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

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27-03-2016 дата публикации

Анализатор работы систем двигателя внутреннего сгорания

Номер: RU0000160734U1
Автор: Антон Михайлович Смирнов, Виталий Викторович Нечаев, Роман Викторович Моисеев
Принадлежит: Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования "ВОЕННАЯ АКАДЕМИЯ МАТЕРИАЛЬНО-ТЕХНИЧЕСКОГО ОБЕСПЕЧЕНИЯ имени генерала армии А.В. Хрулева"

Анализатор работы систем двигателя внутреннего сгорания, содержащий детектор тока стартера, генератор импульсов момента зажигания, компаратор, умножитель частоты тока стартера, блок совпадения с двумя входами, индикатор среднего значения тока, инвертор, пиковые детекторы максимального и минимального значений амплитуды тока стартера, индикатор разности напряжений, вольтметр постоянного тока и амперметр с датчиком тока, причем первый выход детектора тока стартера прямо и через инвертор и первый и второй выходы генератора импульсов момента зажигания соединены со входами компаратора, умножитель частоты включен между вторым выходом детектора тока стартера и входом блока совпадения, другой вход которого соединен с выходом компаратора, пиковые детекторы включены между вторым выходом детектора тока стартера и индикатором разности напряжений, а индикатор среднего значения тока подключен к третьим выходам детектора тока стартера и генератора импульсов момента зажигания, вольтметр постоянного тока подключен параллельно входу детектора тока стартера, а датчик тока устанавливается на провод, соединяющий плюсовой вывод батареи со стартером двигателя, обхватывая провод своими зажимами, интегратор с датчиком напряжения и двумя входами: суммирующим и вычитающим, вольтметр, включенный параллельно выходу интегратора, реле времени с двумя парами контактов и контрольной лампой, а нагрузка входного транзистора генератора импульсов момента зажигания выполнена на двух последовательных резисторах, причем датчик напряжения устанавливается на высоковольтный провод катушки зажигания, обхватывая его своими зажимами, а его вых РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 160 734 U1 (51) МПК G01M 15/05 (2006.01) F02P 17/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2015146376/06, 27.10.2015 (24) Дата начала отсчета срока действия патента: 27.10.2015 (45) Опубликовано: 27.03.2016 Бюл. № 9 Адрес для переписки: ...

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Номер записи: 1
20-02-2017 дата публикации

Устройство для диагностирования приборов системы питания, электростартерного пуска, информационно-измерительной системы, системы электроснабжения дизеля

Номер: RU0000168784U1
Автор: Анатолий Игоревич Винник, Антон Михайлович Смирнов, Виталий Викторович Нечаев, Николай Владимирович Солянов, Юрий Федорович Белкин
Принадлежит: Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования "ВОЕННАЯ АКАДЕМИЯ МАТЕРИАЛЬНО-ТЕХНИЧЕСКОГО ОБЕСПЕЧЕНИЯ имени генерала армии А.В. Хрулева"

Полезная модель относится к устройствам для измерения параметров системы питания, системы электростартерного пуска, информационно-измерительной системы, системы электроснабжения дизеля и может быть использована для диагностирования топливной аппаратуры, стартера и стартерной цепи, тахометра, генератора переменного тока.Разработка настоящей полезной модели направлена на расширение числа диагностируемых параметров систем дизеля.Решение поставленной задачи достигается тем, что в устройство, содержащее основание стенда, на котором размещены испытываемый топливный насос высокого давления (ТНВД), форсунки, мерные цилиндры, распределитель топлива, верхний и нижний топливные баки, подкачивающий насос стенда, топливный фильтр, демпфер манометра, манометр, топливный цилиндр, через который проходят топливопроводы высокого давления (ТВД), причем топливный цилиндр соединен с аккумулятором высокого давления топлива и с гасителем гидравлических колебаний топлива в цилиндре, а на валу испытываемого ТНВД размещен диск с установленным на нем постоянным магнитом управления открытием золотника гасителя гидравлических колебаний топлива и постоянным магнитом отметчика верхней мертвой точки (ВМТ) первого цилиндра; электрическую схему регистрации изменения давления топлива в ТВД, содержащую датчик давления топлива, размещенный в топливном цилиндре и соединенный включателем и электрическими цепями с усилителем тока, аналого-цифровым преобразователем (АЦП), портом и компьютером, причем компьютер соединен с дисплеем; электрическую схему отметчика ВМТ первого цилиндра, содержащую электрическую катушку, размещенную на РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 168 784 U1 (51) МПК G01M 15/00 (2006.01) F02M 65/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2016120148, 24.05.2016 (24) Дата начала отсчета срока действия патента: 24.05.2016 20.02.2017 (45) Опубликовано: 20.02.2017 Бюл. № 5 Адрес для переписки ...

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30-08-2017 дата публикации

Оптический измеритель давления

Номер: RU0000173567U1
Автор: Вячеслав Александрович Швец, Григорий Иванович Долгих, Сергей Владимирович Яковенко
Принадлежит: Федеральное государственное автономное образовательное учреждение высшего образования "Дальневосточный федеральный университет" (ДВФУ)

Полезная модель относится к области измерительной техники и касается оптического измерителя давления. Оптический измеритель давления включает в себя источник лазерного излучения, коллиматор, снабженный светоотражающим покрытием чувствительный элемент, светоделитель, фотодетектор, неподвижный отражатель, пьезокерамический узел и систему регистрации. Неподвижный отражатель выполнен с возможностью взаимодействия с пьезокерамическим узлом, сообщенным с выходами системы регистрации. Светоделитель выполнен в виде делительного куба, в объеме которого выполнена грань для разделения лучей, ориентированная под углом к оптической оси коллиматора. Технический результат заключается в повышение продолжительности бесперебойной работы устройства. 1 з.п. ф-лы, 1 ил. Ц 1 173567 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (11) 47а ва ВО те м: Цл (50) МПК СОГ. 2306 (2006.01) СО. 11/02 (2006.01) (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016150964, 26.12.2016 (24) Дата начала отсчета срока действия патента: 26.12.2016 Дата регистрации: 30.08.2017 Приоритет(ы): (22) Дата подачи заявки: 26.12.2016 (45) Опубликовано: 30.08.2017 Бюл. № 25 Адрес для переписки: 690950, Приморский край, г. Владивосток, ул. Суханова, 8, отдел интеллектуальной собственности ДВФУ (72) Автор(ы): Долгих Григорий Иванович (КП), ШВвец Вячеслав Александрович (КО), Яковенко Сергей Владимирович (КП) (73) Патентообладатель(и): Федеральное государственное автономное образовательное учреждение высшего образования "Дальневосточный федеральный университет" (ДВФУ) (КП) (56) Список документов, цитированных в отчете о поиске: КО 45528 01, 10.05.2005. 0$ 2008273192 А1, 06.11.2008. 05 5301010 АТ, 05.04.1994. ВО 71163 91, 27.02.2008. (54) Оптический измеритель давления (57) Реферат: Полезная модель относится к области измерительной техники и касается оптического измерителя давления. Оптический измеритель давления включает в себя источник лазерного излучения, коллиматор, ...

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26-03-2018 дата публикации

Устройство для контроля систем автоматического регулирования частоты вращения

Номер: RU0000178150U1
Автор: Алексей Леонидович Манаков, Виктор Иванович Кочергин, Сергей Павлович Глушков
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет путей сообщения" (СГУПС)

Устройство предназначено для контроля систем автоматического регулирования частоты вращения энергетических установок в целях определения их технического состояния. Устройство содержит датчик частоты вращения (1), формирователь сигналов (2), аналого-цифровой преобразователь (30, счетчик импульсов (4), измеритель времени (5), согласующее устройство (6), оперативное запоминающее устройство (7), дифференциатор (8), нуль-орган (9), логический элемент «И» (10), запоминающее устройство (11), элемент сравнения (12), второй логический элемент «И» (13), коммутатор (14), индикаторное устройство (15), переключатель режимов измерений (16) и датчик положения органа управления подачей топлива (17). Такое выполнение обеспечивает фиксацию численных значений измеряемых параметров, в том числе длительности переходного процесса регулирования частоты вращения, что способствует повышению оперативности и достоверности процесса определения технического состояния систем автоматического регулирования. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 178 150 U1 (51) МПК G01M 15/00 (2006.01) G01P 3/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01M 15/00 (2017.08); G01P 3/00 (2017.08) (21)(22) Заявка: 2017132123, 13.09.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 13.09.2017 (45) Опубликовано: 26.03.2018 Бюл. № 9 2073225 C1, 10.02.1997. WO 2000028285 A1, 18.05.2000. (54) УСТРОЙСТВО ДЛЯ КОНТРОЛЯ СИСТЕМ АВТОМАТИЧЕСКОГО РЕГУЛИРОВАНИЯ ЧАСТОТЫ ВРАЩЕНИЯ (57) Реферат: Устройство предназначено для контроля сравнения (12), второй логический элемент «И» систем автоматического регулирования частоты (13), коммутатор (14), индикаторное устройство вращения энергетических установок в целях (15), переключатель режимов измерений (16) и определения их технического состояния. датчик положения органа управления подачей Устройство содержит датчик частоты вращения топлива (17). Такое ...

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12-11-2018 дата публикации

Стенд для испытания масляных насосов двигателя внутреннего сгорания

Номер: RU0000184856U1
Автор: Вячеслав Валерьевич Бурлаков, Геннадий Владимирович Коротков, Игорь Нургалеевич Хусаинов, Рамиль Гусманович Гафуров, Сергей Викторович Башегуров, Юрий Александрович Смоляков
Принадлежит: Публичное акционерное общество "КАМАЗ"

Полезная модель относится к двигателестроению, а именно к стендам испытания масляных насосов двигателя внутреннего сгорания. Стенд для испытания масляных насосов двигателя внутреннего сгорания содержит основание (1), на котором установлен на станине (2) испытываемый масляный насос (3), электродвигатель (4) с приводным валом (5), для присоединения к нему вала испытываемого масляного насоса (3), масляную ванну (6) с маслозаборником (7). Электродвигатель (4) выполнен в виде управляемой электрической машины (4), соединенной с испытываемым масляным насосом (3) через промежуточную опору (8) вала привода, оснащенного упругими муфтами (9), (10), (11), датчиком (12) крутящего моментом, датчиком (13) частоты вращения. Стенд для испытания масляных насосов содержит гидравлическую систему, связанную с испытываемым масляным насосом (3), которая имеет соединители (14), соединительные трубопроводы с патрубком (15) слива и емкость (16) со встроенным подогревателем (17), который содержит датчик (18) температуры и терморегулятор (19) с реле включения подогревателя (17). Гидравлическая система стенда имеет технологический контур, который снабжен фильтром (20), вентилями (21), (22), (23), (24), (25), (26), (27), емкостью (28) слива, соединительными трубопроводами с патрубками (29) и (30) заполнения и слива, теплообменником (31) с управляющим электромагнитным клапаном (32) и циркуляционным насосом (33). Также стенд включает в себя управляющую магистраль (34) сигнала дифференциального клапана, который входит в испытываемый масляный насос (3), всасывающую (35) гидролинию, вход которой связан через маслозаборник (7) с масляной ванной (6), напорную (36) гидролинию, вход которой предназначен для подключения к выходному отверстию испытываемого масляного насоса (3), сливную (37) гидролинию, снабженную элементами технологического контура фильтром (20), емкостью (28) слива и патрубками (30) заполнения и слива, регулируемый дроссель 38 для регулирования рабочей жидкости в напорной (36) гидролинии ...

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Номер записи: 5
14-09-2020 дата публикации

Прибор диагностирования блоков пас-15-2с, пус-15р, бсп-1м танка т-72б3

Номер: RU0000199664U1
Автор: Александр Витальевич Колунин, Алексей Романович Астанин, Дмитрий Юрьевич Боровских, Игорь Александрович Бурьян, Кирилл Евгеньевич Гаев
Принадлежит: Федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулёва" Министерства обороны Российской Федерации

Полезная модель относится к прибору, обеспечивающему диагностику причины отказа блоков системы электрического пуска двигателя танка Т-72Б3, выполняемую без демонтажа блоков с танка.Технический результат заявки на полезную модель направлен на расширение возможности использования прибора диагностирования и снижения трудоемкости работ при поиске неисправности в системе электрического пуска двигателя танка Т-72Б3.Решение поставленной задачи достигается внедрением в существующий аналог прибора- регулятора напряжения и вольтметра, что позволит не выполнять демонтаж блоков с танка для проверки на специальном оборудовании, а с использованием разъемов-зажимов подключить прибор к аккумуляторным батареям танка, выполнив диагностику блоков без их демонтажа, что существенно сократит время на их диагностику и общее время ремонта. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 199 664 U1 (51) МПК G01M 15/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01M 15/00 (2020.08) (21)(22) Заявка: 2019136548, 13.11.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 14.09.2020 R U 1 9 9 6 6 4 U 1 Адрес для переписки: 644046, г.Омск, ул. 16 Военный городок, 406, кв. 5, Бурьян Игорю Александровичу (56) Список документов, цитированных в отчете о поиске: RU 158327 U1 27.12.2015. RU 2106516 C1 10.03.1998. RU 2143582 C1 27.12.1999. RU 2361033 C1 10.07.2009. U 1 (45) Опубликовано: 14.09.2020 Бюл. № 26 (73) Патентообладатель(и): Федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулёва" Министерства обороны Российской Федерации (RU) 1 9 9 6 6 4 Приоритет(ы): (22) Дата подачи заявки: 13.11.2019 (54) ПРИБОР ДИАГНОСТИРОВАНИЯ БЛОКОВ ПАС-15-2С, ПУС-15Р, БСП-1М ТАНКА Т-72Б3 (57) Реферат: Полезная модель относится к прибору, Решение поставленной задачи достигается обеспечивающему диагностику причины отказа ...

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Номер записи: 6
24-05-2012 дата публикации

Method for diagnosing fuel injectors

Номер: US20120125089A1
Автор: In Kwang Yoo, Michiel J. Van Nieuwstadt, Yong-Wha Kim
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A fuel injector diagnostic is disclosed. In one example, the diagnostic can determine if that amount of fuel injected or the timing of start of injection is degraded. Thus, the fuel injector diagnostic method can distinguish between different types of injector degradation.

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Номер записи: 7
06-09-2012 дата публикации

Method and system for analysis of turbomachinery

Номер: US20120226474A1
Автор: Adriana Elizabeth Trejo Sanchez, Jose Leon Vega Paez, Juan Paulo Chavez Valdovinos, Mohammad Waseem Adhami, Monica Lizbeth Perez Gamboa
Принадлежит: General Electric Co

A method and a system for analyzing turbomachinery is provided. In one embodiment, a system for analyzing turbomachinery is provided. The system includes an intelligent turbomachinery tracking filter (ITTF) system configured to determine one or more performance shifts for one or more components of the turbomachinery based on a plurality of turbomachinery parameters. The system further includes a root cause analyzer configured to determine a root cause of the turbomachinery performance based on the one or more performance shifts. The one or more performance shifts include trended data.

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Номер записи: 8
28-03-2013 дата публикации

INTERNAL FAULT INDICATOR FOR ELECTRICAL EQUIPMENT

Номер: US20130074603A1
Автор: Chisholm John Paul, Hunsberger Adam John, LEE Hyuk Jae, Pezzin Justin George
Принадлежит: IFD INTERNAL FAULT DETECTOR CORP

A fault indicator for indicating the occurrence of a rapid pressure surge within a housing of an electrical device has: a barrel capable of being mounted in an aperture of the housing; an actuating mechanism having a chamber with at least one orifice communicating between interior and exterior surfaces of the chamber within the housing and an actuating member movable in response to a pressure differential between the interior and exterior surfaces of the chamber; a plunger within the bore of the barrel biased outwardly in the barrel and normally retained in an armed position by the actuating member; and a radial seal disposed between the plunger and the barrel. When the pressure differential exceeds a positive threshold value, the actuating member is moved and thereby permits the plunger to move outwardly into a triggered position. The radial seal may be a dual-lip seal. 2. A fault indicator according to claim 1 , wherein the radial seal is sealingly engaged with the plunger and the barrel while the plunger moves outwardly from the armed position to the triggered position.3. A fault indicator according to claim 1 , wherein the chamber comprises a diaphragm and the actuating member is coupled to the diaphragm.4. A fault indicator according to claim 3 , wherein the actuating member comprises a trigger pin projecting from the diaphragm claim 3 , the trigger pin engaging a trigger notch in the plunger when the plunger is in the armed position.5. A fault indicator according to comprising a spring urging the plunger outwardly in the bore claim 4 , wherein the spring extends into a cylindrical opening on an inner end of the plunger and wherein claim 4 , upon triggering claim 4 , the spring can push the plunger to a position wherein a portion of the plunger is engaged with the trigger pin to prevent the plunger from being moved back to the armed position.6. A fault indicator according to claim 1 , wherein at least a portion of an exterior surface of the plunger is brightly ...

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Номер записи: 9
09-05-2013 дата публикации

Throttle Twist Grip

Номер: US20130111983A1
Автор: Mauch Johann
Принадлежит: GUSTAV MAGENWIRTH GMBH & CO.

A throttle twist grip includes a housing, a grip tube rotatable about an axis of rotation relative to the housing, a position detector having a position indicator and a sensor operable to detect relative position of the grip tube relative to the housing, a holder shaped to receive part of the position detector, and at least one of the holder being mounted rotatably about the axis in relation to the grip tube, the grip tube having a catch operable to carry along the holder upon actuation, the holder being rotatable about the axis in relation to the grip tube by an angle corresponding to idling play, a cruise control switch-off device, an angle of rotation limiting device disposed substantially in an axial plane of the holder, and a friction device operable to have a greater frictional resistance in an actuating direction than counter to the actuating direction upon actuation. 1. A throttle twist grip , comprisinga housing;a grip tube mounted rotatably about an axis of rotation in relation to the housing;a position detection device having a position indicator and at least one sensor operable to detect a relative position of the grip tube in relation to the housing;a holder shaped to receive part of the position detection device; and the holder being mounted rotatably about the axis of rotation in relation to the grip tube;', 'the grip tube having a catch operable to carry along the holder upon actuation of the throttle twist grip;', 'the holder being rotatable about the axis of rotation in relation to the grip tube by an angle corresponding to idling play;', 'a cruise control switch-off device;', 'an angle-of-rotation limiting device disposed in or substantially in an axial plane of the holder; and', 'a friction device operable to have a greater frictional resistance in an actuating direction than counter to the actuating direction upon actuation of the throttle twist grip., 'at least one of2. The throttle twist grip according to claim 1 , further comprising a spring ...

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Номер записи: 10
30-05-2013 дата публикации

Pressure indication device of inflation machine

Номер: US20130133565A1
Автор: Chi-Wen Chen
Принадлежит: Individual

A pressure indication device is provided to connect to an inflation mechanism of an inflation machine. The pressure indication device includes a linearly movable plate and an elastic element. A scale bar having graduations is provided along a moving path of the plate. The elastic force of compression of the elastic element serves as a reaction force (restoration and returning force) for the linear movement of the plate. Correspondingly, a pressure is induced in an air compartment of the inflation mechanism the so that the moving distance of the plate is indicative of the pressure level and thus precise measurement of pressure can be realized.

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Номер записи: 11
27-06-2013 дата публикации

SYSTEM AND METHOD OF GENERATING SELECTIVE CATALYST REDUCTION DOSING ESTIMATE FOR A DIESEL ENGINE

Номер: US20130160521A1
Автор: Kumar Raj, Makartchouk Andrei
Принадлежит: International Engine Intellectual Property Company, LLC

A control system for an engine having an in-cylinder pressure sensor and a selective catalytic reduction device comprises an electronic control module and an in-cylinder pressure sensor. The electronic control module has a processor and a memory. The in-cylinder pressure sensor is disposed in fluid communication with a cylinder of an engine. The incylinder pressure sensor is disposed in communication with the electronic control module. The in-cylinder pressure sensor generates an output indicative of a pressure within the cylinder of the engine. The processor of the electronic control module is programmed to generate an estimate of an amount of NOx produced during combustion, and calculate an amount of reductant required to react with the NOx to limit NOx emissions to a predetermined level. 1. An engine having an electronic control module , at least one in-cylinder pressure sensor , the electronic control module programmed having programming to execute a method of estimating an amount of NOx generated during combustion of a diesel engine , the method comprising:monitoring pressure within a cylinder over a combustion cycle using an in-cylinder pressure sensor;generating a value indicative of a mass-fraction of fuel combusted during each crank angle of the combustion cycle based upon the monitoring of pressure within the cylinder and volumetric properties of the cylinder over the combustion cycle;calculating an oxygen concentration during each crank angle based upon the mass-fraction of fuel combusted during each crank angle of the combustion cycle;calculating a nitrogen concentration during each crank angle based upon the mass-fraction of fuel combusted during each crank angle of the combustion cycle;calculating a flame temperature during each crank angle based upon the mass-fraction of fuel combusted during each crank angle of the combustion cycle;calculating a rate coefficient based upon the calculated flame temperature;calculating an equilibrium constant for ...

