearest the primary end and a BDC position. Induction and exhaust ports are timed to open and close to transfer air into, and gasses from, the chamber. The chamber becomes fuel stratified when the secondary end is positioned within a stratified distance of the primary end. When stratified, the chamber is comprised of a central region, a perimeter region, and a transfer passageway between regions. A fuel injector at the primary end injects fuel only into the central region and only prior to ignition. The perimeter region pumps air into the central region prior to ignition, creating tumble turbulence. Combustion is initiated near TDC in the central region and concluded near TDC in the transfer passageway.

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Номер записи: 55
14-02-2019 дата публикации

FUEL MANAGEMENT SYSTEM FOR VARIABLE ETHANOL OCTANE ENHANCEMENT OF GASOLINE ENGINES

Номер: US20190048811A1
Автор: Bromberg Leslie, Cohn Daniel R., Haywood John B.
Принадлежит:

Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency or the engine. 133-. (canceled)34. A fuel management system for a turbocharged spark ignition engine , comprising:a first fueling system that uses direct injection; anda second fueling system that uses port fuel injection,wherein an air/fuel mixture of the fuel management system is stoichiometric,wherein the fuel management system is configured to provide fueling in a first torque range, the first torque range being a first range of torque values at which both the first fueling system and the second fueling system are operable throughout the first range of torque values,wherein the fuel management system is further configured such that a fraction of fueling provided by the first fueling system is higher at a highest value of torque in the first torque range than in a lowest value of torque in the first torque range,wherein the fuel management system is further configured to provide fueling in a second torque range, the second torque range being a second range of torque values at which the second fueling system is operable throughout the second range of torque values and the first fueling system is not operable throughout the second range of torque values, andwherein the fuel management system is further configured such that when the system provides fueling at a torque value that ...

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Номер записи: 56
25-02-2016 дата публикации

Piston and Bowl for Gasoline Direct Injection Compression Ignition (GDCI)

Номер: US20160053714A1
Автор: Mark C. Sellnau
Принадлежит: Delphi Technologies Inc

A piston for use in a GDCI engine cooperates with the wall of a cylinder defined in the engine and with a cylinder head to define a combustion chamber. The surface of the piston that faces the cylinder head defines a bowl that is configured to receive fuel that is dispensed from a fuel injector that is located in the cylinder head substantially along the central axis of the cylinder. The bowl is configured such that substantially all of the injected fuel associated with a combustion event reaches a localized equivalence ratio greater than 0.0 and less than or equal to 1.2 at a time immediately preceding initiation of the combustion event.

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Номер записи: 57
15-05-2014 дата публикации

MECHANICAL MOTION AMPLIFICATION FOR NEW THERMODYNAMIC CYCLES

Номер: US20140130773A1
Автор: McAlister Roy Edward
Принадлежит:

The present technology relates generally to mechanical motion amplification for fuel injectors. In some embodiments, an injector for introducing gaseous or liquid fuel into a combustion chamber includes an injector body having a base portion configured to receive fuel into the body and a valve coupled to the body. The valve can be movable to an open position to introduce fuel into the combustion chamber. The injector further includes a valve operator assembly. The valve operator assembly can include a valve actuator coupled to the valve and movable between a first position and a second position, and a prime mover configured to generate an initial motion. The valve operator assembly can also include a mechanical stroke modifier configured to alter at least one of a direction or magnitude of the initial motion and convey the altered motion to the valve actuator. 1. A gaseous fuel injector , comprising:a piezoelectric actuator; and an input plunger connected to a surrounding transfer sleeve via a first lever, wherein the first lever is mounted to a first fulcrum disposed between the input plunger and the transfer sleeve; and', 'an output plunger connected to the transfer sleeve via a second lever mounted to a second fulcrum disposed between the output plunger and the transfer sleeve., 'a mechanical stroke amplifier, including2. The fuel injector according to wherein the first lever and second lever extend laterally from the transfer sleeve.3. The fuel injector according to wherein the first lever is pivotably mounted at a pivot location along a length of the first lever to the first fulcrum claim 1 , wherein the pivot location is closer to the input plunger than the transfer sleeve.4. The fuel injector according to wherein the input plunger and output plunger are nonparallel.5. The fuel injector according to wherein the mechanical stroke amplifier further includes at least one of a spring claim 1 , magnet claim 1 , or pneumatic cylinder coupled to at least one of the ...

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Номер записи: 58
05-03-2015 дата публикации

Fuel injection systems with enhanced thrust

Номер: US20150059684A1
Автор: Roy Edward McAlister
Принадлежит: McAlister Technologies LLC

Methods, systems, and devices are disclosed for injecting a fuel using Lorentz forces. In one aspect, a method to inject a fuel includes distributing a fuel between electrodes configured at a port of a chamber, generating an ion current of ionized fuel particles by applying an electric field between the electrodes to ionize at least some of the fuel, and producing a Lorentz force to accelerate the ionized fuel particles into the chamber. In some implementations of the method, the accelerated ionized fuel particles into the chamber initiate a combustion process with oxidant compounds present in the chamber. In some implementations, the method further comprises applying an electric potential on an antenna electrode interfaced at the port to induce a corona discharge into the chamber, in which the corona discharge ignites the ionized fuel particles within the chamber.

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Номер записи: 59
05-03-2015 дата публикации

FUEL INJECTION SYSTEMS WITH ENHANCED CORONA BURST

Номер: US20150059685A1
Автор: McAlister Roy Edward
Принадлежит: McAlister Technologies, LLC

Methods, systems, and devices are disclosed for injecting and igniting a fuel using corona discharge for combustion. In one aspect, a method to ignite a fuel in an engine includes injecting ionized fuel particles into a combustion chamber of an engine, and generating one or more corona discharges at a particular location within the combustion chamber to ignite the ionized fuel particles, in which the generating includes applying an electric field at electrodes configured at a port of the combustion chamber, the electric field applied at a frequency that does not produce an ion current or spark on or between the electrodes. 1. A method to ignite a fuel in an engine , the method comprising:injecting ionized fuel particles into a combustion chamber of an engine; andgenerating one or more corona discharges at a particular location within the combustion chamber to ignite the ionized fuel particles, the generating including applying an electric field at electrodes configured at a port of the combustion chamber, the electric field applied at a frequency that does not produce an ion current or spark on or between the electrodes.2. The method of claim 1 , wherein the corona discharge initiates a combustion process of the ionized fuel particles with oxidant compounds present in the chamber.3. The method of claim 1 , wherein the electrodes include antenna structures interfaced at the port.4. The method of claim 1 , wherein the electrodes include a first electrode and a second electrode configured in a coaxial configuration at a terminal end interfaced with the port claim 1 , in which the first electrode is configured along the interior of an annular spacing between the second electrode and the first electrode includes one or more points protruding into the annular spacing.5. The method of claim 4 , wherein the second electrode includes one or more points protruding into the annular space and aligned with the one or more points of the first electrode to reduce the spacing ...

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Номер записи: 60
01-03-2018 дата публикации

Method and apparatus for controlling operation of an internal combustion engine

Номер: US20180058350A1
Автор: Chen-Fang Chang, Jun-Mo Kang, Yongjie Zhu
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An internal combustion engine is described. Controlling the internal combustion engine includes gathering engine operating data during steady-state engine operation, including gathering a first dataset associated with a cylinder air charge during steady-state operation of the engine in the PVO state and gathering a second dataset associated with a cylinder air charge during steady-state operation of the engine in the NVO state. An optimization routine is executed to determine a first subset of parameters associated with a first relationship for a cylinder air charge model based upon the second dataset. The optimization routine is also executed to determine a second subset of parameters associated with a second relationship for the cylinder air charge model based upon the first dataset. A cylinder air charge is determined in real-time during engine operation based upon the cylinder air charge model and the first and second subsets of parameters.

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Номер записи: 61
01-03-2018 дата публикации

FUEL INJECTION CONTROL DEVICE FOR DIRECT-INJECTION ENGINE

Номер: US20180058366A1
Автор: Fujimoto Hidefumi, Nagasawa Takeshi, ONO Ryohei, OTA Noriyuki, SATO Kiyotaka, Uchida Kenji
Принадлежит: MAZDA MOTOR CORPORATION

A fuel injection valve () is configured such that the effective opening area of an injection port () increases as its lift amount increases. A fuel injection control unit (an engine control unit ) injects fuel in a lift amount changing mode wherein, when fuel is injected into a combustion chamber () in the terminal period of the compression stroke, the lift amount of the fuel injection valve is set to a predetermined large lift amount in the earlier period of the injection period, and in the later period of the injection period following the earlier period of the injection period, the lift amount is set to a small lift amount smaller than the large lift amount and is in a range where the fuel injection speed increases. 1. A fuel injection control device for a direct-injection engine , the fuel injection control device comprising:an engine body having a combustion chamber defined by a ceiling portion of a cylinder head, a cylinder provided to a cylinder block, and a piston reciprocating in the cylinder; anda fuel injection controller having a fuel injection valve disposed so as to inject liquid fuel into the combustion chamber, and configured to inject the fuel into the combustion chamber at a predetermined timing, whereinthe fuel injection valve is configured such that an effective opening area of an injection port through which the fuel is injected increases as a lift amount of the fuel injection valve increases, andfuel injection controller injects the fuel in a lift amount changing mode in which, when the fuel is injected into the combustion chamber in a terminal period of a compression stroke, the lift amount of the fuel injection valve is set to a predetermined large lift amount in an earlier period of an injection period, and in a later period of the injection period following the earlier period of the injection period, the lift amount is set to a small lift amount smaller than the large lift amount and is in a range where a fuel injection speed increases.2. ...

