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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 1627. Отображено 100.
31-05-2012 дата публикации

Advanced Optics and Optical Access for Laser Ignition for Gas Turbines Including Aircraft Engines

Номер: US20120131927A1
Автор: Chukwueloka Obiora Umeh, Gabor Ast, Gary Lee Leonard, Herbert Kopecek, Mark Patrick Kelsey, Richard Wade Stickles, Sara Rocci Denis, Shai Birmaher, Steven Clayton Vise
Принадлежит: General Electric Co

A laser ignition system for an internal combustion engine, and more specifically a gas turbine engine, is provided. The system including a laser light source configured to generate a laser beam, an ignition port configured to provide optimized optical access of the laser beam to a combustion chamber and an optical beam guidance component disposed between the laser light source and the ignition port. The optical beam guidance component is configured to include optimized optic components to transmit the laser beam to irradiate on a fuel mixture supplied into the combustion chamber to generate a combustor flame in a flame region. A method for igniting a fuel mixture in an internal combustion engine is also presented.

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Номер записи: 1
04-04-2013 дата публикации

Internal combustion engine

Номер: US20130081584A1
Автор: Hiroshi Sotani, Hitoshi Yokotani, Toru Kisaichi
Принадлежит: Honda Motor Co Ltd

An internal combustion engine can include a first ignition plug disposed on the inner side of a range surrounded by a plurality of intake valves and a plurality of exhaust valves with a cylinder head viewed in parallel to a cylinder axial line and standing uprightly along the cylinder axial line. A second ignition plug is inclined with respect to the cylinder axial line on the outer side of the range. The second ignition plug is disposed on the opposite side to a valve driving mechanism with respect to the cylinder axial line on the outer side of the range.

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Номер записи: 2
25-04-2013 дата публикации

Method for operating a laser spark plug for a combustion engine

Номер: US20130098331A1
Автор: Juergen Raimann, Martin Weinrotter, Pascal Woerner
Принадлежит: ROBERT BOSCH GMBH

In a method for operating a laser spark plug for a combustion engine, the laser spark plug having a precombustion chamber, within an operating cycle of the combustion engine, the laser spark plug irradiates an ignition location situated inside the precombustion chamber with a plurality of laser ignition pulses temporally offset from one another.

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Номер записи: 3
13-06-2013 дата публикации

CYLINDER HEAD FOR VEHICLE

Номер: US20130146016A1
Автор: KANG Bongseong
Принадлежит: HYUNDAI MOTOR COMPANY

A cylinder head for a vehicle has combustion chambers, each of which includes one exhaust opening and two intake openings, wherein each of the combustion chambers includes an intake port formed with one side thereof branched so as to be connected to the two intake openings, and a spark plug for igniting an air-fuel mixture within a corresponding combustion chamber, wherein an exhaust port may be connected to the exhaust opening of the respective combustion chambers, and wherein the exhaust port has one side thereof branched that may be connected to the exhaust opening of the respective combustion chambers and the other side thereof may be integrally formed in an integrated shape. 1. A cylinder head for a vehicle having combustion chambers , each of which includes one exhaust opening and two intake openings , wherein each of the combustion chambers comprises:an intake port formed with one side thereof branched so as to be connected to the two intake openings; anda spark plug for igniting an air-fuel mixture within a corresponding combustion chamber,wherein an exhaust port is connected to the exhaust opening of the respective combustion chambers, andwherein the exhaust port has one side thereof branched that is connected to the exhaust opening of the respective combustion chambers and the other side thereof is integrally formed in an integrated shape.2. The cylinder head for the vehicle of claim 1 ,wherein the exhaust opening of the respective combustion chambers is formed in a portion at which the respective combustion chambers are adjacent to each other, andwherein the spark plug of the respective combustion chambers is disposed to an outside relative to the exhaust port of the respective combustion chambers.3. The cylinder head for the vehicle of claim 2 , wherein the spark plug of the respective combustion chambers is adapted to slant at a set angle from a base line perpendicular to a center line connecting centers of the combustion chambers claim 2 , to an ...

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Номер записи: 4
27-06-2013 дата публикации

BARRIER DISCHARGE DEVICE

Номер: US20130160752A1
Автор: Kim Yoonho, Nakajima Akira, Oi Hiroaki, SERIZAWA Takeshi
Принадлежит: DAIHATSU MOTOR CO., LTD.

An object of the present invention is to provide a barrier discharge device capable of increasing the combustion efficiency of an engine while overcoming the problems of the cumbersome replacement of the electrodes and the commercialization of the device. 1. A barrier discharge device of an engine , comprising:a dielectric body; andat least two barrier discharge electrodes which are held inside the dielectric body and to which voltages for barrier discharge are applied;wherein the respective barrier discharge electrodes are not exposed to an inside of a cylinder bore and are arranged so as to surround the cylinder bore.2. The barrier discharge device according to claim 1 , wherein the barrier discharge electrodes are embedded into a head gasket.3. The barrier discharge device according to claim 1 ,wherein the barrier discharge electrodes include three or more electrodes and the barrier discharge electrodes to which voltages are applied can be changed according to an internal pressure of a cylinder. The invention relates to a barrier discharge device for use in an engine, which includes a dielectric body and a barrier discharge electrode.Conventionally, in the case of, for example, a spark ignition engine, a structure has been known in which multipoint ignition electrodes (hereinafter referred to as “peripheral electrodes”) are embedded into a head gasket which is disposed between a cylinder head and a cylinder block in order to obtain larger flames than only using a single ignition gap (see, for example, Patent Document 1).In such a structure, flames spread both concentrically and three-dimensionally in a combustion chamber from a central ignition plug arranged at the center of a ceiling of the combustion chamber and a plurality of peripheral electrodes. Accordingly, the time required for the flames to spread over the entire space of the combustion chamber is shortened, resulting in less time-loss and approaching a theoretical cycle, so that thermal efficiency can ...

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Номер записи: 5
25-07-2013 дата публикации

METHOD, CYLINDER, AND ENGINE WITH CENTRAL IGNITION SPARK POSITION

Номер: US20130186367A1
Автор: LAIMBOECK FRANZ J.
Принадлежит: MAHLE KOENIG KOMMANDITGESELLSCHAFT GMBH & CO KG

A method for the combustion of a fuel-air mixture present in the combustion chamber of an engine cylinder. At least a part of the fuel, in particular all of the fuel, is introduced immediately prior to the ignition time with a mean fuel droplet size of ≦20 μm, preferably ≦10 μm, as defined by the mean Sauter diameter, in the direction of at least one ignition path situated in the central region of the piston crown (), and the fuel-air mixture is ignited by way of one or a number of successive ignition sparks. 1. A method for the combustion of a fuel-air mixture present in the combustion chamber of an engine cylinder , the method comprising:introducing at least a part of the fuel, in particular all of the fuel, immediately before the ignition time with a mean fuel droplet size of ≦20 μm, preferably ≦10 μm, as defined by the mean Sauter diameter, in a direction of at least one ignition path, and igniting the fuel-air mixture by one or a plurality of successive ignition sparks;wherein the fuel is introduced into at least one, in particular one or two ignition paths preferably situated in the central region of the piston crown, and is ignited there in the ignition path formed by two ignition electrodes.2. The method as claimed in claim 1 , wherein the one or more ignition sparks for the ignition of the fuel-air mixture are maintained until the mixture has ignited.3. The method as claimed in claim 1 , wherein the compression ratio V of the diesel-air mixture is selected to be sufficiently low claim 1 , preferably in the range 11:1≧V≧5:1 claim 1 , that auto-ignition of the mixture is prevented.4. The method as claimed in claim 1 , wherein the level of the breakthrough voltage for the one or more ignition sparks is selected to be 25 to 55 kV claim 1 , preferably 30 to 50 kV claim 1 , and/or in that 300 to 1500 mJ claim 1 , preferably 400 to 1200 mJ of energy is imparted to the one or more ignition sparks claim 1 , and/or in that a plurality of ignition sparks are ignited ...

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Номер записи: 6
10-10-2013 дата публикации

Ignition device and ignition method for internal combustion engine

Номер: US20130263834A1
Автор: Kimihiko Tanaya
Принадлежит: Mitsubishi Electric Corp

The ignition device for the internal combustion engine includes: an ignition plug including a first electrode and a second electrode opposed to each other via a predetermined gap, for generating in the predetermined gap a spark discharge for igniting a combustible mixture in a combustion chamber of the internal combustion engine; an ignition coil including a primary coil and a secondary coil, for generating a high voltage in the secondary coil by supplying or stopping a primary current flowing through the primary coil, and then applying the generated high voltage to the first electrode; and a control unit for driving the ignition coil for a plurality of times within a single ignition process, and changing a primary voltage for driving the ignition coil within the single ignition process.

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Номер записи: 7
05-01-2017 дата публикации

Internal combustion engine

Номер: US20170002788A1
Автор: Armin Gallatz, Volker Gallatz
Принадлежит: MWI MICRO WAVE IGNITION AG

An internal combustion engine including at least one cylinder with a piston moveable therein in an engine block in which microwaves are introduced into a combustion chamber through a microwave window, wherein the combustion chamber is formed by a piston base and a cylinder head, characterized in that the combustion chamber includes a combustion chamber wall which functions as a microwave window at least in portions wherein the combustion chamber wall is made from a wall layer that is made from a ceramic material in which wall layer at least one annular circumferential hollow conductor cavity is arranged with at least one inlet opening for the microwave and which includes at least one outlet opening for the microwave that is run in the annular hollow conductor cavity of the wall layer. In general the invention provides safe ignition of lean fuel air mixtures.

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Номер записи: 8
07-01-2016 дата публикации

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE

Номер: US20160003209A1
Автор: BERTSCH Dietmar, Ott Harald, SCHAUPP Uwe
Принадлежит: DAIMLER AG

A method for operating a combustion engine is disclosed. In an embodiment, the method includes: generating several sparks to ignite a fuel-air mixture in a combustion chamber by an ignition device of the combustion engine, determining a combustion duration of at least one of the sparks, detecting a deviation of an actual operation from a target operation of the combustion engine at least depending on the combustion duration, compensating for the deviation by implementing at least one measure which influences a combustion of the fuel-air mixture in the combustion chamber, determining the combustion duration of the chronological first of the sparks, allocating the first spark to a first spark type or to a second spark type depending on the combustion duration, and implementing the at least one measure if at least one value which characterizes a frequency of one of the spark types exceeds a threshold value. 110.-. (canceled)11. A method for operating a combustion engine , comprising the steps of:generating a plurality of sparks to ignite a fuel-air mixture in a combustion chamber by an ignition device of the combustion engine;determining a combustion duration of at least one of the plurality of sparks;detecting a deviation of an actual operation from a target operation of the combustion engine depending on the combustion duration;compensating for the deviation by implementing a measure which influences a combustion of the fuel-air mixture in the combustion chamber;determining the combustion duration of a chronological first spark of the plurality of sparks;allocating the first spark to a first spark type or to a second spark type depending on the combustion duration of the first spark; andimplementing a measure if a value which characterizes a frequency of one of the spark types exceeds a threshold value.12. The method according to claim 11 , wherein the combustion duration is determined by the ignition device.13. The method according to claim 12 , wherein a signal ...

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Номер записи: 9
14-01-2016 дата публикации

Ignition control device for internal combustion engine

Номер: US20160010615A1
Автор: Kenichi Ishii
Принадлежит: Fuji Electric Co Ltd

An ignition control device for an internal combustion engine can include an ignition coil supplying a discharge voltage to an ignition device of an ignition combustion engine, a voltage-controlled type semiconductor element connected to a primary side of the ignition coil and an ignition control section capable of repeating, multiple time in an ignition period, operations of turning ON and turning OFF of the voltage-controlled type semiconductor element by giving a gate signal to a gate of the voltage-controlled type semiconductor element. The ignition control section can include an active element that discharges gate charges accumulated on the gate of the voltage-controlled type semiconductor element upon turning OFF operation of the voltage-controlled type semiconductor element to the ground, and that is connected between the gate and a resistor at a side of the gate inserted in a gate wiring connected to the gate of the voltage-controlled type semiconductor element.

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Номер записи: 10
21-01-2021 дата публикации

AIR-FUEL RATIO CONTROL DEVICE

Номер: US20210017924A1
Автор: Tanaka Makoto, Wada Masatake
Принадлежит:

An air-fuel ratio control device sets a target air-fuel ratio and performs an air-fuel ratio control based on the target air-fuel ratio for an engine of a spark ignition type. The air-fuel ratio control device includes a lean combustion determination unit that determines whether a lean combustion is performed in the engine at the target air-fuel ratio, the target air-fuel ratio being set leaner than the theoretical air-fuel ratio; a target NOx setting unit that sets a target NOx concentration according to an operation state of the engine; an acquisition unit that acquires an actual NOx concentration detected by using a NOx concentration detection unit in an exhaust passage of the engine; and a correction unit that corrects the target air-fuel ratio based on the target NOx concentration and the actual NOx concentration when determination is made that lean combustion is performed. 1. An air-fuel ratio control device configured to set a target air-fuel ratio and to perform an air-fuel ratio control based on the target air-fuel ratio for an engine of spark ignition type , the air-fuel ratio control device comprising:a lean combustion determination unit configured to determine whether lean combustion is performed in the engine based on a target air-fuel ratio, the target air-fuel ratio being set on a lean side of a theoretical air-fuel ratio;a target NOx setting unit configured to set a target NOx concentration according to an operating state of the engine;an acquisition unit configured to acquire an actual NOx concentration detected by using a NOx concentration detection unit in the exhaust passage of the engine; anda correction unit configured to correct the target air-fuel ratio based on the target NOx concentration and the actual NOx concentration, when determination is made that the lean combustion is performed.2. The air-fuel ratio control device according to claim 1 , wherein to correct the target air-fuel ratio such that a lean degree increases when the actual ...

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Номер записи: 11
26-01-2017 дата публикации

IGNITION APPARATUS

Номер: US20170022957A1
Автор: DOI Kaori, Hayashi Naoto, KYOUDA Kenta, NAKAYAMA Satoru, TERADA Kenechiyo, TORIYAMA Makoto
Принадлежит:

An ignition apparatus inputs energy during a predetermined energy input period after the interruption of a primary electric current by an ignition switch and a discharge of an ignition plug caused by a secondary electric current. Moreover, the ignition apparatus includes a blow-off detection unit that detects, during the energy input period IGW after the start of the discharge by the ignition plug, occurrence of blow-off of the discharge. When the secondary electric current I drops below a blow-off detection electric current threshold value Ibo at a time instant tbo in a “second region” where it is impossible to perform a re-discharge after blow-off, the blow-off detection unit determines that blow-off has occurred and the ignition apparatus stops the energy input from an energy input unit to an ignition coil. By preventing unnecessary energy input, it is possible to suppress unnecessary electric power consumption and wear of electrodes of the ignition plug. 1. An ignition apparatus that controls operation of an ignition plug for igniting an air-fuel mixture in a combustion chamber of an internal combustion engine , the ignition apparatus comprising:an ignition coil that includes a primary coil in which a primary electric current supplied from a DC power supply flows, and a secondary coil which is connected to an electrode of the ignition plug and in which a secondary voltage is generated by supply and interruption of the primary electric current and thus a secondary electric current flows;an ignition switch that is connected to a ground side of the primary coil and switches the supply and interruption of the primary electric current according to an ignition signal, the ground side being an opposite side of the primary coil to the DC power supply;an energy input means capable of inputting energy during a predetermined energy input period after the interruption of the primary electric current by the ignition switch and a discharge of the ignition plug caused by the ...

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Номер записи: 12
26-01-2017 дата публикации

IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE

Номер: US20170022958A1
Автор: Koenen Robert J., Paskov Andrew
Принадлежит: Briggs & Stratton Corporation

An ignition system for an internal combustion engine that utilizes a single primary coil and a single secondary coil to drive a pair of spark plugs. Current flowing in both a first direction and a second direction passes through the primary coil. The current flowing through the primary coil induces corresponding current in the secondary coil, which flows from the secondary coil to one of two spark plugs. Each spark plug is coupled to the secondary coil such that each of the two spark plugs receives current flowing only in a single direction. The current flowing through the ignition system can be from either a power source or created by the rotation of a flywheel having a series of magnet clusters. 17-. (canceled)8. An ignition system for use with an internal combustion engine , comprising:a power supply;a primary coil positioned to receive either a first current flowing in a first direction or a second current flowing in a second direction from the power supply;a secondary coil positioned such that first and second currents are induced into the secondary coil from the primary coil;a first spark plug spark plug coupled to the secondary coil such that only the first current induced in the secondary coil passes to the first spark plug;a second spark plug coupled to the secondary coil such that only the second current induced in the secondary coil passes to the second spark plug; anda controller having a first output and a second output, wherein when the first output is actuated, the first current flows in the first direction through the primary coil and when the second output is activated, the second current flows in the second direction through the primary coil.9. The ignition system of wherein the first and second currents flow in opposite directions through the primary coil.10. The ignition system of wherein the primary coil forms part of an H-bridge circuit connecting the power supply to the primary coil.11. The ignition system of wherein the power supply is a ...

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Номер записи: 13
29-01-2015 дата публикации

DIESEL ENGINE COMBUSTION CHAMBER, METHOD FOR IGNITING A FUEL-AIR MIXTURE IN A COMBUSTION CHAMBER OF A DIESEL ENGINE AND DIESEL ENGINE

Номер: US20150027408A1
Автор: Borissovskiy Vladimir
Принадлежит:

The present invention relates to a combustion chamber of a diesel engine in accordance with the preamble of Claim a method for igniting a fuel-air mixture in a combustion chamber of a diesel engine in accordance with the preamble of Claim and a diesel engine in accordance with the preamble of Claim 12173467. Ignition chamber of a combustion engine , presenting a piston with a piston bottom surface and a cylinder head () and possessing an ignition chamber axis () , whereby in the piston bottom surface and/or in the cylinder head surface at least one depression ( , ) is foreseen , characterized by the fact that one ignition device () is disposed alongside the ignition chamber axis () , the ignition device being adjusted so as to create linear ignition alongside the ignition chamber axis.23132. Ignition chamber as described in claim 1 , characterized by the fact that depression () is created in the cylinder head () claim 1 , whereby depression () has the form of a cone whose tip is not oriented towards the surface of piston () claim 1 , the ignition device being positioned in the tip of the cone.33132. Ignition chamber as described in claim 1 , characterized by the fact that depression () is created in the cylinder head () claim 1 , whereby depression () has the form of a truncated cone whose upper surface is not oriented towards the surface of piston () claim 1 , the ignition device being positioned in the center of the upper surface of the truncated cone.4313. Ignition chamber as described in claim 1 , characterized by the fact that depression () is created in the cylinder head () claim 1 , whereby depression () has the form of a step created by the combination between a cone and at least two truncated cones or by the combination of at least two truncated cones claim 1 , the ignition device being positioned at the tip of the cone or in the center of the upper surface of the truncated cone.5441. Ignition chamber as described in one of the claims above claim 1 , ...

