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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 14304. Отображено 100.
05-01-2012 дата публикации

Centrifugal pump apparatus

Номер: US20120003108A1
Принадлежит: NTN Corp, Terumo Corp

A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, first and second permanent magnets provided in one surface and the other surface of the impeller respectively, a third permanent magnet provided in an inner wall of the blood chamber, and a magnetic element and a coil for driving the impeller to rotate with a diaphragm being interposed. First and second grooves for hydrodynamic bearing different in shape and depth from each other are formed in the inner wall of the blood chamber facing the impeller, and third and fourth grooves for hydrodynamic bearing different in shape and depth from each other are formed in the diaphragm facing the impeller. The second and fourth grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller is activated to rotate, while the first and third grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller steadily rotates.

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27-04-2006 дата публикации

Емкость для жидкости

Номер: RU0000052685U1

Полезная модель относится к емкостям для жидкостей, а именно к вращающимся емкостям. Техническим результатом при использовании полезной модели является обеспечение перемешивания жидкости в емкости путем вращения емкости вокруг ее вертикальной оси на горизонтальной плоскости. Емкость для жидкости состоит из боковых стенок 1 и дна 2. Наружная поверхность дна 2 снабжена элементом 3 для вращения емкости вокруг своей вертикальной оси. Элемент 3 выполнен или в виде полусферы или в виде конуса и расположен в центре пересечения осей симметрии дна емкости. Поверхность, в которой расположена верхняя кромка стенок емкости, выполнена параллельной к горизонтальной плоскости. ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 52 685 (13) U1 (51) ÌÏÊ A47G 19/22 A47G 23/02 (2006.01) (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÏÎËÅÇÍÎÉ ÌÎÄÅËÈ Ê ÏÀÒÅÍÒÓ(òèòóëüíûé ëèñò) (21), (22) Çà âêà: 2005139736/22, 20.12.2005 (72) Àâòîð(û): Áóøêîâñêèé Åâãåíèé Âëàäèìèðîâè÷ (RU) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 20.12.2005 (73) Ïàòåíòîîáëàäàòåëü(è): Áóøêîâñêèé Åâãåíèé Âëàäèìèðîâè÷ (RU) (45) Îïóáëèêîâàíî: 27.04.2006 Áþë. ¹ 12 R U Àäðåñ äë ïåðåïèñêè: 105082, Ìîñêâà, à/ 111, ÎÎÎ Þðèäè÷åñêà ôèðìà "Ëàáçèí è ïàðòíåðû", Ñ.Ì. Ëîìñêîìó (54) ÅÌÊÎÑÒÜ ÄËß ÆÈÄÊÎÑÒÈ R U 5 2 6 8 5 U 1 U 1 Ñòðàíèöà: 1 RU 5 2 6 8 5 (57) Ôîðìóëà ïîëåçíîé ìîäåëè Åìêîñòü äë æèäêîñòè, âêëþ÷àþùà áîêîâûå ñòåíêè è äíî, ïðè ýòîì íàðóæíà ïîâåðõíîñòü äíà åìêîñòè ñíàáæåíà ýëåìåíòîì äë âðàùåíè åìêîñòè, âûïîëíåííûì â âèäå ïîëóñôåðû èëè êîíóñà, êîòîðûé ðàñïîëîæåí â öåíòðå ïåðåñå÷åíè öåíòðàëüíûõ îñåé, îòëè÷àþùà ñ òåì, ÷òî ïëîñêîñòü âåðõíåé êðîìêè ñòåíîê åìêîñòè âûïîëíåíà ïàðàëëåëüíîé ê ãîðèçîíòàëüíîé ïëîñêîñòè.

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28-11-2018 дата публикации

Осевой лепестковый газодинамический подшипник

Номер: RU0000185245U1

Полезная модель относится к машиностроению, в частности к подшипникам скольжения с жидкостной и газовой смазкой, используемым в опорах роторов высокоскоростных турбомашин различного назначения. Осевой лепестковый газодинамический подшипник содержит упорный диск 2, корпус 1. Между диском 2 и корпусом 1 расположена плата 3. Между платой 3 и упорным диском 2 расположены гибкие лепестки 4 из тонкой металлической ленты, поддерживающие упорный диск 2. Лепестки 4 закреплены возле заднего края платы 3 через опорные элементы 5. Между каждым лепестком 4 и платой 3 расположено не менее двух листовых пружин 8, поддерживающих лепесток 4. Часть лепестка со стороны переднего края 12 имеет в недеформированном состоянии дугообразный профиль в окружном направлении. Профилированная часть лепестка составляет не меньше двух третей длины лепестка. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 185 245 U1 (51) МПК F16C 17/02 (2006.01) F16C 27/02 (2006.01) F16C 32/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F16C 17/02 (2018.08); F16C 27/02 (2018.08); F16C 32/06 (2018.08) (21)(22) Заявка: 2018133425, 21.09.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 21.09.2018 (45) Опубликовано: 28.11.2018 Бюл. № 34 2137954 C1, 20.09.1999. RU 2204064 C2, 27.11.2002. RU 2496032 C2, 20.10.2013. US 5248205 A, 28.09.1993. (54) Осевой лепестковый газодинамический подшипник (57) Реферат: Полезная модель относится к упорный диск 2. Лепестки 4 закреплены возле машиностроению, в частности к подшипникам заднего края платы 3 через опорные элементы 5. скольжения с жидкостной и газовой смазкой, Между каждым лепестком 4 и платой 3 используемым в опорах роторов расположено не менее двух листовых пружин 8, высокоскоростных турбомашин различного поддерживающих лепесток 4. Часть лепестка со назначения. Осевой лепестковый стороны переднего края 12 имеет в газодинамический подшипник содержит упорный ...

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11-12-2018 дата публикации

Адаптивное устройство-демпфер

Номер: RU0000185576U1

Полезная модель относится к машиностроению. Адаптивное устройство-демпфер выполнен с возможностью демпфирования осевых колебаний быстровращающихся валов в виде осевого демпфера с пассивным регулятором, выполняющего функцию магнитной опоры, осевой демпфер образован из двух упругих частей с контактирующими коническими поверхностями, взаимодействующими между собой с помощью расположенных на них магнитных вставок при осевых колебаниях вращающегося вала, при этом в одной части конической поверхностью образован вогнутый конус, в другой части конической поверхностью образован выпуклый конус, причем вогнутый конус выполнен с меньшим углом конусности, упругая часть с вогнутым конусом установлена на валу с возможностью вращения, а упругая часть с выпуклым конусом снабжена жестким подпятником и установлена с возможностью осевого перемещения на валу совместно с подпятником, на поверхности вогнутого конуса выполнены концентрично расположенные кольцевые канавки, в которых утоплены магнитные вставки в шахматном порядке и на одинаковом расстоянии от вогнутой конической поверхности, а в упругой части с выпуклым конусом установлены выступающие над контактирующей поверхностью магнитные вставки, образующие концентричные ряды с расположением магнитных вставок в шахматном порядке для обеспечения ступенчатого взаимодействия с магнитными вставками, утопленными в соответствующих кольцевых канавках упругой части с вогнутым конусом, причем магнитные вставки в упругих частях установлены с расположением одноименных полюсов навстречу друг другу. Технический результат заключается в упрощении конструкции за счет пассивного регулирования управлением устройства и в расширении арсенала технических средств для гашения колебаний в быстровращающихся роторах. 3 з.п. ф-лы, 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 185 576 U1 (51) МПК F16C 17/02 (2006.01) F16C 31/04 (2006.01) F16C 31/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F16C ...

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16-01-2019 дата публикации

Радиальный подшипник скольжения с управляемыми вкладышами на гидростатическом подвесе

Номер: RU0000186364U1

Полезная модель относится к области машиностроения, в частности к радиальным сегментным подшипникам и может быть использована в конструкциях газовых и паровых турбин, компрессоров и насосов. Радиальный подшипник скольжения комплектуется сегментами, отделенными от внутренней поверхности корпуса самогенерирующимся гидростатическим слоем смазки, формируемым за счет отбора части расхода гидродинамического слоя через радиальное отверстие, выполненное в центральной части рабочей поверхности каждого из вкладышей. Для маслоснабжения гидродинамического слоя возле входной кромки каждого вкладыша выполнены распределительные канавки, соединенные через сквозные каналы в сегменте и кольцевой коллектор в корпусе подшипника с системой смазки опорного узла. Регулирование положения вкладышей в зазоре подшипника осуществляется посредством пьезоактуаторов, установленных на упорах выходных кромок сегментов и позволяющих изменять угол поворота каждого сегмента в поперечном направлении. Технический результат применения полезной модели заключается в повышении несущей способности и виброустойчивости подшипника за счет снижения торцевого расхода смазки и увеличения жесткости гидродинамического слоя регулируемой клиновидности при одновременном улучшении демпфирующих свойств опорного узла вследствие интенсификации маслоснабжения гидростатического слоя с пониженными гидравлическими сопротивлениями щелевых каналов на внешней стороне вкладышей. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 186 364 U1 (51) МПК F16C 17/03 (2006.01) F16C 32/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F16C 17/03 (2018.08); F16C 32/06 (2018.08) (21)(22) Заявка: 2018127072, 23.07.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 16.01.2019 (45) Опубликовано: 16.01.2019 Бюл. № 2 Адрес для переписки: 299028, г. Севастополь, ул. Дыбенко, 1А, начальник ЧВВМУ имени П.С. Нахимова (для ООНР И ПНПК) (56) Список документов, цитированных в ...

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26-01-2012 дата публикации

Compliant Bearing

Номер: US20120020595A1
Автор: Jongsoo Kim
Принадлежит: Jongsoo Kim

A first embodiment of a compliant bearing includes a main body and a bearing surface. The main body and the bearing surface may be engaged with one another via one or more bearing surface springs configured such that the bearing surface is compliant with respect to the main body. A second embodiment of a compliant bearing includes a main body and at least one bearing pad. The main body and the bearing pad may be engaged with one another via one or more pad radial and/or pad axial springs configured such that the bearing pad is compliant with respect to the main body. A sensor web may be integrated into the compliant bearing. In one embodiment the sensor web comprises at least one sensor configured as a strain gauge and affixed to a bearing surface spring.

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02-02-2012 дата публикации

Journal air bearing

Номер: US20120027327A1
Принадлежит: Hamilton Sundstrand Corp

An example journal air bearing for a rotatable shaft of an air cycle machine includes a top foil configured to receive a rotatable shaft, and an intermediate foil radially outboard the top foil. A journal sleeve is radially outboard the intermediate foil. The top foil and the intermediate foil establish apertures configured to communicate fluid between a first position radially inboard the top foil and a second position radially outboard the intermediate foil.

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22-03-2012 дата публикации

Bush bearing

Номер: US20120070109A1
Принадлежит: Oiles Corp

A bush bearing ( 1 ) is a wrapped bush bearing which has a cylindrical inner peripheral surface ( 2 ) serving as a sliding surface as well as an outer peripheral surface ( 3 ), and whose abutting faces ( 4 ) are abutted against each other. The outer peripheral surface ( 3 ) includes a cylindrical surface ( 11 ); a tapered surface ( 13 ) interposed between the cylindrical surface ( 11 ) and one annular end face ( 12 ) in an axial direction X and formed by roll forming; a smooth circular arc surface ( 14 ) interposed between the tapered surface ( 13 ) and the cylindrical surface ( 11 ); and a smooth circular arc surface ( 15 ) interposed between the tapered surface ( 13 ) and the end face ( 12 ).

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29-03-2012 дата публикации

Fluid bearing device

Номер: US20120073138A1
Автор: Kenji Ito
Принадлежит: Individual

Disclosed is a fluid bearing device in which a high adhesive strength is ensured in fixing another member by adhesion to a resin housing. A bearing sleeve is secured in position inside the resin housing, and a shaft member is radially supported in a non-contact fashion by a dynamic pressure action of lubricant generated in a radial bearing clearance between the shaft member and the bearing sleeve. A metal bracket for mounting the stator coil of a motor is fixed by adhesion to the outer periphery of the housing, in which the adhesion portion of the outer periphery of the housing to be fixed to the bracket is roughened, setting the surface roughness to 0.5 μmRa to 2.0 μmRa.

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03-05-2012 дата публикации

Spindle motor

Номер: US20120104889A1
Принадлежит: Samsung Electro Mechanics Co Ltd

There is provided a spindle motor including: a sleeve including a hollow part having a shaft inserted thereinto and rotatably supporting the shaft; a thrust plate coupled to a lower portion of the shaft in an axial direction to thereby rotate together with the shaft; a cover plate coupled to a lower portion of the sleeve in the axial direction and covering the hollow part; and a step part stepped upwardly from a lower surface of the thrust plate in the axial direction so that the shaft and the thrust plate are easily coupled to each other and having surface roughness greater than that of other portions of the thrust plate.

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17-05-2012 дата публикации

Anisotropic bearing supports for turbochargers

Номер: US20120121446A1
Принадлежит: Honeywell International Inc

An exemplary anisotropic member supports a semi-floating bearing in a bore and can reduce non-synchronous vibration of the bearing in the bore. An anisotropic member can include an annular body configured to receive a semi-floating bearing and to space the bearing a distance from a bore surface and can be configured to impart anisotropic stiffness and damping terms to the semi-floating bearing when positioned in the bore. Such a member is suitable for use in a rotating assembly for a turbocharger where the bearing may be a semi-floating bearing. Various exemplary members, bearings, housings, assemblies, etc., are disclosed.

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17-05-2012 дата публикации

Support of propeller unit for a vessel

Номер: US20120122356A1
Автор: Gunnar Johnsen
Принадлежит: Rolls Royce Marine As

The present invention relates to a rim driven propeller unit for a vessel, where a number of permanent magnets ( 4 ) are arranged round the propeller unit's rotatable rotor housing ( 1 ), comprising a number of propeller blades ( 3 ), and a number of permanent magnets round the propeller unit's external, stationary casing ( 2 ) housing the rotatable rotor housing, where the permanent magnets round parts of the rotatable rotor housing and the external, stationary casing's circumference are provided located above one another with like polarity, while other parts of the rotatable rotor for housing and the external, stationary casing are provided located facing one another with opposite polarity, whereby the rotor housing and the stationary casing are repelled by and attracted to one another respectively, thereby being prevented from coming into contact with one another.

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14-06-2012 дата публикации

Sliding support structure for shaft member

Номер: US20120148180A1
Принадлежит: Taiho Kogyo Co Ltd, Toyota Motor Corp

A sliding support structure includes: a support member ( 12; 106 ) and a shaft member ( 10; 120 ) that relatively rotates with respect to the support member ( 12;106 ) wherein lubricating oil is supplied to between a sliding surface of the shaft member and a sliding surface of the support member, the support member ( 12; 106 ) has a sliding surface portion (x) that corresponds to a load concentrating portion between the shaft member ( 10; 120 ) and the support member ( 12; 106 ), and sliding surface regions (Ya, Yb) that are higher in oil repellency than the sliding surface portion are respectively provided on upstream and downstream sides of the sliding surface portion in a flow direction of the lubricating oil.

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12-07-2012 дата публикации

Camshaft apparatus

Номер: US20120174882A1
Принадлежит: JTEKT Corp

Among a plurality of bearings that rotatably support a camshaft ( 1 ), the bearing closest to a pulley (P) is a rolling bearing ( 4 ), and the other bearings are plain bearings ( 3 ). The rolling bearing ( 4 ) is formed of a roller bearing portion ( 5 ) that has a first outer ring raceway surface ( 51 ) and a plurality of cylindrical rollers ( 53 ) that roll on the first outer ring raceway surface ( 51 ) and a ball bearing portion ( 6 ) that is arranged next to the roller bearing portion ( 5 ) in an axial direction and that has a second outer ring raceway surface ( 61 ) and a plurality of balls ( 63 ) that roll on the second outer ring raceway surface ( 61 ). The first outer ring raceway surface ( 51 ) and the second outer ring raceway surface ( 61 ) are formed on the inner peripheral surface ( 7 a) of a single outer ring ( 7 ).

