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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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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2036. Отображено 100.
10-03-2013 дата публикации

Подогрев топлива при холодном запуске бензинового двигателя с непосредственным впрыском топлива

Номер: RU0000125633U1

Установлено, что бензиновые двигатели с непосредственным впрыском топлива выбрасывают твердые частицы на протяжении первых 500 секунд работы из-за топлива, ударяющегося о поверхности камеры сгорания. Для того чтобы значительно предотвратить попадание топлива на поверхности в камере сгорания, топливо можно подогревать. В одном варианте осуществления охлаждающая жидкость двигателя, которая нагревается в частях водяной рубашки, ближайших к выпускным каналам, подается непосредственно в трубку в физическом контакте с направляющей-распределителем для топлива. В некоторых вариантах осуществления трубка оснащена электрическим нагревательным элементом. Если в начальные части холодного запуска насос охлаждающей жидкости выключен, температуру топлива в направляющей-распределителе для топлива повышает электрический нагреватель. После того температура охлаждающей жидкости двигателя повышается, в трубку рядом с направляющей-распределителем для топлива подается вода, теплая охлаждающая жидкость, а нагреватель выключается. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 125 633 (13) U1 (51) МПК F02M 31/16 (2006.01) F02M 53/02 (2006.01) F02N 19/10 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2011141174/06, 11.10.2011 (24) Дата начала отсчета срока действия патента: 11.10.2011 (72) Автор(ы): УЛРИ Джозеф Норман (US), ПЕРСИФУЛЛ Росс Дикстра (US) (73) Патентообладатель(и): Форд Глобал Технолоджис, ЛЛК (US) R U Приоритет(ы): (30) Конвенционный приоритет: 11.10.2010 US 12/901,624 (45) Опубликовано: 10.03.2013 Бюл. № 7 1 2 5 6 3 3 R U (57) Формула полезной модели 1. Бензиновый двигатель с непосредственным впрыском топлива, содержащий: направляющую-распределитель для топлива; топливные форсунки, сообщающиеся с направляющей-распределителем для топлива и подающие топливо в цилиндры двигателя; и контур охлаждающей жидкости, содержащий насос охлаждающей жидкости, предназначенный для циркуляции охлаждающей жидкости через ...

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24-04-2017 дата публикации

Устройство для подогрева топлива

Номер: RU0000170369U1

Полезная модель относится к области транспорта, в частности к вспомогательному оборудованию работы систем автомобилей.Технической задачей полезной модели является совершенствование работы системы питания дизельным топливом при эксплуатации автомобилей семейства "Мустанг" в условиях низких температур.Техническая задача решена за счет того, что устройство для подогрева топлива содержит топливный бак, топливную трубку подачи топлива, соединенную через фильтр тонкой очистки, топливную трубку низкого давления, топливоподкачивающий насос с ТНВД и топливную трубку обратки, соединенную через перепускной клапан, топливопроводы высокого давления с ТНВД, отличающиеся тем, что конфигурация топливной трубки подачи топлива и топливной трубки обратки устанавливаются вокруг выпускной трубы отработавших газов. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 170 369 U1 (51) МПК F02M 31/16 (2006.01) F02M 53/02 (2006.01) F02M 55/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2015157307, 30.12.2015 (24) Дата начала отсчета срока действия патента: 30.12.2015 24.04.2017 Приоритет(ы): (22) Дата подачи заявки: 30.12.2015 (73) Патентообладатель(и): Федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулёва" (RU) Адрес для переписки: 199034, Санкт-Петербург, наб. Адмирала Макарова, 8, ВАМТО ООНР (54) УСТРОЙСТВО ДЛЯ ПОДОГРЕВА ТОПЛИВА (57) Формула полезной модели Устройство для подогрева топлива, содержащее топливный бак, топливную трубку подачи топлива, соединенную через фильтр тонкой очистки, топливную трубку низкого давления, топливоподкачивающий насос с ТНВД и топливную трубку обратки, соединенную через перепускной клапан, топливопроводы высокого давления с ТНВД, отличающееся тем, что конфигурация топливной трубки подачи топлива и топливной трубки обратки устанавливаются вокруг ...

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25-10-2012 дата публикации

Synchronous full-bridge oscillator

Номер: US20120267359A1
Автор: Perry Czimmek
Принадлежит: Continental Automotive Systems US Inc

An electronic high frequency induction heater driver, for a variable spray fuel injection system, uses a zero-voltage switching oscillator that utilizes a full H-bridge topology wherein the semiconductor switches are synchronized within the bridge for function. The induction heater driver, upon receipt of a turn-on signal, multiplies a supply voltage through a self-oscillating series resonance, wherein one component of the tank resonator circuit comprises an induction heater coil magnetically coupled to an appropriate loss component so that fuel inside a fuel component is heated to a desired temperature.

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22-11-2012 дата публикации

Method for controlling the temperature of an injector of an injection system for injecting fuel into the combustion chamber of an internal combustion engine

Номер: US20120291759A1
Автор: Martin Bernhaupt
Принадлежит: ROBERT BOSCH GMBH

A method for controlling the temperature of an injector of an injection system for injecting fuel into the combustion chamber of an internal combustion engine during the standstill of the internal combustion engine involves branching off a partial amount of the fuel as flush volume between a pre-supply pump and a high-pressure pump; conducting it through a heat exchanger for heating the fuel; and feeding the heated fuel to a high-pressure fuel storage (inside the injector) so that the flush volume flows through the high-pressure fuel storage to prevent fuel from solidifying.

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11-04-2013 дата публикации

Injection Nozzle System And Ceramic Nozzle Hood

Номер: US20130087634A1
Автор: Nagel Jurgen
Принадлежит: CATERPILLAR MOTOREN GMBH & CO. KG

A ceramic nozzle hood used in a fuel injection nozzle system. The ceramic nozzle hood comprises a first member contact face on the inner surface extending essentially in a radial direction with respect to the longitudinal axis and a collar. The collar comprises a second member contact face, which faces away from the injection side, and a mount contact face, which faces towards the injection side. The inner chamber of the ceramic nozzle hood comprises a blind hole section fluidly connected to a remaining section of the inner chamber along the longitudinal axis through the first member contact face and to an outside of the ceramic nozzle hood via a plurality of nozzle spray holes. 1. A ceramic nozzle hood configured to be used in a fuel injection nozzle system , the ceramic nozzle hood having an inner surface that surrounds an inner chamber , the inner chamber extending along a longitudinal axis and being closed at an injection side and open at a nozzle holder side , the injection side and the nozzle holder side being at opposite sides of the ceramic nozzle hood along the longitudinal axis , the ceramic nozzle hood comprising:at the injection side of the ceramic nozzle hood, a first member contact face on the inner surface of the ceramic nozzle hood, the first member contact face extending essentially orthogonally to the longitudinal axis and facing towards the nozzle holder side, andat the nozzle holder side of the ceramic nozzle hood, a collar comprising, on opposite sides, a second member contact face facing away from the injection side, and a mount contact face facing towards the injection side,wherein the inner chamber of the ceramic nozzle hood comprises a blind hole section at the injection side of the ceramic nozzle hood, the blind hole section being fluidly connected to a remaining section of the inner chamber along the longitudinal axis through the first member contact face and to an outside of the ceramic nozzle hood via a plurality of nozzle spray holes.2. ...

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02-05-2013 дата публикации

Fuel preheating system

Номер: US20130108970A1
Автор: Ahmet Donmez, Arif Canacik
Принадлежит: Yenbu Makine Sanayi ve Ticaret AS

The present invention provides fuel saving systems. Fuel consumption can be reduced by 5% to 40% or more by pre-combustion heating the fuels. The heat exhaust of a combustion chamber can be used to heat a heat transfer fluid, which exchanges heat with the incoming fuel stream.

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23-05-2013 дата публикации

FUEL INJECTOR HAVING DIFFERENTIAL TIP COOLING SYSTEM AND METHOD

Номер: US20130125859A1
Автор: Mishra Niraj Kumar
Принадлежит: GENERAL ELECTRIC COMPANY

According to various embodiments, a system includes a gasification fuel injector. The gasification fuel injector includes a tip portion, an annular coolant chamber disposed in the tip portion, and a first structural support extending through the annular coolant chamber. The first structural support divides the annular coolant chamber into a first passage and a second passage. 1. A system , comprising: a tip portion disposed at a fluid exit region of the gasification fuel injector;', 'an outermost conduit disposed between a fluid entrance region of the gasification fuel injector and the tip portion;', 'an annular coolant chamber disposed in the outermost conduit at the tip portion and between an annular inner wall of the outermost conduit and an annular outer wall of the outermost conduit, wherein the annular coolant chamber comprises a coolant entrance coupled to the annular coolant chamber and a coolant exit coupled to the annular coolant chamber;', 'at least one coolant line coupled to the coolant entrance; and', 'a first annular structural support extending through the annular coolant chamber between the annular inner wall and the annular outer wall, wherein the first annular structural support divides the annular coolant chamber into a first passage and a second passage, the first and second passages are configured to convey the coolant from the coolant entrance to the coolant exit in a circumferential direction through the annular coolant chamber., 'a gasification fuel injector, comprising2. The system of claim 1 , wherein the first annular structural support comprises a first flow divider wall that isolates the first and second passages relative to one another.3. The system of claim 1 , wherein the first passage has a smaller axial cross-sectional area than the second passage.4. The system of claim 1 , wherein the first passage is configured to flow a first coolant with a greater flow velocity than a second coolant flowing in the second passage.5. The system ...

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13-06-2013 дата публикации

Switch-Mode Synthetic Power Inductor

Номер: US20130146034A1
Автор: Perry Robert Czimmek
Принадлежит: Continental Automotive Systems Inc

A fuel delivery system for a vehicle includes a fuel injector that meters fuel flow and provides for preheating fuel to aid combustion. A control circuit including a synthetic inductor drives a heated element within the fuel flow.

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01-08-2013 дата публикации

Fuel injector

Номер: US20130193228A1
Принадлежит: Delphi Technologies Holding SARL

An electrical module for use within a fuel injector for delivering fuel to an internal combustion engine is described. The electrical module has a variable length. The electrical module comprises electrical contacts for operatively connecting the electrical module to a power plug of a fuel injector. The electrical module also comprises an actuator for operatively controlling a control valve disposed within the fuel injector. The electrical module also comprises electrical conductors arranged within a protective housing. These electrical conductors provide an electrical connection between the electrical contacts and the actuator in order to provide electrical power to the actuator when the electrical contacts are operatively connected to the power plug of the fuel injector. The body of the electrical module is comprised of a compressible elastic element, such that the length of the module is variable by compressing the elastic element. Injectors including such electrical modules are also described.

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29-08-2013 дата публикации

Dual solenoid fuel injector with selectively actuable input and output valves

Номер: US20130220283A1
Принадлежит: Transonic Combustion Inc

The present invention provides a fuel injector for an internal combustion engine. The fuel injector comprises a housing with an injector stem positioned inside the housing such that the injector stem comprises lower and upper portions. A first fluid chamber is located at the lower portion and a second fluid chamber is located at the upper portion with a seal positioned between the fuel chambers. A fuel duct is connected to the first fluid chamber and input and output ducts are connected to the second fluid chamber to allow fuel to fill and drain from the second fluid chamber. A first valve attached to the input duct and a second valve attached to the output duct are selectively actuable to open and close. The fuel injector further comprises a spring biasing the injector to a closed position, a heating element and a controller element.

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12-09-2013 дата публикации

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

Номер: US20130233284A1
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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12-09-2013 дата публикации

DUAL SOLENOID FUEL INJECTOR WITH SELECTIVELY ACTUABLE OUTPUT VALVE

Номер: US20130233941A1
Принадлежит: Transonic Combustion, Inc.

The present invention provides a fuel injector for an internal combustion engine. The fuel injector comprises a housing with an injector stem positioned inside the housing such that the injector stem comprises lower and upper portions. A first fluid chamber is located at the lower portion and a second fluid chamber is located at the upper portion with a seal positioned between the fuel chambers. A fuel duct is connected to the first fluid chamber and input and output ducts are connected to the second fluid chamber to allow fuel to fill and drain from the second fluid chamber. A first valve is attached to the output duct and is selectively actuable to open and close. The fuel injector further comprises a spring biasing the injector to a closed position, an orifice needle hole in the input duct for controlling flow of fluid, a heating element and a controller element. 1. A fuel injector for an internal combustion engine comprising:a housing having an upper and a lower portion;an injector stem positioned inside the housing, wherein the injector stem comprises a lower portion and an upper portion;a first fluid chamber for receiving pressurized fuel at the lower portion of the injector stem;a second fluid chamber for receiving pressurized fuel at the upper portion of the injector stem;a seal positioned between the first fluid chamber and the second fluid chamber to separate the chambers;a fuel duct connected to the first fluid chamber;an input duct connected to the second fluid chamber for allowing fuel to fill the second fluid chamber;an output duct connected to the second fluid chamber for allowing fuel to drain from the second fluid chamber;a return spring attached to the injector stem, the return spring biasing the injector stem to a closed position;a first valve attached to said output duct, the first valve being selectively actuable to open and close the output duct to drain fuel from the second fluid chamber;an orifice needle hole positioned in the input duct for ...

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03-10-2013 дата публикации

Fluid activating apparatus

Номер: US20130255795A1
Автор: Heuk Gyu Lee
Принадлежит: Individual

Disclosed is a fluid activating apparatus having a case unit including a first body which has a hollow cylindrical structure with open both ends, and which has an accommodation space for providing a flow channel for passage of fluid, and which has first coupling portions formed at one end and the other end thereof, a second body which is arranged to cover an outer surface of the first body and which has a separation space spaced apart from a portion of the outer surface of the first body by a predetermined gap, and a first cap and a second cap which are coupled to the respective first coupling portions, and each of which has a fluid inlet port and a fluid outlet port; a magnetic force generating unit which is arranged in the accommodation space of the case unit such that the magnetic force generating unit has a central axis that is the same as that of the first body and has a diameter smaller than that of the first body, wherein the magnetic force generating unit is arranged along the flow path of the fluid so as to provide the fluid passing through the accommodation space with magnetic force; a support plate which is arranged in the accommodation space to support the magnetic force generating unit, and which has a mounting groove for insertion of one end of the magnetic force generating unit, and has a plurality of guide holes penetrating through one side and the other side thereof to guide the fluid introduced through the inlet port to the accommodation space; a magnetic force receiving unit interposed between the first body and the second body so as to be magnetized by the magnetic force generated by the magnetic force generating unit and provide the fluid passing through the gap between an outer surface of the magnetic force generating unit and an inner surface of the first body with magnetic force; and a heat blocking unit interposed between the magnetic force receiving unit and the second body to cut off heat transferred from the outside of the case unit to ...

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10-10-2013 дата публикации

High-pressure pump

Номер: US20130266465A1
Принадлежит: Toyota Motor Corp

A high-pressure pump includes a plunger capable of reciprocating, and a housing having a pressurizing chamber in which fuel is pressurized by the plunger, and a fuel chamber through which the fuel flows toward and from the pressurizing chamber. The pump includes a spring that biases the plunger so as to increase the volume of the pressurizing chamber, and a spring seat that is fixed to the housing and is in contact with one end of the spring. A first space that communicates with the fuel chamber via a fuel passage is provided between the bottom of the spring seat and the housing, and a top face of the bottom exposed to the first space is covered with a heating insulating member.

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21-11-2013 дата публикации

System and Method for Internal Cooling of a Fuel Injector

Номер: US20130306750A1
Принадлежит: CATERPILLAR INC.

A fuel injector includes an injector body forming an actuator portion. An actuator bore is formed in the actuator portion and is at least partially defined by an inner surface and by an end surface. An actuator disposed in the actuator bore and has an outer surface such that a flow channel can be defined between the inner surface of the actuator bore and the outer surface of the actuator. A cooling flow passage is formed in the injector body, in fluid communication with the actuator bore, and is adapted to supply cooling fluid to the actuator bore. A drain passage is formed in the injector body, in fluid communication with the actuator bore. An internal cooling fluid flow path extends from the cooling flow passage, through the flow channel, and from the flow channel through the drain passage. 1. A method of reducing deposits in a fuel injector , the fuel injector including a valve actuator being in fluid communication with a cooling fuel inlet , a flow passage , and a drain passage formed in the fuel injector , the fuel injector defining a cooling passage having the flow passage that at least partially surrounds the valve actuator , the method comprising:passing cooling fuel to the cooling fuel inlet of the fuel injector, the cooling fuel being separate from injection fuel;distributing cooling fuel at least partially around the valve actuator through the flow passage;removing heat from the valve actuator by absorbing heat from the actuator with the cooling fuel; andmaintaining an internal temperature of the fuel injector below a predetermined debris forming temperature such that an amount of deposits forming on internal components of the fuel injector is reduced.2. The method of claim 1 , further including distributing the flow of cooling fuel around the actuator claim 1 , collecting the flow of cooling fuel into the drain passage claim 1 , and routing the flow of cooling fluid from the drain passage into a reservoir.3. The method of claim 1 , wherein removing heat ...

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19-12-2013 дата публикации

FUEL SUPPLY DEVICE

Номер: US20130333644A1
Принадлежит:

A device capable of supplying an internal combustion engine with a first fuel F of a high octane number fuel, and a second fuel F of a low octane number fuel or a raw fuel F The device is equipped with a cooling medium circulating path LL configured to perform heat exchange between a cooling medium for cooling the internal combustion engine and a separator The device adjusts a flow rate of the cooling medium in the cooling medium circulating path LL, so that a separator temperature T is contained in a predetermined temperature range, according to T a raw fuel temperature T and a cooling medium temperature T 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 the raw fuel or a second fuel which contains a larger number of low octane number components than 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 which separates the raw fuel into the first fuel and the second fuel;a raw fuel path configured to discharge the raw fuel from the raw fuel tank to the separator by a raw fuel discharge device; anda cooling medium circulating path configured to circulate a cooling medium for cooling the internal combustion engine,wherein the cooling medium circulating path is configured to perform heat exchange between the cooling medium circulating in the cooling medium circulating path and the separator, andthe fuel supply device further comprises a flow rate adjusting mechanism which adjusts a flow rate of the cooling medium in the cooling medium circulating path, taking at least one of a first temperature which is a temperature of the separator, a second temperature which is a temperature of the raw fuel in the raw fuel path, and a third temperature which is a temperature of the cooling medium ...