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Номер записи: 12
04-07-2013 дата публикации

IMPACT LOAD MONITORING SYSTEM AND IMPACT LOAD MONITORING METHOD FOR WIND TURBINE FOR WIND POWER GENERATION

Номер: US20130167624A1
Автор: Shoda Katsuhiko
Принадлежит: MITSUBISHI HEAVY INDUSTRIES, LTD.

An impact load monitoring system for a wind turbine for wind power generation is provided with: an acceleration sensor attached to a step-up gear connected to a main shaft ; a frequency filter for extracting a monitoring-object component contained in a target frequency domain from vibration data representing a temporal change of amplitude of the acceleration obtained by the acceleration sensor ; and a determination unit for determining whether or not amplitude of acceleration of the monitoring-object component exceeds a reference value which is set in advance, by comparing the amplitude of the acceleration with the reference value. 1. An impact load monitoring system for a wind turbine for wind power generation , comprising:an acceleration sensor attached to a peripheral device around a main shaft of the wind turbine;a frequency filter for extracting a monitoring-object component contained in a target frequency domain from vibration data, the vibration data representing a temporal change of amplitude of acceleration obtained by the acceleration sensor; anda determination unit for determining whether or not the amplitude of the acceleration of the monitoring-object component exceeds a reference value which is set in advance, by comparing the amplitude of the acceleration with the reference value.2. The impact load monitoring system for the wind turbine for wind power generation according to claim 1 , Wherein the target frequency domain includes a natural frequency of the peripheral device.3. The impact load monitoring system for the wind turbine for wind power generation according to claim 2 ,wherein the target frequency domain is not greater than 200 Hz.4. The impact load monitoring system for the wind turbine for wind power generation according to claim 3 ,wherein the acceleration sensor is attached to a step-up gear connected to the main shaft.5. The impact load monitoring system for the wind turbine for wind power generation according to claim 4 ,wherein the ...

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Номер записи: 13
08-08-2013 дата публикации

PRESSURE BELT COMPRISING REPLACEABLE SENSING ELEMENTS

Номер: US20130199302A1
Автор: DeRosa Louis, Gardner Robert, Martin Richard, VanDeWeert Joseph
Принадлежит: Kulite Semiconductor Products, Inc.

A pressure belt comprising a flexible belt, and a flat pack assembly removably attached to the flexible belt, wherein each flat pack assembly comprises at least one sensing element. Further, each flat pack assembly also comprises a memory component associated with the sensing element thereon, wherein the memory component houses data specific to the corresponding sensing element. Unlike prior art structures, each flat pack assembly is individually removable. Therefore, if one sensing element malfunctions, it may be replaced by removing the flat pack assembly comprising the malfunctioning sensing element and swapping it out for a flat pack assembly comprising an operable sensing element. This is an improvement over the prior art as it eliminates the need for replacing and recalibrating the entire pressure belt when one sensing element malfunctions, which can be both time consuming and costly. 1. A pressure belt , comprising:a flexible belt;a first flat pack assembly removably attached to the flexible belt at a first location;a sensing element disposed on the first flat pack assembly; anda memory component, for storing data corresponding to the sensing element, disposed on the first flat pack assembly.2. The pressure belt of claim 1 , further comprising a second flat pack assembly removably attached to the flexible belt at a second location.3. The pressure belt of claim 2 , wherein the first location and the second location are spaced apart such that flexible portions are disposed therebetween.4. The pressure belt of claim 2 , further comprising a first predefined region at the first location configured to house the first flat pack assembly and a second predefined region at the second location configured to house the second flat pack assembly.5. The pressure belt of claim 1 , further comprising an electrical connector disposed on the first flat pack assembly adapted to electrically connect the first flat pack assembly to the flexible belt.6. The pressure belt structure ...

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Номер записи: 14
19-09-2013 дата публикации

ESTIMATION DEVICE FOR CYLINDER INTAKE AIR AMOUNT IN AN INTERNAL COMBUSTION ENGINE

Номер: US20130239669A1
Автор: HAGARI Hideki, MAKINO Tomokazu
Принадлежит:

An estimation device for a cylinder intake air amount in an internal combustion engine is obtained which can estimate an amount of air actually sucked into a cylinder with a high degree of accuracy by using a physical model of an intake system. A volumetric efficiency corresponding value is calculated based on an exhaust efficiency (a linear function of intake pipe internal pressure) which is an index indicating an amount of residual gas which is an exhaust gas after combustion remaining in the cylinder without being discharged from the interior of the cylinder to an exhaust pipe, and an intake efficiency (a linear function of intake pipe internal pressure) which is an index indicating an amount of air coming into the cylinder from an intake pipe excluding the residual gas, whereby the estimation is carried out to a high degree of accuracy with a small number of adaptation constants. 1. An estimation device for a cylinder intake air amount in an internal combustion engine ,{'b': 1', '4, 'claim-text': [{'b': 22', '22, 'a volumetric efficiency corresponding value calculation unit (, A) that calculates a volumetric efficiency corresponding value (Kv) which is an index indicating an amount of air coming into said cylinder from said intake pipe; and'}, {'b': 21', '21, 'a cylinder intake air amount estimation unit (, A) that estimates an amount of air actually sucked into said cylinder by using said volumetric efficiency corresponding value (Kv);'}, {'b': 22', '22, 'wherein said volumetric efficiency corresponding value calculation unit (, A) calculates said volumetric efficiency corresponding value (Kv) based on an exhaust efficiency (Kex), which is an index indicating an amount of residual gas which is an exhaust gas after combustion remaining in said cylinder without being discharged into an exhaust pipe from the interior of said cylinder, and an intake efficiency (Kin), which is an index indicating an amount of air which comes into said cylinder from said intake pipe ...

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Номер записи: 15
31-10-2013 дата публикации

METHOD AND SYSTEM FOR DIAGNOSING A VACUUM SYSTEM

Номер: US20130283898A1
Автор: Pursifull Ross Dykstra, Rollinger John Eric
Принадлежит:

A vacuum system diagnostic is disclosed. In one example, vacuum system leaks are diagnosed via a pressure reading of a vacuum reservoir. The approach may reduce the number of sensors used to diagnose vacuum system degradation. 1. A method for diagnosing a vacuum system , comprising:applying a vacuum to a vacuum reservoir, the vacuum reservoir in pneumatic communication with a wastegate; andproviding an indication of vacuum system degradation in response to a decrease in vacuum in a pneumatic passage extending between an electric vacuum regulator and the wastegate; andsetting a flag responsive to the indication of vacuum system degradation.2. The method of claim 1 , where the vacuum is increased via an engine intake manifold before providing the indication of vacuum system degradation.3. The method of claim 1 , where the vacuum is increased via a vacuum pump before providing the indication of vacuum system degradation.4. The method of claim 1 , where the wastegate is coupled to an engine claim 1 , and where the engine is stopped.5. The method of claim 4 , where the vacuum pump is an electric vacuum pump claim 4 , and where the electric vacuum pump activated for a predetermined amount of time or until a predetermined vacuum is reached in the pneumatic passage claim 4 , where the electric vacuum pump is deactivated after reaching the predetermined vacuum or amount of time claim 4 , and further performing a pressure decay diagnostic.6. The method of claim 1 , where the wastegate is coupled to an engine claim 1 , and where the engine is rotating.7. The method of claim 6 , further comprising inhibiting the indication of vacuum system degradation when vacuum consumption from the vacuum system is greater than a threshold amount.8. The method of claim 1 , further comprising delaying measuring the decrease in vacuum in the pneumatic passage for a predetermined amount of time after applying the vacuum.9. A method for diagnosing a vacuum system claim 1 , comprising:commanding ...

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Номер записи: 16
28-11-2013 дата публикации

SPARK PLUG WITH COMBUSTION SENSOR

Номер: US20130312505A1
Автор: Burrows John A., Tinwell Paul
Принадлежит: FEDERAL-MOGUL IGNITION COMPANY

A spark plug assembly has a ceramic insulator with a metal outer shell surrounding at least a portion of the insulator. A ground electrode is operatively attached to the outer shell and a center electrode having an elongate body extends through the insulator. The center electrode and the ground electrode provide a spark gap. A force sensor is received about the insulator. An annular inner shell is received between the outer shell and the insulator, wherein the inner shell has a surface configured to confront the insulator along an axial direction. 1. A spark plug assembly , comprising:a generally annular ceramic insulator having an annular surface extending between an upper mast portion and a lower distal end, said annular surface transitioning via a shoulder to a reduced diameter nose portion;a metal annular outer shell surrounding at least a portion of said ceramic insulator, said outer shell having a radially outwardly extending flange;a ground electrode operatively attached to said outer shell;a center electrode received in said ceramic insulator, said center electrode extending between an upper terminal end and a lower firing end, said lower firing end extending out of said nose portion of said insulator, said lower firing end of said center electrode and said ground electrode providing a spark gap;a force sensor disposed about said insulator;an annular inner shell received between said outer shell and said insulator, said inner shell having a first surface configured to confront said shoulder of said insulator along an axial direction; andsaid inner shell extending from an upper end to a lower end, said inner shell having a radially outwardly extending shoulder between said upper end and said lower end being fixed to said flange of said outer shell and the remaining portion of said inner shell remaining spaced from said outer shell.2. A spark plug assembly , comprising:a generally annular ceramic insulator;a metal annular outer shell surrounding at least a ...

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Номер записи: 17
05-12-2013 дата публикации

METHOD AND DEVICE FOR DIAGNOSING AN ACTUATOR FOR AN EXHAUST-GAS-DRIVEN SUPERCHARGER

Номер: US20130319093A1
Автор: BLEILE Thomas, MENOLD Patrick
Принадлежит: ROBERT BOSCH GMBH

A method for testing a supercharger actuator for a supercharger of a supercharged internal combustion engine, including adjusting the supercharger actuator from a first position to a second position, determining a rotational speed change information, which is a function of the change of the rotational speed of the supercharger resulting from the adjustment, and establishing a malfunction of the supercharger actuator as a function of the rotational speed change information. 1. A method for testing a supercharger actuator for a supercharger of a supercharged internal combustion engine , comprising:adjusting the supercharger actuator from a first position to a second position;determining rotational speed change information, the rotational speed information being a function of a change of a rotational speed of the supercharger resulting from the adjustment; andestablishing a malfunction of the supercharger actuator as a function of the rotational speed change information.2. The method as recited in claim 1 , wherein the rotational speed change information indicates a rotational speed gradient over time.3. The method as recited in claim 2 , wherein the malfunction of the supercharger actuator is established if the rotational speed change information indicates a rotational speed gradient that is lower than a specified rotational speed change threshold value.4. The method as recited in claim 1 , further comprising:determining a first rotational speed information via a first rotational speed of a compressor of the supercharger in the first position of the supercharger actuator;determining a second rotational speed information via a second rotational speed of a compressor of the supercharger in the second position of the supercharger actuator;determining a difference between the first and the second rotational speed information as the rotational speed change information; andestablishing the malfunction of the supercharger actuator as a function of the difference between the ...

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Номер записи: 18
05-12-2013 дата публикации

GLOW PLUG WITH COMBUSTION PRESSURE SENSOR

Номер: US20130319094A1
Автор: MAEDA Shunsuke, MATSUI Masayoshi, Nakamura Yoshihiro
Принадлежит: NGK SPARK PLUG CO., LTD.

A seal member () has a dual-tube structure consisting of an outer tubular seal member () and an inner tubular seal member (); the outer tubular seal member () is welded, at its rear end portion, to the inner circumferential surface of a forward-end housing (), thereby forming a housing-side joint W; the inner tubular seal member () is welded, at its forward end portion, to a forward end portion of the outer tubular seal member (), thereby forming an inter-tubular-seal-member joint W; and the inner tubular seal member () is welded, at its portion located rearward of the joint W, to the outer circumferential surface of the heater (), thereby forming a heater-side joint W. An action of pressing the heater forward is effected on the basis of an axial dimension L between the joints W and W shorter than an axial dimension between the joints W and W and is, therefore, mitigated. 1. A glow plug having a combustion pressure sensor in which a rodlike heater is disposed in a tubular housing in an axially displaceable manner with its forward end projecting from a forward end of the housing and with a gap retained between an inner circumferential surface of the housing and an outer circumferential surface of the heater and which has a sensor capable of sensing combustion pressure through detection of pressure or displacement generated as a result of the combustion pressure pressing the heater rearward from the forward end of the heater ,wherein a holding member in a tubular shape formed in a deformable manner so as to allow the displacement of the heater and externally fitted to the heater so as to hold the heater is disposed in an annular gap between the outer circumferential surface of the heater and an inner circumferential surface of a forward end of the housing or a portion of the housing located toward the forward end of the housing, in such a manner as to partition the annular gap into axially forward and rearward parts, and is joined to the housing and to the heater ...

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Номер записи: 19
19-12-2013 дата публикации

COMBUSTION PRESSURE SENSOR

Номер: US20130333456A1
Автор: MAEDA Shunsuke, MATSUI Masayoshi, Nakamura Yoshihiro
Принадлежит: NGK SPARK PLUG CO., LTD.

A combustion pressure sensor () includes a housing () having an axial hole (), a flexible member () fixed at one end to the housing () and being displaceable along the direction of axis (CL), a pressure transmission body () whose outer circumferential surface is fixed to the other end of the flexible member (), and a sensor element () fixed to the housing () and outputting a signal on the basis of a pressure applied thereto from the pressure transmission body (). The housing () includes a main body portion () having a screw portion (), and a cap member () having a press contact portion () which is pressed against the internal combustion engine when the screw portion () is screwed into the mounting hole of an internal combustion engine. The one end of the flexible member () is fixed to the main body portion (). 1. A combustion pressure sensor comprising:a tubular housing having an axial hole extending in a direction of an axis;a flexible member disposed within the axial hole and fixed at one end to the housing, the flexible member being displaceable and contractable along the direction of the axis;a rod-shaped pressure transmission body inserted into the axial hole and fixed, through its outer circumferential surface, to the other end of the flexible member, the pressure transmission body having a front end portion exposed to the outside; anda sensor element fixed directly or indirectly to the housing and outputting a signal on the basis of a pressure applied thereto from the pressure transmission body, whereinthe housing includes a main body portion having, on its outer circumferential surface, a screw portion for screw engagement with a mounting hole of an internal combustion engine, and a cap member joined to a front end portion of the main body portion and having a press contact portion which is press-contacted with the internal combustion engine when the screw portion is screwed into the mounting hole of the internal combustion engine; andthe one end of the ...

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Номер записи: 20
06-03-2014 дата публикации

Multi-mode holographic pressure sensor

Номер: US20140060199A1
Автор: Paul Eric Sanders, Trevor Wayne MacDougall
Принадлежит: QOREX LLC

A holographic pressure sensing apparatus includes a first optical fiber with a diffractive element at its end face, and a light-coupling component for receiving from the first optical fiber end face first and second images respectively formed by interaction with the diffractive element of a first light of a first wavelength and a second light of a second wavelength. Displacement of the light-coupling component, toward or away from the first optical fiber end face, will adjust an overlap of the first and second images, such that a change in a measurement of said overlap will indicate a change of the pressure in the fluid surrounding the casing.

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Номер записи: 21
20-03-2014 дата публикации

GLOW PLUG

Номер: US20140076039A1
Автор: Fukui Katsuhiko, Matsumoto Sou
Принадлежит: Mikuni Corporation

A glow plug includes: a heater power-conduction shaft that supplies power to a heater; a pressure detection element that is provided in an axial-direction end portion of the heater power-conduction shaft and converts pressure that the heater power-conduction shaft receives in the axial direction into an electrical signal; a first insulation member that surrounds an outer periphery of the pressure detection element with respect to the axis, and allows a signal output terminal of the pressure detection element to protrude toward an outer peripheral side of the axis; a power supply wire that is provided on an outer peripheral side of the first insulation member with respect to the axis, and is connected to the heater power-conduction shaft to supply power to the heater; a signal processing circuit that is provided on an outer peripheral side of the power supply wire with respect to the axis, and is connected to the signal output terminal to process an electrical signal of the pressure detection element; and a second insulation member that is provided between the power supply wire and the signal processing circuit, and insulates the signal processing circuit from the power supply wire. 1. A glow plug , comprising:a heater power-conduction shaft that supplies power to a heater;a pressure detection element that is provided in an axial-direction end portion of the heater power-conduction shaft and converts pressure that the heater power-conduction shaft receives in the axial direction into an electrical signal;a first insulation member that surrounds an outer periphery of the pressure detection element with respect to the axis, and allows a signal output terminal of the pressure detection element to protrude toward an outer peripheral side of the axis;a power supply wire that is provided on an outer peripheral side of the first insulation member with respect to the axis, and is connected to the heater power-conduction shaft to supply power to the heater;a signal processing ...

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Номер записи: 22
03-04-2014 дата публикации

ENGINE STROKE DETERMINATION APPARATUS

Номер: US20140090459A1
Автор: KAWAUCHI Hirofumi, SUZUKI Toshiyuki
Принадлежит:

There is provided an engine stroke determination apparatus. The engine stroke determination apparatus is for determining stroke of a single-cylinder four-stroke engine and includes a transistor igniter. The apparatus is configured to determine a compression stroke and an exhaust stroke by comparing voltages of ignition signals that are output in the compression stroke and the exhaust stroke by the transistor igniter. 1. An engine stroke determination apparatus for determining a stroke of a single-cylinder four-stroke engine , the engine stroke determination apparatus comprising a transistor igniter ,wherein the engine stroke determination apparatus determines a compression stroke and an exhaust stroke by comparing voltages of ignition signals that are output in the compression stroke and the exhaust stroke by the transistor igniter.2. The engine stroke determination apparatus according to claim 1 , comprising a determination circuit to generate a different number of pulses in accordance with the voltage of the ignition signal. The present application claims priority from Japanese Patent Application No. 2012-216223 filed on Sep. 28, 2012, the entire contents of which are hereby incorporated by reference.1. Technical FieldThe present invention relates to engine stroke determination apparatuses, and more particularly, to an engine stroke determination apparatus capable of making a determination with a high degree of accuracy using a simple configuration.2. Related ArtA four-stroke general purpose engine used in industrial field is requested to determine a stroke for the purpose of improving fuel efficiency and emission performance thereby not performing ignition in an exhaust stroke (wasteful ignition) to prevent after-burns in which unburned fuel is burned in an exhaust system and performing fuel injection only in an intake stroke instead of performing so-called fuel injection in every stroke.For example, Japanese Unexamined Patent Application Publication (JP-A) No. ...

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Номер записи: 23
07-01-2021 дата публикации

Adaptive any-fuel camless reciprocating engine

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

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

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Номер записи: 24
08-01-2015 дата публикации

Method for Monitoring a Combustion Engine

Номер: US20150007642A1
Автор: Angeby Jakob
Принадлежит:

A method for extracting characterizing features from an ion current trace retrieved from spark plugs of cylinders of an internal combustion engine, comprises the steps of: i. dividing the ion current signal into crank angle subintervals; ii. calculating a measure of ion current in each crank angle subinterval; and iii. Performing a calculation on the measure of ion currents from different subintervals such that the result of the calculation is dimension free. Further it relates to a method of monitoring combustion processes where a plurality of ion current signals from a number of spark plugs (A, B) are retrieved and used in combination. 1. A method for monitoring combustion processes of a cylinders of a spark ignited internal combustion engine , comprising the steps of:i. Retrieving an ion current signal from a spark plug of the cylinders to be monitored;ii. Performing a first calculation on said ion current signals in a first calculation unit;iii. Sending the result of the first calculation to a second calculation unit, andiv. Comparing the results from the first calculation unit in the second calculation unit, characterized in that a plurality of ion current signals from a number of spark plugs are retrieved and the results of said plurality of ion current signals being used in combination in said second calculation unit.2. The method of claim 1 , wherein the first calculation includes retrieving a plurality of ion current features claim 1 , wherein each ion current feature relates to a subset of data from said ion current signals.3. The method of claim 1 , comprising the further step of:v. Dividing said first calculation unit into a prior calculation unit and a subsequent calculation unit, wherein the calculation performed in said subsequent calculation unit includesvi. Comparing the result of the first calculation with corresponding results made on ion current signals from an engine running in a balanced mode.4. The method of claim 3 , comprising the further ...

