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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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20-09-2014 дата публикации

Система двигателя

Номер: RU0000145307U1
Автор: Пол Джозеф ТЕННИСОН, Эрик Мэттью КУРТЦ
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Система двигателя, содержащая:двигатель с воспламенением от сжатия, включающий в себя камеру сгорания;топливную форсунку, непосредственно впрыскивающую топливо в камеру сгорания; исистему управления, содержащую компьютерную программу, хранимую на постоянном носителе, включающем в себя исполняемые команды для впрыска топлива в цилиндр, включающего в себя предварительные впрыски топлива, основной впрыск топлива и впрыски топлива после сгорания, в ответ на концентрацию биодизеля у топлива, подаваемого в двигатель.2. Система двигателя по п. 1, дополнительно содержащая дополнительные команды для оценки концентрации биодизеля в ответ на температуру при восстановлении дизельного сажевого фильтра.3. Система двигателя по п. 1, дополнительно содержащая дополнительные команды для оценки концентрации биодизеля в ответ на выходной сигнал датчика кислорода.4. Система двигателя по п. 1, дополнительно содержащая дополнительные команды для оценки концентрации биодизеля в ответ на выходной сигнал датчика NOx.5. Система двигателя по п. 1, дополнительно содержащая дополнительные команды для оценки концентрации биодизеля в ответ на выходной сигнал датчика давления в цилиндре.6. Система двигателя по п. 1, дополнительно содержащая дополнительные команды для установки опережения момента впрыска топлива в ответ на повышение концентрации биодизеля.7. Система двигателя по п. 1, дополнительно содержащая дополнительные команды для оценки концентрации биодизеля в ответ на событие заправки топлива. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 145 307 U1 (51) МПК F02D 41/30 (2006.01) F02M 45/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014103597/06, 03.02.2014 (24) Дата начала отсчета срока действия патента: 03.02.2014 (72) Автор(ы): КУРТЦ Эрик Мэттью (US), ТЕННИСОН Пол Джозеф (US) 04.02.2013 US 13/758,901 (45) Опубликовано: 20.09.2014 Бюл. № 26 (54) СИСТЕМА ДВИГАТЕЛЯ R U 1 4 5 3 0 7 U 1 и систему управления ...

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Номер записи: 1
10-06-2015 дата публикации

Система двигателя

Номер: RU0000152515U1
Автор: Том Дж. ЛЕОНЕ
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Система двигателя, содержащая:сепаратор для разделения топлива на основании октанового числа;топливный бак для высокооктанового топлива, присоединенный к сепаратору, с некоторым количеством высокооктанового топлива, расположенным в нем;обратную магистраль, возвращающую топливо из сепаратора в наполняемый снаружи топливный бак в ответ на октановое число;систему управления с командами для инициирования режима предотвращения застойности в течение некоторой продолжительности времени после события запуска двигателя или события дозаправки топливом, причем режим предотвращения застойности включает в себя впрыск равных количеств топлива из топливного бака для высокооктанового топлива и топливного бака для низкооктанового топлива в двигатель.2. Система двигателя по п. 1, в которой сепаратор включает в себя закрытый сосуд и высокооктановую часть, низкооктановую часть и полупроницаемую мембрану, причем полупроницаемая мембрана расположена между высокооктановой частью и низкооктановой частью сепаратора.3. Система двигателя по п. 2, в которой полупроницаемая мембрана проницаема для одного или более ароматических углеводородов.4. Система двигателя по п. 1, в которой топливный бак для высокооктанового топлива присоединен к двигателю и топливный бак для низкооктанового топлива присоединен к двигателю посредством непосредственного впрыска или впрыска во впускной канал.5. Система двигателя по п. 1, в которой система управления содержит дополнительные команды для впрыска топлива в ответ на условия работы, когда не находится в режиме предотвращения застойности.6. Система двигателя по п. 1, в которой система управ� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 152 515 U1 (51) МПК F02D 19/06 (2006.01) F02D 19/08 (2006.01) F02M 43/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014134313/06, 21.08.2014 (24) Дата начала отсчета срока действия патента: 21.08.2014 (72) Автор(ы): ЛЕОНЕ Том Дж. (US) (73) ...

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Номер записи: 2
20-10-2017 дата публикации

Система питания дизеля на смесевом топливе

Номер: RU0000174573U1
Автор: Алексей Иванович Паутов, Игорь Владимирович Зефиров, Павел Сергеевич Мартынов
Принадлежит: федеральное государственное бюджетное образовательное учреждение высшего образования "Вологодская государственная молочнохозяйственная академия имени Н.В. Верещагина" (ФГБОУ ВО Вологодская ГМХА)

Изобретение относится к области двигателестроения и может быть использовано в поршневых и иных автотракторных двигателях внутреннего сгорания с воспламенением от сжатия (дизеля). Устройство состоит из бака минерального топлива, бака биологического топлива, линии подачи минерального топлива, фильтра грубой очистки минерального топлива, линии подачи биологического топлива, фильтра грубой очистки биологического топлива, подогревателя биологического топлива, входного патрубка минерального топлива, входного патрубка биологического топлива, двухсекционной подкачивающей помпы, смесителя с дозирующим устройством, выходного патрубка смесевого топлива, фильтра тонкой очистки, топливного насоса высокого давления - ТНВД, форсунок, линии слива топлива из ТНВД, линии слива топлива из форсунок, электрическим подогревателем. Использование предлагаемого устройства позволяет применять биологическое топливо для работы дизеля. При этом запуск дизеля может производиться на минеральном топливе, а рабочий процесс производиться либо на смеси, либо на чистом биологическом топливе в зависимости от загрузки двигателя, причем управление дозированием топлива может производиться из кабины водителя вручную или автоматически в зависимости от нагрузки. Ц 1 174573 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) зе «о зева (13) (51) МПК НО2р 19/08 (2006.0Т) Н02М 43/00 (2006.0Т) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2017106504, 27.02.2017 (24) Дата начала отсчета срока действия патента: 27.02.2017 Дата регистрации: 20.10.2017 Приоритет(ы): (22) Дата подачи заявки: 27.02.2017 (45) Опубликовано: 20.10.2017 Бюл. № 29 Адрес для переписки: 160555, г. Вологда, с. Молочное, ул. Шмидта, 2, ФГБОУ ВО Вологодская ГМХА, отдел науки (72) Автор(ы): Зефиров Игорь Владимирович (КО), Мартынов Павел Сергеевич (КП), Паутов Алексей Иванович (КО) (73) Патентообладатель(и): федеральное государственное бюджетное образовательное учреждение высшего образования " ...

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Номер записи: 3
12-04-2012 дата публикации

Method and apparatus for converting diesel engines to blended gaseous and diesel fuel engines

Номер: US20120085326A1
Автор: Feng MO, James A. Stroup, Maurice Schwegman, Ridha Berriche
Принадлежит: BEX AMERICA LLC

The invention presents a method of converting a diesel fueled engine to a blended-fuel engine capable of operating on blended gaseous fuel and diesel fuel, where the diesel fueled engine has a plurality of cylinders, a plurality of diesel fuel injectors for injecting diesel fuel into the cylinders, and an Engine Control Unit (ECU) for controlling at least the operation of the diesel injectors by sending diesel fuel injector control signals to the diesel fuel injectors.

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Номер записи: 4
17-05-2012 дата публикации

Combustion engine air supply

Номер: US20120118727A1
Автор: Brian McDugle
Принадлежит: McDugle Brian

This disclosure relates to a dry cell system for separating water into hydrogen and oxygen in combination with catalytic-type chemicals and materials. The separated hydrogen/oxygen are provided into the air intake system of an internal combustion engine and used therein to greatly improve the operation of said internal combustion engine, both in regards to fuel consumption as well as detrimental exhaust products.

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Номер записи: 5
31-05-2012 дата публикации

Method for selecting between two operation modes in a dual fuel internal combustion engine of the diesel-type and a dual fuel internal combustion engine of the diesel-type operable according to such method

Номер: US20120136556A1
Автор: Ingemar Magnusson
Принадлежит: Volvo Technology AB

A method of selecting between two operation modes in a dual fuel internal combustion engine of the diesel-type is provided. The engine includes a combustion chamber at least partly delimited by a piston, a first fuel supply for a first fuel, the first fuel supply being located in or at the combustion chamber and/or in or at an inlet port thereof, and a second fuel supply for a second fuel. The engine has two different operation modes, both operation modes including the steps of pre-mixing the first fuel in the combustion chamber and/or in the inlet port, compressing the charge containing the first fuel to conditions that allow auto-ignition of the second fuel, performing a first injection of the second fuel into the combustion chamber to initiate auto-ignition of the second fuel, thereby initiating conditions for combustion of the fuel remaining in the combustion chamber after auto-ignition of the second fuel. The first operation mode is distinguished by homogeneous ignition and combustion of the remaining fuel. The second operation mode is distinguished by pre-mixed flame propagation combustion of the remaining fuel. The method includes adjusting the amount of the second fuel injected in the first injection of the second fuel, and/or the timing of the first injection of the second fuel, so as to control the combustion chamber temperature and pressure after auto-ignition of the second fuel such that selection between the first and second operation modes is achieved. A dual fuel internal combustion engine of the diesel-type is also provided.

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Номер записи: 6
09-08-2012 дата публикации

Method and device for identifying the fuel quality in a fuel tank of an internal combustion engine

Номер: US20120198911A1
Автор: Jorg Ballauf
Принадлежит: Audi AG

In a method and a device for identifying the fuel quality in a fuel tank of an internal combustion engine, a reference volume with fuel is provided, which does not intermix with the fuel in the fuel tank when the fuel tank is refilled. After startup of the internal combustion engine, fuel from the fuel tank and from the reference volume is sequentially sucked into the internal combustion engine and parameters which depend from the fuel quality of the sucked-in fuel are measured and evaluated for both the fuel tank and the reference volume. If the parameter differ from one another, it can be concluded that the fuel quality of the fuel in the fuel tank before startup of the internal combustion engine has changed. A quantity (fuel factor) can then be taken into consideration in the mixture pre-control.

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Номер записи: 7
16-08-2012 дата публикации

Dual Fuel Common Rail System And Engine Using Same

Номер: US20120204835A1
Автор: Hoisan Kim, Mark F. Sommars
Принадлежит: Caterpillar Inc

A dual fuel system for an engine includes a plurality of fuel injectors that each include an injector body with a tip component defining a plurality of gas nozzle outlets and a plurality of liquid nozzle outlets positioned for direct injection into one of the engine cylinders. Each of the fuel injectors is fluidly connected to a gaseous fuel common rail through a quill and an outer passage defined between an inner tube and an outer tube. Each of the fuel injectors is fluidly connected to a liquid fuel common rail through the quill and an inner passage defined by the inner tube. Each combination of an inner tube and outer tube extend into the engine housing between the quill and one of the fuel injectors. Each of the inner tubes extends through one of the outer tubes and is compressed between a conical seat on the quill and a conical seat on one of the fuel injectors.

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Номер записи: 8
23-08-2012 дата публикации

Variable gas substitution for duel fuel engine and method

Номер: US20120210988A1
Автор: Martin Willi
Принадлежит: Caterpillar Inc

A system having an internal combustion engine connected to a driven device includes primary and secondary fuel supplies. A primary fuel supply sensor is configured to provide a primary fuel supply signal indicative of a rate of supply of a primary fuel to the engine through the primary fuel supply. A secondary fuel supply sensor is configured to provide a secondary fuel supply signal indicative of a rate of supply of a secondary fuel to the engine through the secondary fuel supply. A power output sensor measures a parameter indicative of a power output of the driven device and provides a power output signal. An electronic controller receives the primary and secondary fuel supply signals and the power output signal, and determines a characteristic of the secondary fuel based on the primary and secondary fuel supply signals and the power output signal.

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Номер записи: 9
06-09-2012 дата публикации

Method for optimising the operation of a thermal engine by determining the proportion of oxygenated compounds in the fuel

Номер: US20120226425A1
Автор: Alain Lunati, Johan Fournel
Принадлежит: SP3H SAS

The invention relates to a method for optimising the operation of a thermal engine having combustion parameters controlled by an electronic housing and at least one engine mapping, characterised in that the method comprises: a step of carrying out a near-infrared spectroscopic analysis of a bio-fuel containing a mixture of alcohols and/or ethers and/or water in order to determine the proportions of water and of at least one other oxygenated compound of the alcohol and/or ether type contained in the bio-fuel; and a step of selecting and/or modifying said mapping on the basis of the analysis result in order to optimise the operation of the thermal engine.

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Номер записи: 10
06-09-2012 дата публикации

Apparatus and Method for Controlling a Multi-Fuel Engine

Номер: US20120226426A1
Автор: Gregory Douglas Horler, Paul Howard Finn
Принадлежит: Intelligent Diesel Systems Ltd

A dual-fuel engine has a primary fuel supply and a secondary fuel supply, the primary and secondary fuels being arranged in use to mix with each other and with air for combustion in one or more cylinders of the engine. The supply of both the primary and secondary fuels is arranged to be actively managed in accordance with a desired engine performance characteristic by an electronic controller. In one arrangement the supply of a primary fuel is arranged to be actively reduced when a secondary fuel is supplied to the engine.

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Номер записи: 11
27-09-2012 дата публикации

Emulsion fuel enabling system and method

Номер: US20120240875A1
Автор: Sui Chuan Tan
Принадлежит: Individual

Disclosed are a system and a method for promoting the formation of the emulsified fuel of a diesel engine. The system includes a viscous oil-water tank; an emulsified fuel mixing device for mixing viscous oil-water with diesel fuel to obtain emulsified fuel; a dual-fuel return fuel emulsification-promoting device connecting to a diesel tank, the emulsified fuel mixing device, and the return fuel pipe and the main fuel pipe of the engine respectively; a heat-exchanging device for heating the emulsified fuel from the dual-fuel return fuel emulsification-promoting device by the cooling water of the engine; a first purifying pipe and a second purifying pipe for purifying the main fuel pipe; and a dual-fuel management device for switching between the diesel fuel supply and the emulsified fuel supply according to the temperature of the cooling water, and after the ignition switch of the engine is closed, for controlling the diesel fuel to clean up the emulsified fuel in the engine, in the main fuel pipe and in the devices. By using the system, the water content of the emulsified fuel can be up to 33% and the diesel engine can keep essentially unchanged power, start easily and run steadily.