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Номер записи: 14
28-01-2021 дата публикации

ENGINE

Номер: US20210025350A1
Автор: TAKEZAKI Takayuki
Принадлежит: SUBARU CORPORATION

An engine includes a cylinder head, an ignition plug disposed in the cylinder head, a head partition wall disposed on the cylinder head to surround a periphery of the ignition plug, an injector disposed in the cylinder head and having an injection hole exposed outside the head partition wall, a cylinder block coupled to the cylinder head, a cylinder formed in the cylinder block, a piston disposed in the cylinder, and a piston partition wall disposed on a crown surface of the piston to face the head partition wall in a sliding direction of the piston. The height of the piston partition wall from the crown surface on the side closer to the injector is less than the height of the piston partition wall from the crown surface on the side farther from the injector. 2. The engine according to claim 1 , wherein a groove extending in an injection direction of the injector is formed withinan inner wall surface of the piston partition wall.3. The engine according to claim 1 , wherein the head partition wall is configured in such a manner that a height from an inner wall surface of the cylinder head on a side closer to the injector is greater than a height from the inner wall surface of the cylinder head on a side farther from the injector.4. The engine according to claim 2 , wherein the head partition wall is configured in such a manner that a height from an inner wall surface of the cylinder head on a side closer to the injector is greater than a height from the inner wall surface of the cylinder head on a side farther from the injector.5. The engine according to claim 1 , wherein a clearance is formed at at least a part in a circumferential direction between the head partition wall and the piston partition wall when the head partition wall and the piston partition wall are located closest to each other.6. The engine according to claim 2 , wherein a clearance is formed at at least a part in a circumferential direction between the head partition wall and the piston partition ...

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Номер записи: 15
04-02-2021 дата публикации

Gas Admission Valve and Fuel Gas Supply Assembly with Leakage Containment Flowpath

Номер: US20210033046A1
Автор: BlEYER Bejarnin, FINCH Steven Caffail, SIXEL EIKE
Принадлежит: CATERPILLAR MOTOREN GMBH & CO. KG

A fuel gas supply assembly for an internal combustion engine defines a leakage containment flowpath which includes a leakage containment space formed between the body of a gas admission valve and the wall defining the inner surface of a compartment formed in the cylinder head of the engine in which the gas admission valve is mounted. The gas admission valve is sealingly connected in fluid communication with the fuel gas conduit of a conduit assembly via a first aperture of the compartment so that both the fuel gas flowpath and the leakage containment space extend along and at least partially around a common portion of the length axis of the compartment. In another aspect, a gas admission valve includes an internal leakage containment flowpath formed by a leakage containment compartment which is interposed between the actuator and the fuel gas flowpath within the gas admission valve and sealingly connected to the leakage containment flowpath. 1. An assembly for supplying a fuel gas to a combustion chamber of an internal combustion engine , comprising:a gas admission valve,a housing, the housing forming apart of a cylinder head of the engine,a conduit assembly,a fuel gas flowpath, anda leakage containment flowpath fluidly separated from the fuel gas flowpath;the gas admission valve comprising:a body, the body including an inlet and an outlet, the fuel gas flowpath extending within the body from the inlet to the outlet;a valve element; andan actuator operable to move the valve element to open and close the fuel gas flowpath to control a flow of fuel gas from, the inlet to the outlet;the housing comprising:a wall, the wall defining a compartment, the compartment having:a first, open end;a second end opposite the first end;a length axis extending between the first and second ends;a first aperture formed in the wall between the first and, second ends; anda second aperture formed in the wall for fluidly connecting the compartment with the combustion chamber of the engine; ...

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Номер записи: 16
07-02-2019 дата публикации

Systems and methods of controlling pre-primary ignition of an internal combustion engine

Номер: US20190040837A1
Автор: Cherian A. Idicheria, Hanho Yun, Paul M. Najt
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of controlling pre-primary ignitions of an internal combustion engine includes accessing data corresponding to an exhaust gas recirculation error and data corresponding to at least one of a rotational speed of the engine, a throttle position of a throttle, and a combustion mode of the engine. A voltage of the electrical power to be applied to an ignition source and a number of pre-primary ignitions to be applied are calculated based on the data corresponding to the exhaust gas recirculation error and the data corresponding to at least one of the rotational speed of the engine, the throttle position, and the combustion mode of the engine.

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Номер записи: 17
06-02-2020 дата публикации

FUEL INJECTOR WITH DUCT ASSEMBLY

Номер: US20200040857A1
Автор: Kantrow Daniel, Kurtz Eric
Принадлежит:

Methods and systems are provided for a fuel injector of an internal combustion engine. In one example, a fuel injector includes a body having a flange shaped to seat within a shoulder of a passage of a cylinder head. The shoulder is positioned at an inner side of the cylinder head such that the fuel injector is coupled to the cylinder head at the inner side by the flange. 1. A system , comprising:a cylinder head including a passage extending from an outer surface to an inner surface of the cylinder head, a shoulder formed within the passage proximate to the inner surface, the shoulder forming a larger passage opening at the inner surface than the outer surface, the inner surface forming a top of a combustion chamber; anda fuel injector including a nozzle and a plurality of ducts arranged at a distal end of the fuel injector, where the distal end includes a flange that is wider than a body of the fuel injector extending toward a proximal end of the fuel injector, the flange adapted to seat within the shoulder.2. The system of claim 1 , wherein each duct of the plurality of ducts includes a first end and a second end claim 1 , the first end positioned closer to the flange than the second end claim 1 , and wherein a length between each second end of opposing ducts of the plurality of ducts is equal to or greater than a diameter of the passage.3. The system of claim 1 , wherein a length of each duct of the plurality of ducts is greater than half a diameter of the passage.4. The system of claim 1 , further comprising a plurality of protrusions extending from the inner surface of the cylinder head claim 1 , the plurality of protrusions shaped to engage with a plurality of counterpart grooves of an engine block.5. The system of claim 4 , wherein each protrusion of the plurality of protrusions includes a terminal end offset from the inner surface claim 4 , with a clearance formed between the inner surface and each terminal end claim 4 , and wherein the plurality of ducts ...

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Номер записи: 18
03-03-2022 дата публикации

ENGINE WITH COMBUSTION CHAMBER

Номер: US20220065190A1
Автор: Harada Yuji, Hori Junki, KOGA Yoshiyuki, Koshiro Yudai, Kuramochi Akira, Nagasawa Takeshi, Seto Masatoshi, Yamashita Hiroyuki
Принадлежит:

An engine is provided, which includes a combustion chamber defined by a cylinder head and a piston inside a cylinder of a cylinder block, a fuel injection nozzle provided to the cylinder head and formed in a tip-end part with an injection hole from which fuel is injected into the combustion chamber, the tip-end part being exposed to the combustion chamber, and a passage-forming member formed with a passage through which the fuel injected from the injection hole passes. An outer circumferential surface of the passage-forming member contacts a combustion-chamber ceiling surface of the cylinder head, and the passage of the passage-forming member includes an enlarged part gradually increasing in a cross-sectional area thereof from an upstream side to a downstream side of the passage.

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Номер записи: 19
10-03-2022 дата публикации

VARIABLE ENERGY IGNITION SYSTEMS, METHODS, AND APPARATUSES

Номер: US20220074379A1
Автор: "OConnor Daniel J.", Kolhouse J. Steven, Saad Philipe F.
Принадлежит:

A method of controlling an ignitor for a spark-ignition engine includes receiving, by a controller, at least one of fuel quality data regarding a fuel for the spark-ignition engine or a characteristic regarding the ignitor for the spark-ignition engine. The method additionally includes controlling, by the controller, an ignition energy characteristic of the ignitor in response to the at least one of the fuel quality data regarding the fuel or the characteristic regarding the ignitor for the spark-ignition engine. 1. A method , comprising:receiving, by a controller, at least one of fuel quality data regarding a fuel for a spark-ignition engine or a characteristic regarding an ignitor for the spark-ignition engine; andcontrolling, by the controller, an ignition energy characteristic of the ignitor in response to the at least one of the fuel quality data regarding the fuel or the characteristic regarding the ignitor for the spark-ignition engine.2. The method of claim 1 , wherein the characteristic regarding the ignitor comprises a condition of the ignitor claim 1 , the condition comprising at least one of an age of the ignitor claim 1 , a number of operating hours of the ignitor claim 1 , or a number of firing cycles of the ignitor.3. The method of claim 1 , wherein controlling the ignition energy characteristic of the ignitor comprises adjusting at least one of a spark current of the ignitor claim 1 , a spark voltage of the ignitor claim 1 , a spark duration for the ignitor claim 1 , or a current waveshape of the ignitor.4. The method of claim 1 , wherein controlling the ignition energy characteristic of the ignitor comprises adjusting a number of sparks generated by the ignitor within a single combustion cycle.5. The method of claim 1 , wherein receiving the at least one of the fuel quality data regarding the fuel comprises receiving at least one of a methane number or a lower heating value of the fuel claim 1 , and wherein the method further comprises comparing the ...

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Номер записи: 20
12-03-2015 дата публикации

CYLINDER HEAD HAVING WEAR RESISTANT LASER PEENED PORTIONS

Номер: US20150068485A1
Автор: Graham Curtis J., Simpson Trent A.
Принадлежит: CATERPILLAR INC.

A cylinder head for an internal combustion engine system is disclosed. The cylinder head has at least one fuel injector. Further, the cylinder head has at least one valve reciprocally moveable with at least one valve guide disposed within the cylinder head. The cylinder head includes a portion. The portion defines an injector mount surface. The cylinder head also includes at least one injector bore disposed within the cylinder head. The injector bore is structured and arranged to receive the injector therein. The cylinder head also includes a peening area being defined on the injector mount surface of the cylinder head. The peening area defines a region being laser peened, such that a compressive stress is induced in the peening area. The compressive stress is induced to an effective depth of approximately up to 2 mm from the injector mount surface. 1a portion of the cylinder head defining an injector mount surface and at least one injector bore disposed within the cylinder head, the injector bore being structured and arranged to receive the injector therein; anda peening area being defined on the injector mount surface of the cylinder head, the peening area defining a region being laser peened such that a compressive stress of around 300 MPa to 600 MPa is induced in the peening area, to an effective depth of approximately up to 2 mm from the injector mount surface.. A cylinder head for an internal combustion engine system using at least one fuel injector to deliver fuel from the cylinder head, and the cylinder head having at least one valve reciprocally moveable with at least one valve guide disposed within the cylinder head, the cylinder head comprising: The present disclosure relates to a cylinder head for an internal combustion engine, and more particularly to portions of the cylinder head which undergo laser peening.Some portions of a cylinder head, such as, for example, valve guides and injector bores of an Internal Combustion (IC) engine are subjected to high ...

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Номер записи: 21
27-02-2020 дата публикации

NOTCHED SPARK PLUG

Номер: US20200063687A1
Автор: Beyer Timothy
Принадлежит:

Methods and systems are provided for a spark plug of an internal combustion engine. In one example, a spark plug includes a housing section having a first groove and an opposing, second groove. A tool including a first protrusion and second protrusion may couple with the first and second grooves of the spark plug in order to drive the spark plug to either of only two coupled positions with a cylinder head. 1. A spark plug , comprising:a housing section having a plurality of planar surfaces arranged annularly around a central axis of the spark plug, including a first planar surface arranged opposite a second planar surface, and coupled to a threaded section of the spark plug; andonly two grooves in the housing section, including a first groove in the first planar surface and a second groove in the second planar surface.2. The spark plug of claim 1 , wherein the second groove is radially aligned with a base of a ground electrode of the spark plug relative to the central axis.3. The spark plug of claim 2 , wherein a first axis arranged parallel to a second axis extending radially from the central axis and intersecting a center of the base of the ground electrode intersects each of a center of the first groove and a center of the second groove.4. The spark plug of claim 3 , wherein the center of the second groove is offset from the center of first groove by 180 degrees around the central axis.5. The spark plug of claim 1 , wherein the housing section is arranged between a terminal of the spark plug and a radial protrusion of the spark plug claim 1 , the radial protrusion arranged between the housing section and a ground electrode of the spark plug in a direction of the central axis claim 1 , with the threaded section positioned between the radial protrusion and the ground electrode.6. A method claim 1 , comprising:driving an assembly robot to couple a spark plug to a cylinder head of an engine; anddriving the assembly robot to adjust a position of the spark plug within ...

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Номер записи: 22
09-03-2017 дата публикации

CYLINDER HEAD COVER WITH INTEGRAL SLEEVE

Номер: US20170067412A1
Автор: McDowell Robert Earl
Принадлежит:

A system includes a cylinder head for a reciprocating engine and a cylinder head cover configured to couple to the cylinder head. The cylinder head cover may include an ignition plug sleeve extension configured to house a portion of an ignition plug within the cylinder head cover. The ignition plug sleeve extension is integral to the cylinder head cover. 1. A system , comprising:a cylinder head for a reciprocating engine; anda cylinder head cover configured to couple to the cylinder head, wherein the cylinder head cover comprises an ignition plug sleeve extension configured to house a portion of an ignition plug within the cylinder head cover, and the ignition plug sleeve extension is integral to the cylinder head cover.2. The system of claim 1 , wherein the cylinder head cover and the ignition plug sleeve extension are cast.3. The system of claim 1 , wherein the ignition plug sleeve extension defines an inner annular wall of the cylinder head cover.4. The system of claim 3 , wherein the inner annular wall is centrally located within the cylinder head cover.5. The system of claim 4 , wherein a portion of the inner annular wall extends into the cylinder head.6. The system of claim 3 , wherein the inner annular wall defines a first bore portion having a first inner diameter and a second bore portion having a second inner diameter claim 3 , and the first inner diameter is greater than the first bore portion.7. The system of claim 1 , wherein the cylinder head comprises an ignition plug sleeve claim 1 , and the ignition plug sleeve extension and ignition plug sleeve directly contact each other.8. The system of claim 7 , wherein the ignition plug sleeve extension and the ignition plug sleeve directly contact each other at an interface between the cylinder head cover and the cylinder head.9. The system of claim 7 , wherein the ignition plug sleeve extension and the ignition plug sleeve directly contact each other within the cylinder head.10. The system of claim 1 , ...

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Номер записи: 23
05-06-2014 дата публикации

VALVE COVER WITH INTEGRATED SPARKPLUG TUBE

Номер: US20140150746A1
Автор: Reinhart Paul Thomas, Valencia Frank Acierno
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A valve cover for an engine and a method is provided. The valve cover may include a cover body, and a sparkplug tube formed integrally with the cover body. In this way, any distortion of the bottom end of the sparkplug tubes due to, for example removal and reinstallation may not provide a leakage path. 1. A valve cover for an engine comprising:an integral structure including a cover body and a sparkplug tube formed integrally with and molded-into the cover body, a sealed joint between the sparkplug tube and cover body eliminated;a Coil On Plug (COP) located in the sparkplug tube and extending partway out of; anda COP boot sealingly coupled inside the COP.2. The valve cover of claim 1 , wherein the COP couples to a top outer edge of the sparkplug tube.3. The valve cover of claim 2 , wherein the cover body comprises a first material and the sparkplug tube comprises a second material claim 2 , wherein the first material is different from the second material.4. The valve cover of claim 3 , wherein the sparkplug tube includes a sealing arrangement on or adjacent a distal end thereof for sealing with a cylinder head.5. The valve cover of claim 4 , wherein the sealing arrangement includes an O-ring groove and an O-ring configured for sealing engagement with an annular surface of a sparkplug well in the cylinder head.6. The valve cover of claim 4 , wherein the sealing arrangement includes a face seal disposed on an edge of the sparkplug tube and configured for sealing engagement with a base of a sparkplug well.7. The valve cover of claim 2 , wherein the cover body includes a substantially planar coupling edge for coupling with a cylinder head claim 2 , and wherein the sparkplug tube extends past the coupling edge.8. A valve cover comprising:a covering body having a coupling edge configured to couple with a cylinder head of an engine; andan enclosed passage having a second end fixedly coupled with the covering body and a first end for sealing engagement with a sparkplug well ...

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Номер записи: 24
26-03-2015 дата публикации

ENGINE

Номер: US20150083083A1
Автор: Hibino Mitsuhiro, Maetani Kazuki
Принадлежит:

A marine engine includes an exhaust manifold, a valve cover, a top cover, and a fuel supply pipe. The exhaust manifold collects exhaust gases discharged from a plurality of cylinders. The valve cover is a cover that covers all of a plurality of valves for air intake or air discharge to or from the cylinders. The top cover is a cover that covers the valve cover. The fuel supply pipe is arranged in a space between the valve cover and the top cover, and allows a fuel to flow therethrough. The top cover is provided with a partition that is arranged so as to separate the side where the exhaust gas flows immediately after being discharged from the exhaust manifold from the side where the fuel supply pipe is arranged. 1. An engine comprising:an exhaust manifold that collects exhaust gases discharged from a plurality of cylinders;a valve cover that covers all of a plurality of valves for air intake or air discharge to or from the cylinders;a plate-like cover that covers the valve cover; anda fuel tube arranged in a space between the valve cover and the plate-like cover, the fuel tube allowing a fuel to flow therethrough,the plate-like cover being provided with a partition that is arranged so as to separate a side where the exhaust gas flows immediately after being discharged from the exhaust manifold from a side where the fuel tube is arranged.2. The engine according to claim 1 , whereinthe partition has a height that occupies half or more of the distance between the valve cover and the plate-like cover.3. The engine according to claim 1 , whereinthe partition is formed so as to extend from one end to the other end of the plate-like cover with respect to a crank axis direction.4. The engine according to claim 1 , whereinthe partition is a plate-like portion that is formed integrally with the plate-like cover and that protrudes perpendicularly from the plate-like cover.5. The engine according to claim 1 , whereinthe valve cover being provided with a second partition that is ...

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Номер записи: 25
24-03-2016 дата публикации

IGNITION APPARATUS

Номер: US20160084215A1
Автор: ISHITANI Masahiro, KONDOU Yuuki, NAKAYAMA Satoru, Oono Takashi, SUGIURA Akimitsu, TORIYAMA Makoto
Принадлежит: Denso Corporation

An ignition apparatus includes an adjuster. The adjuster adjusts, according to at least one of a primary voltage and a secondary voltage detected by a voltage detector, at least one of an application timing and an application level of auxiliary electrical energy to an ignition coil while main electrical energy is applied to a spark plug by the ignition coil. The application timing includes whether the auxiliary electrical energy is applied to the ignition coil. 1. An ignition apparatus for igniting , via a spark plug , fuel in a combustion chamber of an internal combustion engine according to a DC voltage supplied from a DC power supply , the ignition apparatus comprising:an ignition coil comprising a primary coil and a secondary coil, the primary coil having one end connected to a ground terminal, the ignition coil being configured to boost the DC voltage applied to the primary coil to generate a secondary voltage across the secondary coil, and apply the secondary voltage to the spark plug as main electrical energy, thus generating a discharge in the combustion chamber;at least one auxiliary power supply for applying auxiliary electrical energy to the one end of the primary coil of the ignition coil, the one end of the primary coil being connected to the ground terminal;a voltage detector that detects at least one of a primary voltage generated across the primary coil and the secondary voltage;an adjuster that adjusts, according to at least one of the primary voltage and the secondary voltage detected by the voltage detector, at least one of an application timing and an application level of the auxiliary electrical energy to the ignition coil while the main electrical energy is applied to the spark plug by the ignition coil, the application timing including whether the auxiliary electrical energy is applied to the ignition coilwherein:the adjuster comprises:a determiner configured to compare at least one of the primary voltage and the secondary voltage detected by ...

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Номер записи: 26
23-03-2017 дата публикации

PISTON

Номер: US20170082059A1
Автор: ANDO Koki, Katakura Yuichi
Принадлежит:

A piston is used for an engine including: an ignition plug disposed in the vicinity of a central axis of a cylinder; intake and exhaust ports disposed at positions where the ignition plug is interposed therebetween; and an injector disposed at a position offset from the ignition plug toward the intake port to inject fuel sprays toward a crown surface of the piston. The piston includes: a recess formed by recessing the crown surface of the piston with respect to other portions of the crown surface, in which the recess includes a step on an outer peripheral edge over the entire circumference thereof with respect to the other portions, and a pair of lateral sides formed straightly so as to extend substantially in parallel to a straight line connecting the injector and the ignition plug when seen in a direction of the cylinder axis. 1. A piston used for an engine that includes:an ignition plug disposed in the vicinity of a central axis of a cylinder;an intake port and an exhaust port disposed at positions where the ignition plug is interposed therebetween; and a recess that is formed by recessing the crown surface of the piston with respect to other portions of the crown surface, wherein', 'the recess includes a step on an outer peripheral edge over the entire circumference thereof with respect to the other portions of the crown surface, and a pair of lateral sides formed straightly so as to extend substantially in parallel to a straight line that connects the injector and the ignition plug when seen in a direction of the cylinder axis., 'an injector disposed at a position offset from the ignition plug toward the intake port to inject a plurality of fuel sprays toward a crown surface of the piston, the piston comprising2. The piston according to claim 1 , wherein the injector is a multiple hole injector that forms a plurality of fuel sprays claim 1 , and the outer peripheral edge of the recess is disposed adjacently to hitting areas formed at least by the last fuel ...