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12-07-2012 дата публикации

Planet bearing structure

Номер: US20120177311A1
Принадлежит: Mitsubishi Heavy Industries Ltd

Provided is a planet bearing structure for a wind turbine generator, capable of reducing the risk of causing seizure or wear in a planet bearing of the wind turbine generator in which a slide bearing is used in a bearing portion, by improving and stabilizing formation of an oil film on a sliding surface having division surfaces. In a planet bearing structure that includes a slide bearing ( 50 A) attached on the inner circumferential surface of a shaft hole of a planet gear constituting a gearbox, and in which the slide bearing ( 50 A) rotates about a planet pin that is secured to a carrier, together with the planet gear, the sliding surface of the slide bearing ( 50 A) has one or more division lines (La) that are formed by axis-wise joint surfaces and that intersect with the rotational direction, and the division lines (La) are formed in an inclined state with respect to the axial direction.

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30-08-2012 дата публикации

Hydrodynamic bearing assembly and motor including the same

Номер: US20120217832A1
Автор: Won Ki Park, Young Tae Kim
Принадлежит: Samsung Electro Mechanics Co Ltd

Disclosed herein are a hydrodynamic bearing assembly and a motor including the same. The hydrodynamic bearing assembly includes: a sleeve supporting a shaft; and a sleeve housing combined with the sleeve to prevent the leakage of oil; and at least one stepped part formed on at least one of the sleeve and the sleeve housing in order to align an axis of the sleeve with an axis of the shaft and provide a bonding space with the sleeve therebetween.

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27-09-2012 дата публикации

Polycrystalline diamond, polycrystalline diamond compacts, methods of making same, and applications

Номер: US20120241226A1
Принадлежит: US Synthetic Corp

Embodiments of the invention relate to polycrystalline diamond compacts (“PDC”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, a PDC includes a polycrystalline diamond (“PCD”) table bonded to a substrate. At least a portion of the PCD table includes a plurality of diamond grains defining a plurality of interstitial regions. The plurality of interstitial regions includes a metal-solvent catalyst. The plurality of diamond grains exhibit an average grain size of about 30 μm or less. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit an average electrical conductivity of less than about 1200 S/m. Other embodiments are directed to PCD, employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

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11-10-2012 дата публикации

Runner with integral impellor pump

Номер: US20120257998A1
Принадлежит: Baker Hughes Inc

In aspects, the present disclosure provides an apparatus for handling axial thrust in rotating equipment. The apparatus may include a thrust bearing and a runner having a contact surface engaging the thrust bearing. The runner may include passages extending between the contact surface and an opposing surface of the runner. The apparatus may further include a lock ring assembly that has channels in communication with the passages of the runner. In certain embodiments, one or more cavities may be formed on the contact surface of the runner. The cavities may be in communication with the internal passages of the runner. In aspects, the present disclosure provides a method for handling axial thrust in a pump assembly. The pump assembly may include a thrust bearing assembly that may include a runner having a contact surface engaging a thrust bearing pad. The method may include flowing a lubricating fluid to the contact surface using at least one internal passage formed in runner.

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18-10-2012 дата публикации

Polycrystalline diamond compacts including at least one transition layer and methods for stress management in polycrsystalline diamond compacts

Номер: US20120261197A1
Принадлежит: US Synthetic Corp

Embodiments relate to polycrystalline diamond compacts (“PDCs”) that are less susceptible to liquid metal embrittlement damage due to the use of at least one transition layer between a polycrystalline diamond (“PCD”) layer and a substrate. In an embodiment, a PDC includes a PCD layer, a cemented carbide substrate, and at least one transition layer bonded to the substrate and the PCD layer. The at least one transition layer is formulated with a coefficient of thermal expansion (“CTE”) that is less than a CTE of the substrate and greater than a CTE of the PCD layer. At least a portion of the PCD layer includes diamond grains defining interstitial regions and a metal-solvent catalyst occupying at least a portion of the interstitial regions. The diamond grains and the catalyst collectively exhibit a coercivity of about 115 Oersteds or more and a specific magnetic saturation of about 15 Gauss·cm 3 /grams or less.

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18-10-2012 дата публикации

Sliding bearing structure for a shaft member

Номер: US20120263403A1
Принадлежит: Taiho Kogyo Co Ltd, Toyota Motor Corp

A sliding bearing structure for a shaft member includes: a shaft member; a bearing member rotates relative to the shaft member; an oil supply space to which lubrication is supplied between sliding surfaces of the shaft member and the bearing member; two annular grooves formed in a circumferential direction in an inner peripheral surface of the bearing member; and two annular seal members formed as separate pieces from the shaft member and the bearing member, and arranged in the annular grooves between the shaft member and the bearing member. Each annular seal member is formed in plural, and is made of material having a thermal expansion coefficient such that an inside diameter of the annular seal member is smaller than an inside diameter of the bearing member at a low temperature, and is the same as or larger than the inside diameter of the bearing member at a high temperature.

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08-11-2012 дата публикации

Foil thrust bearing applicable to high speed machining center

Номер: US20120281936A1
Принадлежит: Individual

A foil thrust bearing applicable to high speed machining and grinding machines for machining microscopic features. Top foil segments are circumferentially spaced relative to a rotating runner for engagement by the runner when the bearing is mounted to bearingly support runner rotation. Bump foil segments underlie and support and engage the top foil segments respectively. A thrust plate supports and engages the bump foil segments. Each top foil segment and each bump foil segment is secured only along an edge portion which is trailing relative to the runner rotation leaving an edge which is leading relative to runner rotation and a pair of side edges unsecured. Each bump foil segment includes tabs separated by slots extending from the leading edge at least partially to the secured edge portion. Each bump foil tab has substantially parallel ridges separated by flats.

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15-11-2012 дата публикации

Bearing Assembly

Номер: US20120285748A1
Автор: Kennedy J. Kirkhope
Принадлежит: Halliburton Energy Services Inc

A bearing assembly for use in an apparatus having a housing and a shaft which is rotatably connected with the housing. A shaft extension extends from the interior of the housing at a first housing end. The shaft extension defines a first bearing shaft surface. The bearing assembly includes a first thrust bearing for transferring a first axial load between the shaft and the housing. The first thrust bearing is located axially between the first housing end and the first bearing shaft surface.

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06-12-2012 дата публикации

Vertical agitator for wastewater received in a sedimentation tank

Номер: US20120307587A1
Автор: Marcus Hoefken
Принадлежит: Invent Umwelt und Verfahrenstechnik AG

The invention relates to a vertical agitator for wastewater and the like received in a sedimentation tank, wherein an agitator tool ( 5 ) is mounted on a drive shaft ( 4 ) extending vertically from a drive ( 1 ) mounted above a tank floor ( 2 ), wherein a free end (E 2 ) of a shaft section ( 7 ) extending from the agitator tool ( 5 ) in the direction of the tank floor ( 2 ) is held in a safety bearing ( 14 ), wherein the safety bearing ( 14 ) is held in a retaining device ( 8 ) supported on the tank floor ( 2 ), wherein the retaining device ( 8 ) comprises a receiving section ( 9 ) for a receiving device ( 12 ) receiving the safety bearing ( 14 ). In order to simplify installation, the invention proposes that the receiving section ( 9 ) comprises a recess ( 11 ) opening in a substantially horizontal direction for laterally inserting the shaft section ( 7 ).

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13-12-2012 дата публикации

Thrust bearing assembly

Номер: US20120313471A1
Принадлежит: Johnson Electric SA

A thrust bearing assembly for supporting an end surface against an axial load, includes a first part with a chamber; a second part disposed in the chamber and having a load surface facing the end surface; and a third part fixed with the first part and spaced from the second part. A reservoir for storing lubricant is formed in the chamber between the second part and third part. A narrow passage communicates the reservoir with the load surface to allow the lubricant to flow from the reservoir to the load surface to lubricate the interface between the load surface and the end surface when the axial load rotates.

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10-01-2013 дата публикации

Hydrodynamic bearing intended to support a cylinder driven in rotation about its axis

Номер: US20130012111A1
Автор: Eric Romero
Принадлежит: Fives FCB SA

A hydrodynamic bearing for supporting a hollow cylinder that may be deformable in the radial direction, driven in a rotational movement about its axis, the diameter being greater than or equal to one meter, the bearing essentially consisting of a bushing and a bushing support, and in which the bushing, notably of constant thickness, extends over a portion of cylinder of axis δ, having a guide surface, intended to follow the exterior surface of the cylinder via a film of lubricant, and a surface secured to the bushing support. The bushing support has, if appropriate locally, at least in the region of an intermediate zone of the bearing, cross-section-reducing elements allowing elastic deformation of the bearing so as to limit the maximum value of the guide forces over the bushing. The bearing is useful in supporting and guiding a rotating hollow grinder subjected to unevenly distributed forces during rotation.

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21-02-2013 дата публикации

Polycrystalline diamond compact including a carbonate-catalyzed polycrystalline diamond table and applications therefor

Номер: US20130043078A1
Принадлежит: US Synthetic Corp

In an embodiment, a polycrystalline diamond compact includes a substrate and a preformed polycrystalline diamond table bonded to the substrate. The table includes bonded diamond grains defining interstitial regions. The table includes an upper surface, a back surface bonded to the substrate, and at least one lateral surface extending therebetween. The table includes a first region extending inwardly from the upper surface and the lateral surface. The first region exhibits a first interstitial region concentration and includes at least one interstitial constituent disposed therein, which may be present in at least a residual amount and includes at least one metal carbonate and/or at least one metal oxide. The table includes a second bonding region adjacent to the substrate that extends inwardly from the back surface. The second bonding region exhibits a second interstitial region concentration that is greater than the first interstitial region concentration and includes a metallic infiltrant therein.

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28-02-2013 дата публикации

Lubrication of screw machines

Номер: US20130052072A1
Принадлежит: City University of London

A screw machine for use with a working fluid with a liquid phase present comprises rotors having meshed, lubricated helical formations. The rotors have an ‘N’ profile as disclosed in WO 97/43550. In use, lubrication of the helical formations of the rotors and optionally of the rotor bearings is achieved substantially exclusively with the liquid phase of the working fluid.

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28-02-2013 дата публикации

Journal bearing for use in epicyclical gearbox and method of facilitating hydrodynamic oil flow in the journal bearing

Номер: US20130053202A1
Принадлежит: General Electric Co

A journal bearing for use in an epicyclical gearbox including a non-circular shaped journal pin and a journal bearing body into which the non-circular shaped journal pin is disposed. The non-circular shaped journal pin configured to mimic the shape of the non-cylindrical shaped journal bearing body at least at a high pressure point exerted upon the non-cylindrical shaped journal bearing body during a high pressure event, thereby permitting a free flow of a lubricating fluid there between the non-circular shaped journal pin and the journal bearing body during the high pressure event. An epicyclical gearbox including the journal bearing and method of facilitating a hydrodynamic oil flow in the planet gear journal bearing.

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04-04-2013 дата публикации

Hybrid hydrodynamic and hydrostatic bearing bushing and lubrication system for rolling mill

Номер: US20130081438A1
Принадлежит: Siemens Industry Inc

Rolling mill bearings incorporate bearing bushings with pluralities of hydrostatic pad recesses, that are preferably in conjunction hydrodynamic bearings also formed within the bushing. Each recess has an isolated lubricant passage that is adapted for coupling to a separate isolated source of pressurized lubricant. In some embodiments herein, the isolated pressurized lubricant source is supplied by a dedicated outlet of a pressure pump. In this manner each hydrostatic pad recess has a dedicated pressurized lubricant supply that is not interrupted by loss of lubricant pressure events in other bearing pads or elsewhere within the rolling mill lubrication system.

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02-05-2013 дата публикации

Oil-impregnated sintered bearing and method of producing the same

Номер: US20130104400A1
Принадлежит: Diamet Corp

An oil-impregnated sintered which does not damage rotating shaft and itself and has a high durability even in the case that the rotating shaft is inclined in the bearing by a large shear load applied thereto, and a method of manufacturing an oil-impregnated sintered bearing which exhibits center deviation-suppressing action of the bearing satisfactorily by accurately forming a bearing hole in an intermediate completely sintered are disclosed.

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06-06-2013 дата публикации

THRUST SLIDING BEARING

Номер: US20130142462A1
Принадлежит: OILES CORPORATION

A thrust sliding bearing includes: a synthetic resin-made upper casing a synthetic resin-made lower casing which is superposed on the upper casing so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing a synthetic resin-made thrust sliding bearing piece disposed in an annular space between the upper casing and the lower casing and a synthetic resin-made seal member for sealing respective other end portions, communicating with the outside, of a gap on an inner peripheral side and a gap on an outer peripheral side in a radial direction A between the upper casing and the lower casing the gap and the gap respectively communicating with the annular space at their one annular end portions. 1. A thrust sliding bearing comprising: a synthetic resin-made upper casing integrally including an annular upper casing base portion having an annular lower surface in an axial direction , an inner peripheral-side suspended cylindrical portion suspended from a radial inner peripheral end portion of the annular lower surface of the upper casing base portion , and an outer peripheral-side suspended cylindrical portion suspended from a radial outer peripheral end portion of the annular lower surface of the upper casing base portion; a synthetic resin-made lower casing integrally including an annular lower casing base portion having an annular upper surface in the axial direction and superposed on said upper casing so as to be rotatable about an axis relative to said upper casing and an annular protrusion protruding from the annular upper surface of the lower casing base portion toward the annular lower surface of the upper casing base portion; a synthetic resin-made thrust sliding bearing piece disposed in an annular space between the annular lower surface of the upper casing base portion and the annular upper surface of the lower casing base portion , so as to be brought at an axial annular upper surface and a radial cylindrical inner ...

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06-06-2013 дата публикации

PAD-TYPE THRUST BEARING AND ROTARY MACHINE COMPRISING SUCH A THRUST BEARING

Номер: US20130142466A1
Автор: MELET Luc
Принадлежит: Alstom Hydro France

The present invention relates to a pad-type thrust bearing in which each pad rests on a volume of liquid enclosed in a cavity connected to adjacent cavities by ducts. The thrust bearing comprises a number of convex casings each on its own delimiting a cavity and which are connected to one another by ducts. The convex casings and the ducts together form a hollow functional subassembly which is separate from the other constituent components of the thrust bearing and which delimits a liquid-filled closed volume. According to the invention, each casing comprises two half-shells positioned one on each side of a flexible bladder and each duct comprises a flexible hose inserted in a sheath. 14466462. Pad-type thrust bearing in which each pad rests on a volume of liquid enclosed in a cavity connected to adjacent cavities by ducts , the thrust bearing comprising several convex casings each delimiting on its own a cavity and connected to one another by ducts , the convex casings and the ducts together forming a hollow functional subassembly which is separate from the other constituent components of the thrust bearing and which delimits a closed volume filled by the liquid , characterised in that each casing comprises two half-shells positioned one on each side of a flexible bladder () and in that each duct () comprises a flexible hose () inserted in a sheath ().2. Pad-type thrust bearing according to claim 1 , wherein the half-shells and the sheaths are made of steel.3. Pad-type thrust bearing according to claim 1 , whererin the bladders and the flexible hoses are made of elastomer.4. Pad-type thrust bearing according to claim 1 , wherein the two ends of the functional subassembly are not connected together.5. Pad-type thrust bearing according to claim 1 , wherein it is provided with a sensor which measures the pressure of the liquid in the enclosed volume.6. Pad-type thrust bearing according to claim 4 , wherein it is provided with a sensor which measures the pressure of the ...

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20-06-2013 дата публикации

Clip-fastened raceway for a variable compression ratio engine

Номер: US20130156356A1
Принадлежит: MCE5 Development SA

A clip-fastened raceway for a variable compression ratio engine includes: at least one curved segment whose outer surface cooperates with a raceway housed in the transmission member or in the control member of the variable compression ratio engine and whose inner surface is maintained in contact with a curved outer surface housed in the toothed wheel of the engine; at least one clip, housed in at least one of the ends of the curved segment and fastened to one or the other of the ends of the curved outer surface housed in the toothed wheel and hooking onto a hook or protrusion which the wheel includes in the vicinity of the end of its curved outer surface, the hook or protrusion being complementary to that of the clip so as to be able to cooperate with the latter.