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Номер записи: 12
15-11-2012 дата публикации

Dual Fuel Injector Feed Using Differential Length Quills

Номер: US20120285419A1
Автор: David Elliot Hackett, Mark F. Sommars
Принадлежит: Caterpillar Inc

A duel fuel quill assembly and method for assembling such an assembly for an engine are disclosed. The dual fuel quill assembly may comprise a cylinder head including a main bore and a receiving cavity, an outer quill tube, an inner quill tube nested within the outer quill tube, an adapter slidingly received inside the main bore of the cylinder head, and a manifold secured to the adapter. The adapter may be moveable between a first position and a second position and may define an axial bore configured to receive the outer quill tube and the nested inner quill tube. The manifold may define a recess configured to compress the outer and inner quill tubes against the cylinder head cavity when the adapter is in the second position.

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Номер записи: 13
22-11-2012 дата публикации

Diagnostic apparatus for catalyst in fuel-property reforming system

Номер: US20120291424A1
Автор: Hiroyuki Inuzuka, Makoto Miwa
Принадлежит: Denso Corp

A diagnostic apparatus for a catalyst in a fuel-property reforming system includes an inlet-side temperature sensor disposed upstream of the fuel-reforming catalyst and an outlet-side temperature sensor disposed downstream of the fuel-reforming catalyst. In a reforming driving mode, while the EGR valve is opened to recirculate a part of exhaust gas into the intake pipe, a reforming-fuel injector injects a reforming fuel into the EGR gas. A fuel-reforming catalyst reforms the fuel into a fuel having high-combustibility. A differential temperature between a temperature detected by the inlet-side temperature sensor and a temperature detected by the outlet-side temperature sensor is compared with a deterioration-determination threshold, whereby a computer determines whether the fuel-reforming catalyst is deteriorated.

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Номер записи: 14
22-11-2012 дата публикации

Method for biodiesel blending detection based on fuel post-injection quantity evaluation

Номер: US20120291529A1
Автор: Claudio CIARAVINO, Giovanna Massetti
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for detecting the blending level of biodiesel fuel in an internal combustion engine includes setting at least two post injection fuel quantity reference values respectively for known biodiesel blending percentage levels. A post injection fuel quantity value is evaluated and is compared with the at least two post injection fuel quantity reference value. A predetermined correlation set of values between the post injection fuel quantity value and a biodiesel blending level expressed by biodiesel percentage with respect to the petro-diesel is used to determine the biodiesel blending level.

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Номер записи: 15
29-11-2012 дата публикации

Robust estimation of biodiesel blend ratio for alternative fuel combustion

Номер: US20120303245A1
Автор: Ibrahim Haskara, Yue-Yun Wang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method to control an internal combustion engine includes operating the engine with a fuel blend of a first fuel and a second fuel, monitoring a value of a first combustion parameter during engine operation, monitoring a first value for a second combustion parameter during engine operation, determining a second value for the second combustion parameter in accordance with a predetermined correspondence among the first combustion parameter, the second combustion parameter, and a predetermined fuel blend of the first fuel and the second fuel, determining the fuel blend based upon a difference between the first and second values for the second combustion parameter, and controlling the engine based upon the fuel blend.

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Номер записи: 16
06-12-2012 дата публикации

Method and system for powering an otto cycle engine using gasoline and compressed natural gas

Номер: US20120304969A1
Автор: Anton Robert Darcey Farber, Kimberley Allan Young, Michael Theodore Sulatisky, Nathan Oliver Peter, Quan WAN, Sheldon George Hill
Принадлежит: Saskatchewan Research Council

Described are methods and systems for powering an Otto-cycle engine using gasoline and compressed natural gas (CNG). The Otto-cycle engine can be powered by determining a quantity of the gasoline and a quantity of the CNG to deliver to a cylinder of the engine during an engine cycle such that combustion within the cylinder occurs at a pre-determined air-fuel ratio; delivering the quantity of the gasoline to the cylinder via a gasoline injector and delivering the quantity of the CNG to the cylinder via a CNG injector such that the gasoline and the CNG combust during the same combustion event; and combusting the gasoline and the CNG within the cylinder. Delivering CNG and gasoline to the cylinder using separate injectors allows the quantities of CNG and gasoline to vary in response to engine operating conditions, which allows the fuel mixture to be adjusted to satisfy engine power and emissions criteria.

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Номер записи: 17
31-01-2013 дата публикации

Fuel control apparatus for internal combustion engine

Номер: US20130030671A1
Автор: Koichi Hoshi, Takashi Watanabe, Yusuke Nakayama
Принадлежит: Toyota Motor Corp

A fuel control apparatus ( 100 ) for an internal combustion engine in a vehicle, the vehicle provided with: the internal combustion engine ( 200 ) provided with a fuel supply apparatus ( 208, 209 ) capable of supplying, as fuel, first fuel (liquid fuel) and second fuel (CNG) in which amount of a reducing agent in an exhaust air under an rich air-fuel ratio is greater than that in the first fuel; and an exhaust purification apparatus ( 300, 400 ) disposed in an exhaust passage of the internal combustion engine, the fuel control apparatus provided with: a first controlling device for controlling the fuel supply apparatus such that the supply of the fuel is temporarily stopped under a predetermined condition; and a second controlling device for controlling the fuel supply apparatus such that the second fuel is supplied as the fuel and such that an exhaust air-fuel ratio is the rich air-fuel ratio, if the supply of the fuel is restarted from a state in which the supply of the fuel is temporarily stopped.

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Номер записи: 18
28-02-2013 дата публикации

Warranty violation detection system for disallowed fuels

Номер: US20130047963A1
Автор: John J. Horsting
Принадлежит: Continental Automotive Systems US Inc

A fuel supply system ( 10 ) for a vehicle includes a fuel tank ( 12 ) for holding fuel therein. A pump ( 14 ) pumps fuel from the tank. A filter ( 16 ) filters fuel. A fuel rail ( 20 ) receives filtered fuel originating from the pump. A pressure regulator ( 18 ) controls pressure of fuel received by the fuel rail. Fuel injectors ( 24 ) inject fuel, received from the fuel rail, into an internal combustion engine. A fuel detection system ( 28 ) in in the fuel supply system and includes a plurality of detectors ( 30, 30 ′). Each detector is constructed and arranged to be exposed to fuel to detect a distinct chemical element or compound in the fuel.

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Номер записи: 19
18-04-2013 дата публикации

Fuel heating system

Номер: US20130092133A1
Автор: Miguel Verhein
Принадлежит: Individual

The present invention provides a fuel heating system for preheating a vegetable oil based fuel for use in a diesel engine, said fuel heating system comprising a fuel tank ( 1 ), a heating device ( 3 ), a heat carrier arrangement ( 4,6 ) comprising a liquid heat carrier, and a heat exchanger ( 6 ) arranged inside said fuel tank, wherein said heating device is arranged to use vegetable oil based fuel from said fuel tank for heating the heat carrier, said heat carrier arrangement allows transport of hot heat carrier from said heating device to said heat exchanger and transport of cold heat carrier from said heat exchanger back to said heating device, and said heat exchanger is arranged to allow heat transfer from said heat carrier to said vegetable oil based fuel in said fuel tank.

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Номер записи: 20
25-04-2013 дата публикации

Exhaust purification device of internal combustion engine

Номер: US20130101474A1
Автор: Takaaki Itou, Takaaki Kanazawa, Yukihiro Sonoda, Yusuke Nakayama
Принадлежит: Toyota Motor Corp

An ambient NO x adsorption catalyst that can adsorb NO x contained in an exhaust gas in the presence of CO under standard conditions is placed in an engine exhaust gas passage, in an internal combustion engine. Until an engine post-initiation catalyst is activated, the amounts of a high-boiling-point hydrocarbon and an unsaturated hydrocarbon that are contained in the exhaust gas flowing into the catalyst are reduced so that the NO x -adsorbing activity cannot be deteriorated by the adhesion activity of the hydrocarbons while maintaining the CO concentration in the exhaust gas flowing into the catalyst at a level higher than the concentration required for the adsorption of NO x .

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Номер записи: 21
02-05-2013 дата публикации

System and method for reducing mono-nitrogen oxide emissions

Номер: US20130104526A1
Автор: Daniel George Norton, Edward Joseph Hall
Принадлежит: General Electric Co

A system for reducing emissions in an engine is provided. The system includes a primary fuel tank having a primary fuel. The system also includes a secondary fuel tank having a secondary fuel. The system further includes a separator in fluid communication with the secondary fuel tank or the primary fuel tank or both the secondary fuel tank and the primary fuel tank, the engine and a hydrocarbon-selective catalytic reduction subsystem. The subsystem separator separates a less volatile portion of the secondary fuel or the primary fuel from a more volatile portion, said less volatile portion of the secondary fuel or the primary fuel in the separator is routed to the hydrocarbon-selective catalytic reduction subsystem and said more volatile portion of the secondary fuel or the primary fuel in the separator is routed to the engine.

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Номер записи: 22
23-05-2013 дата публикации

Dual Fuel Supply System for a Direct-Injection System of a Diesel Engine with On-Board Mixing

Номер: US20130125867A1
Автор: Krug Uwe Alexander
Принадлежит: DGC INDUSTRIES PTY LTD

The present invention is directed to a dual fuel supply system for supplying fuel to a direct-injection system of a diesel engine. The dual fuel supply system includes a diesel supply system to supply diesel to the direct-injection system; and a mixed fuel supply system that is operatively able to supply a liquid fuel premixture of diesel and liquefied gaseous fuel to the direct-injection system at a supply pressure within a fuel demand pressure range of the direct-injection system and at a corresponding temperature range that retains the fuel premixture below its vapor temperature as it flows through the fuel path of the direct-injection system and the diesel engine. The dual fuel supply system is configured to permit selective change over between the diesel supply system and the mixed fuel system to supply the direct-injection system selectively with either diesel or liquid fuel premixture respectively. 123-. (canceled)24. A dual fuel supply system for supplying fuel to a direct-injection system of a diesel engine , the dual fuel supply system including:a diesel supply system to supply diesel to the direct-injection system; anda mixed fuel supply system that is operatively able to supply a liquid fuel mixture of diesel and liquefied gaseous fuel to the direct-injection system at a supply pressure within a fuel demand pressure range of the direct-injection system and at a corresponding temperature range that retains the fuel mixture below its vapor temperature as it flows through the fuel path of the direct-injection system and the diesel engine, wherein mixed fuel supply system is configured to regulate the supply pressure of the liquid fuel mixture within a pressure range towards a high end of the fuel demand pressure of the direct-injection system and configured to supply the fuel mixture at a supply temperature that is sufficiently lower than the vapor temperature of the liquid fuel mixture at the supply pressure to compensate for heat that is introduced into ...

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Номер записи: 23
20-06-2013 дата публикации

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

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

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

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Номер записи: 24
20-06-2013 дата публикации

Variable-ignition diesel-gasoline dual fuel powered combustion engine, system, and method for controlling of the same

Номер: US20130158837A1
Автор: Dae Choi, Hyeungwoo Lee, Hyunsung Jung, Minyoung Ki, Seungil PARK, Yohan Chi
Принадлежит: Hyundai Motor Co

A variable ignition diesel-gasoline dual fuel powered combustion engine can select spark ignition (SI) or compression ignition (DI) depending on the engine's operating range. The engine may include a cylinder block formed of at least one cylinder each being connected to an air intake manifold supplying air or a gasoline fuel-mixed air and an exhaust manifold exhausting an exhaust gas after combustions; and an ECU controlling the combustion modes. The ECU is configured to judge the engine's operating ranges of an engine depending on the speed and load of the engine, and when the range is the high load range, only the diesel fuel is combusted, and when the range is the low load range, only the gasoline fuel is combusted, and when the range is between the high load range and the low load range, the diesel and gasoline fuels are mixed and combusted.

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Номер записи: 25
20-06-2013 дата публикации

METHOD FOR OPERATING A MULTI-FUEL INTERNAL COMBUSTION ENGINE BY MEANS OF TWO CONTROL UNITS, AND MULTI-FUEL INTERNAL COMBUSTION ENGINE WHICH OPERATES IN ACCORDANCE WITH THE METHOD ACCORDING TO THE INVENTION

Номер: US20130158839A1
Автор: Striegel Werner
Принадлежит: ROBERT BOSCH GMBH

A method for operating a multi-fuel internal combustion engine in which a plurality of control units are used. The system is easily scalable and adaptable to internal combustion engines with different numbers of cylinders, wherein the number of cylinders is not limited by the control unit structure. 1101212103121031232401210. A method for operating a dual-fuel internal combustion engine () comprising a first control unit (SG) and a further control unit (SG) , wherein the control units (SG , SG) are connected to one another of a broadband communication connection () , and wherein a bidirectional transmission of data takes place between the control units (SG , SG) via the broadband communication connection () , characterized in that each control unit (SG , SG) controls the operation of a plurality of injectors () and gas valves () of at least one cylinder () of the internal combustion engine ().2123. The method according to claim 1 , characterized in that more than two control units (SG claim 1 , SG claim 1 , SG) are provided.3324010123. The method according to claim 1 , characterized in that the injectors () and gas valves () of each cylinder of the internal combustion engine () are assigned precisely one control unit (SG claim 1 , SG claim 1 , SG).41231210. The method according to claim 1 , characterized in that each control unit (SG claim 1 , SG claim 1 , SG) controls the injection of one or two fuels of at least one cylinder () of the internal combustion engine ().512310. The method according to claim 1 , characterized in that the control units (SG claim 1 , SG claim 1 , SG) are active throughout the entire operating duration of the internal combustion engine ().6123. The method according to claim 1 , characterized in that one control unit (SG) performs the function of a “master” and the other control units (SG claim 1 , SG) perform the function of a “slave”.7101324012323240456. The method according to claim 6 , characterized in that claim 6 , in the case of an ...

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Номер записи: 26
27-06-2013 дата публикации

FUEL SUPPLY SYSTEM AND A VEHICLE

Номер: US20130160745A1
Автор: KAWAGUCHI Masayoshi, KUDO Hirotsugu
Принадлежит: HONDA MOTOR CO., LTD.