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Номер записи: 25
27-01-2022 дата публикации

MINIATURE DIAPHRAGM-BASED FIBER-OPTIC TIP FP PRESSURE SENSOR, AND FABRICATION METHOD AND APPLICATION THEREOF

Номер: US20220026297A1
Автор: JING Zhenguo, LI Ang, Liu Qiang, LIU Yueying, Peng Wei
Принадлежит:

A miniature diaphragm-based fiber-optic tip FP pressure sensor, and fabrication method and application thereof. A miniature diaphragm-based fiber-optic tip FP pressure sensor includes an optical fiber, a hollow-core optical fiber, and a pressure sensing diaphragm, wherein the optical fiber and the hollow-core optical fiber have the same diameter, the two are spliced by arc welding; and the pressure sensing diaphragm is bonded to the endface of the hollow-core optical fiber by hydroxide catalysis bonding. The FP pressure sensor can not only realize the all-silica structure of a sensor, but also make the joint of each component free of organic polymer, and has extremely high long-term stability and thermal stability. Meanwhile, by means of a fabrication method of the miniature diaphragm-based fiber-optic tip FP pressure sensor, the application range and service life of the sensor are increased, and fabrication costs are reduced. 1. A miniature diaphragm-based fiber-optic tip FP pressure sensor , comprising an optical fiber , a hollow-core optical fiber and a pressure sensing diaphragm , wherein the optical fiber and the hollow-core optical fiber have the same diameter , the two are spliced by arc welding; and the pressure sensing diaphragm is bonded to the endface of the hollow-core optical fiber by hydroxide catalysis bonding;the hollow-core optical fiber has an inner diameter of 30-100 μm, and a length of 10-1000 μm; andthe pressure sensing diaphragm has a thickness of 0.1-100 μm.2. The miniature diaphragm-based fiber-optic tip FP pressure sensor according to claim 1 , wherein the diaphragm is made of silicon dioxide claim 1 , silicon claim 1 , or sapphire.3. The miniature diaphragm-based fiber-optic tip FP pressure sensor according to claim 1 , wherein the hollow-core optical fiber is a hollow-core optical fiber or a multimode optical fiber with fiber core removed by corrosion.4. A fabrication method of the miniature diaphragm-based fiber-optic tip FP pressure ...

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Номер записи: 26
03-02-2022 дата публикации

Systems And Methods For Mitigating Wind Throb In Vehicles

Номер: US20220032746A1
Автор: Al hayek Ibaa, Dean William, Filho Newton A.G., Gulker William S., Kreder Richard A., Murray Chris
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Systems and methods for mitigating wind throb in vehicles are disclosed herein. An example method includes detecting wind throb in a cabin of a vehicle due to opening of a first window of the vehicle, determining when a seat that is adjacent to a second window of the vehicle is unoccupied, opening the second window when the seat is determined to be unoccupied so as to compensate for the wind throb, determining that the first window has been closed, and closing the second window in response to closing of the first window. 1. A method , comprising:detecting wind throb in a cabin of a vehicle due to opening of a first window of the vehicle;determining when a seat that is adjacent to a second window of the vehicle is unoccupied;opening the second window when the seat is determined to be unoccupied to compensate for the wind throb;determining that the first window is being closed; andclosing the second window in response to closing of the first window.2. The method according to claim 1 , wherein detecting wind throb includes determining when the first window is an only window open claim 1 , the vehicle comprising a plurality of windows that include at least the first window and the second window.3. The method according to claim 1 , wherein detecting wind throb includes determining any of a wind speed claim 1 , wind direction claim 1 , and a velocity of the vehicle.4. The method according to claim 1 , wherein detecting wind throb includes detecting a cyclical change in pressure that is indicative of wind throb or detecting wind throb through audio signals captured by a microphone in the cabin.5. The method according to claim 1 , further comprising closing the first window when all seats of the vehicle that are adjacent to windows are occupied including the second window.6. The method according to claim 5 , further comprising activating a climate control system of the vehicle when the first window is closed.7. The method according to claim 1 , wherein the first window and ...

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Номер записи: 27
19-01-2017 дата публикации

AIR-FUEL RATIO DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20170016872A1
Автор: Nakasaka Yukihiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An in-cylinder pressure sensor is provided. It is determined whether a cylinder for which the in-cylinder air-fuel ratio is to be calculated is a rich cylinder or a lean cylinder. A polytropic index in the expansion stroke is calculated from the in-cylinder pressure detected by the in-cylinder pressure sensor. The calculated polytropic index m is corrected based on an operational condition parameter of an internal combustion engine. An in-cylinder air-fuel ratio is calculated based on the corrected polytropic index m in the expansion stroke, the result of the determination of whether the cylinder is a rich cylinder or a lean cylinder, and an m-A/F curve. 1. An air-fuel ratio detection device for an internal combustion engine , comprising:an in-cylinder pressure detector configured to detect an in-cylinder pressure; andan ECU, the ECU programmed to:(a) determine whether a cylinder for which an index value of an in-cylinder air-fuel ratio is to be calculated is a rich cylinder, for which the in-cylinder air-fuel ratio is richer than a stoichiometric air-fuel ratio, or a lean cylinder, for which the in-cylinder air-fuel ratio is leaner than the stoichiometric air-fuel ratio;(b) calculate a polytropic index in an expansion stroke from the in-cylinder pressure detected by the in-cylinder pressure detector;(c) correct the calculated polytropic index based on an operational condition parameter of the internal combustion engine; and(d) calculate the index value of the in-cylinder air-fuel ratio based on the corrected polytropic index in the expansion stroke, a result of the determination of whether the cylinder for which the index value of the in-cylinder air-fuel ratio is to be calculated is a rich cylinder or a lean cylinder, and relationship information that prescribes a relationship between the polytropic index in the expansion stroke and the index value of the in-cylinder air-fuel ratio under a reference operational condition.2. The air-fuel ratio detection device ...

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Номер записи: 28
17-04-2014 дата публикации

Device for sensing a pressure, particularly a pressure in a combustion chamber of an internal combustion engine

Номер: US20140102185A1
Автор: Gorzolka Martin, Scholzen Holger, WOLFF Janpeter
Принадлежит:

A device for sensing a pressure, particularly in a combustion chamber of an internal combustion engine. The device has a housing and an adapter element, secured in the housing, for accommodating a sensor module. The sensor module includes a transmission element, a sensor element and a supporting element, the sensor module being supported by way of the transmission element on a compensation member which is joined to the adapter element, and by way of the supporting element on a fixing element. At an end face pointing toward the sensor module, the compensation member is provided with a circular recess, in which the transmission element is accommodated in centered fashion. 110-. (canceled)11. A device for sensing a pressure , in a combustion chamber of an internal combustion engine , comprising:a housing;a sensor module disposed in the housing; andan adapter element secured in the housing;wherein the sensor module includes at least one transmission element and one sensor element, and the sensor module being supported by the transmission element on a compensation member joined to the adapter element, andwherein the compensation member, on an end face pointing toward the sensor module, includes a recess in which the transmission element is accommodated in a centered fashion.12. The device of claim 11 , wherein perpendicular to the axial extension of the sensor module claim 11 , the transmission element has a cornered cross-section claim 11 , and the corners of the transmission element include roundings.13. The device of claim 12 , wherein the cornered cross-section of the transmission element is adapted essentially to a cornered cross-section of the sensor element.14. The device of claim 11 , wherein the recess in the compensation member is circular claim 11 , wherein the roundings have one common rounding circle claim 11 , and wherein the transmission element including the roundings is inserted in the circular recess in the compensation member.15. The device of claim 14 ...

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Номер записи: 29
26-01-2017 дата публикации

Capacitive cylinder pressure sensor

Номер: US20170023440A1
Автор: Elers Kai-Erik, KOPPINEN Panu, Sillanpaa Teuvo
Принадлежит:

A capacitive pressure sensor for an internal combustion engine is provided having a housing having a bottom surface, variable capacitor and circuitry. The variable capacitor is formed by a stationary electrode and an elastically bendable electrode. Pressure exerted on the bottom surface acts to bend the elastically bendable electrode. This bending alters the capacitance of the variable capacitor. The circuitry is configured to generate a signal based on the variable capacitance of the variable capacitor. This capacitance is representative of the pressure exerted on the bottom surface. 1. A capacitive pressure sensor mountable to the cylinder head of an internal combustion engine , the capacitive pressure sensor comprising:a cylindrical housing having a threaded outer surface and a bottom surface;a variable capacitor having a stationary electrode and an elastically bendable electrode, the stationary electrode being disposed within the housing and the elastically bendable electrode being arranged between the stationary electrode and the bottom surface; andcircuitry configured to generate a signal based on the variable capacitance of the variable capacitor, the signal being representative of a pressure exerted on the bottom surface;wherein the stationary electrode is disposed substantially perpendicular relative to the outer surface of the housing.2. The capacitive pressure sensor according to claim 1 , wherein the elastically bendable electrode forms at least a portion of the bottom surface.3. The capacitive pressure sensor according to claim 1 , wherein the stationary electrode is substantially parallel to the elastically bendable electrode.4. The capacitive pressure sensor according to claim 1 , wherein the bottom surface is configured to be exposed to the cylinder of the combustion engine.5. The capacitive pressure sensor according to claim 1 , wherein the elastically bendable electrode is configured to be exposed to the cylinder of the combustion engine.6. The ...

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Номер записи: 30
24-04-2014 дата публикации

Pressure gauge

Номер: US20140109661A1
Автор: Bernd Last, Christian Pottiez, Georg Rixecker
Принадлежит: BORGWARNER BERU SYSTEMS GMBH

The invention relates to a pressure gauge for measuring the pressure in a combustion chamber of an engine, comprising a housing, a tappet, which is movable in the housing in an axial direction under the action of combustion chamber pressure, a sensor for detecting an axial displacement of the tappet, and a force transmitter, in order to transmit a force loading the tappet to the sensor. In accordance with the invention, the force transmitter has at least one damping section for damping flexural vibrations, at which its flexural rigidity is reduced.

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Номер записи: 31
29-01-2015 дата публикации

SYSTEM AND METHOD FOR DETERMINING THE NET OUTPUT TORQUE FROM A WASTE HEAT RECOVERY SYSTEM

Номер: US20150027118A1
Автор: Ernst Timothy C., TRICAUD Christophe, ZIGAN James A.
Принадлежит:

The disclosure provides a waste heat recovery system with a system and method for calculation of the net output torque from the waste heat recovery system. The calculation uses inputs from existing pressure and speed sensors to create a virtual pump torque sensor and a virtual expander torque sensor, and uses these sensors to provide an accurate net torque output from the WHR system. 1. A computerized method comprising:receiving a high pressure value corresponding to fluid pressure on a high pressure side of a fluid circuit of a waste heat recovery system of an internal combustion engine;receiving a low pressure value corresponding to fluid pressure on a low pressure side of a fluid circuit of the waste heat recovery system;receiving an engine speed value;determining an energy conversion device output torque of an energy conversion device of the waste heat recovery system based on the high pressure value, the low pressure value and the engine speed value;determining a pump output torque of a pump component of the waste heat recovery system based on the high pressure value, the low pressure value, and the engine speed value; andcalculating, the net output torque from the waste heat recovery system based on a difference between the energy conversion device output torque and the pump output torque.2. The method of claim 1 , further comprising determining the energy conversion device output torque of an energy conversion device of the waste heat recovery system in response to a time derivative of the high pressure value and the low pressure value.3. The method of claim 1 , further comprising determining the energy conversion device output torque of an energy conversion device of the waste heat recovery system in response to a static torque of the energy conversion device under a steady state condition.4. The method of claim 1 , further comprising determining a pump power value and a pump speed value claim 1 , and determining the pump output torque in response to the ...

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Номер записи: 32
04-02-2016 дата публикации

Method and system for determining causes of engine stop using ignition power monitoring

Номер: US20160032858A1
Автор: Seung-Bum Kim
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A method for determining causes of engine stop using ignition power monitoring may include performing ignition power holding determination to determine, in a state in which a vehicle is started and an engine is driven, whether the vehicle is in a key-on state, to which power is consistently applied, in order to hold the starting of the engine of the vehicle. The method also includes performing power-off recognition time comparison by comparing, when ignition power is turned off and the engine is stopped, a time required to recognize ignition power-off in an ECU (Electronic Control Unit) with a preset ignition power-off recognition time for failure determination. The method also performs a power abnormality determination by determining whether the engine is stopped due to ignition power failure when the time required to recognize the ignition power-off in the ECU is not greater than the preset ignition power-off recognition time.

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Номер записи: 33
04-02-2016 дата публикации

SUPPORT FOR AN ELECTRONIC MODULE OF A PRESSURE MEASUREMENT SENSOR

Номер: US20160033365A1
Автор: JOLY Matthieu, PATRI Cyrille
Принадлежит:

A support () for an electronic module () for generating a signal, this module being intended to be inserted into a sensor () for measuring the pressure of the gases contained in a vehicle cylinder, the support () including a portion () for receiving the electronic module () and elements () for retaining the electronic module () on the receiving portion (), the electronic module () including a body (), the receiving portion () including elements () for attaching the retaining elements (), and the retaining elements () being configured to pivot between an open position (PO) in which the electronic module () can be placed on the receiving portion () and a closed position in which the retaining elements () are attached to the attachment elements () in order to retain the body () of the electronic module () on the support (). 1177117197257197819313125257192531318717a,ba,b. A support () for an electronic module () for generating a signal , this module being intended to be inserted into a sensor () for measuring the pressure of the gases contained in a vehicle cylinder , said support () comprising a portion () for receiving said electronic module () and means () for retaining the electronic module () on said receiving portion () , the electronic module () comprising a body () , wherein the receiving portion () comprises means () for attaching said retaining means () , and the retaining means () are configured to pivot between an open position (PO) in which the electronic module () can be placed on the receiving portion () and a closed position (PF) in which the retaining means () are attached to the attachment means () in order to retain the body () of the electronic module () on the support ().225297. The support as claimed in claim 1 , wherein the retaining means comprise at least one cover () configured to come into contact with a wall () of an electronic module ().325. The support as claimed in claim 2 , wherein the retaining means comprise a single cover ().42517. The ...

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Номер записи: 34
01-02-2018 дата публикации

INTEGRATED FAULT MONITORING APPARATUS FOR ELECTRICAL EQUIPMENT

Номер: US20180031625A1
Автор: Chisholm John Paul, LIN Yen-You, Pezzin Justin George, RAMSDEN Sophie Anne, VAN HORN Jeremy Michael
Принадлежит:

An integrated fault monitoring apparatus for electrical devices has an internal fault detector for detecting transient pressure surges within the electrical device, a pressure relief valve for allowing release of pressure during normal operating conditions of the electrical device, a temperature indicator for indicating that an operating temperature of the electrical device has gone above a predetermined threshold, and/or a sudden pressure relief device for allowing air to escape from the electrical device in the event of a sudden and significant increase in pressure within the electrical device. Methods of using the apparatus are provided. 1. An internal fault detector for detecting transient pressure surges within an electrical device , the internal fault detector comprising a housing , wherein the internal fault detector comprises:a two-bar self-locking linkage;a pressure sensing member adapted to convert a transient pressure surge within the electrical device to translational movement, the pressure sensing member being operatively disposed to move the two-bar self-locking linkage from an armed configuration in which the two-bar self-locking linkage is rigid to a triggered configuration in which the two-bar self-locking linkage is rotatable about a central rotation point of the linkage upon the occurrence of a transient pressure surge; andan indicator adapted to provide a signal in response to movement of the two-bar self-locking linkage from the armed configuration to the triggered configuration.2. An internal fault detector as defined in claim 1 , wherein the two-bar self-locking linkage comprises:first and second bars pivotally coupled together at the central rotation point, the first and second bars being generally longitudinally aligned but angled slightly inwardly and downwardly when the two-bar self-locking linkage is in the armed configuration; anda retaining surface that prevents further rotation of the first two-bar self-locking linkage past the armed ...

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Номер записи: 35
30-01-2020 дата публикации

PRESSURE SENSOR

Номер: US20200033218A1
Автор: Fukui Katsuhiko, Sato Tomoya
Принадлежит: Mikuni Corporation

A pressure sensor is provided. In a pressure sensor including tubular housings, a diaphragm fixed to a tip end of the housing and exposed to a pressured medium, and a pressure measurement member constituted by a first electrode, a piezoelectric element, and a second electrode which are sequentially stacked inside the housing, a heat-insulating member disposed inside the housing so as to be interposed between the diaphragm and the first electrode is provided. 1. A pressure sensor comprising:a conductive housing which is configured to have a tubular shape;a conductive diaphragm which is fixed to a tip end of the housing and exposed to a pressured medium;a pressure measurement member which includes a first electrode, a piezoelectric element, and a second electrode which are sequentially stacked inside the housing;a preload imparting member which is disposed inside the housing in order to press the pressure measurement member toward the diaphragm to impart a preload; anda heat-insulating member which is disposed inside the housing so as to be interposed between the diaphragm and the first electrode.2. The pressure sensor according to claim 1 , whereinthe diaphragm includes a flexible plate-shaped portion fixed to the housing and a protrusion portion protruding toward an inside of the housing from a center region of the flexible plate-shaped portion, andthe heat-insulating member is disposed so as to be interposed between the protrusion portion and the first electrode.3. The pressure sensor according to claim 1 , wherein the preload imparting member includes a conductive fixation member fixed to the housing and an insulating member disposed between the fixation member and the second electrode.4. The pressure sensor according to claim 2 , wherein the preload imparting member includes a conductive fixation member fixed to the housing and an insulating member disposed between the fixation member and the second electrode.5. The pressure sensor according to claim 3 , wherein ...

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Номер записи: 36
04-02-2021 дата публикации

Metal-Embedded Optical Fibers for Monitoring Pressure or Corrosion at High Temperatures

Номер: US20210033479A1
Автор: Liu Yun, Petrie Christian M., Sweeney Daniel C.
Принадлежит:

A fiber optic sensor and a related method of manufacture are provided. The fiber optic sensor includes an embedded optical fiber contained within a metal diaphragm assembly, where the terminal end of the optical fiber is positioned opposite a diaphragm. The method includes forming a metal-embedded optical fiber by ultrasonic additive manufacturing and securing the metal-embedded optical fiber to a housing having a diaphragm that is opposite of the terminal end of the optical fiber. The sensor can provide extremely accurate pressure measurement at high temperatures and in highly corrosive media. An optical fiber-based pressure sensing system is also provided. 1. A method of preparing a fiber optic sensor , the method comprising:forming an elongated slot within an exterior surface of a metallic body;positioning an optical fiber within the elongated slot in the metallic body;ultrasonically welding a metallic tape to the exterior surface of the metallic body to achieve a metal-embedded optical fiber; andsecuring the metal-embedded optical fiber within a sensor housing including a diaphragm, wherein the diaphragm is spaced apart from a terminal end of the optical fiber.2. The method of further including forming the metallic body by ultrasonically welding a first plurality of successive layers of metallic tape to each other.3. The method of further including ultrasonically welding a second plurality of successive layers of metallic tape over the optical fiber.4. The method of wherein the metallic tape is selected from a group consisting of aluminum alloy claim 1 , nickel alloy claim 1 , and stainless steel.5. The method of wherein the metallic tape is applied to the metallic body under pressure while undergoing vibrations at a frequency of at least 10 kHz.6. The method of wherein the metallic body extends in the lengthwise direction of the optical fiber and includes an end portion that is flush with the terminal end of the optical fiber.7. The method of wherein the ...

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Номер записи: 37
08-02-2018 дата публикации

Method Of Extended Thermodynamic Turbine Mapping Via Compressor Inlet Throttling

Номер: US20180038377A1
Автор: Grabowska David, Schwarz Jordan Bucklew
Принадлежит:

A method for extending thermodynamic turbine mapping of a turbocharger, the turbocharger including a turbine and a compressor, the method including the steps of providing a steady-state turbocharger gas test stand configured to flow continuous gas to the turbocharger, the test stand including a throttle device disposed upstream of an inlet of the compressor of the turbocharger, and varying an area of the inlet with the throttle device to change density of the continuously flowing gas at the inlet of the compressor and establish a choked-flow condition for extending the thermodynamic turbine mapping of the turbocharger. 1. A method for extending thermodynamic turbine mapping of a turbocharger , the turbocharger including a turbine and a compressor , said method comprising the steps of:providing a steady-state turbocharger gas test stand configured to flow continuous gas to the turbocharger, the test stand including a throttle device disposed upstream of an inlet of the compressor of the turbocharger; andvarying an area of the inlet with the throttle device to change a density of the continuously flowing gas at the inlet of the compressor and establishing a choked-flow condition for extending the thermodynamic turbine mapping of the turbocharger.2. A method as set forth in including the step of providing a compressor inlet run including a compressor inlet pipe and the throttle device disposed in or with the compressor inlet pipe.3. A method as set forth in including the step of providing the throttle device as a fixed orifice in or with the compressor inlet pipe.4. A method as set forth in including the step of providing the throttle device as a plurality of interchangeable orifices of different sizes and interchanging the orifices in or with the compressor inlet pipe.5. A method as set forth in including the step of providing the throttle device as a plurality of interchangeable plates for the plurality of orifices and interchanging the plates in or with the ...