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Номер записи: 62
20-02-2020 дата публикации

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

Номер: US20200056557A1
Автор: Daniel R. Cohn, John B. Heywood, Leslie Bromberg
Принадлежит: Massachusetts Institute of Technology

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

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Номер записи: 63
19-03-2015 дата публикации

FUEL REFORMER FOR INTERNAL-COMBUSTION ENGINE

Номер: US20150075451A1
Автор: Inuzuka Hiroyuki, MIZOBUCHI Takeshi, OBAYASHI Hideki
Принадлежит:

A fuel reformer includes a reforming-fuel injection valve and a fuel reformer catalyst disposed in an EGR pipe and performs a catalyst recovery control when a preset fuel cut execution condition is satisfied. In the catalyst recovery control, a fuel reforming capacity of the fuel reformer catalyst is recovered by stopping an injection of a main fuel and an injection of a reforming-fuel, while supplying additional air to the catalyst by maintaining both of an EGR valve and a throttle valve in a valve open state. Further, in the catalyst recovery control, temperature and a carbon deposit amount of the fuel reformer catalyst are estimated or detected based on which of an opening of the EGR valve and an opening of the throttle valve are adjusted. As a result, fuel reforming capacity is recovered without decreasing a fuel consumption rate improvement effect and a worsening of exhaust emission or drivability. 1. A fuel reformer for an internal combustion engine comprising:a main fuel injector injecting a main fuel that is supplied to an internal combustion engine;a throttle valve adjusting an intake air amount for the engine;an EGR passage returning a portion of an exhaust gas from an exhaust passage of the engine to an air-intake passage as an EGR gas;an EGR valve adjusting a flow amount of the EGR gas;a reforming-fuel injector injecting a reforming-fuel into the EGR passage;a fuel reformer catalyst disposed in the EGR passage and reforming the reforming-fuel injected by the reforming-fuel injector; anda catalyst recovery controller executing a catalyst recovery control that includes (i) performing a fuel cut, which stops an injection of the main fuel and the reforming-fuel, and (ii) maintaining the EGR valve and the throttle valve in a valve open state to supply additional air to the fuel reformer catalyst and recover a fuel reforming capacity of the fuel reformer catalyst.2. The fuel reformer of claim 1 , whereinthe catalyst recovery controller adjusts at least one of ...

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Номер записи: 64
07-03-2019 дата публикации

VALVE IGNITION PRECHAMBER

Номер: US20190072025A1
Автор: RABHI Vianney
Принадлежит:

Disclosed is a valve ignition prechamber for an internal combustion engine which includes a combustion chamber in which a main load more or less diluted with a neutral gas is ignited, the prechamber including a lamination cavity into which an ignition unit opens and in which a lamination injector can inject under pressure an easily flammable pilot load, a lamination valve being able to close all or part of the lamination duct, in particular under the effect of the pressure of the gases prevailing in the combustion chamber. 11234530. A valve ignition prechamber () for an internal combustion engine () which comprises a cylinder head () which caps a cylinder () to form a combustion chamber () in which a main load can be burned () , the valve ignition prechamber comprising:{'b': 6', '3', '5', '7', '8', '6', '9', '10', '9, 'at least one lamination cavity () which is arranged in the cylinder head () and is connected to the combustion chamber () by a lamination duct () and which also receives a lamination injector () which can directly or indirectly inject into said cavity () a pilot load () previously pressurized by compression means (), said load () consisting of a combustive agent-AF fuel mixture easily flammable by means of a spark;'}{'b': 11', '6', '9, 'ignition means () which open into the lamination cavity () and which can ignite the pilot load ();'}{'b': 13', '7', '14', '6', '15', '11', '13', '7', '6', '5', '5', '6, 'a lamination valve () which can close all or part of the lamination duct () and which exposes both a cavity side face () subjected to the pressure of the gases prevailing in the lamination cavity (), as well as a chamber side face () subjected to the pressure of the gases prevailing in the combustion chamber (), said lamination valve () being able to translate with respect to said duct () under the effect of the pressure of the gases, either towards the lamination cavity () when said pressure prevailing in the latter is lower than the pressure ...

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Номер записи: 65
24-03-2022 дата публикации

METHOD FOR INTRODUCING HIGHLY PRECOMPRESSED COMBUSTION AIR INTO A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE, HIGH-PRESSURE INLET VALVE THEREFOR AND INTERNAL COMBUSTION ENGINE HAVING SUCH A HIGH-PRESSURE INLET VALVE

Номер: US20220090522A1
Автор: Junker Erwin
Принадлежит:

A method for introducing combustion air into a cylinder () of an internal combustion engine, a high-pressure inlet valve () provided therefor and an internal combustion engine that operates using the method and the high-pressure inlet valve are described. All the combustion air for the respective cylinders () is introduced into the cylinder () of the internal combustion engine, by means of a high-pressure inlet valve () arranged in the relevant cylinder head () and on the basis of a controlled mass flow, such that mixture formation and charge exchange are intensified. In addition, the temperature and/or pressure of the combustion air is measured and the quantity of combustion air is introduced into the cylinder (), in a controlled manner and on the basis of the measurement results, by means of the high-pressure inlet valve () by opening or closing a sliding piston () of the high-pressure inlet valve () by displacement. As a result of an axial displacement of the sliding piston () between guide sections () in the housing () of the high-pressure inlet valve (), passage areas () for combustion air are blocked in a closed position () and opened in an open position (). In the passage area (), the sliding piston () has two pressurization areas () facing each other, the surfaces of which are of equal size or differ from each other when projected in one plane. The first pressurization area () can be designed as a poppet valve () and the second pressurization area () can be designed as an annular surface (). The internal combustion engine has a high-pressure line () for the combustion air, which line is connected to the high-pressure inlet valve (). With respect to the longitudinal axis of the cylinder (), the high-pressure inlet valve () is arranged in the cylinder head () in an upright or horizontal position. 1. A method for introducing combustion air into a cylinder of an internal combustion engine , in which method the entirety of the combustion air for the respective ...

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Номер записи: 66
12-06-2014 дата публикации

CONTROL DEVICE OF INTERNAL-COMBUSTION ENGINE

Номер: US20140158086A1
Автор: Matsuda Kazuhisa, Morita Kouji, Tsukagoshi Takahiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

When alcohol-blended fuel is supplied to an internal-combustion engine, the magnitude of alcohol concentration (more particularly, ethanol concentration Cetha) is judged (Step ) and, based on this judgment, the magnitude of operational status temperature (more particularly, cooling water temperature THW) is judged (Step ). Then, when the alcohol concentration is large and the operational status temperature is low, generation of an intermediate product which is an oxide of alcohol contained in the alcohol-blended fuel in an unburnt state after main injection and alcohol contained in the alcohol-blended fuel in an unburnt state after post injection (more particularly, aldehyde) is promoted, and the generated intermediate product is trapped in an intake passage by making an intake valve into an opened state in an exhaust stroke of the internal-combustion engine (Step ). 18-. (canceled)9. A control device of an internal-combustion engine applied to an internal-combustion engine equipped with a direct injection means which directly injects fuel containing at least gasoline into a combustion chamber of the internal-combustion engine and a variable valve actuation means to continuously change the timings of opening and closing and the valve opening position of an intake valve disposed in an intake passage through which the air inhaled into said combustion chamber , characterized in that:said variable valve actuation means is configured so as to keep said intake valve opened during a predetermined period after said direct injection means injects said fuel in order to raise the temperature of a catalyst disposed in an exhaust passage through which exhaust gas discharged from said combustion chamber passes, andsaid control device of an internal-combustion engine is equipped with an intermediate product generation presumption means to presume the quantity of an intermediate product produced from the unburnt fuel in the above-mentioned fuel supplied into the above-mentioned ...

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Номер записи: 67
12-06-2014 дата публикации

After-Treatment System and Method for Six-Stroke Combustion Cycle

Номер: US20140158087A1
Автор: Fiveland Scott B., Silver Ronald, Williams D. Ryan
Принадлежит: CATERPILLAR INC.

