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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Применить Всего найдено 4179. Отображено 100.
13-04-2021 дата публикации

Подшипниковый узел коленчатого вала двигателя внутреннего сгорания

Номер: RU0000203579U1
Автор: Юрий Викторович Костюрин
Принадлежит: Юрий Викторович Костюрин

Полезная модель относится к области машиностроения, в частности к подшипниковому узлу коленчатого вала двигателя внутреннего сгорания, преимущественно для транспортных средств с двухтактным двигателем. Подшипниковый узел коленчатого вала двигателя внутреннего сгорания содержит установленные на валу между упорными элементами симметрично расположенные относительно подшипника блоки уплотнения и элементы от проворота. Узел содержит радиальный двухрядный шариковый подшипник, при этом блок уплотнения состоит из алюминиевой втулки с уплотнителем, выполненным в виде сальника, установленным в ёё отверстие. Технический результат, на достижение которого направлена полезная модель, заключается в усовершенствовании конструкции подшипникового узла коленчатого вала, которое позволяет повысить стабильность, мощность и надёжность работы двигателя внутреннего сгорания за счёт увеличения его нагрузочной способности и устранения перетекания воздуха из одной камеры в другую. Применение в конструкции радиального двухрядного шарикового подшипника позволяет значительно увеличить нагрузочную способность и способность воспринимать не только значительные радиальные нагрузки, но и небольшую осевую нагрузку. Блок уплотнения за счёт установленного сальника не даёт перетекать воздуху из одной камеры в другую, что позволяет добиться устойчивой работы двигателя на малых оборотах 1200 об/м и до 2500 об/м, и холостом ходу; уменьшить вибрацию двигателя внутреннего сгорания на холостых оборотах; улучшить запуск двигателя в условиях низкой температуры; осуществить более точную регулировку карбюратора на соотношение топливной смеси с воздухом, что даёт двигателю работать на разных режимах и держать расход топлива в нужных пределах на каждом режиме работы, тем самым увеличивая мощность двигателя внутреннего сгорания. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 203 579 U1 (51) МПК F16C 9/02 (2006.01) F16C 3/06 (2006.01) F16C 19/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ...

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Номер записи: 1
16-02-2012 дата публикации

Crankshift Bearing Assembly

Номер: US20120039553A1
Автор: Einar Waage-Rasmussen
Принадлежит: Siv ing Per Olav Haughom AS

A crankshaft bearing assembly is for a reciprocating fluid-machine. The crankshaft bearing assembly comprises a shaft having a co-rotating first eccentric surrounded by a second eccentric. The second eccentric is adjustable around the first eccentric, and the second eccentric is surrounded by a bearing and a crankshaft bearing housing. The second eccentric is connected, by means of a coupling, to a shaft sleeve concentrically rotatable around the shaft. The coupling comprises a carrier which co-rotates with the shaft sleeve. The carrier, at a radial distance from the center axis of the shaft, is provided with a slide bolt projecting into a groove in a slide casing, the slide casing being fixedly connected to the second eccentric.

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Номер записи: 2
19-04-2012 дата публикации

Caged roller bearing, caged roller bearing assembly, and cage

Номер: US20120093452A1
Автор: Hiromitsu Kawai, Hitoshi Murakami, Katsufumi Abe, Masanori Sato
Принадлежит: NTN Corp

A caged roller bearing includes a plurality of rollers ( 1 ) and a roller retaining cage ( 2 ) having pockets ( 3 ) defined therein at circumferential locations thereof for accommodating the respective rollers ( 1 ) therein. A nickel plating layer, which is a plated backing layer ( 4 ), is applied to the entire surface of the roller retaining cage ( 2 ), and an Ni.PTFE plated layer ( 5 ), containing nickel and polytetrafluoroethylene, is applied to the surface of the nickel plating layer.

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Номер записи: 3
10-05-2012 дата публикации

Wear resistant lead free alloy sliding element method of making

Номер: US20120114971A1
Автор: Daniel Meister, David Saxton, Gerd Andler, Ing Holger Schmitt, James R. Toth
Принадлежит: Individual

A sliding element 20 , such as a bushing or bearing, includes a sintered powder metal base 24 deposited on a steel backing 22 . The base 24 includes a tin, bismuth, first hard particles 40 , such as Fe 3 P and MoSi 2 , and a balance of copper. In one embodiment, a tin overplate 26 is applied to the base 24 . A nickel barrier layer 42 can be disposed between the base 24 and the tin overplate 26 , and a tin-nickel intermediate layer 44 between the nickel bather layer 42 and the tin overplate 26 . In another embodiment, the sliding element 20 includes either a sputter coating 30 of aluminum or a polymer coating 28 disposed directly on the base 24 . The polymer coating 28 includes second hard particles 48 , such as Fe 2 O 3 . The polymer coating 28 together with the base 24 provides exceptional wear resistance over time.

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Номер записи: 4
14-06-2012 дата публикации

Sliding support structure for shaft member

Номер: US20120148180A1
Автор: Katsuhiro Ashihara, Motoichi Murakami, Naoto Koyamaishi, Ryuji Koike, Shigeru Hotta, Shoji Miyazaki, Shuzou Sanda, Yasuhiro Hikita, Yoshiki Ariizumi
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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Номер записи: 5
20-06-2013 дата публикации

Fibre optic laser machining equipment for etching grooves forming incipient cracks

Номер: US20130153554A1
Автор: Bruno Frei, Rudolf Von Niederhaeusern, Ulrich Duerr
Принадлежит: Rofin Lasag AG

A laser machining equipment for etching grooves in a wall of a mechanical part, or in a connecting rod for a spark ignition engine, includes a fiber optic laser device arranged to supply laser pulses. The fiber optic laser device is controlled so that laser pulses have a peak power of more than 400 W and at least two times greater than maximum mean power of the laser device, and duration of the laser pulses is below or within the nanosecond range of 1 ns to 1000 ns. The fiber optic laser device can be controlled in a quasi continuous wave (QCW) mode, or can be controlled in a Q-switch mode. The selected operating modes increase machining efficiency and produce a groove with an optimum transverse profile, particularly with a small mean radius of curvature at a bottom of the groove which then allows precise subsequent fracturing of the mechanical part with less force.

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Номер записи: 6
04-07-2013 дата публикации

IRON-BASED METAL BEARING CAP TO BE CAST INTO LIGHT METAL MEMBER

Номер: US20130170774A1
Автор: Mochida Hiroaki
Принадлежит:

An iron-based metal bearing cap according to the present invention to be cast as a core into a light metal member includes an arcuate portion which forms a bearing surface, left and right flange portions which are arranged and connected to opposite ends of the arcuate portion, and boss portions which are arranged to stand on the rear surfaces of the left and right flange portions and through which mounting bolts are inserted. The bosses are formed with grooves or projections. 16.-. (canceled)7. An iron-based metal bearing cap to be cast as a core into a light metal member , comprising:an arcuate portion which forms a bearing surface;left and right flange portions which are arranged and connected to opposite ends of the arcuate portion; andboss portions which are arranged to stand on the rear surfaces of the left and right flange portions and through which mounting bolts are inserted;wherein:each one of the boss portions is formed with groove;each one of the boss portions includes two bolt holes penetrating through each one of the flange portion and two bosses surrounding the bolt holes;the groove is formed between the two bosses; andthe bosses are coupled to each other by a rib arranged to cross the groove between the bosses at a leading end side.8. The iron-based metal bearing cap to be cast into the light metal member according to claim 7 , wherein:the boss portions are coupled to each other by a coupling beam at position where the rib is arranged.9. The iron-based metal bearing cap to be cast into the light metal member according to claim 8 , wherein:the boss portions include a pair of reinforcing beams which couple respective parts of the boss portions coupled to the coupling beam to the rear surface of the arcuate portion in diagonal directions.10. The iron-based metal bearing cap to be cast into the light metal member according to claim 8 , wherein:the bearing cap is cast and molded by casting dies which are matched at sites where the rib and the coupling beam ...

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Номер записи: 7
18-07-2013 дата публикации

MAIN BEARING FOR CRANKSHAFT OF INTERNAL COMBUSTION ENGINE

Номер: US20130182981A1
Автор: Ishigo Osamu, TOMITA Yuichi, YAMADA Motohira
Принадлежит: DAIDO METAL COMPANY LTD.

A main bearing for a crankshaft of an internal combustion engine is composed of a pair of semi-cylindrical bearings. An oil groove extending in a circumferential direction is formed on an inner circumferential surface of one semi-cylindrical bearing. The oil groove has the depth gradually decreasing toward a circumferential end surface of the one semi-cylindrical bearing, and defines a circumferential end portion on the circumferential surface without extending to an axial groove formed in a joint portion of the pair of semi-cylindrical bearings. An extension portion of the inner circumferential surface extends between the circumferential end portion and the axial groove, and a plurality of circumferential grooves extending in the circumferential direction is formed on the extension portion from the oil groove to the axial groove over an entire width of the circumferential end portion of the oil groove. 1. A main bearing for a crankshaft of an internal combustion engine for rotatably supporting a journal portion of the crankshaft ,wherein the main bearing is composed of a pair of semi-cylindrical bearings, and defines an axial direction and a circumferential direction,only one of the semi-cylindrical bearings comprises an oil groove formed on an inner circumferential surface thereof, the oil groove extends in the circumferential direction at least through a center portion of the one semi-cylindrical bearing in the circumferential direction, the depth of the oil groove from the inner circumferential surface gradually decreases toward a circumferential end surface of the one semi-cylindrical bearing so as to define a circumferential end portion of the oil groove on the inner circumferential surface, so that the oil groove does not extend to the circumferential end surface,the circumferential end surface of the one semi-cylindrical bearing to which the oil groove does not extend, and a circumferential end surface of the other semi-cylindrical bearing which is joined to ...