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10-04-2014 дата публикации

Fuel injector with a trimmable heater and an increased heater contact area

Номер: US20140097269A1
Принадлежит: Delphi Technologies Inc

A fuel injector wherein a cylindrical surface supports an electrical heating structure covering 360° or almost 360° of the surface for heating fuel. The structure comprises a first dielectric layer adhered to the surface; a thick film resistance heating element; a second dielectric layer; spaced-apart first and second conductor pads, wherein the first conductor pad is disposed in contact with a dielectric layer and a first end of the heating element, and wherein the second conductor pad is disposed in contact with a dielectric layer and a second end of the heating element. Another dielectric layer may be disposed over the preceding layers and the first and second conductor pads and having first and second windows formed therein for access to the first and second conductor pads. The resistance heating element may selectively be trimmed by overprinting in a pattern one or more times to improve the uniformity of heating.

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01-01-2015 дата публикации

Cap assembly for a bundled tube fuel injector

Номер: US20150000284A1
Принадлежит: General Electric Co

A cap assembly for a bundled tube fuel injector includes an impingement plate and an aft plate that is disposed downstream from the impingement plate. The aft plate includes a forward side that is axially separated from an aft side. A tube passage extends through the impingement plate and the aft plate. A tube sleeve extends through the impingement plate within the tube passage towards the aft plate. The tube sleeve includes a flange at a forward end and an aft end that is axially separated from the forward end. A retention plate is positioned upstream from the impingement plate. A spring is disposed between the retention plate and the flange. The spring provides a force so as to maintain contact between at least a portion of the aft end of the tube sleeve and the forward side of the aft plate.

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03-01-2019 дата публикации

LOW NITROGEN OXIDE EMISSION WATER HEATER

Номер: US20190003426A1
Принадлежит:

A water heater has a gas burner in a combustion chamber below a tank. The burner has a venturi tube oriented in a collection housing, which receives a mixture of air and fuel from a duct at least partially protruding from a periphery of an exterior wall of the water heater. In some embodiments, the duct abuts the venturi tube within a collection housing in the combustion chamber. 1. A water heater comprising:a tank defining a first volume for holding water and having a lower tank wall beneath the first volume, wherein the lower tank wall defines a first surface opposite the first volume;at least one side wall extending below the lower tank wall about a periphery of the tank, thereby defining a second surface;a bottom wall adjoining the at least one side wall opposite the lower tank wall, thereby defining a third surface, so that the first surface, the second surface, and the third surface define a second volume;a duct in communication with an ambient air source external to the second volume so that a third volume at least partially bounded by the duct receives air from the ambient air source, wherein the duct is in fluid communication with a pressurized fuel gas source so that the third volume receives a flow of fuel gas from the pressurized fuel gas source and so that the ambient air and fuel gas flow out of the third volume at least partially bounded by the duct in an output flow, and wherein at least a portion of the volume at least partially bounded by the duct is disposed outward of the second volume and the periphery; anda burner assembly partially disposed within the second volume, wherein the burner assembly comprisesa collection housing defining an inlet that receives the output flow and that defines an enclosure in fluid communication with the inlet so that the enclosure receives the ambient air and the fuel gas from the output flow for mixture in the enclosure, wherein the collection housing bounds the ambient air and fuel gas within the enclosure except ...

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09-01-2020 дата публикации

ROTARY INTERNAL COMBUSTION ENGINE WITH PILOT SUBCHAMBER AND IGNITION ELEMENT

Номер: US20200011234A1
Принадлежит:

A rotary engine includes an insert having a pilot subchamber defined therein and communicating with the internal cavity of the engine. A pilot fuel injector has a tip in communication with the pilot subchamber. An ignition element extends into an element cavity defined through the insert adjacent the pilot subchamber. The element cavity is in communication with the pilot subchamber through a communication opening defined in the insert between the element cavity and the pilot subchamber. The communication opening is smaller than a portion of the ignition element adjacent the communication opening such as to prevent the portion of the ignition element from completely passing through the communication opening upon breaking off of the portion of the ignition element from a remainder of the ignition element. An outer body for a rotary engine and a method of combusting fuel in a rotary engine are also provided. 1. A method of combusting fuel in a rotary engine having a rotor rotating in a cavity , the method comprising:injecting a minor portion of the fuel into a subchamber defined in an insert of the engine;activating a portion of an ignition element received in the insert, the portion of the ignition element located adjacent a communication opening defined through the insert and communicating with the subchamber, the communication opening being sized to prevent the portion of the ignition element from completely passing therethrough upon breaking off of the portion of the ignition element from a remainder of the ignition element;igniting the minor portion of the fuel in the subchamber by exposing the portion of the ignition element to the minor portion of the fuel through the communication opening;circulating the ignited minor portion of the fuel from the subchamber to the cavity; andinjecting a remaining portion of the fuel into the cavity.2. The method as defined in claim 1 , wherein the ignition element is a heating element claim 1 , the method further including ...

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15-01-2015 дата публикации

Pressure Compensated Fuel Injector

Номер: US20150014449A1
Автор: DONOVAN Brian, McKaig Ray
Принадлежит: MCVAN AEROSPACE, LLC

A method of operating a pressure compensated fuel injector includes: filling a fuel chamber with a charge of fuel by closing an injector valve and circulating a fuel from a fuel source through a plurality of recirculating valves and a cap valve; then isolating the fuel chamber and the charge of fuel from the fuel source; then equalizing a pressure within the fuel chamber to a rising pressure outside the fuel chamber by reducing a volume of the isolated fuel chamber; and then activating a solenoid that is coupled to the injector valve, opening the injector valve; and then further reducing the volume of the isolated fuel chamber to apply an over pressure within the chamber, pumping fuel from the fuel chamber through the injection orifice. 110-. (canceled)11. A method , comprising operating a pressure compensated fuel injector including:filling a fuel chamber defined by a pressure tube, a piston cylinder, a plurality of recirculation valves, a piston, an injection valve, an injection orifice, a cap and a cap valve with a charge of fuel by closing the injector valve and circulating a fuel from a fuel source through the plurality of recirculating valves and the cap valve; thenisolating the fuel chamber and the charge of fuel from the fuel source by closing the plurality of recirculating valves and the cap valve; thenequalizing a pressure within the fuel chamber to a rising pressure outside the fuel chamber by reducing a volume of the isolated fuel chamber by moving the piston relative to the piston cylinder toward the cap; and then opening the injector valve; and then', 'further reducing the volume of the isolated fuel chamber to apply an over pressure within the chamber, thereby pumping fuel from the fuel chamber through the injection orifice., 'activating a solenoid that is coupled to the injector valve, thereby'}12. The method of claim 11 , further comprising opening the plurality of recirculating valves and the cap valve before filling.13. The method of claim 11 , ...

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18-01-2018 дата публикации

FUEL HEATING DEVICE FOR VEHICLE AND METHOD THEREOF

Номер: US20180017029A1
Автор: SEO Yoo Jin
Принадлежит: HYUNDAI MOTOR COMPANY

A fuel heating device for a vehicle may include a start sensor detecting a starting of a vehicle; a controller area network (CAN) communication device transmitting and receiving various signals to and from an engine control device; a resistance sensor measuring a resistance of a heater provided inside an injector; and a controller controlling the resistance sensor to measure the resistance of the heater when the starting of the vehicle is detected in a state in which a failure occurs in the CAN communication device, converting the measured resistance of the heater into a temperature of a fuel, and operating the heater to heat the fuel to a reference temperature when the converted temperature is lower than or equal to a threshold. 1. A fuel heating device for a vehicle , comprising:a start sensor detecting a starting of the vehicle;a controller area network (CAN) communication device transmitting and receiving various signals to and from an engine control device;a resistance sensor measuring a resistance of a heater provided inside an injector; anda controller controlling the resistance sensor to measure the resistance of the heater when the starting of the vehicle is detected in a state in which a failure occurs in the CAN communication device, converting the measured resistance of the heater into a temperature of a fuel, and operating the heater to heat the fuel to a reference temperature when the converted temperature is lower than or equal to a threshold.2. The fuel heating device according to claim 1 , wherein the controller operates the heater unless a number of operating the heater in a state in which the failure occurs in the CAN communication device exceeds a predetermined value.3. The fuel heating device according to claim 1 , wherein the fuel heated by the heater is one of ethanol claim 1 , a fuel mixture of ethanol and gasoline claim 1 , and gasoline.4. The fuel heating device according to claim 3 , wherein when the fuel heated by the heater is ethanol ...

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17-01-2019 дата публикации

PRESS-FIT SLEEVE FOR A CYLINDER HEAD

Номер: US20190017464A1
Автор: Schlee Dimitri
Принадлежит:

A press-fit sleeve for sealing and cooling a component projecting through a fire deck opening in the cylinder head of an internal combustion engine is described. The press-fit sleeve includes a connecting point at a first end of the press-fit sleeve, said connecting point being designed for press fitting into an indentation at an end of the fire deck opening that faces away from a combustion chamber. Furthermore, the press-fit sleeve includes a radially inwardly protruding step at a second end of the press-fit sleeve lying opposite the first end. Between the first end and the second end, the press-fit sleeve includes a lateral surface which is closed in a fluid-tight manner and is or can be brought into contact with a water jacket surrounding the press-fit sleeve. 1. A press-fit sleeve for sealing and cooling a component projecting through a fire deck opening in a cylinder head of an internal combustion engine , comprising:a connecting point at a first end of the press-fit sleeve, said connecting point being designed for press fitting into an indentation at an end of the fire deck opening that faces away from a combustion chamber;a radially inwardly protruding step at a second end of the press-fit sleeve lying opposite the first end; anda lateral surface of the press-fit sleeve, said lateral surface being closed fluid-tightly between the first end and the second end and being or being able to be brought into contact with a water jacket surrounding the press-fit sleeve.2. The press-fit sleeve according to claim 1 , wherein the component comprises an injection nozzle and/or a spark plug.3. The press-fit sleeve according to claim 1 , wherein the connecting point comprises a cylindrical pressing surface.4. The press-fit sleeve according to claim 3 , wherein an axial extent of the connecting point is much smaller than an axial length of the press-fit sleeve.5. The press-fit sleeve according to claim 1 , wherein the connecting point comprises a radially inwardly curved ...

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10-02-2022 дата публикации

FUEL HEATER

Номер: US20220042483A1
Принадлежит: AISIN CORPORATION

A fuel heater including an engine that is driven by combustion of air-fuel mixture including air and fuel supplied to a combustion chamber within a cylinder, a battery that stores electricity, and a motor that drives the engine by the electricity supplied from the battery, the fuel heater includes a fuel heating portion heating the fuel with the electricity supplied from the battery, and a controller performing one of a first control by increasing the amount of electricity supplied from the battery to the fuel heating portion and a second control by increasing heating time of the fuel by the fuel heating portion for a time period until the engine starts in a case where a battery charge remaining of the battery is equal to or smaller than a remaining threshold value at a start of the engine. 1. A fuel heater for a vehicle , the vehicle including an engine that is driven by combustion of air-fuel mixture including air and fuel supplied to a combustion chamber within a cylinder , a battery that stores electricity , and a motor that drives the engine by the electricity supplied from the battery , the fuel heater comprising:a fuel heating portion heating the fuel with the electricity supplied from the battery; anda controller performing one of a first control by increasing the amount of electricity supplied from the battery to the fuel heating portion and a second control by increasing heating time of the fuel by the fuel heating portion for a time period until the engine starts in a case where a battery charge remaining of the battery is equal to or smaller than a remaining threshold value at a start of the engine.2. The fuel heater according to claim 1 , whereinthe remaining threshold value is a battery lower limit serving as a lower limit of electricity for operating the fuel heating portion and the engine,the controller increases the amount of electricity supplied from the battery to the fuel heating portion for the time period until the engine starts in a case where ...

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24-04-2014 дата публикации

FUEL RAIL MADE OF A PLASTIC MATERIAL WITH A HEATING SYSTEM

Номер: US20140109881A1
Принадлежит: ROBERT BOSCH LIMITADA

The present invention refers to a fuel rail made of plastic material with a heating system (). The said rail is applied, mainly, in the form of devices for aiding the cold start of engines which consume fuels whose specific vaporization heat is high, for example, alcohol. The fuel rail made of plastic material with a heating system presents reduced cost and weight and the same functional characteristics if compared to the fuel rails known by the state of the art, which are usually made of metal. Furthermore, the said fuel rail made of plastic material with a heating system presents internal compartments configured in such a manner that the slider sliders containing slide pins () of the injection mold can be easily removed, since there is no formation of negative faces. 110100. A single piece fuel rail made of plastic material with a heating system (; ) for internal combustion engines with a cold start system , the fuel rail comprising:{'b': '11', 'a main tube ();'}{'b': 34', '11', '13, 'at least one orifice () which connects the main tube () to at least one superior secondary duct ();'}{'b': 13', '16, 'the at least one superior secondary duct () including a heating element ();'}{'b': 16', '4', '13, 'the heating element () including a lance () for the transmission of heat to fuel and a base for sealing the at least one superior secondary duct ();'}{'b': 19', '33', '13, 'at least one inferior secondary duct () which possesses a fuel sending element () which is located in a substantially superior region of an internal part of the superior secondary duct (),'}{'b': 11', '13', '13', '38', '38', '11', '13, 'wherein the main tube () is located in a region next to a superior extremity of the superior secondary duct (), the superior secondary duct () contains at least one internal duct (), wherein the at least one internal duct () conducts fuel from the main tube () to an inferior extremity of the superior secondary duct ().'}271387172. The rail claim 1 , according to claim ...

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04-02-2016 дата публикации

Systems for thermal management of engine valves

Номер: US20160032868A1
Принадлежит: General Electric Co

Various methods and systems are provided for cooling gas admission valves configured to admit gaseous fuel to an engine. In one embodiment, a system comprises an intake manifold including a gaseous fuel line for supplying gaseous fuel to a plurality of cylinders of an engine configured to combust the gaseous fuel, and at least one gas admission valve mounted to the gaseous fuel passage for regulating admission of the gaseous fuel to the plurality of cylinders. The system further includes a thermal management system configured to direct thermal fluid to the plurality of gas admission valves.

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01-05-2014 дата публикации

FUEL SUPPLY SYSTEM AND FUEL SUPPLY METHOD FOR INTERNAL COMBUSTION ENGINE

Номер: US20140116394A1
Принадлежит:

A fuel supply system for an internal combustion engine includes a heat exchanger that has a heat exchanging wall between a liquefied fuel passage and an engine coolant passage. Heated and vaporized fuel flowing out from the liquefied fuel passage of the heat exchanger is supplied to the internal combustion engine. A flow rate of liquefied fuel supplied to the liquefied fuel passage of the heat exchanger is set. A flow rate of engine coolant supplied to the engine coolant passage of the heat exchanger is determined on the basis of a temperature of the engine coolant supplied to the engine coolant passage of the heat exchanger such that nucleate boiling or transition boiling of the liquefied fuel in the set flow rate occurs near a boundary between nucleate boiling and transition boiling in the liquefied fuel passage. 15-. (canceled)6. A fuel supply system for an internal combustion engine , which supplies heated and vaporized fuel to the internal combustion engine , comprising:a heat exchanger that has a heat exchanging wall between a liquefied fuel passage and an engine coolant passage, whereinthe heated and vaporized fuel flows out from the liquefied fuel passage of the heat exchanger,a flow rate of liquefied fuel supplied to the liquefied fuel passage of the heat exchanger is set, anda flow rate of engine coolant supplied to the engine coolant passage of the heat exchanger is determined on the basis of a temperature of the engine coolant supplied to the engine coolant passage of the heat exchanger such that nucleate boiling or transition boiling of the liquefied fuel in a set flow rate occurs near a boundary between nucleate boiling and transition boiling in the liquefied fuel passage.7. The fuel supply system according to claim 6 , wherein the liquefied fuel is a gaseous combustible material at ordinary temperatures and pressures.8. The fuel supply system according to claim 7 , wherein the liquefied fuel is any one of a combustible material having a boiling point ...

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05-02-2015 дата публикации

Injection Nozzle for Injecting Media into a Combustion Chamber

Номер: US20150034051A1
Автор: Heinrich Werger
Принадлежит: ROBERT BOSCH GMBH

An injection nozzle for injecting media into a combustion chamber includes a nozzle body having a tip with spray holes and protruding into the combustion chamber, and a heat protection sleeve that surrounds and is positioned on a combustion chamber side of an end area of the nozzle body. The injection nozzle is inserted into an accommodating hole of a retaining part, whereby the end area of the nozzle body interacts with the accommodating hole, and whereby the sleeve is positioned there-between. The sleeve further has a first and second area which are located at an axial distance from each other and which have respective sealing surfaces that interact in a sealing manner with either (i) an annular seat surface extending in a radial plane, or (ii) a cone-shaped seat surface of the accommodating hole or of the nozzle body.

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31-01-2019 дата публикации

DEPOSIT MITIGATION FOR GASEOUS FUEL INJECTORS

Номер: US20190032618A1
Принадлежит:

A method for deposit mitigation in a gaseous fuel injector that introduces a gaseous fuel through a gaseous fuel orifice directly into a combustion chamber of an internal combustion engine includes at least one of a) reducing the ago length of the gaseous fuel orifice by substantially between 10% to 50% of a previous length of a previous gaseous fuel orifice showing deposit accumulation above a predetermined threshold; b) providing the gaseous fuel orifice with an inwardly and substantially linearly tapering profile; c) determining deposit mitigation is needed; and performing at least one of the following deposit mitigation techniques i) increasing gaseous fuel injection pressure wherein deposit accumulation is reduced during fuel injection; and ii) decreasing gaseous fuel temperature wherein a rate of deposit accumulation is reduced; and d) injecting compressed air through the gaseous fuel orifice during shutdown of the internal combustion engine; whereby torque loss in the internal combustion engine due to deposit accumulation in the gaseous fuel orifice is reduced below a predetermined value. 1. A method for deposit mitigation in a gaseous fuel injector that introduces a gaseous fuel through a gaseous fuel orifice directly into a combustion chamber of an internal combustion engine comprising at least one of:a) reducing the length of the gaseous fuel orifice by substantially between 10% to 50% of a previous length of a previous gaseous fuel orifice showing deposit accumulation above a predetermined threshold;b) providing the gaseous fuel orifice with an inwardly and substantially linearly tapering profile;c) determining deposit mitigation is needed; i) increasing gaseous fuel injection pressure whereby deposit accumulation is reduced during fuel injection; and', 'ii) decreasing gaseous fuel temperature whereby a rate of deposit accumulation is reduced; and, 'd) performing at least one of the following deposit mitigation techniquese) injecting compressed air ...