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20-06-2013 дата публикации

BEARING ASSEMBLIES, APPARATUSES, AND MOTOR ASSEMBLIES USING THE SAME

Номер: US20130156357A1
Принадлежит: US SYNTHETIC CORPORATION

Bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, a bearing assembly may include a plurality of superhard bearing elements distributed circumferentially about an axis. Each of the superhard bearing elements may include a bearing surface. At least one of the plurality of superhard bearing elements may include at least one texture feature that may be formed in a lateral surface thereof. The bearing assembly may also include a support ring that carries the superhard bearing elements. 1. A bearing assembly , comprising:a plurality of superhard bearing elements distributed circumferentially about an axis, each of the plurality of superhard bearing elements including a bearing surface, at least one of the plurality of superhard bearing elements including at least one texture feature formed in a lateral surface thereof; anda support ring that carries the plurality of superhard bearing elements.2. The bearing assembly of claim 1 , wherein the at least one texture feature is positioned and configured to direct lubricating fluid over and/or around one or more of the plurality of superhard bearing elements.3. The bearing assembly of claim 1 , wherein the at least one texture feature is effective to increase a surface area of the at least one of the plurality of superhard bearing elements in contact with lubricating fluid.4. The bearing assembly of claim 1 , wherein the at least one texture feature extends between the bearing surface of the at least one of the plurality of superhard bearing elements and a location positioned between an upper surface of the support ring and a bottom surface of the at least one of the plurality of superhard bearing elements.5. The bearing assembly of claim 1 , wherein the at least one texture feature follows a path substantially extending between the bearing surface of the at least one of superhard bearing elements and a bottom surface of the at least one of the plurality of superhard bearing ...

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18-07-2013 дата публикации

BEARING ELEMENTS, BEARING ASSEMBLIES, AND RELATED METHODS

Номер: US20130182980A1
Принадлежит: US SYNTHETIC CORPORATION

Bearing components, bearing assemblies and related methods are provided. In one embodiment, a bearing element includes a base layer and a polycrystalline diamond (PCD) layer comprising a plurality of PCD elements coupled with the base layer wherein each PCD element comprising a substrate and a diamond table. The plurality of PCD elements may be fit together to form a substantially continuous bearing surface. For example, the diamond tables may exhibit substantially square or rectangular geometries that are fit together to define the bearing surface. In other embodiments, the bearing elements may be spaced apart from one another. In other embodiments, the bearing element may include a single PCD element formed from a prefabricated PCD compact or cutting tool blank. Various bearing assemblies may incorporate such a bearing element including, for example, thrust bearings, journal bearings, and tilting pad bearing assemblies. 1. A bearing assembly comprising:a first tilting pad bearing assembly comprising a body and plurality of tilting pad bearings, each tilting pad bearing comprising a polycrystalline diamond (PCD) layer attached to a base layer, the plurality of tilting pad bearings being circumferentially spaced about the body and defining a first collective bearing surface;a runner bearing comprising a PCD layer comprising a plurality of PCD elements coupled to a base layer defining a second collective bearing surface;wherein the first tilting pad bearing assembly and the runner bearing are positioned and configured to move relative to each other with the first collective bearing surface being in contact with the second collective bearing surface.2. The bearing assembly of claim 1 , wherein each of the plurality PCD elements of the runner bearing is contiguous with an adjacent one of the plurality of PCD elements to define a substantially continuous surface.3. The bearing assembly of claim 2 , wherein each of the PCD elements of the runner bearing exhibit an ...

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25-07-2013 дата публикации

BEARING ASSEMBLIES, AND BEARING APPARATUSES USING THE SAME

Номер: US20130186691A1
Принадлежит: US SYNTHETIC CORPORATION

Various embodiments relate to bearing assemblies configured to enable removal and replacement of superhard bearing elements, and bearing apparatuses that may utilize such bearing assemblies. The disclosed bearing assemblies may be used in a number of applications, such as downhole motors in subterranean drilling systems, directional drilling systems, roller-cone drill bits, and many other applications. In an embodiment, a bearing assembly includes a support ring and a retention ring assembled with the support ring. The bearing assembly further includes a plurality of superhard bearing elements. The retention ring and at least a number of the superhard bearing element are collectively configured to restrict displacement of the at least a number of the superhard bearing elements. 1. A bearing assembly , comprising:a support ring;a retention ring assembled with the support ring;a plurality of superhard bearing elements each of which includes a lateral periphery extending between a base and a superhard bearing surface; andwherein the lateral periphery of each of at least a number of the plurality of superhard bearing elements and the retention ring are cooperatively configured to restrict displacement of the at least a number of the plurality of superhard bearing elements away from the support ring, and the base of each of the at least a number of the plurality of superhard bearing elements contacts the support ring.2. The bearing assembly of wherein the support ring defines a channel that receives the plurality of superhard bearing elements.3. The bearing assembly of wherein the lateral periphery includes a shoulder that restricts displacement away from the support ring.4. The bearing assembly of wherein the retention ring extends about a portion of the lateral periphery of the plurality of superhard bearing elements.5. The bearing assembly of wherein each of the plurality of superhard bearing elements includes a polycrystalline diamond body.6. The bearing assembly of ...

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25-07-2013 дата публикации

Methods of characterizing a component of a polycrystalline diamond compact by at least one magnetic measurement

Номер: US20130187642A1
Принадлежит: US Synthetic Corp

In an embodiment, a method of characterizing a polycrystalline diamond compact is disclosed. The method includes providing the polycrystalline diamond compact, and measuring at least one magnetic characteristic of a component of the polycrystalline diamond compact.

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01-08-2013 дата публикации

TILTING PAD BEARING APPARATUSES AND MOTOR ASSEMBLIES USING THE SAME

Номер: US20130192899A1
Принадлежит: US SYNTHETIC CORPORATION

Embodiments of the invention relate to tilting pad bearing assemblies and apparatuses. The disclosed tilting pad bearing assemblies and apparatuses may be employed in downhole motors of a subterranean drilling system or other mechanical systems. In an embodiment, a bearing assembly or apparatus includes a support ring and a plurality of tilting pads. Each tilting pad is tilted and/or tiltably secured relative to the support ring. In some embodiments, one or more of the tilting pads include a plurality of superhard bearing segments assembled to form a superhard bearing surface. One or more seams may be positioned between adjacent superhard bearing segments of the superhard bearing segments. In other embodiments, one or more of the tilting pads may include at least one or only one superhard bearing segment, such as a polycrystalline diamond bearing segment. 1. A bearing apparatus , comprising:a first bearing assembly including one or more first superhard bearing segments having one or more first superhard bearing surfaces; and a support ring; and', 'a plurality of second superhard bearing segments assembled to form a substantially continuous second superhard bearing surface generally opposing the one or more first superhard bearing surfaces of the first bearing assembly, one or more seams positioned between adjacent second superhard bearing segments of the plurality of second superhard bearing segments.', 'a plurality of tilting pads each of which is tilted and/or tiltably secured relative to the support ring, each of the plurality of tilting pads including], 'a second bearing assembly including2. The bearing apparatus of wherein the plurality of second superhard bearing segments of one of the tilting pads are at least partially interlocked with each other.3. The bearing apparatus of wherein the substantially continuous second superhard bearing surface of one of the tilting pads includes a substantially planar geometry.4. The bearing apparatus of wherein the ...

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22-08-2013 дата публикации

Keyless/grooveless foil bearing with fold over tab

Номер: US20130216167A1
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An improved air foil bearing assembly is disclosed. The air foil bearing assembly includes a bearing housing having an axially extending bore therein and a shaft arranged within the bore for relative coaxial rotation with respect to the bearing housing. The shaft cooperates with the bearing housing to define an annular gap therebetween. A foil assembly is disposed in the annular gap, including at least one foil having at least one laterally extending tab. The tab is adapted to be received in and extend axially from the annular gap and is further adapted to be bent into frictional contact with an outer surface of the bearing housing to militate against axial movement of the foil.

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29-08-2013 дата публикации

IDLER GEAR AND JOURNAL BEARING ASSEMBLY FOR A GENERATOR

Номер: US20130221785A1
Принадлежит: HAMILTON SUNDSTRAND CORPORATION

A journal bearing for a generator idler gear assembly which includes an impregnated carbon body that has an inner diameter and an outer diameter that provides a bearing thickness. The body includes a height, wherein outer diameter to inner diameter provides a first ratio of approximately 1.3-1.5 and the inner diameter to height provides a second ratio of approximately 1.5-1.9. 1. A journal bearing for a generator idler gear assembly comprising:an impregnated carbon body having an inner diameter and an outer diameter providing a bearing thickness, the body including a height, wherein outer diameter to inner diameter provides a first ratio of approximately 1.3-1.5 and the inner diameter to height provides a second ratio of approximately 1.5-1.9.2. The journal bearing according to claim 1 , wherein the carbon body is impregnated with copper.3. The journal bearing according to claim 1 , wherein the inner diameter is approximately 0.6505 inch (16.5227 mm) and the outer diameter is approximately 0.9200 inch (23.3680 mm).4. An end plate for a generator comprising:a wall having a first side with a boss extending from the first side to a terminal end, the boss providing a bore including a seat and a cylindrical surface radially outward of the seat and extending to the terminal end, the wall having a perimeter providing fastening features configured to secure the end plate to a housing portion, the wall providing a lubrication passage in fluid communication with the bore.5. The end plate according to claim 4 , the wall including a second side opposite the first side and including a rib providing the lubrication passage claim 4 , and a connecting feature on the second side configured to receive an external lubrication line and in fluid communication with the bore.6. The end plate according to claim 4 , wherein the fastening features include multiple holes.7. The end plate according to claim 4 , wherein the bore includes a depth of approximately 0.370 inch (9.398 mm).8. The end ...

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12-09-2013 дата публикации

Exhaust-gas turbocharger

Номер: US20130236336A1
Принадлежит: BorgWarner Inc

An exhaust-gas turbocharger ( 1 ) having a compressor ( 2 ) which has a compressor wheel ( 3 ) in a compressor housing ( 4 ); a turbine ( 5 ) which has a turbine wheel ( 6 ) in a turbine housing ( 7 ); a bearing housing ( 8 ) which receives a static bearing bush ( 9 ) for a rotor shaft ( 10 ) and which has, at the compressor side, a bearing housing cover ( 11 ), and a bearing bush rotation prevention means ( 12 ) which has at least one lug ( 13, 14, 15 ) supported in the bearing housing ( 8 ) and which engages into at least one of two grooves ( 16, 17 ) of the bearing bush ( 9 ). The grooves ( 16, 17 ) are arranged diametrically oppositely on an outer circumferential region ( 18 ) of the bearing bush ( 9 ).

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19-09-2013 дата публикации

Torque support for integrated hoisting machine

Номер: US20130243357A1
Принадлежит: SIEMAG TECBERG GmbH

Device for bearing the stator shaft of an integrated hoisting machine, with a pedestal for carrying the hoisting loads and a torque support () for carrying the turning load, wherein the torque support () consists of at least one separate torque block () for each turning direction of the hoisting machine, each having a bearing opening () with a cross section of flat bearing surfaces, angled with respect to each other, for receiving a bearing section of the stator shaft with a corresponding cross section. 1. Device for bearing the stator shaft of an integrated hoisting machine , with a pedestal for carrying the hoisting loads and a torque support for carrying the turning load , wherein the torque support consists of at least one separate torque block for each turning direction of the hoisting machine , each having a bearing opening with a cross section of flat bearing surfaces , angled with respect to each other , for receiving a bearing section of the stator shaft with a corresponding cross section.2. Device according to claim 1 , wherein the dimensions of the bearing opening are larger than the dimensions of the bearing section of the stator shaft to be received therein claim 1 , and that on at least part of the bearing surfaces of the bearing opening pressure elements are provided claim 1 , bridging the gap between the bearing surfaces of the bearing opening and the corresponding bearing surfaces of the bearing section of the stator shaft to be received.3. Device according to claim 1 , wherein the separate torque blocks for each turning direction are provided independently from the pedestal.4. Device according to claim 1 , wherein the torque blocks rest on foundations separate from those of the respective pedestal.5. Device according to claim 1 , wherein the pressure elements are fixed to the bearing surfaces in a removable manner claim 1 , to allow replacement of the pressure elements.6. Device according to claim 1 , wherein the pressure elements are adjustable in ...

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17-10-2013 дата публикации

THRUST SLIDING BEARING AND MOUNTING STRUCTURE OF A STRUT-TYPE SUSPENSION USING THE THRUST SLIDING BEARING

Номер: US20130270790A1
Принадлежит: OILES CORPORATION

A thrust sliding bearing includes a synthetic resin-made lower casing , a synthetic resin-made upper casing superposed on the lower casing , and a synthetic resin-made thrust sliding bearing piece interposed between said upper casing and the lower casing 1. A thrust sliding bearing comprising: a synthetic resin-made lower casing , a synthetic resin-made upper casing superposed on said lower casing , and a synthetic resin-made thrust sliding bearing piece interposed between said upper casing and said lower casing ,wherein said lower casing includes an annular base portion which has an annular upper surface and an annular lower surface, as well as a tubular small-diameter inner surface, a tubular large-diameter inner surface, and a cylindrical outer surface which are arranged between the annular upper surface and the annular lower surface and has a first annular recessed portion provided on the annular upper surface; a small-diameter hole which is defined by the tubular small-diameter inner surface of the annular base portion and is open at the annular lower surface of the annular base portion; a large-diameter hole which is defined by the tubular large-diameter inner surface of the annular base portion and is open at the annular upper surface of the annular base portion; an annular shoulder surface which is continuous from the tubular small-diameter inner surface at its annular inner peripheral end and is continuous from the tubular large-diameter inner surface at its annular outer peripheral end; an annular projecting portion which projects radially outward from a lower end portion of the cylindrical outer surface; a tubular projecting portion which is provided on an annular upper surface of the annular projecting portion and defines a second annular recessed portion by its tubular inner surface in cooperation with the cylindrical outer surface and the annular upper surface of the annular projecting portion; and an annular engaging projecting portion which projects ...

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17-10-2013 дата публикации

BEARING

Номер: US20130272635A1
Принадлежит:

The bearing device is provided with: a support ring positioned around a rotating shaft; and a plurality of bearing pads provided between the rotating shaft and the support ring and configured to support the rotating shaft, wherein some of the plurality of bearing pads are positioned at a lower side of the rotating shaft, and a key member is installed between the support ring and a carrier ring supporting the plurality of bearing pads, wherein the key member is inserted therebetween in a tangential direction of an outer circumference of the carrier ring and is configured to perform positioning of the plurality of bearing pads and the support ring in a radial direction. 1. A bearing device comprising:a support ring positioned around a rotating shaft; anda plurality of bearing pads provided between the rotating shaft and the support ring and configured to support the rotating shaft, whereinsome of the plurality of bearing pads are positioned at a lower side of the rotating shaft, anda key member is installed between the support ring and a carrier ring supporting the plurality of bearing pads, wherein the key member is inserted therebetween in a tangential direction of an outer circumference of the carrier ring and is configured to perform positioning of the plurality of bearing pads and the support ring in a radial direction.2. The bearing device according to claim 1 , whereina face of the key member opposing the carrier ring and the support ring is flat.3. The bearing device according to claim 1 , whereinthe support ring is configured to be dividable at a position lower than a horizontal line which passes through the center of the rotating shaft.4. The bearing device according to claim 2 , whereinthe support ring is configured to be dividable at a position lower than a horizontal line which passes through the center of the rotating shaft.5. The bearing device according to claim 1 , whereinthe key member is placed between the carrier ring and the support ring to ...

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24-10-2013 дата публикации

SLIDING BEARING AND CONSTRUCTION MACHINE PROVIDED WITH SAME

Номер: US20130279835A1

Provided are a novel sliding bearing and a construction machine provided with same, the sliding bearing being capable of maintaining an excellent sliding performance over a long period of time and exhibiting an excellent strength. A sliding bearing () includes at least a brush () and a shaft part (), the shaft part () being provided with a grease feeding pathway () for feeding grease (G) from the exterior to the sliding surfaces of the shaft part () and the bush (), the bush () being formed from a porous sintered metal, and a decomposition catalyst (S) being adhered to the sliding surface of the bush (). 18-. (canceled)9. A sliding bearing comprising:a bush formed from a porous sintered metal;a shaft part inserted in an axial bore of the bush such that the shaft part slides relative to the bush;a grease for lubricating a sliding surface of the shaft part and a sliding surface of the bush;a grease feeding pathway formed in the shaft part for feeding the grease to the sliding surface of the shaft part and the sliding surface of the bush from outside; anda decomposition catalyst provided in the sliding surface of the bush for decomposing the grease to separate a base oil.10. The sliding bearing according to claim 9 , wherein the bush is a porous sintered metal having a porosity of 2-10 Vol %.11. The sliding bearing according to claim 9 , wherein an inorganic fine powder having an oil absorbing property is provided such that the inorganic fine powder adheres to the sliding surface of the bush.12. The sliding bearing according to claim 10 , wherein an inorganic fine powder having an oil absorbing property is provided such that the inorganic fine powder adheres to the sliding surface of the bush.13. The sliding bearing according to claim 11 , wherein the inorganic fine powder consists of sulfur compound particles.14. The sliding bearing according to claim 11 , wherein the inorganic fine powder is a compound of ceramic particles and sulfur compound particles.15. The ...