A raw fuel tank is arranged in a lower space of a front floor panel A part of or all of other component parts of a fuel supply system are accumulated on the rear floor panel and arranged. All of a separator all of a vacuum pump and all of a canister are each hidden by a first fuel tank with respect to an upper stream side of an air path. The first fuel tank is arranged so as to function as a windbreak member or a shield member at least partially blocking each of the separator the vacuum pump and the canister from air flowing the air path. 1. A fuel supply system mounted in a vehicle and configured to supply a first fuel which is separated from a raw fuel and containing more high-octane number component than the raw fuel , and the raw fuel or a second fuel which is separated from the raw fuel and containing more low-octane number component than the raw fuel , selectively or by a specified mixing ratio to an internal combustion engine simultaneously , comprising:a separator which is sectioned to a high pressure chamber and a low pressure chamber via a separation membrane, and configured to separate the raw fuel into the first fuel and the second fuel by the separation membrane in a state the low pressure chamber is maintained in a lower pressure than the high pressure chamber, and then to collect the first fuel from the low pressure chamber side and to collect the second fuel from the high pressure chamber side;a condenser which is connected to the low pressure chamber of the separator;a first fuel tank connected to the condenser and configured to store the first fuel; anda vacuum pump configured to depress an inner portion of the condenser;wherein the separator and the first fuel tank are accumulated and are configured to be arranged in an air path of the vehicle so that a part of or a total of the separator is hidden by the first fuel tank with respect to an upper stream side of the air path.2. The fuel supply system according to claim 1 , wherein the separator ...

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Номер записи: 27
04-07-2013 дата публикации

Control apparatus and method for an internal combustion engine

Номер: US20130173140A1
Автор: Hiroshi Sawada, Toru Kidokoro, Yusuke Nakayama
Принадлежит: Toyota Motor Corp

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

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Номер записи: 28
29-08-2013 дата публикации

CONTROLLING MULTIFUEL COMMON RAIL ENGINES

Номер: US20130226438A1
Автор: Ritscher Bert, Schroeder Alan
Принадлежит: CATERPILLAR MOTOREN GMBH & CO. KG

A method for controlling an injection process of an engine that is configured to operate with multiple types of fuels is disclosed. The method may comprise the steps of receiving a fuel amount request indicating a requested amount of fuel to be delivered, receiving at least one physical parameter indicating the type of fuel provided to operate the engine, providing a map comprising a control parameter in dependence of the physical parameter, reading the control parameter associated with the received physical parameter, determining an injection parameter for the injection process based on the control parameter and the requested amount of fuel, and operating the engine based on the injection parameter. 1. A method for controlling an injection process of an engine configured to run with multiple types of fuels , the method comprising:receiving a fuel amount request indicating a requested amount of fuel to be delivered;receiving at least one physical parameter indicating the type of fuel provided to operate the engine;providing a map comprising a control parameter for a range of values of the at least one physical parameter;reading the control parameter associated with the received at least one physical parameter from the map;determining an injection parameter for the injection process based on the control parameter and the requested amount of fuel; andoperating the engine based on the determined injection parameter.2. The method of claim 1 , wherein receiving the at least one physical parameter includes receiving the fuel temperature and/or the fuel viscosity of the fuel ready for injection.3. The method of claim 1 , further comprising measuring the at least one physical parameter at a fuel filter and/or the injection system of the engine.4. The method of claim 1 , wherein providing a map comprises providing a cranking fuel limitation map containing claim 1 , as a control parameter claim 1 , maximum fuel amount values for a range of values of the physical parameter ...

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Номер записи: 29
12-09-2013 дата публикации

High-pressure fuel pump for an internal combustion engine with direct injection

Номер: US20130233284A1
Автор: Andreas Thaysen, Sevket Celovic
Принадлежит: VOLKSWAGEN AG

A high-pressure fuel pump for an internal combustion engine with direct injection of fuel into at least one combustion chamber of the internal combustion engine is provided. The high-pressure fuel pump includes a low-pressure connection for low-pressure fuel, wherein the low-pressure connection supplies low-pressure fuel to the high-pressure fuel pump, a low-pressure fuel supply chamber, a pump element and a high-pressure connection for discharging fuel from the high-pressure fuel pump. The low-pressure connection, the low-pressure fuel supply chamber, the pump element, and the high-pressure connection are provided in succession in a flow direction of the fuel. A medium-pressure fuel connection opens into a medium-pressure fuel supply chamber for supplying medium-pressure fuel to the high-pressure fuel pump. A fuel switching valve selectively connects the low-pressure fuel supply chamber or the medium-pressure fuel supply chamber in a fluid-conducting manner to the pump element.

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Номер записи: 30
12-09-2013 дата публикации

Method and system for estimating fuel composition

Номер: US20130238217A1
Автор: Adam Nolan, Andrew Paul Chee Aun Wong, Jamie Terence Slaymaker, Phuoc (Bui) Buiquang
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for operating a fuel system configured to deliver a gaseous fuel to an engine. Following tank refilling, the fuel composition is selectively updated based on fuel tank pressure, temperature, and air content data. When the engine is subsequently restarted, the fuel rail is primed for a duration based on the updated composition.

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Номер записи: 31
26-09-2013 дата публикации

Exhaust gas purification system for an internal combustion engine

Номер: US20130247546A1
Автор: Masahiko Masubuchi
Принадлежит: Toyota Motor Corp

The present invention is intended to suppress, in an exhaust gas purification system for an internal combustion engine capable of mixing and combusting liquid fuel and compressed natural gas, an excessive rise in temperature of an exhaust gas purification device at the time when the exhaust gas purification device is caused to regenerate. In the exhaust gas purification system for an internal combustion engine according to the present invention, when the liquid fuel and the compressed natural gas are caused to mix and combust in the internal combustion engine at the time of regenerating the exhaust gas purification device, an amount of HC to be supplied to the exhaust gas purification device from an HC supply device is decreased in comparison with the time when only the liquid fuel is caused to combust in the internal combustion engine.

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Номер записи: 32
03-10-2013 дата публикации

System and method for closing a tank valve

Номер: US20130255636A1
Автор: Ross Dykstra Pursifull
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for closing a storage tank valve in response to leaks in a fuel line or fuel rail and emptying the tank of a vehicle when no leaks are detected is described. The method includes comparing a tank pressure to a fuel line or fuel rail pressure in order to detect leaks therein and further includes using a dedicated tank pressure sensor to measure the gaseous pressure of the storage tank, and thereby the amount of fuel remaining. In response to leaks in the fuel system, a controller may close an electronic solenoid valve, which reinforces a mechanical excess flow valve, to block the flow of fuel and prevent fuel loss from the gaseous storage tank.

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Номер записи: 33
10-10-2013 дата публикации

FUEL SUPPLY DEVICE

Номер: US20130263825A1
Автор: CHISHIMA Hiroshi, KAWAGUCHI Masayoshi, KUDO Hirotsugu, SHIGETOYO Kenji
Принадлежит: HONDA MOTOR CO., LTD.

A device capable of supplying an internal combustion engine with fuel while improving the utilization rate of vaporized fuel. A temporary transition from a third state (primary recovery path FL closed, secondary recovery path FL closed, second vaporized fuel path VL closed, condenser decompressed) to a fourth state (primary recovery path FL closed, secondary recovery path FL closed, second vaporized fuel path VL open, condenser decompressed) is achieved. This temporarily increases an internal air pressure P of a condenser and the kinetic energy of a vaporized fuel V leaked out of a first fuel tank through the second vaporized fuel path VL is able to sweep away a first fuel F in a liquid state accumulated in a vacuum pump to the first fuel tank 1. A fuel supply device which supplies an internal combustion engine with a first fuel which contains a larger number of high octane number components than a raw fuel and a second fuel which contains a larger number of low octane number components than the raw fuel or the raw fuel selectively or with a specified mixing ratio simultaneously , where the first fuel and the second fuel are separated from the raw fuel , the device comprising:a raw fuel tank storing the raw fuel;a separator configured to separate the raw fuel supplied from the raw fuel tank into the first fuel and the second fuel;a condenser configured to condense the first fuel which is separated by the separator and supplied from the separator through a primary recovery path;a first fuel tank configured to store the first fuel which is condensed by the condenser and supplied from the condenser through a secondary recovery path;a vacuum pump which is provided on a first vaporized fuel path coupling the condenser to the first fuel tank and is configured to suck a vaporized fuel generated by vaporization of the first fuel from the condenser and thereafter to supply the vaporized fuel to the first fuel tank;an opening/closing mechanism which opens and closes each of ...

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Номер записи: 34
14-11-2013 дата публикации

Method Of Controlling Fuel Composition Learning

Номер: US20130298653A1
Автор: Hirokazu Toyoshima, Kenji David Matsuura, Todd Robert Luken
Принадлежит: Honda Motor Co Ltd

A method of controlling fuel composition learning includes steps of monitoring changes in airflow within an engine to determine steady state conditions. The method further includes steps of initiating a fuel composition learning process during steady state conditions. A current fuel component concentration factor is updated using a temporary fuel component concentration factor. The temporary fuel component concentration factor is calculated as the average of an air/fuel correction factor. Once the current fuel component concentration factor is updated, the temporary fuel component concentration factor is reset. The air/fuel correction factor is reset to reflect any difference that existed between the temporary fuel component concentration factor and the air/fuel correction factor at the update time.

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Номер записи: 35
21-11-2013 дата публикации

Combustion Control via Homogeneous Combustion Radical Ignition (HCRI) or Partial HCRI in Cyclic IC Engines

Номер: US20130306045A1
Автор: David A. Blank
Принадлежит: Individual

A process for enhancement of combustion control in rotary and reciprocating IC engines for improving fuel efficiency by enabling leaner combustion at higher compression ratios. Embodiments supporting this process employ a fluid of higher heat of vaporization and higher volatility but lower ignitability than the fuel to increase the compression ratio required for self ignition. These have secondary chambers in a cylinder periphery for radical ignition (“RI”) species generation in an earlier cycle for use in a later cycle. These chambers communicate with a main chamber via conduits. Measures regulate the RI species generated and provided to the main chamber. These species then alter the dominant chain-initiation reactions of the main combustion ignition mechanism by lowering the heat and the fuel ratios required for combustion. This improves combustion in radical ignition engines and radical augmented spark and compression ignition engines.

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Номер записи: 36
19-12-2013 дата публикации

CONTROL SYSTEM AND METHOD

Номер: US20130338901A1
Автор: Daum Wolfgang, KUMAR Ajith Kuttannair
Принадлежит: GENERAL ELECTRIC COMPANY

A system is provided for controlling a powered unit having an engine configured to operate using a plurality of fuel types each in a corresponding fuel tank. The system includes a controller operable to transmit a first set of control signals including a first set of valve signals to the each fuel tank based at least in part on a first stored engine operating profile to control amounts of fuel from each fuel tank to the engine. The controller can transmit a second set of control signals including a second set of valve signals to each fuel tank based at least in part on a second stored engine operating profile to control amounts of fuel from each fuel tank to the engine. Further, the controller can switch, by transmitting either the first set of control signals or the second set of control signals, between a first operating condition associated with a first external domain and a second condition associated with a second external domain. The first operating condition is associated with the first stored engine operating profile, and the second operating condition is associated with the second stored engine operating profile. 1. A system for controlling a powered unit having an engine configured to operate using a plurality of fuel types each in a corresponding fuel tank , the system comprising:a controller operable to:transmit a first set of control signals including a first set of valve signals to each fuel tank based at least in part on a first stored engine operating profile to control amounts of fuel from each fuel tank to the engine;transmit a second set of control signals including a second set of valve signals to each fuel tank based at least in part on a second stored engine operating profile to control the amounts of fuel from each fuel tank to the engine; andswitch, by transmitting either the first set of control signals or the second set of control signals, between a first operating condition associated with a first external domain and a second condition ...

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Номер записи: 37
26-12-2013 дата публикации

Approach for controlling fuel flow with alternative fuels

Номер: US20130340715A1
Автор: Ross Dykstra Pursifull
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A fuel pump temperature is regulated by selectively directing liquid fuel to an expansion section to evaporate the liquid fuel and create a drop in temperature to thermally cool the fuel pump.

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Номер записи: 38
26-12-2013 дата публикации

FUEL SUPPLY CONTROL SYSTEM FOR MULTIFUEL INTERNAL COMBUSTION ENGINE

Номер: US20130345950A1
Автор: Goto Isamu, Masubuchi Masahiko
Принадлежит:

An object of the present invention is to restrain the emission amount of unburned fuel components while restraining the consumption of fuel with relatively high ignitability in a multi-fuel internal combustion engine, The present invention resides in such a fuel supply control system for a multi-fuel internal combustion engine that a first fuel with relatively high ignitability and a second fuel with relatively low ignitability are used as fuels and the first fuel is used as an ignition source to mixedly combust. the first fuel and the second fuel, wherein a supply amount Qd of the first fuel is adjusted on the basis of a difference ΔRH between a first heat generation rate RHd which is a heat generation rate given when assuming that only the first fuel is combusted and an actual heat generation rate RHa which is a heat generation rate given when the fuels are actually combusted (S to S), 1. A fuel supply control system for a multi-fuel internal combustion engine in which a first fuel with relatively high ignitability and a second fuel with relatively low ignitability are used as fuels and the first fuel is used as an ignition source to mixedly combust the first fuel and the second fuel , the fuel supply control system for the multi-fuel internal combustion engine comprising:a first fuel supply unit which supplies the first fuel to the multi-fuel internal combustion engine;a second fuel supply unit which supplies the second fuel to the multi-fuel internal combustion engine;a first heat generation rate estimating unit which estimates a first heat generation rate, the first heat generation rate being a heat generation rate given when assuming that only the first fuel supplied from the first fuel supply unit is combusted in the multi-fuel internal combustion engine;an actual heat generation rate calculating unit which calculates an actual heat generation rate, the actual heat generation rate being a heat generation rate given when the fuels are actually combusted in the ...