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08-02-2018 дата публикации

TEMPERATURE-CONTROLLABLE ENGINE FUEL SUPPLY DEVICE

Номер: US20180038323A1
Автор: Huang Hung-Yi
Принадлежит:

A temperature-controllable engine fuel supply device is used to feed fuel into a fuel inlet () of an engine (). The temperature-controllable engine fuel supply device includes a fuel tank () for receiving the fuel, a cooling unit () and a nozzle (). The cooling unit () communicates with the fuel tank () to cool the fuel. The nozzle () is disposed corresponding to the fuel inlet () to jet the fuel toward the fuel inlet (). A cooling path (P) through which the fuel passes is from the cooling unit (), through the nozzle (), to the fuel inlet (). A temperature sensor (), () is installed on the cooling path (P) to detect temperature of the fuel, so temperature of the fuel is controlled to be within an ideal range before the fuel enters the engine (). 1404. A temperature-controllable engine fuel supply device , for feeding fuel into a fuel inlet () of an engine () , comprising:{'b': '1', 'a fuel tank () for receiving the fuel;'}{'b': 2', '2', '1', '10', '1', '10', '2, 'a cooling unit (), the cooling unit () communicating with the fuel tank () through a first fuel pipe (), wherein the fuel from the fuel tank () passes through the first fuel pipe () and then enters the cooling unit () to be cooled; and'}{'b': 3', '40', '4', '3', '2', '20', '2', '20', '3', '40', '4', '2', '20', '3', '40', '21', '31, 'a nozzle () disposed corresponding to the fuel inlet () of the engine (), the nozzle () communicating with the cooling unit () through a second fuel pipe (), wherein the fuel from the cooling unit () passes through the second fuel pipe () and is jetted from the nozzle () toward the fuel inlet () of the engine (), wherein a cooling path (P) is defined from the cooling unit (), through the second fuel pipe (), through the nozzle (), to the fuel inlet (), and a temperature sensor (), () detects temperature of the fuel passing through the cooling path (P).'}23131340. The temperature-controllable engine fuel supply device according to claim 1 , wherein the temperature sensor at least ...

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08-02-2018 дата публикации

HIGH PRESSURE GASOLINE INJECTOR SEAT TO REDUCE PARTICLE EMISSIONS

Номер: US20180038329A1
Автор: Imoehl William James
Принадлежит: CONTINENTAL AUTOMOTIVE SYSTEMS, INC.

A fuel injector has a seat and at least one seat passage. The seat includes an outer tip surface through which the seat passage extends. Fin structure is provided in the outer tip surface and is constructed and arranged to increase a surface area of the outer tip surface as compared to a surface area of the outer tip surface absent the fin structure. The outer tip surface, including the fin structure, is constructed and arranged to be heated by combustion gases so that the outer tip surface reaches a temperature greater than a temperature that the outer tip surface would reach absent the fin structure, so as to cause evaporation of fuel that contacts the outer tip surface. 1. A fuel injector having an inlet , an outlet , and a passageway providing a fuel flow conduit from the inlet to the outlet , the fuel injector comprising:a valve structure movable in the passageway between a first position and a second position;a seat, at the outlet, having at least one seat passage in communication with the passageway, the seat contiguously engaging a portion of the valve structure in the first position thereby closing the at least one seat passage and preventing fuel from exiting the at least one seat passage, the valve structure in the second position being spaced from the at least one seat passage so that fuel can move through the passageway and exit through the at least one seat passage, the seat including an outer tip surface through which the least one seat passage extends, andfin structure provided in the outer tip surface and constructed and arranged to increase a surface area of the outer tip surface as compared to a surface area of the outer tip surface absent the fin structure,wherein the outer tip surface, including the fin structure, is constructed and arranged to be heated by combustion gases so that the outer tip surface reaches a temperature greater than a temperature that the outer tip surface would reach absent the fin structure, so as to cause evaporation of ...

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24-02-2022 дата публикации

FUEL INJECTOR HAVING NOZZLE SPRAY HOLES WITH GROOVES

Номер: US20220056874A1
Принадлежит: Cummins Inc.

An injector includes a nozzle body extending along a longitudinal axis and at least one spray hole extending through a portion of the nozzle body to output a fluid from the injector. The spray hole includes at least one groove. The groove is configured to facilitate efficient mixing of the fluid with air or other surrounding materials for enhanced performance of the injector and/or other components associated with the injector. 1. A method of forming a portion of a nozzle for an injector , comprising:providing a heating device;forming at least one spray hole within the nozzle; andforming, with the heating device, a groove in a helical configuration along an inner surface of at least a portion of the at least one spray hole.2. The method of claim 1 , wherein the heating device is a laser.3. The method of claim 1 , wherein a cross-sectional profile of each of the groove is generally rounded.4. The method of claim 1 , wherein the groove defines at least four grooves and each groove has a helical configuration along the inner surface.5. An injector claim 1 , comprising:a nozzle body; andat least one spray hole extending through a portion of the nozzle body and configured to output a fluid from the nozzle body, and the at least one spray hole includes at least four helical grooves.6. The injector of claim 5 , wherein the at least four helical grooves are evenly spaced about the at least one spray hole.7. The injector of claim 5 , wherein the at least four helical grooves include up to 24 helical grooves.8. The helical grooves of claim 7 , wherein the at least four helical grooves include 6-24 helical grooves.9. The injector of claim 5 , wherein each of the at least four helical grooves is defined by a cross-sectional height claim 5 , and the cross-sectional height is approximately 10-150 microns.10. The injector of claim 5 , wherein a cross-sectional profile of each of the at least four helical grooves is generally rounded.11. An injector claim 5 , comprising:a nozzle ...

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07-02-2019 дата публикации

Injector of an over-enriched fuel-and-air mixture to the combustion chamber of internal combustion engines

Номер: US20190040828A1
Принадлежит: Instytut Lotnictwa

The invention relates to a fuel injector for injecting an over-enriched fuel and air mixture to the combustion chamber of an internal combustion engine, is characterised in that it comprises: 1. A fuel injector for injecting an over-enriched fuel and air mixture to the combustion chamber of an internal combustion engine , characterised in that it comprises{'b': 1', '2', '3', '4, 'a hydrocarbon liquid fuel spray nozzle (), at least one supply of a gaseous carrier (), a fuel mixing and evaporation chamber () and an injector nozzle () to the engine combustion chamber (C.C.),'}configured such that, during operation,{'b': 2', '3', '1', '4, 'liquid fuel is supplied and heated and compressed gaseous carrier () are supplied to the fuel mixing and evaporation chamber () of this injector through the spray nozzle (), where they are mixed and evaporated as a result of elevated temperature, and the mixture of evaporated fuel with a hot gaseous carrier with low oxygen content thus formed reaches the combustion chamber (C.C.), through the outlet (), wherein'}the gaseous carrier is air or, alternatively, flue gas, at elevated pressure and temperature and having a composition that prevents the initiation of flame combustion, andthe gaseous carrier has oxygen content low enough to prevent the initiation of combustion, even under conditions of elevated pressure and temperature.23. The injector according to claim 1 , wherein a gaseous carrier comprising air/oxidant claim 1 , flue gas claim 1 , air and flue gas claim 1 , vapour claim 1 , an addition thereof or a combination of all the components claim 1 , is mixed in the injector chamber () with heated fuel.31323. The injector according to claim 1 , wherein the injection of fuel () into the mixing chamber () is arranged coaxially relative to the symmetry axis of the mixing chamber claim 1 , while the intake of the gaseous carrier () is arranged axially claim 1 , tangentially or radially relative to the lateral surface of the mixing ...

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07-02-2019 дата публикации

CONTROL METHOD AND CONTROL DEVICE OF DIRECT INJECTION INTERNAL COMBUSTION ENGINE

Номер: US20190040830A1
Принадлежит: NISSAN MOTOR CO., LTD.

An object of a control method to control a direct injection internal combustion engine that directly injects fuel in a cylinder is to reduce an increase in PN caused by attachment of the fuel to a fuel injection valve distal end. The control method cools the fuel before a fuel temperature when the fuel passes through an injection hole on a fuel injection valve reaches a temperature at which an amount of attached fuel to the fuel injection valve distal end increases. 1. A control method of direct injection internal combustion engine that directly injects fuel in a cylinder , wherein:the direct injection internal combustion engine includes an engine cooling passage including a cylinder head cooling passage and a cylinder block cooling passage independent of one another, andthe control method comprises:performing a fuel temperature control mode that increases a coolant flow rate of the cylinder head cooling passage before a fuel temperature when the fuel passes through an injection hole on a fuel injection valve reaches a temperature at which flash boiling occurs to cool the fuel, the fuel injection valve having a property of the fuel attaching to a peripheral area of the injection hole when the injected fuel causes the flash boiling and an angle of spray of fuel spray increases; andperforming a transition from a radiator flow passage control mode to the fuel temperature control mode when the fuel temperature rises during an execution of the radiator flow passage control mode, the radiator flow passage control mode including a first mode and a second mode, the first mode being configured to control a cylinder block and a cylinder head to have an identical temperature, the second mode being configured to control the cylinder head to have a temperature lower than a temperature of the cylinder block.2. A control device of direct injection internal combustion engine that directly injects fuel in a cylinder , wherein: an engine cooling passage including a cylinder head ...

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18-02-2016 дата публикации

HEAT TRANSFER SYSTEMS FOR INTERNAL COMBUSTION ENGINES AND METHODS

Номер: US20160047344A1
Принадлежит:

A heat transfer system for use in an internal combustion engine and related methods are disclosed. The heat transfer system may be configured to absorb and transfer heat from a combustion chamber of an internal combustion engine. The heat transfer system may also be configured to reintroduce absorbed and/or transferred heat into the internal combustion engine via a fuel injector or another suitable device. Removal of the heat from the combustion chamber may reduce a quantity of work required or used for compression of a first combustion fluid, increase a charge density in the combustion chamber, and/or increase the compression ratio of the engine. Additionally, the heat transfer system may be designed such that it may be used to retrofit an existing internal combustion engine. 1. A spark-ignition internal combustion engine comprising:a combustion chamber; anda heat absorption element in communication with an interior volume of the combustion chamber, wherein the heat absorption element is configured to absorb at least a portion of an amount of heat generated by work done on a first combustion fluid disposed in the interior volume of the combustion chamber.2. The engine of claim 1 , wherein the heat absorption element is further configured to transfer at least a portion of the absorbed heat to a first cooling fluid.3. The engine of claim 2 , wherein the first cooling fluid comprises a fuel claim 2 , and wherein at least a portion of the heated fuel is introduced into the interior volume of the combustion chamber during at least a portion of a power stroke.4. The engine of claim 1 , wherein the heat absorption element is further configured to transfer at least a portion of the absorbed heat to a heat sink.5. The engine of claim 4 , wherein at least a portion of the absorbed heat is transferred to the heat sink via a first cooling fluid.68-. (canceled)9. The engine of claim 4 , wherein the heat sink comprises a fuel.1019-. (canceled)20. The engine of claim 5 , wherein ...

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18-02-2016 дата публикации

HEAT TRANSFER SYSTEMS FOR INTERNAL COMBUSTION ENGINES AND METHODS

Номер: US20160047345A1
Принадлежит:

A heat transfer system for use in an internal combustion engine and related methods are disclosed. The heat transfer system may be configured to absorb and transfer heat from a combustion chamber of an internal combustion engine. The heat transfer system may also be configured to reintroduce absorbed and/or transferred heat into the internal combustion engine via a fuel injector or another suitable device. Removal of the heat from the combustion chamber may reduce a quantity of work required or used for compression of a first combustion fluid, increase a charge density in the combustion chamber, and/or increase the compression ratio of the engine. Additionally, the heat transfer system may be designed such that it may be used to retrofit an existing internal combustion engine. 1. A compression-ignition internal combustion engine comprising:a combustion chamber; anda heat absorption element in communication with an interior volume of the combustion chamber, wherein the heat absorption element is configured to absorb at least a portion of an amount of heat generated by work done on a first combustion fluid disposed in the interior volume of the combustion chamber.2. (canceled)3. The engine of claim 1 , wherein the heat absorption element is configured to absorb more heat during a first time period in comparison to during a second time period.45-. (canceled)6. The engine of claim 1 , wherein the heat absorption element is further configured to transfer at least a portion of the absorbed heat to a first cooling fluid.7. The engine of claim 6 , wherein the first cooling fluid comprises a fuel claim 6 , and wherein at least a portion of the heated fuel is introduced into the interior volume of the combustion chamber during at least a portion of a power stroke.819-. (canceled)20. The engine of claim 1 , wherein the heat absorption element is further configured to transfer at least a portion of the absorbed heat to a heat sink.21. The engine of claim 20 , wherein at least a ...

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16-02-2017 дата публикации

FUEL COOLED INJECTOR TIP

Номер: US20170045023A1
Принадлежит:

A fuel injector is provided comprising an outer housing, a nozzle housing disposed within the outer housing, a flow path between the outer housing and the nozzle housing, the flow path being coupled to a low pressure fuel source, and a circumferential gap in flow communication with the flow path and extending about a tip of the fuel injector between an outer surface of the nozzle housing and an inner surface of a combustion shield adjacent the injector tip. The circumferential gap is in flow communication with a drain gap between the outer housing and a bore for receiving the fuel injector, the drain gap routing the low pressure fuel away from the injector tip. 1. A fuel injector , comprising:an outer housing;a nozzle housing disposed within the outer housing;a flow path between the outer housing and the nozzle housing, the flow path being coupled to a low pressure fuel source; anda circumferential gap in flow communication with the flow path and extending about a tip of the fuel injector between an outer surface of the nozzle housing and an inner surface of a combustion shield adjacent the injector tip;wherein the circumferential gap is in flow communication with a drain gap between the outer housing and a bore for receiving the fuel injector, the drain gap routing the low pressure fuel away from the injector tip.2. The fuel injector of claim 1 , wherein the outer surface of the nozzle housing includes a first shoulder that contacts the combustion shield to define one end of the circumferential gap claim 1 , and a second shoulder that contacts the combustion shield to define another end of the circumferential gap claim 1 , the other end of the circumferential gap having an opening in flow communication with the flow path.3. The fuel injector of claim 2 , wherein the drain gap is in flow communication with the circumferential gap at a location between the ends of the circumferential gap.4. The fuel injector of claim 1 , wherein the nozzle housing comprises at least ...

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03-03-2022 дата публикации

Cooling of the Spark Plug with Improved Contact Surface

Номер: US20220065156A1
Автор: Guisasola lnigo
Принадлежит: Caterpillar Energy Solutions GmbH

The present invention pertains to a spark plug for an internal combustion engine, comprising a metal outer shell extending in a longitudinal direction from a proximal end to a distal tip end configured to be oriented towards a combustion chamber, said outer shell comprising a fixation portion for attachment of the spark plug to a metal sleeve of the internal combustion engine and arranged at a region proximal of the tip end, wherein the outer shell furthermore comprises a first contact surface arranged at a region distal of the fixation portion and configured to contact a distal end of the sleeve, when the spark plug is attached to the sleeve.

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26-02-2015 дата публикации

CERAMIC PROTECTION FOR FUEL INJECTOR LINES

Номер: US20150053795A1
Автор: Spoone Sandy
Принадлежит: WALBAR INC

A fuel injector body comprising a fuel line defined by a passage therethrough and a ceramic cylinder disposed within the passage. The ceramic cylinder is a tube including a hollow passage for fuel flow therethrough. In addition, a method of protecting the fuel lines of a fuel injector is disclosed, comprising the steps of inserting a ceramic cylinder into at least passage for a fuel line of the fuel injector and adhering the ceramic cylinder within the passage. 1. A fuel injector body comprising:a fuel line defined by a passage therethrough; anda ceramic cylinder disposed within the passage.2. The fuel injector as recited in claim 1 , wherein the ceramic cylinder is a tube including a hollow passage for fuel flow therethrough.3. The fuel injector as recited in claim 2 , wherein the ceramic cylinder extends the length of the passage.4. The fuel injector as recited in claim 2 , wherein a lip surrounds an opening downstream of the passage configured to act as a stop for the ceramic cylinder.5. The fuel injector as recited in claim 2 , wherein the passage is 0.113 inches in diameter for accommodating adequate wall thickness of the ceramic cylinder.6. The fuel injector as recited in claim 2 , wherein the ceramic cylinder is adhered within the passage.7. The fuel injector as recited in claim 6 , wherein the ceramic cylinder is adhered using Araldite 2011.8. The fuel injector as recited in claim 6 , wherein the ceramic cylinder is adhered using Duralco™4525.9. The fuel injector as recited in claim 2 , wherein the fuel injector includes a plurality of passages such that at least one passage includes the ceramic cylinder disposed therein.10. A fuel injector for an internal combustion engine comprising:a plurality of fuel lines defining a plurality of passages, each passage having a ceramic cylinder disposed therein, wherein the ceramic cylinder is adhered within the passage, each passage having a lip that surrounds the opening downstream of the passage.11. The fuel injector ...

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23-02-2017 дата публикации

NOZZLE COMBUSTION SHIELD AND SEALING MEMBER WITH IMPROVED HEAT TRANSFER CAPABILITIES

Номер: US20170051713A1
Принадлежит:

An injector combustion shield assembly comprising a bore configured to receive a fuel injector, the bore including a fluid opening in fluid communication with a fluid jacket and a fluid outlet positioned within an annular wall of the bore; and a valve positioned between the fluid jacket and the fluid opening and configured to selectively permit a fluid from the fluid jacket to enter the bore, the valve being movable between an open configuration to permit fluid flow from the fluid jacket into the bore via the fluid opening and a closed configuration to prevent fluid flow from the fluid jacket into the bore. 1. A heat transfer assembly comprising:a bore configured to receive a fuel injector, the bore including a fluid opening in fluid communication with a fluid jacket and a fluid outlet positioned within an annular wall of the bore; anda valve positioned between the fluid jacket and the fluid opening and configured to selectively permit a fluid from the fluid jacket to enter the bore, the valve being movable between an open configuration to permit fluid flow from the fluid jacket into the bore via the fluid opening and a closed configuration to prevent fluid flow from the fluid jacket into the bore.2. The assembly of claim 1 , wherein the valve moves from the closed configuration to the open configuration in response to the fuel injector being inserted into the bore.3. The assembly of claim 1 , wherein a first end of the valve is in contact with a spring and a second end of the valve is in contact with a section of the fuel injector claim 1 , the spring providing a biasing force to bias the valve toward the closed configuration.4. The assembly of claim 3 , wherein a force applied by the fuel injector to the valve when the fuel injector is installed within the bore overcomes the biasing force of the spring such that the valve moves from the closed configuration to the open configuration.5. The assembly of claim 1 , wherein the valve is movable from the closed ...