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Номер записи: 38
25-02-2021 дата публикации

Device for Checking the Function of an Aortic Valve

Номер: US20210052388A1
Автор: CARRERO GOMEZ Francisco Javier
Принадлежит:

The invention relates to a device for testing the functioning of an aortic valve by placing the device on the free end of a cylindrical tubular prosthesis inserted into the aorta, said tubular prosthesis being connected, with its other end, to the aortic wall in the region of the aortic valve. According to the invention, the device consists of a multi-part housing provided with at least one through-flow channel for a control liquid, the housing being provided, on its lower side facing the free end of the tubular prosthesis, with a peripheral sealing device that can be placed around the edge of the tubular prosthesis, and at least one pressure-measuring sensor and at least one optical sensor element for video recording being arranged on the lower side. 1. A device for checking the function of aortic valve by mounting the device on the free end of a cylindrical tubular prosthesis inserted into the aorta , the other end of which is connected to the aortic wall in the region of the aortic valve ,characterized in that{'b': 1', '4', '1', '8', '10', '7', '10', '13', '12', '8, 'the device consists of a multipart housing () provided with at least one flow channel () for inspection fluid, wherein the housing () is provided on its underside () facing the free end of the tubular prosthesis () with a peripheral sealing device () that can be mounted on the edge of the tubular prosthesis (), and wherein at least one pressure measuring sensor () and at least one optical sensor element () are provided on the underside () for recording video.'}2. The device according to claim 1 ,characterized in that{'b': 4', '5', '9', '1', '10', '1', '6', '1', '7, 'the flow channel () has an inlet opening () arranged in the top side () of the housing () facing away from the free end of the tubular prosthesis () and branches within the housing () to a ring channel that terminates in an annular outlet opening () in the underside of the housing () within the peripheral sealing device ().'}3. The device ...

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Номер записи: 39
15-05-2014 дата публикации

SYSTEMS AND METHODS FOR HOLDING TARGET TURBOMACHINE COMPRESSOR PRESSURE RATIO CONSTANT WHILE VARYING SHAFT SPEED

Номер: US20140130584A1
Автор: Allen Justin Aaron, Fuller Jason Dean, Rittenhouse Brian Allen, Waugh Daniel Richard
Принадлежит: GENERAL ELECTRIC COMPANY

Embodiments of the disclosure relate to systems and methods for holding target turbomachine compressor pressure ratio constant while varying the shaft speed. In order to characterize a load compressor and validate the compressor design, the speed of the load compressor can be changed while controlling the compressor operating line and holding the inlet guide vanes at a constant angle. Discharge control valves can be dynamically adjusted to maintain the pressure ratio equal to the operating line over a range of speeds. 1. A method for testing a load compressor , the method comprising:coupling a gas turbine to the load compressor via an axial shaft, wherein the gas turbine comprises a first compressor, a combustor, and a turbine, and wherein the axial shaft is operable to be rotated over a wide range of speeds;holding inlet guide vanes, coupled to the load compressor, at a set angle;varying speed of the axial shaft over a test speed range; andcontrolling pressure ratio of the load compressor to an operating line over the test speed range.2. The method of claim 1 , further comprising:determining a pressure ratio target;sensing an inlet pressure and an outlet pressure of the test compressor; andadjusting the outlet pressure to control the pressure ratio to the pressure ratio target.3. The method of claim 2 , wherein the operation of adjusting the outlet pressure comprises:dynamically adjusting a discharge control valve.4. (canceled)5. The method of claim 1 , wherein the gas turbine is operable to rotate the axial shaft over the test speed range.6. The method of claim 1 , further comprising:changing the set angle of the inlet guide vanes to a new set angle;varying the speed of the axial shaft over the test speed range at the new set angle; andcontrolling the pressure ratio to a new operating line over the speed range at the new set angle.7. A system for testing a load compressor claim 1 , comprising:a gas turbine coupled to an axial shaft, wherein the gas turbine ...

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Номер записи: 40
15-05-2014 дата публикации

PRESSURE-MEASURING PLUG FOR A COMBUSTION ENGINE

Номер: US20140130585A1
Автор: Borgers Marc, Toneman Huub, Zwollo Cris Ruiz
Принадлежит:

The invention relates to a pressure-measuring plug for a combustion engine comprising a plug body with a body tip section facing in use the combustion chamber and comprising a passage, a ring-shaped sensing structure comprising an outer section, an inner section and an annular diaphragm, the plug body being attached to the outer section, a circular membrane comprising an outer part coupled to the outer section and an inner part coupled to the inner section, the membrane provides a sealing protecting the annular diaphragm against the harsh environment in a combustion chamber; and, a plug chamber formed by the circular membrane and the body tip section wherein the passage of the body tip section provides an open connection between the plug chamber and the combustion chamber. The passage is part of a channel structure which functions as a soot filter. 1. A pressure-measuring plug for a combustion engine comprising:a plug body comprising an external thread section for mounting the plug body into a cylinder head of the combustion engine and a body tip section facing in use the combustion chamber and comprising a passage;a ring-shaped sensing structure comprising an outer section, an inner section and an annular diaphragm, the plug body being attached to the outer section, wherein the ring-shaped sensing structure allows the inner section to move relatively to the outer section along a cylinder axis of the ring-shaped sensing structure by deformation of the diaphragm,a circular membrane comprising an outer part coupled to the outer section and an inner part coupled to the inner section, the membrane provides a sealing protecting the annular diaphragm against the harsh environment in a combustion chamber; and,a plug chamber formed by the circular membrane and the body tip section wherein the passage of the body tip section provides an open connection between the plug chamber and the combustion chamber, the pressure-measuring plug further comprising a channel structure ...

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Номер записи: 41
15-05-2014 дата публикации

Pressure-measuring plug for a combustion engine

Номер: US20140130586A1
Автор: Cris Ruis Zwollo, Marc Borgers, Serge Groenhuijzen
Принадлежит: Sensata Technologies Inc

Disclosed is a pressure-measuring plug for a combustion engine. The pressure-measuring plug comprises a plug body and a ring-shaped sensing structure. The plug body comprises an external thread for mounting the plug body into a cylinder head of the combustion engine. The ring-shaped sensing structure comprises an outer section and an inner core. A proximal end of the plug body is attached to the outer section. The inner core comprises a through hole for receiving a rod-shaped element. The ring-shaped sensing structure allows the inner core to move relatively to the outer section along a cylinder axis of the ring-shaped sensing structure. The inner core further comprises an internal thread for mounting in the through hole a rod-shaped element with an external thread.

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Номер записи: 42
01-03-2018 дата публикации

SYSTEMS AND METHODS FOR NON-INVASIVE MEASUREMENT OF CASSETTE PRESSURE

Номер: US20180055688A1
Автор: Ekvall Johan, Essex Paul J., Todd Kirk
Принадлежит:

A method and system provide a surgical system including a cassette, a console and an interferometric pressure sensing system coupled with the console. The cassette is for exchanging material with a patient and includes a wall and a reflector. The wall undergoes a deflection in response to a nonambient internal cassette pressure. The console is coupled with the cassette. The interferometric pressure sensing system is coupled with the console. The interferometric pressure sensing system includes a light source and a detector. The light source provides a first portion of light that is reflected off of the reflector and a second portion of light that bypasses the reflector. The first portion and the second portion of light are recombined to form an interference pattern. The deflection corresponds to a shift in the interference pattern detectable by the detector. 1. A surgical system comprising:a cassette for exchanging material with a patient, the cassette including a wall and a reflector, the wall configured to undergo a deflection in response to a nonambient internal cassette pressure;a console coupled with the cassette; andan interferometric pressure sensing system coupled with the console, the interferometric pressure sensing system including a light source and a detector, the light source providing a first portion of light that is reflected off of the reflector and a second portion of light bypassing the reflector, the first portion and the second portion recombining to form an interference pattern, the deflection corresponding to a shift in the interference pattern detectable by the detector.2. The surgical system of wherein the interference pattern results from a difference in the physical paths of the first portion of the light and the second portion of the light.3. The surgical system of wherein the interferometric pressure sensing system includes a Michelson interferometer.4. The surgical system of wherein the Michelson interferometer includes a beam splitter ...

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Номер записи: 43
05-03-2015 дата публикации

STORAGE MEDIUM, MATERIAL EVALUATING APPARATUS, AND MATERIAL EVALUATING METHOD

Номер: US20150066392A1
Автор: ENDO Wataru, KAWAKAMI Satoshi, MATSUKI Yoshitaka, Nakazato Yosuke, TANBA Masato
Принадлежит: KYOCERA Document Solutions Inc.

A non-transitory computer-readable storage medium has stored therein a material evaluating program. The material evaluating program includes a first program code and a second program code. The first program code causes a computer to evaluate, in units of pages included in a material, an object impression degree for each of all objects included in each of the pages, the object impression degree indicating the strength of an impression made by the object included in the page. The second program code causes the computer to display an evaluation result about the object impression degrees obtained by executing the first program code. 1. A non-transitory computer-readable storage medium that has stored therein a material evaluating program to be executed by a computer , the material evaluating program comprising:a first program code that causes the computer to evaluate, in units of pages included in a material, an object impression degree for each of all objects included in each of the pages, the object impression degree indicating a strength of an impression made by the object included in the page; anda second program code that causes the computer to display an evaluation result obtained by executing the first program code.2. A non-transitory computer-readable storage medium according to claim 1 , whereinthe first program code causes the computer to evaluate each of the object impression degrees based on at least one of the following: a type of the object; a position of the object in the page; a size of the object; color differences among all the objects; a color difference between the object and a background of the page; a text size of a character string when the type of the object is a character string; and a quantity of characters in a character string when the type of the object is a character string.3. A non-transitory computer-readable storage medium according to claim 2 , whereinthe first program code causes the computer to arrange the object impression degree to ...

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Номер записи: 44
05-06-2014 дата публикации

METHOD OF INTEGRATING A TEMPERATURE SENSING ELEMENT

Номер: US20140150540A1
Автор: Gennissen Paulus Thomas Johannes, Jellema Jorke, Lenferink Joris Robert Jan
Принадлежит:

A multi-function sensor includes a body that includes a sensing circuit disposed on a substrate, the sensing circuit including a pressure sensor and a temperature sensor, the temperature sensor being disposed on a flexible portion of the substrate. A method of fabrication and additional embodiments are disclosed. 1. A multi-function sensor comprising:a body comprising a sensing circuit disposed on a substrate, the sensing circuit comprising a pressure sensor and a temperature sensor, the temperature sensor being disposed on a flexible portion of the substrate.2. The multi-function sensor as in claim 1 , wherein the body comprises an elongated sleeve configured for retention of the temperature sensor.3. The multi-function sensor as in claim 2 , wherein the sleeve comprises at least one guide for retention of a temperature arm comprising the temperature sensor.4. The multi-function sensor as in claim 1 , wherein the temperature sensor comprises one of a surface mount device (SMD) thermistor and a thermocouple.5. The multi-function sensor as in claim 1 , comprising an internal volume that is exposed to a sampling environment.6. The multi-function sensor as in claim 1 , wherein the pressure sensor is exposed to a sampling environment.7. The multi-function sensor as in claim 1 , wherein the pressure sensor is disposed on a flexible portion of the substrate.8. The multi-function sensor as in claim 1 , wherein the pressure sensor is configured to sense pressure conditions and the temperature sensor is configured to sense temperature conditions in one of an internal combustion engine and a gas turbine.9. The multi-function sensor as in claim 1 , further comprising at least one of a lid and a protective cap disposed over the body and sensing circuit.10. The multi-function sensor as in claim 1 , wherein the pressure sensor is disposed on a carrier.11. The multi-function sensor as in claim 10 , wherein the carrier comprises a ceramic material or a polyimide based material.12. ...

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Номер записи: 45
17-03-2016 дата публикации

PEN-TYPE PRESSURE INDICATOR FOR AIR COMPRESSOR

Номер: US20160076534A1
Автор: CHOU Wen-San
Принадлежит:

A pen-type pressure indicator, which can be detachably connected to an air compressor for measuring the pressure of compressed air produced in the air compressor, includes a transparent tube and a slider. The slider can be moved along a first bore and a second bore of the transparent tube. The motion of the slider in the transparent tube is similar to the motion of a piston in a cylinder. The transparent tube is provided with a tapered annular surface, between the first bore and the second bore. In addition to measuring the pressure of the compressed air delivered to an object, when the pressure of the compressed air exceeds a predetermined pressure, excessive air can be released into the environment, without requiring the air compressor to be installed with a safety valve, so that the object can be protected from damages due to overpressure. 1. A pressure indicator for an air compressor , comprising:a transparent tube including a first segment and a second segment, the first segment defining therein a first bore, the second segment defining therein a second bore, the first bore of the first segment having a diameter greater than the second bore of the second segment, the first segment being integrally formed with the second segment such that a tapered annular surface is formed between an inner surface of the first segment, which defines the first bore, and an inner surface of the second segment, which defines the second bore, wherein the first segment has an open end opposite to the second segment, the second segment has an end wall provided with a connector defining therethrough an air channel and being used for connection to one outlet of the air compressor, and the second segment is provided with a pressure-indicating scale at its outer surface;a slider mounted in the transparent tube for being pushed by compressed air from the outlet of the air compressor to move towards the open end of the first segment of the tube, the slider being shaped as a generally ...

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Номер записи: 46
17-03-2016 дата публикации

PRESSURE SENSOR

Номер: US20160076971A1
Автор: Harada Hiroshi, HIROKAWA Toshiki
Принадлежит: NGK SPARK PLUG CO., LTD.

A pressure sensor including a rod-shaped member, a tubular housing, a variable member and a pressure measuring element. The variable member is entirely disposed within the housing, is connected to the housing and the rod-shaped member, and deforms when the rod-shaped member is displaced relative to the housing along an axial direction. The variable member includes a first portion connected to the rod-shaped member, a second portion connected to the housing, and a bent portion which connects the first portion and the second portion to each other and has a bent shape. A portion of the second portion is a pressure receiving portion which displaces the rod-shaped member in the axial direction when receiving a pressure. The pressure receiving portion of the second portion has a substantially uniform thickness, and the thickness of the pressure receiving portion of the second portion is larger than that of the first portion. 1. A pressure sensor comprising:a rod-shaped member extending along an axial direction;a tubular housing within which the rod-shaped member is disposed in a state where a front end of the rod-shaped member projects therefrom;a variable member disposed entirely within the housing, connected to the housing and the rod-shaped member, and configured to deform when the rod-shaped member is displaced relative to the housing along the axial direction; andan element, disposed at a rear side with respect to the variable member and within the housing, for measuring a pressure around the front end of the rod-shaped member on the basis of the displacement, whereinthe variable member includes a first portion connected to the rod-shaped member, a second portion connected to the housing, and a bent portion which connects the first portion and the second portion to each other and has a bent shape,at least a portion of the second portion is a pressure receiving portion which displaces the rod-shaped member in the axial direction when receiving the pressure,the ...

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Номер записи: 47
17-03-2016 дата публикации

Automated Prognostics Systems and Methods

Номер: US20160076976A1
Автор: Patrick Romano, Reimann Johan Michael, Vittal Sameer
Принадлежит:

An automated prognostics system includes a sensor system configured to obtain measurement data by monitoring one or more parameters at one or more locations on each of one or more movable components of an object when the object is subjected to a first mode of operation. The system also includes a computing device having an input interface and a processor. The input interface receives input information such as spatial coordinates information associated with the one or more locations, the measurement data obtained by the sensor system, operational data associated with the first mode of operation, and structural data associated with the object. The processor processes the input information and generates a prognostics report on at least a first component of the one or more movable components, the prognostics report including at least one of a failure prognostic or a likelihood-of-failure prognostic of the first component. 1. A prognostics method comprising:subjecting an object comprising one or more movable components, to a first mode of operation;using a sensor system to obtain measurement data by monitoring one or more parameters at a plurality of locations on each of the one or more movable components when the object is subjected to the first mode of operation;providing to a computing device, input information comprising spatial coordinates information associated with the plurality of locations, the measurement data obtained by the sensor system, operational data associated with the first mode of operation, and structural data associated with the object; andprocessing the input information in the computing device to generate a first prognostics report on at least a first component of the one or more movable components, the first prognostics report comprising at least one of a failure prognostic or a likelihood-of-failure prognostic, of the first component.2. The method of claim 1 , further comprising:automatically generate in the computing device, a computerized ...

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Номер записи: 48
15-03-2018 дата публикации

PRESSURE GAUGE

Номер: US20180073947A1
Автор: KONNO Hidetoshi, OKADA Nobutaka, OONUMA Manabu
Принадлежит:

A Bourdon tube pressure gauge includes: a Bourdon tube; a rotary piece rotatably attached to a first shaft arranged near a tip of the Bourdon tube; a pointer including a second shaft arranged on a side facing an outer periphery of the fan-shaped portion of the rotary piece; a first permanent magnet provided on an outer peripheral surface side of a fan-shaped portion of the rotary piece; a second permanent magnet provided at the second shaft. An outer peripheral surface of the first permanent magnet and an outer peripheral surface of the second permanent magnet each has N pole and S pole alternately magnetized at equal pitches. A magnetic member configured to relax force by which the second permanent magnet is attracted to the first permanent magnet is provided across the second permanent magnet from the first permanent magnet. 1. A Bourdon tube pressure gauge comprising:a Bourdon tube configured to be elastically strained by a measurement pressure introduced into inside;a rotary piece rotatably attached to a first shaft arranged near a tip of the Bourdon tube, the rotary piece including one end provided with a slit-like cam hole extending in a direction away from the first shaft and other end provided with a fan-shaped portion centering the first shaft;a rod including one end provided with a first connecting unit configured to be rotatably connected to a connecting portion provided at the tip of the Bourdon tube and other end provided with a second connecting unit configured to be connected slidably inside the cam hole;a pointer including a second shaft arranged on a side facing an outer periphery of the fan-shaped portion of the rotary piece;a first permanent magnet provided on an outer peripheral surface side of the fan-shaped portion of the rotary piece;a second permanent magnet provided at the second shaft,an outer peripheral surface of the first permanent magnet and an outer peripheral surface of the second permanent magnet each having N pole and S pole ...

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Номер записи: 49
23-03-2017 дата публикации

Method and device for diagnosing performance of an internal combustion engine

Номер: US20170082054A1
Автор: Mikael Nordin, Ola Stenlåås
Принадлежит: SCANIA CV AB

A method and a device for diagnosis of performance during a combustion process in a combustion chamber in at least one cylinder in a combustion engine. The method comprises the steps: during a working cycle with combustion, detecting movements in a cylinder head belonging to said cylinder or in parts adjacent thereto in the engine, generated at pressure changes arising at the combustion in the combustion chamber, based upon the detected movements, calculating said pressure changes in the combustion chamber, and based upon the calculated pressure changes, determining whether the actual performance differs from the expected performance.

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Номер записи: 50
30-03-2017 дата публикации

WATERPROOF BAROMETRIC SENSOR IN AN ELECTRONIC DEVICE

Номер: US20170089795A1
Автор: Bushnell Tyler S., Cardinali Steven P., Ehman Rex T., Lukens William C., Pelletier David M., Perkins Ryan C.
Принадлежит:

An electronic device having a pressure detection system is disclosed. The electronic device may include one or more elements designed to detect pressure exerted on the electronic device. In some embodiments, the electronic device includes a membrane and a detection mechanism, both of which bend in response to a pressure change at the membrane. The membrane may be electrically coupled with a circuit that detects the bending of the membrane and correlates the bending with a pressure change at the membrane. A can may be hermetically sealed with the membrane and surround the circuit to shield the circuit from liquid ingress. In some embodiments, a light transmitter and light receiver are used to detect the bending of the membrane. The light may reflect from the membrane at different angles, based upon a shape of the membrane, and contact the receiving element at different locations, corresponding to pressure change. 1. A sensor for detecting pressure exerted on an electronic device , the sensor comprising:a membrane that bends in response to the pressure;a detection mechanism secured with the membrane; anda circuit electrically coupled with the detection mechanism, wherein the detection mechanism bends in conjunction with the membrane and provides an electrical output to the circuit to determine the pressure.2. The sensor of claim 1 , wherein the circuit comprises an air pocket defining a reference pressure claim 1 , and wherein the circuit compares the pressure with the reference pressure to determine a relative pressure.3. The sensor of claim 2 , further comprising:a circuit board that receives the circuit; anda can comprising an opening, wherein the can is secured with the membrane at the opening, and wherein the can is secured with the circuit.4. The sensor of claim 3 , wherein in response to a pressure increase claim 3 , the membrane and the detection mechanism bend away from the opening claim 3 , and wherein in response to a pressure decrease the membrane and the ...