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Номер записи: 8
15-08-2013 дата публикации

SPLIT-TYPE SLIDING BEARING FOR CRANKSHAFT IN INTERNAL COMBUSTION ENGINE AND SPLIT-TYPE SLIDING BEARING DEVICE

Номер: US20130209014A1
Автор: Ishigo Osamu, KUWABARA Aisuke, Saito Yasushi
Принадлежит: DAIDO METAL COMPANY LTD.

A split-type sliding bearing for a crankshaft in an internal combustion engine incorporated in a split-type bearing housing. The sliding bearing consists of a pair of semi-cylindrical bearing bodies combined with each other to form a cylindrical body. The bearing housing has a cylindrical bearing retaining bore and consists of a pair of housing halves. One of the housing halves has a relatively lower stiffness, and the other has a relatively higher stiffness. One of the bearing bodies is held by the housing half having a relatively lower stiffness. The other bearing body is held by the housing half having a relatively higher stiffness. The bearing bodies have an equal outer diameter to each other, and both of the circumferential end parts of one bearing body have a larger thickness than those of the other bearing body prior to incorporation into the housing halves. 1. A split-type sliding bearing adapted for mounting on a crankshaft for an internal combustion engine , comprising:a pair of semi-cylindrical bearing bodies which are combined with each other to form a cylindrical body, and which are incorporated in a split-type bearing housing, having a cylindrical bearing retaining bore and comprising a pair of housing halves each corresponding to the respective semi-cylindrical bearing body when the semi-cylindrical bearing bodies are incorporated in the cylindrical bearing retaining bore,wherein the split-type bearing housing comprises one housing half having a lower stiffness, and another housing half having a higher stiffness,wherein the housing half of lower stiffness supports one of the pair of semi-cylindrical bearing bodies, which is a first semi-cylindrical bearing body, and the housing half of higher stiffness supports the remainder of the pair of semi-cylindrical bearing bodies, which is a second semi-cylindrical bearing body,wherein the first semi-cylindrical bearing body and the second semi-cylindrical bearing body have the following dimensional ...

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Номер записи: 9
29-08-2013 дата публикации

PLAIN BEARING AND BEARING DEVICE

Номер: US20130223776A1
Автор: Ishigo Osamu, KOUSHIMA Motohiko
Принадлежит: DAIDO METAL COMPANY LTD.

A plain bearing for supporting a crank shaft of an internal combustion engine is provided. The plain bearing is constituted by a pair of semicylindrical members. A crush relief is formed in an inner circumferential surface of the semicylindrical member, and a main cylindrical surface is formed in a region aside from the crush relief. The crush relief includes an outwardly convex curved surface and an inwardly convex curved surface. 1. A plain bearing for supporting a crank shaft of an internal combustion engine , the plain bearing comprising:a pair of semicylindrical members constituting the plain bearing, each semicylindrical member including:two crush reliefs, each crush relief arranged in a region adjacent to a circumferential end surface of an inner circumferential surface of the semicylindrical member and gradually reducing in thickness towards the circumferential end surface, anda main cylindrical surface aside from the crush reliefs in the inner circumferential surface of the semicylindrical member;wherein in each semicylindrical member one crush relief at a forward side in a rotation direction of the crank shaft or two crush reliefs at both sides include a radially outwardly convex curved surface at a side closer to the end surface and a radially inwardly convex curved surface at a side farther from the end surface.2. The plain bearing according to claim 1 , wherein the inwardly convex curved surface is formed to approach asymptotically to the main cylindrical surface.3. The plain bearing according to claim 1 , wherein the outwardly convex curved surface is formed in a cylindrical shape claim 1 , a center of the cylindrical shape being located inwardly in a radial direction of the semicylindrical member.41212. The plain bearing according to claim 1 , when the plain bearing is two-dimensionally developed claim 1 , wherein the main cylindrical surface is extended over a region of the crush relief to define a imaginary main cylindrical plane claim 1 , wherein a ...

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Номер записи: 10
05-09-2013 дата публикации

STRUCTURED DIRT DEPOSITORY IN SLIDING BEARING SURFACES

Номер: US20130230263A1
Автор: Aubele Thomas, Rittmann Stefan
Принадлежит:

The invention relates to a sliding bearing and to a method for producing a sliding bearing, having at least one groove formed on the sliding surface which extends at least partially in the axial direction of a mounted shaft, ends on at least one end before the edge of the bearing and is deeper than 80 μm and/or wider than 150 μm, so that dirt and/or particles can be embedded. 1. A sliding bearing comprising:at least one groove formed on a sliding surface of said sliding bearing, which extends at least in part in the axial direction, ends at at least one end before an edge of the bearing and is deeper than 50 μm or wider than 100 μm or both deeper than 50 μm and wider than 100 μm so that dirt and/or particles can be embedded, andat least one depository on a depository surface formed as pocket hole, which is at least one of the sliding surface or a surface of an oil supply groove, whereinthe depository is a recess that is open towards the depository surface, has a depository wall and extends away from the depository surface into the bearing, and whereinthe depository wall in the direction of extension forms with a reference direction an acute angle, the reference direction being the tangent of the depository surface at the intersection of the depository wall with the depository surface in the direction away from the depository.2. The sliding bearing according to claim 1 , wherein the at least one groove is up to 80 μm deep.3. The sliding bearing according to wherein the at least one groove is up to 150 μm wide.4. The sliding bearing according to claim 1 , wherein the at least one groove is at an inclination to the axial direction.5. The sliding bearing according to claim 1 , wherein there are at least two grooves formed in the axial direction one next to the other and having an inclination in different directions.6. The sliding bearing according to claim 5 , wherein the at least two plural grooves are formed at a specific point claim 5 , seen in axial direction claim ...

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Номер записи: 11
26-09-2013 дата публикации

HALF BEARING AND PLAIN BEARING

Номер: US20130251293A1
Автор: Ishigo Osamu, KOUSHIMA Motohiko
Принадлежит: DAIDO METAL COMPANY LTD.

A half bearing for supporting a crank shaft of an internal combustion engine is provided. The half bearing having a main semi-cylindrical part, two crush reliefs, and two transition regions. Each crush relief has a depth from a imaginary plane at a circumferential end surface of the half bearing greater than a depth from the imaginary plane at a connecting position between each crush relief and the transition region. A plurality of circumferential grooves extend in a circumferential direction in the main semi-cylindrical part along their entire length in the circumferential direction, and the plurality of circumferential grooves extend also in the transition region continuously. 1. A half bearing for supporting a crank shaft of an international combustion engine , the half bearing comprising:a main semi-cylindrical part including a center portion of the half bearing in a circumferential direction;two crush reliefs, each crush relief having a thickness arranged at each circumferential end of the half bearing, the thickness of the crush relief being thinner than that of the main semi-cylindrical part; andtwo transition regions, each transition region having a thickness arranged between the main semi-cylindrical part and the crush relief, the thickness of the transition region being thinner towards the crush relief,wherein, when an imaginary inner circumferential plane is assumed to extend over the crush relief, the imaginary plane being coplanar with the inner circumferential surface of the main semi-cylindrical part,each crush relief has a depth from the imaginary plane at a circumferential end surface of the half bearing greater than a depth from the imaginary plane at a connecting position between each crush relief and each transition region, andwherein a plurality of circumferential grooves extend in a circumferential direction in the main semi-cylindrical part along their entire length in the circumferential direction, and the plurality of circumferential grooves ...

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Номер записи: 12
26-09-2013 дата публикации

BEARING APPARATUS FOR CRANKSHAFT OF INTERNAL COMBUSTION ENGINE

Номер: US20130251294A1
Автор: Ishigo Osamu, TOMITA Yuichi, YAMADA Motohira
Принадлежит: DAIDO METAL COMPANY LTD.

A bearing apparatus for a crankshaft of an internal combustion engine having a main bearing and a connecting rod bearing is provided. The main bearing comprises a pair of semi-cylindrical bearings, only one of which has an oil groove extending in a circumferential direction on an inner circumferential surface thereof. The oil groove is separated from an axial groove formed at a joint portion of the semi-cylindrical bearings by a separation inner circumferential surface of which a length L in the circumferential direction is smaller than a length L of an inlet opening of a journal portion in the circumferential direction. The connecting rod bearing also comprises a pair of semi-cylindrical bearings, and has axial grooves and crush reliefs with appropriate dimensions at joint portions thereof. 1. A bearing apparatus for a crankshaft of an internal combustion engine , comprising a main bearing for rotatably supporting a journal portion of the crankshaft , and a connecting rod bearing for rotatably supporting a connecting rod on a crankpin of the crankshaft , the crankshaft having a lubricating oil path formed therein so as to extend from the journal portion to the crankpin , an inlet opening of the lubricating oil path that is formed on an outer circumferential surface of the journal portion , and an outlet opening of the lubricating oil path that is formed on an outer circumferential surface of the crankpin , whereinthe main bearing is composed of a pair of first semi-cylindrical bearings, and only one of the first semi-cylindrical bearings comprises an oil groove formed on an inner circumferential surface thereof,the oil groove extends in a circumferential direction at least through a center portion in the circumferential direction of the one first semi-cylindrical bearing, and is disposed so that a center of the width of the oil groove in an axial direction is aligned with a center of the inlet opening of the journal portion, a circumferential end portion of the oil ...