An internal combustion engine operates on a six-stroke combustion cycle including a first compression stroke, a first power stroke, a second compression stroke, and a second power stroke. A first fuel charge is introduced to a combustion chamber of the engine at a first fuel rate during the first compression and/or first power stroke to produce lean exhaust gasses. A second fuel charge is also introduced to the combustion chamber during the second compression and/or second power stroke to normally produce lean exhaust gasses. Periodically, the second fuel charge can be increased to a second fuel rate to produce stoichiometric rich exhaust gasses. A lean nitrogen oxide trap can be disposed in an exhaust system associated with the engine to temporarily trap nitrogen oxides. Once saturated, the LNT can be periodically regenerated by production of the rich exhaust gasses. 1. A method of reducing emissions from an internal combustion engine utilizing a six-stroke cycle that includes a first compression stroke , a first power stroke , a second compression stroke , and a second power stroke , the method comprising:introducing a first fuel charge to a combustion chamber during the first compression and/or first power stroke and combusting to produce a stoichiometric lean condition in the combustion chamber;introducing a second fuel charge to the combustion chamber during the second compression stroke and/or second power stroke to produce a second condition stoichiometric lean condition in the combustion chamber and combusting to produce lean exhaust gasses; andperiodically increasing the second fuel charge to produce a stoichiometric rich condition in the combustion chamber and combusting to produce rich exhaust gasses.2. The method of claim 1 , further comprising trapping nitrogen oxides in the lean exhaust gasses with a lean nitrogen oxide trap (LNT).3. The method of claim 2 , further comprising regenerating the LNT by releasing trapped nitrogen oxides in the presence of ...

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Номер записи: 68
23-03-2017 дата публикации

HYDROXY FUNCTIONALIZED ASHLESS ADDITIVE

Номер: US20170081609A1
Автор: ZHANG Yanshi
Принадлежит:

The disclosed technology relates to hydroxy functionalized ashless additives useful in engine oil compositions due to their ability to reduce deposits, particularly deposits seen in turbocharged direct injection (TDI) engines. The described additives include ashless saturated compounds having a long chain hydrocarbyl polymer terminated by a hydroxyl group. The disclosed technology also relates to lubricant compositions containing the described additives, processes of making the described additives, and methods of using the described additives. 1. A lubricant composition comprising:(i) an oil of lubricating viscosity;(ii) an additive comprising an ashless saturated compound having a long chain hydrocarbyl polymer terminated by a hydroxyl group.2. The lubricant composition of wherein the additive is prepared from a long chain ethylenically unsaturated hydrocarbon polymer by means of a hydroboration and oxidation sequence.3. The lubricant composition of any of the to wherein the additive is prepared by reacting a long chain ethylenically unsaturated hydrocarbon polymer with a borane derivative claim 1 , and then reacting the resulting intermediate with a peroxide derivative and a base.4. The lubricant composition of any of the to wherein the additive is prepared by reacting a long chain ethylenically unsaturated hydrocarbon polymer with CO and Hin the presence of a metal catalyst claim 1 , resulting in an aldehyde claim 1 , and then completing a hydrogenation or a reduction of the aldehyde to the saturated alcohol.5. The lubricant composition of any of the to wherein said long chain ethylenically unsaturated hydrocarbyl group is a polyolefin of number average molecular weight of from about 140 to about 5000.wherein said long chain ethylenically unsaturated hydrocarbyl group comprises from about 10 to about 600 carbon atoms.7. The lubricant composition of any of the to wherein said additive is present in the overall lubricant composition from about 0.1 to about 4.0 ...

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Номер записи: 69
12-03-2020 дата публикации

MAGNETIC VALVE RECOIL DEVICE

Номер: US20200080508A1
Автор: RABHI Vianney
Принадлежит:

The magnetic valve recoil device is intended for a valve-type ignition pre-chamber having a stratification cavity connected by a stratification pipe, which a stratification valve can close, to a combustion chamber housing a primary charge, a stratification injector, and an ignition unit leading to the cavity in order to inject and ignite an initiator charge so as to ignite the primary charge via a torch ignition pre-chamber formed by the stratification valve with the stratification pipe when it is not closing the latter, the valve being otherwise kept in contact with the pipe by a magnetic field created by a magnetic field source. 142123431530368911675137651413181972365242315132021. A magnetic valve recoil device () for a valve-type ignition pre-chamber () for an internal combustion engine () , said engine comprising a cylinder head () sitting on top of a cylinder () in order to form , together with a piston () , a combustion chamber () into which a primary charge () may be introduced , said cylinder head () receiving a stratification cavity () to which , on the one hand , a stratification injector () , which can inject an initiator charge () , and , on the other hand , ignition means () lead , said cavity () being connected by a stratification pipe () to the combustion chamber () while a stratification valve () can either close said pipe () and isolate the stratification cavity () from the combustion chamber () , with a cavity-side surface () of said valve () then resting on a valve closing seat () by means of a cavity-side valve bearing surface () , or form , together with said pipe () , a torch ignition pre-chamber () that causes the stratification cavity () to communicate with the combustion chamber () by means of at least one gas ejection orifice () that said pre-chamber () includes , with a chamber-side surface () of said valve () resting in this case on a valve opening seat () by means of a chamber-side valve bearing surface () , characterized in that said ...

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Номер записи: 70
09-04-2015 дата публикации

Fuel System Protection In A Multi-Fuel System Internal Combustion Engine

Номер: US20150096530A1
Автор: Bzymek Raymond, COWGILL Joshua D., Dunn Mark E., Marriott Craig D., Moscherosch Ben W., Wu Ning, Zhang Dehong
Принадлежит:

A technique for fuel system protection for an internal combustion engine includes introducing a directly injected fuel into a combustion chamber through a direct fuel injector, introducing a fumigated fuel upstream of an intake valve, selectively operating the internal combustion engine with at least one of the directly injected fuel and the fumigated fuel, determining a temperature of the direct fuel injector as a first function of engine operating parameters, and performing a temperature mitigation technique when the temperature rises above a first predetermined value such that the temperature is maintained below a second predetermined value. 1. A method of fuel system protection for an internal combustion engine , the method comprising:introducing a directly injected fuel into a combustion chamber through a direct fuel injector;introducing a fumigated fuel upstream of an intake valve; selectively operating said internal combustion engine with at least one of said directly injected fuel and said fumigated fuel;determining a temperature of said direct fuel injector as a first function of engine operating parameters; andperforming a temperature mitigation technique when said temperature rises above a first predetermined value such that said temperature is maintained below a second predetermined value.2. The method of claim 1 , wherein said first predetermined value is greater than said second predetermined value.3. The method of claim 1 , wherein said first predetermined value and said second predetermined value are related by one of:said first predetermined value is less than said second predetermined value; andsaid first predetermined value is equal to said second predetermined value.4. The method of claim 1 , wherein said mitigation technique comprises switching operation of said internal combustion engine from said fumigated fuel to said directly injected fuel.5. The method of claim 1 , wherein said mitigation technique comprises increasing a quantity of ...

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Номер записи: 71
09-04-2015 дата публикации

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

Номер: US20150096531A1
Автор: Zhou Xiangjin
Принадлежит:

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 ...

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Номер записи: 72
16-04-2015 дата публикации

ROTARY CARBURETOR

Номер: US20150102511A1
Автор: NONAKA Takumi, ONODERA Hisato, TATEYANAGI Kazuyuki, YAMAZAKI Takahiro
Принадлежит:

In a carburetor, three downstream body passages in the body communicate with three valve passages in the valve element, and the valve element rotates between a closed position and an opened position. The carburetor is a one-bore type carburetor in which the body passages and the valve passages are respectively partitioned with the body partitions and the valve partitions. When rotating the valve element from the closed position to the opened position, the second body passage and the second valve passage for mixture start to communicate in advance than the first and third body passages and the first and third valve passages for air. 1. A rotary carburetor which is used in a stratified scavenging two-stroke internal combustion engine , comprising:a block-like body having a cylindrical bore with a center of an axis;a valve element having a cylindrical form and rotatably contained in the bore; anda nozzle unit disposed in the valve element along the axis,wherein the valve element includes valve passages for air and a valve passage for mixture extending through the valve element in a direction across the axis,wherein the nozzle unit includes a port which is opened to the valve passage for mixture and ejects fuel,wherein the body includes upstream body passage communicating with the valve passages for air and the valve passage for mixture upstream of the valve element, and downstream body passages for air and downstream body passage for mixture respectively communicating with the valve passages for air and the valve passage for mixture downstream of the valve element,wherein the valve element is rotatable around the axis between an opened position and an closed position, wherein in the opened position, the valve passages for air and the valve passage for mixture respectively communicate with the downstream body passages for air and the downstream body passage for mixture, and the valve passages for air and the valve passage for mixture communicate with the upstream body ...