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Номер записи: 39
30-01-2014 дата публикации

Low Temperature Dual Fuel Combustion Utilizing Diesel and Methanol Fuels

Номер: US20140026853A1
Автор: Charles L. Gray, Jr., Matthew J. Brusstar, Michael Prince
Принадлежит: Individual

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

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Номер записи: 40
30-01-2014 дата публикации

ADSORBED NATURAL GAS FUEL SYSTEM FOR HYBRID MOTOR VEHICLES

Номер: US20140026868A1
Автор: Dolan William, Lack Adam Cyril, Santamaria Michael
Принадлежит: BASF CORPORATION

Disclosed are methods and systems for fueling hybrid vehicles by placing as part of the vehicle fuel system a tank containing a natural gas adsorbent where the natural gas is initially stored in said tank at a pressure of 700 psia or less. 1. A bi-fuel vehicle comprising:an internal combustion engine powered by both gasoline fuel and natural gas fuel supplied at a minimum natural gas rail pressure;a natural gas tank containing a natural gas adsorbent located on the vehicle, wherein the tank is full at a natural gas pressure in the range of 100 to 700 psia, the natural gas adsorbed on the adsorbent and the natural gas tank in flow communication with the engine by a natural gas fuel line;a gasoline tank containing gasoline in flow communication with the engine by a gasoline fuel line;a control system that regulates flow of the gasoline and the natural gas to the engine; anda compressor in flow communication with the natural gas tank and natural gas fuel line that maintains pressure of the natural gas at or above the minimum natural gas rail pressure when the engine is running.2. The bi-fuel vehicle of claim 1 , further comprising a natural gas fill line in flow communication with the natural gas tank and the compressor.3. The bi-fuel vehicle of claim 1 , wherein the natural gas tank contains a quantity of natural gas to provide a range of operation of the vehicle of 100 miles or less.4. The bi-fuel vehicle of claim 3 , wherein the natural gas tank contains a quantity of natural gas to provide a range of operation of the vehicle of 50 miles or less.5. The bi-fuel vehicle of claim 1 , wherein the control system comprises a switch control module that changes fuel supplied to the engine from natural gas fuel to gasoline fuel.6. The bi-fuel vehicle of claim 5 , wherein the control system comprises a sensor that sends a signal to the control system to activate the switch control module based on a predetermined event.7. The bi-fuel vehicle of claim 6 , wherein the ...

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Номер записи: 41
06-02-2014 дата публикации

Fuel rail assembly including fuel separation membrane

Номер: US20140034021A1
Автор: Mark Allen Dearth, Ross Dykstra Pursifull, Tom G. Leone
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

As one example, a fuel rail assembly for supplying pressurized fuel to a plurality of cylinders of an engine is provided. The fuel rail assembly includes a fuel rail housing defining an internal fuel rail volume having at least a first region and a second region; a fuel separation membrane element disposed within the fuel rail housing that segregates the first region from the second region. The membrane element can be configured to pass a first component of a fuel mixture such as an alcohol through the membrane element from the first region to the second region at a higher rate than a second component of the fuel mixture such as a hydrocarbon. The separated alcohol and hydrocarbon components can be provided to the engine in varying relative amounts based on operating conditions.

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Номер записи: 42
13-02-2014 дата публикации

Fuel supply apparatus, computer-readable storage medium, and method of controlling fuel supply apparatus

Номер: US20140041642A1
Автор: Daiko Tsutsumi, Hiroshi Chishima, Hirotsugu Kudo, Kenji SHIGETOYO, Masayoshi Kawaguchi
Принадлежит: Honda Motor Co Ltd

A fuel supply apparatus includes a raw-fuel tank, a separator, a heater, a cooler, and an adjustment mechanism. The raw-fuel tank is to store raw fuel. The separator is to separate the raw fuel into a first fuel and a second fuel. The adjustment mechanism is to perform adjustment of at least one of a first factor, a second factor, and a third factor so that a first temperature of the separator is set to within a predetermined first temperature range or is set to a first target temperature. The first factor includes a flow rate of the raw fuel. The second factor includes an amount by which the raw fuel is heated in the heater. The third factor includes an amount by which the second fuel is cooled in the cooler.

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Номер записи: 43
27-02-2014 дата публикации

System for supplying fuel to high-pressure natural gas injection engine having excess evaporation gas consumption means

Номер: US20140053600A1
Автор: Dong Kyu Choi, Hyun Jun Shin, Je Heon Jung, Jung Han Lee, Seung Kyo Jung, Sung Jun Lee
Принадлежит: Daewoo Shipbuilding and Marine Engineering Co Ltd

Provided is a fuel supply system for a high-pressure natural gas injection engine. The fuel supply system includes: a BOG compression unit configured to receive BOG, which is generated in a storage tank, from the storage tank and compress the received BOG to a pressure of 12 to 45 bara; a reliquefaction apparatus configured to receive and liquefy the BOG compressed by the BOG compression unit; a high-pressure pump configured to compress the BOG liquefied by the reliquefaction apparatus; a high-pressure gasifier configured to gasify the BOG compressed by the high-pressure pump and supply the gasified BOG to the high-pressure natural gas injection engine; and an excess BOG consumption unit configured to consume excess BOG corresponding to a difference between an amount of BOG generated in the storage tank and an amount of BOG required as fuel for the high-pressure natural gas injection engine.

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Номер записи: 44
06-03-2014 дата публикации

METHOD FOR MODIFYING A VEHICLE TO RECEIVE AND UTILIZE A SECONDARY FUEL

Номер: US20140060492A1
Автор: BENEDICT PETER, WOOLVETT WALTER ALBERT
Принадлежит:

A method for modifying a vehicle to receive and utilize a secondary fuel is provided, as well as the modified vehicle. The vehicle prior to modification can use a primary fuel, and comprises signal transmitter for supplying a signal having a pulse width that varies to vary the quantity of primary fuel provided. The method involves installing a secondary fuel supply module for supplying to the engine a secondary fuel different from the primary fuel, the secondary fuel supply module comprising a secondary fuel injector. The secondary fuel supply module is configured such that the signal transmitter transmits the signal having the pulse width with the duration to the secondary fuel injector to control the secondary fuel injector to provide a suitable quantity of fuel to the engine. 2. The method of claim 1 , wherein step c) further comprises the steps ofi) installing the secondary fuel supply module at an initial adjustment setting to provide an initial secondary fuel supply rate such that when the signal is received by the secondary fuel injector for the duration of the pulse width, the secondary fuel injector is maintained in the secondary fuel supply mode to provide to the engine an initial amount of the secondary fuel;ii) determining if the initial amount of the secondary fuel is the amount of the secondary fuel to be supplied to the engine to satisfy the engine fuel demand; and leaving the secondary fuel supply module at the initial adjustment setting, otherwise', 'adjusting the secondary fuel supply module to the selected adjustment setting to provide the selected secondary fuel supply rate., 'iii) if the initial amount of the secondary fuel is the amount of the secondary fuel to be supplied to the engine to satisfy the engine fuel demand, then'}3. The method of claim 1 , wherein the primary fuel is gasoline.4. The method of claim 1 , wherein the secondary fuel is one of propane and natural gas.5. The method of claim 1 , wherein the vehicle prior to modification ...

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Номер записи: 45
06-03-2014 дата публикации

Fuel heating system

Номер: US20140060501A1
Автор: Miguel Verhein
Принадлежит: Revego Ltd

The present invention provides a fuel heating system for preheating a vegetable oil based fuel for use in a diesel engine, said fuel heating system comprising a fuel tank ( 1 ), a heating device ( 3 ), a heat carrier arrangement ( 4,6 ) comprising a liquid heat carrier, and a heat exchanger ( 6 ) arranged inside said fuel tank, wherein said heating device is arranged to use vegetable oil based fuel from said fuel tank for heating the heat carrier, said heat carrier arrangement allows transport of hot heat carrier from said heating device to said heat exchanger and transport of cold heat carrier from said heat exchanger back to said heating device, and said heat exchanger is arranged to allow heat transfer from said heat carrier to said vegetable oil based fuel in said fuel tank.

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Номер записи: 46
13-03-2014 дата публикации

Limp home capable dual fuel engine and machine using same

Номер: US20140069386A1
Автор: Alan R. Stockner, Brian K. Garman, Dana R. Coldren, Gregg W. Uhland, Joshua W. Steffen
Принадлежит: Caterpillar Inc

A dual fuel engine powers a machine by burning natural gas and liquid diesel fuel. When operating in a low load mode, some of the engine cylinders are fueled with a high ratio of diesel/gas, and the remaining cylinders are unfueled. When operating in a high load mode, all of the engine cylinders are fueled with a low ratio of diesel/gas. When operating in a limp home mode, the fuel injectors are configured to inject only diesel fuel into all of the plurality of engine cylinders.

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Номер записи: 47
13-03-2014 дата публикации

Gas substitution control system and method for bi-fuel engine

Номер: US20140074380A1
Автор: C. Ross Fisher, David G. Fisher, Galina LAUR, George A. Mansfield, Helal Zahir, Hillary H. Grimes, Iii, Kristian W. Yates
Принадлежит: Continental Controls Corp

A gas substitution ratio control system varies natural gas flow to a bi-fuel engine based on detected diesel flow to maintain a desired gas substitution ratio (GSR), without any requirement to sense engine load. In other words, GSR is controlled without monitoring engine load level. In one system, an engine is first calibrated to map actual gas and diesel flows to provide the correct GSR for all engine loads. The calibration data is then stored and diesel flow rate is monitored. The current detected diesel flow rate is used to determine the required gas flow rate for correct GSR. Gas flow to the engine is then adjusted to correspond to the required gas flow rate. Other embodiments meter gas to maintain the diesel flow rate at the same minimum level for all loads, or meter gas and diesel fuel flows to match a map of the limiting fuel energy based GSR (gas fuel energy rate/total fuel energy rate) at all loads for each engine model.

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Номер записи: 48
20-03-2014 дата публикации

Gaseous fuel rail depressurization during inactive injector conditions

Номер: US20140081565A1
Автор: Ross Dykstra Pursifull
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for depressurizing a fuel pressure regulator during engine cold start and varying fuel injection pressure after cold start in a gaseous-fueled vehicle. A mechanical pressure regulator may be modified to include valves which may be controlled to depressurize a reference chamber of the regulator when gaseous fuel injection is inactive (e.g., before and during cold start), and to regulate the pressure of gaseous fuel to varying pressures based on electronic pressure feedback and engine operating conditions when gaseous fuel injection is active. In one example, the pressure in the reference chamber of a pressure regulator may be varied by controlling valves to flow gaseous fuel into the reference chamber, and then controlling the valves to exhaust the gaseous fuel from the reference chamber, for example to a fuel vapor storage canister.

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Номер записи: 49
01-01-2015 дата публикации

Multi-fuel system for internal combustion engines

Номер: US20150000638A1
Автор: Serge V. Monros
Принадлежит: Individual

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

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Номер записи: 50
07-01-2016 дата публикации

SYSTEM AND METHOD FOR DUAL FUEL ENGINES

Номер: US20160003170A1
Автор: Reynolds David J., zur Loye Axel O.
Принадлежит: CUMMINS IP, INC.

Disclosed herein is a system for managing combustion in an internal combustion engine includes a detection module that determines a combustion condition of the internal combustion engine. The combustion condition includes one of a first combustion condition or second combustion engine. The system also includes a fuel table module that receives the combustion condition and selects an engine operating request based on data in a first fuel table when the combustion condition is the first combustion condition, and data in a second fuel table when the combustion condition is the second combustion condition. The system additionally includes an engine control module that receives the engine operating request and generates engine operating commands based on the engine operating request. 1. A system for managing combustion in an internal combustion engine , comprising:a detection module that determines a combustion condition of the internal combustion engine, the combustion condition comprising one of a first combustion condition or second combustion condition;a fuel table module that receives the combustion condition and selects an engine operating request based on data in a first fuel table when the combustion condition is the first combustion condition, and data in a second fuel table when the combustion condition is the second combustion condition; andan engine control module that receives the engine operating request and generates engine operating commands based on the engine operating request.2. The system of claim 1 , wherein the first combustion condition comprises combustion of only a first fuel claim 1 , and the second combustion condition comprises combustion of a combination of the first fuel and a second fuel.3. The system of claim 2 , wherein the first fuel comprises a liquid fuel and the second fuel comprises a gaseous fuel.4. The system of claim 2 , wherein the second combustion condition comprises a substitution rate of the second fuel.5. The system of claim ...

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Номер записи: 51
04-01-2018 дата публикации

Charge-flow adjustment in closed-loop exhaust temperature control on dual fuel engines

Номер: US20180003118A1
Автор: Axel O. zur Loye, Christopher POLLITT, Timothy O. Lutz
Принадлежит: Cummins Inc

Methods and systems of controlling operation of a dual fuel engine are provided, comprising determining a target exhaust temperature, sensing an actual exhaust temperature, determining an exhaust temperature deviation by comparing the actual exhaust temperature to the target exhaust temperature, comparing the exhaust temperature deviation to a threshold, adjusting at least one of an intake throttle, a wastegate, a compressor bypass valve, an exhaust throttle, a VGT and engine valve timing when the exhaust temperature deviation exceeds the threshold to control charge-flow to the engine, and continuing the adjusting until the exhaust temperature deviation is less than the threshold.

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Номер записи: 52
02-01-2020 дата публикации

DIFFERENTIAL CYLINDER BALANCING FOR INTERNAL COMBUSTION ENGINE

Номер: US20200003131A1
Автор: Klingbeil Adam Edgar
Принадлежит:

A method of adjusting operation of an internal combustion engine includes injecting fuel into cylinders of the internal combustion engine (first fuel operation); obtaining a first fuel exhaust temperature profile during the first fuel operation; injecting two fuels into the cylinders in a duel fuel operation; obtaining a duel fuel exhaust temperature profile; and adjusting the injection quantity and/or an injection timing of one fuel in a cylinder(s), based on a difference between the first fuel exhaust temperature profile and the duel fuel exhaust temperature profile. Other methods of operating with single fuel and using sensors other than exhaust temperature sensors are disclosed. 1. A method of adjusting operation of an internal combustion engine , the method comprising:injecting a first fuel into a plurality of cylinders of the internal combustion engine in a first fuel operation;calculating a first exhaust temperature profile based on the first fuel operation; injecting a second fuel and the first fuel into the plurality of cylinders of the internal combustion engine in a duel fuel operation;calculating a duel fuel exhaust temperature profile based on the duel fuel operation; andadjusting at least one engine operating parameter in the duel fuel operation based on differentials between individual cylinder exhaust temperatures and a mean exhaust temperature of one or more exhaust temperature profiles.2. The method of claim 1 , wherein the first fuel comprises diesel.3. The method of claim 1 , wherein calculating the first fuel exhaust temperature profile comprises collecting an exhaust temperature from each of the plurality of cylinders.4. The method of claim 1 , wherein calculating the duel fuel exhaust temperature profile claim 1 , comprises collecting an exhaust temperature from each of the plurality of cylinders.5. The method of claim 1 , wherein calculating the first fuel exhaust temperature profile claim 1 , comprises collecting an exhaust temperature from ...