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Номер записи: 13
31-10-2013 дата публикации

Bearing Arrangement For A Crankshaft Of An Internal Combustion Engine

Номер: US20130287325A1
Автор: Imkamp Heribert, Lange Niels P., Stocker Robert
Принадлежит: MAN Diesel & Turbo SE

A crankshaft bearing of a crankshaft of an internal combustion engine has a plain bearing formed of bearing shells, wherein a bearing shell () adjoins a cylinder crankcase () of the internal combustion engine by a bearing shell back () and adjoins the crankshaft to be bearing-supported by a bearing shell running surface (), wherein either the bearing shell running surface () or the bearing shell back () or a surface () of the cylinder crankcase () adjoining the bearing shell back () has a concave profile. 17-. (canceled)8. A crankshaft bearing of a crankshaft of an internal combustion engine comprising a plain bearing formed of bearing shells , said bearing shell adjoining a cylinder crankcase of the internal combustion engine by a bearing shell back and adjoining the crankshaft to be bearing-supported by a bearing shell running surface; and wherein either the bearing shell running surface or the bearing shell back or a surface of the cylinder crankcase adjoining the bearing shell back has a concave profile.9. The crankshaft bearing according to claim 8 , characterized in that the concave profile is circumferential in circumferential direction.10. The crankshaft bearing according to claim 8 , characterized in that the concave profile varies in circumferential direction.11. The crankshaft bearing according to claim 8 , wherein the concave profile does not vary in circumferential direction.12. The crankshaft bearing according to claim 8 , wherein a concave curve profile of the concave profile extends in radial direction and axial direction.13. The crankshaft bearing according to claim 12 , wherein the concave curve profile is formed such that the radial curve depth thereof is deepest in the axial center.14. The crankshaft bearing according to claim 8 , wherein the concave profile is exclusively disposed at one of a bottom bearing shell of the plain bearing and a portion of the cylinder crankcase adjoining the bottom bearing shell of the plain bearing.15. The ...

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Номер записи: 14
05-12-2013 дата публикации

SECURING CLIP COMPRISING A LOCKING MECHANISM

Номер: US20130319172A1
Автор: Uhl Albert
Принадлежит: GMT GUMMI-METALL-TECHNIK GMBH

Draw-pull bar used for guidance and mechanical mount with a locking mechanism consisting of two locking elements, namely a securing clip with a locking nose shaped as partial ring that is arranged on the toothed ring of the tubular body of the draw-pull bar by means of swivel arm and in which the locking nose engages when the securing clip swivels to the toothed ring. A bar with a hinge is fitted to one side of the resilient partial ring. When using a locking element, the bar snaps into the other end of the partial ring in such a way that the partial ring is clamped tight and an unintentional turning or undoing of the two locking elements is prevented without previous opening of the bar. 1) Draw-pull bar with a securing clip presenting a partial ring which surrounds three quarters of the toothed ring of the draw-pull bar and disposing of two bent up ends , characterised in that a locking mechanism is fitted to both ends consisting of a bar made of resilient stainless steel preferably which is moveably attached by a hinge on the one side and of an angularly shaped resilient tongue as a complementary element on the other side which is suitable to enclose the other bent up end of the partial ring in an interlocking manner.2) The locking mechanism according to characterised in that the hinge is shaped in such a way that the bar can be opened with a sufficiently wide angle of 90 degrees preferably.3) The locking mechanism according to and characterised in that the hinge consists of two separate locking noses which are pushed into the two recesses of the bent up end of the partial ring provided for this purpose claim 1 , thus connecting the hinge firmly but moveably to the partial ring.4) The locking mechanism according to to characterised in that the resilient claim 1 , freely moveable end of the bar has an accurately fitting in-bent angle complementary to the other bent up end of the partial ring claim 1 , snapping into the partial ring in an interlocking manner.5) The ...

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Номер записи: 15
05-12-2013 дата публикации

ZINC-FREE SPRAY POWDER, COPPER-CONTAINING THERMAL SPRAY LAYER, AS WELL AS METHOD OF MANUFACTURING A COPPER-CONTAINING THERMAL SPRAY LAYER

Номер: US20130319367A1
Автор: Distler Bernd, Ernst Peter
Принадлежит:

The invention relates to a zinc-free spray powder for thermally coating a substrate, in particular for thermally coating a bearing part of a bearing apparatus, which spray powder has the following composition except for unavoidable contaminants: tin=5% to 30% weight percent; aluminum=0.1% to 5% weight percent; iron=at most 1% weight percent, and copper=difference to 100% weight percent. The invention furthermore relates to a layer system applied via thermal spraying, a work piece, particularly a connecting rod, as well as a spray method for manufacturing a spray layer. 1. A zinc-free spray powder for thermally coating a substrate , in particular for thermally coating a bearing part of a bearing apparatus , which spray powder has the following composition except for unavoidable contaminants:Tin=5% to 30% weight percent;Aluminum=0.1% to 5% weight percent;Iron=at most 1% weight percent;Copper=difference to 100% weight percent.2. A spray powder in accordance with claim 1 , wherein the spray powder includes a tin content of between 15% and 25% weight percent claim 1 , preferably of 20% weight percent tin.3. A spray powder in accordance with claim 1 , wherein the spray powder includes an aluminum content of between 0.5% and 2% weight percent claim 1 , preferably of 1% weight percent aluminum.4. A spray powder in accordance with claim 1 , wherein the spray powder includes at most an iron content of 0.5% weight percent claim 1 , preferably of at most 0.2% weight percent iron.5. A spray powder in accordance with claim 1 ,wherein the size of the particles of the spray powder lies between 5 μm and 120 μm, preferably between 10 μm and 60 μm.6. A spray powder in accordance with claim 1 , wherein the spray powder is manufactured via gas atomization claim 1 , water atomization claim 1 , sintering claim 1 , flash drying claim 1 , or mechanical alloying.7. A zinc-free layer system applied via thermal spray claim 1 , having a surface layer claim 1 , in particular a bearing layer of a ...

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Номер записи: 16
26-12-2013 дата публикации

BEARING STRUCTURE FOR INTERNAL COMBUSTION ENGINE

Номер: US20130343683A1
Автор: HOTTA Yoshihiro, OHMIYA Yasuhiro, SANDA Shuzou, SHIMAZU Takashi
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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Номер записи: 17
02-01-2014 дата публикации

PLAIN BEARING HALF LINER

Номер: US20140003750A1
Автор: Grooteboer Thomas, Lehmann Uwe
Принадлежит:

The invention relates to a plain bearing half liner for a crankshaft main bearing (), with a slot () which extends in the circumferential direction over an angle of 90 to 170°, is closed at both circumferential ends of the plain bearing half liner and passes radially through the plain bearing half liner, and with an otherwise oil-groove-free sliding surface () on the inside of said plain bearing half liner. 1. A plain bearing shell for main crankshaft bearing with a slot arranged in circumferential direction extending over an angle of 90 to 170° , sealed at both circumferential ends of the plain bearing shell and a slot intersecting the plain bearing shell in a radial direction with an otherwise oil groove-free plain surface on the inside face , wherein the slot tapers towards at least one of its two circumferential ends in the form of a conical area and towards the vertex of the plain bearing shell in the axial direction.2. The plain bearing shell according to claim 1 , wherein the slot extends in the circumferential direction over an angle of 130 to 165°.3. The plain bearing shell according to claim 1 , with an exposed surface on the inside face at each of its circumferential ends claim 1 , wherein the slot ends in circumferential direction before both exposed surface areas.4. The plain bearing shell in accordance with claim 1 , wherein the taper begins in a range of 30° to 60° before the circumferential end of the plain bearing shell.5. The plain bearing shell in accordance with claim 1 , wherein the slot is rounded at both of its circumferential ends.6. The plain bearing shell in accordance with claim 1 , wherein the slot occupies a proportion of surface area Fof the total plain area Fbetween 12% and 28%.7. The plain bearing shell in accordance with claim 1 , wherein the slot is bridged by one or more webs claim 1 , whereby the webs occupy a total proportion of surface area Fthat does not exceed 20% of the surface area Fof the slot including the webs.8. The ...