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Номер записи: 51
05-05-2022 дата публикации

MOTOR VEHICLE WIRELESS DATA COMMUNICATION SYSTEM

Номер: US20220139125A1
Автор: Angara Lisa Marie, King Daniel Teshin, Mallela Srinivas Murthy, Nimz Jack David
Принадлежит:

A system for use with a vehicle includes at least one device installed or present onboard the vehicle and configured to sense or determine at least one condition or characteristic of the vehicle or its driver. The at least one device communicates the condition or characteristic with a remote site or web service using a wireless communication device. The remote site or web service correlates or compares the condition or characteristic of the vehicle or its driver with road conditions, capacities, facilities, and/or established safety data associated with the upcoming roadway, and determines whether the vehicle should stop or enter a facility due to an incompatibility or conflict between the condition or characteristic and the road conditions, capacities, facilities, and/or established safety data. The remote site or web service then communicates the determination of whether the vehicle should stop or enter the facility to the device on the vehicle.

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Номер записи: 52
26-06-2014 дата публикации

DEVICE FOR DETECTING A PRESSURE, IN PARTICULAR A COMBUSTION CHAMBER PRESSURE OF AN INTERNAL COMBUSTION ENGINE

Номер: US20140174164A1
Автор: Gorzolka Martin, Scholzen Holger, WOLFF Janpeter
Принадлежит:

A device for detecting a pressure, in particular in a combustion chamber of an internal combustion engine, has a housing and an adapter element secured in the housing for accommodating a sensor module. The sensor module includes at least one sensor element and one support element. The sensor element makes electrical contact with connecting lines which extend in the axial direction of the sensor module. The support element has a section on which support surfaces are formed for the connecting lines. 110-. (canceled)11. A device for detecting a pressure in a combustion chamber of an internal combustion engine , comprising:at least one housing,a sensor module situated in the housing, the sensor module including at least one sensor element and one support element, and the sensor element making electrical contact with connecting lines, which essentially extend in an axial direction of the sensor module, andan adapter element secured in the housing,wherein the support element has a section on which support surfaces are formed for the connecting lines.12. The device according to claim 11 , wherein the section perpendicular to a longitudinal extent of the sensor module has a cross section which is larger than a cross section of the sensor element claim 11 , and the support surfaces are situated on an outer surface of the section.13. The device according to claim 12 , wherein the outer surface is formed from a cylindrical peripheral surface of the section claim 12 , and the support surfaces are formed on the cylindrical peripheral surface.14. The device according to claim 12 , wherein the larger cross section of the section has a circular front surface on a fixing element side with which the support element supports its elf.15. The device according to claim 11 , wherein the section is formed on the support element on a fixing element side in the axial direction and spaced from the sensor element claim 11 , another section is provided on the support element on a sensor element ...

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Номер записи: 53
07-04-2016 дата публикации

DETERMINING CYLINDER HEALTH IN A RECIPROCATING PISTON ENGINE

Номер: US20160097694A1
Автор: Krisher Kyle M., Lysenko George P., Price Kevin A.
Принадлежит:

Computer-implemented methods, computer program products, and computer systems are described for determining cylinder health characteristic in a reciprocating piston engine of the type including a piston-cylinder assembly and a crankshaft. The piston-cylinder assembly includes a cylinder and a piston configured to translate within the cylinder as the crankshaft rotates. In one embodiment, the computer-implemented method includes rotating the crankshaft in a first direction, while generating a first data set comprising a first plurality of piston position measurements and corresponding pressure indicator measurements. The crankshaft is further rotated in a second opposing direction, while a second data set is generated comprising a second plurality of piston position measurements and corresponding pressure indicator measurements. A symmetric aspect between the first and second data sets is then identified and utilized to determining a cylinder health characteristic for the piston-cylinder assembly. 1. A computer-implemented method of determining a leakage characteristic associated with one or more cylinders in which one or more pistons are configured to move cyclical motion , the computer-implemented method comprising:progressing a piston in a first direction, along a first piston stroke included in the cyclical motion, toward an expected top dead center position of the piston;determining, by one or more computing devices, as part of a first data set, a plurality of first positions of the piston as the piston is progressed in the first direction along the first piston stroke;determining, by the one or more computing devices, as part of the first data set, a plurality of first pressure indicators corresponding to the plurality of first positions;progressing the piston in a second direction, along a second piston stroke included in the cyclical motion, toward the expected top dead center position of the piston;determining, by one or more computing devices, as part of a ...

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Номер записи: 54
09-04-2015 дата публикации

METHOD FOR COMPENSATING A SIGNAL FROM A PRESSURE MEASUREMENT DEVICE WITHIN AN INTERNAL COMBUSTION ENGINE

Номер: US20150100265A1
Автор: DUCHEMIN Christophe
Принадлежит:

A method for processing a signal (S) from a pressure measurement device (D) in a combustion chamber of a cylinder of an internal combustion engine includes: detecting the start of a plateau phase (S); calculating a pair of values of a slope (ax, . . . , ax) and an intercept (bx, . . . , bx) of a straight line approximating the values of the signal acquired by the processing unit during the plateau phase; determining a voltage compensation value of the signal on the basis of each pair of calculated slope and intercept values; compensating the output signal (S) of the pressure sensor on the basis of the determined voltage compensation value; detecting the start of a voltage peak phase (P2) following the plateau phase (S); and, during the detected peak phase, compensating the signal (S) on the basis of the last pair of slope (ax) and intercept (bx) values calculated during the plateau phase. 221. The method as claimed in claim 1 , characterized in that the calculation step (E) is carried out through linear regression.34800. The method as claimed in claim 1 , characterized in that the step (E) of compensating the output signal (S) of the sensor () during the detected peak phase (P1 claim 1 , P2 claim 1 , P3) is carried out for each acquisition time (X claim 1 , . . . claim 1 , X) of said signal (S).4. The method as claimed in claim 1 , characterized in that the values of the signal (S) are acquired every 1/804 Hz=1.24 ms.54800. The method as claimed in claim 2 , characterized in that the step (E) of compensating the output signal (S) of the sensor () during the detected peak phase (P1 claim 2 , P2 claim 2 , P3) is carried out for each acquisition time (X claim 2 , . . . claim 2 , X) of said signal (S).6. The method as claimed in claim 2 , characterized in that the values of the signal (S) are acquired every 1/804 Hz=1.24 ms.7. The method as claimed in claim 3 , characterized in that the values of the signal (S) are acquired every 1/804 Hz=1.24 ms. The present invention ...

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Номер записи: 55
01-04-2021 дата публикации

IN-CYLINDER PRESSURE SENSOR SYSTEM AND PRESSURE SENSOR ADAPTOR

Номер: US20210096041A1
Автор: Bushman Justin D., Hemmingsen Bradley D.
Принадлежит: CATERPILLAR INC.

An in-cylinder pressure sensor system and a pressure sensor adaptor that allows for the inclusion of a pressure sensor to monitor the pressure of an engine cylinder is provided. The pressure sensor adaptor includes a first end, a second end, a threaded section, a cylindrical midsection, and an annular section; and a pressure sensor channel that comprises an opening in the first end and an opening in a second end and spans from the first end to the second end through the threaded section, the cylindrical midsection, and the annular section. The pressure sensor may be housed in the pressure sensor channel of the pressure sensor adaptor. 1. An internal combustion engine comprising:a combustion chamber defined by the space between a cylinder in an engine block, a cylinder head, and a piston;a cylinder head channel in the cylinder head;a non-linear access channel that connects the cylinder head channel to the combustion chamber; a first end, a second end, a threaded section, a cylindrical midsection, and a annular section; and', 'a pressure sensor channel that comprises an opening in the first end and an opening in a second end and spans from the first end to the second end through the threaded section, the cylindrical midsection, and the annular section; and, 'a pressure sensor adaptor housed in the cylinder head channel, the pressure sensor adaptor comprisinga pressure sensor housed in the pressure sensor channel of the pressure sensor adaptor.2. The internal combustion engine of claim 1 , wherein the internal combustion engine is a spark ignition engine or a compression ignition engine.3. The internal combustion engine of claim 1 , wherein the pressure sensor is selected from the group consisting of piezoelectric type pressure sensors claim 1 , strain gauge type pressure sensors claim 1 , electromagnetic type pressure sensors claim 1 , and optical type pressure sensors.4. The internal combustion engine of claim 1 , wherein the pressure sensor channel comprises a ...

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Номер записи: 56
16-04-2015 дата публикации

VISCOSITY MEASURING APPARATUS

Номер: US20150101400A1
Автор: Kuroki Rentaro, TOMITA Sho
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A viscosity measuring apparatus is mounted on a vehicle provided with an engine, a cylinder pressure sensor configured to detect cylinder pressure which is inner pressure of a cylinder of the engine, a fuel injection valve configured to supply fuel to the engine, and a temperature sensor configured to detect temperature of a coolant of the engine. The viscosity measuring apparatus is provided with: an estimating device configured to calculate a cooling loss from a heating value of the cylinder based on the cylinder pressure detected by the cylinder pressure sensor and an input heating value of the cylinder, and to estimate viscosity of the coolant on the basis of the calculated cooling loss. 1. A viscosity measuring apparatus mounted on a vehicle comprising an engine , a cylinder pressure sensor configured to detect cylinder pressure which is inner pressure of a cylinder of the engine , a fuel injection valve configured to supply fuel to the engine , and a temperature sensor configured to detect temperature of a coolant of the engine , said viscosity measuring apparatus comprising:an estimating device configured to calculate a cooling loss from a heating value of the cylinder based on the cylinder pressure detected by the cylinder pressure sensor and an input heating value of the cylinder, and to estimate viscosity of the coolant on the basis of the calculated cooling loss.2. The viscosity measuring apparatus according to claim 1 , further comprising a determining device configured to determine that the viscosity is abnormal if the estimated viscosity deviates from a designed value of the coolant by a predetermined value or more.3. The viscosity measuring apparatus according to claim 2 , wherein the estimation of the viscosity by said estimating device and the determination of the abnormal viscosity by said determining device are performed if each of a time differential value of number of revolutions of the engine claim 2 , a time differential value of an injection ...

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Номер записи: 57
28-03-2019 дата публикации

RAPID SAMPLE IGNITION TEST SYSTEM

Номер: US20190093622A1
Автор: Boettcher Philipp A., DAMAZO Jason, JR. Thomas D., Kwon Eddie, MITCHUM, SMITH Carson A.
Принадлежит:

An ignition testing system including a test article testing chamber, and at least one gas mixture verification chamber being communicably coupled to the test article testing chamber and being configured to verify at least a content of a gas mixture content provided to the test article testing chamber. 1. An ignition testing system comprising:a test article testing chamber; andat least one gas mixture verification chamber being communicably coupled to the test article testing chamber and being configured to verify at least a content of a gas mixture content provided to the test article testing chamber.2. The ignition testing system of claim 1 , wherein the at least one gas mixture verification chamber comprises:a chamber frame forming a sealed interior, where the chamber frame includes at least one aperture; anda transparent member configured to seal the at least one aperture.3. The ignition testing system of claim 1 , further comprising a voltage arc source disposed within a sealed interior of the at least one gas mixture verification chamber.4. The ignition testing system of claim 1 , further comprising a pressure sensor claim 1 , where the at least one gas mixture verification chamber includes a chamber frame having at least one sensor port in communication with a sealed interior of the chamber frame claim 1 , the pressure sensor being coupled to the at least one sensor port.5. The ignition testing system of claim 1 , further comprising a thermocouple claim 1 , where the at least one gas mixture verification chamber includes a chamber frame having at least one sensor port in communication with a sealed interior of the chamber frame claim 1 , the thermocouple being coupled to the at least one sensor port.6. The ignition testing system of claim 1 , further comprising:a gas mixture inlet in communication with a sealed interior of the at least one gas mixture verification chamber;a gas mixture outlet in communication with the sealed interior of the at least one gas ...

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Номер записи: 58
13-04-2017 дата публикации

METHOD AND FUNCTIONAL MONITORING APPARATUS FOR FUNCTIONAL MONITORING OF AN APPARATUS FOR VARIABLE SETTING OF A CYLINDER COMPRESSION IN A RECIPROCATING-PISTON INTERNAL COMBUSTION ENGINE

Номер: US20170102291A1
Автор: Gladel Pascal, Jessen Holger, Kesch Bernd
Принадлежит:

A method for functional monitoring of an apparatus for variable setting of a cylinder compression in a reciprocating-piston internal combustion engine is described, including ascertaining a value of an engine parameter which is indicative of an engine position of the internal combustion engine at a defined cylinder compression; comparing the ascertained value with a further value of the engine parameter; and determining, depending on a result of the comparison, whether the apparatus for variable setting of the cylinder compression is functioning correctly. 1. A method for functional monitoring of an apparatus for variable setting of a cylinder compression in a reciprocating-piston internal combustion engine , comprising:ascertaining a value of an engine parameter which is indicative of an engine position of the internal combustion engine at a defined cylinder compression;comparing the ascertained value with a further value of the engine parameter; anddetermining, depending on a result of the comparison, whether the apparatus for variable setting of the cylinder compression is functioning correctly.2. The method as recited in claim 1 , wherein the further value is a reference value that is to be expected claim 1 , in a context of correct functioning of the apparatus claim 1 , for the engine parameter in the context of the cylinder compression claim 1 , a determination being made that the apparatus is functioning correctly if a difference between the ascertained value and the reference value is less than a predetermined threshold value.3. The method as recited in claim 1 , wherein the further value is ascertained in the context of a further claim 1 , defined claim 1 , different cylinder compression claim 1 , a determination being made that the apparatus is functioning correctly if a difference between the ascertained value and the further value is greater than a predetermined threshold value.4. The method as recited in claim 1 , wherein the value is ascertained in an ...

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Номер записи: 59
21-04-2016 дата публикации

SMARTPHONE OPERATED AIR PRESSURE METER AND SYSTEM

Номер: US20160109318A1
Автор: Madden Scott
Принадлежит:

A smartphone-operated air pressure meter and system includes an air pressure meter having a pair of input channels that are each connected to a pressure chamber and pressure sensor. A control unit is included with the pressure meter for receiving air pressure data and for transmitting the same. The system also includes an airflow balancing application that generates one or more application icons, and calculates airflow information. The airflow information can include the received pressure data alone, or pressure data that has been applied to a mathematical algorithm, along with environmental data. 1. An air pressure meter and system , comprising: generate an airflow balancing icon on the display screen, and', 'calculate and display airflow information on the display screen; and, 'an airflow balancing application that includes machine readable instructions for execution on an external processor enabled device having a memory, internet connectivity, and display screen, said application functioning to'} a main body having an external surface that defines an internal cavity,', 'first and second pressure chambers that are disposed within the internal cavity of the main body,', 'first and second input channels that are in communication with the first and second pressure chambers, respectively, along a first end,', 'said first and second input channels further including a second end that extends outward from the main body,', 'first and second pressure sensors that are disposed within the first and second pressure chambers, respectively, and', 'a control unit that functions to communicate with the first and second pressure sensors, and to transmit airflow data to the airflow balancing application., 'an air pressure meter that includes'}2. The system of claim 1 , wherein the first and second input channels include elongated tubular members having a connector disposed along the second end that functions to engage an external air supply tube.3. The system of claim 2 , further ...

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Номер записи: 60
19-04-2018 дата публикации

SENSOR INTERFACE FOR HOSTILE ENVIRONMENTS

Номер: US20180106695A1
Автор: Badets Franck, Chabchoub Emna
Принадлежит: Commissariat A L'Energie Atomique Et Aux Energies Alternatives

An interface circuit for a sensor including: a first injection-locked oscillator having: a first input coupled to a sensor, a free-running oscillation frequency of the first injection-locked oscillator being controlled by a signal from the sensor; and a second input coupled to receive a synchronization signal at a reference frequency, the first injection-locked oscillator being adapted to generate an output signal at said reference frequency, the output signal being phase shifted with respect to the synchronization signal as a function of the signal from the sensor. 1. An interface circuit for a sensor comprising: a first input coupled to a sensor, a free-running oscillation frequency of the first injection-locked oscillator being controlled by a signal from the sensor; and', 'a second input coupled to receive a synchronization signal at a reference frequency, the first injection-locked oscillator being adapted to generate an output signal at said reference frequency, the output signal being phase shifted with respect to the synchronization signal as a function of the signal from the sensor; and, 'a first injection-locked oscillator havingan output circuit, clocked by said synchronization signal or by a clock signal derived therefrom, and adapted to generate a digital output signal based on a phase difference between the output signal and the synchronization signal, or a further reference signal generated based on said synchronization signal.2. The interface circuit of claim 1 , wherein the output circuit is clocked by said clock signal having a frequency equal to a multiple of the frequency of the synchronization signal.3. The interface circuit of claim 1 , wherein the output circuit is adapted to generate the digital output signal based on a phase difference between the output signal and a further reference signal generated by a second injection-locked oscillator having:a first input for controlling a free-running oscillation frequency of the second injection- ...

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Номер записи: 61
30-04-2015 дата публикации

COMBUSTION PRESSURE SENSOR AND METHOD OF MANUFACTURING THE SAME

Номер: US20150114095A1
Автор: Hatta Tomonari, Nakamura Yoshihiro
Принадлежит: NGK SPARK PLUG CO., LTD.

A combustion pressure sensor having a tubular housing extending in an axial direction DX, a displacement member disposed within the housing, and a tubular connection member which elastically connects the displacement member to the housing. The combustion pressure sensor has a housing weld W that connects the housing and the connection member At least a circumferential portion of the housing weld is a bulge housing weld RW which bulges in a radial direction DR. 1. A combustion pressure sensor comprisinga tubular housing extending in an axial direction;a displacement member at least a portion of which is disposed within the housing and which is displaced in the axial direction with pressure received from a forward side in the axial direction; anda tubular connection member which elastically connects the displacement member to the housing,the combustion pressure sensor having a housing weld which is formed by energy-beam-welding the housing and the connection member annularly in a circumferential direction of the housing and the connection member while the housing and the connection member are separated from each other at least partially in the circumferential direction; which contains metal components derived from the housing and metal components derived from the connection member; and which includes, in a longitudinal section of the combustion pressure sensor, a wedged weld resulting from wedgewise melting of a portion of the housing,wherein at least a portion in the circumferential direction of the housing weld is a bulge housing weld which bulges, with respect to a first adjacent portion, in a direction directed from a second adjacent portion toward the first adjacent portion along a radial direction, wherethe first adjacent portion is a portion of the connection member adjacent to the housing weld, andthe second adjacent portion is a portion of the housing adjacent to the housing weld.2. A combustion pressure sensor according to claim 1 , wherein the housing weld ...

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Номер записи: 62
28-04-2016 дата публикации

Detection apparatus for at least one of temperature and pressure in a cylinder of an internal combustion engine

Номер: US20160115830A1
Автор: Dale Arden Stretch, David Yee, Douglas J. Nielsen, Evan Grimm, James Edward Mccarthy, Jr., John Albert Kovacich, John Trublowski, Karen Evelyn Bevan, Martin Pryor, Xubin Song
Принадлежит: Eaton Corp

An apparatus for measuring at least one of temperature and pressure within a cylinder of an internal combustion engine can include an engine valve and a sensor. The internal combustion engine can include a valvetrain having rocker arm assembly, a camshaft, a valve, and a hydraulic lash adjuster. The engine valve can have a valve head and a valve stem extending from the valve head in an axial direction. The valve head can have a valve face configured to be in pressure communication with an engine cylinder. The valve stem can have an outer surface with a cylindrical portion and a variably-shaped portion. The variably-shaped portion can define a target detectable by the sensor and the sensor can be installed adjacent to the target. Alternatively, the sensor can be positioned to detect a level of force at some point along the valvetrain.