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31-10-2013 дата публикации

Bearing apparatus and methods

Номер: US20130284459A1

An apparatus including a first housing defining an opening and a bearing housing disposed in the opening so that movement of at least a portion of the bearing housing within the first housing and along a first axis is permitted, the bearing housing defining first and second bearing surfaces, the first and second bearing surfaces being spaced apart along a second axis to prevent movement of the bearing housing within the first housing and along the second axis, the second axis being perpendicular to the first axis.

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07-11-2013 дата публикации

BUSH BEARING

Номер: US20130294714A1
Автор: Nakagawa Noboru
Принадлежит:

A bush bearing includes a bearing body having an inner peripheral surface which is brought into contact with a cylindrical outer peripheral surface of a rotating shaft portion so as to be rotatable in a first direction, a groove provided on an outer peripheral surface of the bearing body so as to extend in the first direction, and an elastic ring fitted on said groove and having a pair of projecting portions and a portion, the pair of projecting portions partially projecting radially outward from the outer peripheral surface of said bearing body in second direction, the portion being provided at positions in the first direction between the pair of projecting portions, and not projecting radially outward from the outer peripheral surface of the bearing body. 1. A bush bearing for rotatably supporting a rotating shaft portion of an end portion of a driving gear which meshes via a meshing portion with a driven gear of a transmission for transmitting the power of an electric motor for steering assistance to a steering mechanism in an electric power steering , comprising:a bearing body having an inner peripheral surface which is brought into contact with a cylindrical outer peripheral surface of said rotating shaft portion so as to be rotatable; groove means provided on an outer peripheral surface of said bearing body so as to extend in a direction about an axis of said rotating shaft portion; and elastic ring means fitted on said groove means and having a pair of projecting portions partially projecting radially outward from the outer peripheral surface of said bearing body at least in a direction which is perpendicular to the axis of said rotating shaft portion and is toward and away from the meshing portion, said elastic ring means having a portion not projecting radially outward from the outer peripheral surface of said bearing body.2. The bush bearing according to claim 1 , wherein said groove means has at least two grooves provided on the outer peripheral surface ...

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14-11-2013 дата публикации

Rudder propeller with an underwater mechanism comprising a planetary gearing

Номер: US20130303038A1
Автор: Manfred Heer
Принадлежит: Schottel GmbH

A rudder propeller with an underwater mechanism including a planetary gearing, the planetary gearing including a sun gear, a fixed internal gear and planetary gears, mounted between the sun gear and the internal gear and running on planetary axles of a planet carrier, wherein the planetary gears are mounted on the planetary axles by hydrodynamic slide bearings.

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21-11-2013 дата публикации

SUPPORTING MECHANISM AND IMAGE FORMING APPARATUS

Номер: US20130308981A1
Принадлежит: FUJI XEROX CO., LTD.

Disclosed is a supporting mechanism including a bearing support portion that supports a bearing and is open so that the bearing is removed in a first direction that crosses a rotating shaft that is supported by the bearing, a driving shaft coupling that transmits a driving force to the rotating shaft by being connected to a rotating shaft coupling that is provided at one end of the rotating shaft, and a contact member that includes a bearing contact portion that makes contact with the bearing. 1. A supporting mechanism comprising:a bearing support portion that supports a bearing and is open so that the bearing is removed in a first direction that crosses a rotating shaft that is supported by the bearing;a driving shaft coupling that transmits a driving force to the rotating shaft by being connected to a rotating shaft coupling that is provided at one end of the rotating shaft; anda contact member that includes a bearing contact portion that makes contact with the bearing, whereinthe bearing contact portion makes contact with the bearing so as to restrict movement of the bearing in the first direction when the contact member is positioned at a first position, and is separated from the bearing so as not to restrict the movement of the bearing in the first direction when the contact member is moved from the first position in a second direction that crosses the rotating shaft, andthe driving shaft coupling is pushed out toward the rotating shaft coupling so as to be connected to the rotating shaft coupling when the contact member is positioned at the first position, and is pulled back so as to be separated from the rotating shaft coupling when the contact member is moved from the first position in the second direction.2. The supporting mechanism according to claim 1 , further comprising:a housing that stores the supporting mechanism and a rotating member having the rotating shaft;an opening and closing portion that is provided so that one surface of the housing is ...

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28-11-2013 дата публикации

BEARING LUBRICANT AND USE THEREOF

Номер: US20130313931A1
Принадлежит: MORESCO CORPORATION

A bearing lubricant of the present invention contains a compound represented by the following general formula: 1. A bearing lubricant , comprising a compound represented by the following general formula (1):{'br': None, 'sub': f', '2f+1', 'a', 'b', 'g', '2g+1, 'sup': 1', '2, 'CH—R—O—(C═O)—O—R—CH\u2003\u2003(1)'}{'sup': 1', '2, 'wherein O represents an oxygen atom; C represents a carbon atom; H represents a hydrogen atom; Rand Rindependently represent a C2-C48 oxaalkylene group having 1 to 6 oxygen atoms; a and b independently represent an integer of 0 or 1 and satisfy a+b≧1; and f and g independently represent an integer of 1 to 12.'}2. A bearing lubricant , comprising a compound represented by the following general formula (1):{'br': None, 'sub': f', '2f+1', 'a', '2a', 'j', 'b', '2b', 'n', 'd', '2d', 'm', 'e', '2e', 'k', 'g', '2g+1, 'CH(—O—CH)—(O—CH)—O—(C═O)—O—(CH—O)—(CH—O)—CH\u2003\u2003(1′)'}wherein O represents an oxygen atom; C represents a carbon atom; H represents a hydrogen atom; a, b, d and e independently represent an integer of 2 to 8; j, k, m and n independently represent an integer of 0 to 3 and satisfy j+k+m+n≧1; and f and g independently represent an integer of 1 to 12.3. The bearing lubricant according to claim 1 , which is a lubricant for a fluid bearing or a lubricant for an impregnated bearing.4. A bearing which is lubricated with use of a bearing lubricant recited in .5. The bearing according to claim 4 , which is a fluid bearing or an impregnated bearing.6. A method for lubricating a bearing claim 4 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'lubricating a bearing using a bearing lubricant recited in .'}7. A motor comprising a bearing recited in .8. A method for producing a grease claim 1 , comprising using a bearing lubricant recited in .9. A grease comprising a bearing lubricant recited in .10. The bearing lubricant according to claim 2 , which is a lubricant for a fluid bearing or a lubricant for an impregnated bearing.11. ...

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28-11-2013 дата публикации

BEARING ASSEMBLY FOR A MARINE TURBINE SHAFT, AND MARINE TURBINE INCLUDING SUCH A BEARING ASSEMBLEY

Номер: US20130315516A1
Автор: Bertea Jean-François
Принадлежит: Alstom Hydro France

To recover the axial forces transmitted by a rotating shaft, a bearing assembly includes a plurality of distributed bearing units. Each bearing unit comprises: a stationary base; a resilient member having a stationary portion and a portion that is completely movable in a main direction of the forces to be supported; and a bearing surface that defines, together with the shaft, a water film. The bearing surface is connected to the movable portion. The minimum radius of the bearing surface is between 1 m and 3 m. The resilient member and the base define at least one water chamber. A plurality of ducts are arranged so as to connect the chambers together, thereby defining a closed circuit. 1. A bearing assembly for absorbing axial force transmitted by a rotating marine turbine shaft about an axis of rotation , the bearing assembly comprising a plurality of bearing units distributed about the axis of rotation , each bearing unit comprising:a stationary base;a resilient member having a stationary portion rigidly connected to the base and a portion that is generally movable in a main direction of the forces to be supported;a bearing surface suitable for defining, together with the shaft, a volume for receiving a liquid film, the bearing surface being connected to the movable portion of the resilient member,wherein the liquid film is a water film,a minimum radius of the bearing surface is between 1 m and 3 m,the resilient member and the stationary base define at least one chamber containing water, surfaces of the resilient member and the base in contact with water comprising a rustproof material, andthe bearing assembly further comprises a plurality of ducts suitable for circulating water, each duct being arranged so as to connect at least two chambers together, the ducts and the chambers defining a closed circuit extending about the axis of rotation.2. The bearing assembly according to claim 1 , wherein the movable portion moves generally in a parallel direction with ...

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28-11-2013 дата публикации

BEARING PAD, SUPPORT BODY, BEARING ARRANGEMENT AND PUMP

Номер: US20130315518A1
Принадлежит: Sulzer Pumpen AG

A bearing pad, including a pad body () and a tilting element (), for a support body () of a bearing arrangement () for taking up an axial thrust, characterized in that the tilting element () is provided in an elongated recess () of the pad body () extending in a radial direction such that a contact body () of the tilting element () extending in the direction of the recess () projecting beyond a surface of the pad body () and the pad body () has a higher deformability than the tilting element (). 1111223121111112112111111112. A bearing pad , including a pad body () and a tilting element () , for a support body () of a bearing arrangement () for taking up an axial thrust , characterized in that the tilting element () is provided in an elongated recess () of the pad body () extending in a radial direction such that a contact body () of the tilting element () extending in the direction of the recess () projects beyond a surface of the pad body () and the pad body () has a higher deformability than the tilting element ().2111121. A bearing pad in accordance with claim 1 , wherein the bearing pad () claim 1 , including the pad body () and the tilting element () claim 1 , has a two-part bearing pad ().312. A bearing pad in accordance with claim 1 , wherein the tilting element () is of a metal.412111212. A bearing pad in accordance with claim 1 , wherein the contact body () is designed such that the bearing pad () in connection with the contact body () can be movably arranged in the installed state about a tilting axis (A) at the support body ().5. A bearing pad in accordance with claim 1 , wherein the tilting axis (A) is arranged in the radial direction.61221220121. A bearing pad in accordance with claim 1 , wherein a contact surface ( claim 1 , ) of the contact body () is coated claim 1 , in particular ceramically coated.7121. A bearing pad in accordance with claim 1 , wherein a cross-section of the contact body () is convexly arched claim 1 , and is in particular ...

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05-12-2013 дата публикации

Hydrodynamic bearing assembly and spindle motor including the same

Номер: US20130322792A1
Принадлежит: Samsung Electro Mechanics Co Ltd

There are provided a hydrodynamic bearing assembly and a spindle motor including the same. The hydrodynamic bearing assembly includes: a sleeve including a shaft hole to have a shaft rotatably installed therein; and a cover member covering the shaft hole at a lower portion of the shaft hole in an axial direction, wherein an inner surface of the sleeve is provided with depression parts depressed in an outer diameter direction between upper and lower portions of the sleeve and portions in which radial bearings are formed, such that the portions in which the radial bearings are formed are provided with bearing closure adhesion parts allowing the portions in which the radial bearings are formed to be closer to the shaft than portions other than the portions in which the radial bearings are formed.

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05-12-2013 дата публикации

Radial Bearing for Mounting a Shaft

Номер: US20130322795A1
Принадлежит:

The invention relates to a radial bearing for mounting a shaft, comprising the following features: 16-. (canceled)7. A radial bearing for mounting a shaft , the radial bearing comprising:several bearing shells which are curved according to the radius of the shaft and whose inner surface forms the plain bearing surfaces;a housing enclosing the bearing shells;each bearing shell is clamped to the housing at least in the region of its two circumferential ends;means for setting the curvature of the individual bearing shell;the means for setting the curvature of the bearing shells respectively comprise a bar which is embedded in the material of the bearing shell, further a pin which is guided through the housing, acts with its radially inner end on the bar, and comprises at its radially outer end an engagement element for displacing the pin and the bar.8. The radial bearing according to claim 7 , wherein the bearing shells consist of plastic or metal or any other flexible material.9. The radial bearing according to claim 8 , wherein the bearing shells are brought to their final shape relevant for the bearing function only during mounting.10. The radial bearing according to claim 9 , wherein the bearing shells are mounted by means of at least one clamping or holding element and at least one spacer element claim 9 , with both the bearing slackness and also the segment shell curvature being set during mounting both via the position and the selection of the spacer and the clamping or holding element.11. The radial bearing according to claim 7 , wherein:a shell holder is provided between two mutually adjacent bearing shells;each shell holder comprises a holding strip which extends over the axial length of the radial bearing or over a relevant part of its length and is inserted into recesses of the bearing shells;the holding strip is fixed to holding pins which are guided through the remaining part of the thickness of the bearing shells and through the housing and are fixed to ...

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05-12-2013 дата публикации

BUSHING ASSEMBLY

Номер: US20130322796A1
Автор: Taylor Robert J.
Принадлежит:

A bushing assembly is disclosed and includes a bushing that can have an outer surface and an inner surface that can define an opening. The bushing can be configured to fit into a bore and receive a shaft through the opening. The bushing can include at least one flange. The flange can include at least one void. The void can be adapted to prevent an engagement torque, T, between bushing and the shaft from increasing more than twenty-five percent as an interference fit between the bushing and the bore increases. The interference fit can be quantified by a reduction in outer radius, I, by at least 0.025 mm. 1. A bushing assembly , comprising:a bushing having a hub including an outer surface and an inner surface defining an opening and at least one flange extending from the hub, wherein at least one void is formed along a perimeter of the flange, wherein the bushing is configured to fit into a bore and receive a shaft through the opening, and wherein the at least one void in the flange is adapted to prevent an engagement torque, T, between the bushing and the shaft from increasing more than twenty-five percent as an interference fit between the bushing and the bore increases, quantified by a reduction in outer radius of the bushing assembly, I, by at least 0.025 mm.2. The bushing assembly of claim 1 , wherein the bushing further comprises a low friction layer at least partially disposed over the inner surface of the bushing.3. The bushing assembly of claim 2 , wherein the low friction layer comprises a fluoropolymer material.4. The bushing assembly of claim 1 , wherein the bushing is formed with an axial split.5. The bushing assembly of claim 1 , wherein T does not increase more than twenty percent as the interference fit between the bushing and the bore increases.6. The bushing assembly of claim 5 , wherein T does not increase more than five percent as the interference fit increases.7. The bushing assembly of claim 6 , wherein T is constant as the interference fit ...

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05-12-2013 дата публикации

Synthetic resin-made thrust sliding bearing

Номер: US20130322798A1
Принадлежит: Oiles Corp

A synthetic resin-made thrust sliding bearing 1 includes a synthetic resin-made upper casing 12 , a synthetic resin-made lower casing 22 , a synthetic resin-made thrust sliding bearing piece 33 interposed between the upper casing 12 and the lower casing 22 , an outer elastic seal member 47 having an inner elastically deformable lip portion 43 and an outer elastically deformable lip portion 46 , and an inner elastic seal member 54 having an outer elastically deformable lip portion 50 and an inner elastically deformable lip portion 53.

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05-12-2013 дата публикации

BEARING MEMBER, END MEMBER, PHOTOSENSITIVE DRUM UNIT, PROCESS CARTRIDGE, AND METHOD FOR MANUFACTURING BEARING MEMBER

Номер: US20130322923A1
Автор: IKEDA Shuichi
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

A bearing member placed at an end of a photosensitive drum, and a shaft member is attached thereto. The bearing member has a cylindrical body and a retaining portion placed in the cylindrical body, retaining a torque transmission pin provided in the shaft member, and removably provided. The retaining portion is provided with swaying grooves at least two grooves extending in an axial direction of the cylindrical body, placed opposite each other, and whose bottoms have each a curved surface exhibiting a bow with respect to the axial direction; inlet grooves at one end thereof connected to the respective swaying grooves and at the other end thereof connected to outside of the retaining portion and placed at an upstream position with respect to the swaying grooves along a direction of rotation of the cylindrical body; and a pedestal interposed, at one end, between the two swaying grooves. 1. A bearing member that is placed at an end of a photosensitive drum and to which a shaft member is attached , comprising:a cylindrical body;a retaining portion that is placed in the cylindrical body and that retains a torque transmission pin provided in the shaft member and that is provided in a removable manner, at least two swaying grooves that extend along an axial direction of the cylindrical body and that are provided opposite each other and whose bottoms each have a curved surface that exhibits a bow in a direction parallel to the axial direction;', 'inlet grooves that are at one end thereof connected to the respective swaying grooves and at the other end thereof connected to outside of the retaining portion and that are placed at an upstream position with respect to the swaying grooves along a direction of rotation of the cylindrical body; and', 'a pedestal interposed between one ends of the two swaying grooves., 'the retaining portion being provided with'}2. The bearing member according to claim 1 , wherein the pedestal has a curved surface.3. The bearing member according to ...