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Номер записи: 18
30-01-2014 дата публикации

Ball-and-socket joint member

Номер: US20140030007A1
Автор: Gwenole Yves LE JEUNE, Michel Seneclauze, Yves Maheo
Принадлежит: SKF Aerospace France SAS

The ball-and-socket joint member includes an inner ring, of a general shape of revolution around a first axis, having an outer surface provided with an inner raceway, an outer ring, of a general shape of revolution around a second axis, having an inner surface provided with an outer raceway, and at least one row of balls aligned circumferentially, extending radially between the inner raceway and the outer raceway. The outer surface of the inner ring comprises a portion with a generally truncated sphere shape, forming the inner raceway. The inner surface of the outer ring comprises, for each row of balls, a groove of complementary shape to that of the balls of this row, said groove forming the outer raceway.

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Номер записи: 19
13-02-2014 дата публикации

ROLLING TOOL ASSEMBLIES FOR CRANKSHAFT ROLLING MACHINES

Номер: US20140041433A1
Автор: Goodin Kenneth M., St. Pierre Marc D.
Принадлежит: Ingersoll CM Systems

A rolling tool assembly is provided that has a generally three-piece housing construction including a main, generally C-shaped body or frame member and a pair of opposing side plate members, that are fastened together to close off the open sides of the generally C-shaped body member for forming an interior space into which the remaining components of the rolling tool assembly can be mounted. In one alternative, the body member is made to be of a standard size with the side plate members being custom-made so that the side plate members vary in predetermined dimensions thereof to correspond to the size of the crankshaft bearing to be rolled. In another alternative, the side plate members are made to be of standard size while the body member is custom-made to vary in predetermined dimensions thereof to correspond to the size of the crankshaft bearing to be rolled. 1. A rolling tool assembly for rolling crankshaft bearings , the rolling tool assembly comprising:a housing;at least one roller mounted to the housing;a main C-shaped body member of the housing having open sides; anda pair of opposing side plate members configured to be secured to the C-shaped body member to close the open sides thereof so that the housing has a three-piece construction.2. The rolling tool assembly of wherein one of the C-shaped body member and the pair of side plate members remains the same to be of standardized size for rolling different size crankshaft bearings while the other of the C-shaped body member and the pair of side plate members varies in dimensions to be customized in size depending on size of the crankshaft bearing to be rolled. This application claims benefit under 35 U.S.C. §119 (e) to U.S. Provisional Application No. 61/681,372, entitled “Rolling Tool Assemblies for Crankshaft Rolling Machines” filed Aug. 9, 2012 having attorney docket number 7802-102222-U.S., the contents of which are incorporated herein by reference in its entirety.The invention relates to rolling tool ...

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Номер записи: 20
20-02-2014 дата публикации

Crank drive

Номер: US20140050429A1
Автор: Alex De Souza Rodrigues, Luis Antonio Fonseca Galli, Sergio Srefamp Ruerreiro, Walter Tavares Oliveira
Принадлежит: ThyssenKrupp Metalurgica Campo Limpo Ltda

A crank drive includes a crankshaft journal having a concave-shaped surface, a bearing element in which the crankshaft journal is rotatably mounted, and a bearing shell disposed between the crankshaft journal and the bearing element and having a first convex-shaped surface matched with the concave-shaped surface of the crankshaft journal. The bearing shell has a second surface associated with the bearing element and is constructed such that the bearing shell has a non-constant cross section in the longitudinal direction of the crankshaft journal. The bearing element surface facing the bearing shell is adapted to the second surface of the bearing shell regarding the shape of the bearing element surface, and the second surface of the bearing shell is cylindrical or concave and has a smaller curvature than the concave-shaped surface of the crankshaft journal.

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Номер записи: 21
05-01-2017 дата публикации

Non-concentric protruding shaft fixed bearing reciprocating impact part for implementing reciprocating impact part non-concentric protruding shaft fixed bearing method

Номер: US20170002656A1
Автор: Suhua LIU
Принадлежит: Individual

A reciprocating impact part non-concentric protruding shaft fixed bearing method, comprising: arranging an eccentric shaft section ( 12 ) and a power shaft section ( 11 ), arranging eccentric shaft section ( 12 ) bearings ( 8 ) on the section ( 12 ), arranging power shaft section bearings ( 5 ) on the section ( 11 ); arranging power shaft section bearing retaining rings ( 10 ) and eccentric shaft section bearing retaining rings ( 9 ) to block the bearings ( 5 ) and ( 8 ), respectively; arranging connecting rods ( 2 ) as separate snap-fitted crankshaft connecting rods or integrated sleeved crankshaft connecting rods, fitting the latter onto the bearing ( 8 ); arranging a base ( 1 ), arranging the bearings ( 5 ) thereon, such that they support the sections ( 11 ) and ( 12 ); arranging a power source component ( 3 ), such that it drives the section ( 11 ) to rotate and the section ( 11 ) drives the rods in reciprocating impact. Also provided is a non-concentric protruding shaft fixed bearing reciprocating impact part for implementing the method.

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Номер записи: 22
05-01-2017 дата публикации

SHAFT ASSEMBLY

Номер: US20170002766A1
Автор: Demeulenaere Xavier, Michel Mark
Принадлежит:

A shaft assembly may include two or more Poka-Yoke bearing caps, each Poka-Yoke bearing cap having a pair of reference bores offset from a central axis of the bearing cap by differing offset distances, and each bearing cap defining a semi-circular recess that is positioned so as to align in use a central axis of the semi-cylindrical recess in the bearing cap with an axis of rotation of a shaft rotatably supported by the bearing cap. The differing offsets of the reference bores prevent the bearing cap from being assembled in a reversed orientation. To ensure that each bearing cap can only be fitted in one position, a centre spacing between the first and second reference bores of each bearing cap is different to the centre spacing used for other bearing caps used to support a single shaft. 1. A shaft assembly comprising a shaft rotatably supported for rotation about an axis of rotation by at least two bearing support assemblies , each bearing support assembly comprising a bearing support structure defining first and second reference bores and a first semi-cylindrical recess having a central axis , each bearing support assembly further comprising a bearing cap having first and second feet joined by a bridge portion that defines a second semi-cylindrical recess for supporting the shaft , the first foot of the bearing cap having a first reference bore formed therein for accommodating in use a first location dowel and the second foot of the bearing cap having a second reference bore formed therein for accommodating in use a second location dowel , the first reference bore of the bearing cap being offset from a central axis of the second semi-cylindrical recess by a first distance and the second reference bore of the bearing cap being offset from the central axis of the second semi-cylindrical recess by a second distance that is different to the first distance , each bearing cap being fastened to the bearing support structure by a pair of bolts and by the first and second ...

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Номер записи: 23
04-01-2018 дата публикации

Split bearing cage

Номер: US20180003230A1
Автор: Franziska Meyer, Juergen Weiglein
Принадлежит: SKF AB

A split bearing cage for a rolling-element bearing assembly includes a first bearing cage segment and a second bearing cage segment each having two side ring sections axially spaced apart by a plurality of bridges. Adjacent pairs of the bridges define rolling-element receiving pockets for receiving rolling elements of the rolling-element bearing assembly and for holding the rolling elements spaced apart from each other and for guiding the rolling elements. The first bearing cage segment is connected to the second bearing cage segment via a swivel joint that may be formed of a bolt element on a first end of the first bearing cage segment and an at least partial eyelet on the first end of the second bearing cage segment.

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Номер записи: 24
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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Номер записи: 25
12-01-2017 дата публикации

HALF THRUST BEARING AND BEARING DEVICE USING THE SAME

Номер: US20170009809A1
Автор: OZAWA Yoshihiro, Tanaka Shiho
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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Номер записи: 26
09-01-2020 дата публикации

Offset tie rod joint

Номер: US20200010114A1
Автор: Robby Gordon
Принадлежит: Individual

An apparatus and a method are provided for an offset tie rod joint for vehicle steering systems. The offset tie rod joint comprises a ball rotatably retained within a casing that is disposed in an opening of an offset housing. A threaded shank fixedly coupled with the offset housing is received by a steering rod. The opening is displaced from a longitudinal axis of the threaded shank by a distance that provides clearance between the offset housing and a spindle assembly during articulation of the spindle assembly during steering. A rear backstop and a front snap-ring in a groove retain the casing within the opening. A bore extending through the ball receives a bolt that fixates the ball between parallel prongs of the spindle assembly. A misalignment spacer on each side of the ball provides clearance for rotation of the ball within the offset housing.

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Номер записи: 27
14-01-2021 дата публикации

Bearing member

Номер: US20210010537A1
Автор: Hayato Hirayama, Takemichi YAMASHITA, Tsuyoshi Higuchi, Yutaka Mabuchi
Принадлежит: Nissan Motor Co Ltd

A bearing member (B1) having a coating layer (1) on an internal circumferential surface of a shaft hole (H) configured to mount a shaft body (P1), the coating layer (1) having a metal layer (2) whose surface is formed unevenly, and a resin layer (3) formed on the metal layer (2), the metal layer (2) having a part thereof exposed (2A) on a surface of the resin layer (3), to inhibit the increase in temperature caused by sliding contact with the shaft body (P1), and accomplishing improvement in seizure resistance.