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Номер записи: 63
30-04-2015 дата публикации

NON-REGRESSION METHOD OF A TOOL FOR DESIGNING A MONITORING SYSTEM OF AN AIRCRAFT ENGINE

Номер: US20150120214A1
Автор: Gouby Aurélie, Lacaille Jerome Henri Noel
Принадлежит: SNECMA

The invention relates to a system of non-regression tests of a designing tool including modules () used to build a monitoring device () of an aircraft engine (), said system of tests including: 111713. A method of non-regression tests of a tool for designing a monitoring device () of an aircraft engine () , said designing tool including modules () used to build the monitoring device , each module integrating algorithmic functions dedicated to specific tasks and being configured by a set of parameters , each module being adapted to be executed on an input signal to deliver an output signal , characterized in that said method includes the following steps of:{'b': 9', '13, 'i': 'e', 'sub': IN', {'sub2': '—'}, 'OUT', {'sub2': '—'}], 'automatically creating an experience base () by instrumenting behaviour tests upon executing the modules (), said experience base including reference input signals (Sref), sets of reference parameters (param_ref), reference output signals (Sref), and collections of results of reference executions relating to said modules,'}{'sub': OUT', {'sub2': '—'}], 'starting again said behaviour tests on said modules depending on the corresponding reference input signals and the corresponding sets of reference parameters thus generating test output signals (Stest) and collections of results of test executions, and'}comparing said test output signals with the corresponding reference output signals and said collections of results of test executions with said corresponding collections of results of reference executions in order to test the non-regression of the designing tool.2. The method according to claim 1 , characterized in that upon executing a module claim 1 , creating the experience base includes the following steps of:{'b': '13', 'sub': IN', {'sub2': '—'}, 'OUT', {'sub2': '—'}], 'creating collections of instances of reference modules (mod_ref) for the different modules (), each module being associated with a collection of instances of reference ...

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Номер записи: 64
27-04-2017 дата публикации

SYSTEMS AND METHODS FOR PRESSURE WAVE MODELING TO ESTIMATE IN-CYLINDER PRESSURE

Номер: US20170115181A1
Автор: ARAMANEKOPPA Sharath Sridhar, Blom Rogier Sebastiaan, Huber Johannes, Kopecek Herbert
Принадлежит:

A method for estimating pressures at a gas engine using a real-time model-based observer is implemented by a pressure estimation computing device. The method includes receiving a design schema describing an intake manifold and a plurality of components associated with the gas engine, segmenting the design schema into a plurality of segments defining a plurality of sections of the gas engine, defining a fluid dynamics model associated with each of the plurality of segments, defining a plurality of interconnected elements based on the plurality of fluid dynamics models, receiving at least one pressure measurement from at least one of a plurality of sensors associated with each of the sections of the gas engine, estimating a plurality of pressure values at each section of the gas engine, and controlling fuel injection to at least one gas cylinder based on the estimated plurality of pressure values. 1. A computer-implemented method for estimating pressures in a gas engine using a real-time model-based observer , said method implemented by a pressure estimation computing device including a processor and a memory device coupled to the processor , said method comprising:receiving a design schema describing an intake manifold and a plurality of components associated with the gas engine;segmenting the design schema into a plurality of segments defining a plurality of sections of the gas engine;defining a fluid dynamics model associated with each of the plurality of segments;defining a plurality of interconnected 2-port elements based on the plurality of fluid dynamics models, wherein the plurality of interconnected 2-port elements form a network along the gas engine, wherein the network includes points of intersection between interconnected 2-port elements with zero net flow and equal pressure;receiving at least one pressure measurement from at least one of a plurality of sensors associated with each of the sections of the gas engine;estimating a plurality of pressure values ...

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Номер записи: 65
05-05-2016 дата публикации

METHOD FOR PROCESSING A VOLTAGE SIGNAL RELATING TO THE PRESSURE PREVAILING IN A COMBUSTION CHAMBER OF A CYLINDER OF AN INTERNAL COMBUSTION ENGINE

Номер: US20160123841A1
Автор: DUCHEMIN Christophe, Panis Guerric
Принадлежит:

A method for processing a voltage signal relating to the pressure prevailing in a combustion chamber of a cylinder of an internal combustion engine, the signal, referred to as an “input signal”, having, in alternation, “plateau” phases and main peak phases. The method includes a step (E) of rectification of the input signal such that the gradient of the base signal is zero, a step (E) in which the peaks of the rectified signal of which the amplitude is greater than a predetermined voltage value are clipped so as to obtain an at least partially clipped signal referred to as a “clipped signal”, a step (E) of detection of a main peak when the amplitude of the input signal is greater than the amplitude of the clipped signal, and a step (E_, E_) of compensation of the input signal in the absence of such a detection. 112312345678. A method for processing a voltage signal relating to the pressure prevailing in a combustion chamber of a cylinder of an internal combustion engine , said signal , referred to as an “input signal” (S_in) , having , in alternation , “plateau” phases (SP , SP , SP) , during which the “base” signal (S_base) progresses on average in accordance with a linear function over time , and main peak phases (P , P , P , P , P , P , P , P) , during which the signal (S_in) is representative of the pressure peaks prevailing in the combustion chamber , said method comprising:{'b': '1', 'a step (E) of rectification of the input signal (S_in) such that the gradient of the base signal (S_base) is zero,'}{'b': '2', 'a step (E) in which the peaks of the rectified signal (S_in_base) of which the amplitude is greater than a predetermined voltage value are clipped so as to obtain an at least partially clipped signal referred to as a “clipped signal” (S_in_ecret),'}{'b': 4', '1', '4', '2', '1', '2', '3', '4', '5', '6', '7', '8, 'a step (E_, E_) of detection of a main peak (P, P, P, P, P, P, P, P) when the amplitude of the input signal (S_in) is greater than the amplitude ...

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Номер записи: 66
14-05-2015 дата публикации

COMBUSTION PRESSURE DETECTION DEVICE, AND INTERNAL COMBUSTION ENGINE EQUIPPED WITH COMBUSTION PRESSURE DETECTION DEVICE

Номер: US20150128687A1
Автор: Misaizu Tsuyoshi, Soga Yoshihiko, TAKAHASHI Kazuo, Yasuda Hiromichi
Принадлежит:

A combustion pressure detection device for detecting combustion pressure inside a combustion chamber of an internal combustion engine, the combustion pressure detection device being attachable to a communication hole communicating an inside of a cylinder head configuring the combustion chamber and an outside thereof, the combustion pressure detection device includes: a housing; and an piezoelectric element and the like that are located in the housing and detect the combustion pressure. The housing has an attachment structural part attachable to the communication hole, the attachment structural part has a third outer peripheral surface to which a first seal member is attachable, and a inclined surface to which a second seal member is attachable, and the inclined surface is arranged at a front end side in a direction to the combustion chamber relative to the third outer peripheral surface when the combustion pressure detection device is attached to the communication hole. 1. A combustion pressure detection device for detecting combustion pressure inside a combustion chamber of an internal combustion engine , the combustion pressure detection device being attachable to a communication hole communicating an inside of a cylinder head configuring the combustion chamber and an outside thereof , the combustion pressure detection device comprising:a housing; anda detector that is located in the housing and detects the combustion pressure, whereinthe housing has an attachment structural part attachable to the communication hole,the attachment structural part has a first attachment structural part to which a first seal member is attachable, and a second attachment structural part to which a second seal member is attachable, andat least any one of the first attachment structural part and the second attachment structural part is provided with a tapered part having a diameter increasing as approaching a rear end side that is an opposite side of a direction to the combustion ...

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Номер записи: 67
14-05-2015 дата публикации

METHOD FOR DETECTING A DEVIATION OF A COMPRESSION PRESSURE OF ONE CYLINDER FROM THAT OF ANOTHER CYLINDER OF AN INTERNAL COMBUSTION ENGINE

Номер: US20150128688A1
Автор: Bald Christian, Matteucci Andrea
Принадлежит:

In a method for detecting a deviation of a compression pressure of one cylinder from that of another cylinder of an internal combustion engine having at least two cylinders, the rotational speed of a crankshaft of the internal combustion engine is reduced from a starting rotational speed to a target rotational speed; the actual rotational speed is detected; a curve of a change of the actual rotational speed per angle unit of the crankshaft is determined as a curve of a rotational speed gradient; the curve of the rotational speed gradient is subjected to order analysis; and a deviation of the compression pressure of one cylinder from that of another cylinder is detected when an amplitude of a selected order lies above a permissible threshold value. 1. A method for detecting a deviation of a compression pressure of a first cylinder from a compression pressure of a second cylinder of an internal combustion engine , comprising:reducing a rotational speed of a crankshaft of the internal combustion engine from a starting rotational speed to a target rotational speed;detecting an actual rotational speed of the crankshaft;determining a curve of a change of the actual rotational speed per angle unit of the crankshaft as a curve of a rotational speed gradient; andperforming an order analysis on the curve of the rotational speed gradient, wherein a deviation of the compression pressure of the first cylinder from the compression pressure of the second cylinder is detected when an amplitude of a selected order lies above a permissible threshold value.2. The method as recited in claim 1 , wherein the selected order is ascertained as a function of the number of cylinders of the internal combustion engine.3. The method as recited in claim 2 , wherein the order is a fraction k/N of a base order claim 2 , which corresponds to an ignition frequency claim 2 , N being the number of cylinders of the internal combustion engine and k=1 claim 2 , . . . claim 2 , N−1.4. The method as recited ...

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Номер записи: 68
04-05-2017 дата публикации

CYLINDER INTERNAL PRESSURE SENSOR

Номер: US20170122830A1
Автор: NAKAYAMA Masao
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A cylinder internal pressure sensor includes: a housing; a diaphragm having flexibility and being joined to one end of the housing; a sensor element configured to change an output signal according to deformation of the diaphragm; and an opposed member housed inside the housing so as to face the diaphragm. The opposed member defines a housing room between the diaphragm and the opposed member, and includes: a cylindrical tube part being a layered structure with an inner tube and an outer tube; and a seal part provided inside the tube part. The sensor element is fixed to the seal part. The tube part is provided with a spring rate reducing portion that is provided between the diaphragm and a position where the inner tube and the outer tube are joined together. 1. A cylinder internal pressure sensor comprising:a housing;a diaphragm having flexibility, the diaphragm being joined to one end of the housing;a sensor element configured to change an output signal according to deformation of the diaphragm; and a cylindrical tube part being a layered structure with an inner tube and an outer tube; and', 'a seal part provided inside the tube part, and the sensor element being fixed to the seal part,', 'the tube part being provided with a spring rate reducing portion,', 'the spring rate reducing portion being provided between the diaphragm and a position that the inner tube and the outer tube are joined together., 'an opposed member housed inside the housing so as to face the diaphragm, the opposed member defining a housing room between the diaphragm and the opposed member, the opposed member including2. The cylinder internal pressure sensor according to claim 1 , whereinthe tube part includes a first region where the tube part has the seal part on the inside and a second region where the tube part does not have the seal part on the inside, andthe spring rate reducing portion is provided in the second region.3. The cylinder internal pressure sensor according to claim 1 , ...

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Номер записи: 69
25-08-2022 дата публикации

Dynamometer For Use With Rail Equipment, And Systems And Methods Of Using Same

Номер: US20220268651A1
Автор: Bartek Jeff T., McVey Zach, Rau Michael A.
Принадлежит:

A dynamometer can be used with rail equipment having two pairs of drive wheels. The dynamometer can comprise first and second wheel engagement assemblies, each comprising a frame, a first pair of dynamometer wheels that are spaced relative to a first horizontal dimension, and a second pair of dynamometer wheels that are spaced relative to the first horizontal dimension. The first and second pairs of dynamometer wheels can be spaced relative to a second horizontal dimension. The first pair of dynamometer wheels and second pair of dynamometer wheels can cooperate to define opposing wheel engagement receptacles. A hydraulic motor can couple to the first plurality of support wheels and can be configured to receive a power and an associated torque from a respective pair of the drive wheels of the rail equipment. The first and second wheel engagement assemblies can be movable relative to each other along the second dimension. 1. A dynamometer for use with rail equipment having two pairs of drive wheels , the dynamometer comprising: a frame;', 'a first pair of dynamometer wheels that are spaced relative to a first horizontal dimension and rotatably supported on the frame about a first rotational axis that extends parallel to the first horizontal dimension;', 'a second pair of dynamometer wheels that are spaced relative to the first horizontal dimension and rotatably supported on the frame about a second rotational axis that is parallel to the first horizontal axis and offset from the first horizontal axis relative to a second horizontal dimension that is perpendicular to the first horizontal dimension, wherein the first pair of dynamometer wheels and second pair of dynamometer wheels cooperate to define opposing wheel engagement receptacles;', 'a hydraulic motor coupled to the first pair of dynamometer wheels, wherein the hydraulic motor is configured to receive a power and an associated torque from a respective pair of the drive wheels of the rail equipment,, 'first and ...

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Номер записи: 70
21-05-2015 дата публикации

DIAPHRAGM FOR A PRESSURE-MEASURING DEVICE

Номер: US20150135811A1
Автор: Gugel Denis, Hauber Thomas, Koetzle Wolfgang, Leopold Stefan, WOLFF Janpeter
Принадлежит:

Described is an elastic diaphragm for a pressure-measuring device for ascertaining a pressure in a combustion chamber of an internal combustion engine, especially a self-ignitable internal combustion engine, the diaphragm being accommodated in a housing of the pressure-measuring device in order to separate a pressure chamber from a cavity and in order to seal the housing from the pressure to be measured. The diaphragm has a pressure-application region. Furthermore, the diaphragm is developed in the shape of a ring and in cross-section has a U-shape that is open toward the cavity; the region of the diaphragm on which the pressure is acting is geometrically made up of two interconnected quarter circles, so that the pressurized region has a structure that is self-supporting with respect to the arising combustion pressure loads. 19-. (canceled)10. An elastic diaphragm for a pressure-measuring device for ascertaining a pressure in a combustion chamber of an internal combustion engine , comprising: the diaphragm includes a pressure-application region,', 'the diaphragm is developed in the form of a ring and has a U-shape in cross-section that is open in the direction of the cavity, and', 'the pressure-application region is geometrically formed by two interconnected quarter circles, so that the pressure-application region has a structure that is self-supporting in response to occurring pressure loads., 'a body accommodated in a housing of the pressure-measuring device in order to separate a pressure chamber from a cavity and in order to seal the housing from the pressure to be measured, wherein11. The elastic diaphragm according to claim 10 , wherein the internal combustion engine is a self-igniting internal combustion engine.12. The elastic diaphragm according to claim 10 , wherein a radially outer leg of the U-shape is shorter than a radially inner leg of the U-shape.13. The elastic diaphragm as recited in claim 10 , wherein the two quarter circles are interconnected via ...

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Номер записи: 71
11-05-2017 дата публикации

PRESSURE DETECTION DEVICE

Номер: US20170131170A1
Автор: NAKAMURA Rikoku, SATSUTA Hitoshi, YOMOYAMA Masanori
Принадлежит:

A processing circuit is provided which includes at least an integrator circuit which uses a reference voltage set to have a predetermined magnitude as an operation reference and which integrates a detection signal so as to convert the detection signal into a voltage waveform and a base voltage adjustment circuit which is connected between an input terminal and an output terminal of the integrator circuit and which adjusts the magnitude of a base voltage that is a potential when the detection signal in an output signal output from the integrator circuit is not present. As another form, a processing circuit can be adopted which includes at least one or more amplifier circuits which amplify an output signal from an integrator circuit and a base voltage adjustment circuit which is connected between a supply portion of a reference voltage fed to the amplifier circuit and an input terminal of at least one of the amplifier circuits and which adjusts the magnitude of a base voltage that is a potential when a detection signal in an output signal output from the amplifier circuit is not present. 1. A pressure detection device comprising:a pressure detection element which receives pressure so as to output a detection signal corresponding to the pressure; anda processing circuit which processes and outputs the detection signal output from the pressure detection element,wherein the processing circuit includes at least:an integrator circuit which uses a reference voltage set to have a predetermined magnitude as an operation reference and integrates the detection signal so as to convert the detection signal into a voltage waveform; anda base voltage adjustment circuit which is connected between an input terminal and an output terminal of the integrator circuit and adjusts a magnitude of a base voltage that is a potential when the detection signal in an output signal output from the integrator circuit is not present.2. The pressure detection device according to claim 1 ,wherein the ...

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Номер записи: 72
02-05-2019 дата публикации

CAVITATION ANTI-RESONANCE AND ANTI-SOOT END PIECE FOR PRESSURE SENSOR OF AN INTERNAL COMBUSTION ENGINE

Номер: US20190128778A1
Автор: JOLY Matthieu, PATRI Cyrille
Принадлежит:

A pressure sensor for an internal combustion engine, which includes: a body containing a pressure-measuring membrane and a device for attaching to the cylinder head of the engine; and an end piece which extends substantially in an axial extension of the body, and includes a long part, and a substantially hemispherical convexity positioned on the end part of the long part. 2. The pressure sensor as claimed in claim 1 , wherein the elongate part has a cross section of 1 to 3 mm in diameter at its base claim 1 , a cross section of 2 to 6 mm in diameter on its terminal end and an axial length of 5 to 9 mm.3. The pressure sensor as claimed in claim 1 , wherein the elongate part of the end piece is mounted on the body of the sensor by at least one flexible fastening means.4. The pressure sensor as claimed in claim 1 , wherein the body and the end piece are joined by welding.5. The pressure sensor as claimed in claim 1 , wherein at least one part of the end piece is composed of an elastically deformable material.6. An end piece for a pressure sensor comprising an elongate part comprising a portion of frustoconical shape claim 1 , and a substantially hemispherical convexity positioned on the terminal part of said elongate part.7. The end piece for a pressure sensor as claimed in claim 6 , wherein all of the elongate part of said end piece is of frustoconical shape and flares toward the convexity of the end piece.8. The end piece for a pressure sensor as claimed in claim 7 , wherein the elongate part has a cross section of 1 to 3 mm in diameter at its base claim 7 , a cross section of 2 to 6 mm in diameter on its terminal end and an axial length of 5 to 9 mm.9. An internal combustion engine cylinder head comprising claim 1 , on the one hand claim 1 , a bore comprising a thread and a tubular cavity and claim 1 , on the other hand claim 1 , a pressure sensor as claimed in fastened by a thread of the aforesaid bore such that the end piece is erected in the tubular cavity.10. A ...

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Номер записи: 73
07-08-2014 дата публикации

COMBUSTION CHAMBER PRESSURE GAUGE

Номер: US20140216145A1
Автор: Haußner Michael, POTTIEZ Christian
Принадлежит:

A combustion chamber pressure gauge for an internal combustion engine, comprising a housing tube, a plunger, which is movable in an axial direction in the housing tube under the effect of combustion chamber pressure against a restoring force, and comprising a seal, which is disposed between the plunger and the housing tube, and comprising a sensor for detecting an axial displacement of the plunger. The sensor is decoupled from thermally induced expansions or contractions of the housing tube, in that the sensor is attached to a carrier, which is suspended in the housing tube, and the plunger is movable relative to the carrier under the effect of combustion chamber pressure. 1. A combustion chamber pressure gauge for an internal combustion engine , comprising:a housing tube;a plunger, which is movable in an axial direction in the housing tube under the effect of combustion chamber pressure against a restoring force;a seal, which is disposed between the plunger and the housing tube; anda sensor for detecting an axial displacement of the plunger, wherein the sensor is decoupled from expansions or contractions of the housing tube in that the sensor is attached to a carrier, which is suspended in the housing tube, and in that the plunger is movable relative to the carrier under the effect of combustion chamber pressure.2. The combustion chamber pressure gauge according to claim 1 , wherein the plunger is a glow pencil and the combustion chamber pressure gauge is a glow plug.3. The combustion chamber pressure gauge according to claim 1 , wherein the carrier comprises first and second end sections claim 1 , wherein the first end section is attached to the housing tube and is fixed relative to the housing tube claim 1 , and the second end section is movable relative to the housing tube.4. The combustion chamber pressure gauge according to claim 1 , wherein the carrier is a sleeve.5. The combustion chamber pressure gauge according to claim 1 , wherein the housing tube ...

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Номер записи: 74
21-05-2015 дата публикации

INTERNAL COMBUSTION ENGINE INNER-CYLINDER PRESSURE ESTIMATION APPARATUS

Номер: US20150142294A1
Автор: HAGARI Hideki
Принадлежит: Mitsubishi Electric Corporation

An internal combustion engine inner-cylinder pressure estimation apparatus includes a detection unit that detects an operation condition of an internal combustion engine, a calculation unit that calculates an ignition delay that is an interval from an ignition timing to a starting timing of heat generation by combustion, based on an operation condition detected by the detection unit, and a combustion velocity calculation unit that calculates a combustion velocity, based on the operation condition. There is simulated a phenomenon that after an ignition delay period following an ignition timing has elapsed, a flame generated at the gap portion of an ignition plug expands up to the inner-cylinder wall surface at the combustion velocity and in the shape of an ellipsoid whose center is the gap portion of the ignition plug. 1. An internal combustion engine inner-cylinder pressure estimation apparatus comprising:an operation condition detection unit that detects an operation condition of an internal combustion engine;an ignition delay calculation unit that calculates an ignition delay that is an interval from an ignition timing to a starting timing of heat generation by combustion, based on an operation condition detected by the operation condition detection unit; anda combustion velocity calculation unit that calculates a combustion velocity, based on the operation condition,wherein there is simulated a phenomenon that after an ignition delay period following an ignition timing has elapsed, a flame generated at a gap portion of an ignition plug expands up to the inner-cylinder wall surface at the combustion velocity and in the shape of an ellipsoid whose center is the gap portion of the ignition plug,wherein the inside and the outside of the flame are defined as a combusted portion and a non-combusted portion, respectively, and respective inner-cylinder pressures of the combusted portion and the non-combusted portion are calculated, andwherein a whole inner-cylinder ...