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12-12-2013 дата публикации

Tilting Pad Journal Bearing and Rotating Machine Provided with the Same

Номер: US20130330030A1
Автор: HEMMI Makoto, Suzuki Kenta
Принадлежит: HITACHI LTD

A tilting pad journal bearing includes a pads disposed on the outer circumferential side of a rotating shaft, pivots supporting pads such that the pads are tiltable, a plurality of guides disposed between pads, and a casing. The pads have an oil passage extending from side to side in the circumferential direction, the guides having first and second guide passages. The first guide passage introduces lubricating oil from an oil-supply hole of the casing and exhaust it to the oil passage of the pad adjacent to the guide on the other side in the circumferential direction. The second guide passage introduces lubricating oil from the oil passage of the pad adjacent to the guide and on one side in the circumferential direction and exhaust it to between the inner circumferential surface of the pad on the other side and the outer circumferential surface of the rotating shaft. 1. A tilting pad journal bearing comprising:a plurality of pads disposed on an outer circumferential side of a rotating shaft and subjected to radial load on the rotating shaft;a plurality of pivots each supporting a corresponding one of the plurality of pads in such a manner that the pads are tiltable; anda casing housing the plurality of pads and the plurality of pivots;the plurality of pads each having an oil passage formed in the inside thereof, the oil passage extending from one side to the other side in a circumferential direction;wherein the journal bearing includes a plurality of guides each disposed between corresponding ones of the plurality of pads, andthe plurality of guides each have a first guide passage formed in the inside thereof and have a second guide passage formed in the inside thereof or between an inner circumferential surface of the guide and an outer circumferential surface of the rotating shaft, the first guide passage being adapted to introduce lubricating oil therein from an oil-supply hole of the casing and exhaust the lubricating oil to the oil passage of the pad that is ...

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19-12-2013 дата публикации

Polymeric Bearing Articles for Use in Ultra-high Pressure and Velocity Environments

Номер: US20130334006A1
Принадлежит: SOLVAY SPECIALTY POLYMERS USA, LLC

A polymeric thrust bearing is provided for an ultra-high PV environment. The polymeric thrust bearing includes an annular bearing body having an inner perimeter and an outer perimeter, and a plurality of lubricant channels extending across the annular bearing body from the inner perimeter to the outer perimeter. The annular bearing body comprises a polymer composition comprising a polymer having typically a glass transition temperature of at least about 140° C., such as an aromatic polyimide or a poly(aryl ether ketone), and at least one friction and wear additive. The polymeric thrust bearing is configured to withstand a velocity and a pressure in a lubricated environment in which the product of the velocity and the pressure is about 1,100,000 psi-fpm (23540 kg/cm×m/min) or more. 1. A polymeric thrust bearing for an ultra-high PV environment comprising:an annular bearing body having an inner perimeter and an outer perimeter;a plurality of lubricant channels extending across the annular bearing body from the inner perimeter to the outer perimeter;wherein said lubricant channels occupy about 5% to about 25% of the surface area of a mating surface of the annular bearing body;wherein the annular bearing body comprises a polymer composition comprising at least one polymer having a glass transition temperature of at least about 140° C. and at least one friction and wear additive; and{'sup': '2', 'wherein the polymeric thrust bearing is configured to withstand a velocity and a pressure in a lubricated environment in which the product of the velocity and the pressure is about 1,100,000 psi-fpm (23540 kg/cm×m/min) or more.'}2. A polymeric thrust bearing for an ultra-high PV environment comprising:an annular bearing body having an inner perimeter and an outer perimeter;a plurality of lubricant channels extending across the annular bearing body from the inner perimeter to the outer perimeter;wherein said lubricant channels occupy about 5% to about 25% of the surface area of a ...

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19-12-2013 дата публикации

BUSHING WHICH CAN BE PRETENSIONED BY MATERIAL DISPLACEMENT AND BEARING EQUIPPED WITH SAID BUSHING

Номер: US20130336606A1
Автор: MITSCH Franz
Принадлежит: FM Energie GMBH & Co., KG

An elastomeric bushing and a bearing which is equipped with the bushing in question. The bushing can, even after installation in the bearing, be pretensioned or calibrated, by displacement of elastomeric material in the interior of the bushing, where the displacement is carried out by different pressing means and tensioning means in the bushing and/or in the surrounding bearing. 125-. (canceled)2616. A round elastomer bushing () which can be pretensioned and calibrated in an installed state , the bushing comprising:{'b': 5', '4', '1, 'a deformable outer sleeve () and a compact inner part () which can be flanged, and which are both connected to one another by an elastomer layer (),'}{'b': 2', '25', '1', '3', '4', '5', '8', '19', '21', '24', '12', '13', '7', '20', '21', '22, 'i': a,', 'a,, 'an additional elastomer layer (, ), being a pressing region, being connected to the elastomer layer () and being compressed by at least one of mechanical pressing or tensioning means (, , , , ; , , ; , , ), and'}{'b': 12', '13', '14', '17', '2', '1', '1', '5', '16', '10, 'hydraulic pressing or tensioning means (, , , ), such that elastomer material, forced out of the pressing region () and forced into the elastomer layer (), compressing the elastomer layer () so that the outer sleeve () of the bushing deforms radially outward, and thus effects tensioning of the bushing () with a surrounding component () connected to the bushing.'}272154. The pretensionable elastomer bushing according to claim 26 , wherein the additional elastomer layer () claim 26 , which functions as the pressing region claim 26 , occupies either all or some of a region of the elastomer layer () between the outer sleeve () and the inner part ().28444415a. The pretensionable elastomer bushing according to claim 26 , wherein the inner part () is flanged and is additionally surrounded by an inner sleeve () claim 26 , of a same shape claim 26 , in which the inner part () precisely fits claim 26 , and which claim 26 , ...

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19-12-2013 дата публикации

SLIDING BEARING

Номер: US20130336607A1
Принадлежит: NTN CORPORATION

It is an object of the present invention to provide a sliding bearing which has a simple construction and thus can be produced easily and at a low cost and yet eliminates the need for the use of a heat insulation sleeve and the like and is capable of maintaining a frictional torque to a low extent. A sliding bearing () has an inner ring (), an outer ring (), and a sliding contact member () interposed therebetween. The inner ring () has a curved surface () formed along an outer circumference thereof and a shaft-receiving hole which fits on a supporting shaft along an inner circumference thereof. The sliding contact member () is a molded body, made of resin composition, which has a curved surface () making sliding contact with the curved outer circumferential surface () of the inner ring () with the curved surface () being opposed to the curved outer circumferential surface (). The outer ring () does not contact the inner ring () and holds the sliding contact member () on an inner circumferential side thereof with the outer ring () covering the sliding contact member (). The outer ring () has an open portion () formed on an axial one end surface thereof and a pawl portion () formed at an edge of the open portion (). The sliding contact member () is combined with the outer ring () by inserting the sliding contact member () into the outer ring () from the open portion () thereof and fixed by the pawl portion (). 1. A sliding bearing comprising an inner ring , an outer ring , and a sliding contact member interposed therebetween ,wherein said inner ring has a curved surface formed along an outer circumference thereof and a shaft-receiving hole which fits on a supporting shaft along an inner circumference thereof;said sliding contact member is a molded body, made of a resin composition, which has a curved surface making sliding contact with said curved outer circumferential surface of said inner ring with said curved surface of said sliding contact member being opposed to ...

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26-12-2013 дата публикации

METHODS OF OPERATING A BEARING APPARATUS INCLUDING TILTING PADS

Номер: US20130343681A1
Принадлежит: US SYNTHETIC CORPORATION

Embodiments of the invention relate to tilting pad bearing assemblies and apparatuses. The disclosed tilting pad bearing assemblies and apparatuses may be employed in downhole motors of a subterranean drilling system or other mechanical systems. In an embodiment, a bearing assembly or apparatus includes a support ring and a plurality of tilting pads. Each tilting pad is tilted and/or tiltably secured relative to the support ring. In some embodiments, one or more of the tilting pads include a plurality of superhard bearing segments assembled to form a superhard bearing surface. One or more seams may be positioned between adjacent superhard bearing segments of the superhard bearing segments. In other embodiments, one or more of the tilting pads may include at least one or only one superhard bearing segment, such as a polycrystalline diamond bearing segment. 1. A method of operating a bearing apparatus , comprising:providing a first bearing assembly that is rotatable relative to a second bearing assembly, wherein the first bearing assembly includes a runner and the second bearing assembly includes a plurality of tilting pads each of which has at least one polycrystalline diamond bearing element; androtating the first bearing assembly relative to the second bearing assembly at a sufficient rotational speed so that a hydrodynamic film develops between the runner of the first bearing assembly and the plurality of polycrystalline diamond bearing elements of the second bearing assembly.2. The method of wherein rotating the first bearing assembly relative to the second bearing assembly includes rotating a shaft using one or more of a pump claim 1 , motor claim 1 , compressor claim 1 , turbine claim 1 , generator claim 1 , or gearbox to effect the rotating.3. The method of wherein the at least one polycrystalline diamond bearing element of one of the tilting pads includes a plurality of polycrystalline diamond elements that are at least partially interlocked with each other.4 ...

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26-12-2013 дата публикации

BEARING STRUCTURE FOR INTERNAL COMBUSTION ENGINE

Номер: US20130343683A1
Принадлежит: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

When temperature of lubricating oil is raised at a time of low-temperature, of an outer peripheral side of a radial plain bearing in a bearing retaining unit, heat is not supplied from a heating medium in a thermal medium flow path on the outer peripheral side of a halved bearing metal in a bearing retaining unit body, which has a large thermal capacity, and instead, heat is supplied from the heating medium in the thermal medium flow path on the outer peripheral side of a halved bearing metal in the cap, which has a small thermal capacity. 1. A bearing structure for an internal combustion engine in which a rotational shaft of an internal combustion engine is supported by a radial plain bearing via lubricating oil and the radial plain bearing is retained by a bearing retaining unit , the bearing structure comprising:a heat supplying device which supplies heat on an outer peripheral side of the radial plain bearing in the bearing retaining unit, whereinthe bearing retaining unit comprises a bearing retaining unit body and a cap which is fastened to the bearing retaining unit body and which has a smaller thermal capacity than the bearing retaining unit body,the radial plain bearing comprises a first halved bearing retained on the bearing retaining unit body and a second halved bearing retained on the cap, andof an outer peripheral side of the first halved bearing in the bearing retaining unit body and an outer peripheral side of the second halved bearing in the cap, the heat supplying device supplies heat on the outer peripheral side of the second halved bearing in the cap and does not supply heat on the outer peripheral side of the first halved bearing in the bearing retaining unit body.2. The bearing structure for an internal combustion engine according to claim 1 , whereinthe heat supplying device supplies heat of a heating medium flowing through a thermal medium flow path, andof the outer peripheral side of the first halved bearing in the bearing retaining unit ...

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02-01-2014 дата публикации

THRUST SLIDING BEARING AND COMBINATION MECHANISM OF THE THRUST SLIDING BEARING AND PISTON ROD WITH COIL SPRING

Номер: US20140001689A1
Автор: Kaneko Ryohei
Принадлежит: OILES CORPORATION

A thrust sliding bearing includes an synthetic resin-made annular bearing body having an annular upper surface, an annular outer peripheral surface, and an annular lower surface; a synthetic resin-made annular bearing body having an annular lower surface; a sheet metal-made reinforcement member having an annular lower surface and an annular upper surface; a synthetic resin-made thrust sliding bearing piece interposed between the annular upper surface of the reinforcement member and the annular lower surface of the bearing body; and a synthetic resin-made radial sliding bearing piece disposed between an annular inner peripheral surface of a hollow cylindrical portion of the reinforcement member and an annular outer peripheral surface of a hollow cylindrical portion of the bearing body. 1. A thrust sliding bearing comprising: a synthetic resin-made annular first bearing body having an annular upper surface and an annular lower surface; a synthetic resin-made annular second bearing body which is superposed on said first bearing body so as to be relatively rotatable about an axis of said first bearing body and has an annular lower surface opposed to the annular upper surface of said first bearing body; a sheet metal-made reinforcement member having an annular lower surface in contact with the annular upper surface of said first bearing body and an annular upper surface opposed to the annular lower surface of said second bearing body; and thrust sliding bearing means interposed between the annular upper surface of said reinforcement member and the annular lower surface of said second bearing body and having an annular lower surface and an annular upper surface which are respectively in slidable contact with the annular upper surface of said reinforcement member and the annular lower surface of said second bearing body , wherein said first bearing body is adapted to receive at the annular lower surface thereof one end of a coil spring.2. The thrust sliding bearing ...

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09-01-2014 дата публикации

THRUST SLIDING BEARING

Номер: US20140010485A1
Автор: Kaneko Ryohei
Принадлежит: OILES CORPORATION

A thrust sliding bearing includes: a synthetic resin-made upper casing which has a vehicle body-side seat surface for a mounting member on a vehicle body side and an annular lower surface a synthetic resin-made lower casing on which an annular upper surface opposed to the annular lower surface and a spring seat surface for a suspension coil spring are integrally formed, and which is superposed on the upper casing so as to be rotatable about an axis O of the upper casing in an R direction; and a synthetic resin-made thrust sliding bearing piece which is disposed in an annular gap between the annular lower surface and the annular upper surface and has an annular thrust sliding bearing surface which slidably abuts against at least one of the annular lower surface and the annular upper surface 1. A thrust sliding bearing comprising:a synthetic resin-made upper casing which has a vehicle body-side seat surface for a vehicle body side and an annular lower surface;a synthetic resin-made lower casing on which an annular upper surface opposed to the annular lower surface and a spring seat surface for a suspension coil spring are integrally formed, and which is superposed on said upper casing so as to be rotatable about an axis of said upper casing; anda thrust sliding bearing piece which is disposed in an annular gap between the annular lower surface and the annular upper surface, and has an annular thrust sliding bearing surface which slidably abuts against at least one of the annular lower surface and the annular upper surface,wherein the vehicle body-side seat surface, the thrust sliding bearing surface, and the spring seat surface are arranged by being juxtaposed to each other in an axial direction.2. The thrust sliding bearing according to claim 1 , wherein a portion of the spring seat surface where the suspension coil spring abuts claim 1 , the vehicle body-side seat surface claim 1 , and the thrust sliding bearing surface are arranged in series to each other in the ...

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23-01-2014 дата публикации

Bearing assemblies, apparatuses, and motor assemblies using the same

Номер: US20140023301A1
Принадлежит: US Synthetic Corp

Various embodiments of the invention relate to bearing assemblies, apparatuses and motor assemblies that include geometric features configured to impart a selected amount of heat transfer and/or hydrodynamic film formation. In an embodiment, a bearing assembly may include a plurality of superhard bearing pads distributed circumferentially about an axis. At least some of the plurality of superhard bearing pads may include a plurality of sub-superhard bearing elements defining a bearing surface. At least some of the plurality of sub-superhard bearing elements may be spaced from one another by one or more voids to impart a selected amount of heat transfer and hydrodynamic film formation thereon during operation. The bearing assembly may also include a support ring that carries the plurality of superhard bearing pads. In addition, at least a portion of the sub-superhard bearing elements may extend beyond the support ring.