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Номер записи: 27
24-03-2016 дата публикации

IGNITION UNIT FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20160087412A1
Автор: Senftleben Hartwig, Vogel Manfred
Принадлежит:

An ignition device for a combustion chamber of an internal combustion engine includes a first electrode and a second electrode, which is movable with the aid of an actuator. The ignition device is configured to generate a first ignition spark when a contact between the first and second electrode is interrupted. To accomplish this, the second electrode is moved away from the first electrode. A third electrode is also provided, which is spaced apart from the first electrode. With the aid of the third electrode, a second ignition spark can be generated by moving the second electrode away from the other two electrodes. With the three electrodes, the ignition unit is configured to allow the two ignition sparks to pass through a volume formed between the electrodes in the direction transverse to the longitudinal extension of the ignition sparks in the course of the movement of the second electrode. 111-. (canceled)12. An ignition device for a combustion chamber of an internal combustion engine , comprising: a first electrode;', 'a second electrode, which is movable with the aid of an actuator, wherein the ignition arrangement is configured to generate a first ignition spark when a contact between the first electrode and the second electrode is interrupted by moving the second electrode away from the first electrode; and', 'a third electrode, which is spaced apart from the first electrode, wherein a second ignition spark is additionally generated when the second electrode is moved away from the other two electrodes;, 'an ignition arrangement, includingwherein the three electrodes are configured so that the two ignition sparks pass through a volume formed between the electrodes in the direction transverse to the longitudinal extension of the ignition sparks in the course of the movement of the second electrode.13. The ignition device of claim 12 , wherein the three electrodes are situated so that claim 12 , before the movable second electrode moves claim 12 , it contacts ...

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Номер записи: 28
30-03-2017 дата публикации

IGNITION PLUGS IN PRECHAMBER AND MAIN COMBUSTION CHAMBER OF AN IC ENGINE

Номер: US20170089252A1
Автор: Hiltner Joel, Loetz Andrew
Принадлежит: CATERPILLAR INC.

An internal combustion engine having a main combustion chamber, a prechamber, a first ignition plug and a second ignition plug. The main combustion chamber in fluid communication with the prechamber. The first ignition plug disposed in the prechamber for igniting a charge to form a flame jet directed into the main combustion chamber. The second ignition plug disposed in the main combustion chamber for igniting the charge in the main combustion chamber in the path of the flame jet from the prechamber. The second ignition plug configured to ignite the charge in the main combustion chamber prior to the ignition of the charge by the first ignition plug in the prechamber. 1. An internal combustion engine comprising:a main combustion chamber in fluid communication with a prechamber;a first ignition plug disposed in the prechamber for igniting a charge to form a flame jet directed into the main combustion chamber; anda second ignition plug disposed in the main combustion chamber for igniting the charge in the main combustion chamber in the path of the flame jet from the prechamber, the second ignition plug configured to ignite the charge in the main combustion chamber prior to the ignition of the charge by the first ignition plug in the prechamber.2. The internal combustion engine of claim 1 , further comprising a charge valve configured to introduce the charge into the prechamber.3. The internal combustion engine of claim 1 , wherein the second ignition plug is disposed near the center of the main combustion chamber.4. The internal combustion engine of claim 1 , wherein the second ignition plug is proximate to the prechamber.5. The internal combustion engine of claim 1 , further comprising a controller configured to control the firing timings of the first and the second ignition plugs.6. The internal combustion engine of claim 1 , wherein the prechamber is centrally disposed with the main combustion chamber.7. The internal combustion engine of further comprising an ...

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Номер записи: 29
07-04-2016 дата публикации

CYLINDER HEAD

Номер: US20160097341A1
Автор: Fujiwara Masahiro, Hara Hiroki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A cylinder head located between a cylinder block and a head cover includes a cam chamber arranged in an upper portion of the cylinder head and opening toward the head cover, a projection projecting from a bottom surface of the cam chamber toward the head cover and including an injector insertion hole, and a seating surface arranged in the bottom surface of the cam chamber and receiving a valve spring. The projection includes a top surface defining an injector seal surface around the injector insertion hole. The projection includes a first portion and a second portion separated from the seating surface by different distances along the bottom surface. The distance of the second portion from the seating surface is longer than that of the first portion. A side surface of the first portion is set to have a smaller draft angle than a side surface of the second portion. 1. A cylinder head located between a cylinder block and a head cover , the cylinder head comprising:a cam chamber arranged in an upper portion of the cylinder head, wherein the cam chamber opens toward the head cover;a projection that projects from a bottom surface of the cam chamber toward the head cover, wherein the projection includes an injector insertion hole; anda seating surface arranged in the bottom surface of the cam chamber, wherein the seating surface receives a valve spring, whereinthe projection includes a top surface that defines an injector seal surface around the injector insertion hole, the projection includes a first portion and a second portion that are separated from the seating surface by different distances along the bottom surface,the distance of the second portion from the seating surface is longer than that of the first portion from the seating surface, anda side surface of the first portion is set to have a smaller draft angle than a side surface of the second portion.2. The cylinder head according to claim 1 , whereinthe side surface of the first portion has a negative draft ...

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Номер записи: 30
07-04-2016 дата публикации

VARIABLE IGNITION ENERGY MANAGEMENT

Номер: US20160097366A1
Автор: Geckler Samuel C., Kolhouse Steven J., Stroh David
Принадлежит: Cummins, Inc.

A method for energy ignition management of a spark-ignition engine includes receiving, by a controller, at least one ignition energy characteristic to affect control of at least one combustion cylinder. The method further includes controlling the at least one combustion cylinder via the controller. Controlling the at least one combustion cylinder via the controller includes adjusting the at least one ignition energy characteristic in response to at least one operating condition of the engine. The at least one ignition energy characteristic is a magnitude of one of a current or voltage of spark energy. 1. A method for energy ignition management of a spark-ignition engine , the method comprising:receiving, by a controller, at least one ignition energy characteristic to affect control of at least one combustion cylinder, andcontrolling the at least one combustion cylinder via the controller, the control comprising adjusting the at least one ignition energy characteristic in response to at least one operating condition of the engine,wherein the at least one ignition energy characteristic is a magnitude of at least one of a current or voltage of spark energy,wherein controlling the at least one combustion cylinder comprises controlling each of a plurality of combustion cylinders individually.2. The method of claim 1 , wherein adjusting the at least one ignition energy characteristic comprises independently adjusting the magnitude of spark energy of each of a plurality of combustion cylinders.3. The method of claim 1 , wherein the at least one operating condition comprises at least one condition selected from the group consisting of a sensed EGR fraction claim 1 , an estimated EGR fraction claim 1 , a sensed air-fuel ratio claim 1 , an estimated air-fuel ratio claim 1 , a sensed in-cylinder pressure claim 1 , an estimated in-cylinder pressure claim 1 , a sensed in-cylinder temperature claim 1 , an estimated in-cylinder temperature claim 1 , a knock detection metric claim ...

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Номер записи: 31
12-05-2022 дата публикации

Method of controlling engine, and engine system

Номер: US20220145824A1
Автор: Noriyuki Ota, Yoshihisa Nou
Принадлежит: Mazda Motor Corp

A method of controlling an engine is provided, which includes the steps of injecting main fuel by a fuel injector during an intake stroke or a compression stroke, providing a mixture gas containing fuel and air inside a cylinder, applying by an ignition device a high voltage between electrodes of a spark plug at a timing when the mixture gas is not ignited, detecting a parameter related to a current value of an electric-discharge channel generated between the electrodes, determining by a controller whether the detected parameter is within a range between a first threshold and a second threshold to determine a flowing state of a vortex inside the cylinder, operating the spark plug to carry out a supplemental ignition when the parameter is determined to be outside the range, and igniting the mixture gas by operation of the spark plug after the supplemental ignition.

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Номер записи: 32
14-04-2016 дата публикации

CYLINDER HEAD FOR AN AUTO-IGNITION ENGINE WITH DIRECT INJECTION

Номер: US20160102629A1
Автор: Heinig Klaus-Peter, Huth Florian, Quix Hans Guenter
Принадлежит:

An auto-ignition engine system is provided. The auto-ignition engine system includes a cylinder having an intake valve and an exhaust valve coupled thereto, an opening in a cylinder head defining a portion of the boundary of the cylinder, a glow plug heating element extending through the opening into the cylinder, an insert at least partially surrounding a glow plug heating element and coupled thereto, and an adjustment mechanism configured to alter the position of the glow plug heating element and the insert in the cylinder. 1. A cylinder head for an auto-ignition engine with direct injection , in a motor vehicle , comprising:a main body which has at least one opening for an injection valve and at least one receiving region for a glow plug, the main body including;an insert which is arranged in the receiving region and which is provided for at least partially receiving the glow plug and which is linearly displaceable relative to the main body such that a volume, which can be at least partially delimited by the main body, of a combustion chamber of the auto-ignition engine can be varied, the insert being displaceable between a first position and a second position, and a second compression ratio based on the volume of the combustion chamber in the second position being higher than a first compression ratio based on the volume of the combustion chamber in the first position.2. The cylinder head as claimed in claim 1 , where the insert is displaceable together with the glow plug in a manner dependent on the operating temperature of the auto-ignition engine.3. The cylinder head as claimed in claim 1 , where the insert is displaceable together with the glow plug in a manner independent of the operating temperature of the auto-ignition engine.4. The cylinder head as claimed in claim 1 , further comprising a displacement arrangement which is provided for displacing the insert together with the glow plug.5. The cylinder head as claimed in claim 4 , where the displacement ...

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Номер записи: 33
04-04-2019 дата публикации

INTERNAL-COMBUSTION ENGINE WITH DIRECT FUEL INJECTION IN THE DIRECTION OF THE INTAKE GAS MOTION

Номер: US20190101048A1
Автор: AMBRAZAS Didier, GAUTROT Xavier, LAGET Olivier, TROST Julien
Принадлежит:

The present invention relates to an internal-combustion engine comprising a combustion chamber provided with a single intake valve (), a single exhaust valve (), two plugs () and a fuel injector (). Furthermore, the combustion chamber comprises means for forming an aerodynamic swirling motion structure of the intake gas in the combustion chamber. Besides, fuel injector () is oriented so as to inject the fuel into the central area of the combustion chamber in the direction of the aerodynamic swirling motion structure. 1. An internal-combustion engine comprising at least one cylinder in which a piston moves , the cylinder being associated with a combustion chamber provided with a single intake valve , a single exhaust valve , a fuel injector and two plugs , wherein the combustion chamber comprises means for forming an aerodynamic motion structure of the intake gas with turbulences within the combustion chamber , and the fuel injector is oriented so as to inject the fuel into the central area of the combustion chamber between the two plugs , in the direction of the aerodynamic motion structure of the intake gas.2. A combustion engine as claimed in claim 1 , wherein the fuel injector is arranged between the intake valve and a plug.3. A combustion engine as claimed in claim 1 , wherein the fuel injector has a machined part of cylindrical shape.4. A combustion engine as claimed in claim 1 , wherein the fuel injector is inclined with respect to the direction of the axis of cylinder at an angle below 15°.5. A combustion engine as claimed in claim 1 , wherein the fuel injector is arranged within the combustion chamber claim 1 , close to the periphery of the combustion chamber.6. A combustion engine as claimed in claim 1 , wherein the plugs are positioned between said intake valve and the exhaust valve.7. A combustion engine as claimed in claim 1 , wherein the fuel injector is positioned at a distance ranging between 5 and 15 mm claim 1 , more specifically between 9 and 10 mm ...

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Номер записи: 34
04-04-2019 дата публикации

ELLIPTICALLY-SHAPED COMBUSTION CHAMBER

Номер: US20190101049A1
Автор: AMBRAZAS Didier, GAUTROT Xavier, LAGET Olivier, TROST Julien
Принадлежит:

The present invention relates to a combustion chamber of a combustion engine. The combustion chamber comprises a single intake valve (), a single exhaust valve (), a fuel injector () and two plugs (). According to the invention, the combustion chamber is substantially elliptical () and the components of the combustion chamber are arranged as follows: 1. A combustion chamber of an internal-combustion engine comprising at least one cylinder in which a piston moves , the combustion chamber comprising a single intake valve , a single exhaust valve , a single fuel injector and two plugs , wherein the combustion chamber substantially has the shape of an ellipse , the intake valve and the exhaust valve are arranged at the ends of major axis of the ellipse , the plugs are located close to minor axis of the ellipse and the fuel injector is located inside ellipse , close to the periphery of ellipse between the intake valve and a plug.2. A combustion chamber as claimed in claim 1 , wherein the ellipse comprises a recess extending towards the intake valve and arranged substantially symmetrically to the fuel injector with respect to semi-major axis.3. A combustion chamber as claimed in claim 2 , wherein the recess is substantially rectilinear.4. A combustion chamber as claimed in claim 1 , wherein the intake valve is tangential to the ellipse.5. A combustion chamber as claimed in claim 1 , wherein the exhaust valve is tangential to the ellipse.6. A combustion chamber as claimed in claim 1 , wherein the ratio of the diameter of the intake valve to the diameter of the exhaust valve ranges between 1 and 3.7. A combustion chamber as claimed in claim 1 , wherein the length of semi-major axis of the ellipse is substantially equal to the radius of the cylinder of the combustion engine.8. A combustion chamber as claimed in claim 1 , wherein the length of semi-minor axis of the ellipse ranges between 70 and 90% of the radius of the cylinder of the combustion engine.9. An internal- ...

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Номер записи: 35
21-04-2016 дата публикации

CAM CARRIER MODULE FOR VEHICLES

Номер: US20160108765A1
Автор: SONG Kye Oong, YOON Seok Jun
Принадлежит:

A cam carrier module for vehicles may include a cam carrier coupled with a cylinder head, an injector penetrating through the cam carrier and the cylinder head, and a sealing device provided between the cam carrier and the cylinder head and enclosing the injector to implement sealing of the injector. 1. A cam carrier module for vehicles , comprising:a cam carrier coupled with a cylinder head;an injector penetrating through the cam carrier and the cylinder head; anda sealing device provided between the cam carrier and the cylinder head and enclosing the injector to implement sealing of the injector.2. The cam carrier module of claim 1 , wherein the sealing device includes:an injector fixed part provided at a middle of the cam carrier, having a bottom surface adhered to the cylinder head and provided with an injector hole through which the injector is inserted;a sealing groove formed on the bottom surface of the injector fixed part and enclosing the injector hole; anda gasket provided in the sealing groove and made of an elastic material sealing between the cam carrier and the cylinder head.3. The cam carrier module of claim 2 , wherein the gasket is configured to protrude to an outside of the sealing groove to adhere the cylinder head.4. The cam carrier module of claim 2 , further comprising:a detection groove provided on the bottom surface of the injector fixed part and having a first end connected to a portion of the sealing groove and a second end configured to open toward a side of the injector fixed part.5. The cam carrier module of claim 2 ,wherein an edge part is provided to form an edge of the cam carrier,wherein a bottom surface of the edge part and a top surface of the cylinder head are bonded by a sealing adhesive, andwherein a width of the bottom surface of the edge part is narrower than a width of the top surface of the cylinder head to form a bonding band by the sealing adhesive along a line at which a side of the edge part meets the top surface of the ...

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Номер записи: 36
28-04-2016 дата публикации

FUEL INJECTOR

Номер: US20160115924A1
Автор: Meek George A., PANESAR Lukhbir, WICKSTONE Michael Colin
Принадлежит:

A fuel injector, preferably a dual fuel injector, for an internal combustion engine is disclosed. The fuel injector comprises first and second valve needles () arranged to control the injection of first and second fuels, first and second control chambers () associated with the first and second valve needles () respectively, a first control valve () comprising a first control valve member () and arranged to vary the pressure of a control fluid in the first control chamber () so as to cause opening and closing movement of the first valve needle (), and a second control valve () comprising a second control valve member () and arranged to vary the control fluid pres sure in the second control chamber () so as to cause opening and closing movement of the second valve needle (). The first and second control valve members () are arranged for linear movement along a common control valve axis. 1. A fuel injector for an internal combustion engine , comprising:first and second valve needles arranged to control the injection of first and second fuels;first and second control chambers associated with the first and second valve needles respectively;a first control valve comprising a first control valve member and arranged to vary the pressure of a control fluid in the first control chamber so as to cause opening and closing movement of the first valve needle; anda second control valve comprising a second control valve member and arranged to vary the control fluid pressure in the second control chamber so as to cause opening and closing movement of the second valve needle;wherein both the first and second control valves are housed within a generally cylindrical body portion of the injector, and the first and second control valve members are arranged for linear movement along a common control valve axis offset from and parallel to a center axis of the injector body portion.2. The fuel injector according to claim 1 , wherein the first fuel is a gaseous fuel claim 1 , and wherein the ...

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Номер записи: 37
28-04-2016 дата публикации

Fuel Injector

Номер: US20160115925A1
Автор: Darley James, Rutledge Sarah, White Colin
Принадлежит: Perkins Engines Company Limited

A fuel injector for injecting fuel vapor into a combustion chamber of an internal combustion engine is disclosed. The fuel injector may be configured to reduce production of particulate matter during combustion of fuel. The fuel injector may have a spray nozzle having a tip and a plurality of spray discharge orifices formed on the tip. The plurality of spray discharge orifices being configured to discharge fuel vapor at a flow rate of 750-795 cc/min. 1. A fuel injector for injecting fuel vapor into a combustion chamber of a diesel engine , comprising:an injector body having a central axis (P) and being mountable to the diesel engine so as to project into the combustion chamber;a spray nozzle having a tip, the spray nozzle extending longitudinally from the injector body; anda plurality of spray discharge orifices formed on the tip, the plurality of spray discharges orifices being configured to discharge fuel vapor at a flow rate of 750-795 cc/min.2. The fuel injector according to wherein the fuel vapor is discharged at a flow rate of 770 cc/min.3. The fuel injector according to wherein the fuel vapor is discharged at a pressure of 9.8 MPa.4. The fuel injector according to wherein a cylinder side back pressure is 5 Mpa.5. The fuel injector according to wherein the leak off back pressure is 10 KPa.6. The fuel injector according to wherein each spray discharge orifice has a center axis having an angle (α) of approximately 65.50 to 69.50 relative to the central axis (P).7. The fuel injector according to wherein each spray discharge orifice has a center axis (Q) having an angle (α) of approximately 67.50 relative to the central axis (P).8. The fuel injector according to comprising five spray discharge orifices disposed radially about the central axis (P).9. The fuel injector according to wherein the five spray discharge orifices are mutually angularly spaced about the central axis (P).10. The fuel injector according to wherein the apex of the tip is collinear with the ...