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Номер записи: 53
02-01-2020 дата публикации

FUEL SUPPLY VALVE FOR A SLURRY FUEL INJECTOR VALVE

Номер: US20200003132A1
Автор: IMPERATO Matteo, REEVE Tim
Принадлежит:

A fuel supply valve for a slurry fuel injector valve, the fuel supply valve comprising: a fuel inlet for fluid communication with a slurry fuel reservoir; a fuel outlet for fluid communication with a nozzle of the fuel injector valve; a pump chamber port for fluid communication with a pump chamber of the fuel injector valve; and a valve gate moveable between a first position, at which the fuel inlet is in fluid communication along a first slurry fuel flow path with the pump chamber port, and a second position, at which the fuel outlet is in fluid communication along a second slurry fuel flow path with the pump chamber port; wherein the valve gate is operable with a valve actuation liquid from an engine. 1. A fuel supply valve for a slurry fuel injector valve , the fuel supply valve comprising:a fuel inlet for fluid communication with a slurry fuel reservoir;a fuel outlet for fluid communication with a nozzle of the fuel injector valve;a pump chamber port for fluid communication with a pump chamber of the fuel injector valve; anda valve gate moveable between a first position, at which the fuel inlet is in fluid communication along a first slurry fuel flow path with the pump chamber port, and a second position, at which the fuel outlet is in fluid communication along a second slurry fuel flow path with the pump chamber port;wherein the valve gate is operable with a valve actuation liquid from an engine.2. The fuel supply valve according to claim 1 , comprising a valve actuation liquid chamber claim 1 , wherein valve actuation liquid is receivable into the valve actuation liquid chamber to exert a force on the valve gate to drive the valve gate between the first and second positions.3. The fuel supply valve according to claim 2 , wherein valve actuation liquid is receivable into the valve actuation liquid chamber to exert a force on the valve gate to drive the valve gate towards the second position.4. The fuel supply valve according to claim 2 , wherein the valve ...

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Номер записи: 54
02-01-2020 дата публикации

FUEL INJECTION VALVE

Номер: US20200003133A1
Автор: REEVE Tim
Принадлежит:

Disclosed is a slurry fuel injector valve, comprising: a fuel outlet valve through which slurry fuel is able to exit the slurry fuel injector valve towards a combustion chamber of an engine; a pump cavity; a pump element that divides the pump cavity into a pump chamber and an actuation chamber; a fuel conduit through which slurry fuel is flowable from the pump chamber to the fuel outlet valve; and an actuation fluid conduit through which actuation fluid is flowable from the actuation chamber to the fuel outlet valve. 1. A slurry fuel injector valve , comprising:a fuel outlet valve through which slurry fuel is able to exit the slurry fuel injector valve towards a combustion chamber of an engine;a pump cavity;a pump element that divides the pump cavity into a pump chamber and an actuation chamber;a fuel conduit through which slurry fuel is flowable from the pump chamber to the fuel outlet valve; andan actuation fluid conduit through which actuation fluid is flowable from the actuation chamber to the fuel outlet valve.2. The slurry fuel injector valve according to claim 1 , wherein the fuel outlet valve comprises first and second valve elements that are co-operable with each other to control the exit of slurry fuel from the slurry fuel injector valve towards the combustion chamber of the engine; andwherein the fuel outlet valve is configured so that actuation fluid is expellable from the actuation fluid conduit and into contact with one or both of the first and second valve elements.3. The slurry fuel injector valve according to claim 1 , wherein the fuel outlet valve comprises a needle valve having a bore claim 1 , a needle fuel chamber claim 1 , and a valve needle that is moveable in the bore to protrude from within the bore into the needle fuel chamber to a variable extent; andwherein the actuation fluid conduit opens into the bore at an actuation fluid conduit outlet, whereby actuation fluid is expellable from the actuation fluid conduit outlet and into contact ...

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Номер записи: 55
02-01-2020 дата публикации

Valve needle

Номер: US20200003168A1
Автор: Tim REEVE
Принадлежит: AP Moller Maersk AS

Disclosed is a valve needle for a needle valve of a slurry fuel injector valve, the valve needle comprising: a tip for abutting a needle valve seat of the needle valve; a sealing portion for location in a bore of the needle valve; and a fuel chamber portion between the tip and the sealing portion, wherein the fuel chamber portion is for location in a needle fuel chamber of the needle valve; wherein a surface of the sealing portion of the valve needle comprises at least one groove and wherein at least part of the or each groove extends in a direction that is non-perpendicular to an axial direction of the valve needle.

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Номер записи: 56
07-01-2021 дата публикации

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

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

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

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Номер записи: 57
07-01-2021 дата публикации

Adaptive any-fuel camless reciprocating engine

Номер: US20210003087A1
Автор: Peter Sinsheimer, Raymond Mitchell Spearrin, Tsu-Chin Tsao
Принадлежит: UNIVERSITY OF CALIFORNIA

An adaptive, any-fuel reciprocating engine using sensor feedback integration of high-speed optical sensors with real-time control loops to adaptively manage the electronic actuation schemes over a range of engine loads and fuels. The engine uses one or more optical sensors to collect specific types of gas property data via a spectroscopic technique to adaptively control various components within the engine.

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Номер записи: 58
03-01-2019 дата публикации

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

Номер: US20190003406A1
Автор: HAGEN Peter, Kjemtrup Niels, Mayer Stefan
Принадлежит:

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

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Номер записи: 59
12-01-2017 дата публикации

DUAL FUEL SYSTEM FOR A COMBUSTION ENGINE

Номер: US20170009670A1
Автор: Lindblad Amy Ann, Pratt Jerrold Arthur, Roll Michael Thomas, Sorge Gregory Walter, Wentz Jared Joseph
Принадлежит:

A dual fuel system for a combustion engine includes an air and fuel mixer configured to mix air and fuel provided to the combustion engine, a first fuel path for a first fuel, and a second fuel path for a second fuel. The first and second fuels have different physical and chemical properties. The dual fuel system also includes a common fuel path coupled to the air and fuel mixer and both the first and second fuel paths, wherein the common fuel path includes an electronically controlled valve configured to regulate the air to fuel ratio of an air/fuel mixture provided to the combustion engine in response to control signals from a controller, and both the first and second fuel paths are coupled to the common fuel path at a location upstream of the electronically controlled valve. 1. A dual fuel system for a combustion engine , comprising:an air and fuel mixer configured to mix air and fuel provided to the combustion engine;a first fuel path for a first fuel;a second fuel path for a second fuel, wherein the first and second fuels have different physical and chemical properties; anda common fuel path coupled to the air and fuel mixer and both the first and second fuel paths, wherein the common fuel path comprises an electronically controlled valve configured to regulate the air to fuel ratio of an air/fuel mixture provided to the combustion engine in response to control signals from a controller, and both the first and second fuel paths are coupled to the common fuel path at a location upstream of the electronically controlled valve.2. The dual fuel system of claim 1 , wherein the first fuel path comprises a first fuel gas regulator configured to control a first pressure of the first fuel in relation to an air pressure of the air and fuel mixer claim 1 , and the second fuel path comprises a second fuel gas regulator configured to control a second pressure of the second fuel in relation to the air of the air and fuel mixer.3. The dual fuel system of claim 2 , comprising ...

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Номер записи: 60
12-01-2017 дата публикации

CYLINDER PRESSURE BASED CONTROL OF DUAL FUEL ENGINES

Номер: US20170009671A1
Автор: Bruner C. Larry, George Geomy, Kolhouse J. Steven, Lutz Timothy P., zur Loye Axel Otto
Принадлежит:

Systems and methods for controlling operation of dual fuel internal combustion engines in response to cylinder pressure based determinations are disclosed. The techniques control fueling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations. 1. A method , comprising;operating an internal combustion engine system including an intake system connected to an engine with a plurality of cylinders and at least two fuel sources operably connected to the internal combustion engine system to provide a flow of liquid fuel to each of the plurality of cylinders and a flow of a gaseous fuel to each of the plurality of cylinders, wherein the intake system is coupled to each of the plurality of cylinders to provide a charge flow from the intake system to a combustion chamber of the respective cylinder, the internal combustion engine system further including an exhaust system;determining a pressure in the combustion chamber of at least one cylinder during a combustion cycle associated with the cylinder;determining at least one operating condition of the at least one cylinder that is based on the pressure; andadjusting a substitution rate of the gaseous fuel for the liquid fuel in response to the operating condition deviating from a target operating condition.2. (canceled)3. The method of claim 1 , wherein the pressure is an indicated mean effective pressure (IMEP) claim 1 , the operating condition is an energy output determined from the IMEP in response to combustion of the liquid fuel and gaseous fuel in the combustion chamber claim 1 , and a first part of the operating condition is an energy contribution of the liquid fuel to the energy output determined from an amount of the liquid fuel provided during the combustion cycle and a heating value of the liquid fuel and a second part of the operating condition is an energy contribution of the gaseous fuel to the energy output.4. ...

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Номер записи: 61
12-01-2017 дата публикации

Control system and control method for internal combustion engine

Номер: US20170009680A1
Автор: Naoki Suzuki, Satoshi Taniguchi
Принадлежит: Toyota Motor Corp

In a control system for an internal combustion engine that can use a plurality of kinds of fuel including compressed natural gas, the invention prohibits a changeover from CNG to another fuel from being made in a period from a time when CNG is used for the first time after the start of the internal combustion engine to a time when it is determined that properties of CNG do not need to be learned, or a period from the time when CNG is used for the first time after the start of the internal combustion engine to a time when a processing of learning the properties of CNG ends.

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Номер записи: 62
12-01-2017 дата публикации

FUEL MIXTURE SYSTEM AND ASSEMBLY

Номер: US20170009681A1
Автор: Green Jason
Принадлежит:

A system and attendant structural assembly operative to establish a coordinated mixture of gaseous and distillate fuels for an engine including an electronic control unit (ECU) operative to monitor predetermined engine data determinative of engine fuel requirements and structured to regulate ratios of the gaseous and distillate fuel of an operative fuel mixture for the engine. The system and assembly includes at least one mixing assembly comprising an integrated throttle body and air gas mixer directly connected to one another, wherein the throttle body is disposed in fluid communication with a pressurized gaseous fuel supply and the air gas mixer is disposed in fluid communication with a flow of intake air to a combustion section of the engine. In use, the throttle body is structured to direct a variable gaseous fuel flow directly to the air gas mixer for dispensing into the intake air flow to the combustion section. 1. A control system for establishing gaseous fuel input for an engine operative on a variable mixture of gaseous and distillate fuels , said control system comprising:a monitor, said monitor comprising a plurality of sensors disposed and structured to monitor operating parameters over variable load conditions of the engine,said plurality of sensors further comprising at least one mass airflow (MAF) sensor, at least one temperature sensor, and at least one knock sensor,an electronic control unit (ECU) configured to interpretively process data from said monitor associated with said operating parameters, andsaid ECU operative to establish a concentration of the gaseous fuel in the variable fuel mixture to comply with any of said operating parameters being monitored.2. The control system as recited in wherein one of said operating parameters comprises a mass flow rate of intake air to a combustion section of the engine.3. The control system as recited in wherein one of said operating parameters comprises an exhaust gas temperature of the engine.4. The ...

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Номер записи: 63
14-01-2016 дата публикации

Fuel System Protection In A Multi-Fuel Engine

Номер: US20160010569A1
Автор: Bzymek Raymond, Cowgill Joshua, Dunn Mark E., Marriott Craig, Moscherosch Ben, Wu Ning, Zhang Dehong
Принадлежит:

A method that protects a direct injection fuel injector in a multi-fuel engine comprises selectively operating the engine with at least one of a directly injected fuel introduced through the direct injection fuel injector and a second fuel. When fuelling the multi-fuel engine with the second fuel, a fuel system protection technique is selectively commanded when one or more adverse conditions, such as the direct injection fuel injector requiring cooling, is determined to exist. The fuel system protection technique comprises (a) suspending fuelling with the second fuel and injecting the directly injected fuel for a first predetermined number of engine cycles, and (b) switching back to fuelling the multi-fuel engine with the second fuel for a second predetermined number of engine cycles. The first and second predetermined number of engine cycles are selected to keep torque disturbances below a predetermined threshold value. 1. A method of protecting a direct injection fuel injector in a multi-fuel engine , said method comprising:selectively operating said multi-fuel engine with a directly injected fuel introduced through said direct injection fuel injector and a second fuel; (a) suspending fueling with said second fuel and injecting said directly injected fuel for a first predetermined number of engine cycles;', '(b) switching back to fueling said multi-fuel engine with said second fuel for a second predetermined number of engine cycles, wherein said first predetermined number and said second predetermined number of engine cycles are selected to keep torque disturbances below a predetermined threshold value., 'when fueling said multi-fuel engine with said second fuel, selectively commanding a fuel system protection technique when at least one of the following adverse conditions is determined to exist: said direct injection fuel injector requires cooling, an age of directly injected fuel is above a predetermined value, transmission status has changed, an engine shutdown ...

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Номер записи: 64
14-01-2016 дата публикации

CONTROL SYSTEM AND METHOD

Номер: US20160010574A1
Автор: Daum Wolfgang, KUMAR Ajith Kuttannair
Принадлежит:

A system and method control a powered system having an engine configured to operate using a plurality of fuel types. A first set of control signals including a first set of valve signals are communicated to each fuel tank based at least in part on a first stored engine operating profile to control amounts of fuel provided from each fuel tank to the engine. A different, second set of control signals including a second set of valve signals are communicated to the fuel tanks based at least in part on a second stored engine operating profile to control or change the amounts of fuel from each fuel tank to the engine. The system and method can switch between operating conditions associated with different external domains to alter the engine operating profile used to control the fuel or fuels supplied to the engine. 1. A system comprising:a controller configured to be disposed onboard a powered system having an engine configured to consume two or more different fuels to power the powered system, the controller configured to generate and communicate one or more control signals to valves associated with two or more different fuel tanks that store the two or more different fuels, wherein the controller is configured to change the one or more control signals to change which of the two or more different fuels are supplied to the engine at different times.2. The system of claim 1 , wherein the controller is configured to receive a location of the powered system from an input device and to change the one or more control signals responsive to and based on the location received from the input device.3. The system of claim 2 , wherein the controller is configured to compare the location of the powered system with different engine operating profiles associated with different geographic areas claim 2 , and the controller is configured to change the one or more control signals based on the engine operating profile associated with the geographic area in which the location of the powered ...