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22-05-2014 дата публикации

SYSTEM AND METHOD FOR COUPLING COOLANT FLUID CONDUIT TO FEED INJECTOR TIP

Номер: US20140138459A1
Автор: Pan Edward
Принадлежит: GENERAL ELECTRIC COMPANY

A system includes a gasification feed injector that includes a tip portion with a first threaded portion, a coolant chamber disposed in the tip portion, and a coolant fluid conduit having a second threaded portion. The coolant fluid conduit is coupled to the tip portion adjacent to the coolant chamber via screwing of the second threaded portion into the first threaded portion. 1. A system comprising: a tip portion having a first threaded portion;', 'a coolant chamber disposed in the tip portion; and', 'a coolant fluid conduit having a second threaded portion, wherein the coolant fluid conduit is coupled to the tip portion adjacent the coolant chamber via threading of the second threaded portion into the first threaded portion., 'a gasification feed injector, comprising2. The system of claim 1 , wherein the gasification feed injector comprises a sealant disposed on the first and second threaded portions claim 1 , wherein the sealant is configured to block a fluid from leaking through a first interface of the first and second threaded portions out of the gasification feed injector.3. The system of claim 2 , wherein the sealant comprises a ceramic cement.4. The system of claim 1 , wherein the tip portion has a third threaded portion adjacent the coolant chamber claim 1 , and the coolant fluid conduit has a fourth threaded portion claim 1 , wherein the coolant fluid conduit is coupled to the tip portion adjacent the coolant chamber via threading of the fourth threaded portion into the third threaded portion.5. The system of claim 4 , wherein the gasification feed injector comprises a sealant disposed on the first claim 4 , second claim 4 , third claim 4 , and fourth threaded portions claim 4 , wherein the sealant is configured to block a fluid from leaking through both a first interface of the first and second threaded portions and a second interface of the third and fourth threaded portions out of the gasification feed injector.6. The system of claim 5 , wherein the ...

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28-02-2019 дата публикации

FUEL INJECTOR

Номер: US20190063390A1
Принадлежит:

The invention relates to a fuel injector (), in particular a common-rail injector, comprising a valve housing () which can be inserted into a first receiving bore section () of an internal combustion machine and which has a first valve housing section () that faces a combustion chamber () of an internal combustion engine in the assembled position, said valve housing section being in contact with the combustion chamber () at least in some regions. At least the first valve housing section () consists of metal, and the first valve housing section () is radially surrounded by a protective element () in the form of a protective sleeve (). The protective sleeve () extends at least over a part of the axial length of the first valve housing section (). According to the invention, the transition region between the protective sleeve () and the first valve housing section () is sealed on the protective sleeve () side paired with the combustion chamber (). 1101110712101101121220212112211221101. A fuel injector () , having a valve housing () , which can be inserted into a first location hole section () of an internal combustion engine and which , in an installed position , has a first valve housing section () that faces a combustion chamber () of the internal combustion engine , said first valve housing section being in contact with the combustion chamber () at least in a region or regions , wherein at least the first valve housing section () consists of metal , wherein the first valve housing section () is radially surrounded by a protective element () in the form of a protective sleeve () , and wherein the protective sleeve () extends at least over a part of an axial length of the first valve housing section () , characterized in that a transitional region between the protective sleeve () and the first valve housing section () is sealed on a side of the protective sleeve () which is associated with the combustion chamber ().230312112. The fuel injector as claimed in claim 1 , ...

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17-03-2016 дата публикации

FUEL SYSTEM WITH FUEL COOLING

Номер: US20160076500A1
Автор: IBRAHIM Daniel R.
Принадлежит:

A fuel system for an engine including a cylinder, a cylinder head having a quill tube bore, and at least, one fuel injector, is provided. The fuel system comprises a common rail, a quill tube, and a connector. The quill tube is configured to connect the common rail to the at least one fuel injector to supply fuel from the common rail, wherein the quill tube is coupled to the cylinder head such that a portion of the quill tube is positioned inside the quill tube bore in the cylinder head defining a coolant jacket therebetween. The connector is configured to couple the quill tube to the cylinder head, and to hold the quill tube inside the quill tube bore. The connector includes at least one through hole configured to allow passage of the coolant to the coolant jacket. 1a common rail, wherein the common rail is configured to deliver fuel to the at least one fuel injector;a quill tube configured to connect the common rail to the at least one fuel injector to supply fuel, from the common rail, wherein the quill tube is coupled to the cylinder head such that a portion of the quill tube is positioned inside the quill tube bore In the cylinder head defining a coolant jacket therebetween;a connector configured to couple the quill tube to the cylinder head, and to hold the quill tube inside the quill tube bore; andat least one through hole positioned inside the connector, wherein the at least one through hole is configured to allow passage of a coolant to the coolant jacket.. A fuel system for an internal combustion engine, the internal combustion engine including; a cylinder, a cylinder head having a quill tube bore, at least one fuel injector positioned in the cylinder head wherein the at least one fuel injector is configured to inject fuel into the cylinder, the fuel system comprising: The present disclosure relates generally to a feel system. More specifically, the present disclosure relates to a fuel system with fuel cooling.Internal combustion engines equipped with a ...

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05-03-2020 дата публикации

COMBUSTION-POWERED FLOW CONTROL ACTUATOR WITH EXTERNAL FUEL INJECTOR

Номер: US20200072174A1
Принадлежит: GENERAL ELECTRIC COMPANY

A flow control actuator includes at least one side wall, an upstream wall coupled to an upstream end of the side wall, a downstream cap coupled to a downstream end of the side wall, the downstream cap comprising at least one orifice disposed therein, at least one fuel injector disposed in at least one of the upstream wall, and the sidewall, the fuel injector dispersing fuel into the interior of the flow control actuator, and at least one oxidizer inlet disposed in at least one of the upstream wall and the sidewall, the at least one oxidizer inlet introducing an oxidizer into the interior of the flow control actuator. The flow control actuator includes at least one external fuel injector disposed adjacent to the side wall. The fuel from the fuel injector and oxidizer from the oxidizer inlet ignite in the interior of the flow control actuator. 1. A flow control actuator comprising:at least one side wall;an upstream wall coupled to an upstream end of the at least one side wall;a downstream cap coupled to a downstream end of the at least one side wall, the downstream cap comprising at least one orifice disposed therein;at least one fuel injector disposed in at least one of the upstream wall and the at least one sidewall, the at least one fuel injector dispersing fuel into an interior of the flow control actuator;at least one oxidizer inlet disposed in at least one of the upstream wall and the at least one sidewall, the at least one oxidizer inlet introducing an oxidizer into the interior of the flow control actuator; andat least one external fuel injector disposed adjacent to the at least one side wall;wherein fuel from the at least one fuel injector and oxidizer from the at least one oxidizer inlet ignite in the interior of the flow control actuator;wherein combustion gases from the interior of the flow control actuator exit the flow control actuator via the at least one orifice, andwherein the at least one external fuel injector disperses fuel at the exterior of the ...

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05-03-2020 дата публикации

METHODS AND SYSTEMS FOR A FUEL INJECTOR

Номер: US20200072175A1
Принадлежит:

Methods and systems are provided for a fuel injector. In one example, a system may include an injector comprising two or more passages shaped to flow a mixture in opposite directions before injecting the mixture. 1. A system , comprising:an injector comprising a first passage shaped to flow a mixture in a first direction, a second passage fluidly coupled to the first passage and shaped to flow the mixture in a second direction, and a third passage fluidly coupled to the second passage and shaped to flow the mixture in a third direction.2. The system of claim 1 , wherein the first direction and the third direction are identical to one another and opposite to the second direction.3. The system of claim 1 , wherein the third passage is fluidly coupled to a venturi passage claim 1 , the venturi passage having an outlet shaped to eject the mixture from the injector.4. The system of claim 3 , wherein the first passage is arranged distal to a central axis of the injector relative to the second passage and third passage claim 3 , and where an inlet to the first passage is arranged upstream in the injector of the second passage and third passage so that the first passage receives the mixture before the second and third passages claim 3 , where the first passage extends in the first direction toward a plurality of lower openings arranged adjacent to the outlet claim 3 , and where the lower openings form an inlet to the second passage from the first passage claim 3 , where a line normal to the lower openings is arranged perpendicular to the central axis so that the mixture flows in a fourth direction parallel to the line through the lower openings claim 3 , the fourth direction perpendicular to the first direction.5. The system of claim 4 , wherein the second passage is arranged closer to the central axis than the first passage claim 4 , the second passage extending in the second direction claim 4 , away from the lower openings and toward a plurality of upper openings arranged ...

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02-04-2015 дата публикации

Determination of the quantity of air flowing through a fuel injector based on the heating of the fuel by means of an electric heating device

Номер: US20150090230A1
Принадлежит: Continental Automotive GmbH

A method for determining the quantity of fuel flowing through a fuel injector. The fuel injector has an electric heating device for heating the fuel and a temperature-measuring device for measuring the temperature of the heated fuel. The method includes (a) applying a predetermined electrical heating power to the electric heating device, (b) measuring an increase in the temperature of the fuel as a consequence of the heating power, and (c) determining the quantity of fuel flowing through the fuel injector on the basis of the applied electrical heating power and the measured increase in the temperature. A method for equalizing the fuel feed at at least two cylinders of an internal combustion engine utilizes the method for determining the quantity of fuel flowing through a fuel injector. An engine controller and a computer program carry out the specified methods.

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29-03-2018 дата публикации

ADDITIVE MANUFACTURED COMBUSTION ENGINE

Номер: US20180087443A1
Принадлежит:

Aspects of the present disclosure are presented for a combustion engine design with an optimized amount of materials used to generate the necessary components of the engine. The engine may be generated as a single piece, having no joints, fasteners, or any other areas that could present a risk for damage. The designs are described may also reduce weight of the engine, due to eliminating the need for fasteners and other extraneous hardware. In general, the weight of the engine may be optimized to also preclude the inclusion of extraneous material around needed structures. Also, the engine may be designed to be highly energy efficient, with optimal flows for fuel and other fluid with minimal head loss while maintaining higher pressures. 2. The combustion engine of claim 1 , wherein each of the plurality of coolant channels has at least a portion of cross-sectional area in a shape of a bean.3. The combustion engine of claim 1 , wherein each of the plurality of coolant channels has at least a portion of cross-sectional area in a shape of a trapezoid with rounded corners.4. The combustion engine of claim 1 , wherein each of the plurality of coolant channels has at least a portion of cross-sectional area in a shape defined by satisfying a plurality of boundary conditions defining one or more functional or structural properties of the wall.5. The combustion engine of claim 4 , wherein the plurality of boundary conditions include:at least one thermal condition that the wall must satisfy;at least one structural condition that the wall must satisfy;at least one material property about the wall that the wall must satisfy; andat least one material property of the coolant channels that the plurality of coolant channels must satisfy.6. The combustion engine of claim 4 , wherein:the plurality of boundary conditions is a first plurality of boundary conditions applied to a first location of the coolant channels, andeach of the plurality of coolant channels has at least a portion of ...

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05-05-2022 дата публикации

Sealing sleeve and sealing arrangement having sealing sleeve

Номер: US20220136472A1
Принадлежит: Liebherr Components Deggendorf GmbH

The present invention relates to a sealing sleeve for the separated supply and discharge of a cooling medium that comprises a sealing member that is pivotally symmetrical about the longitudinal axis, a protrusion projecting radially outwardly with respect to the longitudinal axis at the upper longitudinal end of the sleeve member, a protrusion projecting radially outwardly with respect to the longitudinal axis at the lower longitudinal end of the sleeve member, a first web section and a second web section of which each one extends in the axial direction of the sleeve member and connects the upper protrusion to the lower protrusion, and a first wall region and a second wall region of which each one is bounded in the axial direction by the upper and lower protrusions and in the peripheral direction by the first and second web sections and is radially inward offset with respect to these elements, with the upper protrusion and the lower protrusion each extending continuously around the total periphery of the sleeve member and defining its maximum radial extent, and with the first wall region and the second wall region each having a radially extending passage channel to radially supply or discharge a cooling medium.

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03-07-2014 дата публикации

FUEL HEATING DEVICE FOR IMPROVING COLD START PERFORMANCE OF FLEX FUEL VEHICLE

Номер: US20140182562A1
Принадлежит: HYUNDAI MOTOR COMPANY

A fuel heating device may improve cold start performance and solve a number of problems of conventional auxiliary tank and heating systems of a flex fuel vehicle (FFV). The fuel heating device may include a heater having embedded therein a heat emission object for heating fuel, a solenoid valve connected the heater such that a flow path to a first outlet is opened or closed to selectively supply fuel, a temperature sensor installed in the heater, and a controller for turning on and off the heater and opening and closing the solenoid valve according to a temperature of the fuel, in which the outlet of the heater is connected with a cold start injector through a cold start line and an inlet of the solenoid valve is connected with a fuel line connected from the fuel tank. 1. A fuel heating device for improving cold start performance of a flex fuel vehicle (FFV) , the fuel heating device comprising:a heater having an inlet and an outlet for allowing introduction, passage, and discharge of a fuel through the heater, the heater having embedded therein a heat emission object for heating the fuel;a solenoid valve having a first outlet which is connected to the inlet of the heater such that a flow path to the first outlet is opened or closed to selectively supply the fuel to the inlet;a temperature sensor installed in the heater to detect a temperature of the fuel within the heater; anda controller for turning on and off of the heater and opening and closing of the solenoid valve according to the temperature of the fuel detected by the temperature sensor;wherein the outlet of the heater is connected with a cold start injector through a cold start line and an inlet of the solenoid valve is connected with a fuel line connected from the fuel tank.2. The fuel heating device of claim 1 , wherein the solenoid valve further comprises a second outlet to selectively open one of a first flow path to the first outlet and a second flow path to the second outlet when being opened or ...

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03-07-2014 дата публикации

TUNED POWER AMPLIFIER WITH MULTIPLE LOADED CHOKES FOR INDUCTIVELY HEATED FUEL INJECTORS

Номер: US20140182563A1
Автор: Czimmek Perry Robert
Принадлежит:

A tuned power amplifier includes: a tuning capacitor connected in series with multiple loaded chokes that represent an inductance of an oscillator, and multiple semiconductor power switches connected to the series connections between the tuning capacitor and the loaded chokes. The loaded chokes may be induction heating coils of inductively heated fuel injectors. The induction heating coils may be connected to a common voltage source. An on state and an off state of the semiconductor power switches may be synchronized with, or at a frequency below, a natural resonant frequency of the tuned power amplifier. 1. A tuned power amplifier comprising:a tuning capacitor connected, in series, at a plurality of series connections, with a corresponding plurality of loaded chokes, wherein the plurality of loaded chokes are configured to represent an inductance of an oscillator;a plurality of semiconductor power switches connected to the plurality of series connections between the tuning capacitor and the corresponding plurality of loaded chokes.2. The tuned power amplifier of claim 1 , wherein the corresponding plurality of loaded chokes comprise a plurality of electromagnetic coils and a plurality of loss components configured to perform induction heating.3. The tuned power amplifier of claim 1 , wherein the corresponding plurality of loaded chokes comprise a plurality of induction heating coils of a plurality of inductively heated fuel injectors.4. The tuned power amplifier of claim 3 , wherein the plurality of induction heating coils are connected to a common voltage source.5. The tuned power amplifier of claim 1 , wherein an on state of the plurality of semiconductor power switches and an off state of the plurality of semiconductor power switches are synchronized with a natural resonant frequency of the tuned power amplifier.6. The tuned power amplifier of claim 1 , wherein an on state of the plurality of semiconductor power switches and an off state of the plurality of ...

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23-04-2015 дата публикации

THREE-PIECE AIRBLAST FUEL INJECTOR

Номер: US20150108236A1
Принадлежит: Delavan Inc.

A fuel system includes an external cool air source, and a fuel injector. The fuel injector includes a fuel circuit, an outer air circuit, an inner air circuit, and an outlet. The fuel circuit receives liquid fuel from a fuel inlet. The outer air circuit receives cool air from the cool air source and substantially surrounds the fuel circuit. The inner air circuit is in fluid communication with the outer air circuit and a portion of the fuel circuit substantially surrounds the inner air circuit. The outlet provides atomized fuel from the fuel circuit, outer air circuit and inner air circuit to a combustor. 1. A fuel system comprising:an external cool air source; and a fuel circuit that receives liquid fuel from a fuel inlet;', 'an outer air circuit that receives cool air from the cool air source, wherein the outer air circuit substantially surrounds the fuel circuit;', 'an inner air circuit in fluid communication with the outer air circuit, wherein a portion of the fuel circuit substantially surrounds the inner air circuit; and', 'an outlet that provides atomized fuel from the fuel circuit, outer air circuit and inner air circuit to a combustor., 'a fuel injector that comprises2. The fuel system of claim 1 , wherein the fuel injector further comprises:a body piece-part;an air-swirler piece-part; anda housing piece-part; and a fuel passageway in the body piece-part that is in fluid communication with the fuel inlet;', 'a fuel chamber defined between an outer surface of the body piece-part and an inner surface of the air-swirler piece-part, wherein the fuel chamber is in fluid communication with the fuel passageway; and', 'a prefilmer in fluid communication with the fuel chamber, wherein the prefilmer is in fluid communication with the outlet., 'wherein the fuel circuit comprises3. The fuel system of claim 2 , wherein the outer air circuit comprises:a first air chamber defined by an inner surface of the housing piece-part and an outer surface of the body, wherein the ...

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20-04-2017 дата публикации

FUEL SUPPLY CONTROL DEVICE

Номер: US20170107959A1
Принадлежит:

A control device, which is a fuel supply control device, performs a self-heating procedure by which an electric current is applied to a solenoid of a CNG injection valve in such a range that CNG is not injected from the CNG injection valve before engine operation using CNG is started. 1. A fuel supply control device employed in a fuel supply device that supplies a gas fuel into a combustion chamber of an internal combustion engine and has an injection valve that injects the gas fuel , wherein the fuel supply control device controls the injection valve , and the control device comprises a control section that performs a self-heating procedure by which an electric current is applied to a solenoid of the injection valve in such a range that the gas fuel is not injected from the injection valve before operation of the engine using the gas fuel is started.2. The fuel supply control device according to claim 1 , whereinthe injection valve is opened when, in a circumstance in which the injection valve is non-fixed, an energizing time of the solenoid of the injection valve reaches a necessary valve-opening time, andthe control section intermittently repeats energization for an energizing time of the solenoid that is less than the necessary valve-opening time through the self-heating procedure.3. The fuel supply control device according to claim 1 , whereinthe injection valve is opened when, in a circumstance in which the injection valve is non-fixed, a voltage applied to the solenoid of the injection valve is greater than or equal to a necessary valve-opening voltage, andthe control section continuously applies a voltage that is smaller than the necessary valve-opening voltage to the solenoid of the injection valve through the self-heating procedure.4. The fuel supply control device according to claim 1 , whereinthe injection valve is opened when, in a circumstance in which the injection valve is non-fixed, an electric current flowing in the solenoid of the injection valve ...