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Номер записи: 38
18-04-2019 дата публикации

IGNITION DEVICE FOR IGNITING AN AIR/FUEL MIXTURE IN A COMBUSTION CHAMBER

Номер: US20190113016A1
Автор: Armbrecht Gunnar, Awakowicz Peter, Bergner Andre, Fuchs Martin, Groger Sven, Musch Thomas, Notzon Gordon, Van Delden Marcel, Wollitzer Michael
Принадлежит:

An ignition device for igniting an air-fuel mixture in a combustion chamber, in particular an internal combustion engine, having a spark plug, which has a first electrode and a second electrode, and a high voltage source for generating an electrical high voltage pulse at an output of the high voltage source and having a high frequency voltage source for generating an electrical high frequency alternating voltage at an output of the high frequency voltage source, wherein the output of the high voltage source is electrically connected to the first electrode of the spark plug via a first electrical conductor path such that the high voltage pulse is applied to the first electrode, wherein the second electrode is electrically connected to an electrical ground potential, wherein the spark plug has a third electrode, wherein the output of the high frequency voltage source is electrically connected to the third electrode via a second electrical conductor path, such that the high frequency alternating voltage is applied to the third electrode. 1. An ignition device for igniting an air/fuel mixture in a combustion chamber , having a spark plug which has a first electrode and a second electrode , having a high voltage source for generating an electrical high voltage pulse at an output of the high voltage source and having a high frequency voltage source for generating an electrical high frequency alternating voltage at an output of the high frequency voltage source , wherein the output of the high voltage source is electrically connected to the first electrode of the spark plug via a first electrical conductor path such that the high voltage pulse is applied to the first electrode , wherein the second electrode is electrically connected to an electrical ground potential , wherein the spark plug has a third electrode , and wherein the output of the high frequency voltage source is electrically connected to the third electrode via a second electrical conductor path such that the ...

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Номер записи: 39
14-05-2015 дата публикации

IGNITION CONTROL DEVICE FOR ENGINE

Номер: US20150128577A1
Автор: Eguchi Takuya
Принадлежит:

An ignition control device for an engine provided with ignition plugs for each cylinder. The ignition control device includes a sensor that detects a signal that determines whether the engine is in an idling state or not, and an ignition control unit that determines whether the engine is in the idling state on the basis of a signal from the sensor and controls the ignition plugs to be simultaneously ignited if the engine is in the idling state, and controls part of the ignition plugs to be ignited if the engine is in a state other than the idling state. 1. An ignition control device for an engine provided with a plurality of ignition plugs for each cylinder , the ignition control device comprising:a sensor that detects a signal that determines whether the engine is in an idling state or not; andan ignition control unit that determines whether the engine is in the idling state on the basis of a signal from the sensor and controls the plurality of ignition plugs to be simultaneously ignited if the engine is in the idling state, and controls part of the plurality of ignition plugs to be ignited if the engine is in a state other than the idling state.2. The ignition control device of claim 1 , wherein two ignition plugs are provided for each cylinder and the ignition control unit determines whether the engine is in the idling state on the basis of a signal from the sensor and controls two ignition plugs to be simultaneously ignited if the engine is in the idling state claim 1 , and controls one ignition plug to be ignited if the engine is in a state other than the idling state.3. The ignition control device of claim 1 , wherein the sensor is an engine speed sensor for detecting engine speed.4. The ignition control device of claim 1 , wherein the sensor is a throttle opening sensor for detecting opening of a throttle valve that adjusts air intake quantity to the engine.5. An ignition control device for an engine provided with a plurality of ignition plugs for each ...

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Номер записи: 40
04-05-2017 дата публикации

INTAKE DEVICE

Номер: US20170122271A1
Автор: IKEYA Kenichiro, ISHIKAWA Naohiro
Принадлежит:

In an intake device for an internal combustion engine, a difference in the air-fuel ratio between the cylinders is reduced without increasing the lengths of the branch passages. An intake device () for an internal combustion engine () having at least three cylinders () includes: an intake chamber () configured to be connected with an air inlet (); and multiple branch passages () connected at upstream ends () thereof to the intake chamber and connected at downstream ends thereof to intake ports () communicating with the cylinders, respectively, wherein the upstream ends of the branch passages are arranged in a direction of rotation about a predetermined center line X in a same order as an order of ignition of the cylinders. 1. An intake device for an internal combustion engine having first to fourth cylinders arranged along a predetermined cylinder row direction , the intake device comprising:an intake chamber formed in a shape of a rectangular pyramid having a rectangular bottom plate and configured to be connected at a top portion thereof to an air inlet; anda first to fourth branch passages connected at upstream ends thereof to the bottom plate of the intake chamber and connected at downstream ends thereof to intake ports communing with the first to fourth cylinders, respectively,wherein:the upstream ends of the branch passages are arranged in a direction of rotation about a predetermined center line in a same order as an order of ignition of the cylinders;the order of ignition is first, third, fourth, and second cylinder or first, second, fourth, and third cylinder;the center line is positioned on a plane perpendicular to the cylinder row direction to pass through a part between the second and third cylinders;the bottom plate is disposed such that a pair of diagonally positioned corners thereof are arranged in the cylinder row direction about the center line, and a remaining pair of corners are arranged in a first direction that is perpendicular to the cylinder ...

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Номер записи: 41
04-05-2017 дата публикации

IGNITION CONTROL AND SYSTEM FOR AN ENGINE OF AN UNMANNED AERIAL VEHICLE (UAV)

Номер: US20170122282A1
Автор: BUTERS Nicolass Harry, CATHCART Goeffrey Paul
Принадлежит:

The ignition system () of an engine (particularly for a UAV) has a primary (), and a secondary () ignition system to provide redundancy for ‘get you home’ capability should the primary ignition system fail. The secondary ignition provides a lower energy or shorter duration spark than the higher energy or longer duration sparking of the primary ignition system, and is retarded relative to primary sparking. Timing of the secondary sparking can be advanced in the event of primary sparking failure. Fuelling strategy can be shifted from a leaner stratified charge to a richer homogenous charge when relying just on the secondary ignition system for ignition. The secondary ignition system can be of a lower spark energy and/or duration than the primary ignition system, avoiding the cost, complexity and weight of replicating the primary ignition system, and to improve packaging within the engine housing, particularly within the limited payload and space limits of a UAV. 1. An ignition system for a spark ignited engine for a UAV , the ignition system including a primary ignition system and a secondary ignition system , the primary ignition system configured to provide an ignition spark of a first spark energy or spark duration for combustion of a fuel-air mixture during normal operating conditions of the engine , the secondary ignition system configured to provide an ignition spark of a second spark energy or spark duration to ignite the fuel-air mixture in the event that the primary ignition system is inoperative or partially operative , wherein the second spark energy or spark duration capability of the secondary ignition system is less than the respective first spark energy or spark duration capability of the primary ignition system.2. (canceled)3. The ignition system of claim 1 , wherein the primary ignition system includes an inductive coil and the secondary ignition system includes a capacitive discharge coil.4. The ignition system of claim 1 , wherein the primary ...

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Номер записи: 42
31-07-2014 дата публикации

Method for modifying combustion chamber in a reciprocating piston internal combustion engine and resulting engine

Номер: US20140209057A1
Автор: Andrew POURING, Brad BOPP, Manfred Weber, Matthew Hayes, Michael Keller
Принадлежит: Sonex Research Inc

A method for improving combustion in a main combustion chamber of an internal combustion engine and a resulting engine are disclosed. The engine includes a main combustion chamber arranged between a head and a reciprocating piston. A heat retaining element is provided between the head and the main combustion chamber. The heat retaining element is configured to reduce heat transfer from the main combustion chamber into the engine head. A precombustion chamber is provided having a reaction chamber. The reaction chamber is configured to be provided with a secondary charge of air/fuel and a first spark igniter.

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Номер записи: 43
01-09-2022 дата публикации

Ignition coil control system and method

Номер: US20220275782A1
Автор: Dongwon Jung, Jin Oh Song, Kiseon Sim, Soo Hyung Woo, Won Gyu Kim
Принадлежит: Hyundai Motor Co, Kia Corp

An ignition coil control system includes: a first ignition coil; a second ignition coil; a spark plug generating spark discharge by a discharge current generated in the first ignition coil and the second ignition coil; and an ignition controller that controls spark discharge of the electrode by adjusting an amount and duration of the discharge current of the first ignition coil and the second ignition coil based on a step pulse signal including different voltages transmitted from an engine control unit (ECU).

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Номер записи: 44
02-05-2019 дата публикации

MULTI-STRIKE IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20190128232A1
Автор: Barlow Stephen P., MARRS Thomas C.
Принадлежит:

An ignition system for an internal combustion engine has a power source, a transformer having a first primary winding and a second primary winding and a secondary winding, a connector extending from the secondary winding so as to connect with a terminal of a spark plug, and a multi-strike circuit cooperative with the electronic spark timing circuit so as to fire the transformer with multiple strikes between the falling edge and the rising edge. A booster circuit is cooperative at the electronic spark timing circuit so as to collect and store energy from the power source while the electronic spark timing circuit fires the transformer. A delay circuit fires the transformer at a time subsequent to the falling edge and before the rising edge. 1. An ignition system for an internal combustion engine , the ignition system comprising:a power source;a transformer having a first primary winding and a second primary winding and a secondary winding, said first and second primary windings connected to said power source such that said transformer produces an alternating voltage output from said secondary winding of between 1 kHz and 100 kHz and the voltage of at least 20 kV;a connector extending from said secondary winding, said connector adapted to connect with a terminal of a spark plug of the internal combustion engine;electronic spark timing circuit cooperative with said transformer so as to activate deactivate voltage to said first and second primary windings, said electronic spark timing circuit producing a square wave of voltage in which the square wave has a rising edge and a falling edge, said electronic spark timing circuit firing said transformer at or subsequent to said falling edge and before said rising edge; anda multi-strike circuit cooperative with said electronic spark timing circuit so as to fire said transformer with multiple strikes between said falling edge and said rising edge.2. The ignition system of claim 1 , said multi-strike circuit having an ...

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Номер записи: 45
18-05-2017 дата публикации

METHOD FOR OPERATING AN IGNITION SYSTEM AND A CORRESPONDING IGNITION SYSTEM

Номер: US20170138329A1
Автор: Pawlak Thomas, Sinz Wolfgang, Skowronek Tim
Принадлежит:

An ignition system and a method for suppressing an ignition spark discharge at a spark gap at an unsuitable time are provided. The method includes a recognition of a spark breakaway and/or a failed ignition and, in response thereto, by producing a conductive path via an ignition spark at the spark gap at a suitable time. 113-. (canceled)14. A method for operating an ignition system for an internal combustion engine , the ignition system including a voltage generator and a spark gap for producing an ignition spark , the method comprising:recognizing at least one of a spark breakaway and a failed ignition; andproducing, in response thereto, a conductive path via an ignition spark at the spark gap in a suitable working stroke of the internal combustion engine or at a suitable ignition time.15. The method of claim 14 , wherein the suitable working stroke includes a working stroke claim 14 , wherein at least one of the following is satisfied:(i) in which at least one of a combustion and an ejection of fluid from a combustion chamber containing the spark gap occurs; and(ii) in which at least one of an intake and a compression occurs, and in which the residual energy stored in at least one electrical energy storage device of the ignition system is below a specified threshold value.16. The method of claim 14 , wherein the production of the conductive path occurs via the ignition spark at the spark gap following each ignition time of an operating state under consideration claim 14 , or of all operating states.17. The method of claim 14 , wherein the recognizing and producing tasks include the following:ascertaining a secondary-side current,ascertaining whether an exceeding condition is met by ascertaining whether a change in the secondary-side current exceeds a specified first threshold value,ascertaining whether an ignition condition is met by ascertaining whether no ignitable mixture is present in a combustion chamber of an internal combustion engine, andproducing a ...

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Номер записи: 46
18-05-2017 дата публикации

IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE

Номер: US20170138330A1
Автор: Hansen Jason A., Koenen Robert J., Paskov Andrew
Принадлежит: Briggs & Stratton Corporation

An ignition system for an internal combustion engine that utilizes a single primary coil and a single secondary coil to drive a pair of spark plugs. Current flowing in both a first direction and a second direction passes through the primary coil. The current flowing through the primary coil induces corresponding current in the secondary coil, which flows from the secondary coil to one of two spark plugs. Each spark plug is coupled to the secondary coil such that each of the two spark plugs receives current flowing only in a single direction. The current flowing through the ignition system can be from either a power source or created by the rotation of a flywheel having a series of magnet clusters. 1. An ignition system for use with an internal combustion engine , comprising:a power supply;a primary coil positioned to receive either a first current flowing in a first direction or a second current flowing in a second direction from the power supply;a secondary coil positioned such that first and second currents are induced into the secondary coil from the primary coil;a first spark plug coupled to the secondary coil such that only the first current induced in the secondary coil passes to the first spark plug;a second spark plug coupled to the secondary coil such that only the second current induced in the secondary coil passes to the second spark plug; anda controller having a first output and a second output that vary between a high value and a low value, wherein when the first output is at the low value, the first current flows in the first direction through the primary coil and when the second output is at the low value, the second current flows in the second direction through the primary coil.2. The ignition system of wherein the first and second currents flow in opposite directions through the primary coil.3. The ignition system of wherein the primary coil forms part of an H-bridge circuit connecting the power supply to the primary coil.4. The ignition system of ...

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Номер записи: 47
26-05-2016 дата публикации

EXHAUST MANIFOLD-INTEGRATED CYLINDER HEAD WITH WATER JACKET

Номер: US20160146150A1
Автор: KIM SeonYeong, PARK Minkyu, SONG Oh Young
Принадлежит:

An exhaust manifold-integrated cylinder head with a water jacket includes intake ports through which outside air is supplied and exhaust ports through which exhaust gas is discharged. Intake valve holes and exhaust valve holes open the intake ports and the exhaust ports. Spark plug holes are formed on a top side of the cylinder head. A head water jacket is formed within the cylinder head to allow a coolant to flow from one end to another end. The head water jacket includes exhaust port bridge coolant passages formed between the exhaust ports. Lower coolant guides protrude inside the cylinder head so that the coolant flows upward from a bottom side of the cylinder head through the exhaust port bridge coolant passages. 1. An exhaust manifold-integrated cylinder head with a water jacket , the cylinder head comprising:intake ports through which outside air is supplied and exhaust ports through which exhaust gas is discharged;intake valve holes and exhaust valve holes for open the intake ports and the exhaust ports;spark plug holes formed on a top side of the cylinder head; anda head water jacket formed within the cylinder head to allow a coolant to flow from one end to another end,wherein the head water jacket comprising: exhaust port bridge coolant passages formed between the exhaust ports; and lower coolant guides protruding inside the cylinder head so that the coolant flows upward from a bottom side of the cylinder head through the exhaust port bridge coolant passages.2. The exhaust manifold-integrated cylinder head of claim 1 , wherein the head water jacket comprises:upper bridge coolant passages formed between the exhaust valve holes and the spark plug holes; andupper coolant guides protruding and extending downward from the top side of the cylinder head,wherein the upper bridge coolant passages have a thickness decreasing from the top side to the bottom side in a vertical direction.3. The exhaust manifold-integrated cylinder head of claim 2 , wherein the cylinder ...

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Номер записи: 48
04-06-2015 дата публикации

RF POWER AMPLIFICATION AND DISTRIBUTION SYSTEMS, PLASMA IGNITION SYSTEMS, AND METHODS OF OPERATION THEREFOR

Номер: US20150152833A1
Автор: Bokatius Mario M., Mongin Lionel, PIEL PIERRE-MARIE J.
Принадлежит:

An embodiment of a plasma ignition system for an internal combustion engine having up to N cylinders includes a power splitter, N phase shifters, N amplifiers, a power combiner network, and up to N radiation devices. The power splitter divides an input RF signal into N divided RF signals. Each phase shifter applies one of multiple pre-determined phase shifts to one of the N divided RF signals to produce N phase shifted RF signals. The N amplifiers amplify the N phase shifted RF signals to produce N amplified, phase shifted RF signals. The power combiner network combines the N amplified, phase shifted RF signals to produce N output RF signals. Each of the radiation devices receives one of the N output RF signals, and produces a plasma discharge when a power level of the output RF signal is sufficiently high. 1. A system comprising:N amplifiers, wherein each amplifier of the N amplifiers is configured to receive one of N phase shifted radio frequency (RF) signals, and the N amplifiers are further configured to amplify the N phase shifted RF signals to produce N amplified, phase shifted RF signals; anda power combiner network having N input ports and N output ports, wherein each of the N input ports is coupled to an output of one of the N amplifiers, and wherein the power combiner network is configured to combine the N amplified, phase shifted RF signals to produce N output RF signals at the N output ports, wherein relative power levels of the N output RF signals are dependent upon phase differences between the N amplified, phase shifted RF signals.2. The system of claim 1 , further comprising:N phase shifters coupled to inputs of the N amplifiers, wherein each phase shifter is configured to receive one of N input RF signals, and the N phase shifters are further configured to apply pre-determined phase shifts to the N input RF signals in order to produce the N phase shifted RF signals.3. The system of claim 1 , wherein the power combiner network is configured claim 1 , ...

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Номер записи: 49
21-08-2014 дата публикации

ELECTRODES FOR MULTI-POINT IGNITION USING SINGLE OR MULTIPLE TRANSIENT PLASMA DISCHARGES

Номер: US20140230790A1
Автор: Gundersen Martin A., Kuthi Andras, Sanders Jason M., Singleton Daniel R.
Принадлежит: UNIVERSITY OF SOUTHERN CALIFORNIA

A device for providing ignition of a fuel-air mixture using a transient plasma discharge is provided. The device includes an anode coupled to receive a voltage; and a cathode disposed in proximity to the anode and coupled to a ground, wherein at least one of the anode and the cathode includes a protrusion that enhances an electric field formed between the anode and the cathode, the protrusion forming a sharp edge defining a plurality of points, each point forming a path of shortest distance between the anode and the cathode. 1. A device for providing ignition of a fuel-air mixture using a transient plasma discharge , the device comprising:an anode configured to receive a voltage; anda cathode disposed in proximity to the anode and configured to be coupled to a ground, wherein at least one of the anode and the cathode comprises a protrusion that enhances an electric field formed between the anode and the cathode, and wherein the protrusion forms a sharp edge defining a plurality of points, each point forming a path of shortest distance between the anode and the cathode.2. The device of claim 1 , wherein the anode is disposed in a longitudinal axis claim 1 , the cathode is disposed around the anode claim 1 , and the protrusion comprises a sharp edge formed in the anode.3. The device of claim 2 , wherein the anode comprises a disc shape perpendicular to the longitudinal axis claim 2 , the sharp edge is the perimeter of the disc claim 2 , and the cathode is axi-symmetrically disposed around the anode.4. The device of claim 2 , wherein the disc has a diameter matched to an inner diameter of the cathode.5. The device of claim 2 , wherein the protrusion is one of a plurality of anode protrusions formed symmetrically around the longitudinal axis.6. The device of claim 1 , wherein the anode is disposed in a longitudinal axis claim 1 , the cathode is disposed around the anode claim 1 , and the protrusion is one of a plurality of cathode protrusions formed symmetrically around ...

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Номер записи: 50
28-08-2014 дата публикации

RIM FIRE SPARKING GASKET

Номер: US20140238342A1
Автор: Agajanian Chris, Bevan Brian, Bland Ian
Принадлежит: AGAJANIAN PERFORMANCE PRODUCTS

The sparking gasket amalgamates two traditional parts of the internal combustion engine into one unit by replacing the spark plug with electrode circuitry embedded into the gasket material. This system provides reduced hydrocarbon emissions by improving combustion thus giving a cleaner burn with increased fuel economy and improved engine performance. The new materials being used have greatly increased gasket life by reducing material deterioration and insulation breakdown that lead to engine failure. Further improvements in electrode design, materials and positioning have led to improved efficiency gains. In this design the electrode circuitry is fused between two material wafers thus encapsulating it in one solid bonded unit. 1. An apparatus comprising:a gasket having a plurality of openings therein,a conductor pattern formed within the gasket and defining a plurality of gapped electrodes about an interior of the gasket;a ground conductor formed within the gasket and extending partially into at least one of the openings.2. The apparatus of wherein the gasket comprises a plurality of layers.3. The apparatus of wherein the gasket comprises an upper and a lower layer comprising a compressible insulative material.4. The apparatus of wherein the gasket comprises first and second inner layers disposed between the upper and lower layer and surrounding the conductor pattern.5. The apparatus of wherein the plurality of gapped electrodes comprises four electrodes.6. The apparatus of wherein the ground conductor forms a tip of one of the gapped electrodes at one end and extends partially into at least one of the openings at another end.7. The apparatus of wherein the upper and lower layer comprise at least one of a ceramic claim 3 , metallurgical claim 3 , polymeric claim 3 , composite material claim 3 , and ceramic impregnated Teflon.8. The apparatus of wherein the first and second inner layers comprise at least one of resin material claim 4 , phenol resin claim 4 , and ...