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Номер записи: 28
19-01-2017 дата публикации

Plain Bearing Shell and Piston For A Radial Piston Engine

Номер: US20170016475A1
Автор: Bahm Hermann, Cesar Nelly, Haecker Stefan, Peter Heger, Stadler Thorsten
Принадлежит: KS Gleitlager GmbH

The invention relates to a plain bearing shell (), having a substantially semicylindrical geometry, for use in a piston () of a radial piston engine for the purposes of mounting a roller or shaft, having an axial direction (), a radial direction () and a circumferential direction () of the plain bearing shell, having two face sides () which face away from one another in the axial direction (), having a radially outer side () and a radially inner side () which faces toward the roller or shaft and which receives said roller or shaft such that it can slide in the circumferential direction (); it is proposed according to the invention that, on at least one face side (), there is provided a projection () which protrudes in the axial direction () of the plain bearing shell and which serves to form a means for preventing rotation in the circumferential direction (8). 1250468101241416810121848. A plain bearing shell () with a substantially semicylindrical geometry for use in a piston () of a radial piston engine for the purposes of mounting a roller or shaft , having an axial direction () , a radial direction () , and a circumferential direction () of the plain bearing shell , comprising two face sides ( , ) that face away from one another in the axial direction () , a radially outer side () and a radially inner side () which faces the roller or shaft and receives said roller or shaft such that it can slide in the circumferential direction () , characterized in that on at least one face side ( , ) , a projection () that protrudes in the axial direction () of the plain bearing shell is provided to form an anti-rotation element in the circumferential direction ().21012202218. The plain bearing shell according to claim 1 , characterized in that the two face sides ( claim 1 , ) are formed by end surfaces ( claim 1 , ) of the plain bearing shell which are parallel to one another and from which the projection () protrudes axially.318. The plain bearing shell according to claim 1 ...

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Номер записи: 29
21-01-2016 дата публикации

CRANKSHAFT OR CONNECTING-ROD BEARING ASSEMBLY OF AN INTERNAL COMBUSTION ENGINE

Номер: US20160017919A1
Автор: Haas Roland, Koehler Yvonne, Olschewski Armin, Wendt Volker
Принадлежит: AKTIEBOLAGET SKF

A crankshaft or connecting-rod bearing assembly of an internal combustion engine includes a bearing journal configured to function as a bearing inner ring, and a bearing outer ring surrounds the bearing journal. At least one row of rolling elements is disposed between the bearing journal and the bearing outer ring, the rolling elements are held by a cage, and the cage includes at least two cage segments, each of which extends around a circumferential section of the bearing journal. Furthermore, the at least two cage segments are connected to each other in a materially-bonded manner at at least one joint lying in the circumferential direction.

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Номер записи: 30
28-01-2016 дата публикации

Support for reciprocating pump

Номер: US20160025089A1
Автор: Chandu KUMAR, Donald Keith Plemons, Edward C. Kotapish, Jacob A. Bayyouk, John M. McCrady, Kourosh MOMENKHANI
Принадлежит: Spm Flow Control Inc

A skid for supporting a reciprocating pump assembly, the reciprocating pump assembly including a power end frame assembly having a pair of end plates and a plurality of middle plates disposed between the end plates. The end plates each have at least a pair of feet and the middle plates each having at least one foot. The skid includes a base and a plurality of pads extending from the base. At least a portion of the plurality of pads correspond to the end plate feet and at least another portion of the plurality of pads correspond to the at least one foot of each middle plate.

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Номер записи: 31
24-01-2019 дата публикации

METHOD FOR PRODUCING A UNIT CONSISTING OF ECCENTRIC ROD AND PISTON OF A CONNECTING ROD OF AN INTERNAL COMBUSTION ENGINE

Номер: US20190024579A1
Автор: Paul Michael
Принадлежит:

A method is provided for producing an assembly of an eccentric rod () and a piston () of a connecting rod of an internal combustion engine having an adjustable compression ratio. The method includes providing an eccentric rod () having a first end () for attachment to an eccentric lever of an eccentric adjusting device of the connecting rod and a second end () for attachment to a piston () that can be guided in a hydraulic chamber of the connecting rod. The method then includes arranging the second end () of the eccentric rod () in the piston (); introducing an injection-molding tool () into the piston (); and injection-molding a circumferentially closed retaining ring () between the piston (), the second end () of the eccentric rod () and the injection-molding tool (). 1. A method for producing an assembly that includes an eccentric rod and a piston of a connecting rod of an internal combustion engine that has an adjustable compression ratio , the method comprising:providing the eccentric rod having a first end for attachment to an eccentric lever of an eccentric adjusting device of the connecting rod and a second end for attachment to a piston that is configured to be guided in a hydraulic chamber of the connecting rod;providing the piston which, in the mounted state of the connecting rod, is guided in the hydraulic chamber of the connecting rod;arranging the second end of the eccentric rod in the piston;introducing an injection-molding tool into the piston;injection-molding a circumferentially closed retaining ring between the piston, the second end of the eccentric rod and the injection-molding tool; andremoving the injection-molding tool.2. The method of claim 1 , wherein the second end of the eccentric rod is a ball head and the piston has a ball shell segment claim 1 , the step of arranging the second end of the eccentric rod in the piston comprises inserting the ball head at the second end of the eccentric rod partially into the ball shell segment in the ...

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Номер записи: 32
23-01-2020 дата публикации

CONNECTING ROD AND A METHOD OF MANUFACTURING THE CONNECTING ROD

Номер: US20200025238A1
Автор: ANDRUSKIEWICZ, Coppola Anthony M., IV Peter P., Kia Hamid G., Najt Paul M.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A connecting rod includes a shank formed of a composite. The connecting rod also includes a first end portion coupled to the shank and a second end portion coupled to the shank. The first end portion has an annular shaped portion, and the second end portion has an annular shaped portion. The shank defines a channel coupled to the first and second end portions. 1. A connecting rod comprising:a shank formed of a composite;a first end portion coupled to the shank, wherein the first end portion has an annular shaped portion;a second end portion coupled to the shank, wherein the second end portion has an annular shaped portion; andwherein the shank defines a channel coupled to the first and second end portions.2. The connecting rod as set forth in further including a component disposed in the shank to form the channel.3. The connecting rod as set forth in wherein the component is further defined as a sacrificial component claim 2 , wherein the sacrificial component is ignited to cause deflagration of the sacrificial component claim 2 , thereby forming the channel in the shank.4. The connecting rod as set forth in wherein the component is further defined as a sacrificial component claim 2 , wherein the sacrificial component is melted to remove the sacrificial component from the shank claim 2 , thereby forming the channel in the shank.5. The connecting rod as set forth in wherein the component is further defined as a tube.6. The connecting rod as set forth in wherein:the first end portion includes a first inner surface that defines a boundary of a first cavity;the first end portion includes a first wall that defines a boundary of a first passageway, and the first passageway connects with the first cavity and the channel;the second end portion includes a second inner surface that defines a boundary of a second cavity;the second end portion includes a second wall that defines a boundary of a second passageway, and the second passageway connects with the second cavity and the ...

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Номер записи: 33
02-02-2017 дата публикации

CONNECTING ROD OF ENGINE

Номер: US20170030400A1
Автор: Nishihara Takashi, TSUKAMOTO Yuki
Принадлежит:

A engine connecting includes a large diameter end portion mounted to a crank of a crankshaft of an engine to be rotatable, a small diameter end portion into which a piston pin is inserted and which supports the piston pin to be rotatable, and a connecting portion connecting the large diameter end portion and the small diameter end portion at a longitudinal end portions thereof. The connecting portion has a plate-shape widened in a wide width direction thereof to be perpendicular to a center axis of the crank shaft, the connecting portion is provided with four vertical reinforcing portions projecting in four directions so as to extend in a longitudinal direction of the connecting rod from the small diameter end portion to the large diameter end portion. 1. A connecting rod of an engine comprising:a large diameter end portion mounted to a crank of a crankshaft of an engine to be rotatable;a small diameter end portion into which a piston pin is inserted and which supports the piston pin to be rotatable; anda connecting portion connecting the large diameter end portion and the small diameter end portion at a longitudinal end portions thereof,wherein the connecting portion has a plate-shape widened in a width direction thereof to be perpendicular to a center axis of the crank shaft, the connecting portion is provided with four vertical reinforcing portions projecting in four directions so as to extend in a longitudinal direction of the connecting rod from the small diameter end portion to the large diameter end portion, and a plurality of recessed portions are formed so that side surface portions of the connecting portion are recessed with respect to four side lines of a rectangular shape formed by a virtual line connecting four end points the vertical reinforcing portions connecting the large and small diameter end portions in a sectional view taken by an orthogonal plane of the center axis of the connecting portion.2. The connecting rod according to claim 1 , wherein ...

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Номер записи: 34
02-02-2017 дата публикации

SLIDING MEMBER AND SLIDING BEARING

Номер: US20170030409A1
Автор: Wada Hitoshi
Принадлежит: TAIHO KOGYO CO., LTD.