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11-04-2019 дата публикации

METHODS AND SYSTEMS FOR FUEL INJECTION CONTROL

Номер: US20190107074A1
Принадлежит:

Methods and systems are provided for continuously estimating a direct injector tip temperature based on heat transfer to the injector from the cylinder due to combustion conditions, and heat transfer to the injector due to flow of cool fuel from the fuel rail. Variations in the injector tip temperature from a steady-state temperature are monitored when the direct injector is deactivated. Upon reactivation, a fuel pulse width commanded to the direct injector is updated to account for a temperature-induced change in fuel density, thereby reducing the occurrence of air-fuel ratio errors. 1. An engine method , comprising:estimating a direct injector tip temperature different from fuel temperature based on cylinder conditions including cylinder combustion conditions and cylinder valve operation; andresponsive to deactivation or reactivation of a direct injector, adjusting one or more of a direct injection fuel pulse and a port injection fuel pulse based on each of the estimated direct injector tip temperature and fuel temperature.2. The method of claim 1 , wherein estimating based on cylinder combustion conditions includes estimating based on whether cylinder combustion is present or absent while the direct injector is deactivated claim 1 , the direct injector tip temperature increased higher than the fuel temperature when cylinder combustion is present claim 1 , the direct injector tip temperature decreased lower than the fuel temperature when cylinder combustion is absent.3. The method of claim 2 , wherein an increase in the direct injector tip temperature is raised relative to an increase in the fuel temperature as an average cylinder load increases when cylinder combustion is present.4. The method of claim 2 , wherein an increase in the direct injector tip temperature is raised relative to an increase in the fuel temperature as cylinder combustion air-fuel ratio becomes leaner than stoichiometry when cylinder combustion is present.5. The method of claim 1 , wherein ...

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28-04-2016 дата публикации

FUEL INJECTOR OF INTERNAL COMBUSTION ENGINE AND FUEL INJECTION METHOD THEREOF

Номер: US20160115894A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A fuel injector for an internal combustion engine includes a fuel injection valve, a heater, and a controller. The fuel injection valve is configured to supply fuel to the internal combustion engine. The heater is configured to heat the fuel in the fuel injection valve. The controller is configured to: control the fuel injection valve to stop supplying the fuel to the internal combustion engine, control the heater to execute or stop heating the fuel in the fuel injection valve, and control the fuel injection valve to prohibit the stop of supplying the fuel during execution of the heating by the heater. 1. A fuel injector for an internal combustion engine , the fuel injector comprising:a fuel injection valve configured to supply fuel to the internal combustion engine;a heater configured to heat the fuel in the fuel injection valve; and (a) control the fuel injection valve to stop supplying the fuel to the internal combustion engine;', '(b) control the heater to execute or stop heating the fuel in the fuel injection valve; and', '(c) control the fuel injection valve to prohibit the stop of supplying the fuel during execution of the heating by the heater., 'a controller configured to2. The fuel injector according to claim 1 , wherein the controller is configured to prohibit the stop of supplying the fuel even when an execution command of the stop of supplying the fuel is present during execution of the heating by the heater.3. The fuel injector according to claim 1 , wherein the controller is configured to cancel the prohibition of the stop of supplying the fuel after the heater is turned-off.4. The fuel injector according to claim 3 , wherein the controller is configured to cancel the prohibition of the stop of supplying the fuel when the heater is turned-off and then a predetermined period elapses.5. A method of injecting fuel for an internal combustion engine claim 3 , the internal combustion engine including a fuel injection valve configured to supply the fuel to ...

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17-07-2014 дата публикации

ARRANGEMENT AND METHOD FOR PREVENTING CARBON FORMATION IN SPRAY GUIDING STRUCTURES

Номер: US20140197245A1
Автор: Meyer Andrew E.
Принадлежит:

Method for preventing carbon build-up on fuel spray guiding surfaces proximate a nozzle of a fuel injector. Liquid fuel handling surfaces of the fuel injector can remain cool while providing very hot surfaces to burn off carbon particles before carbon deposits can build up and change the spray characteristics. In the method, a spray guiding structure guides the fuel spray after exiting from the fuel injector and a deflector member is arranged around the injector body. The spray guiding structure is thermally insulated from the fuel injector, and this thermal insulation enables the spray guiding structure to be heated to a temperature above about 900° F. to prevent build up of carbon thereon. 1. A fuel injection arrangement for an engine , comprising;a fuel injector having an injector body and a valve body and configured to inject fuel in spray form into a combustion chamber in the engine;a spray guiding structure that guides the fuel spray after exiting from said fuel injector; anda deflector member arranged around at least a part of said injector body,said spray guiding structure being thermally insulated from said fuel injector,whereby the thermal insulation of said spray guiding structure from said fuel injector enables said spray guiding structure to be heated to a temperature above about 900° F. to prevent build up of carbon on said spray guiding structure.2. The arrangement of claim 1 , wherein said deflector member comprises a cylindrical cavity claim 1 , said injector body being arranged in said cavity defined by said deflector member.3. The arrangement of claim 1 , wherein said deflector member comprises a substantially cylindrical side wall and an end wall having an aperture through which the fuel spray from said fuel injector passes.4. The arrangement of claim 3 , wherein said cylindrical side wall of said deflector member is spaced from said injector body to define a gap between an inner surface of said cylindrical side wall and an outer surface of said ...

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09-04-2020 дата публикации

CONTROLLER ASSEMBLY

Номер: US20200109796A1
Автор: Murray Christopher A.
Принадлежит: ROLLS-ROYCE PLC

A controller assembly comprises an electromechanical actuator and a single-stage pneumatic flow switch configured to thermally protect the electromechanical actuator by a supply of cooling fluid. The single-stage pneumatic flow switch is movable between a first mode in which the switch is configured to open a cooling fluid flow passage and a second mode in which the switch is configured to close the cooling fluid flow passage. The electromechanical actuator is coupled to a valve movable between an open and a closed configuration 1. A controller assembly comprising:an electromechanical actuator; anda single-stage pneumatic flow switch configured to thermally protect the electromechanical actuator by a supply of cooling fluid;wherein the single-stage pneumatic flow switch is movable between a first mode in which the switch is configured to open a cooling fluid flow passage and a second mode in which the switch is configured to close the cooling fluid flow passage; andthe electromechanical actuator is coupled to a valve movable between an open and a closed configuration.2. The controller assembly of claim 1 , wherein the electromechanical actuator is disposed in a fluid flow outlet of the valve.3. The controller assembly of claim 1 , wherein claim 1 , when in the first mode claim 1 , the single-stage pneumatic flow switch is configured to open a further fluid flow passage and claim 1 , when in the second mode claim 1 , the switch is configured to close the further fluid flow passage.4. The controller assembly of claim 3 , wherein the further fluid flow passage is connected to a control chamber of the valve.5. The controller assembly of claim 1 , wherein claim 1 , when in the first mode claim 1 , the single-stage pneumatic flow switch is configured to cause the valve to open and claim 1 , when in the second mode claim 1 , the switch is configured to cause the valve to close.6. The controller assembly of claim 4 , wherein claim 4 , when in the second mode the single- ...

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24-07-2014 дата публикации

Cold start up auxiliary system for alcohol and flex engines with air-inlet and alcohol warm up

Номер: US20140202414A1
Принадлежит: Fiat Automoveis Ltda

A warm-up air system to aid cold start up is provided. The system includes a turbine with electrical heaters linked to a throttle body or to an air sending tube to the throttle body forming a warmed up air circulation circuit. The system also includes valves controlled by an electronic unit.

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03-05-2018 дата публикации

OIL-INJECTED SCREW AIR COMPRESSOR

Номер: US20180119602A1
Принадлежит:

An oil-injected screw air compressor includes a first stage compression chamber, an air buffering chamber coupled to the first stage compression chamber, a second stage compression chamber coupled to the air buffering chamber, a first oil cooling device for cooling lubricating oil for the first stage compression chamber and the air buffering chamber, a second oil cooling device for cooling lubricating oil for the second stage compression chamber and the first oil cooling device, a plurality sensors respectively located at the first stage compression chamber outlet and the second stage compression chamber outlet, and a control unit respectively and dynamically controlling the first oil cooling device and the second oil cooling device according to preset pressure and temperature data measured by the sensors or pressure and temperature data measured by the sensors, and temperature data and humidity data of an environment. 1. An oil-injected screw air compressor , comprising:a first stage compression chamber;an air buffering chamber coupled to the first stage compression chamber;a second stage compression chamber coupled to the air buffering chamber;a first oil cooling device for cooling lubricating oil for the first stage compression chamber and the air buffering chamber;a second oil cooling device for cooling lubricating oil for the second stage compression chamber and the first oil cooling device, wherein the first oil cooling device and the second oil cooling device are connected in series or parallel;a plurality sensors respectively located at the first stage compression chamber and the second stage compression chamber; anda control unit respectively and dynamically controlling the first oil cooling device and the second oil cooling device according to preset pressure and temperature data measured by the sensors or pressure and temperature data measured by the sensors, and temperature data and humidity data of an environment.2. The oil-injected screw air compressor ...

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21-05-2015 дата публикации

HEATING AND COOLING SYSTEM FOR AN ON-BOARD GAS ABSORBENT STORAGE VESSEL

Номер: US20150136273A1
Принадлежит:

In one aspect, a system for controlling the temperature within a gas absorbent storage vessel of a vehicle may include an air conditioning system forming a continuous flow loop of heat exchange fluid that is cycled between a heated flow and a cooled flow. The system may also include at least one fluid by-pass line extending at least partially within the gas absorbent storage vessel. The fluid by-pass line(s) may be configured to receive a by-pass flow including at least a portion of the heated flow or the cooled flow of the heat exchange fluid at one or more input locations and expel the by-pass flow back into the continuous flow loop at one or more output locations, wherein the by-pass flow is directed through the gas absorbent storage vessel via the by-pass line(s) so as to adjust an internal temperature within the gas absorbent storage vessel. 1. A system for controlling the temperature within a gas absorbent storage vessel of a vehicle , the system comprising:an air conditioning system of the vehicle, the air conditioning system forming a continuous flow loop of heat exchange fluid that is directed through one or more air conditioning system components such that the heat exchange fluid cycles between a heated flow and a cooled flow;at least one fluid by-pass line in fluid communication with the continuous flow loop at one or more input locations and at one or more output locations, the at least one fluid by-pass line including a portion extending within the gas absorbent storage vessel, the at least one fluid by-pass line being configured to receive a by-pass flow including at least a portion of at least one of the heated flow or the cooled flow of the heat exchange fluid at the one or more input locations and expel the by-pass flow back into the continuous flow loop at the one or more output locations,wherein the by-pass flow is directed through the gas absorbent storage vessel via the at least one by-pass line so as to adjust an internal temperature within the ...

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10-05-2018 дата публикации

FREQUENCY TO VOLTAGE CONVERTER USING GATE VOLTAGE SAMPLING OF POWER OSCILLATOR

Номер: US20180128222A1
Автор: Czimmek Perry Robert
Принадлежит: CONTINENTAL AUTOMOTIVE SYSTEMS, INC.

A frequency-to-voltage (F2V) conversion module includes a pulse shaping module that generates a square wave signal based on an oscillator signal, an edge to pulse conversion module that generates a pulse train based on corresponding rising and falling edges of the square wave signal, and an integrator module that generates an output voltage based on the pulse train. The output voltage is based on a frequency of the oscillator signal. 1. A method of controlling an inductive fuel heater , comprising:generating a square wave signal based on an oscillating signal of an oscillator that controls an inductive fuel heater, wherein the square wave signal has rising and falling edges which are faster than rising and falling edges, respectively, of the oscillating signal, and the square wave signal has a pulse frequency which is the same as a pulse frequency of the oscillating signal;generating a pulse train based on the rising and falling edges of the square wave signal, comprising delaying the square wave signal to generate a delayed square wave signal, and providing the square wave signal and the delayed square wave signal to a logic gate, an output of the logic gate corresponding to the pulse train; andgenerating an output voltage based on the pulse train, wherein the output voltage is based on a frequency of the oscillator, generating the output voltage comprises integrating the pulse train to generate the output voltage; andcontrolling the inductive fuel heater based on the output voltage.2. The method of claim 1 , wherein generating the square wave signal comprises comparing the oscillating signal to a reference signal.3. The method of claim 2 , wherein generating the square wave signal further comprises generating the reference signal based on a digital signal.4. The method of claim 2 , wherein generating the square wave signal further comprises converting a digital signal to an analog signal claim 2 , the analog signal comprising the reference signal.5. The method of ...

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21-05-2015 дата публикации

Heating Device for a Fluid Line

Номер: US20150139632A1
Принадлежит:

A heating device for a fluid line has a heat-conductive pipe segment to be flowed through by a fluid. An electrical heating element that heats the pipe segment is provided. An electrical plug connection device is provided, wherein contact elements connect the heating element electrically to the plug connection device. A fastening element attaches the heating element and the contact elements to the pipe segment. A plastic housing encapsulates the fastening element, the heating element, and the pipe segment. 1. A heating device for a fluid line , the heating device comprising:a heat-conductive pipe segment adapted to be flowed through by a fluid;an electrical heating element adapted to heat the pipe segment;an electrical plug connection device;contact elements connecting the heating element electrically to the plug connection device;a fastening element attaching the heating element and the contact elements to the pipe segment;a plastic housing encapsulating the fastening element, the heating element, and the pipe segment.2. The heating device according to claim 1 , further comprising a spring element arranged between the fastening element and the heating element and exerting a contact force to force the heating element into contact with the pipe segment.3. The heating device according to claim 1 , further comprising a sealing element arranged between the fastening element and the heating element and fluid-tightly sealing the heating element relative to an exterior.4. The heating device according to claim 3 , wherein the sealing element comprises a spring element exerting a contact force to force the heating element into contact with the pipe segment.5. The heating device according to claim 3 , wherein the sealing element is comprised of an elastomer and comprises push-through openings for the contact elements.6. The heating device according to claim 3 , wherein the fastening element comprises a support frame framing a region of the pipe segment that is to be heated by ...

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23-04-2020 дата публикации

Injector

Номер: US20200124003A1
Принадлежит: RICARDO UK LIMITED

A liquid coolant injector for injecting a liquid coolant into a cylinder of a split cycle engine, wherein the liquid coolant has been condensed into a liquid phase via a refrigeration process, the injector comprising, a thermally insulating housing, a liquid coolant inlet, a liquid coolant outlet in fluid communication with the liquid coolant inlet via a liquid coolant flow path wherein the liquid coolant flow path extends through the thermally insulating housing, the thermally insulating housing configured to inhibit vaporisation of the liquid coolant within the liquid coolant flow path, a valve closure member, moveable between a first position in which the valve closure member blocks the liquid coolant flow path and a second position in which the liquid coolant may flow from the liquid coolant inlet to the liquid coolant outlet, and, a driver operable to move the valve closure member between the first and second position in response to a control signal. 1. A liquid coolant injector for injecting a liquid coolant into a cylinder of a split cycle engine , wherein the liquid coolant has been condensed into a liquid phase via a refrigeration process , the injector comprising:a thermally insulating housing;a liquid coolant inlet;a liquid coolant outlet in fluid communication with the liquid coolant inlet via a liquid coolant flow path wherein the liquid coolant flow path extends through the thermally insulating housing, the thermally insulating housing configured to inhibit vaporisation of the liquid coolant within the liquid coolant flow path;a valve closure member, moveable between a first position in which the valve closure member blocks the liquid coolant flow path and a second position in which the liquid coolant may flow from the liquid coolant inlet to the liquid coolant outlet; and,a driver operable to move the valve closure member between the first and second positions in response to a control signal.2. The injector of wherein the thermally insulating housing ...

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07-08-2014 дата публикации

FUEL INJECTION NOZZLE

Номер: US20140216405A1
Автор: Kato Masaaki
Принадлежит: Denso Corporation

A fuel injection nozzle includes: a nozzle body having a plurality of injection holes; and a needle accommodated in the nozzle body to inject a DME fuel containing dimethyl ether as a main component. The nozzle body has a seat part to which the needle seated or from which the needle separated, and a tip end chamber arranged downstream of the seat part in a flow of the DME fuel to communicate with the plurality of injection holes. The DME fuel in the tip end chamber is heated with combustion heat in a combustion chamber of an internal combustion engine to have a supercritical state. 1. A fuel injection nozzle through which fuel is injected into a combustion chamber of an internal combustion engine , the fuel being a DME fuel containing dimethyl ether as a main component , the fuel injection nozzle comprising:a nozzle body having a plurality of injection holes; anda needle accommodated in the nozzle body to open or close the plurality of injection hole, wherein a seat part to which the needle seated or from which the needle separated, and', 'a tip end chamber arranged downstream of the seat part in a flow of the DME fuel to communicate with the plurality of injection holes, and, 'the nozzle body having'}the DME fuel in the tip end chamber is heated with combustion heat in the combustion chamber to have a supercritical state.2. The fuel injection nozzle according to claim 1 , further comprising:a heat receiving portion projected from a tip end of the nozzle body toward the combustion chamber, whereinthe heat receiving portion receives the combustion heat of the combustion chamber and transmits the combustion heat to the tip end chamber.3. The fuel injection nozzle according to claim 2 , further comprising:the heat receiving portion is integrally formed with the nozzle body as one-piece element.4. The fuel injection nozzle according to claim 2 , whereinthe heat receiving portion is formed separately from the nozzle body,the heat receiving portion is made of a material ...

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07-08-2014 дата публикации

Combustion Method for Piston Combustion Engines

Номер: US20140216406A1
Принадлежит: DAIMLER AG

A combustion method for reciprocating internal combustion engines, in particular diesel engines, whose fuel injection system operates with pre-injection involves two pre-injections during a cold start phase, which are carried out prior to reaching top dead center of a piston. A first pre-injection is performed at approximately 25° CA before top dead center and a second pre-injection is performed at approximately 5° CA before top dead center. A crank angle interval α of approximately 20° CA between the individual pre-injections and a crank angle interval β of approximately 5° CA between the second pre-injection and a main injection, are maintained independently of the rotational speed. 16-. (canceled)7. A combustion method for a diesel engine with fuel injection system that operates with pre-injection , the method comprising:performing, during a cold start phase, a first and second pre-injection prior to reaching top dead center of a piston,wherein a first pre-injection at approximately 25° crank angle before top dead center and a second pre-injection at approximately 5° CA before top dead center, andwherein a crank angle interval α of approximately 20° CA between the first and second pre-injections, and a crank angle interval β of approximately 5° CA between the second pre-injection and a main injection, are maintained independently of rotational speed.8. The combustion method according to claim 7 , further comprising:energizing a glow plug during the cold start phase to improve ignition conditions of a mixture in a combustion chamber of the diesel engine.9. The combustion method according to claim 8 , further comprising:energizing the glow plug for a defined period after the cold start phase in order to reduce pollutant emissions.10. A fuel injection system for a diesel engine claim 8 , wherein the fuel injection system is configured such that during a cold start phase the fuel injection system initiates a first pre-injection at approximately 25° CA before top dead ...