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Номер записи: 51
07-06-2018 дата публикации

IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE

Номер: US20180156179A1
Автор: Hansen Jason A., Koenen Robert J., Paskov Andrew
Принадлежит: Briggs & Stratton Corporation

An ignition system for an internal combustion engine that utilizes a single primary coil and a single secondary coil to drive a pair of spark plugs. Current flowing in both a first direction and a second direction passes through the primary coil. The current flowing through the primary coil induces corresponding current in the secondary coil, which flows from the secondary coil to one of two spark plugs. Each spark plug is coupled to the secondary coil such that each of the two spark plugs receives current flowing only in a single direction. The current flowing through the ignition system can be from either a power source or created by the rotation of a flywheel having a series of magnet clusters. 1. An ignition system for use with an internal combustion engine , comprising:a power supply;a primary coil having a center tap connected to the power supply and configured to receive one of a first current flowing in a first portion of the primary coil in a first direction and a second current flowing in a second portion of the primary coil in a second direction;a secondary coil positioned such that first and second currents are induced into the secondary coil from the primary coil;a first spark plug coupled to the secondary coil such that only the first current induced in the secondary coil passes to the first spark plug;a second spark plug coupled to the secondary coil such that only the second current induced in the secondary coil passes to the second spark plug; anda controller having a first output and a second output, wherein when the first output is active, the first current flows in the first direction through the primary coil and when the second output is active, the second current flows in the second direction through the primary coil.2. The ignition system of wherein the first output and the second output vary between a digital high value and a digital low value.3. The ignition system of wherein the first output and the second output are active when the first ...

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Номер записи: 52
07-06-2018 дата публикации

IGNITION CONTROL SYSTEM

Номер: US20180156182A1
Автор: Funato lppei, Hattori Kenji
Принадлежит:

In an ignition control system, a primary current control unit performs discharge generation control one or more times during a single combustion cycle. The discharge generation control allows a spark plug to generate a discharge spark. A parameter calculating unit successively calculates a parameter correlated with energy of a discharge spark. An energy density calculating unit successively calculates energy density that is energy per unit length of the discharge spark. When the energy density is greater than a predetermined value during a predetermined period after a primary current is interrupted during a single combustion cycle, an integrated value calculating unit calculates an integrated value by integrating the parameter during the predetermined period. The primary current control unit performs the discharge generation control again when the integrated value calculated by the integrated value calculating unit is less than a predetermined determination threshold. 1. An ignition control system for an internal combustion engine including a spark plug that generates a discharge spark between a pair of discharge electrodes for igniting a combustible air-fuel mixture in a cylinder of the internal combustion engine , an ignition coil that includes a primary coil and a secondary coil and applies a secondary voltage to the spark plug by the secondary coil , a voltage value detecting unit that detects a voltage value of at least either of a primary voltage applied to the primary coil and the secondary voltage applied to the spark plug , and a secondary current detecting unit that detects a secondary current flowing to the spark plug , the ignition control system comprising:a primary current control unit that performs discharge generation control one or more times during a single combustion cycle, the discharge generation control allowing the spark plug to generate the discharge spark by a primary current to the primary coil being interrupted after conduction of the ...

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Номер записи: 53
08-06-2017 дата публикации

VEHICLE BODY

Номер: US20170159517A1
Автор: MORI Hidemichi
Принадлежит: HONDA MOTOR CO., LTD.

An internal combustion engine with a reduced size while securing a sufficient amount of lubricating oil for rocker shafts in the internal combustion engine. A cam holder formed in a cylinder head extends from a rear wall portion of the cylinder head toward the attachment hole, and an intake-side downstream rocker shaft oil supply passage formed in a cross shape by causing two linear portions to intersect each other is formed inside the cam holder. In the intake-side downstream rocker shaft oil supply passage, one of the linear portions communicates with a left intake-side support hole located on a left side and configured to support a left intake-side rocker shaft, while the other one of the linear portions communicates with a right intake-side support hole located on a right side and configured to support a right intake-side rocker shaft. 1. An internal combustion engine comprising:a plurality of valves provided in a valve chamber formed in a cylinder head;a cam holder provided in the valve chamber;a camshaft rotatably supported by the cam holder and having cams configured to open and close the plurality of valves via rocker arms;an attachment hole for an ignition plug or a fuel injection valve, the attachment hole formed to communicate with a substantial center of a combustion chamber; androcker shafts configured to support the rocker arms, the rocker shafts being parallel to a direction of an axis of the camshaft and arranged in a distributed manner on one side and another side of the attachment hole, wherein:the cam holder extends from a wall portion of the cylinder head toward the attachment hole;a downstream rocker shaft oil supply passage formed in a cross shape by causing two linear portions to intersect each other is formed inside the cam holder; andin the downstream rocker shaft oil supply passage, one of the linear portions extends toward the one side of the attachment hole and communicates with a support hole located on the one side of the attachment ...

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Номер записи: 54
08-06-2017 дата публикации

FUEL INJECTOR INSERT

Номер: US20170159603A1
Автор: Di Pietro Aaron
Принадлежит:

An insert for a cylinder head of an internal combustion engine that has a bore for receiving a fuel injector to deliver fuel through an injector nozzle into a combustion chamber. The insert comprises a generally tubular body having a longitudinally oriented passageway therethrough and receivable within the bore in the cylinder head. The generally tubular body has an inner end and an outer end, with the inner end in proximity to the combustion chamber when said insert is received within the bore. The passageway is tapered such that its diameter increases from the inner end toward the outer end. The longitudinal passageway is dimensioned to sealingly receive the nozzle of the fuel injector when the fuel injector is received within the bore. The insert limits blow-by between the insert and the nozzle of the fuel injector during operation of the internal combustion engine. 1. An insert for a cylinder head of an internal combustion engine , the cylinder head including a bore for receiving a fuel injector to deliver fuel through an injector nozzle into a combustion chamber of the engine , the insert comprising:a generally tubular body having a longitudinally oriented passageway therethrough and receivable within the bore in the cylinder head, the generally tubular body having an inner end and an outer end, said inner end in proximity to the combustion chamber when said insert is received within the bore, said passageway tapered such that the diameter of said passageway increases from said inner end toward said outer end, the longitudinal passageway dimensioned to sealingly receive the nozzle of the fuel injector when the fuel injector is received within the bore in the cylinder head, the insert limiting blow-by between the insert and the nozzle of the fuel injector during operation of the internal combustion engine.2. The insert as claimed in wherein said longitudinally oriented passageway is circular in cross section.3. The insert as claimed in wherein the diameter of ...

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Номер записи: 55
18-06-2015 дата публикации

REPETITIVE IGNITION SYSTEM FOR ENHANCED COMBUSTION

Номер: US20150167623A1
Автор: Gundersen Martin A., Kuthi Andras, Sanders Jason M., Singleton Daniel
Принадлежит: TRANSIENT PLASMA SYSTEMS, INC.

A system and method for providing multiple fast rising pulses to improve performance efficiency. In one approach, multiple fast rising pulse power is employed to improve fuel efficiency and power of an engine. The system and method can involve a transient plasma plug assembly intended to replace a traditional spark plug. Alternatively, an approach involving a pulse generator and a high voltage pulse carrying ignition cable is contemplated. 1. A method for igniting air-fuel mixtures , comprising:generating multiple fast rising voltage pulses with a transient plasma ignition source;creating a plurality of plasma streamers;coupling the plasma streamers with an air-fuel mixture to create reactive species enhancing efficiency of combination chemistry.2. A system for igniting air-fuel mixtures of an engine , comprising:a generator of multiple fast rising pulses, the generator creating a plurality of plasma streamers;an air-fuel mixture; anda circuit to effect a combination of the plurality of plasma streamers and the air-fuel mixture and creation of a reaction species enhancing efficiency of combustion chemistry of the engine.3. The system of claim 2 , further comprising a transient plasma ignition source that generates the multiple fast rising pulses which creates the plasma streamers.4. The system of claim 3 , wherein the transient plasma ignition source includes built-in circuitry.5. The system of claim 4 , wherein the built-in circuitry includes a diode.6. The system of claim 4 , wherein the built-in circuitry includes a plurality of capacitors.7. The system of claim 2 , further comprising a compression line circuit that generates the fast rising voltage pulses cooperating to create the plasma streamers.8. The system of claim 7 , further comprising an ignition cable configured to transmit the fast rising voltage pulses generated by the compression line circuit.9. The system of claim 8 , wherein the ignition cable carries forward and return current such that peak ...

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Номер записи: 56
24-06-2021 дата публикации

SPARK IGNITION ENGINE

Номер: US20210189994A1
Автор: ISOSHIMA Hiroaki, Kawasaki Takeshi, Yamada Yuichiro
Принадлежит:

A cylindrical part capable of supporting an ignition-coil-integrated plug cap is formed on a head cover so as to correspond to a plug hole of a cylinder head. The cylindrical part is formed by fitting and fixing a pipe material to a mounting hole part formed in the head cover, the mounting hole part facing the plug hole. 1. A spark ignition engine comprising a cylindrical part capable of supporting a plug cap connected to an ignition coil , the cylindrical part being formed on a head cover so as to correspond to a plug hole of a cylinder head.2. The spark ignition engine according to claim 1 , wherein the cylindrical part is formed by fitting and fixing a pipe material to a mounting hole part formed in the head cover claim 1 , the mounting hole part facing the plug hole.3. The spark ignition engine according to claim 2 , wherein the pipe material is inserted into the mounting hole part by press fitting.4. The spark ignition engine according to claim 1 , further comprising a fixing unit that prevents the plug cap supported by the cylindrical part from being detached from the cylindrical part claim 1 , the fixing unit being provided on an outer wall of a valve operating mechanism housing part of the head cover.5. The spark ignition engine according to claim 2 , further comprising a fixing unit that prevents the plug cap supported by the cylindrical part from being detached from the cylindrical part claim 2 , the fixing unit being provided on an outer wall of a valve operating mechanism housing part of the head cover.6. The spark ignition engine according to claim 3 , further comprising a fixing unit that prevents the plug cap supported by the cylindrical part from being detached from the cylindrical part claim 3 , the fixing unit being provided on an outer wall of a valve operating mechanism housing part of the head cover.7. The spark ignition engine according to claim 4 , whereinthe plug cap is an ignition-coil-integrated plug cap having an ignition coil, andthe ...

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Номер записи: 57
15-06-2017 дата публикации

INTERNAL COMBUSTION ENGINE

Номер: US20170167360A1
Автор: Abe Hiroaki, Fujikawa Tatsuya, INOUE Atsushi, Kaminaga Takashi, NAGANO Takaaki, Nagatsu Kazuhiro, NAKAHARA Yasushi, Wasada Mitsunori, Yamamoto Tsuyoshi, Youso Takashi
Принадлежит: MAZDA MOTOR CORPORATION

Injection of the fuel by the injector creates a gas flow in the combustion chamber. The gas expands in a radial fashion from an axis of a cylinder toward a radial outside of the cylinder, and then flows from the radial outside along the cylinder head bottom face toward the axis of the cylinder. The spark plug has a gap positioned away from the axis of the cylinder toward the radial outside of the cylinder at a predetermined distance, and placed radially inwardly from a position opposite a rim of an opening of the cavity A side electrode extends to be oriented in a direction perpendicular to the flow of the gas along the cylinder head bottom face. The gap has a center positioned near the cylinder head bottom face, and closer to an interior of a combustion chamber than to the cylinder head bottom face. 1. An internal combustion engine comprising:a piston inserted into a cylinder and having a cavity on a top face, of the piston, defining the combustion chamber, the cavity being formed symmetrically with respect to an axis of the cylinder;an injector provided to a cylinder head and aligned with the axis, of the cylinder, on a cylinder head bottom face defining the combustion chamber, the injector being configured to inject fuel into the cavity; anda spark plug including a center electrode and side electrode, the spark plug being configured to ignite air-fuel mixture in the combustion chamber, whereinthe injection of the fuel by the injector creates a flow of gas in the combustion chamber, the gas expanding in a radial fashion from the axis of the cylinder along a surface of the cavity toward a radial outside of the cylinder, and then flowing from the radial outside of the cylinder along the cylinder head bottom face of the cylinder head toward the axis of the cylinder,the spark plug has a gap between the center electrode and the side electrode so that the gap is positioned in the flow of the gas from the radial outside of the cylinder along the cylinder head bottom face ...

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Номер записи: 58
30-05-2019 дата публикации

METHOD AND APPARATUS TO CONTROL AN IGNITION SYSTEM

Номер: US20190162155A1
Автор: Frank Lorenz, Loenarz Marco
Принадлежит:

An ignition system includes a controller which controls two stages—to provide current to a spark plug. The stages include a first transformer including a first primary winding and a first secondary winding and a second transformer including a second primary winding and a second secondary winding. A switch is electrically connected between a supply high side and the high side of the first primary winding. A second switch is electrically connected between the first primary winding and the power supply low side supply. A third switch is connected between the junction of the switch and high side end of the first inductor and a point between the low side of the second primary winding and low side supply. A fourth switch is located between the low side of the second primary winding and the point. A fifth switch is located between the point and low side supply. 17-. (canceled)8. A multi-charge ignition system controlled by a spark plug control unit to provide a current to a spark plug , the multi-charge ignition system comprising:at least two coil stages controlled by the spark plug control unit to successively energise and de-energise the at least two coil stages to provide the current to the spark plug, the at least two coil stages comprising a first transformer including a first primary winding inductively coupled to a first secondary winding and a second transformer including a second primary winding inductively coupled to a second secondary winding;a first switch electrically connected between a power supply high side and a high side of the first primary winding;a second switch electrically connected between a low side of the first primary winding and a power supply low side or ground;a third switch connected between a junction of the first switch and the high side of the first primary winding and a point between a low side of the second primary winding and the power supply low side or ground;a fourth switch located between the low side of the second primary winding ...

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Номер записи: 59
21-05-2020 дата публикации

Combustion chamber structure for engine

Номер: US20200158007A1
Автор: Atsushi Inoue, Futa NISHI, Kota Matsumoto, Masaki Fukuma, Michiharu Kawano, Satoshi Imamura, Yasushi Nakahara, Yuya HONDA
Принадлежит: Mazda Motor Corp

A combustion chamber structure for an engine includes a combustion chamber where SI combustion by spark ignition and CI combustion by self-ignition are conducted. A crown surface includes a cavity recessed to have a bowl-shape; a pair of first raised portions having a mound-shape along a pent roof shape; and a second raised portion provided to protrude at a position orthogonal to a ridge extending direction of the pair of first raised portions. With a height of the first raised portion relative to a height position of a deepest portion of the cavity being represented as H 1 and a height of the second raised portion being represented as H 2 , H 1 /H 2 as a ratio of the height H 1 of the first raised portion to the height H 2 of the second raised portion is set to be in a range of 1.92 or more and 2.75 or less.

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Номер записи: 60
25-06-2015 дата публикации

SPARK PLUG

Номер: US20150176520A1
Автор: Berger Olaf, Schaefer Friedrich
Принадлежит: Caterpillar Energy Solutions GmbH

A spark plug may include a shell surrounding a lower part of an insulator. The shell may be provided with a tool engaging portion, a seal face configured to contact a corresponding seal of a cylinder head of an internal combustion engine, a cylinder engaging threaded portion having a thread diameter (D) configured to screw the spark plug in a threaded bore of the cylinder head, and an intermediate portion extending between the shoulder and the cylinder engaging threaded portion. The intermediate portion may have a length (L), wherein: 0.20<=L/D<=0.80 and Lis the length and D is the thread diameter. 1. A spark plug , comprising:a connector;a center electrode connected to the connector;an insulator surrounding the center electrode;{'sub': 1', '1', '1, 'a shell surrounding a lower part of the insulator, the shell being provided with a tool engaging portion, a seal face configured to contact a corresponding seal of a cylinder head of an internal combustion engine, a cylinder engaging threaded portion having a thread diameter (D) configured to screw the spark plug in a threaded bore of the cylinder head, and an intermediate portion extending between the seal face and the cylinder engaging threaded portion, wherein the intermediate portion has a length (L), wherein: 0.20<=L/D<=0.80 and Lis the length and D is the thread diameter; and'}at least one ground electrode disposed at an end of the cylinder engaging threaded portion.2. The spark plug of claim 1 , wherein: 0.20<=L/D<=0.50 and Lis the length and D is the thread diameter.3. The spark plug of claim 1 , the intermediate portion having an outer diameter (d) equal to or smaller than the external diameter (D) of the cylinder engaging threaded portion.4. The spark plug of claim 1 , the intermediate portion having an outer diameter (d) greater than the external diameter (D) of the cylinder engaging threaded portion.5. The spark plug of claim 1 , wherein the spark plug is designed as a chamber spark plug.6. The spark plug of ...

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Номер записи: 61
25-06-2015 дата публикации

METHOD AND APPARATUS FOR COOLING A CYLINDER HEAD

Номер: US20150176521A1
Автор: Sahadan Mohd Suffian, Taylor Gordon
Принадлежит:

A water jacket for a cylinder head of an internal combustion engine includes a coolant chamber arranged to permit the flow of coolant within the water jacket and a coolant conduit positioned to permit the flow of coolant proximate to a recess for receiving an exhaust valve mounted to the cylinder head. The coolant conduit is in fluid communication with the coolant chamber, and the coolant conduit is shaped as a complex curve. A water jacket includes a pair of apertures arranged to receive a spark plug and a fuel injector. The apertures are separated by a separating member, and a coolant chamber is arranged to permit the flow of coolant about the apertures. The separating member includes a coolant channel in fluid communication with the coolant chamber so as to permit the flow of coolant between the apertures. 1. A water jacket for a cylinder head of an internal combustion engine , the water jacket comprising:a coolant chamber arranged to permit a flow of a coolant within a water jacket; anda coolant conduit positioned to permit the flow of the coolant proximate to a recess for receiving an exhaust valve mounted to a cylinder head, said coolant conduit in fluid communication with the coolant chamber, wherein said coolant conduit is shaped as a complex curve.2. The water jacket according to claim 1 , wherein each curve within the complex curve has a finite radius.3. The water jacket according to claim 1 , wherein the complex curve is one or a combination of a double reverse curve claim 1 , a spline or a dual radius curve.4. The water jacket according to claim 3 , wherein the complex curve is a double radius curve having the relationship Θ/11 Подробнее

Номер записи: 62
25-06-2015 дата публикации

Antenna structure and internal combustion engine

Номер: US20150181687A1
Автор: Ryoji Tsuruoka, Yuji Ikeda
Принадлежит: Imagineering Inc

The antenna structure has a high frequency wave transmission line that transmits a high frequency wave and an emission antenna part for emitting the high frequency wave supplied via the high frequency wave transmission line. The emission antenna part includes a metal antenna having a rod-like shape and a ceramic layer that covers at least a part of the metal antenna.