A sliding member includes a base layer that includes soft particles made of a soft material deposited in a matrix and a soft layer made of a soft material. The soft material is softer than the matrix, the soft layer is formed on a surface of the base layer, and a maximum epitaxial index of the soft particles as the boundary portion of the sliding member is equal to or less than 10% and greater than 0%. The epitaxial index of a soft particle at the boundary portion is a ratio of: a portion of a length between a first endpoint and a second endpoint of a soft particle where an edge of the boundary portion is not visible within an area less than 1 μm from the length between the first endpoint and the second endpoint, to the length between the first endpoint and the second endpoint. 1. A sliding member , comprising:a base layer comprising soft particles made of a soft material deposited in a matrix; anda soft layer made of a soft material,wherein the soft material is softer than the matrix,wherein the soft layer is formed on a surface of the base layer,wherein a maximum epitaxial index of the sliding member is equal to or less than 10% and greater than 0%,wherein the maximum epitaxial index of the sliding member is a maximum value of all of an epitaxial index of the soft particles at the boundary portion, and 'a portion of a length between a first endpoint of a soft particle and a second endpoint of the soft particle where an edge of the boundary portion is not visible within an area not farther than 1 μm from the length between the first endpoint and the second endpoint, to', 'wherein the epitaxial index of the soft particles at the boundary portion is a ratio ofthe length between the first endpoint and the second endpoint.2. The sliding member according to claim 1 , wherein a boundary portion is formed between crystal grains of the soft particles and crystal grains of the soft layer.3. The sliding member according to claim 2 , wherein a structure of the crystal grains ...

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Номер записи: 35
04-02-2016 дата публикации

HALF THRUST BEARING AND BEARING DEVICE USING THE SAME

Номер: US20160032961A1
Автор: OZAWA Yoshihiro, Tanaka Shiho
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, including thrust reliefs formed adjacent to both circumferential end portions of a slide surface which receives the axial force, so that a wall thickness of the half thrust bearing becomes thinner toward the circumferential end portions, wherein 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. The present invention also provides a bearing device including the above half thrust bearing, a crankshaft, a pair of half bearings supporting a journal portion of the crankshaft, and a bearing housing having a holding hole for holding the pair of half bearings. 1. A half thrust bearing in a semicircular ring shape for receiving an axial force of a crankshaft of an internal combustion engine , comprising:thrust reliefs formed adjacent to both circumferential end portions of a slide surface which receives the axial force, so that a wall thickness of the half thrust bearing becomes thinner toward the circumferential end portions, whereinat 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 becomes larger toward the outer end portion from the inner end portion in the radial direction of the half thrust bearing.3. The half thrust bearing according to claim 1 , wherein at least the thrust relief on the rear side in the ...

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Номер записи: 36
01-02-2018 дата публикации

CONNECTING ROD LUBRICATION APPARATUS

Номер: US20180031029A1
Автор: Zhu Guangrui G.
Принадлежит:

An apparatus includes a connecting rod having a surface that defines an opening to receive a pin for coupling the connecting rod to a piston at a first end of the connecting rod. The surface includes a groove arrangement to collect, retain and distribute lubrication fluid in the space between the pin and the inner surface. The surface can be formed by the connecting rod or a bushing in an opening of the connecting rod. 127-. (canceled)28. An internal combustion engine , comprising:a connecting rod extending along a central longitudinal axis between a first end and an opposite second end;a pin extending from the first end of the connecting rod to a piston, the pin defining a rotation axis transverse to the central longitudinal axis, wherein the pin includes a first surface portion facing in a first direction along the central longitudinal axis toward the first end of the connecting rod and an opposite second surface portion facing in a second direction along the central longitudinal axis toward the second end of the connecting rod;a crankshaft coupled to the second end of the connecting rod; a first transverse groove portion extending along the rotation axis along the second surface portion of the pin on a first side of the central longitudinal axis when viewed in the direction of the rotation axis;', 'a second transverse groove portion extending along the rotation axis along the second surface portion of the pin on a second side of the central longitudinal axis opposite the first side; and', 'a circumferential groove portion extending along the first surface portion of the pin and that interconnects and is in fluid communication with the first transverse groove portion and the second transverse groove portion, the bushing further including a hole opening through the inner surface for delivering lubrication fluid to the inner surface, wherein the hole is offset from the central longitudinal axis and does not intersect the groove arrangement., 'a bushing housed in the ...

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Номер записи: 37
01-02-2018 дата публикации

MANUFACTURING METHOD FOR SLIDING BEARING, AND SLIDING BEARING

Номер: US20180031030A1
Автор: Seki Daisuke, Takagi Yuji
Принадлежит:

A manufacturing method for a sliding bearing including halt members, obtained by splitting a cylinder in half in a direction parallel with an axial direction, arranged in an upper and lower direction, may include a first step including forming a narrow groove extending in the circumference direction on an axial direction end of one of the half members on a lower side, on a downstream side in a rotation direction; a second step including performing shot blasting on a surface of the narrow groove; and a third step including forming coating layers on a surface of the half member. The coating layers may be formed only on an upstream-side end and a downstream-side end as parts of the narrow groove. 1. A manufacturing method for a sliding bearing including half members , obtained by splitting a cylinder in half in a direction parallel with an axial direction , arranged in an upper and lower direction , the method comprising:a first step comprising forming a narrow groove extending in the circumference direction on an axial direction end of one of the half members on a lower side, on a downstream side in a rotation direction;a second step comprising performing shot blasting on a surface of the narrow groove; anda third step comprising forming coating layers on a surface of the half member,wherein in the third step, the coating layers are formed only on an upstream-side end and a downstream-side end as parts of the narrow groove.2. The manufacturing method for a sliding bearing according to claim 1 , wherein the coating layers formed in the third step each include at least one of molybdenum disulfide claim 1 , graphite claim 1 , carbon claim 1 , polytetrafluoroethylene claim 1 , boron nitride claim 1 , tungsten disulfide claim 1 , and fluorine-based resin.3. The manufacturing method for a sliding bearing according to claim 1 ,wherein a circumference edge portion is formed on a surface on an outer side of the narrow groove in the axial direction, andwherein the circumference ...

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Номер записи: 38
01-02-2018 дата публикации

SLIDE BEARING

Номер: US20180031031A1
Автор: Seki Daisuke, Takagi Yuji
Принадлежит:

A sliding bearing may include half members, obtained by splitting a cylinder in half, arranged in an upper and lower direction. A narrow groove extending in the circumference direction may be formed on one of the half members, on a downstream side in a rotation direction. A circumference edge portion may be formed on an outer side of the narrow groove, and may be formed to be lower than a contact surface of the sliding bearing to be in contact with a shaft. Projecting portions and recessed portions may be alternately arranged on a bottom surface of the narrow groove in parallel with a longitudinal direction of the narrow groove. A coating layer may be formed on an inner circumference surface of the half member, the coating layer including at least a region from an inner circumference end to an intermediate portion inner-side surface of the narrow groove. 1. A sliding bearing comprising:half members, obtained by splitting a cylinder in half in a direction parallel with an axial direction, arranged in an upper and lower direction, whereina narrow groove extending in the circumference direction is formed on an axial direction end of one of the half members on a lower side, on a downstream side in a rotation direction,a circumference edge portion is formed on an outer side of the narrow groove in an axial direction, and is formed to be lower than a contact surface of the sliding bearing to be in contact with a shaft, andprojecting portions and recessed portions are alternately arranged on a bottom surface of the narrow groove in a cross-sectional view in parallel with a longitudinal direction of the narrow groove, anda coating layer is formed on an inner circumference surface of the half member, the coating layer being formed to at least include a region from an inner circumference end to an intermediate portion of an axial direction inner-side surface of the narrow groove.2. The sliding bearing according to claim 1 , wherein the recessed portions are each formed to ...

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Номер записи: 39
01-02-2018 дата публикации

SLIDING BEARING

Номер: US20180031032A1
Автор: Seki Daisuke, Takagi Yuji
Принадлежит:

Provided is a sliding bearing capable of achieving a friction reduction effort and limiting A total outflow oil amount. This sliding bearing has vertically disposed members which are formed by halving a cylinder in the direction parallel to the axial direction of the cylinder wherein narrow grooves are provided on an axial end of the lower halved member in a circumferential direction on the downstream side in the rotation direction; peripheral sections are formed outward from the narrow grooves in the axial direction so as to be lower than a contact surface between the sliding bearing and a crankshaft, and when viewed in a cross-section perpendicular to the longitudinal direction of the peripheral section, a chamfered section is formed at an outer edge section in the axial direction of the peripheral section. 1. A sliding bearing comprising vertically disposed halved members which are formed by halving a cylinder in a direction parallel to an axial direction of the cylinder , wherein narrow grooves are provided on an axial end of the lower halved member in a circumferential direction on a downstream side in a rotation direction , peripheral sections are formed outward from the narrow grooves in the axial direction so as to be lower than a contact surface between the sliding bearing and a shaft ,when viewed in a cross-section perpendicular to the longitudinal direction of the peripheral section, a chamfered section is formed at an outer edge section in the axial direction of the peripheral section,the chamfered section is formed to have an inclination angle that is larger than 0°.2. The sliding bearing according to claim 1 , wherein the chamfered section is formed to have an inclination angle that is not larger than 60°. This is the U.S. national stage of application No. PCT/JP2016/055948, filed on Feb. 26, 2016. Priority under 35 U.S.C. § 119(a) and 35 U.S.C. § 365(b) is claimed from Japanese Application No. 2015-039113, filed on Feb. 27, 2015, the disclosures of ...