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19-05-2016 дата публикации

HEAT TRANSFERRING FUEL INJECTOR COMBUSTION SEAL WITH LOAD BEARING CAPABILITY

Номер: US20160138540A1
Принадлежит:

The present disclosure provides a fuel injector seal assembly comprising a seal member comprising a first section, a second section and an annular recess disposed in the first section, the first section having a first diameter and the second section having a second diameter wherein the first diameter is greater than the second diameter; and a sleeve member comprising a first end received by the first section of the seal member, the sleeve member further including a lengthwise portion configured to press fit around a nozzle housing of a fuel injector to cause heat transfer from the nozzle housing toward a body portion of the fuel injector. 1. A fuel injector seal assembly , comprising:a seal member comprising a first section, a second section and an annular recess disposed in the first section, the first section having a first diameter and the second section having a second diameter wherein the first diameter is greater than the second diameter; anda sleeve member comprising a first end received by the first section of the seal member, the sleeve member further including a lengthwise portion configured to press fit around a nozzle housing of a fuel injector to cause heat transfer from the nozzle housing toward a body portion of the fuel injector.2. The fuel injector seal assembly of claim 1 , further comprising a ring seal disposed in the annular recess claim 1 , the ring seal structured to at least one of seal combustion gases from moving toward the body portion of the fuel injector and secure the seal member to the fuel injector.3. The fuel injector seal assembly of claim 1 , wherein the sleeve member further comprises a second end and an inner surface dimensioned to exert a radial force inwardly on the nozzle housing along the lengthwise portion extending between the first end and the second end.4. The fuel injector seal assembly of claim 1 , wherein the seal member is formed from a first material and the sleeve member is formed from a second material that is ...

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24-05-2018 дата публикации

ASSEMBLY CONSISTING OF A CYLINDER HEAD AND A FUEL INJECTOR

Номер: US20180142654A1
Принадлежит:

An assembly of a cylinder head and a fuel injector with an injector tip for an internal combustion engine with at least one combustion chamber, wherein the fuel injector at the end facing a combustion chamber of the internal combustion engine is at least partially surrounded by a heat shield, wherein in the region of the heat shield a heat dissipation device is provided, through which heat can be dissipated from the combustion chamber of the internal combustion engine, wherein the heat shield surrounds the fuel injector as far as the injector tip, wherein the heat shield is designed as a tapering collar towards the injector tip and is integrated into an injector sleeve or into the cylinder head. 1. An assembly of a cylinder head and a fuel injector with an injector tip for an internal combustion engine with at least one combustion chamber , wherein the fuel injector at the end facing a combustion chamber of the internal combustion engine is at least partially surrounded by a heat shield , wherein in the region of the heat shield a heat dissipation device is provided , through which heat can be dissipated from the combustion chamber of the internal combustion engine , wherein the heat shield surrounds the fuel injector as far as the injector tip , and wherein the heat shield is designed as a tapering collar towards the injector tip and is integrated into an injector sleeve or into the cylinder head.2. The assembly according to claim 1 , wherein the heat dissipation device comprises a heat sink.3. The assembly according to or claim 1 , wherein the heat dissipation device comprises a cooling device that can be flowed through or circulated by a cooling medium.4. The assembly according to claim 3 , wherein the cooling device comprises cooling channels.5. The assembly according to claim 3 , wherein the cooling device can be connected to at least one combustion chamber via at least one opening.6. The assembly according to claim 3 , wherein the cooling device can be ...

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31-05-2018 дата публикации

METHODS AND SYSTEMS FOR FUEL INJECTION CONTROL

Номер: US20180149107A1
Принадлежит:

Methods and systems are provided for continuously estimating a direct injector tip temperature based on heat transfer to the injector from the cylinder due to combustion conditions, and heat transfer to the injector due to flow of cool fuel from the fuel rail. Variations in the injector tip temperature from a steady-state temperature are monitored when the direct injector is deactivated. Upon reactivation, a fuel pulse width commanded to the direct injector is updated to account for a temperature-induced change in fuel density, thereby reducing the occurrence of air-fuel ratio errors. 1. An engine method , comprising:estimating a direct injector tip temperature different from fuel temperature based on cylinder conditions including cylinder combustion conditions and cylinder valve operation; and responsive to deactivation or reactivation of a direct injector, adjusting one or more of a direct injection fuel pulse and a port injection fuel pulse based on each of the estimated direct injector tip temperature and fuel temperature.2. The method of claim 1 , wherein estimating based on cylinder combustion conditions includes estimating based on whether cylinder combustion is present or absent while the direct injector is deactivated claim 1 , the direct injector tip temperature increased higher than the fuel temperature when cylinder combustion is present claim 1 , the direct injector tip temperature decreased lower than the fuel temperature when cylinder combustion is absent.3. The method of claim 2 , wherein an increase in the direct injector tip temperature is raised relative to an increase in the fuel temperature as an average cylinder load increases when cylinder combustion is present.4. The method of claim 2 , wherein an increase in the direct injector tip temperature is raised relative to an increase in the fuel temperature as cylinder combustion air-fuel ratio becomes leaner than stoichiometry when cylinder combustion is present.5. The method of claim 1 , wherein ...

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31-05-2018 дата публикации

NOZZLE COMBUSTION SHIELD

Номер: US20180149125A1
Принадлежит: Cummins Inc.

An apparatus and method are disclosed for an injector assembly including an injector tip having a prechamber, such as a permanent, passive prechamber (PPPC), and a nozzle combustion shield (NCS) to mitigate pre-ignition events, such as knocking, caused by overheating of the prechamber. The NCS has a thermal conductivity greater than the injector tip. The NCS optionally includes a barrel forming a slip fit with the cylinder head bore and forming a press fit with the injector tip. The NCS also optionally includes a brim to form a combustion seal with a cylinder head. As the spark plug ignites a fuel charge in the prechamber, heat is absorbed into the injector tip, flows into the NCS barrel, out of the NCS brim, and into the cylinder head for cooling via a cooling jacket. 1. An assembly , comprising:an injector tip including a prechamber and at least a portion of a chamber housing, the prechamber being defined by at least the portion of the chamber housing, the chamber housing having a first thermal conductivity; anda nozzle combustion shield (NCS) including an inner surface, the NCS having a second thermal conductivity, the inner surface being in a press fit configuration with the chamber housing, wherein the second thermal conductivity of the NCS is greater than the first thermal conductivity of the chamber housing, and the NCS including a proximal end and a distal end, and both the proximal and distal ends are positioned adjacent the injector tip.2. The assembly of claim 1 , wherein the NCS further includes an outer surface claim 1 , the inner and outer surfaces having no threads.3. The assembly of claim 1 , wherein the chamber housing includes a shoulder providing a proximal surface claim 1 , the injector tip extending from the shoulder claim 1 , the inner surface of the NCS directly contacting the shoulder and the injector tip.4. The assembly of claim 3 , wherein the NCS includes a barrel and a brim on an end of the barrel protruding outwardly claim 3 , the NCS ...

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17-06-2021 дата публикации

FUEL INJECTION DEVICE

Номер: US20210180551A1
Принадлежит:

Disclosed are example embodiments of an electronic fuel injection device. In one example embodiment, the electronic fuel injection device includes: a yoke having an inner chamber; an armature and a plunger slidably disposed inside the inner chamber of the yoke; a cylindrical bobbin configured to receive the yoke; an electromagnetic coil disposed around an outside surface of the cylindrical bobbin; and a fuel return path formed between an outer surface of the yoke and an inner surface of the cylindrical bobbin. The inner surface of the cylindrical bobbin comprises surface cooling features, including channels or protrusions, configured to remove heat from the cylindrical bobbin. 1. A fuel injection device , comprising:a yoke having an inner chamber;an armature and a plunger slidably disposed inside the inner chamber of the yoke;a cylindrical bobbin configured to receive the yoke;an electromagnetic coil disposed around an outside surface of the cylindrical bobbin;a fuel return path formed between an outer surface of the yoke and an inner surface of the cylindrical bobbin; andone or more surface cooling features formed on the inner surface of the cylindrical bobbin.2. The fuel injection device of claim 1 , wherein the one or more surface cooling features comprise one or more channels.3. The fuel injection device of claim 1 , wherein the one or more surface cooling features comprise a helical channel disposed along a length of the inner surface.4. The fuel injection device of claim 2 , wherein the helical channel comprises a right-handed helical pathway.5. The fuel injection device of claim 2 , wherein the helical channel comprises a left-handed helical pathway.6. The fuel injection device of claim 1 , wherein the one or more surface cooling features are oriented parallel to a longitudinal axis of the cylindrical bobbin.7. The fuel injection device of claim 1 , wherein the one or more surface cooling features comprise one or more surface protrusions.8. The fuel injection ...

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11-06-2015 дата публикации

CARBON CONTAMINATION RESISTANT PRESSURE ATOMIZING NOZZLES

Номер: US20150159608A1
Принадлежит:

A pressure atomizing nozzle for injecting fuel includes an inlet housing configured to thermally isolate the interior space from external conditions and to remain relatively cool under operation so as to substantially eliminate heat soak back from the inlet housing to the interior space thereof after operation. First and second coolant conduits cool the nozzle tip region actively during operation and passively after operation. A cooling air jacket is configured to thermally isolate inboard components from exterior conditions, to provide clean air during operation to the nozzle tip region for diluting carbon to reduce carbon deposits in the nozzle tip region and for cooling the same, and to provide passive cooling to the nozzle tip region after operation. 110-. (canceled)10. A spray nozzle for injecting fuel comprising:a) an inlet housing including a fuel inlet, wherein the inlet housing defines an interior space and is configured to thermally isolate the interior space from external conditions during operation and to reduce heat soak back from the inlet housing to the interior space thereof after operation;b) a fuel conduit mounted in the interior space of the inlet housing in fluid communication with the fuel inlet for providing fuel to a spray nozzle mounted to the fuel conduit; andc) a cooling air jacket mounted to the inlet housing outboard of the fuel conduit and spray nozzle for conducting a flow of cooling air to a nozzle tip region proximate an outlet end of the spray nozzle, wherein the cooling air jacket is configured to thermally isolate inboard components from exterior conditions, to provide clean air during operation to the nozzle tip region for diluting carbon to reduce carbon deposits on the spray nozzle and for cooling the same, and to conduct air for passive cooling of the nozzle tip region after operation.11. A spray nozzle as recited in claim 10 , wherein the fuel conduit is a first fuel conduit claim 10 , wherein the spray nozzle is a first spray ...

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01-06-2017 дата публикации

Fuel System with a Fuel Pump Control Module and a Heat Sink

Номер: US20170152823A1
Принадлежит:

A fuel system for an internal combustion engine includes an electric fuel pump; a conduit which defines a flow path through which fuel flows from the electric fuel pump to the internal combustion engine; a fuel pump control module with electronics which drive the electric fuel pump, the fuel pump control module being disposed within a compartment defined by a wall; and a heat sink in thermal contact with the fuel pump control module and extending out of the compartment through an aperture of the wall and into the flow path such that the heat sink is sealed to the wall, thereby preventing fluid communication through the aperture. 1. A fuel system for an internal combustion engine , said fuel system comprising:an electric fuel pump;a conduit which defines a flow path through which fuel flows from said electric fuel pump to said internal combustion engine;a fuel pump control module with electronics which drive said electric fuel pump, said fuel pump control module being disposed within a compartment defined by a wall; anda heat sink in thermal contact with said fuel pump control module and extending out of said compartment through an aperture of said wall and into said flow path such that said heat sink is sealed to said wall, thereby preventing fluid communication through said aperture.2. A fuel system as in further comprising:a fuel tank configured to hold a volume of fuel to be pumped by said electric fuel pump, said electric fuel pump being disposed within said fuel tank, and said fuel tank having a fuel tank opening therein which accommodates insertion of said electric fuel pump within said fuel tank; anda cover which closes off said fuel tank opening;wherein said cover defines said wall.3. A fuel system as in wherein said heat sink includes a main body such that the circumference of said main body is in intimate claim 1 , uninterrupted circumferential contact with said aperture claim 1 , thereby preventing fluid communication through said aperture.4. A fuel ...

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09-06-2016 дата публикации

CONTROL METHOD FOR HEATED INJECTOR SYSTEM OF A VEHICLE

Номер: US20160160789A1
Автор: KIM Hyun, LEE Ho Young
Принадлежит:

A control method of the heated injector system for a vehicle including an injector, injecting fuel into an engine of the vehicle, and a fuel pump supplying the fuel to the injector, includes activating a heater to preheat the injector, stopping fuel supply by stopping driving of the fuel pump, and upon stopping the fuel supply, re-activating the heater to heat the injector. 1. A control method for a heated injector system for a vehicle having an injector , injecting fuel into an engine of the vehicle , and a fuel pump supplying the fuel to the injector , the method comprising:activating a heater to preheat the injector;stopping fuel supply by stopping driving of the fuel pump; andupon stopping the fuel supply, re-activating the heater to heat the injector.2. The control method according to claim 1 , further comprising:driving the fuel pump simultaneously with or after the preheating.3. The control method according to claim 2 , wherein the preheating and driving the fuel pump are terminated when a predetermined operation time elapses.4. The control method according to claim 2 , wherein the preheating and driving the fuel pump are terminated when a pressure of the fuel satisfies a predetermined pressure.5. The control method according to claim 2 , wherein a duration time of the preheating is determined so as to be longer than that of the fuel pump driving.6. The control method according to claim 1 , further comprising:prior to the preheating, measuring a coolant temperature or ambient temperature.7. The control method according to claim 6 , wherein the preheating of the injector and the heating of the injector are performed when the measured temperature is equal to or less than a predetermined temperature.8. The control method according to claim 1 , further comprising:upon stopping the fuel supply and prior to heating the injector, predicting a cranking of the vehicle.9. The control method according to claim 8 , wherein the predicting comprises predicting an intention ...

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23-05-2019 дата публикации

GAS FUELING METHOD

Номер: US20190153985A1
Автор: HANDA Kiyoshi
Принадлежит: HONDA MOTOR CO., LTD.

In order to provide a gas fueling method capable of suppressing overheating of a tank immediately after a start of fueling, in the gas fueling method, an accumulator and a hydrogen tank are coupled to each other with a gas flow passage. In a main fueling control at and after the timing t, a sensor-based value MAT of a temperature parameter of a measurement position Q is calculated on the basis of a detection value of a first station temperature sensor, and the fueling control is performed on the basis of the sensor-based value MAT. In an initial fueling control at the timing t to t, a prediction value MAT_pred of the temperature parameter is calculated at the timing t on the basis of an ambient temperature value, a mass flow rate value, and a heat capacity. The fueling control is performed on the basis of the prediction value MAT_pred. 1. A gas fueling method between a gas supply source and a tank of a mobile object coupled to each other with a gas flow passage provided with a cooling device and a flow rate regulator to perform a fueling control on the basis of a temperature parameter at a first predetermined position of the gas flow passage , the gas fueling method comprising:a process for acquiring an ambient temperature, a mass flow rate of a gas flowing through the gas flow passage, and a gas temperature value or a temperature value relating to the gas at a second predetermined position in an upstream side of the first predetermined position in the middle of the gas flow passage; anda process for predicting a value of the temperature parameter after a prediction time for a case where gas fueling is continuously performed from a current timing to the prediction time or later on the basis of a heat capacity from the first predetermined position to the second predetermined position, the acquired ambient temperature value, the acquired mass flow rate value, and the acquired temperature value,wherein a fueling control is performed on the basis of the prediction value ...

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08-06-2017 дата публикации

THERMAL ENERGY POWER DEVICE AND WORK-DOING METHOD THEREFOR

Номер: US20170159620A1
Автор: GUO Yuanjun
Принадлежит:

A thermal energy power device is disclosed. A gasification reactor is arranged on a TDC of a cylinder bulk of an internal combustion engine, wherein the gasification reactor includes gasifying plates () and gas holes (). The gasifying plates are arranged with gaps on the TDC of the cylinder. The gas holes () are distributed evenly, in an array, or in a staggered manner on the gasifying plate (). A cylinder head above the gasification reactor is provided with an atomizer (). Heat absorption plates () are arranged inside the exhaust passage in parallel with an air flow direction. The heat absorption plates () absorb thermal energy of exhaust gas and transfer the thermal energy to the gasification reactor. The internal combustion engine is wrapped with an insulation layer. An added working stroke enables the temperature of the cylinder bulk to be lowered. The compression ratio is high. 1. A thermal energy power , device , comprisinga gasification reactor, provided on a Top Dead Center (TDC) of a cylinder bulk of an internal combustion engine, the gasification reactor including one or more gasifying plates and a plurality of gas holes, the one or more gasifying plates being positioned on the TDC of the cylinder bulk with one or more gaps, the plurality of gas holes being distributed evenly, in an array, or in a staggered manner on each gasifying plate,wherein an atomizer is provided on a cylinder head above the gasification reactor, heat absorbing plates being provided in parallel in a direction of a gas flow of an exhaust passage, the heat absorbing plates absorbing thermal energy from exhaust gas and passing the thermal energy to the gasification reactor,wherein an internal combustion engine is wrapped with an insulation layer.2. The thermal energy power device of claim 1 , wherein the heat absorbing plates are provided inside the exhaust passage claim 1 , and the diameter of the exhaust passage is enlarged claim 1 , such that an increased resistance of the heat ...

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18-06-2015 дата публикации

CONTROL DEVICE FOR GASOLINE ENGINE

Номер: US20150167600A1
Автор: Kawamura Daigo
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A gasoline engine includes an electric heater, which is embedded in a port-type fuel injection valve and heats the fuel in the fuel injection valve. An electronic control device heats the fuel by means of the electric heater when the engine is cold. When the fuel is not heated by the electric heater, the electronic control device controls the fuel injection valve such that the engine rotational speed NE is a second prescribed value N2 which is higher than the idle rotational speed when the engine is warm. When idle running is performed when the engine is cold and the fuel injected from the fuel injection valve is heated by the electric heater, the amount Q of fuel injected by the fuel injection valve is controlled such that the engine rotational speed NE is less than the second prescribed value N2. 1. A gasoline engine controller that controls a gasoline engine including an electric heating device that heats fuel in a portion of a fuel supply line located at an upstream side of an injection hole of a fuel injection valve , whereinthe controller heats the fuel with the heating device when the engine is cold, andwhen the engine is cold and idling, the amount of fuel injected from the fuel injection valve is controlled so that the engine speed when the fuel injected from the fuel injection valve is heated by the heating device is less than the engine speed when the fuel injected from the fuel injection valve is not heated by the heating device.2. (canceled)3. The gasoline engine controller according to , whereinthe heating device is activated by power supplied from a battery,the battery is configured to be charged by power generated by an engine-driven power generator, andwhen the engine is cold and idling, the heating performed by the heating device and the amount of fuel injected from the fuel injection valve are controlled so that the fuel consumption amount of the gasoline engine is less when the fuel injected from the fuel injection valve is heated by the heating ...