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Номер записи: 63
28-06-2018 дата публикации

IGNITION APPARATUS

Номер: US20180180014A1
Автор: DOI Kaori, Hayashi Naoto, KYOUDA Kenta, NAKAYAMA Satoru, TERADA Kenechiyo, TORIYAMA Makoto
Принадлежит:

An ignition apparatus inputs energy during a predetermined energy input period after the interruption of a primary electric current by an ignition switch and a discharge of an ignition plug caused by a secondary electric current. Moreover, the ignition apparatus includes a blow-off detection unit that detects, during the energy input period IGW after the start of the discharge by the ignition plug, occurrence of blow-off of the discharge. When the secondary electric current I drops below a blow-off detection electric current threshold value Ibo at a time instant tbo in a “second region” where it is impossible to perform a re-discharge after blow-off, the blow-off detection unit determines that blow-off has occurred and the ignition apparatus stops the energy input from an energy input unit to an ignition coil. By preventing unnecessary energy input, it is possible to suppress unnecessary electric power consumption and wear of electrodes of the ignition plug. 1. An ignition apparatus that controls operation of an ignition plug for igniting an air-fuel mixture in a combustion chamber of an internal combustion engine , the ignition apparatus comprising:an ignition coil that includes a primary coil in which a primary electric current supplied from a DC power supply flows, and a secondary coil which is connected to an electrode of the ignition plug and in which a secondary voltage is generated by supply and interruption of the primary electric current and thus a secondary electric current flows;an ignition switch that is connected to a ground side of the primary coil and switches the supply and interruption of the primary electric current according to an ignition signal, the ground side being an opposite side of the primary coil to the DC power supply;an energy input means capable of inputting energy during a predetermined energy input period after the interruption of the primary electric current by the ignition switch and a discharge of the ignition plug caused by the ...

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Номер записи: 64
09-07-2015 дата публикации

IGNITION APPARATUS FOR INTERNAL COMBUSTION ENGINE

Номер: US20150192100A1
Автор: KIMURA Noritaka, Kurahashi Makoto
Принадлежит:

An ignition apparatus for an internal combustion engine, comprising at least one ignition plug, an actuating circuit provided with first and second coil pairs corresponding to one ignition plug for generating spark discharge in the at least one ignition plug. First and second ignition signals respectively supplied to the first and second coil pair are generated so that a first discharge period and a second discharge period partially overlap with each other during an overlap discharge period, the overlap discharge period is made equal to a set overlap period, and a start timing of the first discharge period is prior to a start timing of the second discharge period. The first and second discharge periods are time periods of electric discharges generated by the first and second coil pairs. The set overlap period is set according to the first discharge period, a temporary cut threshold value, and a discharge start current value at the start timing of the first discharge period. The temporary cut threshold value is a minimum value of the discharge current value at which no temporary cut of the discharge current in the ignition plug occurs. 1. An ignition apparatus for an internal combustion engine , comprising at least one ignition plug , an actuating circuit provided with first and second coil pairs corresponding to one ignition plug for generating spark discharge in said at least one ignition plug , and control means for generating first and second ignition signals supplied respectively to said first and second coil pairs , said ignition apparatus being characterized in that ,said control means generates the first and second ignition signals so that a first discharge period and a second discharge period partially overlap with each other during an overlap discharge period, the overlap discharge period is made equal to a set overlap period, and a start timing of the first discharge period is prior to a start timing of the second discharge period,wherein the first ...

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Номер записи: 65
07-07-2016 дата публикации

LASER IGNITION SYSTEM FOR GASEOUS FUEL-POWERED ENGINE

Номер: US20160195057A1
Автор: Ginter David M., Kim Arnold M., SINGH Jaswinder, Svensson Kenth I.
Принадлежит: CATERPILLAR INC.

A gaseous fuel-powered engine includes a fuel injector configured to selectively inject a plurality of gas plumes into the combustion chamber, and a laser ignition system configured to selectively ignite the gas plumes within the combustion chamber. The laser ignition system includes a laser source configured to generate at least one laser beam, and a beam splitter for splitting the laser beam into a plurality of partial laser beams. A focusing unit is provided to direct each partial laser beam to corresponding focal points in the gas plumes within the combustion chamber. A controller is configured to determine an operating state of the gaseous fuel-powered engine, regulate an intensity of each partial laser beam, and operate the focusing unit for directing the partial laser beams within the combustion chamber to ignite the gas plumes at the focal points during injection of the gas plumes within the combustion chamber. 1a fuel injector provided on the engine head to selectively inject a plurality of gas plumes into the combustion chamber; and a laser source configured to generate at least one laser beam;', 'a beam splitter optically associated with the laser source for splitting the laser beam into a plurality of partial laser beams;', 'a focusing unit optically associated with the beam splitter and the combustion chamber, the focusing unit being configured to direct each partial laser beam of the plurality of partial laser beams to corresponding focal points in the plurality of gas plumes within the combustion chamber; and', determine an operating state of the gaseous fuel-powered engine;', 'regulate, based on the operating state of the gaseous fuel-powered engine, an intensity of each partial laser beam of the plurality of partial laser beams; and', 'operate, based on the operating state of the gaseous fuel-powered engine, the focusing unit for directing the plurality of partial laser beams to move the focal points in the plurality of gas plumes within the ...

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Номер записи: 66
22-07-2021 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20210222664A1
Автор: OHATA Eiichirou
Принадлежит: Hitachi Automotive Systems, Ltd.

Ignitability of a fuel by a spark plug is improved while an increase in the number of ignition coils is suppressed. A control device for an internal combustion engine includes an ignition control unit which controls energization of an ignition coil and an ignition coil which each provide electric energy to a spark plug which discharges in a cylinder of an internal combustion engine to ignite a fuel, and a discharge amount detection unit which detects an inter-electrode voltage of the spark plug. After the ignition control unit discharges the spark plug using the electric energy of the ignition coil , the ignition control unit estimates a voltage which is supply-able from the ignition coil to the spark plug, and controls energization of the ignition coil so as to supply the electric energy of the second ignition coil to the spark plug when a difference d between the estimated supply-able voltage and a required voltage based on the voltage detected by the discharge amount detection unit is equal to or less than a predetermined threshold value. 1. A control device for an internal combustion engine , comprising:an ignition control unit which controls energization of a first ignition coil and a second ignition coil which each provide electric energy to a spark plug which discharges in a cylinder of an internal combustion engine to ignite a fuel; anda discharge amount detection unit which detects a voltage between electrodes of the spark plug,wherein after the ignition control unit discharges the spark plug using the electric energy of the first ignition coil, the ignition control unit estimates a voltage which is supply-able from the first ignition coil to the spark plug, and controls energization of the second ignition coil so as to supply the electric energy of the second ignition coil to the spark plug when a difference between the estimated supply-able voltage and a required voltage for maintaining discharge of the spark plug based on the voltage detected by the ...

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Номер записи: 67
14-07-2016 дата публикации

COMBUSTION CHAMBER STRUCTURE FOR ENGINE

Номер: US20160201596A1
Автор: NAGANO Takaaki, Yamakawa Masahisa, Youso Takashi
Принадлежит:

A combustion chamber structure for an engine, wherein the structure includes a piston formed with a downward dented cavity at a central part of an upper surface thereof, a fuel injector provided above the piston and in an extension line of a central axis of the piston, and for injecting fuel toward the cavity of the piston, and ignition plugs provided above the cavity and separated from the fuel injector in radial directions of the piston. A radius of the cavity, a depth of the cavity, and each of positions of the ignition plugs are designed so that a distance by which a mixture gas containing the fuel travels from a fuel injection start timing of the fuel injector to an ignition timing of the ignition plug becomes equal to or longer than a length of a path through which the injected fuel reaches each ignition plug via the cavity. 1. A combustion chamber structure for an engine , the engine injecting fuel in a latter half of a compression stroke and igniting the fuel after a top dead center of the compression stroke within a predetermined engine operating range , the combustion chamber structure comprising:a piston formed with a downward dented cavity at a central part of an upper surface thereof;a fuel injector provided above the piston and in an extension line of a central axis of the piston, and for injecting the fuel toward the cavity of the piston; andat least one ignition plug provided above the cavity of the piston and separated from the fuel injector in radial directions of the piston,wherein a radius of the cavity, a depth of the cavity, and each of positions of the at least one ignition plug are designed to have a fuel spray traveling distance that is equal to or longer than a fuel spray traveling path length, the fuel spray traveling distance being a distance by which mixture gas containing the fuel travels from a fuel injection start timing of the fuel injector to an ignition timing of each ignition plug, the fuel spray traveling path length being a ...

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Номер записи: 68
12-07-2018 дата публикации

ENGINE CONTROL DEVICE

Номер: US20180195485A1
Автор: AKAGI Yoshihiko, SEIMIYA Masashi
Принадлежит: Hitachi Automotive Systems, Ltd.

Provided is an engine control device which can suppress a shortage of output terminals of the control unit and an increase of costs even in a multiple-cylinder internal combustion engine equipped with ignition energy supply units of two systems. An engine control device controls a multiple-cylinder engine in which ignition energy supply units of two systems are provided for every cylinder. A signal is transmitted through a common signal line to a plurality of ignition energy supply units of one system among the ignition energy supply units of the two systems to control the ignition energy supply units of the one system. 1. An engine control device which controls a multiple-cylinder engine in which ignition energy supply units of two systems are provided for every cylinder ,wherein a signal is transmitted through a common signal line to a plurality of ignition energy supply units of one system among the ignition energy supply units of the two systems to control the ignition energy supply units of the one system.2. The engine control device according to claim 1 ,wherein the ignition energy supply units of the two systems are configured to overlap a discharge of the ignition energy supply units of the one system and a discharge of the ignition energy supply units of the other system to be output.3. The engine control device according to claim 1 ,wherein the plurality of ignition energy supply units having received a signal through the common signal line determine an ignition cylinder using an ignition signal of the ignition energy supply units of the other system.4. The engine control device according to claim 3 ,wherein the ignition signal of the ignition energy supply units of the other system to be used for determining the ignition cylinder is an ignition signal of the ignition energy supply units of the other system belonging to the same cylinder as that of the ignition energy supply units of the one system.5. The engine control device according to claim 3 ,wherein ...

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Номер записи: 69
30-07-2015 дата публикации

MULTI-STRIKE ENGINE IGNITION TECHNIQUES

Номер: US20150211474A1
Автор: Eckardt Adam, Ganapathy Lakshmi, Goble, JR. Monroe, Remesz Adam
Принадлежит:

An optimized multi-strike ignition technique for an internal combustion engine includes, in one exemplary implementation, determining (i) a number of ignition coil re-strikes, (ii) a re-dwell percentage for ignition coil re-strikes, and (iii) a time between ignition coil re-strikes based on total exhaust gas recirculation (EGR) and engine speed. The optimized multi-strike engine ignition technique also includes controlling multi-strike engine ignition by controlling a sparking system of the engine based on the determined multi-strike parameters. 1. A method , comprising:determining, at a controller for an internal combustion engine, the controller having one or more processors, an amount of exhaust gas recirculation (EGR) for the engine;determining, at the controller, a speed of the engine;determining, at the controller, a number of re-strikes of ignition coils per cylinder combustion event for multi-strike engine ignition based on the amount of EGR and the engine speed;determining, at the controller, a re-dwell percentage for ignition coil re-strikes based on the amount of EGR and the engine speed;determining, at the controller, a timing between the ignition coil re-strikes based on the amount of EGR and the engine speed; andcontrolling, by the controller, multi-strike engine ignition by controlling a sparking system of the engine based on (i) the number of ignition coil re-strikes, (ii) the re-dwell percentage, and (iii) the timing between the ignition coil re-strikes.2. The method of claim 1 , wherein the number of ignition coil re-strikes is between zero and five claim 1 , inclusive.3. The method of claim 1 , wherein the number of ignition coil re-strikes claim 1 , the re-dwell percentage claim 1 , and the timing between the ignition coil re-strikes are determined based on the amount of EGR and the engine speed using three-dimensional look-up tables.4. The method of claim 3 , wherein different three-dimensional look-up tables are used to determine (i) the number ...

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Номер записи: 70
27-06-2019 дата публикации

FUEL INJECTOR HAVING PARTICULATE-BLOCKING PERFORATION ARRAY

Номер: US20190195181A1
Автор: Brown Aaron Michael, PICKELL Michael Edward
Принадлежит: CATERPILLAR INC.

An engine head assembly includes a plurality of fuel injectors each positioned within a fuel injector bore in an engine head, and fluidly coupled with a fluid conduit. Each fuel injector includes a valve assembly within a fuel injector case such that an interior fluid space is formed between the fuel injector case and the valve assembly. The fuel injector case includes an elongate body having a particulate-blocking perforation array formed therein, and that is structured to block particulates in fuel entering the fuel injector from the fluid conduit. 1. A fuel injector case comprising:an elongate body defining a longitudinal axis and including a first axial end and a second axial end, and the elongate body further including an inner peripheral surface and an outer peripheral surface each extending between the first axial end and the second axial end;the elongate body further having a nozzle end segment that includes the first axial end, a second end segment that includes the second axial end, and a filtration segment positioned axially between the nozzle end segment and the second end segment; andthe filtration segment having a particulate-blocking perforation array with a circumferential distribution of perforations and an axial distribution of perforations in the elongate body, and forming a fluid flow path from the outer peripheral surface to the inner peripheral surface to fluidly connect an interior fluid space within the elongate body to a fluid conduit formed between the elongate body and an engine head.2. The fuel injector case of further including an annular groove extending around the elongate body at a first location axially between the filtration segment and the nozzle end segment claim 1 , and an annular shoulder extending around the elongate body at a second location axially between the filtration segment and the second end segment.3. The fuel injector case of further including a second annular groove extending around the elongate body at a third ...

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Номер записи: 71
29-07-2021 дата публикации

Control apparatus for compression-ignition type engine

Номер: US20210231077A1
Автор: Atsushi Inoue, Keiji Maruyama, Keita Arai, Kota Matsumoto, Masanari Sueoka, Ryohei Ono, Takuya Ohura, Tatsuhiro Tokunaga, Tomohiro Nishida, Tomonori Urushihara, Toru Miyamoto, Yodai YAMAGUCHI, Yuji Harada, Yusuke Kawai
Принадлежит: Mazda Motor Corp

An engine apparatus includes an ignition control section and an injection control section. When the partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Energy of the preceding ignition is set to be lower when a swirl flow is gentle than when the swirl flow is intense.

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Номер записи: 72
29-07-2021 дата публикации

CONTROL APPARATUS FOR COMPRESSION-IGNITION TYPE ENGINE

Номер: US20210231078A1
Автор: ARAI Keita, Harada Yuji, INOUE Atsushi, KAWAI Yusuke, Maruyama Keiji, Matsumoto Kota, MIYAMOTO Toru, Nishida Tomohiro, Ohura Takuya, ONO Ryohei, Sueoka Masanari, TOKUNAGA Tatsuhiro, Urushihara Tomonori, YAMAGUCHI Yodai
Принадлежит:

Provided is an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Ignition timing of the preceding ignition is set to be more retarded when an in-cylinder pressure specified by an in-cylinder pressure specification section is high than when the in-cylinder pressure is low. 1. An apparatus for controlling a compression-ignition type engine that includes:a cylinder; an injector that injects fuel into the cylinder; and an ignition plug that ignites air-fuel mixture, in which the fuel injected from the injector and air are mixed, and that can carry out partial compression ignition combustion to subject some of the air-fuel mixture to SI combustion by spark ignition using the ignition plug and to subject the rest of the air-fuel mixture to CI combustion by self-ignition, the control apparatus for the compression-ignition type engine comprising:an in-cylinder pressure specification section that specifies an in-cylinder pressure as a pressure in the cylinder;an injection control section that controls fuel injection operation by the injector; andan ignition control section that controls ignition operation by the ignition plug,wherein, when the partial compression ignition combustion is carried out, the ignition control section causes the ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an ...

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Номер записи: 73
05-08-2021 дата публикации

CONTROL APPARATUS FOR COMPRESSION-IGNITION TYPE ENGINE

Номер: US20210239067A1
Автор: ARAI Keita, Harada Yuji, INOUE Atsushi, KAWAI Yusuke, Maruyama Keiji, Matsumoto Kota, MIYAMOTO Toru, Nishida Tomohiro, Ohura Takuya, ONO Ryohei, Sueoka Masanari, TOKUNAGA Tatsuhiro, Urushihara Tomonori, YAMAGUCHI Yodai
Принадлежит:

A control apparatus for a compression-ignition type engine is applied to an engine capable of carrying out partial compression ignition combustion in which an air-fuel mixture is subjected to CI combustion by self-ignition. The control apparatus creates a lean A/F environment where an air-fuel ratio as a ratio between air and fuel in a cylinder exceeds 20 and is lower than 35, or a lean G/F environment where a gas air-fuel ratio as a ratio between entire gas and the fuel in the cylinder exceeds 18 and is lower than 50 and the air-fuel ratio substantially matches a stoichiometric air-fuel ratio. Prior to planned timing of the CI combustion, in the lean A/F environment or the lean G/F environment, the control apparatus causes an ignition plug to generate a spark and to generate a high-temperature portion. 1. An apparatus for controlling a compression-ignition type engine that includes: a cylinder; an injector that injects fuel into the cylinder; and an ignition plug that generates a spark in the cylinder , and that can carry out CI combustion to subject at least some of air-fuel mixture , in which the fuel injected from the injector and air are mixed , to self-ignited combustion by a compressive force , the control apparatus for the compression-ignition type engine comprising:a combustion control section that controls combustion operation in the cylinder; andan ignition control section that controls ignition operation by the ignition plug,wherein the combustion control section creates a lean A/F environment where an air-fuel ratio as a ratio between the air and the fuel in the cylinder exceeds 20 and is lower than 35, or a lean G/F environment where a gas air-fuel ratio as a ratio between entire gas and the fuel in the cylinder exceeds 18 and is lower than 50 and the air-fuel ratio substantially matches a stoichiometric air-fuel ratio, andwherein, prior to planned timing of the CI combustion, in the lean A/F environment or the lean G/F environment, the ignition ...

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Номер записи: 74
05-08-2021 дата публикации

CONTROL APPARATUS FOR COMPRESSION-IGNITION TYPE ENGINE

Номер: US20210239068A1
Автор: ARAI Keita, Harada Yuji, INOUE Atsushi, KAWAI Yusuke, Maruyama Keiji, Matsumoto Kota, MIYAMOTO Toru, Nishida Tomohiro, Ohura Takuya, ONO Ryohei, Sueoka Masanari, TOKUNAGA Tatsuhiro, Urushihara Tomonori, YAMAGUCHI Yodai
Принадлежит:

An engine control apparatus includes an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of a expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Energy of the preceding ignition is set to be lower when an in-cylinder temperature specified by an in-cylinder temperature specification section is high than when the in-cylinder temperature is low. 1. An apparatus for controlling a compression-ignition type engine that includes:a cylinder; an injector that injects fuel into the cylinder; and an ignition plug that ignites air-fuel mixture, in which fuel injected from injector and air are mixed, and that can carry out partial compression ignition combustion to subject some of the air-fuel mixture to SI combustion by spark ignition using the ignition plug and to subject the rest of the air-fuel mixture to CI combustion by self-ignition, the control apparatus for the compression-ignition type engine comprising:an in-cylinder temperature specification section that specifies an in-cylinder temperature as a temperature in the cylinder;an injection control section that controls fuel injection operation by the injector; andan ignition control section that controls ignition operation by the ignition plug,wherein, when the partial compression ignition combustion is carried out, the ignition control section causes the ignition plug to carry out: main ignition in which a spark is generated in a late period of a ...