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Номер записи: 40
31-01-2019 дата публикации

Cylinder assembly of an orc engine

Номер: US20190032487A1
Автор: HORBACH Joscha, SCHNUR Rainer
Принадлежит:

The invention relates to an assembly of an ORC engine with a crosshead for the articulated connection of a piston rod of a piston, which is guided in a working cylinder, to a connecting rod of the ORC engine, wherein the crosshead is movable in a guide in the longitudinal direction of the piston rod. The crosshead can be detached from the connecting rod in the direction of the working cylinder without complete or partial dismounting of the guide. By means of the guide, free space can be left for the dismounting of the crosshead with axial displacement of a connecting-rod pin, and/or the crosshead can be broken down into parts for dismounting purposes. 1. A cylinder assembly of an ORC engine having a crosshead for the articulated connection of a piston rod of a piston , the crosshead is guided in a working cylinder , to a connecting rod of the ORC engine , the crosshead being movable in a guide in the longitudinal direction of the piston rod , whereinthe crosshead can be detached from the connecting rod in the direction towards the working cylinder without complete removal or partial removal of the guide.2. The assembly according to claim 1 , whereinsufficient free space is left by the guide for the removal of the crosshead with axial displacement of a connecting rod pin or the crosshead can be broken down into parts for the purposes of removal.3. The assembly according to claim 1 , whereinwhen the crosshead is detached from the connecting rod, it is possible for a structural unit formed by the crosshead, the piston rod, and the piston to be decoupled in its entirety from the connecting rod.4. The assembly according to claim 2 , whereinthe crosshead comprises fork legs which have through-openings for the connecting rod pin and between which the free end of the connecting rod is disposed.5. The assembly according to claim 4 , whereinthe fork legs protrude from a section of the crosshead which is conical and configured to be connected to the piston rod.6. The assembly ...

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Номер записи: 41
31-01-2019 дата публикации

HALF BEARING AND SLIDING BEARING

Номер: US20190032701A1
Автор: AMANO Seiji, SAKURAI Shinichi, YAMAMOTO Akifumi
Принадлежит:

Provided is a semi-cylindrical shaped half bearing. The half bearing has an inner surface forming a sliding surface and including a plurality of recesses. Each recess has a smooth recess surface and a peripheral edge. The recess surface forms a convex curve toward the outer diameter side of the half bearing in cross-sectional view in a direction parallel to a circumferential direction of the half bearing. The recess includes a groove forming zone adjacent to the peripheral edge of the recess. The groove forming zone includes a plurality of circumferential grooves. The circumferential grooves extend from the peripheral edge of the recess along the circumferential direction of the half bearing. The present invention also provides a cylindrical sliding bearing including the above half bearing. 1. A half bearing for constituting a sliding bearing for supporting a crankshaft of an internal combustion engine , the half bearing having a semi-cylindrical shape having an inner surface , the inner surface forming a sliding surface ,wherein the sliding surface of the half bearing comprises a plurality of recesses, each recess having a smooth recess surface and a peripheral edge, the recess surface recessing from the sliding surface toward an outer diameter side of the half bearing;wherein the recess surface forms a convex curve toward the outer diameter side of the half bearing in cross-sectional view in a direction parallel to a circumferential direction of the half bearing;wherein the recess comprises a groove forming zone adjacent to the peripheral edge of the recess, the groove forming zone comprising a plurality of circumferential grooves, the circumferential grooves recessing from the recess surface toward the outer diameter side of the half bearing; andwherein the circumferential grooves extend from the peripheral edge of the recess along the circumferential direction of the half bearing.21. The half bearing according to claim 1 , wherein a depth D of the recess is 2 to ...

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Номер записи: 42
31-01-2019 дата публикации

SECONDARY CLAMPING DEVICE FOR WHEEL

Номер: US20190032705A1
Автор: Chang Haiping, He Zegong, Liu Weidong, Tian Yeling, Wang Yingfeng, YAO Dan, Zhang Shengchao
Принадлежит: CITIC Dicastal CO, LTD

Disclosed is a secondary clamping device for a wheel. Two bearings and a spacing ring are closed in a base by a bearing end cover, a shaft sleeve is mounted on the bearings, a linear bearing and a gland are fixed on the shaft sleeve, a positioning pin is fixed at the top of the floating shaft, two ends of the spring A are respectively connected with the positioning pin and the linear bearing, and the positioning pin can move up and down under the action of the spring A. A pull rod is fixed on the gland, the outer wall of the floating column is connected with the inner hole of the shaft sleeve, two ends of the spring B are respectively connected with the gland and the floating column. 1. A secondary clamping device for a wheel, comprising a shaft sleeve, a linear bearing, a positioning pin, a spring A, a floating shaft, a nut, a pressure plate, a pull rod, a floating column, a spring B, a bearing end cover, bearings, a spacing ring, a gland and a base, wherein the two bearings and the spacing ring are closed in the base by the bearing end cover, and the two bearings are connected by the spacing ring; the shaft sleeve is mounted on the bearings, the linear bearing and the gland are fixed on the shaft sleeve, the floating shaft passes through the linear bearing and the spring A in sequence, the positioning pin is fixed at the top of the floating shaft, the upper part of the positioning pin is of a positive cone structure, two ends of the spring A are respectively connected with the positioning pin and the linear bearing, and the positioning pin is configured to move up and down under the action of the spring A; the pull rod is fixed on the gland, the pull rod passes through the spring B and an inner hole of the floating column, the outer wall of the floating column is connected with the inner hole of the shaft sleeve, the upper end face of the floating column is of a positive conical surface structure, two ends of the spring B are respectively connected with the gland ...

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Номер записи: 43
30-01-2020 дата публикации

Reciprocating piston engine

Номер: US20200032738A1
Автор: Takamasa Adachi
Принадлежит: Mazda Motor Corp

A projecting-shape portion projecting toward a first sliding surface in a section along a sliding direction of a second sliding surface is provided on the second sliding surface which slides relative to the first sliding surface, and an apical portion, which is a most projecting part, and a bottom edge portion, which is at a position that is most spaced apart from the first sliding surface, are provided on the projecting-shape portion, and when a gap between the first sliding surface and the second sliding surface at the apical portion is assumed to be a minimum gap h1 and a gap at the bottom edge portion is assumed to be a maximum gap h2, h1 is set to be within a range of 0.5 μm to 40 μm and h2/h1 is set to be within a range of 1.5 to 5.0.

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Номер записи: 44
30-01-2020 дата публикации

ROLLER BEARING ASSEMBLY FOR USE IN A FRACKING PUMP CRANK SHAFT

Номер: US20200032838A1
Автор: Prescavage James, Roehr George
Принадлежит: ROLLER BEARING COMPANY OF AMERICA, INC.

A roller bearing assembly for use in a fracking pump crank shaft includes an inner ring being positioned an outer ring and a plurality of rolling elements disposed therebetween. Each of the rolling elements have a bore extending therein. The roller bearing assembly includes a cage having an annular disc with pins extending axially inward therefrom and into the bore. The pins are positioned on the annular disc so that the rolling elements are spaced apart from one another with a gap extending continuously therebetween. The gap is of a predetermined magnitude to maximize the number of rolling elements that fit between the inner ring and the outer ring to maximize load carrying capacity of the roller bearing assembly. 1. A roller bearing assembly for use in a fracking pump crank shaft , the roller bearing assembly comprising:an outer ring having an inner raceway;an inner ring having an outer raceway, the inner ring being positioned at least partially in the outer ring;a plurality of rolling elements disposed between and in rolling engagement with inner raceway and the outer raceway, a first of the rolling elements having a first bore extending axially at least partially therethrough and a second of the rolling elements having a second bore extending axially therethrough; anda cage having a first annular disc positioned axially outward from the plurality of rolling elements, a first pin extending axially inward from the first annular disc and a second pin extending axially inward from the first annular disc, the first pin extending into the first bore and the second pin extending into the second bore;wherein the first pin and the second pin are positioned on the first annular disc so that the first of the plurality of rolling elements and the second of the plurality of rolling elements are spaced apart from one another with a gap extending continuously therebetween, the gap being of a predetermined magnitude to maximize the number of rolling elements that fit between ...

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Номер записи: 45
08-02-2018 дата публикации

Sliding bearing

Номер: US20180038416A1
Автор: Daisuke Seki, Yuji Takagi
Принадлежит: Taiho Kogyo Co Ltd

A sliding bearing may include vertically-arranged half members obtained by halving a cylinder, wherein a narrow groove is provided circumferentially to both axial direction ends of a lower half member at a downstream side of a rotational direction. A peripheral section may be formed on a surface on an outer side of the narrow groove. The peripheral section may be formed to have a height from an outer peripheral surface of the half member that is shorter than a height of a contact surface from an outer peripheral surface of the half member. An inclined part that is inclined toward an inner peripheral side is provided to a downstream side end, of the narrow groove, and a coating layer is provided to an inner peripheral surface of the half member only part of an inner peripheral surface of the narrow groove including an inner peripheral surface of the inclined part.