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Номер записи: 73
06-04-2017 дата публикации

Hybrid Cycle Combustion Engine and Methods

Номер: US20170096933A1
Автор: Alexander C. Shkolnik, Nikolay Shkolnik
Принадлежит: Liquidpiston Inc

A method of operating an internal combustion engine having a housing, a piston mounted in the housing for complex motion about a plurality of axes and coupled to a shaft, and wherein occur phases of compression, combustion, and expansion in the housing, and wherein, in the compression phase, air introduced through an intake port into the housing is compressed by reducing volume of a compression chamber in the housing from an initial volume to a second volume that is less than the initial volume, and in the expansion phase, byproducts of combustion expand from the second volume to a third volume that is greater than the initial volume.

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Номер записи: 74
12-04-2018 дата публикации

IGNITION APPARATUS AND METHOD FOR A PREMIXED CHARGE IN A GASEOUS-FUELLED ENGINE

Номер: US20180100450A1
Автор: Munshi Sandeep, SAUVE Kyle D., Wu Ning
Принадлежит:

Premixed engines have ignition issues when engine speed and load are below a predetermined range. An ignition apparatus for igniting a premixed charge in a gaseous-fuelled internal combustion engine comprises an ignition device associated with a combustion chamber of the internal combustion engine. There is at least one of a dilutant injector for introducing a diluting agent that forms a stratified charge around the ignition device and an enrichment injector for introducing gaseous fuel that forms a stratified charge around the ignition device. An electronic controller is operatively connected with the ignition device and the at least one of the dilutant injector and the enrichment injector and programed to at least one of actuate the dilutant injector to introduce the diluting agent when the ignition device decreases a local air-fuel equivalence ratio around the ignition device below a predetermined threshold; and actuate the enrichment injector to introduce the gaseous fuel to decrease the local air-fuel equivalence ratio when engine load and engine speed are below a predetermined threshold engine load and speed range and when the ignition device does not affect the local air-fuel equivalence around the ignition device. 1. An ignition apparatus for igniting a premixed charge in a gaseous-fuelled internal combustion engine comprising:an ignition device associated with a combustion chamber of the internal combustion engine;at least one of a dilutant injector for introducing a diluting agent that forms a stratified charge around the ignition device and an enrichment injector for introducing gaseous fuel that forms a stratified charge around the ignition device; and actuate the dilutant injector to introduce the diluting agent when the ignition device decreases a local air-fuel equivalence ratio around the ignition device below a predetermined threshold; and', 'actuate the enrichment injector to introduce the gaseous fuel to decrease the local air-fuel equivalence ...

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Номер записи: 75
03-07-2014 дата публикации

SYSTEM AND METHOD OF IMPROVING EFFICIENCY OF AN INTERNAL COMBUSTION ENGINE

Номер: US20140182544A1
Автор: Zhou Tongqing
Принадлежит:

An improved multi-stroke DIG or diesel engine and method includes a cylinder formed within an engine cylinder block, a piston is movably disposed within the cylinder, and a combustion chamber is formed in a space between the piston and a cylinder head. An injector is disposed within the engine cylinder head for supplying fuel into the cylinder. An intake valve is disposed within an intake opening formed in the engine and an exhaust valve is disposed within an exhaust opening formed in the engine. An actuator is connected to the piston, wherein movement of the piston causes the actuator to open the exhaust valve a first predetermined amount at a beginning of the compression stroke of the piston to vent air through an exhaust channel formed in the engine and to close the exhaust valve after a predetermined period of time within the compression stroke of the piston. 1. A multi-stroke engine comprising:a cylinder formed within an engine block;a piston movably disposed within the cylinder, wherein a combustion chamber is formed in a space between the piston and a cylinder head;an injector disposed within the engine cylinder head for supplying fuel into the cylinder;an intake valve disposed within an intake opening formed in the engine;an exhaust valve disposed within an exhaust opening formed in the engine;an actuator connected to the piston, wherein movement of the piston causes the actuator to open the exhaust valve a first predetermined amount at a beginning of the compression stroke of the piston to vent air through an exhaust channel formed in the engine and to close the exhaust valve after a predetermined period of time within the compression stroke of the piston.2. The engine of claim 1 , wherein the actuator opens the exhaust valve a second predetermined amount during an exhaust stroke of the piston to vent exhaust gas through an exhaust channel formed in the engine.3. The engine of claim 1 , wherein the actuator is a camshaft having an exhaust cam mounted to a ...

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Номер записи: 76
13-04-2017 дата публикации

CYLINDER INJECTION INTERNAL COMBUSTION ENGINE

Номер: US20170101975A1
Автор: KODAMA Kohei
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A cylinder head includes: a cylinder head body; multiple fuel ports extending to cylinders from a sidewall surface of the cylinder head body, the sidewall surface being located on one side of a longitudinal axis, on which intake ports are disposed; multiple injection valve attachment bosses projecting from the sidewall surface, surrounding openings of the fuel ports, and adapted to attach cylinder fuel injection valves to the fuel ports; and multiple projections projecting from the sidewall surface and disposed adjacent to the corresponding injection valve attachment bosses. A cylinder block includes: a cylinder block body; and a sensor attachment boss projecting from a sidewall surface of the cylinder block body, the sidewall surface being located on the one side of the longitudinal axis, on which the sidewall surface of the cylinder head body is located. The sensor attachment boss is adapted to attach a knock sensor to the cylinder block. 1. A cylinder injection internal combustion engine comprisingan engine body including a cylinder block and a cylinder head, the cylinder head being fixed on a top surface of the cylinder block, and the engine body including a plurality of cylinders aligned along a longitudinal axis of the engine body, wherein:the cylinder head includes a cylinder head body, a plurality of fuel ports, a plurality of injection valve attachment bosses, and at least one projection;the fuel ports extend to the corresponding cylinders from a sidewall surface of the cylinder head body, the sidewall surface of the cylinder head body being located on one side of the longitudinal axis, on which intake ports are disposed;the injection valve attachment bosses project from the sidewall surface of the cylinder head body and surround openings of the corresponding fuel ports, and the injection valve attachment bosses are adapted to attach cylinder fuel injection valves to the respective fuel ports;the at least one projection projects from the sidewall surface of ...

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Номер записи: 77
30-04-2015 дата публикации

FUEL INJECTOR

Номер: US20150115068A1
Автор: Ecker Rainer, Kochanowski Martin, Nowak Detlef, Pilgram Guido
Принадлежит:

A fuel injector configured as a high-pressure injection valve for the direct injection of fuel into a combustion chamber includes: a housing having an housing end face on the combustion chamber side; an actuator; a valve-closure member operable by the actuator; at least one outlet orifice in the housing end face on the combustion chamber side for the fuel, the valve-closure member selectively closing or opening the outlet orifice; and a ring provided round about the outlet orifice in the housing end face on the combustion chamber side. 112-. (canceled)13. A fuel injector configured as a high-pressure injection valve for direct injection of fuel into a combustion chamber , comprising:a housing having a housing end face on the combustion chamber side, wherein at least one outlet orifice is provided in the housing end face for the fuel;an actuator;a valve-closure member operable by the actuator, wherein the valve-closure member is configured to selectively close and open the outlet orifice; anda ring provided round about the outlet orifice on the housing end face on the combustion chamber side.14. The fuel injector as recited in claim 13 , wherein the housing end face on the combustion chamber side is dome-shaped.15. The fuel injector as recited in claim 13 , wherein claim 13 , on the housing end face on the combustion chamber side claim 13 , multiple outlet orifices are situated claim 13 , each having a ring.16. The fuel injector as recited in claim 13 , wherein the at least one outlet orifice includes a spray orifice having a first diameter and a pre-stage chamber adjacent to the spray orifice on the combustion chamber side having a second diameter claim 13 , the second diameter being larger than the first diameter.17. The fuel injector as recited in claim 16 , wherein an inside diameter of the ring is equal to the second diameter.18. The fuel injector as recited in claim 16 , wherein an inside diameter of the ring is greater than the second diameter.19. The fuel ...

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Номер записи: 78
02-04-2020 дата публикации

CYLINDER DEACTIVATION CHANGE APPARATUS

Номер: US20200102898A1
Автор: Chinda Chiho, Masukake Yuichi, Shiomi Daisuke
Принадлежит:

A cylinder deactivation change apparatus including fuel supply parts supplying fuel into a first and second combustion chambers of a first and second cylinders, ignition parts igniting fuel-air mixture in the first and the second combustion chambers and a microprocessor. The microprocessor is configured to perform determining whether changing the operation mode is necessary, and controlling the fuel supply parts and ignition parts so as to ignite at first ignition timing before it is determined that changing the operation mode to the first mode is necessary, and so as to ignite at second ignition timing retarded in comparison with the first ignition timing and so as to supply the fuel into the first combustion chamber in a manner that causes a stratified charge combustion in the first combustion chamber, when it is determined that changing the operation mode to the first mode is necessary. 1. A cylinder deactivation change apparatus , configured to change an operation mode of an internal combustion engine including a first cylinder and a second cylinder , between a first mode in which the first cylinder and the second cylinder are activated and a second mode in which the second cylinder is deactivated while the first cylinder is activated ,the cylinder deactivation change apparatus comprising:fuel supply parts configured to supply a fuel into a first combustion chamber formed in the first cylinder and a second combustion chamber formed in the second cylinder;ignition parts configured to ignite a fuel-air mixture in the first combustion chamber and a fuel-air mixture in the second combustion chamber; andan electronic control unit having a microprocessor and a memory, whereinthe microprocessor is configured to perform:determining whether it is necessary to change the operation mode; andcontrolling the fuel supply parts and the ignition parts in accordance with a result in the determining, andthe microprocessor is further configured to performthe controlling including ...