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11-09-2014 дата публикации

HEATABLE INJECTOR FOR FUEL INJECTION IN AN INTERNAL COMBUSTION ENGINE

Номер: US20140252122A1

A heatable injector for fuel injection in an internal combustion engine, the injector having an injector housing, a fuel space which is situated inside the injector housing, an adjustable injector needle which is arranged in the injector housing for opening and closing a fuel discharge opening of the injector housing, and a heating device which is arranged inside the injector housing with a heating element for heating the fuel which is situated in the fuel space. The heating element is configured as a coating of a boundary face of the injector with respect to its fuel space, the coating being composed of a carbon nanoparticle material.

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21-05-2020 дата публикации

INJECTING APPARATUS AND METHOD OF USING AN INJECTING APPARATUS

Номер: US20200158062A1
Автор: Kukler Ronald
Принадлежит:

An injecting apparatus for injecting a fluid under pressure into an associated chamber, the injecting apparatus including a body; a piston movable in the body under the action of fluid pressure in the associated chamber acting from externally against the piston, the piston being operable to compress fluid to be injected in a high pressure chamber, the piston being movable against the action of fluid pressure in a control chamber whereby movement of the piston is selectively controllable by controlling the fluid in the control chamber; and an injector valve and an associated injector orifice in selective fluid communication with the high pressure chamber whereby high pressure fluid from the high pressure chamber can be injected through the injector orifice upon opening of the injection valve. 144-. (canceled)45. An injector nozzle for injecting fuel into a combustion chamber of an internal combustion engine , the nozzle including a disc having a plurality of injector orifices situated around a periphery of the disc.46. An injector nozzle as defined in wherein a cross-section dimension of each orifice is less than 0.05 mm.47. An injector nozzle for injecting fuel into a combustion chamber on an internal combustion engine claim 45 , the nozzle including at least one injector orifice having a cross-section dimension of less than 0.025 mm.48. An injector nozzle as defined in claim 47 , there being at least fifty injector orifices.49. An injector nozzle as defined in claim 47 , in which a cross-section shape of each injector orifice is non-circular.50. An injector nozzle as defined in wherein the cross-section shape of each orifice has a generally flat portion.51. An injector nozzle as defined in in which the cross section shape of each orifice includes a generally U-shape portion or a generally V-shape portion.52. An injecting apparatus for injecting a fluid under pressure into an associated chamber claim 47 , the injecting apparatus including:a body,a piston movable in ...

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01-07-2021 дата публикации

SYSTEM AND METHOD OF MANAGING THE TEMPERATURE OF FUEL INJECTED INTO INTERNAL COMBUSTION ENGINES

Номер: US20210199066A1
Принадлежит:

A system and a method of controlling the temperature of fuel injected into combustion engines, which provides a reduced amount of fuel injected into engines propelled with either pure gasoline or ethanol or any bi-fuel mixture by precisely controlling the amount of heat supplied to the fuel. 1. A system for managing the temperature of fuel injected into internal combustion engines , the system comprising:{'b': '11', 'at least one fuel transporting line ();'}{'b': 12', '11', '121', '122', '14', '122', '13', '131', '13, 'at least one fuel distribution system () associated with the fuel transporting line () having at least one main duct () and at least one branch (); a fuel injecting device () associated with the branch () and at least one fuel heating device () provided with a heating chamber (), said heating device () being placed adjacent to the fuel injecting device;'}{'b': 2', '14, 'at least one electronic control device () associated with the fuel injecting device (); and'}{'b': 3', '2', '13, 'at least one fuel heating control device () associated with the electronic control device () and associated with at least one fuel heater ();'}{'b': 4', '12', '2, 'characterized in that the system comprises at least one temperature sensor () mechanically associated with the fuel distribution system () and electrically associated with the electronic control device ().'}211. The system for managing the temperature of fuel injected into internal combustion engines of claim 1 , characterized in that the fuel transporting line () comprises a low pressure line.311. The system for managing the temperature of fuel injected into internal combustion engines of claim 1 , characterized in that the fuel transporting line () comprises a high pressure line.4412112. The system for managing the temperature of fuel injected into internal combustion engines of claim 1 , characterized in that the temperature sensor () is associated with the main duct () of the fuel distribution system (). ...

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01-07-2021 дата публикации

SYSTEM AND METHOD OF MANAGING THE TEMPERATURE OF FUEL INJECTED INTO INTERNAL COMBUSTION ENGINES

Номер: US20210199080A1
Принадлежит:

A system and a method of controlling the temperature of fuel injected into combustion engines, which provides a reduced amount of fuel injected into engines propelled with either pure gasoline or ethanol or any bi-fuel mixture by precisely controlling the amount of heat supplied to the fuel. 1. A system for managing the temperature of fuel injected into internal combustion engines , the system including:{'b': '11', 'at least one fuel transporting line ();'}{'b': 12', '11', '121', '122', '14', '122', '13', '131', '13, 'at least one fuel distribution system () associated with the fuel transporting line () having at least one main duct () and at least one branch (); a fuel injecting device () associated with the branch () and at least one fuel heating device () provided with a heating chamber (), said heating device () being placed adjacent to the fuel injecting device;'}{'b': 2', '14, 'at least one electronic control device () associated with the fuel injecting device (); and'}{'b': 3', '2', '13, 'at least one fuel heating control device () associated with the electronic control device () and associated with at least one fuel heater ();'}{'b': 4', '13', '2, 'said system being characterized in that it comprises at least one temperature sensor () subsequently mechanically associated with the fuel heating device () relative to the fuel flow and electrically associated with the electronic control device ().'}211. The system for managing the temperature of fuel injected into internal combustion engines of claim 1 , characterized in that the fuel transporting line () comprises a low pressure line.311. The system for managing the temperature of fuel injected into internal combustion engines of claim 1 , characterized in that the fuel transporting line () comprises a high pressure line.413131132133132. The system for managing the temperature of fuel injected into internal combustion engines of claim 1 , characterized in that the fuel heating device () includes a heating ...

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06-06-2019 дата публикации

Diesel dosing unit having an anti-coking injector assembly, and methods of constructing and utilizing same

Номер: US20190170037A1
Принадлежит: Continental Automotive Systems Inc

A diesel dosing unit (DDU) is disclosed, having a fluid injector assembly. The fluid injector assembly includes a fluid injector and an attachment assembly attached to a downstream end of the fluid injector, the attachment assembly at least partly defining a fluid path in fluid communication with a fluid path of the fluid injector. The DDU further includes a DDU housing in which the injector assembly is disposed, the DDU housing being configured to directly attach to an exhaust pipe of a vehicle. The fluid injector assembly is dimensioned to largely match the dimensions of an existing injector of a reductant delivery unit (RDU) such that the DDU housing utilizes the housing of the existing RDU.

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09-07-2015 дата публикации

HOLDING FIXTURE FOR AN INJECTION DEVICE FOR INJECTING A MEDIUM INTO A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE

Номер: US20150192096A1
Принадлежит: ROBERT BOSCH GMBH

A holding fixture for an injection device for the injection of a medium into a combustion chamber of an internal combustion engine is provided, the injection device including an injector provided with at least one spray-discharge orifice, from which the medium is spray-discharged; the holding fixture has a first region disposed near the spray-discharge orifice of the injector, and a second region which faces away from the spray-discharge orifice of the injector, the holding fixture having at least one tubular heat conduction device, which extends at least between the first region and the second region. 18-. (canceled)9. A holding fixture for an injection device having an injector for injecting a medium into a combustion chamber of an internal combustion engine , comprising:a first region disposed near the spray-discharge orifice of an injector;a second region facing away from the spray-discharge orifice of the injector;at least one tubular heat conduction device extending at least between the first region and the second region;wherein the injection device includes the injector which has at least one spray-discharge orifice, from which the medium is spray-discharged.10. The holding fixture of claim 9 , wherein the first region of the holding fixture is in direct contact with the combustion chamber or abuts it.11. The holding fixture of claim 9 , wherein the first region of the holding fixture is separated from the combustion chamber claim 9 , but is in thermally conductive contact with the combustion chamber.12. The holding fixture of claim 9 , wherein claim 9 , starting from the first region claim 9 , the second region is disposed at a distance from the combustion chamber.13. The holding fixture of claim 9 , wherein the at least one tubular heat conduction device has a housing holding an encapsulated volume claim 9 , and a working medium is disposed in at least a portion of the volume.14. The holding fixture of claim 9 , wherein the holding fixture is configured as ...

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25-09-2014 дата публикации

HEATED FUEL INJECTOR

Номер: US20140284398A1
Принадлежит: DELPH TECHNOLOGIES, INC.

A heated fuel injector for supplying fuel to a fuel consuming device includes a fuel inlet for receiving fuel, a fuel outlet for dispensing fuel from the fuel injector, and a fuel injector body extending along an axis and fluidly connecting the fuel inlet to the fuel outlet such that fuel flows within the injector body. A cylindrical heating element radially surrounds the fuel injector body and operates to heat fuel flowing through the fuel injector body. An annular space is defined between the heating element and the fuel injector body sufficiently large to accommodate thermally caused radial differential expansion between the fuel injector body and the heating element. A conductive material fills the annular space and has a melting point sufficiently low to be a liquid as the heating element operates to thereby substantially prevent transfer of mechanical stress to the heating element due to the radial differential expansion. 1. A heated fuel injector for supplying fuel to a fuel consuming device , said fuel injector comprising:a fuel inlet for receiving fuel;a fuel outlet for dispensing fuel from said fuel injector;a fuel injector body extending along an axis and fluidly connecting said fuel inlet to said fuel outlet, such that fuel flows within said fuel injector body;a cylindrical heating element radially surrounding said fuel injector body which operates to heat fuel flowing through said fuel injector body over a range spanning a colder temperature to a hotter temperature, with an annular space defined between said heating element and said fuel injector body sufficiently large to accommodate thermally caused radial differential expansion between said fuel injector body and heating element, and;a conductive material substantially filling said annular space and having a sufficiently low melting point to be a liquid as said heating element operates to thereby substantially prevent transfer of mechanical stress to said heating element due to said radial ...

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23-07-2015 дата публикации

FUEL INJECTION PUMP

Номер: US20150204290A1
Принадлежит:

Provided is a configuration which prevents an engine from being unable to start in the state in which dew condensation occurred in a fuel injection pump and froze. The present invention relates to a fuel injection pump which is provided with a pump body and a hydraulic head and driven by an engine, and is characterized in that while the engine is in operation, the temperature of the hydraulic head is increased to a dew-point temperature or higher. Consequently, it is possible to increase the temperature of the hydraulic head and remove water in the fuel injection pump while the engine is in operation. Accordingly, the engine can be prevented from being unable to start in the state that dew condensation occurred in the fuel injection pump and froze. 1. A fuel injection pump driven by an engine comprising: a pump body; and a hydraulic head ,characterized in that while the engine is operated, a temperature of the hydraulic head is increased to not less than a dew point.2. The fuel injection pump according to claim 1 ,wherein a water passage of a cooling water for the engine is branched off such that the cooling water contacts a member disposed at an outer face of the hydraulic head, andwherein the member is rose in temperature using the cooling water the temperature of which is increased as an engine operation to heat the hydraulic head.3. The fuel injection pump according to claim 2 ,wherein the water passage is provided with a switch valve for bypassing the passage branched off toward the member disposed in the hydraulic head, andwherein if the temperature of the hydraulic head is increased to not less than a predetermined temperature, the switch valve is operated to shut the flow of the cooling water into the member disposed in the hydraulic head.4. The fuel injection pump according to claim 1 ,wherein in the hydraulic head, a water channel for circulating the cooling water is formed, andwherein the temperature of the hydraulic head is increased by using the cooling ...

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02-10-2014 дата публикации

METHOD FOR OPERATING A DIRECT FUEL INJECTOR

Номер: US20140290597A1
Автор: Rumpsa Todd Anthony
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A method, comprising: operating an engine cylinder with fuel from a first injector and not a second injector and activating the second injector in response to a rail pressure increase of a fuel rail, the fuel rail coupled to the second injector. In this way, degradation of the second injector may be reduced by activating the second injector and allowing fuel flow through the second injector to reduce the pressure and temperature of the fuel rail. 1. A method , comprising:operating an engine cylinder with fuel from a first injector and not a second injector; andactivating the second injector in response to a rail pressure increase of a fuel rail, the fuel rail coupled to the second injector.2. The method of wherein the second injector is activated in response to rail pressure increasing above a threshold claim 1 , the rail pressure increase corresponding to a temperature increase claim 1 , the threshold correspond to a maximum temperature threshold.3. The method of wherein fuel is trapped in the fuel rail while monitoring the pressure increase claim 1 , the method further comprising activating a fuel pump coupled to the fuel rail in response to the rail pressure increase.4. The method of further comprising adjusting injection of the first injector responsive to activation of the second injector.5. The method of wherein the injector activation is further based on a fuel rail rigidity.6. The method of claim 2 , further comprising deactivating the second injector when the rail pressure decreases below the threshold.7. The method of claim 1 , wherein the injector activation is further based on a fuel coefficient of thermal expansion.8. The method of further comprising adjusting a parameter of a cooling system coupled to the fuel rail in response to a rail pressure increase of the fuel rail.9. The method of claim 8 , where the parameter is a flow rate of a coolant.10. The method of claim 8 , where the parameter is a temperature of a coolant.11. A fuel system for an ...

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30-07-2015 дата публикации

Engine Component Sleeve with an Integrated Heat Transfer Arrangement

Номер: US20150211410A1
Принадлежит: Perkins Engines Co Ltd

This disclosure is directed towards an engine component sleeve with an integrated heat transfer arrangement. The sleeve includes a wall defining a passageway, and at least heat transfer arrangement. Each heat transfer arrangement includes at least one cavity enclosed within the wall and a working fluid located within the cavity.

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27-06-2019 дата публикации

FUEL HEATING

Номер: US20190195162A1
Принадлежит: McLaren Automotive Limited

A vehicle comprising: an internal combustion engine configured to generate an engine torque using high-gasoline content fuel; at least one fuel injector configured to deliver the high-gasoline content fuel to a cylinder of the engine; at least one heating element configured to heat the high-gasoline content fuel prior to it being delivered to the cylinder by the fuel injector; a fuel pump connected to the heating element to supply high-gasoline to the heating element, the fuel pump being configured to pressurise the high-gasoline content fuel; and an engine controller configured to control the engine torque generated by the engine and control the fuel pressure generated by the fuel pump, the engine controller using a heated-fuel behaviour model of the engine, when the fuel is being heated by the heating element(s), to: (i) control an amount of fuel delivered by the fuel injector, the heated-fuel behaviour model causing a reduced fuel injection amount for a given engine torque relative to unheated high-gasoline content fuel; and (ii) cause a higher fuel pressure to be generated by the fuel pump relative to unheated high-gasoline content fuel. 128-. (canceled)29. A vehicle comprising:an internal combustion engine configured to generate an engine torque using high-gasoline content fuel;at least one fuel injector configured to deliver the high-gasoline content fuel to a cylinder of the engine;at least one heating element configured to heat the high-gasoline content fuel prior to it being delivered to the cylinder by the fuel injector;a fuel pump connected to the heating element to supply high-gasoline content fuel to the heating element, the fuel pump being configured to pressurise the high-gasoline content fuel; andan engine controller configured to control the engine torque generated by the engine and control the fuel pressure generated by the fuel pump,wherein the engine controller uses a heated-fuel behaviour model of the engine, when the fuel is being heated by the ...

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19-07-2018 дата публикации

Accumulator Centering Mechanism

Номер: US20180202400A1
Принадлежит: Caterpillar Inc

A resilient seal member disposed in an alignment groove of an accumulator body centers the accumulator body in an oversized accumulator bore of a cylinder head to prevent assembly damage. The seal member can compress to allow the accumulator body to move off center within the accumulator bore so that an end may be received by and form a seal with a port of a fuel injector. The alignment groove and the seal member are configured so that cooling fluid can flow past the seal member when the accumulator body is installed. In one implementation, the accumulator body includes at least one fluid flow channel at the alignment groove having a depth greater than the alignment groove so fluid can flow through the channel to pass the seal member.

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06-08-2015 дата публикации

FUEL INJECTION SYSTEM

Номер: US20150219050A1
Автор: UCHIYAMA Tomoyuki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A fuel injection system in the present invention is provided with a fuel injection valve () which incorporates a heater () for heating fuel before being injected. The temperature of the heater () is estimated on the basis of the resistance value Rof the heater (). The temperature of the heater () estimated at or after the time of occurrence of a point of inflection in the resistance value Rof the heater () is corrected in order to reduce to zero the difference between the nucleate boiling start point temperature and the estimated temperature value of the heater () at the time of occurrence of the point of inflection. 1. A fuel injection system , comprising:a fuel injection valve configured to inject fuel;a heater configured to receive a supply of electric power from a predetermined power source and heats fuel before the fuel is injected from the fuel injection valve; anda processor that is programmed to:estimate a temperature of the heater on a basis of a resistance value of the heater; andcorrect the estimated temperature of the heater so that a difference between a nucleate boiling start point temperature of the fuel and an estimated temperature value of the heater at a time of occurrence of a point of inflection in the resistance value of the heater after energization to the heater is started is reduced.2. The fuel injection system according to claim 1 ,wherein, to reduce the difference, the processor provides a correction to reduce the difference with respect to the temperature of the heater estimated at or after the time of occurrence of the point of inflection.3. The fuel injection system according to claim 1 ,wherein the processor corrects the estimated temperature of the heater so as to reduce the difference to zero. The present invention relates to a fuel injection system, and more particular to a fuel injection system which includes a heater for heating fuel before being injected from a fuel injection valve.So far, for example, Patent Document 1 discloses ...