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06-02-2014 дата публикации

LAYSHAFT END BEARING RETROFIT WITH EXTERNAL POSITIVE OIL PRESSURE DELIVERY

Номер: US20140037235A1
Принадлежит: IMS SOLUTION

A bearing for retro-fit or repair of an engine provides high reliability through a sleeved bearing design having externally-supplied lubrication. The bearing assembly may be supplied as a kit including a lubrication delivery tube and an oil filter adapter having a port for supplying the external lubrication to a mounting flange of the bearing. In order to install the bearing a captive sleeve is inserted in a hollow end of the shaft being supported. A cap having a threaded stud is inserted with the sleeve into the hollow end of the shaft and secured by the required snap ring. Then a nut is used to secure the cap and the sleeve to a stud affixed to the mounting flange that secures the bearing assembly to the engine. 1. An end bearing assembly for supporting an end of a rotary shaft , comprising:a rotating bearing for coupling to an end of the rotary shaft;a flange mechanically secured to the bearing for mounting the end bearing assembly to an external surface of an engine; andan oil delivery system comprising a tube for delivering pressurized oil to surfaces of the rotating bearing from a source of pressurized oil of the engine .2. The end bearing assembly of claim 1 , wherein the rotating bearing comprises a bushing for coupling to an end of the rotary shaft and a stud for insertion into the bushing and on which the bushing rotates claim 1 , and wherein the oil delivery system is coupled to the flange for supplying lubrication to the bushing and the stud from a source external to the engine through the flange.3. The end bearing assembly of claim 2 , wherein a first end of the tube is connected to the first port on the flange and a second end of the tube connects to a second port on an adapter for coupling to a first oil filter fitting of the engine and which further includes a second oil filter fitting for attaching an oil filter claim 2 , whereby the adapter supplies the first port with the lubrication from oil supplied to the oil filter fitting from the engine ...

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27-02-2014 дата публикации

Telescopic Arm For A Refuse Vehicle

Номер: US20140056637A1
Принадлежит:

A telescopic side arm for a refuse vehicle has an inner and outer boom. A mounting assembly secures the outer boom with a refuse vehicle. A plurality of bearing pads is positioned between the inner and outer booms to provide smooth movement between the inner and outer booms. A plurality of shims is associated with the bearing pads to assure a tight fit between the inner and outer booms. 1. A telescopic side arm for a refuse vehicle comprising:an outer boom defining a bore;an inner boom received in the bore of the outer boom;a mounting assembly on the outer boom for securing the outer boom with the refuse vehicle;a plurality of bearing pads between the inner and outer booms, the plurality of bearing pads in contact with an inner surface of the outer boom defining the bore;a plurality of shims associated with the bearing pads for assuring a tight fit between the inner and outer booms.2. The telescopic arm according to claim 1 , wherein the outer boom in cross-section has a polygonal configuration with an overall U-shaped portion with legs at an obtuse angle with respect to a web.3. The telescopic arm according to claim 2 , wherein the inner boom in cross-section has a polygonal configuration with an overall U-shaped portion with legs at an obtuse angle with respect to a web.4. The telescopic arm according to claim 1 , wherein the mounting assembly further comprises:a pin inserting into a bracket on the refuse vehicle;a plate coupled with the pin to maintain the pin in the bracket;a bearing sliding over the pin to provide a bearing surface and enable quick change of the mounting assembly; anda mechanism coupling with the outer boom.5. The telescopic arm according to claim 1 , further comprising a bearing pad bracket having an overall U-shaped with legs at an obtuse angle with respect to a web claim 1 , the legs and web including an aperture to receive a pad claim 1 , and a tongue extending into the apertures to retain the pads on the bracket.6. The telescopic arm ...

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13-03-2014 дата публикации

THRUST WASHER FOR AN ELECTRIC MACHINE

Номер: US20140070648A1
Автор: WINKLER Wolfgang
Принадлежит: ROBERT BOSCH GMBH

The invention relates to a thrust washer () for an electric machine () intended to be arranged on a shaft () between a bearing () and a rotor (), preferably a rotating electrical contact element () impacted by brushes (), and/or a lamination stack () of the rotor (). The thrust washer () is provided with an area for sealing having two end faces (). Each end face () has at least one abutment section () for the bearing () or the rotor (). A cavity () that is circumferential in at least some sections is arranged between the abutment sections () of the two end faces (). 12810121618142832345052181432345450523234. A thrust washer () for an electric machine ( , ) , the thrust washer configured to be arranged on a shaft () between a bearing () and a rotor () , wherein the thrust washer () has a region for providing sealing having two end faces ( , ) and has at least one abutment section ( , ) for the bearing () and , respectively , the rotor () on each end face ( , ) , characterized in that a hollow space () which is circumferential at least in sections is arranged between the abutment sections ( , ) of the two end faces ( , ).228142438. The thrust washer () as claimed in claim 1 , characterized in that the rotor () has a rotating electrical contact element () which is acted on by brushes ().32854. The thrust washer () as claimed in claim 1 , characterized in that the hollow space () is of closed design.428545052. The thrust washer () as claimed in claim 1 , characterized in that the hollow space () is formed over an entire circumference of the abutment sections ( claim 1 , ).52854. The thrust washer () as claimed in claim 1 , characterized in that the hollow space () has different cross section over a circumference of the space.62828. The thrust washer () as claimed in claim 1 , characterized in that the thrust washer () is composed of a single material.72828. The thrust washer () as claimed in claim 1 , characterized in that the thrust washer () is produced using a fluid ...

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13-03-2014 дата публикации

Axial bearing for an electric drive

Номер: US20140072459A1
Автор: Michal Kalavsky
Принадлежит: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH

The invention relates to an axial bearing for retaining a rotor on a shaft of an electric drive. The axial bearing has a multi-sided outer contour.

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27-03-2014 дата публикации

SLIDING BEARING AND METHOD TO PERFORM SERVICE AT A SLIDING BEARING

Номер: US20140086515A1
Автор: Pedersen Bo, Thomsen Kim
Принадлежит:

A sliding bearing of a wind turbine and a method to perform a service at a sliding bearing are proposed. The sliding bearing has a first bearing shell and a second bearing shell and a plurality of bearing pads arranged between the first bearing shell and the second bearing shell. The bearing pads are connected to the second bearing shell and the first bearing shell has a sliding surface that is prepared and arranged so that the bearing pads can slide along the sliding surface when the bearing shells are moved in respect to each other. A machining element is arranged between the first bearing shell and the second bearing shell to treat the sliding surface of the first bearing shell. 1. A sliding bearing of a wind turbine , comprising:a first bearing shell comprising a sliding surface;a second bearing shell;a plurality of bearing pads arranged between the first bearing shell and the second bearing shell; anda machining element arranged between the first bearing shell and the second bearing shell to treat the sliding surface,wherein the bearing pads are connected to the second bearing shell, andwherein the sliding surface is prepared and arranged so that the bearing pads can slide along the sliding surface when the first bearing shell and the second bearing shell are moved in respect to each other.2. The sliding bearing according to claim 1 , wherein at least one of the bearing pads is prepared and arranged to be replaceable by the machining element.3. The sliding bearing according to claim 1 , wherein the machining element is a bearing pad with a machining surface.4. The sliding bearing according to claim 1 , wherein at least one bearing pad comprises a pad carrier and a liner claim 1 , and wherein the machining element is a pad carrier with a liner having a machining property.5. The sliding bearing according to claim 1 , further comprising an opening in the first bearing shell claim 1 , wherein the opening is a through hole leading from an outer surface to an inner ...

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06-01-2022 дата публикации

INSERT BEARING AND MANUFACTURING METHOD THEREOF, SINTERED BEARING SUITABLE FOR INSERT BEARING, SINTERED INSERT COMPONENT AND MANUFACTURING METHOD THEREOF, AND SINTERED COMPONENT SUITABLE FOR SINTERED INSERT COMPONENT

Номер: US20220001446A1
Принадлежит: Diamet Corporation

A sintered component forming step is for forming a sintered component by powder molding. An insert forming step is for forming a sintered insert component in which an exterior component is integrated on an outer peripheral portion of the sintered component. One or more grooves or ridges are formed on an outer peripheral portion of a region except for one end portion of the sintered component in the sintered component forming step. The insert forming step includes a step for bringing the outer peripheral portion of the end portion into contact with an inner peripheral surface of an insert forming mold along a circumferential direction and covering the one or more grooves or ridges by the insert forming mold with an interval to form a cavity on an outer peripheral portion of the sintered component and a step for filling a melted material in the cavity. 1. A manufacturing method of an insert bearing comprising:a step of forming a sintered bearing by powder molding and a step of forming an insert bearing in which an exterior component is integrated with an outer circumference of the sintered bearing; wherein a large diameter portion having an outer diameter is formed on the outer peripheral portion of the sintered bearing, and the large diameter portion is larger than both end portions, and', 'one or more grooves or ridges extending along an axis direction are formed on an outer peripheral surface of the large diameter portion; and, 'in the step of forming the sintered bearing,'} 'a mold assembling step forming a cavity on the outer peripheral portion of the sintered bearing by bringing an outer peripheral surface of a tip end portion of both of the end portions of the sintered bearing into contact with an inner peripheral surface of an insert molding mold along a circumference direction and covering around the base end portion of each end portion and the large diameter portion while leaving a space; and', 'the step of forming the insert comprisesa filling step for ...

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06-01-2022 дата публикации

Steering device

Номер: US20220001913A1
Автор: Yoshinori Shiroishi
Принадлежит: Yamada Manufacturing Co Ltd

A steering device according to an aspect of the present invention includes an outer shaft, an inner shaft, an outer column, and an inner column. The inner shaft has a sliding portion configured to be capable of being inserted into the outer shaft, and a bearing-mounting portion that is connected to the sliding portion in an axial direction thereof and is configured not to be capable of being inserted into the outer shaft. In the bearing-mounting portion, rear bearings are disposed with an interval therebetween in the axial direction.

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06-01-2022 дата публикации

Slide bearing, in particular for a gearbox of a wind turbine

Номер: US20220003218A1
Принадлежит: Miba Gleitlager Austria GmbH

A sliding bearing for a gearbox of a wind turbine, having a support body and a sliding layer which is applied on the support body, and on which a sliding surface is formed, wherein a lubricant distribution groove extending in an axial direction of the sliding surface is formed on the sliding surface. The support body is formed as a bush rolled from a support body strip, wherein a first longitudinal end and a second longitudinal end of the support body strip are connected to one another in a materially bonded manner, in particular by a welding connection, at a joint, wherein the joint is formed in the region of the lubricant distribution groove.

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01-01-2015 дата публикации

THRUST SLIDE BEARING, AND COMBINATION MECHANISM OF A THRUST SLIDE BEARING AND A PISTON ROD

Номер: US20150003761A1
Принадлежит:

Provided is a low height lightweight thrust slide bearing: which is capable of preventing the deformation of the ring-shaped metal plate and of reducing the generation of noise that occurs with the relative rotation of a piston rod even when a large force is applied on the metal plate via the piston rod; which is capable of preventing the intrusion of foreign matters such as dust from outside onto the sliding surfaces; and for which the number of constituent parts has been reduced. The thrust slide bearing () is provided with a synthetic resin bearing body () having a ring-shaped upper surface () that functions as a sliding surface, a ring-shaped metal plate () that is supported on the ring-shaped upper surface () to be freely rotatable relative to the bearing body () in the circumferential direction (R) around the shaft center (O), and a ring-shaped cover () disposed so as to cover the ring-shaped upper surface () and the ring-shaped metal plate (). The ring-shaped metal plate () is provided with an inner disc section () that is formed as a unit with an outer disc section () and is disposed in the through hole () of the ring-shaped cover (). The inner disc section () also functions as a reinforcing part (rib) of the outer disc section (). 1. A thrust slide bearing , comprising:a bearing body which is formed by resin, and has a ring-shaped upper surface functioning as a sliding surface;a ring-shaped metal plate which is supported on the ring-shaped upper surface rotatably relative to the bearing body; anda ring-shaped cover which is placed to cover the ring-shaped upper surface and the ring-shaped metal plate, wherein,the bearing body comprises:a cylindrical portion which has an cylindrical inner periphery surface defining a through-hole;a ring-shaped flange portion which integrally extends outward in a radial direction from a cylindrical outer periphery surface of the cylindrical portion, to form the ring-shaped upper surface;a ring-shaped protruding portion which ...

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01-01-2015 дата публикации

Tilting Pad Bearing

Номер: US20150003762A1
Принадлежит:

A tilting pad bearing is provided that can reduce an amount of oil leaking from the side edges of a sliding surface of a pad, thereby reducing an amount of oil to be fed onto the sliding surface of the pad. 1. A tilting pad bearing , comprising:a plurality of journal pads arranged in a circumferential direction of a rotating shaft so as to face an outer circumferential surface of the rotating shaft; anda bearing housing for carrying the plurality of journal pads via a plurality of pivots in a tiltable manner;wherein lubricating oil is fed to a sliding surface of each of the journal pads via an oil-feeding hole formed in at least one of the journal pads or via an oil-feed nozzle disposed between at least a pair of the journal pads adjacent to each other; andwherein the sliding surface of each of the journal pads includes a portion so formed that the sliding surface has an axial width that gradually increases from an oil-feed start position to feed the lubricating oil from the oil-feeding hole or the oil-feed nozzle onto the sliding surface as the axial width approaches the circumferential downstream side of the rotating shaft.2. The tilting pad bearing according to claim 1 ,wherein each of the journal pads is configured so that the whole of an axial width thereof including the sliding surface and a stepped surface is constant from a circumferential upstream leading edge to a circumferential downstream trailing edge.3. The tilting pad bearing according to claim 1 ,wherein the sliding surface of each of the journal pads is formed so that the sliding surface has an axial width that gradually increases, as the axial width approaches the circumferential downstream side of the rotating shaft, from a circumferential upstream leading edge to a circumferential downstream trailing edge excluding a portion of the oil-feeding hole positioned circumferentially when the oil-feeding hole is formed.4. A tilting pad bearing claim 1 , comprising:a plurality of thrust pads arranged in ...

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05-01-2017 дата публикации

Self-Leveling Thrust Bearing Retainer

Номер: US20170002857A1
Автор: Neil A. Guest, JR.
Принадлежит: Elliott Co

A thrust bearing includes a bearing retainer including a first ring and a second ring radially spaced from the first ring, the first ring and the second ring defining an annular passageway therebetween, and at least two bearing pad retaining arrangements extending from a first surface of the second ring, each bearing pad retaining arrangement defining a retaining channel therein, and at least two bearing pads circumferentially spaced within the bearing retainer. The bearing pads may be held within the bearing retainer via the bearing pad arrangements.

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05-01-2017 дата публикации

Bearing Assembly for a Drive Shaft Guided in a Protective Tube

Номер: US20170002860A1
Принадлежит:

A bearing assembly for a drive shaft guided in a protective tube is provided with bearing tube segments arranged in the protective tube one after another in a longitudinal direction of the protective tube. The bearing tube segments are penetrated by the drive shaft. The bearing tube segments include bearing sections. The bearing sections are provided with a central bearing sleeve and support elements projecting away from an outer circumference of the bearing sleeve. The bearing sleeve is radially supported by the support elements on an inner circumference of the protective tube. The bearing section with its bearing sleeve and support elements is formed as one piece. The bearing tube segments have a length measured in a longitudinal direction of the protective tube and the sum of the lengths of the bearing tube segments is greater than 60% of a length of the protective tube. 117.-. (canceled)18. A bearing assembly for a drive shaft guided in a protective tube , wherein the drive shaft connects a tool with a drive , wherein the bearing assembly comprises:bearing tube segments arranged in the protective tube one after another in a longitudinal direction of the protective tube, wherein the bearing tube segments are penetrated by the drive shaft;wherein the bearing tube segments include first bearing tube segments;wherein the first bearing tube segments each are embodied as a bearing section, wherein the bearing section comprises a central bearing sleeve and further comprises support elements projecting away from an outer circumference of the bearing sleeve, wherein the bearing sleeve is radially supported by the support elements on an inner circumference of the protective tube and wherein the bearing section, comprised of the bearing sleeve and the support elements, is em bodied as one piece;wherein the bearing tube segments each have a length measured in a longitudinal direction of the protective tube and wherein the sum of the lengths of the bearing tube segments is ...