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Номер записи: 79
11-04-2019 дата публикации

Internal Combustion Engine Control Device

Номер: US20190107041A1
Автор: KIHARA Yuusuke, SUKEGAWA Yoshihiro
Принадлежит:

Stratified air-fuel mixture is stably formed around an ignition plug during a stratified charge combustion operation. For this reason, to solve the above problem, the present invention provides an internal combustion engine control device for controlling an internal combustion engine. The internal combustion engine includes: a fluid injection valve provided along an axial direction of an ignition plug; and a fuel injection valve formed separately from the fluid injection valve and provided in a direction intersecting with the axial direction of the fluid injection valve, and the internal combustion engine control device includes a control unit which controls the fluid injection valve and the fuel injection valve so as to inject fluid from the fuel injection valve after injecting fluid from the fluid injection valve in a compression stroke. 1. An internal combustion engine control device for controlling an internal combustion engine ,the internal combustion engine comprising: a fluid injection valve provided along an axial direction of an ignition plug; and a fuel injection valve formed separately from the fluid injection valve and provided in a direction intersecting with the axial direction of the fluid injection valve,the internal combustion engine control device comprising a control unit configured to control the fluid injection valve and the fuel injection valve so as to inject fluid from the fuel injection valve after injecting fluid from the fluid injection valve in a compression stroke.2. An internal combustion engine control device for controlling an internal combustion engine ,the internal combustion engine comprising: a fluid injection valve provided adjacent to an ignition plug; and a fuel injection valve formed separately from the fluid injection valve and provided in a direction intersecting with an axial direction of the fluid injection valve,the internal combustion engine control device comprising a control unit configured to control the fluid ...

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Номер записи: 80
17-07-2014 дата публикации

METHODS FOR REDUCING RAW PARTICULATE ENGINE EMISSIONS

Номер: US20140196685A1
Автор: Louven Georg, Ruhland Helmut Hans
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

The methods described allow for reducing particulate emissions from a direction injection engine during a starting phase, while also maintaining the engine start phase within a predetermined threshold. In one particular example, the methods comprise adjusting at least one of a fuel release pressure threshold and enrichment factor based on an engine condition; activating a starting device to rotate a crankshaft coupled to an engine cylinder without injecting any fuel; supplying fuel to the cylinder based on the enrichment factor only when a fuel pressure exceeds the fuel release pressure threshold; and stratifying a cylinder charge while adjusting a fuel injection within a compression phase and/or expansion phase of the engine. In this way, an amount of fuel injected may be evaporated in the combustion chamber while preventing a combustion wall wetting, which allows for reduced particulate emissions, particularly at reduced temperatures. 1. A method for reducing particulate emissions from a direct injection applied-ignition engine during a starting phase , comprising:adjusting at least one of a fuel release pressure threshold and enrichment factor based on one or more engine conditions;activating a starting device to rotate a crankshaft coupled to an engine cylinder without injecting any fuel;supplying fuel to the cylinder based on the enrichment factor only when a fuel pressure exceeds the fuel release pressure threshold; andstratifying a cylinder charge while adjusting at least one fuel injection within one of a compression phase and expansion phase of the engine.2. The method of claim 1 , wherein the at least one adjusted injection is performed close to ignition top dead center claim 1 , and wherein the at least one injection is initiated in a crank angle range defined by at least one of:125° before ignition top dead center and 75° after ignition top dead center;90° before ignition top dead center and 45° after ignition top dead center; and60° before ignition top ...

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Номер записи: 81
07-05-2015 дата публикации

INTERNAL COMBUSTION ENGINE AND METHOD OF DIRECT FUEL INJECTION

Номер: US20150122217A1
Автор: Bullmer Wolfgang, Frick Michael J., LEHMANN Lutz
Принадлежит: Transonic Combustion, Inc.

A direct fuel injection method and an internal combustion engine provided with appropriate sensors and data input lines to an Engine Control Unit (ECU) for performing this method. The method includes inputting at least data inputs representing a piston position, a rotational speed of the internal combustion engine, and a torque demand into an ECU, calculating in the ECU a calculated start of injection (SOI) for the direct fuel injection that is next based on the data inputs, calculating based on the data inputs and the calculated SOI a desired fuel temperature prior to the direct fuel injection that is next, heating fuel with a system delay not to exceed 5 seconds to the desired heated fuel temperature prior to a direct fuel injection, injecting the heated fuel, and repeating the aforementioned method steps for subsequent direct fuel injections. 1. A method of direct fuel injection of fuel into a cylinder of an internal combustion engine , the method comprising:a) inputting at least data inputs representing a piston position, a rotational speed of the internal combustion engine, and a torque demand into an Engine Control Unit (ECU);b) calculating in the Engine Control Unit (ECU) a calculated start of injection (SOI) for the direct fuel injection that is next based on the data inputs;c) calculating based on the data inputs and the calculated start of injection (SOI) a desired fuel temperature prior to the direct fuel injection that is next;d) heating fuel with a system delay not to exceed 5 seconds to the desired heated fuel temperature prior to a direct fuel injection;e) injecting the fuel heated in step d);f) repeating steps a) to e) for subsequent direct fuel injections.2. The method of claim 1 , further comprising sensing the fuel temperature of the fuel heated in step d) and inputting data representing the fuel temperature into the Engine Control Unit (ECU) for providing a closed loop control of that fuel temperature.3. The method of claim 1 , further comprising ...

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Номер записи: 82
24-07-2014 дата публикации

ARRANGEMENT AND METHOD FOR AN INTERNAL COMBUSTION ENGINE WITH DIRECT DUAL FUEL INJECTION

Номер: US20140202420A1
Автор: Jaasma Maria Servatius Alfons, Van Eijck Piet
Принадлежит: VIALLE ALTERNATIVE FUEL SYSTEMS B.V.

An arrangement and method for a combustion engine with direct injection and in particular to switching between two types of fuel is disclosed. A high-pressure pump () is connected to a combustion engine and the high-pressure rail for the direct injection of a fuel. At least two fuel storages () containing petrol and liquefied gas are present. The arrangement allows for switching from one fuel to another. Switching occurs by purging a fuel from the high-pressure pump () and the fuel supply line connected thereto by temporarily collecting the fuel in a purge unit (). The purge unit () is arranged for purging the high-pressure pump (), thus forcing out the prevailing fuel and replacing it with the new fuel. 1. Arrangement for a combustion engine with direct injection , comprising:a high pressure pump connectable to the internal combustion engine via a high-pressure rail, wherein the high pressure pump is configured to pump fuel into the high-pressure rail for the direct injection of fuel, the internal combustion engine;at least two fuel storages for LPG and petrol, respectively;a LPG line running from the LPG storage to an inlet of the high-pressure pump;a petrol fuel line running from the petrol storage to the inlet of the high-pressure pump, the LPG line being separate from the petrol fuel line, said high-pressure pump arranged for switching between directly injecting the LPG and the petrol into the high-pressure rail of the internal combustion engine;a LPG pump received in the first fuel storage and operative to pump the LPG, via the LPG line, to the inlet of the high-pressure pump;a petrol fuel pump operative to pump the petrol, via the petrol fuel line, to the inlet of the high-pressure pump;a first non-return valve provided in the LPG line;a second non-return valve provided in the petrol fuel line; anda control valve upstream from the high pressure pump mounted across the second non-return valve provided in the petrol fuel line, wherein the control valve is ...