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Номер записи: 75
21-05-2015 дата публикации

INFORMATION PROCESSOR SYSTEM FOR MONITORING A COMPLEX SYSTEM

Номер: US20150142366A1
Автор: BERECHET Ion, BERECHET Stefan, Le Gonidec Serge, MALIKOV Dimitri
Принадлежит: SNECMA

An information processor system for monitoring a complex system and including a mechanism receiving at least one piece of event detection information associated with a detection time and a mechanism generating at least one remanent confidence level value that decreases over time starting from the detection time. 113-. (canceled)14. An information processor system for monitoring a complex system comprising:means for receiving at least one piece of event detection information associated with a detection time; andmeans for generating at least one remanent confidence level value that decreases over time starting from the detection time.15. A processor system according to claim 14 , wherein the remanent confidence level value is associated with at least one failure magnitude value selected as a function of a failure magnitude value associated with the detection time.16. A processor system according to claim 14 , wherein the remanent confidence level value is associated with a fault flag associated with the piece of event detection information.17. A processor system according to claim 14 , further comprising means for generating at least two remanent confidence level values claim 14 , each associated with a malfunction magnitude value claim 14 , each of the at least two remanent confidence level values varying independently of the other.18. A processor system according to claim 14 , further comprising means for generating at least two remanent confidence level values each associated with a malfunction magnitude value claim 14 , the remanent confidence level value among the at least two remanent confidence level values associated with the highest malfunction magnitude value or the lowest malfunction magnitude value being reset to zero if the other remanent confidence level value is not zero.19. A processor system according to claim 14 , wherein claim 14 , starting from the detection time claim 14 , the remanent confidence level value decreases over time from a value that ...

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Номер записи: 76
28-05-2015 дата публикации

Blast Exposure Recording Device

Номер: US20150143875A1
Автор: Jeftic-Stojanovski Gordana, MAKRIS Aristidis, WONG Doug
Принадлежит:

A blast pressure recording device and method includes at least one first sensor for measuring a parameter indicative of a blast event, at least one comparator in communication with the at least one first sensor for determining whether said parameter indicative of a blast event exceeds a predetermined threshold, at least one second sensor for measuring blast pressure, a power control means providing power to the at least one second sensor only when the predetermined threshold is exceeded, and a controller for receiving and recording blast pressure. 138-. (canceled)39. A blast event recording device comprising:at least one first sensor for measuring a parameter indicative of a blast event;at least one comparator in communication with said at least one first sensor that determines whether said parameter indicative of a blast event measured by said at least one first sensor exceeds a first predetermined threshold;at least one second sensor that measures a blast event parameter, wherein said at least one second sensor has a higher power consumption than said at least one first sensor;a power control providing power to said at least one second sensor only when said first predetermined threshold is exceeded whereby said at least one second sensor is only consuming power when said first predetermined threshold exceeded; and,a controller that receives and records said blast event parameter measured by said at least one second sensor.40. A blast event recording device as set forth in wherein said comparator determines whether said parameter indicative of a blast event further exceeds a second predetermined threshold claim 39 , and said power control provides power to said controller only when said second predetermined threshold is exceeded.41. A blast event recording device according to claim 40 , wherein said at least one first sensor comprises at least one accelerometer and said parameter indicative of a blast event comprises acceleration.42. A blast event recording device ...

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Номер записи: 77
28-05-2015 дата публикации

PROCESS AND DEVICE FOR TESTING THE POWERTRAIN OF AT LEAST PARTIALLY ELECTRICALLY DRIVEN VEHICLES

Номер: US20150143885A1
Автор: Gregorcis Gregor, Gschweitl Kurt, Jakubek Stefan, König Oliver, Prochart Günter
Принадлежит: AVL List GmbH

In a process for testing the powertrain of vehicles that are at least in part electrically driven, the voltage supplied to the powertrain is controlled by a controller coupled with a simulation system for the energy storage system in a way that the voltage acts dynamically as for a real energy storage system. The controller is designed with a model based controller design method, with a load model of the powertrain being used in the model of the controlled system. 17-. (canceled)8. A method for testing the powertrain of vehicles that are at least in part electrically driven , whereby the voltage supplied to the powertrain is controlled by a controller coupled with a simulation system for the energy storage system in a manner that the voltage acts dynamically as for a real energy storage system , whereat the controller is designed with a model based controller design method as model predictive control , whereby a load model of the powertrain being used in the discrete time model of the controlled system and at each time instant (k) an optimal sequence of control moves (Δu) is determined , wherein the model has a parameter (g) in its parameter set that is variable over the operating range and wherein a number (i) of parameter sets with parameter (g) is calculated over the operating range and the parameter set with parameter (g) which is closest to the actual parameter (g) is chosen for determining the sequence of control moves (Δu).9. The method according to claim 8 , wherein the output voltage is measured claim 8 , the power demand of the powertrain is estimated and the parameters of the load model are modified in dependence of the output voltage and the estimated load demand claim 8 , preferably by switching between complete sets of parameters.10. The method according to claim 9 , wherein the estimation of the load demand is accomplished with an observer system claim 9 , based on the measured load current.11. A device for testing of a powertrain of vehicles that are ...

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Номер записи: 78
30-04-2020 дата публикации

SYSTEM AND METHOD FOR MONITORING ENVIRONMENTAL CONDITIONS WITHIN SHIPPING CONTAINERS

Номер: US20200132515A1
Автор: Barta Allen Brian, Boschert Jason, Verdicchio Michael Patrick
Принадлежит: Rolls-Royce Corporation

Systems and methods are presented for monitoring shipping containers. A system comprises a shipping container, a sensing component, and a transmission device. The shipping container defines an interior compartment. The sensing component is positioned within the interior compartment and comprises one or more sensors, a sensing component battery, a sensing component microcontroller, and a communication chip. The one or more sensors sense atmospheric data. The sensing component microcontroller has a memory and receives the atmospheric data sensed by the one or more sensors at a predetermined interval and stores the atmospheric data in the memory. The transmission device is external to the interior compartment and comprises a receiver and a transmitter. The receiver receives data transmitted by the sensing component. The transmitter transmits the received data to a storage location. The transmission device is paired with the sensing component or an interior component contained within the interior compartment. 1. A system for monitoring shipping containers comprising:a shipping container defining an interior compartment; one or more sensors for sensing atmospheric data;', 'a sensing component battery;', 'a sensing component microcontroller having a memory, wherein the sensing component microcontroller receives the atmospheric data sensed by the one or more sensors at a predetermined interval and stores the atmospheric data in said memory; and', 'a communication chip;, 'a sensing component positioned within the interior compartment, the sensing component comprising a receiver for receiving data transmitted by said sensing component; and', 'a transmitter for transmitting the received data to a storage location;, 'a transmission device external to the interior compartment defined by the shipping container, the transmission device comprisingwherein the transmission device is paired with the sensing component or an interior component contained within said interior compartment ...

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Номер записи: 79
26-05-2016 дата публикации

METHOD FOR DETECTING SURGE LEVEL IN VEHICLE

Номер: US20160146702A1
Автор: Lee Heung Seok, Oh Wan Soo
Принадлежит:

A method for detecting a surge level in a vehicle based on a combustion pressure in a cylinder includes determining an IMEP parameter which determines stability of combustion according to a covariance of an IMEP. A PPP parameter, which varies the covariance of the IMEP and determines stability of combustion according to a variance in an angle of rotation of a crank when the combustion pressure reaches the highest point, is determined. A BD parameter, which varies both the the covariance of the IMEP and the angle of rotation of the crank and determines the stability of combustion according to a variance in the angle of rotation of the crank when a set range of amount of fuel is burned in the cylinder, is determined. An RPM parameter, which determines a surge level according to a variance in an RPM of an engine, is determined. 1. A method for detecting a surge level in a vehicle based on a combustion pressure inside a cylinder , the method comprising:determining an indicated mean effective pressure (IMEP) parameter which determines stability of combustion according to a variance in a covariance of IMEP;determining a peak cylinder pressure position (PPP) parameter which varies the covariance of IMEP and which determines the stability of combustion according to a variance in an angle of rotation of a crank when the combustion pressure in the cylinder reaches a highest point;determining a burn duration (BD) parameter which varies both the angle of rotation of the crank when the combustion pressure in the cylinder reaches the highest point and the covariance of IMEP and which determines the stability of combustion according to the variance in the angle of rotation when a set range of amount of fuel is burned in the cylinder; anddetermining a revolutions per minute (RPM) parameter which determines a surge level according to a variance in an RPM of an engine.2. The method of claim 1 , wherein the surge level is calculated using the following equation:{'br': None, '[(IMEP ...

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Номер записи: 80
26-05-2016 дата публикации

COMBUSTION STATE PARAMETER CALCULATION METHOD FOR INTERNAL COMBUSTION ENGINE

Номер: US20160146703A1
Автор: Akazaki Shusuke, Inoue Taisuke, SAITO Shunichi
Принадлежит:

A combustion state parameter calculation method for an internal combustion engine, which is capable of continuously calculating a combustion state parameter while properly maintaining the accuracy of the calculated parameter even when part of in-cylinder pressure sensors is in failure. In the combustion state parameter calculation method, as a combustion state parameter, a first combustion state parameter dependent on the magnitude of in-cylinder pressure is calculated based on a detection value from an in-cylinder pressure sensor, on a cylinder-by-cylinder basis. When it is determined that a characteristic abnormality failure in which the magnitude of the detection value deviates from the actual in-cylinder pressure has occurred in part of the in-cylinder pressure sensors and has not occurred in the other in-cylinder pressure sensors, the first combustion state parameter of a failure-determined cylinder is calculated based on the detection value from the other in-cylinder pressure sensors. 1. A combustion state parameter calculation method for an internal combustion engine , which calculates , based on detection values from a plurality of in-cylinder pressure sensors provided in at least two cylinders of the engine , each for detecting in-cylinder pressure which is pressure in a cylinder associated therewith , a combustion state parameter indicative of a combustion state in the cylinder , comprising:a first combustion state parameter-calculating step of calculating, as the combustion state parameter, a first combustion state parameter dependent on the magnitude of the in-cylinder pressure, based on the detection value from the in-cylinder pressure sensor, on a cylinder-by-cylinder basis; anda failure determining step of determining whether or not a characteristic abnormality failure in which the magnitude of the detection value from the in-cylinder pressure sensor deviates from an actual in-cylinder pressure has occurred, on an in-cylinder pressure sensor-by-in- ...

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Номер записи: 81
14-08-2014 дата публикации

SYSTEMS AND METHODS FOR DETERMINING A LEVEL OF FOULING OF COMPRESSORS

Номер: US20140229121A1
Автор: De Bortoli Lorenzo, Greco Giorgio, Lucas Patrick, Pieri Alberto, Sangiorgio Vincenzo, Xia Hua
Принадлежит: NUOVO PIGNONE S.P.A.

A system and a method for determining a degree of fouling formation in a compressor, e.g., in an ethylene production unit or other application. Data associated with the operation of the compressor is collected. Based on the collected data, polytropic efficiency of the compressor is calculated. The estimated polytropic efficiency is normalized to render the estimate more indicative of the degree of fouling. 1. A method for determining a degree of fouling formation in a compressor , the method comprising:collecting data associated with operation of the compressor;estimating a polytropic efficiency of at least one stage of the compressor using the collected data;normalizing the estimated polytropic efficiency; anddetermining the degree of fouling formation in the compressor based on the normalized estimated polytropic efficiency.2. The method of claim 1 , wherein the step of collecting data further comprises:obtaining data associated with pressure, temperature, and gas density in different stages from the compressor or a compressor train.3. The method of claim 1 , wherein the step of estimating the polytropic efficiency η further comprises claim 1 , for an ideal gas condition claim 1 ,{'b': 2', '1', '2', '1, 'calculating η=(k−1)/k * In (P/P)/In (T/T),'}where:k is a ratio of a constant-pressure specific heat over a constant-volume specific heat;{'b': 1', '2, 'T and T are suction and discharge temperatures, respectively; and'}{'b': 1', '2, 'P and P are suction and discharge pressures, respectively, or a variant of this equation for non-ideal gas conditions.'}4. The method of claim 3 , wherein a value for k is directly measured using a gas chromatograph from a specific stage in the compressor.512. The method of claim 3 , wherein a value for P and P are directly measured using pressure gauges from suction and discharge sections in the compressor.612. The method of claim 3 , wherein a value for T and T are directly measured using thermometers from suction and discharge ...

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Номер записи: 82
25-05-2017 дата публикации

Cylinder Internal Pressure Sensor

Номер: US20170146415A1
Автор: Hashimoto Seiji
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A cylinder internal pressure sensor configured to be subjected to heat of combustion inside a combustion chamber and a pressure inside the combustion chamber, and including: a housing; a diaphragm joined to one end of the housing and being configured to deflect according to the pressure inside the combustion chamber; a sensor element housed inside the housing, being coupled to the diaphragm; and being configured to change a signal to be output according to a temperature inside the combustion chamber and the pressure inside the combustion chamber; a heating element configured to heat the sensor element; and a control unit configured to control the amount of heat generated by the heating element such that the temperature of the sensor element becomes higher than a first predetermined temperature that is the temperature of the sensor element when subjected to the heat of combustion is provided. 1. A cylinder internal pressure sensor to be disposed inside a combustion chamber of an internal combustion engine , the cylinder internal pressure sensor being configured to be subjected to heat of combustion inside the combustion chamber and a pressure inside the combustion chamber , the cylinder internal pressure sensor comprising:a housing;a diaphragm joined to one end of the housing, the diaphragm being configured to deflect according to the pressure inside the combustion chamber;a sensor element housed inside the housing, the sensor element being coupled to the diaphragm, and the sensor element being configured to change a signal to be output according to a temperature inside the combustion chamber and the pressure inside the combustion chamber;a heating element configured to heat the sensor element; anda control unit configured to control an amount of heat generated by the heating element such that the temperature of the sensor element becomes higher than a first predetermined temperature that is the temperature of the sensor element when subjected to the heat of ...

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Номер записи: 83
02-06-2016 дата публикации

PRESSURE INDICATING DEVICE

Номер: US20160153854A1
Автор: BOHLIEN Werner
Принадлежит:

The invention relates to a pressure indicating device for indicating a pressure in a first fluid system, said pressure indicating device including a first port via which it is fluidically connected to the first system, which pressure indicating device furthermore comprises a cylinder with a preloaded piston that can be displaced therein in an axial direction, during which movement fluid contained in the first system can act on the piston surface. The invention is characterized in that said piston has an opening in its piston surface, which opening can be made to communicate with a second system via a second port, said piston comprising a diaphragm which is impermeable to a first fluid but permeable to a second fluid, said diaphragm separating the first port from the second port. 1. A pressure indicating device for indicating a pressure in a first fluid system , said pressure indicating device comprising:a first port via which said pressure indicating device is fluidically connected to the first fluid system,a cylinder in which a preloaded piston can be displaced in an axial direction, during which movement fluid contained in the first fluid system can act on the piston surface, wherein said piston has an opening in its piston surface, which opening can be made to communicate with a second system via a second port, said piston comprising a diaphragm which is impermeable to a first fluid but permeable to a second fluid, said diaphragm separating the first port from the second port.2. The pressure indicating device as claimed in claim 1 , wherein the diaphragm is impermeable to a liquid and permeable to a gas or a gas mixture.3. The pressure indicating device as claimed in claim 1 , wherein said diaphragm is permeable to air claim 1 , but impermeable to water or oil.4. The pressure indicating device as claimed in claim 1 , wherein the second port is suitable for creating a connection which is in communication with the environment/ambient atmosphere.5. The pressure ...

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Номер записи: 84
09-06-2016 дата публикации

Laser system for measuring internal cylinder pressure

Номер: US20160161368A1
Автор: Marion Billingsley Grant, Martin Leo Willi
Принадлежит: Caterpillar Inc

A system is disclosed for measuring internal cylinder pressure of a combustion chamber at least partially formed by a cylinder head. The system. may include an emitter configured to generate and emit a wavelength of energy along a surface of the cylinder head, and a target inline with the emitter and configured to receive the wavelength of energy. The system may also include a controller in communication with the emitter and/or target. The controller may be configured to correlate a distortion of the wavelength of energy to the internal pressure.

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Номер записи: 85
14-06-2018 дата публикации

SYSTEM, METHOD AND APPARATUS FOR PULSATING PRESSURE MEASUREMENT

Номер: US20180164182A1
Автор: Willy Christopher J.
Принадлежит:

A testing system for pulsating pressure measurement of the pressure of a fluid in dynamic pressure service in a pipe system is disclosed. For example, the testing system can include an accelerometer mounted to an exterior of the pipe system. An analyzer can be provided for sampling and filtering data from the only one accelerometer. In addition, a computer can be provided for running an algorithm to convert the data from the only one accelerometer to data regarding the pressure of the fluid in the pipe system. 1. A testing system for evaluating an efficiency of a reciprocating system having a cylinder with a piston , an intake port for directing a fluid to the piston , a discharge port for directing the fluid away from the piston , and a leak-off pipe coupled to the cylinder for any of the fluid that blows by the piston , the testing system comprising:an accelerometer mounted to an exterior of at least one of the intake port, the discharge port or the leak-off pipe, without direct contact with and sampling of the fluid inside the reciprocating system, and a pipe system in fluid communication with the cylinder and piston which form pressure in the reciprocating system; and the accelerometer as an intake port sensor for inferring an intake pressure of the fluid in the intake port based on data from the intake port sensor;', 'the accelerometer as a discharge port sensor for inferring a discharge pressure of the fluid in the discharge port based on data from the discharge port sensor; or', 'the accelerometer as a leak-off pipe sensor for inferring a leak pressure of the fluid in the leak-off pipe based on data from the leak-off pipe sensor; and, 'a computation system coupled to at least one ofthe computation system is operable to determine the efficiency of the reciprocating system based on at least one of the intake pressure, the discharge pressure or the leak pressure.2. The testing system of claim 1 , wherein the accelerometer consists of only one accelerometer and ...

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Номер записи: 86
18-09-2014 дата публикации

INTRA-CYLINDER PRESSURE SENSOR FAULT DIAGNOSTIC DEVICE AND INTRA-CYLINDER SENSOR SENSITIVITY CORRECTION DEVICE PROVIDED WITH SAME

Номер: US20140260574A1
Автор: SASAKI Keisuke, Urano Shigeyuki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An intra-cylinder pressure sensor fault diagnostic device that ensures an opportunity for fault diagnosis in a wide operation region, and can accurately detect an intra-cylinder pressure with a high S/N ratio. The fault diagnostic device for an intra-cylinder pressure sensor, which outputs a value corresponding to an intra-cylinder pressure of an internal combustion engine delays ignition timing so that firing timing comes after a compression top dead center to generate peaks of the intra-cylinder pressure before firing and after firing respectively. When the ignition timing is delayed, at least one of an output value of the intra-cylinder pressure sensor in the peak of the intra-cylinder pressure before firing (hereinafter, called a pre-firing output peak value) and a crank angle thereof is detected. A fault of the intra-cylinder pressure sensor is determined by using at least one of the pre-firing output peak value and the crank angle thereof 16-. (canceled)7. A fault diagnostic device for intra-cylinder pressure sensor that outputs a value corresponding to an intra-cylinder pressure of an internal combustion engine , wherein the fault diagnostic device is configured to:delay ignition timing so that firing timing comes after a compression top dead center to generate peaks of the intra-cylinder pressure before firing and after firing respectively;detect at least one of an output value of the intra-cylinder pressure sensor in the peak of the intra-cylinder pressure before firing (hereinafter, called a pre-firing output peak value) and a crank angle thereof, when the ignition timing is delayed; anddiagnose presence or absence of a fault of the intra-cylinder pressure sensor by using at least one of the pre-firing output peak value and the crank angle thereof.8. The fault diagnostic device according to claim 7 ,wherein the detecting includes detecting at least the pre-firing output peak value, andthe diagnosing includes determining that a fault is present in the intra ...