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Номер записи: 75
04-08-2016 дата публикации

IGNITION DEVICE FOR AN AIRCRAFT ENGINE

Номер: US20160222887A1
Автор: Bourgeois Nicolas, Grenier Benoît, Guichemerre Nicolas
Принадлежит: TURBOMECA

A device for igniting an aircraft engine, comprising at least two spark plugs, the device comprising a power supply, a first path for supplying a first spark plug with power and a second path for supplying a second spark plug with power, said paths being connected to the power supply by distribution means of the power supply which are controlled by a FADEC-type control system, wherein said distribution means comprise a first circuit that is configured to alternately supply said first path or said second path with power, and a second circuit for simultaneously supplying said first and second paths with power, the device being configured to use either the first circuit or the second circuit during start-up. 1. Device for igniting an aircraft engine , comprising: at least two spark plugs , a power supply , a first path for supplying a first spark plug with power and a second path for supplying a second spark plug with power , said paths being connected to the power supply by a distributor of the power supply , wherein said distributor comprises a first circuit that is configured to alternately supply said first path or said second path with power , and a second circuit for simultaneously supplying said first and second paths with power , wherein the device is configured to use either the first circuit or the second circuit during start-up.2. Device for igniting an aircraft engine according to claim 1 , wherein the distributor comprises a first claim 1 , monostable relay that is configured to connect either the first circuit or the second circuit to the power supply.3. Device for igniting an aircraft engine according to claim 2 , wherein the first claim 2 , monostable relay is a time-delayed relay.4. Device for igniting an aircraft engine according to claim 1 , wherein the distributor comprises a second claim 1 , two-coil bistable relay that is configured to alternately connect the first circuit to the first path or to the second path.5. Device for igniting an aircraft ...

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Номер записи: 76
03-08-2017 дата публикации

FUEL INJECTION VALVE AND FUEL INJECTION SYSTEM

Номер: US20170218908A1
Автор: MAEDA Kaoru, Stach Thomas, Wieschollek Sebastian
Принадлежит:

In a fuel injection valve that is inserted along a shape of an attachment hole formed in a cylinder head and that directly injects fuel supplied from a fuel supply section into a combustion chamber via a stepped section, the fuel supply section includes: a fuel cup, an end of which has a tapered section; a seal ring that prevents leakage of the fuel to the outside; and a support ring that supports the seal ring, the stepped section includes: a nozzle that injects the fuel into the combustion chamber; and an attachment shaft that has a larger radius than the nozzle, and a first gap in an axial direction between the tapered section and the support ring is larger than a second gap in the axial direction between the attachment hole and the attachment shaft. 11021201301. A fuel injection valve () that is inserted along a shape of an attachment hole () formed in a cylinder head () and that directly injects fuel supplied from a fuel supply section (A) into a combustion chamber () via a stepped section (B) , wherein{'b': '1', 'the fuel supply section (A) includes{'b': 11', '111, 'a fuel cup (), an end of which has a tapered section ();'}{'b': '12', 'a seal ring () that prevents leakage of the fuel to outside; and'}{'b': 13', '12, 'a support ring () that supports the seal ring (),'}{'b': '1', 'the stepped section (B) includes{'b': 15', '30, 'a nozzle () that injects the fuel into the combustion chamber (); and'}{'b': 16', '15, 'an attachment shaft () that has a larger radius than the nozzle (), and'}{'b': 1', '1', '111', '13', '2', '1', '21', '16, 'a first gap (G) in an axial direction (D) between the tapered section () and the support ring () is larger than a second gap (G) in the axial direction (D) between the attachment hole () and the attachment shaft ().'}2. The fuel injection valve according to claim 1 , wherein{'b': 1', '1', '111', '111', '13', '13, 'the first gap (G) is a distance in the axial direction (D) between an end of the tapered section () on a support ring ...

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Номер записи: 77
12-08-2021 дата публикации

SYSTEMS AND METHODS FOR IGNITION COIL MULTIPLEXING IN A PRECHAMBER SYSTEM

Номер: US20210246862A1
Автор: Czekala Michael Damian, Glugla Chris Paul
Принадлежит:

Methods and systems are provided for multiplexing ignition signals in an engine system based on engine operating conditions, each cylinder of the engine system including a main chamber spark plug and a pre-chamber system. In one example, a method may include multiplexing spark signals to a first spark plug and a second spark plug, the first spark plug coupled to a pre-chamber of a first cylinder and the second spark plug coupled to a main chamber of a second cylinder. In this way, one ignition coil may be used to actuate two different spark plugs coupled to separate cylinders. 1. A method for operating an ignition system of an engine , comprising:during an engine cycle, adjusting a delay between actuating a first ignition coil and a second ignition coil based on engine operating conditions, the first ignition coil providing a first ignition spark to a first cylinder via a first spark plug and a first waste spark to a second cylinder via a second spark plug, the second ignition coil providing a second ignition spark to the first cylinder via a third spark plug and a second waste spark to the second cylinder via a fourth spark plug.2. The method of claim 1 , where one of the first spark plug and the third spark plug is coupled to a pre-chamber of the first cylinder and the other is coupled directly to the first cylinder claim 1 , and one of the second spark plug and the fourth spark plug is coupled to a pre-chamber of the second cylinder and the other is coupled directly to the second cylinder.3. The method of claim 1 , where a compression stroke of the first cylinder and an exhaust stroke of the second cylinder occur at a first engine position claim 1 , and an exhaust stroke of the first cylinder and a compression stroke of the second cylinder occur at a second engine position.4. The method of claim 1 , where the delay is an actual total number of crankshaft angle degrees between actuating the first ignition coil and the second ignition coil.5. The method of claim 4 ...

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Номер записи: 78
10-08-2017 дата публикации

MULTIPOINT SPARK PLUG AND MULTIPOINT IGNITION ENGINE

Номер: US20170226982A1
Автор: Minami Katsuaki
Принадлежит:

A multipoint spark plug for igniting an air-fuel mixture in a combustion chamber of an engine includes a main body portion that is formed in a flattened shape and inserted into an insertion hole of the engine such that a tip end portion thereof opposes the combustion chamber, a pair of side electrodes provided via a gap in a lengthwise direction of the tip end portion, and at least one intermediate electrode provided in the gap between the pair of side electrodes such that a plurality of ignition gaps are formed in the lengthwise direction of the tip end portion. 1. A multipoint spark plug configured to ignite an air-fuel mixture in a combustion chamber of an engine , comprising:a main body portion formed in a flattened shape, the main body portion being inserted into an insertion hole of the engine such that a tip end portion thereof opposes the combustion chamber;a pair of side electrodes provided via a gap in a lengthwise direction of the tip end portion; andat least one intermediate electrode provided in the gap between the pair of side electrodes such that a plurality of ignition gaps are formed in the lengthwise direction of the tip end portion.2. The multipoint spark plug according to claim 1 , further comprising electrode holding portions that project into the combustion chamber from the tip end portion claim 1 , the electrode holding portions holding the side electrodes and the intermediate electrode claim 1 ,wherein the side electrodes and the intermediate electrode project further into the combustion chamber from the electrode holding portions.3. The multipoint spark plug according to claim 2 , wherein the electrode holding portions insulate the side electrodes and the intermediate electrode from the main body portion.4. The multipoint spark plug according to claim 1 , wherein the tip end portion is formed in an identical shape to an inner periphery of the combustion chamber so as to form a part of the inner periphery.5. The multipoint spark plug ...

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Номер записи: 79
09-07-2020 дата публикации

PARABOLIC COMBUSTION ENGINE

Номер: US20200217267A1
Автор: Condon Richard William
Принадлежит:

An apparatus comprising a cylinder for an internal combustion engine having at least one combustion chamber and a squish area disposed at or around a base of the at least one combustion chamber, wherein the at least one combustion chamber comprises a paraboloidal cavity. 1. An apparatus comprising:a cylinder having at least one combustion chamber and a squish area having a non-zero squish angle disposed at or around a base of the at least one combustion chamber;wherein the at least one combustion chamber comprises a paraboloidal cavity;wherein the cylinder has a squish ratio greater than or equal to 0.5; andwherein the cylinder is adapted to position an electrode of a sparkplug at a focal point of the paraboloidal cavity.2. The apparatus of claim 1 , wherein the cylinder includes a cylinder body and a cylinder head.3. The apparatus of claim 2 , wherein the cylinder body and cylinder head are of a unitary construction.4. The apparatus of claim 2 , wherein the cylinder head comprises the at least one combustion chamber and a sparkplug port.5. The apparatus of claim 4 , wherein the cylinder head further comprises a fuel injection port.6. The apparatus of claim 5 , wherein the fuel injection port is offset from a centerline of the cylinder.7. The apparatus of claim 6 , wherein the sparkplug port is offset from the centerline of the cylinder.8. The apparatus of claim 1 , wherein the cylinder further comprises at least one piston claim 1 , wherein the at least one piston comprises a piston top.9. The apparatus of claim 8 , wherein an axis of symmetry of the paraboloidal cavity coincides with a centerline of the cylinder or a center of the piston top.10. The apparatus of claim 8 , wherein the piston top comprises a volumetrically-enhanced portion that extends into the paraboloidal cavity when the piston is at top dead center.11. An apparatus comprising:a cylinder having at least one combustion chamber and a squish area having a non-zero squish angle disposed at or around a ...

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Номер записи: 80
23-08-2018 дата публикации

MULTIPOINT IGNITION DEVICE AND MULTIPOINT IGNITION ENGINE

Номер: US20180241180A1
Автор: Minami Katsuaki
Принадлежит:

A multipoint ignition device for igniting an air-fuel mixture in a combustion chamber of an engine includes: an insulating member formed in an annular shape such that an inner periphery thereof faces the combustion chamber; a plurality of electrodes held on the insulating member so as to form a plurality of ignition gaps inside the combustion chamber; a main body portion provided on an outer periphery of the insulating member; and an intermediate member that is provided between the main body portion and the insulating member and has a larger thermal expansion coefficient than the insulating member. 1. A multipoint ignition device for igniting an air-fuel mixture in a combustion chamber of an engine , comprising:an insulating member formed in an annular shape such that an inner periphery thereof faces the combustion chamber;a plurality of electrodes held on the insulating member so as to form a plurality of ignition gaps inside the combustion chamber;a main body portion provided on an outer periphery of the insulating member; andan intermediate member that is provided between the main body portion and the insulating member and has a larger thermal expansion coefficient than the insulating member.2. The multipoint ignition device according to claim 1 , wherein the intermediate member is formed in an annular shape that is concentric with the insulating member.3. The multipoint ignition device according to claim 1 , wherein the intermediate member is formed so as to be divided into a plurality in a circumferential direction of the insulating member.4. The multipoint ignition device according to claim 1 , wherein the intermediate member has a larger thermal expansion coefficient than the main body portion.5. The multipoint ignition device according to claim 1 , wherein the intermediate member is formed from a foamed metal.6. A multipoint ignition engine comprising a multipoint ignition device according to . The present invention relates to a multipoint ignition device ...

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Номер записи: 81
23-08-2018 дата публикации

MULTIPOINT IGNITION DEVICE AND MULTIPOINT IGNITION ENGINE

Номер: US20180241181A1
Автор: Minami Katsuaki
Принадлежит:

A multipoint ignition device for igniting an air-fuel mixture in a combustion chamber of an engine includes: an insulating member formed in an annular shape such that an inner periphery thereof faces the combustion chamber; and a plurality of electrodes held on the insulating member so as to form a plurality of ignition gaps in a circumferential direction inside the combustion chamber, wherein the insulating member includes a plurality of divided insulating members formed in divided form, and the divided insulating member close to an intake valve of the engine has a higher thermal conductivity than the divided insulating member close to an exhaust valve of the engine. 1. A multipoint ignition device for igniting an air-fuel mixture in a combustion chamber of an engine , comprising:an insulating member formed in an annular shape such that an inner periphery thereof faces the combustion chamber; anda plurality of electrodes held on the insulating member so as to form a plurality of ignition gaps in a circumferential direction inside the combustion chamber,wherein the insulating member includes a plurality of divided insulating members formed in divided form, andthe divided insulating member close to an intake valve of the engine has a higher thermal conductivity than the divided insulating member close to an exhaust valve of the engine.2. The multipoint ignition device according to claim 1 , wherein the electrodes include:a side electrode provided in a pair; anda plurality of intermediate electrodes provided between the side electrodes so as to form the plurality of ignition gaps, andthe intermediate electrodes project into the combustion chamber from the insulating member so as to be exposed to the interior of the combustion chamber over an entire length thereof.3. The multipoint ignition device according to claim 1 , wherein the plurality of divided insulating members respectively holds the electrodes.4. The multipoint ignition device according to claim 1 , wherein ...

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Номер записи: 82
08-09-2016 дата публикации

INTERNAL COMBUSTION ENGINE

Номер: US20160258346A1
Автор: Kaneko Naoya, KITAZUME Yoshiyuki, Yarino Motonari
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

Stable combustion is achieved in an internal combustion engine, in cases where an air stream has occurred in a cylinder. The engine includes a fuel injection valve having a first nozzle hole and a second nozzle hole, and an spark plug disposed at a position through which the swirling flow flows, and which is at the downstream side of the flow of the swirling flow from an extension line of the first nozzle hole and at the upstream side of the flow of the swirling flow from an extension line of the second nozzle hole, for igniting a spray of fuel injected from the fuel injection valve, wherein the first nozzle hole and the second nozzle hole are formed in such a manner that the shortest distance from the extension line of the first nozzle hole to the spark plug becomes longer than the shortest distance from the extension line of the second nozzle hole to the spark plug. 1. An internal combustion engine in which a swirling flow occurs in a cylinder , said engine comprising:a fuel injection valve that has a plurality of nozzle holes including at least a first nozzle hole and a second nozzle hole for injecting fuel into said cylinder; andan spark plug that is disposed at a position through which said swirling flow flows, and which is at the downstream side of the flow of said swirling flow from an extension line of said first nozzle hole and at the upstream side of the flow of said swirling flow from an extension line of said second nozzle hole, said spark plug to ignite a spray of fuel injected from said fuel injection valve;wherein said first nozzle hole and said second nozzle hole are formed in such a manner that a shortest distance from the extension line of said first nozzle hole to said spark plug becomes longer than a shortest distance from the extension line of said second nozzle hole to said spark plug.2. The internal combustion engine as set forth in claim 1 , whereinsaid first nozzle hole and said second nozzle hole are formed in such a manner that the ...

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Номер записи: 83
27-11-2014 дата публикации

ENGINE AND STRADDLE-TYPE VEHICLE

Номер: US20140345558A1
Автор: MIYATA Manabu
Принадлежит: YAMAHA HATSUDOKI KABUSHIKI KAISHA

An engine of a straddle-type vehicle includes a seal between a surrounding wall and a pipe. A cylinder head includes a first surrounding wall portion and a second surrounding wall portion. One end of the pipe is pressed in against the first surrounding wall portion. The second surrounding wall portion is located more distant from an attachment portion than the first surrounding wall portion is, and has an inner diameter larger than that of the first surrounding wall portion. The pipe includes an annular projection. The annular projection projects from the outer periphery of the pipe, and divides a space defined by the outer periphery of the pipe and the inner periphery of the second surrounding wall portion into subspaces arranged in an axial direction of the pipe when the one end of the pipe is pressed in against the first surrounding wall portion. 1. An engine comprising:a cylinder head;a spark plug attached to the cylinder head; anda pipe located around the spark plug; wherein an attachment portion to which the spark plug is attached; and', 'a surrounding wall located around the spark plug and extending in a first direction, the first direction being an axial direction of the pipe;, 'the cylinder head includes a first surrounding wall portion against which one end of the pipe is pressed in; and', 'a second surrounding wall portion located more distant from the attachment portion than the first surrounding wall portion is as measured in the first direction, and having an inner diameter larger than that of the first surrounding wall portion;, 'the surrounding wall includesthe pipe includes an annular projection projecting from an outer periphery of the pipe to divide a space defined by an outer periphery of the pipe and an inner periphery of the second surrounding wall portion into subspaces arranged in the first direction when the one end of the pipe is pressed in against the first surrounding wall portion; anda liquid gasket is included in a first subspace which ...

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Номер записи: 84
15-09-2016 дата публикации

Friction-Welded Structure Assembly, Water-Cooled Internal Combustion Engine Cylinder Head, Water-Cooled Internal Combustion Engine And Machine Equipped With Same

Номер: US20160265473A1
Автор: Ding Wenjiang, Fu Penghuai, Jiang Yaofu, PENG Liming, Zhu Yongkui
Принадлежит:

The invention provides a friction-welded structure assembly, comprising a first workpiece (B), a second workpiece (C) and a friction welding connecting part (A). The lower side of the friction welding connecting part (A) has a first friction welding junction interface (H) which is in contact with a surface of the first workpiece (B) and a second friction welding junction interface (H) which is in contact with a surface of the second workpiece (C). The friction welding connecting part (A) is tightly pressed on both the first workpiece (B) and the second workpiece (C) which are positioned to be relatively corresponding and fixed to each other, while being moved under a pressure, so as to heat said first friction welding junction interface (H) and said second friction welding junction interface (H), then said friction welding connecting part (A) is stopped under the pressure, and said first friction welding junction interface (H) and said second friction welding junction interface (H) become cool, thereby said first workpiece (B) and said second workpiece (C) are welded together to form the friction-welded structure assembly via said friction welding connecting part (A). Also, The invention relates to a water-cooled internal combustion engine cylinder head using the friction-welded structure assembly described above. 1. A friction-welded structure assembly , comprising:{'b': 10', '10', '12, 'a first workpiece (B), said first workpiece (B) having a support shoulder (B);'}{'b': 10', '10', '10', '10', '12', '10, 'a second workpiece (C), said second workpiece (C) having a through hole corresponding to said first workpiece (B), and said second workpiece (C) being supported at its lower portion on the support shoulder (B) of said first workpiece (B); and'}{'b': 10', '10', '10', '10', '11', '10, 'a friction welding connecting part (A), said friction welding connecting part (A) having, at its lower portion, a first friction welding junction interface (H) which is in contact ...

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Номер записи: 85
22-09-2016 дата публикации

CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE HAVING COOLANT CHANNELS

Номер: US20160273481A1
Автор: Ickinger Frank
Принадлежит:

A cylinder head for an internal combustion engine has at least two outlet valves (), at least two inlet valves (), a spark or glow plug () arranged centrally between the valves (), and at least one injection valve (). Coolant channels () accommodate a throughflow of the cylinder head with cooling liquid. The coolant channels () are arranged in the incident or surrounding flow region of the spark/glow plug () and injection valve () to run at a substantially acute angle in the flow direction toward the spark/glow plug () and injection valve (). 1. A cylinder head for an internal combustion engine comprising at least two inlet valves , at least two outlet valves , a spark or glow plug arranged centrally between the valves , at least one injection valve , and coolant channels for a throughflow of the cylinder head with cooling liquid , the coolant channels being arranged in the incident or surrounding flow region of the spark/glow plug and injection valve so as to run at an acute angle in the flow direction toward the spark/glow plug and injection valve.2. The cylinder head of claim 1 , wherein the walls in the cylinder head that form the coolant channels are arranged in the region of the spark/glow plug and injection valve to substantially enclose the region tightly.3. The cylinder head of claim 1 , wherein a cooling liquid inlet into the coolant channels in the cylinder head is arranged on a side of the cylinder head having the outlet valves.4. The cylinder head of claim 1 , wherein a cooling liquid inlet into the cooling channels in the cylinder head is arranged on a side of the cylinder head having the inlet valves.5. The cylinder head as claimed in claim 1 , wherein a cooling liquid inlet into the cooling channels in the cylinder head is arranged between one of the inlet valves and one of the outlet valves. This application claims priority under 35 USC 119 to German Patent Appl. No. 10 2015 103 905.2 filed on Mar. 17, 2015, the entire disclosure of which is ...