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Номер записи: 83
04-05-2017 дата публикации

END SEAL STRUCTURE OF A FUEL RAIL FOR A GASOLINE DIRECT INJECTION ENGINE

Номер: US20170122277A1
Автор: Suzuki Shuji
Принадлежит:

Provided is an end seal structure of a fuel rail for a gasoline direct injection engine, the end seal structure being characterized in that: a collar is joined by brazing to an outer circumference of an end of a pipe of the rail body including a pipe; the end cap having a cap-nut shape and including a sealing projection on an surface thereof facing the opening at the end of the pipe of the rail body, is screwed and fixed to the collar; and the sealing projection of the end cap brings into pressure contact with the end of the opening of the rail body by an axial force created by tightening of the end cap having the cap-nut shape to seal the end of the opening of the rail body. 1. An end seal structure of a fuel rail for a gasoline direct injection engine , the fuel rail including a rail body composed of a pipe that is closed by an end cap or end caps at an end or both ends of the rail body , the end seal structure being characterized in that:a collar is joined by brazing to an outer circumference of the end of the pipe of the rail body, the collar having a short cylindrical body and including an external thread formed on an outer circumferential surface of the collar;the end cap has a cap-nut shape and includes a sealing projection on an surface of the end cap facing an opening at the end of the pipe of the rail body, the sealing projection being placed in abutting contact with an end face of the opening at the end of the pipe, and the end cap is screwed and fixed to the collar; andthe sealing projection of the end cap brings into pressure contact with the end of the opening of the rail body by an axial force created by tightening of the end cap having the cap-nut shape so as to the end of the opening of the rail body.2. The end seal structure of the fuel rail for the gasoline direct injection engine according to claim 1 , wherein a sealing mechanism to seal the rail body by the end cap having the cap-nut shape is configured such that the sealing projection of the ...

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Номер записи: 84
16-04-2020 дата публикации

JET PATTERN OF A MULTI-HOLE INJECTION VALVE FOR INJECTION PRESSURES OF OVER 300 BAR IN SPARK-IGNITION ENGINES HAVING A CENTRAL INJECTOR POSITION

Номер: US20200116073A1
Автор: CAMPE Mario, REISCH Uwe
Принадлежит: VOLKSWAGEN AKTIENGESELLSCHAFT

The invention relates to an internal combustion engine and to a method for operating the internal combustion engine, which has at least one cylinder having a combustion chamber, the combustion chamber being bounded by a cylinder roof, a cylinder wall and a movable cylinder piston, a multi-hole injection nozzle and a spark plug being arranged in a central position in the cylinder roof, the multi-hole injection nozzle injecting fuel into the combustion chamber at injection pressures of >/=300 bar by means of a plurality of injection jets. It is provided that at least one injection jet (i>/=1) injects fuel into a three-dimensional space within the combustion chamber on the intake side, which space lies below an opening of at least one intake valve (104A, 104B) with respect to the direction of the longitudinal central axis (Z) of the cylinder, and at least four injections jets (i>/=4) inject fuel into a three-dimensional space of the combustion chamber on the exhaust side, which space lies below an opening of at least one exhaust valve (105A, 105B). 1. A combustion engine , comprising:at least one cylinder with a combustion chamber, the combustion chamber being bounded by a cylinder roof, a cylinder wall, and a movable cylinder piston,a multi-hole injection nozzle and a spark plug being arranged in a central position in the cylinder roof, andthe multi-hole injection nozzle injecting fuel into the combustion chamber at injection pressures of ≥300 bar via a plurality of injection jets,wherein at least one injection jet injects fuel into a three-dimensional space within the intake-side combustion chamber, which, viewed in the direction of the longitudinal central axis of the cylinder, lies below an opening of at least one intake valve, and inject at least four injection jets of fuel into a three-dimensional space of the exhaust-side combustion chamber located in the direction of the longitudinal central axis of the cylinder below an opening of at least one exhaust valve,{' ...

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Номер записи: 85
31-07-2014 дата публикации

ENGINE START CONTROL APPARATUS FOR HYBRID VEHICLE

Номер: US20140209059A1
Автор: Ideshio Yukihiko, KOJIMA Susumu, Nakanishi Naoki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

In a hybrid vehicle, when using an ignition start to start a direct injection engine while any one of the cylinders has stopped near top dead center, engine revolutions are raised by producing a first explosion in a first cylinder, which is situated before a second cylinder in an ignition sequence and is in an expansion stroke and in which an exhaust value is not open, by directly injecting fuel into the first cylinder and igniting the fuel. Furthermore, assistance in increasing the engine revolutions is started by transmitting assist torque output from a motor-generator to the direct injection engine via a clutch, in a peak section immediately after the start of increase in the engine revolutions. The stopped direct injection engine can be started using a sufficient required assist torque, namely, electrical energy, whereby the electrical energy for engine starting that is always reserved in a battery (accumulator apparatus) is reduced and therefore a travel range is increased and vehicle fuel consumption is improved appropriately. 1. An engine start control apparatus for a hybrid vehicle including a direct injection engine directly injecting fuel into cylinders , a clutch connecting and disconnecting the direct injection engine with respect to a power transmission path , and a rotary machine functioning at least as an electric motor , the direct injection engine and the rotary machine being able to be used as drive power sources for travel , comprising:a controller which is configured to, when starting up the direct injection engine in a state where a second cylinder of a plurality of cylinders is positioned at top dead center, raise engine revolutions by producing a first explosion in a first cylinder situated before the second cylinder in an ignition sequence, the first cylinder being in an expansion stroke and an exhaust valve thereof not being open, by directly injecting fuel into the first cylinder and igniting the fuel, and start assistance in increasing the ...

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Номер записи: 86
12-05-2016 дата публикации

INTERNAL COMBUSTION ENGINE

Номер: US20160131091A1
Автор: Kaneko Naoya, Mitani Shinichi, Uchida Daisuke
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

In the present invention, an internal combustion engine is provided with an in-cylinder fuel injection valve and a secondary air supply device and is formed so as to make possible first catalyst warming control and second catalyst warming control that promote the raising of the temperature of an exhaust gas purification catalyst. The first catalyst warming control comprises control to inject fuel from the in-cylinder fuel injection valve during the compression stroke to form a stratified state, and control to greatly delay ignition timing. The second catalyst warming control comprises control to supply secondary air to an engine exhaust gas passage. The internal combustion engine executes the first catalyst warming control after startup and, after the first catalyst warming control is executed, carries out control (third catalyst warming control) to execute the first catalyst warming control and the second catalyst warming control simultaneously. 1. An internal combustion engine comprising:an in-cylinder fuel injector which injects fuel to an inside of a combustion chamber;an exhaust purification catalyst which is arranged in an engine exhaust passage;a secondary air feed device which feeds air at an upstream side of the exhaust purification catalyst in the engine exhaust passage;a control device which controls the in-cylinder fuel injector and the secondary air feed device; andan ignition device which ignites an air-fuel mixture of fuel and air in the combustion chamber; whereinthe control device is formed to be able to perform first catalyst warm-up control and second catalyst warm-up control which promote a temperature rise of the exhaust purification catalyst,the first catalyst warm-up control includes control which injects fuel from the in-cylinder fuel injector in a compression stroke to form a high concentration region where a concentration of fuel at part of the combustion chamber rises and a low concentration region where the concentration of the fuel is ...

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Номер записи: 87
21-05-2015 дата публикации

Isothermal Compression Based Combustion Engine

Номер: US20150136071A1
Автор: Dortch, JR. Richard W.
Принадлежит:

Systems and methods are disclosed that include operating an isothermal compression based combustion (IsoC) engine by injecting isothermally compressed air into a combustion engine immediately prior to a combustion event in order to increase the efficiency of the engine, improve emissions, and substantially eliminate autoignition and associated design constraints. The IsoC engine utilizes an intercooled compressor to isothermally compress air that is stored in a plurality of capacitance tanks prior to delivery of the compressed air to the combustion engine. The IsoC engine allows combustion to be selectively terminated to increase fuel efficiency, thereby resulting in a hybrid compressed air-motor and internal combustion operated IsoC engine. 1. An isothermal compression based combustion (IsoC) engine , comprising:a compressor configured to isothermally compress a volume of air;at least one capacitance tank coupled to the compressor and configured to store the volume of isothermally compressed air; and receive at least a portion of the volume of isothermally compressed air from the at least one capacitance tank and into a cylinder of the combustion engine;', 'at least one of (1) selectively inject a volume of fuel into the cylinder and ignite the volume of fuel in the presence of the volume of air in the cylinder and (2) selectively omit the injection of a volume of fuel and expand the volume of air in the cylinder using no combustion., 'a combustion engine configured to2. The IsoC engine of claim 1 , wherein the volume of air is received into the cylinder when an associated piston is at about a top dead center (TDC) position.3. The IsoC engine of claim 1 , wherein the volume of air is received into the cylinder when an associated piston is between about a top dead center (TDC) position and about a 20 degree rotation beyond the TDC position.4. The IsoC engine of claim 1 , wherein the compressor comprises a multistage claim 1 , intercooled compressor and is configured ...