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05-01-2017 дата публикации

Bearing Assembly for a Drive Shaft Guided in a Protective Tube

Номер: US20170002861A1
Принадлежит:

A bearing assembly for a drive shaft guided in a protective tube is provided with bearing tube segments arranged in the protective tube one after another in a longitudinal direction of the protective tube. The bearing tube segments are penetrated by the drive shaft. The bearing tube segments include bearing sections. The bearing sections are provided with a central bearing sleeve and support elements projecting away from an outer circumference of the bearing sleeve. The bearing sleeve is radially supported by the support elements on an inner circumference of the protective tube. The bearing section with its bearing sleeve and support elements is formed as one piece. The bearing tube segments have a length measured in a longitudinal direction of the protective tube and the sum of the lengths of the bearing tube segments is greater than 60% of a length of the protective tube. 1. A bearing assembly for a drive shaft guided in a protective tube , wherein the drive shaft connects a tool with a drive , wherein the bearing assembly comprises:bearing tube segments arranged in the protective tube one after another in a longitudinal direction of the protective tube, wherein the bearing tube segments are penetrated by the drive shaft;wherein a plurality of the bearing tube segments are embodied as a bearing section, respectively, wherein the bearing sections each comprise a central bearing sleeve and support elements projecting away from an outer circumference of the bearing sleeve, wherein the bearing sleeve is radially supported by the support elements on an inner circumference of the protective tube and wherein the bearing sections, each comprised of the bearing sleeve and the support elements, each are embodied as one piece;wherein the bearing sections are arranged so as to follow each other;wherein the bearing tube segments each have a length measured in a longitudinal direction of the protective tube and wherein the sum of the lengths of the bearing tube segments is ...

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07-01-2016 дата публикации

TRI-LOBE BEARING FOR A GEARBOX

Номер: US20160003341A1
Принадлежит:

A bearing for a gearbox, the bearing having a cylindrical body. The cylindrical body defines a hollow interior chamber. The cylindrical body has a gear supporting section. The gear supporting section has a cross-section formed by three lobes equally distributed around a circumference of the cylindrical body. Each of the lobes has a land portion having a first radius over at least 20% of the lobe. Each lobe also has a tapered portion that gradually slopes from the first radius of the land portion to a reduced radius region that is smaller than the first radius. The tapered portion is formed over less than 80% of each lobe. Each lobe also has an opening formed in the reduced radius region and a flow passage fluidly connecting the hollow interior of the cylindrical body with the opening formed in the reduced radius region. 1. A bearing for a gearbox , the bearing comprising:a substantially cylindrical body defining a hollow interior chamber, the cylindrical body havingat least one gear supporting section, the at least one gear supporting section having a cross-section formed by three lobes equally distributed around a circumference of the cylindrical body, each lobe of the three lobes havinga land portion forming a first radius of the cylindrical body over at least 20% of each lobe, 'an opening formed in the reduced radius region of each lobe;', 'a tapered portion gradually sloping from the first radius of the land portion to a reduced radius region having a second radius, which is smaller than the first radius, the tapered portion being formed over less than 80% of each lobe, and'}at least one flow passage fluidly connecting the hollow interior of the cylindrical body with each of openings formed in the reduced radius regions of the three lobes.2. The bearing of claim 1 , wherein the opening of each of the three lobes is formed over at least 5% of the circumference of the cylindrical body.3. The bearing of claim 1 , wherein the first radius is at least 6/1000 of an ...

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04-01-2018 дата публикации

SUPRESSING VIBRATIONS OF SHAFTS USING ADJUSTABLE BEARINGS

Номер: US20180003075A1
Принадлежит:

A bearing configured to actively damp vibration of a shaft in a turbine. In one implementation, the bearing can include actuating members that move in a manner that changes properties of fluid, typically a thin film of lubricant, disposed in the bearing to facilitate rotation of the shaft. These changes effectively manipulate the stiffness and damping of the thin film according to a time periodicity that matches a parametric anti-resonance of the bearing. In turn, the resulting interaction of vibrating modes is favorable to damp vibration amplitudes at critical speeds. 1. A bearing , comprising:a casing having a center axis;a first pad and a second pad disposed in the casing, each forming an arcuate carrying surface and radially moveable in a direction perpendicular to the center axis of the casing; andan actuator coupled with the first pad and the second pad,wherein the actuator is configured to displace the first pad and the second pad harmonically relative to the center axis.2. The bearing of claim 1 , wherein the first pad and the second pad are spaced apart annularly from one another about the center axis.3. The bearing of claim 1 , wherein the first pad and the second pad oppose each other on opposite sides of the center axis.4. The bearing of claim 1 , wherein the first pad and the second pad have adjacent ends that are annularly offset from one another by less than 180°.5. The bearing of claim 1 , wherein the arcuate carrying surface has an arc length that is the same as between the first pad and the second pad.6. The bearing of claim 1 , wherein the arcuate carrying surface has an arc length that is different as between the first pad and the second pad.7. The bearing of claim 1 , further comprising a third pad also having the arcuate carrying surface and radially moveable in a direction perpendicular to the center axis claim 1 , wherein the arcuate carrying surface of the first pad claim 1 , the second pad claim 1 , and the third pad claim 1 , in aggregate ...

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04-01-2018 дата публикации

Ball-Socket Type Tilting Pad Journal Bearing

Номер: US20180003219A1
Автор: Choi Tae Gyu
Принадлежит:

A ball-socket type tilting pad journal bearing configured to reduce friction between a tilting pad and a pivot includes a housing body, a plurality of tilting pads disposed inside the housing body, and a plurality of pivots fixed on an inner surface of the housing body. An oil collection unit for collecting oil is provided in at least one of an outer circumferential surface of each of the pivots and a socket of each of the tilting pads. 1. A ball-socket type tilting pad journal bearing comprising:a cylindrical housing body;a plurality of tilting pads disposed inside the housing body and arranged along a circumference of the housing body, with a concave socket formed in a side surface of each of the tilting pads that faces an inner surface of the housing body; anda plurality of pivots fixed on the inner surface of the housing body and inserted into the respective sockets of the tilting pads, each of the pivots having a curved surface;wherein an oil collection unit for collecting oil is provided in an outer circumferential surface of each of the pivots.2. The ball-socket type tilting pad journal bearing according to claim 1 , further comprising:a fixed housing coupled to a predetermined portion of the housing body,wherein support pins protruding from upper and lower surfaces of each of the tilting pads in an axial direction of the tilting pad are respectively inserted into and fixed in a depression formed in the housing body and a depression formed in the fixed housing.3. The ball-socket type tilting pad journal bearing according to claim 2 , wherein the oil collection unit comprises a plurality of circular grooves formed in a circumferential direction and spaced apart from each other.4. The ball-socket type tilting pad journal bearing according to claim 3 , wherein the grooves spaced apart from each other are formed parallel with each other in a direction perpendicular to a center axis of the pivot.5. The ball-socket type tilting pad journal bearing according to ...

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04-01-2018 дата публикации

TILTING PAD JOURNAL BEARING

Номер: US20180003220A1
Автор: ARIHARA Hirotoshi

On a facing surface () of a pad () that faces a rotation shaft, an oil supply unit () is provided in an end region downstream of the rotation shaft in the rotation direction, and the oil supply unit () is formed along part of an isopleth of the pressure distribution on the facing surface () generated by a lubricant being caught between the rotation shaft and the facing surface (), said part of the isopleth being downstream, in the rotation direction, of the pressure maximum of the pressure distribution. 1. A tilting pad journal bearing which supports a rotary shaft by a plurality of pads arranged around the rotary shaft so that the rotary shaft is rotatable ,wherein an oil supply unit is provided in a portion of an opposite surface of at least one of the plurality of pads opposite the rotary shaft, the portion being located at a downstream end in a rotation direction of the rotary shaft, andthe oil supply unit is formed along a portion of an isopleth of the distribution of pressure generated on the opposite surface by a lubricant caught between the rotary shaft and the opposite surface, the portion of the isopleth being located downstream of a maximum pressure point of the distribution of pressure in the rotation direction.2. The tilting pad journal bearing according to claim 1 , wherein the portion of the isopleth located downstream is a portion of the opposite surface claim 1 , which has a quarter of the length of the opposite surface from the downstream end of the opposite surface in the rotation direction.3. The tilting pad journal bearing according to claim 1 , wherein at least one oil supply groove formed along the isopleth is provided as the oil supply unit.4. The tilting pad journal bearing according to claim 3 , wherein the at least one oil supply groove includes a plurality of oil supply grooves arranged parallel to each other.5. The tilting pad journal bearing according to claim 3 , wherein the at least one oil supply groove is divided into plural oil ...

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04-01-2018 дата публикации

BEARING SHOE FOR SUPPORTING A ROTOR JOURNAL IN A TURBINE ENGINE

Номер: US20180003221A1
Принадлежит:

A rotor journal support system () configured to allow for a bearing shoe () to properly align to the rotor () while keeping the bearing shoe () constrained during handling, installation, and operation limit is disclosed. The rotor journal support system () may be configured to enable limited movement of a bearing shoe () such that when the rotor journal () is installed, the bearing shoe () is properly aligned with the rotor journal (), thereby requiring less torque to turn the rotor journal () from a stop than when the bearing shoe () is misaligned. The rotor journal support system () may include bearing shoe supports () extending radially outward from the bearing shoe (). The bearing shoe support () may include an outer bearing surface () having at least a partial spherical shape configured to bear against the aligning ring (). In this position, the bearing shoe support () enables the bearing shoe () to be moved in any direction other than circumferentially and radially outward. 112-. (canceled)13. A rotor journal support system comprising:at least one aligning ring forming at least a portion of a cylindrical opening through which a rotor journal may extend;at least one first retaining plate extending radially inward further than a radially inward surface of the at least one aligning ring;at least one second retaining plate extending radially inward further than the radially inward surface of the at least one aligning ring, and wherein the at least one second retaining plate is offset axially from the at least one first retaining plate;at least one bearing shoe positioned radially inward from the inward surface of the at least one aligning ring; andat least one bearing shoe support extending from the at least one bearing shoe radially outward to the at least one aligning ring, wherein the at least one bearing shoe support includes an outer bearing surface having at least a partial spherical shape configured to bear against a radially inward surface of the at least ...

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07-01-2021 дата публикации

SLIDING MEMBER

Номер: US20210003169A1
Автор: Ichikawa Masaya
Принадлежит: TAIHO KOGYO CO., LTD.

A sliding member including an overlay capable of realizing good fatigue resistance while preventing interlayer peeling. The sliding member includes an overlay formed of an alloy plating film of Bi and Sb. The overlay contains Bi, Sb, and unavoidable impurities. The concentration of Sb on the surface of the overlay is 0.92% by mass or more and 13% by mass or less. 1. (canceled)2. A sliding member comprising:an overlay formed of an alloy plating film of Bi and Sb,wherein the overlay contains Bi, Sb, and unavoidable impurities, andwherein a concentration of Sb on a surface of the overlay is 0.92% by mass or more and 13% by mass or less,wherein the overlay has a concentration gradient in which the concentration of Sb increases as a depth from the surface increases.3. (canceled) The present invention relates to a sliding member including an overlay of an alloy plating film of Bi and Sb.There is known a sliding member including an overlay that includes a coating layer of Bi and an intermediate layer of Ag (see Patent Literature 1). In Patent Literature 1, the interlayer adhesion of the overlay is improved by adjusting the size of the crystal grains of Ag in the intermediate layer. Furthermore, by adjusting the size of the Bi crystal grains in the coating layer, the adhesion and fatigue resistance of the film of the overlay are improved.Patent Literature 1: JP 2006-266445 AHowever, even if the interlayer adhesion is improved by adjusting the size of the crystal grains as in Patent Literature 1, there is a problem that interlayer peeling cannot be avoided since the overlay has a two-layer structure. Furthermore, when the overlay has a two-layer structure, there is a problem that a sudden change in bearing characteristics cannot be avoided during wear.The present invention has been made in view of the above problems, and an object of the present invention is to provide a sliding member including an overlay capable of realizing good fatigue resistance while preventing ...

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07-01-2021 дата публикации

SLIDING MEMBER

Номер: US20210003172A1
Автор: AOKI Maki
Принадлежит: TAIHO KOGYO CO.,LTD.

The sliding member includes an aluminum alloy layer containing 7.0% by mass or more and 13.0% by mass or less of Sn, 6.5% by mass or more and 12.0% by mass or less of Si, 0.5% by mass or more and 3.0% by mass or less of Cu, unavoidable impurities, and a balance Al. Si particles are dispersed in the aluminum alloy layer. A Vickers hardness of a matrix of the aluminum alloy layer is 40 HV or more and 60 HV or less. A load resistance value, which is a product of a volume concentration and average area of the Si particles and the Vickers hardness of the matrix, is 0.00001 N or more and 0.00029 N or less. 1Si particles are dispersed in the aluminum alloy layer,the Vickers hardness of a matrix of the aluminum alloy layer is 40 HV or more and 60 HV or less, anda load resistance value, which is a product of a volume concentration and average area of the Si particles and the Vickers hardness of the matrix, is 0.00001 N or more and 0.00029 N or less.. A sliding member comprising an aluminum alloy layer containing 7.0% by mass or more and 13.0% by mass or less of Sn, 6.5% by mass or more and 12.0% by mass or less of Si, 0.5% by mass or more and 3.0% by mass or less of Cu, unavoidable impurities, and a balance Al, wherein The present invention relates to a sliding member provided with an aluminum alloy layer.In sliding bearings of engines for automobiles and industrial machines, aluminum alloys based on Al-Sn-Si ternary alloys are widely used as bearing alloys. Generally, in aluminum-based bearing alloys, Sn is added to provide conformability, and Si is added to provide wear resistance. In the Al-Sn-Si ternary alloys, precipitates of Si (hereinafter referred to as “Si particles”) are formed, and the characteristics of the bearing alloys are influenced by the size of the Si particles. Therefore, the optimization of the particle diameter of the Si particles is attempted as in Patent Literature 1.Patent Literature 1: JP 3472284 BHowever, when the matrix is soft even though the Al- ...

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03-01-2019 дата публикации

Adjusting device for a turbocharger, and turbocharger

Номер: US20190003376A1
Принадлежит: IHI Charging Systems International GmbH

The invention relates to a control device for a turbocharger, comprising an exhaust gas conducting section through which fluid can flow and which includes a bypass duct for bypassing a turbine wheel that is rotatably arranged in the exhaust gas conducting section, and comprising an adjusting arm (3) for accommodating a valve element (2) provided for opening or blocking a flow cross-section of the bypass duct; the adjusting arm (3) is movably accommodated in the exhaust gas conducting section; furthermore, a flexible element (14) is provided at least for securing the valve element (2) in place on the adjusting arm (3). According to the invention, the flexible element (14) is designed so as to be radially slidable in order to reduce adjustment forces.

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03-01-2019 дата публикации

FOIL BEARING

Номер: US20190003524A1
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A foil bearing for supporting a shaft includes a sleeve-type bearing housing with three foil arrangements distributed around the inner circumference of the baring housing. Each foil arrangement covers a circumferential segment of the bearing housing. Each foil arrangement has a corrugated foil lying against an inner wall of the housing, and a top foil covering the corrugated foil. Each of the corrugated foil and the top foil has respective end edges. Each of the end edges are supported within the inner wall of the housing in a sliding manner. In particular, insertion grooves are formed in the inner surface of the housing which extend obliquely into the housing wall outwardly. The insertion grooves receive the end edges of the corrugated foil and the top foil. 1. A foil bearing for supporting a shaft , said bearing comprising: covering a circumferential segment of the bearing housing,', 'having a corrugated foil lying against an inner surface of the bearing housing; and', 'having a top foil covering said corrugated foil and having end edges delimiting the top foil in a circumferential direction, the end edges supported by the inner surface of the housing,, 'a sleeve-type bearing housing with three foil arrangements distributed around an inner circumference of the bearing housing, each foil arrangementwherein insertion grooves are formed in the inner surface of the housing, the grooves extending along surface lines and projecting obliquely outwardly into the housing, each of said grooves holding one of the end edges and one end edge of the associated corrugated foil, and wherein with a circular cross-sectional inner contour of the bearing housing the corrugated foils have corrugated heights that decrease starting from a respective central region in relation to the circumferential direction of the bearing housing towards their respective end edges.2. A foil bearing according to claim 1 , wherein the insertion grooves hold the end edges of the top foil and the end edges ...