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Номер записи: 87
18-09-2014 дата публикации

Power Assembly Test Stand System and Method

Номер: US20140260578A1
Автор: Cutright Jeff M., Keister Patrick E.
Принадлежит: NORFOLK SOUTHERN CORPORATION

A system and method for testing and maintaining a power assembly of a locomotive diesel engine. In one embodiment of the invention, the testing apparatus comprises: a first test position for securing a strongback of a power assembly; a second test position for securing a cylinder head of the power assembly; and a third test position for securing a cylinder liner. In another embodiment of the invention, the testing method comprises: securing a power assembly to a first test position; removing a cylinder head from the power assembly; securing the cylinder head to a second test position; removing a cylinder liner from the strongback assembly; placing the cylinder liner into the third test position; cleaning the cylinder liner; testing the cylinder head for possible leakage; and re-assembling the power assembly cylinder head passes the leakage tests. 1. A testing apparatus for a diesel engine power assembly , the testing apparatus being separate and apart from the diesel engine power assembly tested and comprising:a first portion providing a first test position for securing a strongback of the power assembly, wherein the first portion comprises a first planar surface and a first plurality of vertical pins and mechanical clamps to secure the strongback;a second portion providing a second test position for securing a cylinder head of the power assembly, wherein the second portion comprises a second planar surface and a second plurality of vertical pins and hydraulically actuated clamps to secure the cylinder head to the second planar surface, and wherein the second planar surface of the second portion is movable about at least one hinge; anda third portion providing a third test position for securing a cylinder liner, wherein the third portion comprises a cylinder liner support.2. The testing apparatus of claim 1 , wherein the first portion further comprises a hydraulic ram to remove a liner from the strongback.3. The testing apparatus of claim 2 , wherein the first ...

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Номер записи: 88
30-06-2016 дата публикации

SENSOR MODULE FOR A PRESSURE-MEASURING SHEATHED-ELEMENT GLOW PLUG

Номер: US20160186712A1
Автор: Krueger Juergen, Maier-Schleich Anke, Scholzen Holger
Принадлежит:

A sensor module having a sensor housing, at least one piezoelectric converter element that is disposed in the sensor housing, and at least one insulating member that is disposed in the sensor housing alongside the converter element. The insulating member has on its outer periphery at least one recess in which a contacting system of the converter element extends. A pressure-measuring glow plug having a sensor module of this kind is also described. 111-. (canceled)12. A sensor module comprising:a sensor housing;at least one piezoelectric converter element that is disposed in the sensor housing; andat least one insulating member that is disposed in the sensor housing alongside the converter element, the insulating member having on its outer periphery at least one recess in which a contacting system of the converter element extends.13. The sensor module as recited in claim 12 , wherein the insulating member has a substantially square shape having a recess on each side so that a symmetrical shape for the insulating member is provided claim 12 , the contacting system of the converter element extending in two recesses.14. The sensor module as recited in claim 13 , wherein the insulating member has rounded corners claim 13 , rounding profiles of the corners lying on the same circumference.15. The sensor module as recited in claim 12 , wherein the recess has a rounded shape.16. The sensor module as recited in claim 12 , wherein the converter element has a substantially cuboidal shape.17. The sensor module as recited in claim 12 , further comprising:at least one contact element disposed between the insulating member and converter element and being connected to the contacting system.18. The sensor module as recited in claim 12 , wherein the insulating member is made of a ceramic material.19. The sensor module as recited in claim 12 , wherein the insulting member is made of aluminum oxide.20. The sensor module as recited in claim 12 , wherein the sensor housing has a hollow- ...

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Номер записи: 89
06-07-2017 дата публикации

ELECTRIC MOTOR TEST SYSTEM

Номер: US20170191903A1
Автор: KOMADA Mineyuki, Sasahara Kazuhisa
Принадлежит: HORIBA, LTD.

In order to easily and accurately measure the cogging torque of an electric motor, the present invention includes a dynamometer connected to an electric motor, a torque sensor adapted to measure the torque of the electric motor, and a cogging torque measurement motor for measuring the cogging torque of the electric motor, and is configured such that when measuring the cogging torque of the electric motor, the electric motor, the dynamometer, and the cogging torque measurement motor are connected. 1. An electric motor test system adapted to test performance of an electric motor of a vehicle , the electric motor test system comprising:a dynamometer that is connected to the electric motor;a torque sensor adapted to measure a torque of the electric motor; anda cogging torque measurement motor for measuring a cogging torque of the electric motor, whereinwhen measuring the cogging torque of the electric motor, the electric motor, the dynamometer, and the cogging torque measurement motor are connected.2. The electric motor test system according to claim 1 , wherein the electric motor is connected to one end side of a rotating shaft of the dynamometer claim 1 , andthe cogging torque measurement motor is connected to the other end side of the rotating shaft.3. The electric motor test system according to claim 1 , wherein the electric motor is connected to one end side of a rotating shaft of the dynamometer claim 1 , andthe cogging torque measurement motor is connected to the one end side of the rotating shaft or to a connecting mechanism connecting the electric motor to the one end side of the rotating shaft.4. The electric motor test system according to claim 1 , wherein the torque sensor is provided on a side of the electric motor rather than the cogging torque measurement motor.5. The electric motor test system according to claim 1 , further comprising:a connecting/disconnecting mechanism provided between the cogging torque measurement motor and the dynamometer, wherein ...

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Номер записи: 90
25-09-2014 дата публикации

MEASURING PLUG AND METHOD FOR ASSEMBLING A MEASURING PLUG

Номер: US20140283586A1
Автор: Berkel Engbertus, Salden Bart Jan Mathijs, Talsma Jochem Hendrik
Принадлежит:

Disclosed is a pressure-measuring plug for a combustion engine. An interconnection structure in the plug body electrically couples by means of a flexible printed circuit board (PCB) an electrical sensing element at one end of the plug body to connector terminals of the plug at the other end of the plug body. An elongated support structure fixates a part of the flexible PCB in the plug body to enable the flexible PCB to withstand automotive conditions and to facilitate during assembly to put the flexible PCB through the hollow plug body. 1. A measuring plug comprising:a hollow plug body comprising a proximal end, a distal end and a plug body axis;a sensing structure comprising at least one electrical sensing element, the sensing structure located at the proximal end of the hollow plug body; andconnector terminals arranged in a housing which is attached to the distal end of the hollow plug body, the connector terminals electrically coupled by electronic circuitry and bonding wires to the at least one electrical sensing element;the measuring plug further comprising an interconnection structure providing an electrical connection through the hollow plug body;the interconnection structure comprising a flexible printed circuit board (PCB) with first contact areas at a proximal end part of the flexible PCB and second contact areas at a distal end part of the flexible PCB;the first contact areas electrically coupled to the electrical sensing element by bonding wires, the proximal end part of the flexible PCB positioned in the hollow plug body in a plane which is perpendicular to the plug body axis;the interconnection structure further comprising an elongated support structure configured to fixate a part of the flexible PCB between the proximal end and distal end of the flexible PCB in the hollow plug body.2. The measuring plug of wherein the interconnection structure further comprises a ring-shaped support structure wherein the proximal end of the flexible PCB is attached to ...

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Номер записи: 91
13-07-2017 дата публикации

Dynamic Quantity Measuring Device and Pressure Sensor Using Same

Номер: US20170199096A1
Автор: MIYAJIMA Kentarou
Принадлежит: Hitachi Automotive Systems, Ltd.

Provided are a dynamic quantity measuring device having higher accuracy and longer-term reliability than in the prior art, and a pressure sensor using the same. A dynamic quantity measuring device is provided with a first Wheatstone bridge configured by an impurity diffused resistor on a principal surface of one semiconductor substrate, and detects a difference between strain quantities respectively generated in an x-axis direction and a y-axis direction that are orthogonal to each other on the principal surface of the semiconductor substrate by the first Wheatstone bridge, the dynamic quantity measuring device being provided with, on the principal surface of the semiconductor substrate, a second Wheatstone bridge for detecting the strain quantity in the x-axis direction, and a third Wheatstone bridge for detecting the strain quantity in the y-axis direction. 1. A mechanical quantity measurement device comprising:a first Wheatstone bridge which is configured using an impurity diffusion resistor on a main surface of a single semiconductor substrate, a difference between a strain amount generated in an x-axis direction and a strain amount generated in a y-axis direction, which are orthogonal to each other, on the main surface of the semiconductor substrate being detected by the first Wheatstone bridge; anda second Wheatstone bridge which detects the strain amount in the x-axis direction, and a third Wheatstone bridge which detects the strain amount in the y-axis direction, on the main surface of the semiconductor substrate.2. The mechanical quantity measurement device according to claim 1 , whereinthe main surface of the semiconductor substrate is a surface {100} of monocrystalline silicon.3. The mechanical quantity measurement device according to claim 2 , whereinthe x axis direction and the y-axis direction match a direction <110> of a silicon substrate,the first Wheatstone bridge includes four resistors that cause current to flow in the direction <110>, and the ...

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Номер записи: 92
21-07-2016 дата публикации

FUEL INJECTION VALVE WITH CYLINDER INTERNAL PRESSURE SENSOR

Номер: US20160208755A1
Автор: SATO Gaku
Принадлежит:

A signal transmitting unit that makes up a fuel injection valve includes a first signal transmitting member a distal end of which is connected to a sensor, and a second signal transmitting member a proximal end of which is connected to an amplifying member. A first connector of the first signal transmitting member is formed in a convex shape, and is inserted into a concave part of a second connector in the second signal transmitting member and connected by solder. At this time, a clearance in a radial direction is included between the first connector and the concave part. Further, a third connector is formed on a proximal end of the second signal transmitting member, and is inserted into a connecting hole of the amplifying member and connected by solder. Further, a clearance in a radial direction is included between the third connector and the connecting hole. 1. A fuel injection valve equipped with a cylinder internal pressure sensor , the sensor being provided at an end of the fuel injection valve configured to directly inject fuel into a combustion chamber of an internal combustion engine , the sensor being configured to detect a cylinder internal pressure in an interior of the combustion chamber , the fuel injection valve comprising:a signal transmitting member configured to transmit, as a detection signal, the cylinder internal pressure detected by the sensor;wherein the signal transmitting member comprises:a first transmitting unit connected to the sensor;a second transmitting unit configured to externally output the detection signal; anda third transmitting unit configured to interconnect the first transmitting unit and the second transmitting unit;wherein clearances are provided, respectively, at a connection site between the first transmitting unit and the third transmitting unit, and at a connection site between the second transmitting unit and the third transmitting unit, and an intermediate portion of the third transmitting unit between both ends of the ...

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Номер записи: 93
18-06-2020 дата публикации

Integrated fault monitoring apparatus for electrical equipment

Номер: US20200191880A1
Автор: Jeremy Michael VAN HORN, John Paul Chisholm, Justin George Pezzin, Sophie Anne RAMSDEN, Yen-You LIN
Принадлежит: IFD INTERNAL FAULT DETECTOR CORP

An integrated fault monitoring apparatus for electrical devices has an internal fault detector for detecting transient pressure surges within the electrical device, a pressure relief valve for allowing release of pressure during normal operating conditions of the electrical device, a temperature indicator for indicating that an operating temperature of the electrical device has gone above a predetermined threshold, and/or a sudden pressure relief device for allowing air to escape from the electrical device in the event of a sudden and significant increase in pressure within the electrical device. Methods of using the apparatus are provided.

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Номер записи: 94
06-08-2015 дата публикации

PHYSICAL QUANTITY SENSOR, ALTIMETER, ELECTRONIC APPARATUS, AND MOVING OBJECT

Номер: US20150219515A1
Автор: HAYASHI Kazuya
Принадлежит:

A physical quantity sensor includes a substrate having a diaphragm, a sensor element disposed on the diaphragm, a wall section disposed on the substrate, and having a hollow section surrounding the sensor element, a covering section connected to the wall section, and a reinforcement section disposed so as to partially overlap the covering section, and including a material lower in thermal expansion coefficient than a constituent material of the covering section. 1. A physical quantity sensor comprising:a substrate having a diaphragm which can flexurally be deformed;a sensor element disposed above the diaphragm of the substrate;a wall section disposed above the substrate and surrounding the sensor element in a planar view of the substrate;a covering section partially overlapping the sensor element in the planar view of the substrate, and connected to the wall section; anda reinforcement section partially overlapping the covering section in the planar view of the substrate, and including a material lower in thermal expansion coefficient than a constituent material of the covering section.2. The physical quantity sensor according to claim 1 , whereinthe reinforcement section includes a material included in one of the wall section and the diaphragm.3. The physical quantity sensor according to claim 1 , whereinthe reinforcement section includes silicon.4. The physical quantity sensor according to claim 1 , whereinthe reinforcement section includes a part having a lattice-like shape in the planar view of the substrate.5. The physical quantity sensor according to claim 1 , whereinthe reinforcement section includes apart having a radial shape in the planar view of the substrate.6. The physical quantity sensor according to claim 1 , whereinthe reinforcement section is disposed above the covering section.7. The physical quantity sensor according to claim 6 , wherein a first layer provided with a through hole penetrating in a thickness direction, and', 'a second layer disposed ...

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Номер записи: 95
28-07-2016 дата публикации

Method and device for detecting a plasma ignition

Номер: US20160217982A1
Автор: Jürgen Niess, Nicole Sacher, Wilfried Lerch, Wilhelm Kegel
Принадлежит: CENTROTHERM PHOTOVOLTAICS AG, HQ Dielectrics GmbH

Disclosed are a method and an apparatus for the detection of a plasma in a process chamber for the treatment of substrates. In the method, the pressure within the chamber is measured over a period of time using a pressure sensor, a sudden change in pressure is detected and an ignition or extinguishing of a plasma determined at least by means of the pressure change. The apparatus comprises a process chamber, for receiving at least one substrate, with at least one plasma generator, at least one pressure sensor which is situated so as to detect the pressure within the process chamber and output an output signal corresponding to the pressure, and at least one evaluation unit. The evaluation unit is capable of monitoring over a period of time an output signal from the pressure sensor and, on the basis of at least one sudden change in the output signal of the pressure sensor, of determining an ignition and/or an extinguishing of a plasma.

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Номер записи: 96
27-07-2017 дата публикации

MANAGEMENT APPARATUS FOR MEASUREMENT EQUIPMENT

Номер: US20170212001A1
Автор: KAMEZAKI Ritsuko
Принадлежит: HORIBA, LTD.

The data-accepting part accepts normal time information data and non-normal time information data, which are outputted from measurement equipment connected to the management apparatus, the data-identifying part identifies the normal time information data and the non-normal time information data based on the difference in the transmission path of the data, or based on identification information given to the data, and the data-output part outputs the above-mentioned normal time information data and the non-normal time information data, such that an operator identifies the information data. 1. A management apparatus for measurement equipment , the management apparatus comprising ,a data-accepting part, a data-identifying part, and a data-output part, whereinthe data-accepting part accepts information data at a normal time and information data at a non-normal time, which are outputted from a measurement equipment connected to the management apparatus,the data-identifying part identifies the information data of the normal time and the information data of the non-normal time, which are accepted by the data-accepting part, based on the difference in the transmission path of the information data, or based on identification information given to one or both of the information data, andthe data-output part outputs the above-mentioned information data of the normal time and the information data of the non-normal time, which are identified by the data-identifying part, such that the operator of the management apparatus identifies the information data.2. The management apparatus according to claim 1 , wherein the data-identifying part carries out one or both of the processing of the following (i) and (ii) on the normal time information data and the non-normal time information data claim 1 , which are identified based on the difference between the transmission paths of the information data claim 1 ,(i) a processing to give identification information to at least one of the normal ...

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Номер записи: 97
27-07-2017 дата публикации

METHOD FOR DETERMINING THE TOTAL PRESSURE IN THE CYLINDER OF AN ENGINE

Номер: US20170212002A1
Автор: BOUQUEY Christophe, VAROQUIE Bertrand
Принадлежит:

A method () for determining the total pressure in a cylinder (P) of an engine as a function of the angular position (crk) of a crankshaft () and from a quantity of fuel to be injected in possibly several injections, includes: 114. A method for determining the total pressure in a cylinder (P) of an engine as a function of the angular position (crk) of a crankshaft () and from a quantity of fuel to be injected in possibly several injections , the method comprising:{'sub': cyl', '_', 'm, 'determining the pressure in the cylinder when there is no combustion, said pressure being called the pressure without combustion (P),'}{'sub': i', 'comb', '_', 'i', 'i', 'i', 'i, 'determining, for each injection (inj), a curve of sub-variation of pressure (ΔP) caused by the combustion of the fuel quantity injected during the injection (inj) in question, the shape of the curve being estimated as a function of the quantity of fuel (MF) to be injected and of the angular position for start of injection (SOI) of the corresponding injection,'}{'sub': cyl', 'cyl', '_', 'm', 'comb', '_', 'i', 'i, 'determining the total pressure in the cylinder (P) by adding together the pressure without combustion (P) and the pressures given by the pressure sub-variation curves (ΔP) of each injection (inj).'}2. The method as claimed in claim 1 , wherein the pressure without combustion (P) is determined by considering that the compression and the expansion of the gas mixture contained in the cylinder are adiabatic and that said mixture behaves like an ideal gas claim 1 , said determination being linearly corrected as a function of the cooling temperature (TCO) and of the exhaust gas recirculation rate (EGR).3141414. The method as claimed in claim 1 , wherein each pressure sub-variation curve (ΔP) claim 1 , is determined by a relationship between the combustion efficiency (η) claim 1 , the quantity of fuel to be injected (MF) claim 1 , the volume of the cylinder relative to the angular position (crk) of the ...

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Номер записи: 98
13-08-2015 дата публикации

COMBUSTION PRESSURE SENSOR

Номер: US20150226641A1
Автор: Hayashi Takayuki, TAKAHASHI Kazuo
Принадлежит:

A combustion pressure sensor is formed of a ring-shaped cylindrical body. The combustion pressure sensor detects combustion pressure in a combustion chamber of an engine by being attached to an outer periphery of a tip of a functional component attached to the combustion chamber. The cylindrical body forms sealed space sealed with a ring-shaped diaphragm on one side and with a ring-shaped support member on an opposite side. The sealed space is defined by an external cylindrical member and an internal cylindrical member coaxial with each other. The diaphragm has a ring-shaped pressure receiving part formed on a side near the combustion chamber to receive pressure from outside and a ring-shaped transmitting part formed on a rear surface of the diaphragm. A pressure transmitting member and a pressure detecting element are provided in the sealed space. Tight abutting contact is formed between the transmitting part of the diaphragm and the pressure transmitting member, between the pressure transmitting member and the pressure detecting element, and between the pressure detecting element and the support member. 1. A combustion pressure sensor formed of a ring-shaped cylindrical body , the combustion pressure sensor detecting combustion pressure in a combustion chamber of an engine by being attached to an outer periphery of a tip of a functional component attached to the combustion chamber , whereinthe cylindrical body forms sealed space sealed with a ring-shaped diaphragm on one side and with a ring-shaped support member on an opposite side, the sealed space being defined by an external cylindrical member and an internal cylindrical member coaxial with each other,the diaphragm has a ring-shaped pressure receiving part formed on a side near the combustion chamber to receive pressure from outside and a ring-shaped transmitting part formed on a rear surface of the diaphragm,a pressure transmitting member and a pressure detecting element are provided in the sealed space, ...

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Номер записи: 99
13-08-2015 дата публикации

IN-CYLINDER PRESSURE DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20150226642A1
Автор: Sawada Hiroshi, SUZUKI Yusuke, Urano Shigeyuki, Watanabe Masatoshi
Принадлежит:

This invention determines whether or not an internal combustion engine is not performing combustion. If the determined result is that the internal combustion engine is not performing combustion, a maximum in-cylinder pressure Pduring motoring is identified by an in-cylinder pressure sensor, and a crank angle θcorresponding to the maximum in-cylinder pressure Pis detected by a crank angle sensor. Further, a reference crank angle θcorresponding to the engine speed and the engine load factor is identified, and θis corrected so as to become θ. Furthermore, the relation between a signal of the crank angle sensor and a crank angle (measured value) corresponding to the signal is corrected so that a measured value of the crank angle corresponding to Pbecomes the post-correction crank angle. 1. An in-cylinder pressure detection device for an internal combustion engine , comprising:an in-cylinder pressure sensor which is provided in a predetermined cylinder of the internal combustion engine;a crank angle sensor which outputs a signal in accordance with a crank angle of the internal combustion engine;maximum in-cylinder pressure crank angle acquisition means for, at a time of motoring or a time of a fuel-cut operation of the internal combustion engine, using the crank angle sensor to acquire a maximum in-cylinder pressure crank angle at a time point at which a maximum in-cylinder pressure is detected by the in-cylinder pressure sensor; andcorrection means for correcting a relation between a signal of the crank angle sensor and a crank angle corresponding to the signal so that the maximum in-cylinder pressure crank angle becomes a TDC;wherein the correction means includes retardation correction means for, in a case where engine speed of the internal combustion engine is equal to or less than a predetermined value, correcting the maximum in-cylinder pressure crank angle used by the correction means to a value on a retardation side.2. The in-cylinder pressure detection device for ...

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Номер записи: 100