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Номер записи: 88
10-05-2018 дата публикации

MULTIPLE AXIS ROTARY ENGINE

Номер: US20180128106A1
Автор: WELKER Alexander H., WELKER Thomas F.
Принадлежит:

A rotary engine including a housing and housing head enclosing a combustion chamber, a piston including an output shaft and a piston disk within the housing and rotatable on a piston rotation axis, a quadrant within the housing and around the piston and rotatable on a quadrant rotation axis, wherein the quadrant rotation axis is acutely angled to the piston rotation axis, and a post surrounding a segment of the piston disk. The post pivots relative to the piston about a post-piston rotation axis that is normal to the face of the piston disk. The post pivots relative to the quadrant about a post-quadrant pivot axis that is perpendicular to the quadrant rotation axis. The post rotates about the quadrant rotation axis relative to the housing. Combusting fuel injected into the combustion chamber expands and pushes on the piston disk to rotate the output shaft about the piston rotation axis. 1. A rotary engine comprising:a housing enclosing a combustion chamber;a piston rotatably mounted about a piston rotation axis and provided within the housing, the piston including an output shaft that longitudinally bisects a piston disk, wherein the piston disk includes a circumferential surface and parallel faces on either side of the output shaft, and wherein the circumferential surface is shaped to conform with an inner surface of the housing;a quadrant rotatably mounted about a quadrant rotation axis and provided within the housing, wherein the quadrant rotation axis is acutely angled to the piston rotation axis, wherein the quadrant includes a pair of quadrant cylinders and a pair of quadrant inserts, the quadrant cylinder having an external surface that rotates over an inner surface of the housing, and the quadrant inserts having a wedge surface that defines a wall of the combustion chamber;a cylindrically shaped post having a disk slot that pivotably receives a segment of the piston disk, wherein the post is provided on a post receiving surface within the quadrant, wherein ...

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Номер записи: 89
10-05-2018 дата публикации

CARBURETOR FOR TWO-STROKE INTERNAL COMBUSTION ENGINE

Номер: US20180128159A1
Автор: Tamura Mineyuki
Принадлежит:

A carburetor for a two-stroke internal combustion engine whereby airtightness is maintained and intake of uncombusted fuel into an air path is prevented. The carburetor includes a circular cylindrical valve hole and a rotary valve fitted into the valve hole such that it can rotate and is disposed perpendicularly across a fuel intake path and an air intake path which are formed substantially parallel with respect to each other, and a fuel supply-side bore which controls the flow rate along the fuel intake path and the air supply-side bore which controls the air capacity along the air path pass through part of the cylindrical portion perpendicularly to the axial direction of the rotary valve, and annular recesses formed in part of a circumferential wall of an outer circumference of the rotary valve so as not to correspond to at least the fuel supply-side bore and the air supply-side bore. 1. A carburetor for a two-stroke internal combustion engine comprisinga carburetor unit,an air path and a fuel intake path, wherein the air path and the fuel intake path are disposed within the carburetor unit vertically parallel to one another,a rotary valve fitted into a valve hole formed in the carburetor unit, wherein the rotary valve is disposed with an axis of the rotary valve substantially perpendicularly to the axial direction of the fuel intake path and the air intake path,a fuel supply-side bore formed through the rotary valve substantially perpendicularly to the axial direction of the rotary valve, wherein the fuel supply-side bore controls the flow rate along the fuel intake path as the rotary valve is rotated,an air supply-side bore formed through the rotary valve substantially perpendicularly to the axial direction, wherein the air supply-side bore controls the air capacity along the air path as the rotary valve is rotated, andone or more an annular recesses formed in one of a part of an outer circumference of a cylindrical portion of the rotary valve or a part of an ...

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Номер записи: 90
10-05-2018 дата публикации

FUEL INJECTOR WITH VARIABLE FLOW DIRECTION

Номер: US20180128228A1
Автор: Zhang Xiaogang
Принадлежит:

A fuel injector and method are disclosed wherein an injector body defines a cavity and passages from an inlet at the cavity through an outside surface of the injector body. Each passage may have a first inner contour at a first angle and a second inner contour at a second angle. An injector pin with a fuel pass-though volume may be movable within the cavity to selectively overlap an outlet of the pass-through volume with an inlet of the passages to selectively direct fuel in varying quantities along the first second inner contours. 1. A fuel injector comprising: a first inner contour forming a first angle with the injector body central axis, and', 'a second inner contour forming a second angle with the injector body central axis;, 'an injector body defining a cavity on an inside thereof and having an outside surface, the injector body having a central axis, one or more passages passing from an inlet at the cavity through the outside surface, the one or more passages each havingan injector pin defining a fuel pass-though volume movable within the cavity to selectively overlap an outlet of the pass-through volume with inlet of the one or more passages to selectively direct fuel in varying quantities along one or both of the first inner contour and the second inner contour.2. The fuel injector of claim 1 , wherein the first inner contour is along a first portion of a conical wall defining the one or more passages claim 1 , and the second inner contour is along a second portion of the conical wall.3. The fuel injector of claim 1 , wherein the inlet has an annular cross-section and the one or more passages has a circular outlet.4. The fuel injector of claim 3 , wherein inlet has a first cross-sectional area claim 3 , and the circular outlet has a second cross-sectional area claim 3 , wherein the first and second cross-sectional areas are substantially equal.5. The fuel injector of claim 1 , wherein the injector pin is configured to move and selectively direct the fuel in ...

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Номер записи: 91
11-05-2017 дата публикации

Diesel Engine Control Device and Control Method

Номер: US20170130667A1
Автор: Isshou Uehara
Принадлежит: Nissan Motor Co Ltd

A direct injection diesel engine is provided with a fuel injection nozzle which is capable of performing a multistage injection. In a middle-or-high load region, in order to decrease soot, an after-injection is performed immediately after a main injection. In a case of fuel with a low Cetane number, the after-injection can cause a worsening of soot. Hence, an ignition delay interval (period of time) of the main injection is determined. In a case where the ignition time delay interval (period of time) is equal to or above a threshold value, the after-injection is inhibited.

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Номер записи: 92
07-08-2014 дата публикации

DIRECT-INJECTION ENGINE COMBUSTION CHAMBER STRUCTURE

Номер: US20140216393A1
Автор: Kakehi Yukihisa, Kamijyou Tomoyuki, Mizuki Tooru, Nagata Shinichi, Uchida Shuuji
Принадлежит: Isuzu Motors Limited

A direct-injection engine combustion chamber structure including, at a top surface of a piston, an inclined surface and an orthogonal surface. The inclined surface, continuous with an inner peripheral wall surface of a cavity, extends outward in a radial direction of the piston and becomes shallower toward an outer side in a radial direction of the piston. The orthogonal surface, continuous with an outer periphery of the inclined surface, without a gap, extends to an outer peripheral surface of the piston and is orthogonal to a central axis of the piston. 18-. (canceled)9. A direct-injection engine combustion chamber structure comprising:a cavity which is a recess provided at a center of a top of a piston and to which fuel is injected from an injection hole of an injector disposed above the piston;an inclined surface which is continuous with an inner peripheral wall surface of the cavity, extends outward in a radial direction of the piston, and gets shallower toward an outer side of the radial direction of the piston; andan orthogonal surface which is continuous with an outer periphery of the inclined surface without a gap, extends to an outer peripheral surface of the piston, and is orthogonal to a central axis of the piston, whereinthe inclined surface and the orthogonal surface are provided at a top surface of the piston.10. The direct-injection engine combustion chamber structure according to claim 9 , wherein an angle of the inclined surface is set within a range of 1 to 30 degrees from a side of the orthogonal surface.11. The direct-injection engine combustion chamber structure according to claim 9 , wherein a shape of the cavity is of a reentrant type claim 9 , a toroidal type claim 9 , or a shallow pan type.12. The direct-injection engine combustion chamber structure according to claim 10 , wherein a shape of the cavity is of a reentrant type claim 10 , a toroidal type claim 10 , or a shallow pan type.13. The direct-injection engine combustion chamber ...

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Номер записи: 93
07-08-2014 дата публикации

Control device for internal combustion engine

Номер: US20140216394A1
Автор: Kazuhisa Matsuda, Koji Morita, Takahiro TSUKAGOSHI
Принадлежит: Toyota Motor Corp

When an alcohol mixed fuel is supplied to an internal combustion engine, the magnitude of the alcohol concentration (more specifically, ethanol concentration Cetha) is determined (step 1005 ), and the magnitude of an operation state temperature (more specifically, cooling water temperature THW) is determined on the basis of said determination (step 1015 ). When the alcohol concentration is high and the operation state temperature is low, the generation of intermediate products (more specifically, aldehydes), which are alcohol oxides contained in unburned alcohol mixed fuel, is promoted, and the intermediate products generated are trapped in an intake passage by opening an intake valve in the expansion stroke of the internal combustion engine (step 1055 ).

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Номер записи: 94
07-08-2014 дата публикации

FUEL MANAGEMENT SYSTEM FOR VARIABLE ETHANOL OCTANE ENHANCEMENT OF GASOLINE ENGINES

Номер: US20140216395A1
Автор: Bromberg Leslie, Cohn Daniel R., Heywood John B.
Принадлежит:

Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency or the engine. 115-. (canceled)16. A fuel management system for a spark ignition engine where the fuel management system controls fueling from a first fueling system that directly inject fuel into at least one cylinder as a liquid and a second fueling system that injects fuel into a region outside of the cylinder;and where the fraction of fuel in the cylinder that is introduced by the first fueling system increases with increasing torque so as to prevent knock;and where the fuel management system uses spark retard so as to reduce the fraction of fuel in the cylinder that is introduced from the first fueling system.17. The fuel management system of where closed loop control using a knock detector is employed to increase the fraction of fuel introduced by the first fueling system so as to prevent knock as the torque is increased.18. The fuel management system of where during at least part of the driving cycle there is a torque range where both fueling system are used at the same torque.19. The fuel management system of where the increase in fee fraction of feel in the cylinder that is provided by the first fueling system as torque is increased is substantially equal to that needed to prevent knock.20. The fuel management system of where only the first fueling system is used when the ...