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03-01-2019 дата публикации

OIL-RETAINING SINTERED BEARING AND METHOD OF PRODUCING THE SAME

Номер: US20190003527A1
Принадлежит:

An oil-retaining sintered bearing in which friction coefficient can be reduced and a sliding property as a bearing can be improved by supplying a sufficient amount of oil to a sliding surface and preventing the supplied oil from moving to an interior from the sliding surface; a sliding surface supporting an outer peripheral surface of a shaft and a helical oiling surface around a shaft axis of a bearing hole are adjacently formed on an inner peripheral surface of the bearing hole into which the shaft is inserted; a surface open rate at the sliding surface is not larger than 10%; and a surface open rate at the oiling surface exceeds 10%. 1. An oil-retaining sintered bearing comprising:a bearing hole;a sliding surface supporting an outer peripheral surface of a shaft; andan oiling surface, whereinthe sliding surface and the oiling surface are adjacently formed on an inner peripheral surface of the bearing hole into which the shaft is inserted;a surface open rate at the sliding surface is not larger than 10%; anda surface open rate at the oiling surface is larger than 10%.2. The oil-retaining sintered bearing according to claim 1 , wherein the oiling surface is formed helically around a shaft axis of the bearing hole.3. The oil-retaining sintered bearing according to claim 2 , wherein the sliding surface is formed at both ends of the inner peripheral surface of the bearing hole on whole circumference.4. The oil-retaining sintered bearing according to claim 2 , whereinwhen a length of the bearing hole is “b”; a helical angle of the oiling surface to the shaft axis is “θ”; a width of the oiling surface is “W”; and an area rate of the sliding surface is “a”,sin θ≥(W/((1−a)×b)) and“a” is not smaller than 0.4 and smaller than 1.0.5. A method of producing the oil-retaining sintered bearing according to claim 1 , comprising:a forming step of a pressurized powder body forming a pressurized powder body by filling and pressurizing material powder in a cylindrical space between a ...

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20-01-2022 дата публикации

INTEGRATED RETAINING RING AND BUSHING

Номер: US20220018386A1
Принадлежит:

A piston actuated drilling tool includes a housing, a top sub, a piston and a drive sub. The piston has a nose at its forward end that is slidably mounted for reciprocating movement within the housing and which strikes a mandrel located at the forward end of the housing. An integrated retaining and bushing system has a retaining ring arranged for preventing the mandrel from detaching from the rest of the tool. The retaining ring encases a bushing for co-operation with the piston nose to stabilise and guide the piston and provide a timing event for percussion of the tool. 1. A piston actuated drilling tool comprising:a housing;a top sub;a piston having a nose at a forward end that is slidably mounted for reciprocating movement within the housing and which strikes a mandrel located at a forward end of the housing;a drive sub; andan integrated retaining and bushing system including a retaining ring arranged for preventing the mandrel from detaching from the tool, the retaining ring encasing a bushing for co-operation with the piston nose to stabilize and guide the piston.2. The piston actuated drilling tool according to claim 1 , wherein the retaining ring is split into at least two parts.3. The piston actuated drilling tool according to claim 2 , wherein claim 2 , one or more O-rings are used to hold the at least two parts of the retaining ring together.4. The piston actuated drilling tool according to claim 1 , wherein the retaining ring is a one-piece body.5. The piston actuated drilling tool according to claim 1 , wherein the retaining ring is made of a different material than the bushing.6. The piston actuated drilling tool according to claim 1 , wherein the bushing is selected from: a polymer claim 1 , a glass filled or reinforced polymer claim 1 , a non-ferrous metal claim 1 , and a heat treated or coated steel.7. The piston actuated drilling tool according to claim 1 , wherein mating surfaces between a radially inner surface of the retaining ring and a radially ...

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20-01-2022 дата публикации

BEARING, COUPLIING MECHANISM FOR USE THEREIN, AND PRELOAD APPLICATION METHOD FOR USE IN COUPLING MECHANISM

Номер: US20220018388A1
Автор: Matsumoto Toshiro
Принадлежит:

Proposed is a novel coupling mechanism capable of applying a preload to a ball portion and a socket portion which constitute a coupling mechanism of a titling pad bearing, without using a spring element. 1. A coupling mechanism for a tilting pad bearing , which couples a pad and a support in such a manner that the pad can be tilted with respect to the support , and comprises a first ball portion and a first socket portion to which a preload is applied ,a contact surface between the first ball portion and the first socket portion serving as a first sliding spherical surface,the coupling mechanism further comprising a second ball portion and a second socket portion that come into contact with each other on a contact surface serving as a second sliding spherical surface,wherein a center of curvature of the first sliding spherical surface coincides with a center of curvature of the second sliding spherical surface.2. The coupling mechanism according to claim 1 , wherein a radius of curvature of the first sliding spherical surface is longer than a radius of curvature of the second sliding spherical surface on a virtual radial line from the center of curvature claim 1 , the virtual radial line intersecting both the first ball portion and the second ball portion.3. The coupling mechanism according to claim 2 , wherein the center of curvature exists between the first and second sliding spherical surfaces and a sliding surface of the pad claim 2 , or on an opposite side across the sliding surface as viewed from the first and second sliding spherical surfaces.4. The coupling mechanism according to claim 2 , wherein the center of curvature is farther from the sliding surface of the pad than from the first and the second sliding spherical surface.5. The coupling mechanism according to claim 1 , wherein a center of the second sliding spherical surface exists on a virtual line connecting a center of the first sliding spherical surface and the center of curvature.6. The coupling ...

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08-01-2015 дата публикации

Motor rotor bearing with temperature-activated stabilizers

Номер: US20150008780A1
Принадлежит: GE Oil and Gas ESP Inc

A bearing assembly for use in an electric motor has a temperature-activated stabilizer to reduce vibration. The electric motor has a stator assembly and a rotor assembly and the bearing assembly includes a collar that has an outer diameter that is less than an inner diameter of the stator assembly. The bearing assembly further includes a temperature-activated stabilizer assembly that includes an extensible member positioned within the stabilizer recess. Under a first temperature the extensible member has a first volume and under a second temperature the extensible member expands to a second volume that is larger than the first volume. As the extensible member expands, the extensible member comes into contact with the stator assembly.

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08-01-2015 дата публикации

SINTERED BEARING

Номер: US20150010254A1
Принадлежит: NTN CORPORATION

Provided is a sintered bearing () including an inner layer () and an outer layer () formed by integral molding, the sintered bearing () having a bearing surface (A) formed on an inner peripheral surface () of an inner layer (). The inner layer () is made of sintered metal containing Fe and a hardness increasing element (such as Ni or Mo). The outer layer () is made of sintered metal containing Fe and no hardness increasing element. A concentration gradient of the hardness increasing element is present at an interface between the inner layer () and the outer layer (). 1. A sintered bearing , comprising:an inner layer; andan outer layer formed on a radially outer side of the inner layer,the inner layer and the outer layer being formed by integral molding,the sintered bearing having a bearing surface formed on any one of an inner peripheral surface of the inner layer and an outer peripheral surface of the outer layer,wherein one of the inner layer and the outer layer, which has the bearing surface, is made of sintered metal containing Fe and a hardness increasing element, and another of the inner layer and the outer layer, which has no bearing surface, is made of sintered metal containing Fe and no hardness increasing element, andwherein a concentration gradient of the hardness increasing element is present at an interface between the inner layer and the outer layer.2. The sintered bearing according to claim 1 , wherein the hardness increasing element comprises at least one kind selected from among Ni claim 1 , Mo claim 1 , Mn claim 1 , and Cr.3. The sintered bearing according to claim 1 , wherein the bearing surface is formed on the inner peripheral surface of the inner layer.4. The sintered bearing according to claim 3 , wherein the inner layer is made of sintered metal containing Fe claim 3 , Cu claim 3 , C claim 3 , Ni claim 3 , Mo claim 3 , and inevitable impurities as the balance claim 3 , and the outer layer is made of sintered metal containing Fe claim 3 , Cu ...

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11-01-2018 дата публикации

Cartridge assembly with a flexible thrust ring assembly for a track chain

Номер: US20180009491A1
Автор: Eric James Johannsen
Принадлежит: Caterpillar Inc

A flexible thrust washer member comprises a body including an annular skirt portion that defines an outer diameter and a central aperture having an inner diameter, wherein the body has a conical configuration that defines a conical axis and a radial direction and the outer diameter of the annular skirt portion is spaced away from the central aperture along the conical axis and along the radial direction, defining an axial dimension and a radial dimension and the body defines at least two slits that separate the annular skirt portion into a plurality of fingers.

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12-01-2017 дата публикации

Tilting Segment For A Shaft Bearing Device, And Shaft Bearing Device

Номер: US20170009805A1
Принадлежит: MAN Diesel and Turbo SE

Tilting segment for a shaft bearing device, with a base body that has a slide bearing face bounded by a segment leading edge extending in axial direction, a segment trailing edge likewise extending in axial direction, and by lateral edges extending in circumferential direction between the segment leading edge and the segment trailing edge. A groove that extends in axial direction and is located nearer to the segment trailing edge than it is to the segment leading edge is incorporated in the slide bearing face.

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12-01-2017 дата публикации

SYSTEMS INCLUDING BEARING ASSEMBLY HAVING ENHANCED SELECTED SUPPORT FOR NONUNIFORM LOADS

Номер: US20170009808A1
Принадлежит:

Embodiments of the invention are directed to bearing assemblies configured to effectively carry nonuniform loads, bearing apparatuses including such bearing assemblies, and methods of operating such bearing assemblies and apparatuses. In an embodiment, under some operational conditions, one or more portions of the bearing assemblies and bearing apparatus may be preferentially loaded, such as to carry preferentially higher loads (e.g., radial and/or axial loads) than other portion(s) of the bearing assemblies and bearing apparatus. 1. A system , comprising:a motor; and [ a first support ring;', 'a plurality of first superhard bearing elements mounted to the first support ring, the plurality of first superhard bearing elements being distributed about an axis, each of the plurality of first superhard bearing elements having a first superhard material including a first superhard bearing surface;', 'a first reinforced portion that has a first span angle defined by two reference lines intersecting at the axis, wherein a first reinforced superhard bearing surface area is defined by each first superhard bearing surface entirely within the first span angle and any portion of any other first superhard bearing surface partially within the first span angle; and', 'a first unreinforced portion defined by a first vertical angle of the first span angle, wherein a first unreinforced portion superhard bearing surface area is defined by each first superhard bearing surface entirely within the first vertical angle and any portion of any other first superhard bearing surface partially within the first vertical angle;', 'wherein the first reinforced superhard bearing surface area is at least 8% greater than the first unreinforced superhard bearing surface area;, 'a first bearing assembly including, 'a second bearing assembly including a plurality of second superhard bearing elements, each of the plurality of second superhard bearing elements including a superhard material having a ...

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12-01-2017 дата публикации

HALF THRUST BEARING AND BEARING DEVICE USING THE SAME

Номер: US20170009809A1
Принадлежит:

The present invention provides a half thrust bearing in a semicircular ring shape for receiving an axial force of the crankshaft of the internal combustion engine, that include a back metal layer, a bearing alloy layer and a resin slide layer, or a bearing alloy layer and a resin slide layer. The resin slide layer constitutes a slide surface receiving the axial force, and the half thrust bearing includes thrust reliefs formed on a side receiving the axial force and adjacent to both circumferential end portions thereof so that a wall thickness of the half thrust bearing becomes thinner toward the circumferential end portions. At least the thrust relief on a rear side in a rotational direction of the crankshaft has a thrust relief length which becomes larger toward an outer end portion from an inner end portion in a radial direction of the half thrust bearing. 1. A half thrust bearing in a semicircular ring shape for receiving an axial force of a crankshaft of an internal combustion engine , the half thrust bearing comprising a bearing alloy layer and a resin slide layer , or a back metal layer , a bearing alloy layer and a resin slide layer , the resin slide layer constituting a slide surface receiving the axial force , whereinthe half thrust bearing comprises thrust reliefs formed on a side receiving the axial force and adjacent to both circumferential end portions of the half thrust bearing, so that a wall thickness of the half thrust bearing becomes thinner toward the circumferential ends, andat least the thrust relief on a rear side in a rotational direction of the crankshaft has a thrust relief length which becomes larger from an inner end portion toward an outer end portion in a radial direction of the half thrust bearing.2. The half thrust bearing according to claim 1 , wherein at least the thrust relief on the rear side in the rotational direction of the crankshaft has a thrust relief depth at a circumferential end surface of the half thrust bearing that ...

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12-01-2017 дата публикации

FLOATING BUSH BEARING DEVICE AND TURBOCHARGER PROVIDED WITH THE BEARING DEVICE

Номер: US20170009810A1
Принадлежит: MITSUBISHI HEAVY INDUSTRIES, LTD.

An object is to provide a floating bush bearing device including a circumferential groove over the entire circumference of an outer peripheral surface of a floating bush while ensuring that a pressing force is applied by lubricant oil to the floating bush to reduce oscillation, as well as a turbocharger provided with the bearing device. A floating bush bearing device includes: a rotary shaft disposed rotatably inside a bearing hole of a casing; a floating bush surrounding the rotary shaft; an oil-feed hole of lubricant oil having an opening on an inner peripheral surface of the bearing hole; a plurality of communication holes formed on the floating bush, each extending between an inner peripheral surface and an outer peripheral surface of the floating bush, and disposed at intervals in a circumferential direction of the floating bush; and a circumferential groove formed on the outer peripheral surface of the floating bush or the inner peripheral surface of the bearing hole and extending over an entire circumference of the outer peripheral surface of the floating bush or the inner peripheral surface of the bearing hole, the circumferential groove passing through openings of the plurality of communication holes or facing the openings of the plurality of communication holes. The circumferential groove has a cross-sectional area which varies in accordance with a circumferential position. 1. A floating bush bearing device , comprising:a casing including a bearing hole;a rotary shaft disposed rotatably inside the bearing hole;a floating bush disposed rotatably inside the bearing hole and surrounding the rotary shaft;an oil-feed hole of lubricant oil, the oil-feed hole having an opening on an inner peripheral surface of the bearing hole;a plurality of communication holes formed on the floating bush, each of the communication holes extending between an inner peripheral surface and an outer peripheral surface of the floating bush, and disposed at intervals in a ...

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10-01-2019 дата публикации

GIMBAL SYSTEM

Номер: US20190009866A1
Автор: Jones Peter
Принадлежит: LORD Corporation

A gimbal () has an intermediate plate (), a first plate () offset from the intermediate plate () in a first direction, a first bearing () having a first rotational axis connected between the intermediate plate () and the first plate (), a second plate () offset from the intermediate plate () in a second direction opposite the first direction, and a second bearing () having a second rotational axis connected between the intermediate plate () and the second plate (). 1200. A gimbal () , comprising:{'b': '202', 'an intermediate plate ();'}{'b': 204', '202, 'a first plate () offset from the intermediate plate () in a first direction;'}{'b': 208', '209', '202', '204, 'a first bearing () including a first rotational axis () connected between the intermediate plate () and the first plate ();'}{'b': 206', '202, 'a second plate () offset from the intermediate plate () in a second direction opposite the first direction; and'}{'b': 212', '213', '202', '206, 'a third bearing () including a third rotational axis () connected between the intermediate plate () and the second plate ().'}2200209213. The gimbal () of claim 1 , wherein the first rotational axis () is substantially orthogonal to the third rotational axis ().3200209213. The gimbal () of claim 1 , wherein the first rotational axis () intersects the third rotational axis ().4200202204206217. The gimbal () of claim 1 , wherein each of the intermediate plate () claim 1 , the first plate () claim 1 , and the second plate () comprise a notch having a concavity open toward a radial direction ().5200209213217. The gimbal () of claim 4 , wherein at least one of the first rotational axis () and the third rotational axis () is angularly offset by 45 degrees relative to the radial direction ().6200209213. The gimbal () of claim 5 , wherein the first rotational axis () is substantially orthogonal to the third rotational axis ().7200200. The gimbal () of claim 1 , wherein the gimbal () is configured to withstand at least a 200 mT ...

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14-01-2016 дата публикации

Supercharging device

Номер: US20160010500A1

A supercharging device may include a rotor mounted in a bearing housing via at least one bearing bush. The bearing bush may include an oil bore. An oil film may be disposed at least one of between the rotor and the bearing bush and between the bearing bush and the bearing housing. The bearing housing may include at least one oil feed duct for lubricating the bearing bush. At least one of the oil feed duct and the oil bore may be configured with respect to the bearing bush such that the bearing bush during the operation of the supercharging device is positively accelerated in a direction of rotation of the rotor via an oil jet communicated from the oil feed duct.

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