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Номер записи: 65
14-01-2016 дата публикации

Hydrogen fuel assist device for an internal combustion engine system

Номер: US20160010575A1
Автор: Huan-Hsin Kou
Принадлежит: Individual

A hydrogen fuel assist device for an internal combustion engine includes: a hydrogen gas generator for generating hydrogen gas; a fluid pump capable of pumping the hydrogen gas into a combustion chamber of the internal combustion engine through an air throttle valve, which is connected to the combustion chamber, at varying flow rates; and a pump controller for controlling a rotational speed of the fluid pump in response to opening degree of a fuel throttle valve connected to the combustion chamber so as to adjust the flow rate of the hydrogen gas to be supplied into the combustion chamber during operation of the internal combustion engine.

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Номер записи: 66
14-01-2016 дата публикации

METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE

Номер: US20160010581A1
Автор: Sivasubramanian Arvind, SIXEL Eike Joachim, Stubbs Adam, WESTER Daniel
Принадлежит: CATERPILLAR MOTOREN GMBH & CO. KG

A method for controlling an internal combustion engine is disclosed. The method may include receiving knock data corresponding to knock levels over a time period. The method may also include determining from the knock data whether the knock levels change over the time period. Further, the method may include determining that a variation in the gas composition of the gaseous fuel supplied to the internal combustion engine has occurred when the knock levels change over the time period. In addition, the method may include adjusting an operating condition of the internal combustion engine to adapt a knock susceptibility of the internal combustion engine to the varying gas composition. 1. A method for controlling an internal combustion engine operating at least partly on gaseous fuel with a varying gas composition , the method comprising:receiving a knock data corresponding to knock levels over a time period;determining from the knock data whether the knock levels change over the time period;determining that a variation in the gas composition of the gaseous fuel supplied to the internal combustion engine has occurred when the knock levels change over the time period; andadjusting an operating condition of the internal combustion engine to adapt a knock susceptibility of the internal combustion engine to the varying gas composition.2. The method of claim 1 , wherein the knock data correspond to the knock levels received over the time period of at least 4 combustion cycles.3. The method of claim 1 , further comprising:determining whether the knock levels are within a preset knock level range and below a preset knock level threshold.4. The method of claim 3 , further comprising: the preset knock level threshold is set in the range from 1% to 10%,', 'the preset knock level range is set in the range from 0% to 10%, and', 'the preset knock margin range is set in the range from 0% to 5%., 'setting the preset knock level threshold, the preset knock level and the preset knock ...

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Номер записи: 67
11-01-2018 дата публикации

Injection device for an internal combustion engine

Номер: US20180010535A1
Автор: Andreas Posselt, Thomas Pauer
Принадлежит: ROBERT BOSCH GMBH

An injection device for an internal combustion engine, the internal combustion engine including a combustion chamber and at least one intake manifold, the injection device including a first injector for injecting a fuel directly into the combustion chamber, and the injection device including a second injector for injection into the intake manifold, wherein the second injector is configured to inject water.

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Номер записи: 68
10-01-2019 дата публикации

COMBUSTION GAS INJECTOR ASSEMBLY AND METHOD

Номер: US20190010878A1
Автор: Berger Ingmar, Koch Hans-Joachim, Nitsche Michael, Siebert Steffen
Принадлежит: L'Orange GmbH

The invention relates to a combustion gas injector assembly () comprising a combustion gas injector () having groups () of combustion gas nozzle openings distributed around the periphery, each group having at least one combustion gas nozzle opening (), a combustion gas nozzle valve member () of the combustion gas injector (), which member can be controlled in the open position and closed position, is associated with each group () of combustion gas nozzle openings, in order to selectively discharge the combustion gas via the at least one combustion gas nozzle opening (). The combustion gas injector assembly () is configured to control the combustion gas nozzle valve members () successively with a predetermined time offset (T) into the closed position. 1. A combustion gas injector assembly comprising a combustion gas injector , which has combustion gas nozzle opening groups distributed over a circumference , each of which has at least one combustion gas opening , wherein a respective combustion gas nozzle opening group is dedicated to a combustion gas nozzle valve element of the combustion gas injector that can be closed and opened for selective combustion gas injection via its at least one combustion gas nozzle opening , wherein the combustion gas injector assembly is configured to successively close the combustion gas nozzle valve elements with a predetermined time offset.2. The combustion gas injector assembly of claim 1 , wherein the combustion gas injector assembly is configured to successively close the combustion gas nozzle valve elements along the circumference with the predetermined time offset.3. The combustion gas injector assembly of claim 1 , wherein the combustion gas injector assembly is configured to successively open the combustion gas nozzle valve elements with a predetermined opening time offset.4. The combustion gas injector assembly of claim 1 , wherein the combustion gas injector assembly is configured to set the predetermined time offset to ...

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Номер записи: 69
10-01-2019 дата публикации

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

Номер: US20190010879A1
Автор: HAGEN Peter, Kjemtrup Niels, Mayer Stefan
Принадлежит:

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

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Номер записи: 70
10-01-2019 дата публикации

FUEL INJECTOR

Номер: US20190010908A1
Автор: Meek George A., PANESAR Lukhbir
Принадлежит:

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

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Номер записи: 71
15-01-2015 дата публикации

Dual-fuel diesel engine and operation method of the same

Номер: US20150013638A1
Автор: Akihiro Miyanagi, Akihiro Yuuki, Hiroyuki Ishida, Naohiro Hiraoka, Yasuyuki KOMADA
Принадлежит: Mitsubishi Heavy Industries Ltd

When shifting to the single combustion mode, an electromagnetic opening-and-closing valve V 1 is closed so as to block a gas fuel. Then, an electromagnetic opening-and-closing valve V 3 is opened so as to discharge the gas fuel remaining in a gas fuel supply path to the outside of the system. Then, an electromagnetic opening-and-closing valve V 2 is opened so as to introduce a replacement gas from a replacement gas reservoir tank to the gas fuel supply path, thereby replacing the contents inside the gas fuel supply path with the replacement gas. After completing the replacement, the electromagnetic opening-and-closing valves V 2 and V 3 are closed. Next, the electromagnetic opening-and-closing valve V 2 is opened and the replacement gas is injected from the gas fuel injectors to a combustion chamber.

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Номер записи: 72
03-02-2022 дата публикации

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

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

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

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Номер записи: 73
21-01-2016 дата публикации

THERMAL MANAGEMENT SYSTEM FOR THE FEEDING OF FUEL IN INTERNAL COMBUSTION ENGINES

Номер: US20160017822A1
Автор: AMARAL Tadeu Miguel Malagó, BUENO Ricardo Roveri, YOSHINO Fernando Jun
Принадлежит:

The system is applied to an engine (M) having an injection system (), a fuel feed line () and a cooling system (CS), by means of a cooling fluid which circulates, through hot fluid ducts () and cold fluid ducts (), through the engine (M) and through a heat exchanger (). The feed line () comprises: a first segment (), connected to the injection system () and provided with a first valve (), to be closed when the fuel temperature is below a maximum value, and open when the fuel temperature reaches the maximum value; and a second segment () derived from the first and absorbing thermal energy from the hot fluid duct () or from the combustion gases and provided with a second valve () which remains open while the fuel temperature is lower than the maximum value, and which is closed when said temperature reaches the maximum value.

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Номер записи: 74
17-04-2014 дата публикации

Fuel system and methods

Номер: US20140102415A1
Автор: Bradley Trembath, Jim Heinz, Michael Wyban, Ryan Davis
Принадлежит: Intellectual Property Holdings LLC

The present application discloses an engine, a fuel system for an engine, and a method of installing the fuel system and converting an engine to operate using a second fuel. In one exemplary embodiment, the fuel system comprises at least one fuel rail for the second fuel, at least one connector attached to the fuel rail and configured to fluidly connect the fuel rail to a second fuel injector, and at least one fuel injector adapter configured to receive a discharge end of the second fuel injector and position the discharge end in fluid communication with at least one of an intake port and a combustion chamber of the engine. The fuel system is configured such that the engine operates using the second fuel without removal or use of the original fuel rails and original fuel injectors.

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Номер записи: 75
17-01-2019 дата публикации

SYSTEM AND PROCESS FOR IMPROVING EMISSION PERFORMANCE IN ENGINES

Номер: US20190017448A1
Автор: Monros Serge V.
Принадлежит:

A system for reducing polluting emissions of diesel engines includes a hydrogen gas generator that mixes the hydrogen gas with diesel fuel during certain operations phases of the engine. A default program mixes no hydrogen gas with the diesel fuel. A first operational program, during a cold start, mixes the hydrogen gas and diesel fuel in a 1:1 ratio. A second operational program, during a stabilization phase, mixes the hydrogen gas and diesel fuel in a 1:3 ratio. A third operational program, during a hot start phase, mixes the hydrogen gas and diesel fuel in a 1:2 ratio. 1. A process for improving emission performance in an engine , wherein a supply of fuel is fluidly connected to a combustion chamber in the engine , comprising the steps of:providing a hydrogen gas generator fluidly connected to the combustion chamber in the engine;providing a microcontroller electrically connected to the hydrogen gas generator and a pump on the supply of fuel, wherein the microcontroller is configured to modulate an amount of hydrogen gas and an amount of fuel entering the combustion chamber;programming the microcontroller with a default operating state wherein the amount of hydrogen gas entering the combustion chamber relative to the amount of fuel is in a ratio of essentially 0:1;programming the microcontroller with a first operating state wherein the amount of hydrogen gas entering the combustion chamber relative to the amount of fuel is in a ratio of at least 1:1;starting the first operating state in the microcontroller when a cold start operational phase of the engine begins; andstopping the first operating state in the microcontroller when the cold start operational phase of the engine ends.2. The process of claim 1 , further comprising the steps of:programming the microcontroller with a second operating state wherein the amount of hydrogen gas entering the combustion chamber relative to the amount of fuel is in a ratio of at least 1:3;starting the second operating state in ...

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Номер записи: 76
17-01-2019 дата публикации

Method And Control System For Operating An Internal Combustion Engine

Номер: US20190017460A1
Автор: Döring Andreas, WEBER ARMIN
Принадлежит:

A method for operating an internal combustion engine with multiple cylinders. Each cylinder of the internal combustion engine includes at least one fuel injector, and each fuel injector is activated for opening and closing via a solenoid valve of the respective fuel injector. Structure-borne sound waves emitted by the fuel injectors and/or accelerations caused by the fuel injectors are detected by measurement. The structure-borne sound waves detected by measurement and/or the accelerations detected by measurement are evaluated, and based on the evaluation, characteristics of the fuel injectors are automatically determined. 1. A method for operating an internal combustion engine having multiple cylinders , wherein each cylinder comprises at least one fuel injector , comprising:activating each fuel injector to open and close a solenoid valve of a respective fuel injector;detecting by measurement at least one of structure-borne sound waves emitted by the fuel injectors and accelerations caused by the fuel injectors;evaluating the at least one of the structure-borne sound waves detected by measurement and the accelerations detected by measurement are evaluated; andautomatically determining, based on the evaluation, characteristics of the fuel injector.2. The method according to claim 1 , further comprising:comparing the detected at least one of the structure-borne sound waves and the accelerations with at least one of a respective reference value and among themselves,wherein based on this comparison characteristics of the fuel injectors are automatically determined.3. The method according to claim 1 , wherein the at least one of the structure-borne sound waves and the accelerations are detected with corresponding structure-borne sound wave sensors and acceleration sensors that are attached to assemblies coupled to the fuel injector in terms of structure-borne sound wave claim 1 , or are detected with structure-borne sound wave sensors claim 1 , which are directly ...

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Номер записи: 77
17-01-2019 дата публикации

Multi-Fuel Combustion Methods, Devices and Engines Using the Same

Номер: US20190017477A1
Автор: Hou Deyang
Принадлежит: QuantLogic Corporation

This invention discloses a combustion method, which is for an internal combustion engine, which utilizes variable spray patterns matched with a combustion chamber composing of multiple connected spaces based on injection timings and engine loads. This invention provides means to control propagation paths of combustion reaction radicals and control pressure rise rate, and also provides means to promote stratification of premixed charges. An internal combustion engine utilizing the disclosed combustion methods is also disclosed.

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Номер записи: 78
22-01-2015 дата публикации

Apparatus And Method For Igniting A Gaseous Fuel In A Direct Injection Internal Combustion Engine

Номер: US20150020769A1
Автор: Huang Jian, McTaggart-Cowan Gordon P., Munshi Sandeep, Wager David R.
Принадлежит:

An apparatus and method for igniting a gaseous fuel directly introduced into a combustion chamber of an internal combustion engine comprises steps of heating a space near a fuel injector nozzle; introducing a pilot amount of the gaseous fuel in the combustion chamber during a first stage injection event; controlling residency of the pilot amount in the space such that a temperature of the pilot amount increases to an auto-ignition temperature of the gaseous fuel whereby ignition occurs; introducing a main amount of the gaseous fuel during a second stage injection event after the first stage injection event; and using heat from combustion of the pilot amount to ignite the main amount. 1. A method of igniting gaseous fuel directly introduced into a combustion chamber of an internal combustion engine comprising steps of:introducing a pilot amount of gaseous fuel into said combustion chamber;igniting said pilot amount of gaseous fuel;introducing a main amount of gaseous fuel into said combustion chamber;using heat from combustion of said pilot amount of gaseous fuel to ignite said main amount of gaseous fuel; andcontrolling gaseous fuel flow into said combustion chamber between said main amount of gaseous fuel and said pilot amount of gaseous fuel by providing a ratio between a main cross-sectional area of a main injection passageway in a fuel injector nozzle and a pilot cross-sectional area of a pilot injection passageway in said fuel injector nozzle within a range of 4 to 49.2. The method of claim 1 , wherein said gaseous fuel is natural gas.3. The method of claim 1 , wherein said gaseous fuel is selected from the group consisting of methane claim 1 , propane claim 1 , ethane claim 1 , biogas claim 1 , landfill gas claim 1 , hydrogen and mixtures of these fuels.4. The method of claim 1 , further comprising absorbing heat around said fuel injector nozzle to assist with combustion of said pilot amount and said main amount.5. The method of claim 1 , wherein said igniting ...