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26-07-2018 дата публикации

PROTECTIVE STRUCTURE FOR FUEL PUMP

Номер: US20180208051A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A protective structure for a fuel pump includes a protector including a connecting wall, a first protective wall, and a second protective wall. The first protective wall and the second protective wall are disposed outside the fuel pump assembled to an internal combustion engine. A standing surface of the second protective wall on a side opposite to a second base end surface in a standing direction of the second protective wall includes a curved surface that is concave on the second base end surface side and that becomes closer to the second base end surface side as the curved surface becomes farther from the first protective wall. 1. A protective structure for a fuel pump , the protective structure comprising a protector including a connecting wall connected to an internal combustion engine , a first protective wall standing on the connecting wall with a first base end surface on the connecting wall side extending in a first direction , and a second protective wall standing on the connecting wall with a second base end surface on the connecting wall side extending from a first end portion of the first protective wall in a second direction intersecting with the first direction ,the first protective wall and the second protective wall being disposed outside the fuel pump assembled to the internal combustion engine, anda standing surface of the second protective wall on a side opposite to the second base end surface in a standing direction of the second protective wall including a first curved surface that is concave on the second base end surface side and that becomes closer to the second base end surface side as the curved surface becomes farther from the first protective wall.2. The protective structure for the fuel pump according to claim 1 , wherein:the protector has a support wall standing on the connecting wall with a connecting surface on the connecting wall side extending in the second direction,a height of the support wall in a standing direction of the ...

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26-07-2018 дата публикации

ROTARY INTERNAL COMBUSTION ENGINE WITH PILOT SUBCHAMBER AND IGNITION ELEMENT

Номер: US20180209332A1
Принадлежит:

A rotary engine includes an insert having a pilot subchamber defined therein and communicating with the internal cavity of the engine. A pilot fuel injector has a tip in communication with the pilot subchamber. An ignition element extends into an element cavity defined through the insert adjacent the pilot subchamber. The element cavity is in communication with the pilot subchamber through a communication opening defined in the insert between the element cavity and the pilot subchamber. The communication opening is smaller than a portion of the ignition element adjacent the communication opening such as to prevent the portion of the ignition element from completely passing through the communication opening upon breaking off of the portion of the ignition element from a remainder of the ignition element. An outer body for a rotary engine and a method of combusting fuel in a rotary engine are also provided. 1. A rotary engine comprising:an outer body having walls defining an internal cavity;a rotor rotatable within the internal cavity in sealing engagement with the walls of the outer body;an insert having a pilot subchamber defined therein, the pilot subchamber communicating with the internal cavity;a pilot fuel injector having a tip in communication with the pilot subchamber; andan ignition element extending into an element cavity defined through the insert adjacent the pilot subchamber, the element cavity in communication with the pilot subchamber through a communication opening defined in the insert between the element cavity and the pilot subchamber, the communication opening being smaller than a portion of the ignition element adjacent the communication opening such as to prevent the portion of the ignition element from completely passing through the communication opening upon breaking off of the portion of the ignition element from a remainder of the ignition element.2. The engine as defined in claim 1 , wherein the portion of the ignition element includes a tip ...

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23-10-2014 дата публикации

Dosing module

Номер: US20140311130A1
Принадлежит: ROBERT BOSCH GMBH

The invention relates to a dosing module ( 10 ) for injecting a reduction agent, in particular a urea-water solution, into an exhaust pipe of an internal combustion engine, in particular of a self-igniting internal combustion engine, to reduce nitrogen oxides in the exhaust stream, wherein the dosing module has a main cooling element ( 12 ) through which a cooling liquid flows, in particular for cooling an injection valve ( 64 ) for the reduction agent. According to the invention, an additional cooling element ( 14 ), through which the cooling liquid likewise flows, in particular for cooling in the region of an electrical plug connection ( 22 ) and of an electromagnet ( 80 ) for actuating the injection valve ( 64 ), is placed on the basis cooling element ( 12 ), wherein a guide insert ( 30 ) for the cooling liquid is arranged in the main cooling element ( 12 ). As a result of the guide insert ( 30 ), priority cooling of the end section ( 72 ) of the injection valve ( 64 ) which is in direct contact with the hot exhaust stream of the internal combustion engine occurs. According to the invention, reliable operation of the dosing module ( 10 ) is ensured, even at ambient temperatures of 160° C. and above.

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02-07-2020 дата публикации

METHOD OF CONTROL OF FUEL TEMPERATURE INJECTED IN COMBUSTION ENGINE

Номер: US20200208588A1
Принадлежит:

Method of controlling the temperature of fuel injected into a combustion engine to enable a reduction in the amount of fuel injected into engines which may be powered both by pure gasoline and by ethanol or by any biofuel mixture. 1. A Method of control of fuel temperature injected in combustion engine , comprising:an electronic fuel injection control unit in the engine,{'b': '3', 'at least one fuel-heating device () positioned in contact with the fuel;'}{'b': 6', '9', '3', '6', '3, 'at least one fuel-heating control unit () connected by means of at least one data connection to the electronic injection control unit (), and electrically connected to at least one fuel-heater (), where the fuel-heating control unit () controls the operation of at least one fuel heater ();'}characterized by comprising the stages of:{'sub': 'a', 'b': '3', 'measuring the temperature of the fuel (T) downstream of the heater ();'}{'sub': 'a', 'b': '3', 'reading a target temperature of the fuel (T) downstream of the previously cited heater ();'}{'sub': a', 'a, 'comparing the temperature of the fuel (T) downstream of the heater with the target temperature (T) downstream of the heater;'}{'sub': 'aq', 'b': '3', 'calculating the power (P) necessary to be used in the heater ();'}{'sub': 'q', 'b': 3', '6, 'applying the calculated power (Pa) to the heater () controlled by the heating control unit ();'}{'sub': a', 'a, 'comparing the temperature of the fuel (T) downstream of the heater with the target temperature of the fuel (T).'}234. The method control of fuel temperature injected in combustion engine in accordance with claim 1 , characterized by the interruption of the application of power (P) to the heater when the temperature of the fuel (T) downstream of the heater () is greater than the target temperature of the fuel (T).33. The method of control of fuel temperature injected in combustion engine in accordance with claim 1 , characterized by the interruption of the application of power (P) to ...

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02-07-2020 дата публикации

METHOD OF PREHEATING AND CONTROLLING THE TEMPERATURE OF FUEL INJECTED INTO A COMBUSTION ENGINE

Номер: US20200208595A1
Принадлежит:

Method of preheating and controlling the temperature of fuel injected into a combustion engine to enable a reduction in the amount of fuel injected into engines which may be powered both by pure gasoline and by ethanol or any biofuel mixture, where the engine is located in environments with low temperatures and extremely cold temperatures. 1. A method of preheating and controlling the temperature of fuel injected into a combustion engine , comprising:an electronic fuel injection control unit in the engine,{'b': '3', 'at least one fuel-heating device () positioned in contact with the fuel;'}{'b': 6', '9', '3', '6', '3, 'at least one fuel-heating control unit () connected by means of at least one data connection to the electronic injection control unit (), and electrically connected to at least one fuel-heater (), where the fuel-heating control unit () controls the operation of at least one fuel heater ();'}characterized by comprising the stages of:turning on the heating system;{'sub': 'inc', 'b': '3', 'measuring an initial temperature of the fuel (t) upstream of the heater ();'}{'sub': 'amb', 'measuring an ambient temperature (t);'}{'sub': 'pre', 'reading a target temperature of the pre-heated fuel (t) downstream of the heater;'}{'sub': inc', 'pre, 'b': '3', 'comparing the initial temperature of the fuel (t) upstream of the heater () and the target temperature (t) of the pre-heated fuel;'}{'sub': 'pre', 'b': '3', 'calculating a preheating power (p) necessary to be applied in the heater ();'}{'sub': 'pre', 'b': '3', 'applying a power (p) calculated in the heater () controlled by the heating control unit;'}{'sub': c', 'pre, 'comparing the temperature of the fuel (t) downstream of the heater with the target temperature (t) of the pre-heated fuel;'}{'b': '8', 'sub': c', 'pre, 'enabling the startup of the engine () when the fuel temperature condition (t) is greater than or equal to the target temperature of the preheated fuel (t);'}{'sub': 'c', 'b': '3', 'measuring a ...

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10-08-2017 дата публикации

INJECTING APPARATUS AND METHOD OF USING AN INJECTING APPARATUS

Номер: US20170226976A1
Автор: Kukler Ronald
Принадлежит: RKLAB AG

An injecting apparatus for injecting a fluid under pressure into an associated chamber, the injecting apparatus including: 1. An injecting apparatus for injecting a fluid under pressure into an associated chamber , the injecting apparatus including:—a body,a piston movable in the body under the action of fluid pressure in the associated chamber acting from externally against the piston, the piston being operable to compress fluid to be injected in a high pressure chamber, the piston being movable against the action of fluid pressure in a control chamber whereby movement of the piston is selectively controllable by controlling the fluid in the control chamber,an injector valve and an associated injector orifice in selective fluid communication with the high pressure chamber whereby high pressure fluid from the high pressure chamber can be injected through the injector orifice upon opening of the injection valve,wherein the piston defines a first piston working area facing an associated chamber, the piston first working area being annular.2. An injecting apparatus as defined in wherein the first piston working area is defined by a first outer periphery having an outer sealing surface for movement relative to a first component of the injector and by a first inner periphery having a first inner sealing surface for movement relative to a second component of the injector.3. An injector apparatus as defined in wherein the first component is fixed relative to the body.4. An injecting apparatus as defined in wherein the first component is defined by the body.5. An injecting apparatus as defined in wherein the first component is defined by a recess in the body.6. An injecting apparatus as defined in any wherein the second component is fixed relative to the body.7. An injecting apparatus as defined in wherein the second component is a valve member of an injector valve claim 6 , the valve member being fixed relative to the body.8. An injecting apparatus as defined in wherein ...

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27-08-2015 дата публикации

CIRCUIT ARRANGEMENT FOR INDUCTIVELY HEATING A FUEL INJECTOR VALVE

Номер: US20150240766A1
Принадлежит:

A circuit configuration for inductively heating a fuel injector, includes an injection valve heater coil having connections forming first and second nodes, a capacitor connected parallel to the heater coil, a first inductor connected between a positive pole of a supply voltage and the first node, a second inductor connected between the positive pole of the supply voltage and the second node, a first controllable switching element connected between the first node and a negative pole of the supply voltage, a second controllable switching element connected between the second node and the negative pole of the supply voltage, and a control unit connected to control inputs of the switching elements for applying a switch-on level to the control inputs when the voltage at the respective node connected to a switching element becomes 0 and for dimensioning a switch-on duration of the switching element according to a preset heating power. 17-. (canceled)8. A circuit configuration for inductively heating a fuel injection valve , the circuit configuration comprising:an injection valve heater coil having connections forming a first node and a second node;a capacitor connected in parallel with said heater coil;a first inductance connected between a positive terminal of a supply voltage and said first node;a second inductance connected between the positive terminal of the supply voltage and said second node;a first controllable switching element connected between said first node and a negative terminal of the supply voltage, said first controllable switching element having a control input;a second controllable switching element connected between said second node and the negative terminal of the supply voltage, said second controllable switching element having a control input; anda control unit connected to said control inputs of said controllable switching elements, said control unit applying a respective switch-on level to said switching elements when a voltage at a respective ...

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25-08-2016 дата публикации

ROTARY INTERNAL COMBUSTION ENGINE WITH PILOT SUBCHAMBER AND IGNITION ELEMENT

Номер: US20160245165A1
Принадлежит:

A rotary engine including an insert in one of the walls of the outer body. The insert has a pilot subchamber defined therein communicating with the internal cavity and includes a subchamber wall surrounding the pilot subchamber. A main fuel injector is in communication with the internal cavity at a location spaced apart from the insert. A pilot fuel injector is in communication with the pilot subchamber. A heating element extends within the subchamber wall completely outside of the pilot subchamber, in heat transfer communication with the subchamber wall. An outer body for a rotary engine and a method of combusting fuel in a rotary engine are also provided. 1. A rotary engine comprising:an outer body having walls surrounding an internal cavity;a rotor body rotatable within the internal cavity and cooperating with the walls of the outer body to define at least one chamber of variable volume;an insert in one of the walls of the outer body, the insert having a pilot subchamber defined therein communicating with the internal cavity and including a subchamber wall surrounding the pilot subchamber;a main fuel injector in communication with the internal cavity at a location spaced apart from the insert;a pilot fuel injector in communication with the pilot subchamber; anda heating element extending within the subchamber wall completely outside of the pilot subchamber, the heating element being in heat transfer communication with the subchamber wall.2. The engine as defined in claim 1 , wherein the heating element is elongated and extends along an axis.3. The engine as defined in claim 2 , wherein the axis is parallel to a longitudinal axis of the insert.4. The engine as defined in claim 1 , wherein the subchamber wall forms an indent protruding within the pilot subchamber claim 1 , and the heating element extends within the subchamber wall against the indent.5. The engine as defined in claim 1 , wherein the heating element includes a heatable wire received in a ceramic ...

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23-07-2020 дата публикации

METHOD OF MANAGING HEAT OF INJECTOR BACKFLOW

Номер: US20200232431A1
Принадлежит:

There is disclosed a method of operating an engine assembly including an internal combustion engine, a common-rail injector for injecting fuel in a combustion chamber of the internal combustion engine, and an oil circuit for lubricating components of the engine assembly. The method includes: injecting fuel in the combustion chamber via the common-rail injector; and exchanging heat between a backflow of fuel from the common-rail injector with oil of an oil circuit of the engine assembly. 1. A method of operating an engine assembly including an internal combustion engine , a common-rail injector for injecting fuel in a combustion chamber of the internal combustion engine , and an oil circuit for lubricating components of the engine assembly , the method comprising:injecting fuel in the combustion chamber via the common-rail injector, the common-rail injector being in fluid flow communication with a source of fuel;exchanging heat between a backflow of fuel from the common-rail injector with oil of an oil circuit of the engine assembly; andflowing the backflow of fuel toward the common-rail injector while bypassing the source of fuel.2. The method of claim 1 , wherein injecting the fuel includes directing a portion of the injected fuel in the combustion chamber and directing a remainder of the injected fuel out of the injector and bypassing the combustion chamber claim 1 , the backflow of fuel corresponding to the remainder of the injected fuel.3. The method of claim 1 , wherein exchanging heat between the backflow of fuel and the oil includes heating the oil by cooling the backflow of fuel.4. The method of claim 1 , wherein exchanging heat between the backflow of fuel and the oil includes cooling the oil by heating the backflow of fuel.5. The method of claim 1 , wherein exchanging heat between the backflow of fuel and the oil includes circulating the backflow of fuel in at least one first conduit of a heat exchanger and circulating the oil in at least one second ...

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01-09-2016 дата публикации

Leaschauer Engine

Номер: US20160252061A1
Автор: Eitan Leaschauer
Принадлежит: Individual

An internal combustion engine designed to provide a Leaschauer Combustion Process (LCP), including: at least one main piston housed in a main cylinder; a main axle (rotor) shaft; configured to enable an LE four cycle process; configured to enable air to fill said main cylinder prior to compression of the main cylinder; means for providing Specific Extreme Air Pressure (EAP) compressed air in said cylinder housing said main piston to dramatically exceed Specific fuel/air (Mixture) Detonation Pressure (SMD); built to withstand extreme stress applied by the Extreme Air Pressure on its main structure and moving parts; means for providing Processed Pre-Mist Fuel (PMF); means for injecting the processed pre-mist fuel into the specific Extreme Air Pressure (EAP) compressed air in the main cylinder to create a uniform unstable PRE Mist Mixture PMM), during a restricted defined window close to UDP of the main cylinder, where pressure and heat are at peak values, with a strictly defined phase; whereby said fuel injection moment is accurately controlled and timed to enable extreme high compression combustion (Extreme Pressure Detonation EPD) without risk of pre-detonation; and wherein the engine is enabled to utilize low-octane fuel without pre-detonation.

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24-09-2015 дата публикации

METHOD FOR CONTROLLING A FUEL HEATER

Номер: US20150267671A1
Принадлежит:

A method for controlling electrical power applied to a fuel heater includes applying power to the heater, determining a value for an electrical parameter that varies as a function of the temperature of the heater, and determining a value representative of the time rate of change of the electrical parameter. The method further includes determining the value of the electrical parameter corresponding to a change in the time rate of change of the electrical parameter, wherein the change in the time rate of change of the electrical parameter exceeds a predetermined threshold, and controlling electrical power applied to the heater so as to maintain the temperature of the heater about a target temperature that is a predetermined level below the heater temperature at the time at which said change in the time rate of change of the electrical parameter exceeds the predetermined threshold. 1. A method for controlling electrical power applied to a fuel heater , the method comprising the steps of:applying power to the heater,determining a value for an electrical parameter that varies as a function of the temperature of the heater,determining a value representative of the time rate of change of the electrical parameter,determining the value of the electrical parameter corresponding to a change in the time rate of change of the electrical parameter, wherein said change in the time rate of change of the electrical parameter exceeds a predetermined threshold, andcontrolling electrical power applied to the heater so as to maintain the temperature of the heater about a target temperature that is a predetermined level below the heater temperature at the time at which said change in the time rate of change of the electrical parameter exceeds the predetermined threshold.2. The method of claim 1 , wherein the electrical parameter that varies as a function of the temperature of the heater is the resistance of an electrical circuit that includes the heater.3. The method of claim 1 , wherein ...

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24-09-2015 дата публикации

Device and method for controlling a module for heating a plurality of injectors

Номер: US20150267672A1
Автор: BOISSIERE Philippe
Принадлежит:

A method, and associated device, for controlling a module for heating a plurality of fuel injectors of an engine of a vehicle, the heating module including a plurality of electromagnetic induction elements each connected to an injector of the plurality of fuel injectors and being configured, when an electric excitation current passes through the electromagnetic induction elements, to heat the injector by induction, the method including a step of generating an electric supply current and a step of generating, from the electric supply current, a plurality of electric excitation currents phase shifted relative to one another and materialized by electric excitation current signals, each of the electric excitation currents intended to supply one of the electromagnetic induction elements. The method being notable in that the electric excitation current signals are phase shifted such that the sum of the absolute values of the amplitudes of the signals is constant. 49. The device as claimed in claim 2 , characterized in that the electromagnetic induction means () are present in the form of a plurality of induction coils.51. A vehicle () comprising:{'b': 3', '5, 'an engine () comprising a plurality of fuel injectors (),'}{'b': 8', '9', '9', '5', '5', '5, 'a heating module (), comprising a plurality of electromagnetic induction means (), each of said electromagnetic induction means () being connected to an injector () of the plurality of fuel injectors () and being configured, when an electric excitation current passes through said electromagnetic induction means, to heat said injector () by induction, and'}{'b': 10', '8, 'claim-ref': {'@idref': 'CLM-00002', 'claim 2'}, 'a device () for controlling said heating module () as claimed in .'}69. The device as claimed in claim 3 , characterized in that the electromagnetic induction means () are present in the form of a plurality of induction coils.71. A vehicle () comprising:{'b': 3', '5, 'an engine () comprising a plurality of ...

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