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Номер записи: 95
07-08-2014 дата публикации

DIRECT INJECTION GASOLINE ENGINE AND METHOD OF CONTROLLING THE DIRECT INJECTION GASOLINE ENGINE

Номер: US20140216396A1
Автор: Araki Keiji, Fujimoto Hidefumi, Ichikawa Kazuo, IKAI Takashi, Kai Shingo, Masuyama Susumu, Nakahashi Hirokazu, NAKAO Yusuke, NARAHARA Kazuaki, Seto Masatoshi, Takahashi Yoshitomo, TANAKA Tatsuya, Tanita Yoshio, Yamashita Hiroyuki
Принадлежит: MAZDA MOTOR CORPORATION

A direct injection engine includes an ignition assistance section applying energy to fuel injected into a cylinder using an injector to assist auto-ignition combustion of the fuel when the engine is within an auto-ignition combustion operation range. A start time of fuel injection is set within a period from a terminal stage of a compression stroke to a compression top dead center. The energy is applied to the fuel injected into the cylinder in a period from start of the fuel injection to an initial stage of an expansion stroke such that a time of a specific crank angle when an increase rate of in-cylinder pressure, which is a ratio of a change in the in-cylinder pressure to a change in a crank angle in motoring the engine, reaches a negative maximum value overlaps a combustion period when a combustion mass percentage of the fuel ranges from 10% to 90%. 1. A direct injection gasoline engine having an auto-ignition combustion operation range allowing auto-ignition combustion of fuel injected into a cylinder by an injector and containing at least gasoline , the engine having a geometric compression ratio ranging from 18 to 40 , both inclusive , the engine comprising:an injection control section configured to control fuel injection of the injector; andan ignition assistance section configured to apply energy to the fuel injected into the cylinder by the injector to assist the auto-ignition combustion of the fuel, when the engine is within the auto-ignition combustion operation range, whereinwhen the engine is within the auto-ignition combustion operation range, the injection control section sets a start time of the fuel injection within a period from a terminal stage of a compression stroke to a compression top dead center, andthe ignition assistance section applies the energy to the fuel injected into the cylinder in a period from start of the fuel injection to an initial stage of an expansion stroke such that a time of a specific crank angle ranging from 4° C.A to 15 ...

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Номер записи: 96
19-05-2016 дата публикации

FUEL MANAGEMENT SYSTEM FOR VARIABLE ETHANOL OCTANE ENHANCEMENT OF GASOLINE ENGINES

Номер: US20160138529A1
Автор: Bromberg Leslie, Cohn Daniel R., Heywood John B.
Принадлежит:

Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency or the engine. 1. A spark ignition engine which is fueled with gasoline and ethanol where ethanol is introduced into at least one engine cylinder in such a way that vaporization of ethanol provides a rate of octane enhancement as a function of ethanol energy fraction that is at least 20 octane numbers for an increase in ethanol energy fraction of 0 to 100%.2. The spark ignition engine of where ethanol and gasoline are directly injected into the engine.3. The spark ignition engine of where ethanol is injected so as to produce a non-uniform distribution which increases the knock resistance.4. The spark ignition engine of where ethanol is injected so as to provide a higher concentration in the gas region.5. The spark ignition engine of where ethanol is injected so as provide a higher concentration in the periphery of the cylinder.6. The spark ignition engine of where swirl is employed.7. The spark ignition engine of where the direct injection of ethanol provides about 13 degrees C. of cooling for each 10% of the fuel energy that is provided by the ethanol.8. The spark ignition engine of where the evaporation of the ethanol provides at least a 4 octane number increase for a 20% increase in fuel energy that is provided by ethanol.9. A spark ignition engine which is fueled with gasoline ...

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Номер записи: 97
28-05-2015 дата публикации

CONTROL DEVICE FOR DIRECT INJECTION GASOLINE ENGINES

Номер: US20150144093A1
Автор: Fukube Tsugio, Harada Yuji, Seto Masatoshi, TANAKA Tatsuya, Yamashita Hiroyuki
Принадлежит:

A control device for direct injection gasoline engines includes a fuel injection control part (engine control device) composed to control a fuel injection aspect of an injector. The fuel injection control part changes an injection mode of the injector by changing the lift amount of the injector and the injection interval of the fuel respectively. The fuel injection control part switches between a first injection mode, which includes multiple times of the fuel injection with the small lift amount of the injector and the small interval of the fuel injection, and a second injection mode, which includes multiple times of the fuel injection with the bigger lift amount of the injector and the larger interval of the fuel injection than those of the first injection mode, according to an operating state of the engine body. 1. A control device for a direct injection gasoline engine , comprising:an engine body having a cylinder;an injector for injecting fuel including at least gasoline into the cylinder and being configured so that the larger a lift amount of the injector is, the larger a fuel injection opening area of the injector becomes; anda fuel injection control part for restraining a fuel injection aspect of the injector, wherein the fuel injection control part changes injection modes of the injector by changing each of the lift amount of the injector and an injection interval of the fuel, and switches between a first injection mode, which includes multiple fuel injections at a number of times that are spaced by a small fuel injection interval and with a small lift amount of the injector, and a second injection mode, which includes multiple fuel injections at a number of times that are spaced by a larger fuel injection interval and with a larger lift amount of the injector than those of the first injection mode, according to an operating state of the engine.2. The control device for direct injection gasoline engines according to claim 1 , wherein the fuel injection ...

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Номер записи: 98
07-08-2014 дата публикации

Minimizing Alcohol Use In High Efficiency Alcohol Boosted Gasoline Engines

Номер: US20140222319A1
Автор: Daniel R. Cohn, Leslie Bromberg
Принадлежит: ETHANOL BOOSTING SYSTEMS LLC

A number of systems and methods are disclosed which increase the replenishment interval for anti-knock fluid. This is especially important during activities which require a large amount of anti-knock fluid, such as towing. In some embodiments, the systems and methods are used to reduce anti-knock fluid consumption. For example, changes to engine operation, such as rich operation, spark retarding, upspeeding, and variable valve timing, all serve to reduce the amount of anti-knock fluid required to eliminate knocking. In other embodiments, the composition of the anti-knock fluid is modified, such as by using a higher octane fluid, or through the addition of water to the anti-knock fluid. In other embodiments, the replenishment interval is increased through a larger anti-knock fluid storage capacity. In one embodiment, a three tank system is used where the third tank can be used to store gasoline or anti-knock fluid, depending on the driving conditions.

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Номер записи: 99
24-05-2018 дата публикации

SPARK-IGNITED DIRECT-INJECTION ENGINE COMBUSTION SYSTEMS

Номер: US20180142607A1
Автор: Sczomak David P., Solomon Arun S., SPRUIT William F.
Принадлежит:

A direct-injection stratified charge internal combustion engine includes a combustion cylinder to receive an air-fuel mixture, and an air intake port to inlet air into the combustion cylinder. The direct-injection engine also includes a fuel injector configured to deliver fuel within the cylinder in a spray pattern substantially aligned to a cylinder central axis to create the air-fuel mixture. A spark igniter is located within a path of the spray pattern to ignite combustion of the air-fuel mixture. The dire-injection engine further includes a movable piston defining a lower boundary of the combustion cylinder to contain the combustion of the air-fuel mixture. The piston is configured to include a bowl portion having local geometric features located on an intake port side of the combustion cylinder to redirect fluid flow towards a vortex in fluid communication with a combustion location near the cylinder central axis. 1. A direct-injection stratified charge internal combustion engine comprising:a combustion cylinder to receive an air-fuel mixture;an air intake port to inlet air into the combustion cylinder;a fuel injector configured to deliver fuel within the cylinder in a spray pattern substantially aligned to a cylinder central axis to create the air-fuel mixture;a spark igniter located within a path of the spray pattern to ignite combustion of the air-fuel mixture; anda movable piston defining a lower boundary of the combustion cylinder to contain the combustion of the air-fuel mixture, wherein the piston includes a bowl portion having an angled re-entrant edge located on an intake port side of the combustion cylinder to redirect fluid flow towards a vortex in fluid communication with a combustion location near the cylinder central axis.2. The direct-injection engine of wherein the bowl portion is asymmetric relative to the cylinder central axis claim 1 , the bowl portion defining a first opening edge on the intake port side of the combustion cylinder that is ...

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Номер записи: 100