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Номер записи: 86
22-08-2019 дата публикации

FUEL INJECTION DEVICE

Номер: US20190257264A1
Автор: IIZUKA Akira, Ishikawa Tohru, Miyake Takao, YOSHIMURA Kazuki
Принадлежит: Hitachi Automotive Systems, Ltd.

A fuel injection device including a valve body having an injection hole-formed part having a plurality of injection holes on the leading end side of the valve body. An injection hole comprises a crossing angle, θ between a central axis of the injection hole-formed part and an injection hole axis, and another injection hole comprises a crossing angle, θ between the central axis and another injection hole axis. θ is larger than θ The injection holes are formed such that a distance between the central axis and an inlet surface center of the injection hole is longer than a distance between the central axis and another inlet surface center of the another injection hole. A straight line beyond an outlet surface in the injection hole axis does not intersect with another straight line beyond another outlet surface in the another injection hole axis. 1. A fuel injection device comprising: a valve body; and an injection hole-formed part in which a plurality of injection holes to inject fuel is formed on a leading end side of the valve body ,{'b': 1', '2', '1, 'wherein in the injection hole-formed part, a first injection hole in which a crossing angle between a central axis of the injection hole-formed part and a first injection hole axis becomes θ, and a second injection hole in which a crossing angle between the central axis of the injection hole-formed part and a second injection hole axis becomes θ larger than θ are formed,'}the first injection hole and the second injection hole are formed in such a manner that a first shortest distance between the central axis of the injection hole-formed part and a first inlet surface center of the first injection hole becomes longer than a second shortest distance between the central axis of the injection hole-formed part and a second inlet surface center of the second injection hole, anda first straight line beyond a first outlet surface in the first injection hole axis of the first injection hole is formed in such a manner as not to ...

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Номер записи: 87
29-09-2016 дата публикации

INTAKE DEVICE OF ENGINE

Номер: US20160281633A1
Автор: Nabetani Yuki, NAKAHARA Yasushi, Suzuki Yohei, Wada Yoshitaka
Принадлежит:

An intake device of an engine having cylinders is provided. The intake device includes a cylinder head formed with two intake ports per cylinder, and a forced induction system. One of the two intake ports is designed to have a smaller passage cross-sectional area at a throat portion thereof than that of the other intake port, and to cause a strength of a tumble flow strength of intake air formed within a combustion chamber to be stronger when a flow of the intake air into the combustion chamber is assumed to be caused only from the one of the two intake ports, than only from the other intake port. A tumble ratio of the intake air flow within the combustion chamber is a predetermined value or greater when the intake air is forcibly induced and flows into the combustion chamber from the two intake ports. 1. An intake device of an engine having one or more cylinders , the intake device comprising:a cylinder head formed with two intake ports per cylinder for flowing intake air into a combustion chamber of the cylinder; anda forced induction system for forcibly inducing the intake air,wherein the two intake ports have respective throat portions, and in each cylinder, one of the two intake ports is designed to have a smaller passage cross-sectional area at its throat portion than a passage cross-sectional area of the throat portion of the other intake port, and to cause a strength of a tumble flow of intake air formed within the combustion chamber when a flow of the intake air into the combustion chamber is assumed to be only from the one of the two intake ports, to be stronger than a strength of a tumble flow of intake air formed within the combustion chamber when the flow of the intake air into the combustion chamber is assumed to be only from the other intake port, andwherein a tumble ratio of a flow of the intake air within the combustion chamber is a predetermined value or greater when the intake air is forcibly induced by the forced induction system and flows into ...

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Номер записи: 88
27-09-2018 дата публикации

Internal Combustion Engines, Systems, Devices, and Methods for Propulsion and Power Applications

Номер: US20180274481A1
Автор: Antonio Silva
Принадлежит: Gryphon Diesel Engines LLC

Engines, systems, devices, software, and methods of the present invention provide increased fuel efficiency and emission performance. The engine may include a magnesium alloy cast engine block cast as a mono-block with or without a ceramic inner core and including one or more cylinders designed to provide compression ratio of 10:1 to 14:1. Each cylinder may include one or more laser igniters, one or more supercritical fuel injectors configured to inject the fuel near or in a supercritical state, and carbon dioxide, which may be in the form of engine exhaust gas. The fuel may be diesel, gasoline, or other suitable hydrocarbons that may be cracked into smaller molecules prior to be injected into the cylinder.

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Номер записи: 89
06-10-2016 дата публикации

Controller for internal combustion engine

Номер: US20160290307A1
Автор: Masakatsu Nagai, Shigeyuki Urano, Yoshihiro Sakayanagi
Принадлежит: Toyota Motor Corp

A controller for an internal combustion engine includes a crank angle detector and an ECU. The ECU is configured to: (a) calculate a mass fraction burned; (b) acquire the crank angle, which is detected by the crank angle detector when the mass fraction burned reaches a predetermined mass fraction burned, as a specified crank angle; and (c) control at least one of an amount of fuel injected, an amount of intake air, or ignition energy on the basis of a first difference. The first difference is a difference between a first parameter and a second parameter. The first parameter is a crank angle period from an ignition time to the specified crank angle or a correlation value of the crank angle period. The second parameter is a target value of the crank angle period or a target value of the correlation value.

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Номер записи: 90
13-10-2016 дата публикации

INTERNAL COMBUSTION ENGINE

Номер: US20160298586A1
Автор: KIMURA Koshiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An internal combustion engine where a tumble flow is generated inside a combustion chamber includes: a spark plug; an in-cylinder injection valve that injects fuel at a specific timing so that a fuel spray proceeds towards the vortex center of the tumble flow at the time of stratified charge combustion operation; a variable tumble flow device for making the strength of a tumble flow variable; and a control device configured, when the spray penetration force of fuel injected by the in-cylinder injection valve is increased due to a change over time of the internal combustion engine, to close the variable tumble flow device during the stratified charge combustion operation. 1. An internal combustion engine in which a tumble flow is generated inside a combustion chamber , comprising:a spark plug arranged at a central part of a wall surface of the combustion chamber on a cylinder head side;an in-cylinder injection valve configured to inject fuel at a specific timing so that, when stratified charge combustion operation is performed, a fuel spray proceeds towards a vortex center of the tumble flow;a variable tumble flow device configured to make a strength of a tumble flow variable; anda control device configured, when a spray penetration force of fuel that is injected by the in-cylinder injection valve is increased due to a change over time of the internal combustion engine, to control the variable tumble flow device so as to increase the strength of the tumble flow during the stratified charge combustion operation.2. The internal combustion engine according to claim 1 ,wherein the control device is configured, when the spray penetration force is increased due to the change over time, to increase the strength of the tumble flow with the variable tumble flow device during the stratified charge combustion operation until an air-fuel ratio index value that has a correlation with a plug-periphery air-fuel ratio that is an air-fuel ratio of an air-fuel mixture at a periphery ...

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Номер записи: 91
12-10-2017 дата публикации

Ignition control device and ignition control method for internal combustion engine

Номер: US20170292492A1
Автор: Takahiko Inada, Takahiro Enomoto
Принадлежит: Mitsubishi Electric Corp

The ignition control device includes a spark plug that includes a first electrode and a second electrode disposed so as to oppose each other, an ignition coil that includes a plurality of sets of a primary coil and a secondary coil, generates a high voltage in the secondary coil by energizing or interrupting a primary current supplied to the primary coil, and applies the generated high voltage to the first electrode, and a control unit that, in a case where a plurality of the primary coils are driven during a single ignition process, temporarily stops energization of a primary current supplied to a second primary coil when a primary current supplied to a first primary coil is interrupted, and re-energizes the primary current supplied to the second primary coil following the elapse of an energization stoppage period.

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Номер записи: 92
03-09-2020 дата публикации

METHOD FOR OPERATING A GAS ENGINE

Номер: US20200277907A1
Автор: Prümm Franz Werner
Принадлежит:

The invention relates to a method for operating a gas engine having at least one combustion chamber, in particular for a motor vehicle, wherein a gaseous fuel is injected directly into the combustion chamber in order to operate the gas engine, the gaseous fuel being injected directly into the combustion chamber within a working cycle of the gas engine during at least two phases spaced apart from each other in time, the at least two phases beginning and ending before the first ignition occurring within the working cycle. 1. A method for operating a gas engine comprising at least one combustion chamber , the method comprising:directly injecting a gaseous fuel for operating a gas engine into a combustion chamber,wherein the gaseous fuel is directly injected into the combustion chamber within a working cycle of the gas engine during at least two phases spaced apart from each other in time,wherein the at least two phases begin and end in time before a first ignition occurring within the working cycle.2. The method according to claim 1 ,whereina hydrogen engine is operated as the gas engine, wherein hydrogen is used as the gaseous fuel.3. The method according to claim 1 ,whereinfirst, a first one of the phases begins and ends, whereupon the second phase following the first phase in time begins and ends.4. The method according to claim 3 ,whereinthe gas engine comprises at least one piston, which is translationally movably accommodated in the combustion chamber.5. The method according to claim 4 ,whereinthe first phase begins after a top charge changing dead center of the piston.6. The method according to claim 5 ,whereinthe first phase ends before a bottom dead center of the piston immediately adjoining to the top charge changing dead center.7. The method according to claim 4 ,whereinthe first phase extends from 400 degrees of crank angle after a top ignition dead center of the piston to 500 degrees of crank angle after the top ignition dead center.8. The method according ...

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Номер записи: 93
11-10-2018 дата публикации

ELECTRONIC IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND CONTROL METHOD FOR SAID ELECTRONIC IGNITION SYSTEM

Номер: US20180291862A1
Автор: CARUGATI Eugenio, FORTE Pasquale, SILVA Stefano
Принадлежит:

An electronic ignition system for an internal combustion engine. The system includes an ignition coil provided with a primary winding and a secondary winding, a switch that is connected to the primary winding and that is drivable to an open and/or closed position according to a value of a driving signal. A control unit is configured to drive the switch to the open and/or closed position based on the driving signal. A voltage changing electronic element is operatively interposed between an electrical connection and the primary winding, and is configured to change the voltage value of the primary winding between at least a first and a second voltage value. The control unit is configured to generate the control signal and send the control signal to having the first value to the changing electronic element at least during a first charging interval of the primary winding. 1. An electronic ignition system for an internal combustion engine , configured to generate , within an engine cylinder , a spark of predetermined duration , the electronic ignition system comprising:an ignition coil that includes a primary winding and a secondary winding, wherein said primary winding is connectable, by an electrical connection, to a voltage generator device and wherein said secondary winding is connectable to a spark plug;a switch connected to said primary winding, wherein said switch is drivable to be opened and/or closed according to a value of a driving signal (G), in order to prevent or allow a passage of electric current through said primary winding, respectively;a control unit associated with said switch and configured to drive said switch to an open position and/or a closed position according to the value of said driving signal (G);a voltage changing electronic element connected to said electrical connection and operatively interposed between the electrical connection and the primary winding, and wherein the voltage changing electronic element is configured to change a voltage ...

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Номер записи: 94
29-10-2015 дата публикации

SEALING RING FOR A SPARK PLUG OF AN INTERNAL COMBUSTION ENGINE, SPARK PLUG AND INTERNAL COMBUSTION ENGINE

Номер: US20150311678A1
Автор: Niessner Werner, Schenk Alexander
Принадлежит:

A sealing ring for a spark plug that has an external thread for screwing into an internal combustion engine, a collar and a thread undercut between the external thread and the collar. The sealing ring includes a ring-shaped solid sealing element made from metal. The sealing element has two planar annular sealing surfaces that are arranged parallel to one another. An annular retaining element composed of an elastomer for engaging in the thread undercut of the spark plug in a self-retaining manner is attached to the sealing element on the inner ring side thereof. Also included is a spark plug comprising such a sealing ring, and an internal combustion engine comprising such spark plugs. 1. A sealing ring adapted for a spark plug having an external thread for screwing into an internal combustion engine , a collar and a thread undercut between the external thread and the collar , the sealing ring comprising:a ring-shaped solid sealing element comprised of metal, wherein the sealing element has two planar annular sealing surfaces that are arranged parallel to one another; andan annular retaining element comprised of an elastomer for engaging in a self-retaining manner in the thread undercut of the spark plug is attached to the sealing element on an inner ring side thereof.2. The sealing ring according to claim 1 , wherein the sealing element has a rectangular cross-section.3. The sealing ring according to claim 1 , wherein the retaining element is connected to the sealing element in a substance-to-substance bonded manner.4. The sealing ring according to claim 1 , wherein the retaining element is arranged completely between two planes defined by the two sealing surfaces of the sealing element.5. The sealing ring according to claim 1 , wherein the retaining element has two planar annular surfaces which are arranged parallel to one another.6. The sealing ring according to claim 5 , wherein the two annular surfaces of the retaining element are arranged parallel to the sealing ...

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Номер записи: 95
05-11-2015 дата публикации

Control apparatus for internal combustion engine (as amended)

Номер: US20150316019A1
Автор: Koshiro Kimura
Принадлежит: Toyota Motor Corp

A control apparatus for an internal combustion engine according to the present invention includes a spark plug ( 30 ) for igniting an air-fuel mixture in a cylinder, and is configured to be capable of measuring a discharge voltage of the spark plug ( 30 ). The control apparatus calculates a turbulence intensity index value that indicates the turbulence intensity of in-cylinder gas based on a predetermined frequency component extracted from a discharge voltage during at least a part of a discharge duration leading up to ignition and, in accordance with the turbulence intensity index value, adjusts the ignition energy that is supplied to the spark plug ( 30 ) during a combustion duration in a cycle in which the turbulence intensity index value is calculated.

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Номер записи: 96
26-10-2017 дата публикации

COMPRESSION-IGNITION TYPE INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE

Номер: US20170306918A1
Автор: Ikeda Yuji
Принадлежит: IMAGINEERING, INC.

A compression-ignition type internal combustion engine that burns a gaseous fuel, improves an ignition performance not only at a center part of the combustion chamber but also at an outer edge part. The compression-ignition engine comprises an electromagnetic wave generator configured to generate an electromagnetic wave, a controller configured to control the electromagnetic wave generator, and a plasma generator comprising a boosting circuit that constitutes a resonator configured to boost the electromagnetic wave, a first electrode configured to receive an output from the boosting circuit, and a second electrode provided to a vicinity of the first electrode, and the plasma generator is configured such that the first electrode is extruded and exposed toward a combustion chamber of the internal combustion engine, and a plurality of plasma generators are provided. 1. A compression-ignition type internal combustion engine that burns a gaseous fuel comprising:an electromagnetic wave generator configured to generate an electromagnetic wave;a controller configured to control the electromagnetic wave generator; anda plasma generator comprising a boosting circuit that constitutes a resonator configured to boost the electromagnetic wave, a first electrode configured to receive an output from the boosting circuit, and a second electrode provided to a vicinity of the first electrode,wherein the plasma generator is configured such that the first electrode is extruded and exposed toward a combustion chamber of the internal combustion engine, and a plurality of plasma generators are provided.2. The internal combustion engine according to claim 1 , further comprising intake ports and exhaust ports each formed on a ceiling surface of the combustion chamber claim 1 , wherein the plasma generator is arranged between the intake ports claim 1 , between the exhaust ports claim 1 , or between the intake port and the exhaust port.3. An internal combustion engine comprising:an ...

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Номер записи: 97
12-11-2015 дата публикации

PREFORMED ARTICLE FOR CYLINDER HEAD, CYLINDER HEAD, AND METHOD FOR MANUFACTURING CYLINDER HEAD

Номер: US20150322884A1
Автор: NISHIDA Hideyuki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A preformed article for a cylinder head, includes: a first portion where a first through hole is to be formed from an upper wall portion to a central portion which is a portion, of a bottom wall portion, forming a combustion chamber of an internal combustion engine; and a second portion where a second through hole is to be formed to the central portion from an outer wall portion (for example, the upper wall portion) positioned above an intake port which opens to the central portion. The first portion and the second portion are portions where a cooling water passage is not formed. 1. A preformed article for a cylinder head , the preformed article comprising:a first portion including a first prepared hole portion for forming a first through hole from an upper wall portion to a central portion which is a portion, of a bottom wall portion, forming a combustion chamber of an internal combustion engine; anda second portion including a second prepared hole portion common to a second through hole and a third through hole, the second prepared hole portion being for forming one of the second through hole and the third through hole, the second through hole being formed through a part of an intake port to the central portion from an outer wall portion positioned above the intake port which opens to the central portion, the third through hole being formed from the outer wall portion to the intake port and having a same axis as an axis of the second through hole.2. (canceled)3. (canceled)4. The preformed article for the cylinder head of claim 1 , whereinwhen the first and second through holes are formed, the first through hole is to be formed to be acceptable to a fuel injection valve, and the second through hole is formed to be acceptable to a glow plug.5. A cylinder head manufactured by using a preformed article for a cylinder head claim 1 , wherein a first portion including a first prepared hole portion for forming a first through hole from an upper wall portion to a central ...

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Номер записи: 98
10-11-2016 дата публикации

COMBUSTION CHAMBER STRUCTURE OF SPARK-IGNITION INTERNAL COMBUSTION ENGINE

Номер: US20160326947A1
Автор: Sakai Hiroyuki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A combustion chamber structure for a spark-ignition internal combustion engine includes a combustion chamber, an ignition plug, and a guide portion. The combustion chamber is configured to produce tumble flow that swirls in an axial direction of a cylinder. The ignition plug is disposed in a central portion of an upper wall of the combustion chamber. The guide portion protrudes from the upper wall of the combustion chamber, and is configured to guide airflow passing through the central portion of the combustion chamber in an intake-exhaust direction of the combustion chamber while dispersing the airflow around the guide portion. 1. A combustion chamber structure for a spark-ignition internal combustion engine , the combustion chamber structure comprising:a combustion chamber configured to produce tumble flow that swirls in an axial direction of a cylinder;an ignition plug disposed in a central portion of an upper wall of the combustion chamber; anda guide portion that protrudes from the upper wall of the combustion chamber so as to surround the ignition plug, the guide portion extending to a larger extent at the intake port side as compared with at the exhaust port side, the guide portion being configured to guide airflow passing through the central portion of the combustion chamber in an intake-exhaust direction of the combustion chamber while dispersing the airflow around the guide portion.2. (canceled)3. The combustion chamber structure according to claim 1 , wherein:the upper wall of the combustion chamber has two intake ports and two exhaust ports; andthe guide portion has an outer periphery that starts at a point between the two intake ports, the outer periphery extends along outer edges of valve seats of the respective intake ports, the outer periphery bends at points between the intake ports and the exhaust ports, to be directed to between the two exhaust ports, and the outer periphery ends at a point between the two exhaust ports. 1. Field of the ...

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Номер записи: 99
19-11-2015 дата публикации

Ignition System Including a Measurement Device for Providing Measurement Signals to a Combustion Engine's Control System

Номер: US20150330353A1
Автор: Bert Gustafsson, Jorgen Bengtsson
Принадлежит: SEM AB

The present invention relates to an ignition system (T) for a combustion engine, the internal combustion engine comprising a control system, the ignition system (T) further comprising a power source ( 30 ), at least one ignition coil ( 10, 1 1, 12 ) having at least one primary coil (L 2, L 4, L 6 ) and one secondary coil (L 3, L 5, L 7 ) for a spark plug ( 13, 14, 15 ) and a measurement device ( 50 ) for at least one of the parameters spark current, ion current, ignition voltage and primary voltage, said measurement device ( 50 ) being adapted to provide measurement signals to said control system for regulating the ignition system (T), the ignition system (T) also comprising means for transforming up voltage and storing energy, and a plurality of switches (S 1 -S 7 ), said control system being adapted to control said switches (S 1 -S 7 ), by means of said measuring signal(s), for the supply of adaptive spark energy and/or to control the polarity of the spark.

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Номер записи: 100