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Номер записи: 79
21-01-2021 дата публикации

SYSTEMS, METHODS, AND APPARATUS FOR OPERATION OF DUAL FUEL ENGINES

Номер: US20210017918A1
Автор: Borregard Robert Charles, Bruner C. Larry, Garimella Phanindra V., George Geomy, Hodzen Edmund P., Kolhouse J. Steven, Lutz Timothy P., Rosswurm Mark A., zur Loye Axel Otto
Принадлежит:

Systems, methods and apparatus for controlling operation of dual fuel engines are disclosed that regulate the fueling amounts provided by a first fuel and a second fuel during operation of the engine. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The fueling amounts are controlled to improve operational outcomes of the duel fuel engine. 149-. (canceled)50. A system , comprising:an internal combustion engine having a first cylinder and a second cylinder;a fuel system having a first fuel source comprising a diesel fuel and a second fuel system having a second fuel source comprising a gaseous fuel, each of the first cylinder and the second cylinder operationally coupled to both the first fuel system and the second fuel system; anda controller configured to interpret an engine operating value and to provide, in response to the engine operating value, at least one first fuel source command and at least one second fuel source command to the fuel system such that the fuel system provides a first ratio of the diesel fuel to the gaseous fuel in the first cylinder (d1:g1) that is distinct from a second ratio of the diesel fuel to the gaseous fuel in the second cylinder (d2:g2).51. The system of claim 50 , wherein the engine operating value comprises a fuel injector tip temperature value.52. The system of claim 51 , wherein the controller is further configured to increase the ratio d1:g1 to reduce the fuel injector tip temperature value for the injector tip in the first cylinder.53. The system of claim 52 , wherein the controller is further configured to alternate increased diesel ratios between cylinders to reduce the fuel injector tip temperature values corresponding to the injector tips in each of the various cylinders.54. The system of claim 50 , wherein the second fuel system comprises one of gaseous port injection and gaseous direct injection claim 50 , and wherein the engine operating value comprises a gaseous injector failure value ...

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Номер записи: 80
16-01-2020 дата публикации

DUAL FUEL NOZZLE ARRANGEMENT

Номер: US20200018246A1
Автор: Meek George A., Yearsley Jason
Принадлежит:

A nozzle assembly of a dual fuel injector includes a first fuel conduit and a second fuel conduit. An anti-leakage feature of the nozzle assembly includes a cylindrical tubular sleeve axially extending in an inner space of the nozzle body from an upper end attached to the body to a distant lower end, the outer valve member being axially guided through said sleeve. 113-. (canceled)14. A nozzle assembly of a dual fuel injector of an internal combustion engine , said nozzle assembly extending along a main axis from a large upper end adapted to cooperate with an actuation member of the dual fuel injector to a narrow tip end , said nozzle assembly comprising:an elongated body coaxially arranged along said main axis and having a peripheral wall surrounding an inner space which portion proximal the larger upper end defines an upper guiding bore for axially guiding an outer valve member arranged therein, said outer valve member being itself provided with an axial bore in which is axially guided an inner valve member;a first fuel conduit comprising said axial bore and extending from an inlet arranged in a large upper end face of the elongated body to a first set of injection holes arranged in the narrow tip end;a second fuel conduit comprising said inner space and extending from another inlet arranged in the large upper end face of the elongated body to a second set of injection holes arranged in the narrow tip end; andan anti-leakage feature comprising a cylindrical tubular sleeve axially extending in said inner space from an upper end attached to the elongated body to a distant lower end, the outer valve member being axially guided through said cylindrical tubular sleeve.wherein a first fuel, flows inside the outer valve member and a second fuel flows in the inner space surrounding said outer valve member.15. A nozzle assembly as claimed in claim 14 , wherein the cylindrical tubular sleeve is arranged as an extension of the upper guiding bore and wherein a clearance is ...

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Номер записи: 81
26-01-2017 дата публикации

FUEL SYSTEM FOR A MULTI-FUEL INTERNAL COMBUSION ENGINE

Номер: US20170022910A1
Автор: Collie Kendall J., Dehn James J., Jenison Leigh, Sarder Mark J., Sotiriades Aleko D.
Принадлежит:

A multi-fuel engine includes an engine operable on a liquid fuel and a gaseous fuel. The multi-fuel engine also includes a liquid cutoff solenoid coupled to open and close a liquid fuel path to the engine, and a gaseous cutoff solenoid coupled to open and close a gaseous fuel source to the engine. A switch couples a power source to the liquid cutoff solenoid and the gaseous cutoff solenoid to switch between fuel sources on-the-fly during engine operation. 1. A multi-fuel engine comprising:an engine operable on a liquid fuel and a gaseous fuel;a liquid cutoff solenoid coupled to open and close a liquid fuel path to the engine;a gaseous cutoff solenoid coupled to open and close a gaseous fuel source to the engine; anda switch coupling a power source to the liquid cutoff solenoid and the gaseous cutoff solenoid to switch between fuel sources on-the-fly during engine operation.2. The multi-fuel engine of claim 1 , further comprising a carburetor attached to an intake of the engine to mix air and fuel and connect a liquid fuel source to the intake; andwherein the liquid cutoff solenoid is coupled to the carburetor to open and close the liquid fuel path downstream from a float bowl in the carburetor; andfurther wherein the gaseous cutoff solenoid couples the gaseous fuel source to the intake to control flow of the gaseous fuel to the engine.3. The multi-fuel engine of wherein the switch actuates the liquid cutoff solenoid and the gaseous cutoff solenoid to change engine operation between the liquid fuel and the gaseous fuel so as to prevent fuel flow from a liquid fuel source and the gaseous fuel source simultaneously and allow switching between fuel sources on-the-fly during engine operation.4. The multi-fuel engine of wherein the switch actuates the gaseous cutoff solenoid and the liquid cutoff solenoid in succession to provide fuel overlap when changing engine operation between the liquid fuel and the gaseous fuel.5. The multi-fuel engine of wherein the multi-fuel ...

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Номер записи: 82
26-01-2017 дата публикации

CONTROL DEVICE

Номер: US20170022914A1
Автор: KUROTANI Tadashi, KUZUOKA Kohei, SHIGETOYO Kenji
Принадлежит: HONDA MOTOR CO., LTD.

A control device includes first and second level ratio calculators and an adjuster. The first level ratio calculator calculates a first level ratio of an amount of a first fuel stored in a first tank to a full tank capacity of the first tank. The second level ratio calculator calculates a second level ratio of an amount of a second fuel stored in a second tank to a full tank capacity of the second tank. An octane number of the second fuel is higher than an octane number of the first fuel. The adjuster adjusts a first fuel ratio of the first fuel in a supplied fuel which is supplied to an internal combustion engine and a second fuel ratio of the second fuel in the supplied fuel such that a deviation ratio of the first level ratio and the second level ratio is within a predetermined range. 1. A control device for an internal combustion engine in which a first fuel stored in a first tank and a second fuel whose octane number is higher than an octane number of the first fuel , the second fuel stored in a second tank , are used in combination , the control device comprising:a first level ratio obtaining unit that obtains a first level ratio which is a ratio of a level of the first fuel to a predetermined full tank capacity of the first tank;a second level ratio obtaining unit that obtains a second level ratio which is a ratio of a level of the second fuel to a predetermined full tank capacity of the second tank; andan adjusting unit that adjusts a first fuel ratio which is a ratio of the first fuel in a fuel which is supplied to the internal combustion engine and a second fuel ratio which is a ratio of the second fuel in the fuel which is supplied to the internal combustion engine, whereinthe adjusting unit adjusts the first and second fuel ratios such that a degree of deviation, from one of the first and second level ratios, of another of the first and second level ratios falls within a predetermined range.2. The control device according to claim 1 , whereinthe degree ...

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Номер записи: 83
26-01-2017 дата публикации

Internal Combustion Engine Having a Splitted Fuel Admission and a Respective Combustion Process

Номер: US20170022937A1
Автор: Hannes Biffiger, Patrik Soltic
Принадлежит: Eidgenoessische Materialprufungs und Forschungsanstalt EMPA

The invention provides a combustion engine comprising at least one combustion chamber, preferably several combustion chambers ( 1 ), wherein to each combustion chamber a piston ( 2 ) moving within a cylinder ( 3 ), a cylinder head ( 4 ) comprising at least one admission valve ( 5 ), at least one outlet valve ( 6 ), at least one spark plug ( 7 ) an intake port ( 13 ) and a throttle ( 8 ) controlling the engine load, is assigned. The combustion chamber ( 1 ) comprises a secondary injector means ( 14 ) for injecting a secondary fuel directly into the combustion chamber ( 1 ) in the direction of the spark plug ( 7 ) and secondary fuel supply means ( 15 ) for supplying a gas as a secondary fuel to said secondary injector means ( 14 ). Supply means ( 16 ) for compressed air and mixture means for providing a mixture of air and gas fuel to said secondary injector means ( 14 ), facilitating the stoichiometric air-to-fuel ratio to be held at λ=1.

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Номер записи: 84
25-01-2018 дата публикации

System and Method For Managing a Volatile Organic Compound Emission Stream

Номер: US20180023488A1
Автор: Scott Francis Coon, William Ronald Steen
Принадлежит: Leidos Inc

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

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Номер записи: 85
24-04-2014 дата публикации

Internal combustion engine-reformer installation

Номер: US20140109853A1
Автор: Friedrich Gruber, Günther WALL, Lukas VOGL, Michael URL
Принадлежит: GE Jenbacher GmbH and Co oHG

A method of operating an internal combustion engine-reformer installation having an internal combustion engine and a reformer, includes predetermining at least one parameter of the internal combustion engine, calculating a desired amount of fuel for the reformer on the basis of the at least one parameter, feeding the desired amount of fuel to the reformer, reforming fuel to give a synthesis gas in the reformer, and feeding the synthesis gas to the internal combustion engine. A synthesis gas pressure of the synthesis gas downstream of the reformer is measured, and the synthesis gas pressure is taken into consideration when calculating the desired amount of fuel.

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Номер записи: 86
24-01-2019 дата публикации

ALTERNATIVE FUEL RETROFIT KIT FOR A COMBUSTION ENGINE

Номер: US20190024616A1
Автор: Monros Serge V.
Принадлежит: SVMTech, LLC

A retrofit-kit converts an existing internal combustion engine running on gasoline or diesel to run on either the old fuel or an alternative fuel such as compressed natural gas, liquid petroleum, hydrogen, propane, etc. The kit provides a new fuel tank for the alternative fuel, fuel injectors specifically calibrated for the type of alternative fuel used in the kit, as well as gasoline or diesel, and a micro-controller which reads existing engine sensors to allow for fine-tuned injection of the alternative fuel, along with regulation of blow-by gas recycling. 1. An alternative fuel retrofit kit for an internal combustion engine , comprising:a retrofit fuel tank;a conjunction box fluidly connected to the retrofit fuel tank;a plurality of fuel injectors fluidly connected to the conjunction box;a fuel valve in the conjunction box fluidly in-line between the retrofit fuel tank and the plurality of fuel injectors; anda microcontroller operatively connected to the fuel valve.2. The alternative fuel retrofit kit of claim 1 , further comprising a blow-by gas recirculating system comprising a PCV valve claim 1 , a vent line fluidly connecting a crankcase of an engine to the PCV valve claim 1 , and a recirculating line fluidly connecting the PCV valve to the conjunction box.3. The alternative fuel retrofit kit of claim 2 , wherein the microcontroller is operatively connected to the PCV valve and regulates an open/close state of the PCV valve in response to engine sensor signals.4. The alternative fuel retrofit kit of claim 1 , further comprising retrofit fuel injection rails and retrofit fuel injectors.5. The alternative fuel retrofit kit of claim 4 , wherein the retrofit fuel injection rails and retrofit fuel injectors are configured to deliver multiple types of fuel to the engine.6. A process for installing a fuel retrofit kit on an internal combustion engine claim 4 , comprising the steps of:installing a retrofit fuel tank in a vehicle containing an engine;installing a ...

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Номер записи: 87
29-01-2015 дата публикации

Operating a power plant with pyrolysis oil based fuel

Номер: US20150027385A1
Автор: Andreas Von Der Osten-Sack, Jens-Uwe Reeh
Принадлежит: Caterpillar Motoren GmbH and Co KG

A power plant may include a power house, a tank farm, and a fuel treatment building. The power house may include an internal combustion engine adapted to be operated with pyrolysis oil based fuels. The power house may further include a conditioning and circulating system with a conditioning unit and a fuel recirculating unit, forming a fuel recirculating cycle together with an engine fuel system. The tank farm may include tanks for pyrolysis oil based fuels, a switching fuel or its components, and crude oil based fuels. The power plant may also include a first switching unit and a second switching unit to release fuel mixes from the fuel recirculating cycle. The power plant may allow switching fuels while continuously operating the internal combustion engine with various fuels.

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Номер записи: 88
23-01-2020 дата публикации

FUEL EXCHANGE SYSTEM AND FUEL SUPPLY SYSTEM FOR FUEL SYSTEMS

Номер: US20200025114A1
Автор: Becker Holger
Принадлежит:

A system for exchanging of different fuels that can be used for operation of an engine. The system includes a fuel exchange unit, a control and an exchange return conduit. The fuel exchange unit is configured to deliver a first fuel at pressure into the injections system given a switched-off engine, in order to replace a second fuel, which is located in the injection system, with the first fuel. A fuel delivery system includes a media converter which includes a deflectable element. The media converter is driven by a drive unit via the fluid by way of the fluid being able to be led at a varying pressure to the media transformer via a first feed conduit, and is configured to deliver the fuel via a pumping effect. 118-. (canceled)19. A system for the delivery of a combustible , comprising:a conduit system, in which a fluid and a combustible, which is different than said fluid, can be led;a media transformer that is configured to deliver the combustible through the conduit system;a connection to a drive unit, wherein the drive unit is configured to move the fluid through the conduit system and wherein the connection is configured to feed the fluid to the media transformer;wherein the media transformer comprises a deflectable element, a first volume for the fluid a second volume for the combustible and a first feed conduit, via which the fluid flows into the first volume, in that the fluid that flows into the first volume via the first feed conduit has a pressure that varies and wherein the media transformer is configured to convert the fluid, which varies in pressure, into a deflection of the deflectable element such that a pumping effect upon the combustible arises.20. The system according to claim 19 , wherein the deflectable element is one of a membrane or a piston.21. The system according to claim 19 , wherein the first volume perpendicularly to a deflection direction of the deflectable element in the first volume comprises a first profile and the second volume ...

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Номер записи: 89
02-02-2017 дата публикации

FUEL PROPERTY ESTIMATION DEVICE

Номер: US20170030272A1
Автор: HOTTA Takashi, KITANO Koji, MOGI Kazuhisa, TANIGUCHI Satoshi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

This fuel property estimation device is used in an internal combustion engine that uses a mixed fuel of three kinds of fuel and includes a first sensor that outputs a signal responsive to a physical property of the fuel in a fuel route and a second sensor outputs a signal responsive to an oxygen concentration of exhaust gas. This device measures a physical property value of the mixed fuel based on a first sensor signal, and calculates an air-fuel ratio value at stoichiometric combustion state using feedback of a second sensor signal. This device estimates a composition ratio of the mixed fuel based on the measured physical property value and the calculated air-fuel ratio value by referring to a relationship between the composition ratio of the mixed fuel and the physical property value and a relationship between the composition ratio of the mixed fuel and a theoretical air-fuel ratio value. 1. A fuel property estimation device for an internal combustion engine that uses a mixed fuel of three kinds of fuel , including a first sensor provided on a fuel route and a second sensor provided on an exhaust passage , the first sensor outputting a signal responsive to a physical property of the fuel , and a second sensor outputting a signal responsive to an oxygen concentration of exhaust gas , the fuel property estimation device comprising:a physical property measurements unit that is configured to measure a physical property value of the mixed fuel used in the internal combustion engine based on a signal from the first sensor;an air-fuel ratio value calculation unit that is configured to calculate an air-fuel ratio value at a time when the combustion state of the internal combustion engine is adjusted to be stoichiometric using feedback of a signal from the second sensor; anda fuel composition ratio estimation unit that is configured to estimate a composition ratio of the mixed fuel used in the internal combustion engine based on the physical property value measured by the ...

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Номер записи: 90
02-02-2017 дата публикации

Method and apparatus for controlling internal-combustion engine

Номер: US20170030275A1
Автор: Kenji SHIGETOYO, Kohei Kuzuoka, Tadashi Kurotani
Принадлежит: Honda Motor Co Ltd

A method for controlling an internal-combustion engine includes detecting knocking in the internal-combustion engine. An EGR gas quantity of EGR gas is increased in a case where the knocking is detected. A part of exhaust gas is circulated into an intake passage as the EGR gas. A fuel octane number of fuel supplied to a cylinder is increased in the case. The fuel octane number is decreased after the fuel octane number has been increased. The EGR gas quantity is maintained so as to prevent the knocking after the EGR gas quantity has been increased.

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Номер записи: 91
02-02-2017 дата публикации

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

Номер: US20170030311A1
Автор: Kalenborn Markus
Принадлежит: L'Orange GmbH

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

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Номер записи: 92
04-02-2016 дата публикации

METHOD AND APPARATUS FOR FUEL REGULATION

Номер: US20160032849A1
Автор: HAAS Jordan, TOUCHETTE Alain, Walker James D.
Принадлежит:

A method for fuel regulation during a non-motoring operating mode of an internal combustion engine is provided. A fuel regulator employs a first fuel to regulate pressure of a second fuel. The first fuel is communicated to the fuel regulator through a first fuel circuit. The method comprises actuating a fuel injector that introduces the first fuel and the second fuel into a combustion chamber of the internal combustion engine during the non-motoring operating mode. The fuel injector is actuated with an injection command signal having a pulse width below a predetermined maximum value whereby no fuel is injected into the combustion chamber and the first fuel drains from the first fuel circuit through the fuel injector to a supply tank. 1. A method for fuel regulation during a non-motoring operating mode of an internal combustion engine , a fuel regulator employing a first fuel to regulate pressure of a second fuel , said first fuel communicated to said fuel regulator through a first fuel circuit , the method comprising:actuating a fuel injector that introduces said first fuel and said second fuel into a combustion chamber of said internal combustion engine during said non-motoring operating mode, said fuel injector actuated with an injection command signal having a pulse width below a predetermined maximum value whereby no fuel is injected into said combustion chamber and said first fuel drains from said first fuel circuit through said fuel injector to a supply tank.2. The method of claim 1 , wherein said injection command signal activates an actuator in said fuel injector associated with injecting said first fuel into said combustion chamber.3. The method of claim 1 , wherein said injection command signal activates an actuator in said fuel injector associated with injecting said second fuel into said combustion chamber.4. The method of claim 1 , further comprising actuating said fuel injector with said injection command signal during a motoring operating mode.5. The ...

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Номер записи: 93
04-02-2016 дата публикации

FUEL INJECTOR TEMPERATURE MITIGATION

Номер: US20160032857A1
Автор: Dunn Mark E., Wu Ning
Принадлежит:

A technique for fuel system protection for an internal combustion engine comprises determining direct fuel injector temperature as a function of engine operating parameters; and advancing intake valve timing when the temperature rises above a first predetermined value such that the temperature is maintained below a second predetermined value. 1. A method of fuel system protection for an internal combustion engine comprising:determining a temperature of a direct fuel injector as a function of engine operating parameters; andadvancing intake valve timing when said temperature rises above a first predetermined value such that said temperature is maintained below a second predetermined value.2. The method of claim 1 , further comprising:introducing a directly injected fuel into a combustion chamber through said direct fuel injector;introducing a fumigated fuel upstream of an intake valve; andselectively operating said internal combustion engine with at least one of said directly injected fuel and said fumigated fuel.3. The method of claim 1 , further comprising introducing a directly injected fuel into a combustion chamber through said direct fuel injector.4. The method of claim 1 , wherein said first predetermined value is greater than said second predetermined value.5. The method of claim 1 , wherein said engine operating parameters are determinative of directly injected fuel quantity and fumigated fuel quantity introduced into said combustion chamber and frequency with which said fuel quantities are introduced.6. The method of claim 1 , further comprising retarding exhaust valve timing as a function of engine operating conditions such that said temperature is maintained below said second predetermined value.7. The method of claim 6 , wherein said engine operating conditions comprise engine speed claim 6 , engine load and intake valve timing.8. The method of claim 1 , further comprising advancing ignition timing such that at least one of fuel consumption of said ...

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Номер записи: 94
04-02-2016 дата публикации

System and method for controlling operation of an engine

Номер: US20160032859A1
Автор: Adam Edgar Klingbeil, James Robert Mischler, Jennifer Lynn Jackson, Kevin Michael Fisher
Принадлежит: General Electric Co

A method involves comparing a determined operating parameter of an engine, with a predefined operating parameter. The method further involves controlling a fuel source and an ignition source of the engine so as to operate at least one engine cylinder in a skip fire mode for at least one cycle of a crank shaft when the determined operating parameter is greater than the predefined operating parameter. The controlling involves transitioning the fuel source from a normal mode to the skip fire mode for the at least one cycle of the crank shaft either before transitioning the ignition source from the normal mode to the skip fire mode or when the ignition source is operated in the normal mode.

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Номер записи: 95
01-02-2018 дата публикации

METHOD FOR OPERATING A MOTOR VEHICLE PROVIDED WITH A HYBRID DRIVE APPARATUS AND A CORRESPONDING MOTOR VEHICLE

Номер: US20180030866A1
Автор: Blasinski Boris
Принадлежит: Audi AG

A method for operating a motor vehicle provided with a hybrid drive apparatus. The hybrid drive device is equipped with an internal combustion engine that can be operated with a fuel, as well as with an electric engine, and a lubricant is supplied at least intermittently to the internal combustion engine. At the same time, a lubricant dilution value is determined with a dilution of the lubricant so that the internal combustion engine is started when a first threshold value is exceeded by the lubricant dilution value, and when the motor vehicle is located on a regeneration route of an anticipated driving route of the motor vehicle and the regeneration route is sufficient to reduce the lubricant dilution value by a specified value. 1. A method for operating a motor vehicle provided with a hybrid drive device , wherein the hybrid drive apparatus is equipped with an internal combustion engine that can be operated with fuel , as well as with an electric engine , and a lubricant is supplied at least intermittently to the internal combustion engine , comprising:determining a lubricant dilution value with a dilution of the lubricant, wherein the internal combustion engine is started when a first threshold value is exceeded by the lubricant dilution value when the motor vehicle is located on a regeneration route of an anticipated driving route of the motor vehicle and the regeneration route is sufficient in order to reduce the lubricant dilution value by a specified value.2. The method according to claim 1 , wherein in order to determine whether the regeneration route is sufficient to reduce the lubricant dilution value by a specified value claim 1 , a route profile of the regeneration is evaluated claim 1 , wherein the route profile comprises a speed profile claim 1 , a height profile and a road class profile.3. The method according to claim 1 , wherein when a second threshold value is exceeded by the lubricant dilution value claim 1 , the internal combustion engine is ...

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Номер записи: 96
05-02-2015 дата публикации

CONTROL SYSTEM FOR MULTIFUEL INTERNAL COMBUSTION ENGINE

Номер: US20150034061A1
Автор: Eto Hiroshi, Masubuchi Masahiko, Sugiyama Kouseki, TANIGUCHI Satoshi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An object of the present invention is to reduce the difference between the torque generated by an internal combustion engine and a required torque in a control system for a multifuel internal combustion engine that can use CNG and liquid fuel. To achieve the object, the control system for an internal combustion engine according to the present invention causes the internal combustion engine to operate in a first operation mode in which only CNG is used, when the required torque of the internal combustion engine is equal to or lower than a threshold and to operate in a second operation mode in which at least liquid fuel among CNG and liquid fuel is used, when the required torque of the internal combustion engine is higher than the threshold and changes the magnitude of the threshold in conjunction with the concentration of inert gases contained in CNG. 17-. (canceled)8. A control system for a multifuel internal combustion engine , which controls switching between a first operation mode in which the internal combustion engine operates using only compressed natural gas and a second operation mode in which the internal combustion engine operates using at least liquid fuel among compressed natural gas and liquid fuel , comprising:determination unit for determining the concentration of inert gases contained in compressed natural gas; andchanging unit for changing a condition for switching between said first operation mode and said second operation mode in conjunction with the concentration of inert gases determined by said determination unit.9. A control system for a multifuel internal combustion engine according to claim 8 , whereinsaid condition for switching requires to cause the internal combustion engine to operate in the first operation mode when the required torque of the internal combustion engine is equal to or lower than a threshold and to cause the internal combustion engine to operate in the second operation mode when the required torque of the internal ...

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Номер записи: 97
30-01-2020 дата публикации

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

Номер: US20200030748A1
Автор: David Moses M., Seitz David Scott, Shirk Ryan C., Zhou Jinsheng
Принадлежит:

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

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Номер записи: 98
31-01-2019 дата публикации

Dual-fuel combustion engine

Номер: US20190032582A1
Автор: Dino Imhof, Georg Tinschmann, Michael Hillebrecht
Принадлежит: Innio Jenbacher GmbH and Co OG

A dual-fuel internal combustion engine with at least one combustion chamber, wherein the at least one combustion chamber is assigned to an intake valve for a gas-air mixture and an injector (I1 to I4) for liquid fuel, and a control device, which is designed in a switch-over mode to perform a switch-over, that an amount of energy supplied to the at least one combustion chamber through the gas-air mixture is changed, and a supplied amount of liquid fuel and/or a time of the injection of the liquid fuel is changed, and a combustion sensor whose signals are characteristic for the combustion process occurring in the at least one combustion chamber, wherein the control device is designed to carry out the switch-over using a stored relationship between a time progression of the signals of the combustion sensor and an introduced amount of gas-air mixture.

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Номер записи: 99
04-02-2021 дата публикации

FUEL SUPPLY SYSTEM AND ASSEMBLY FOR INJECTING LIQUEFIED VAPOUR UNDER HIGH PRESSURE INTO A COMBUSTION CHAMBER

Номер: US20210033032A1
Автор: JAASMA Servatius Alfons Maria
Принадлежит:

The present invention provides a fuel supply system for injecting a liquefied vapour under high pressure into a combustion chamber of a combustion engine, comprising: (i) a first petrol fuel supply tank; (ii) a second liquefied vapour fuel supply tank; (iii) a petrol fuel high-pressure pump; (iv) a liquefied vapour high-pressure pump; (v) a fuel selector switch for operating the fuel supply system in a petrol feeding state or in a liquefied vapour feeding state; (vi) a high-pressure rail downstream of said high-pressure pumps, with multiple injectors for direct injection of fuel into the combustion chambers; and wherein said liquefied vapour high-pressure pump further comprises a piston for transmitting the pressure of petrol fuel in said petrol chambers to the liquefied vapour fuel in said liquefied vapour chambers. 1. Fuel supply system for injecting a liquefied vapour , such as liquefied petroleum gas or dimethyl ether fuel , under high pressure into a combustion chamber of a combustion engine , comprising:(i) a first fuel supply tank for a petrol fuel equipped with a supply pump;(ii) a second fuel supply tank for liquefied vapour equipped with a supply pump;(iii) a petrol fuel high-pressure pump downstream of the first fuel supply tank;(iv) a liquefied vapour high-pressure pump downstream of the second fuel supply tank;(v) a fuel selector switch between said petrol fuel high-pressure pump and said liquefied vapour high-pressure pump for operating the fuel supply system in a petrol feeding state (P) or in a liquefied vapour feeding state (G);(vi) a high-pressure rail downstream of said petrol fuel high-pressure pump and downstream of said liquefied vapour high-pressure pump, with multiple injectors for direct injection of fuel into the combustion chambers;wherein said liquefied vapour high-pressure pump is arranged for receiving high-pressurized petrol from said petrol fuel high-pressure pump via said fuel selector switch in two petrol chambers (A, B), and for ...

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Номер записи: 100