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Номер записи: 46
24-02-2022 дата публикации

CONNECTING ROD AND PROCESS FOR ASSEMBLING

Номер: US20220056945A1
Автор: WETTERMARK Fredrik
Принадлежит:

The invention relates to a method for assembly, a method for disassembly and a connecting rod () for a combustion engine, the connecting rod () comprising a first and a second connecting rod part (), wherein the first connecting rod part () is configured to be connected to the second connecting rod part () when the connecting rod () is assembled around a rod-bearing journal of a crankshaft, wherein a connection between the first and the second connecting rod parts () is an adhesive connection. 1. A connecting rod for a combustion engine , the connecting rod comprising a first and a second connecting rod part , wherein the first connecting rod part is configured to be connected to the second connecting rod part when the connecting rod is assembled around a rod-bearing journal of a crankshaft , wherein a connection between the first and the second connecting rod parts is an adhesive connection.2. (canceled)3. The connecting rod according to claim 1 , wherein the first and the second connecting rod parts each comprise a first and a second assembly surfaces that are configured for mutual engagement.4. (canceled)5. The connecting rod according to claim 3 , wherein the first assembly surfaces comprises a first inclined connection area and the second assembly surfaces comprise a second inclined connecting area complimenting the first connection area claim 3 , wherein the surfaces are inclined in relation to the cross sectional plane at the connection to provide an enhanced shear forces resistance in the adhesive connection.6. The connecting rod according to claim 3 , wherein the first assembly surfaces comprises a number of teeth and/or serrations and the second assembly surfaces comprises a number of teeth and/or serrations complimenting the number of teeth or serrations of the first assembly surface.7. The connecting rod according to claim 1 , wherein one of the first and the second connecting rod part comprises an indicator part that indicates the correct assembly of ...

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Номер записи: 47
07-02-2019 дата публикации

CONNECTING-ROD WITH ONE OR MORE RECESS IN THE STEM TO REDUCE MASS, OPTIMIZE THE BALANCING BETWEEN ROTATING AND RECIPROCATING MASSES, AND OPTIMIZE THE CONNECTING-ROD BEARINGS MINIMUM OIL FILM THICKNESS

Номер: US20190040903A1
Автор: GERMANO Francesco, NUMIDI Fabio, RESCINA Vito
Принадлежит:

A connecting rod for connecting between a crankshaft and a piston, includes a small end with a cylindrical hole adapted to for receiving a piston pin, a big end having a crank pin bore adapted for receiving a crank pin of a crankshaft and a stem portion extends between the small end and big end. The stem portion can have an I-beam cross-section with a pair of legs and a web extending between the pair of legs. The web includes oppositely facing surfaces defining a thickness that is less than a thickness of the pair of legs. The web includes at least one grooved/recessed portion that is recessed relative to the oppositely facing surfaces of the web. 1. A connecting rod for connecting between a crankshaft and a piston , comprising:a connecting rod small end having a cylindrical hole adapted to for receiving a piston pin;a connecting rod big end adapted to for receiving a crank pin of a crankshaft;a stem portion extending between the connecting rod small end and the connecting rod big end and having an I-beam cross-section with a pair of legs and a web extending between the pair of legs, the web having oppositely facing surfaces defining a thickness in a longitudinal direction of an axis of the crankshaft bearing boss that is less than a thickness of the pair of legs in the longitudinal direction of the axis of the crankshaft bearing boss, the web having at least one recessed portion that is recessed relative to at least one of the oppositely facing surfaces of the web.2. The connecting rod according to claim 1 , wherein the at least one recessed portion is circular in shape.3. The connecting rod according to claim 2 , wherein the at least one recessed portion is disposed between the connecting rod small end and the connecting rod big end.4. The connecting rod according to claim 3 , wherein the at least one recessed portion includes at least one recessed portion disposed on both of the oppositely facing surfaces of the web.5. The connecting rod according to claim 1 , ...

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Номер записи: 48
06-02-2020 дата публикации

METHODS AND SYSTEMS FOR A VARIABLE COMPRESSION ENGINE

Номер: US20200040815A1
Автор: Sampson Alan
Принадлежит:

Methods and systems are provided for adjusting a compression ratio. In one example, a system may include rotating an eccentric ring of a crankshaft by flowing hydraulic fluid to first and second chambers to actuate the eccentric ring. 1. A system comprising:a crankshaft eccentric ring comprising a first protrusion and a second protrusion rotated by hydraulic fluid in one or more of a first chamber and a second chamber.2. The system of claim 1 , wherein the first hydraulic chamber is a low compression chamber and the second hydraulic chamber is a high compression chamber.3. The system of claim 1 , wherein the eccentric ring is sandwiched between a first counterweight and a second counterweight claim 1 , and where the first chamber is arranged in the first counterweight and the second chamber is arranged in the second counterweight.4. The system of claim 1 , wherein the first protrusion contacts only hydraulic fluid in the first chamber and where the second protrusion contacts only hydraulic fluid in the second chamber.5. The system of claim 1 , wherein hydraulic fluid flow to and from the first and second chambers is proportional claim 1 , wherein an amount of hydraulic fluid flowing into the first chamber is equal to an amount of hydraulic fluid flowing out of the second chamber or vice-versa.6. The system of claim 1 , wherein the first and second chambers are identical in size and shape claim 1 , and where the first chamber comprises a first chamber opening adjacent the first extreme end and where the second chamber comprises a second chamber opening adjacent the second extreme end.7. The system of claim 6 , wherein the first protrusion and the second protrusion are rectangular prism shaped claim 6 , and where an edge of the first protrusion nearest the first chamber opening is beveled claim 6 , and where an edge of the second protrusion nearest the second chamber opening is beveled.8. The system of claim 6 , wherein there are no other inlets or additional outlets ...

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Номер записи: 49
18-02-2021 дата публикации

BEARING SUPPORT STRUCTURE

Номер: US20210048063A1
Автор: KIMURA Kensuke, Yamaguchi Kunihiro
Принадлежит: JTEKT CORPORATION

A bearing support structure in which a split rolling bearing split into two in a peripheral direction is mounted on the outer periphery of a rotatable shaft member, the shaft member includes a cylindrical shaft portion, and a first side surface and a second side surface that face each other in an axial direction with the shaft portion sandwiched therebetween and that extend in a substantially radial direction, and at least one of the first side surface and the second side surface is inclined with respect to a plane orthogonal to a central axis of the shaft member. 1. A bearing support structure in which a split rolling bearing split in two portions in a peripheral direction is mounted on an outer periphery of a rotatable shaft member , a cylindrical shaft portion, and', 'a first side surface and a second side surface facing each other in an axial direction with the shaft portion sandwiched therebetween and extending in a substantially radial direction,, 'wherein the shaft member includeswherein at least one of the first side surface and the second side surface is inclined with respect to a plane orthogonal to a central axis of the shaft member, an inner ring having a substantially cylindrical shape, an inner raceway surface formed on an outer periphery, and a first end surface and a second end surface that extend substantially in the radial direction at both axial ends, and split into two in the peripheral direction,', 'an outer ring disposed radially outward of the inner ring, having an outer raceway surface formed on the inner periphery, and split into two in a peripheral direction, and', 'a plurality of rolling elements disposed between the inner raceway surface and the outer raceway surface,, 'wherein the split rolling bearing includeswherein the inner ring is incorporated in an outer periphery of the shaft portion such that the first end surface and the first side surface face each other in the axial direction and the second end surface and the second side ...

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Номер записи: 50
15-02-2018 дата публикации

SLIDING BEARING MANUFACTURING METHOD AND SLIDING BEARING

Номер: US20180045241A1
Автор: Seki Daisuke, Takagi Yuji
Принадлежит:

It is possible to provide a sliding bearing that can obtain a friction reduction effect, and can suppress the total amount of outflow oil. A manufacturing method of the present invention is a method of manufacturing a sliding bearing () in which half members () are arranged in a vertical arrangement, the half members () being obtained by dividing a cylinder into two parts along a line parallel with the axial direction and having a metal layer () and a lining layer () provided on the inner circumferential surface of the metal layer (), the manufacturing method comprising: a groove configuration step (S) (first step) of providing a groove () in an axial end portion of the half member () on the lower side, the groove () extending in the circumferential direction on a downstream side in a rotation direction, wherein in the groove configuration step (S), the depth (d) of the groove () is set smaller than the result of subtracting the sum of the tolerance (a) of the thickness of the lining layer () and the tolerance (a) of the depth of the groove () from the thickness (h) of the lining layer (). 1. (canceled)2. (canceled)3. (canceled)4. A sliding bearing comprising:a metal layer having a half-cylindrical shape;a lining layer formed on an inner surface of the metal layer, the lining layer having a sliding surface that slides on a shaft;a groove formed on the lining layer, the groove extending towards a circumferential direction of the shaft, the groove being formed at a part of a downstream side in a rotation direction, whereina depth of the groove is smaller than a thickness of the lining layer.5. A sliding bearing according to claim 4 , whereinthe lining layer has only two grooves.6. A sliding bearing according to claim 5 , whereinan outside wall in an axial direction, of the groove is lower than an inside wall of the groove.7. A method for manufacturing a half bearing having a metal layer and a lining layer formed on an inner surface of the metal layer claim 5 , the ...

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Номер записи: 51
08-05-2014 дата публикации

Bearing arrangement

Номер: US20140126847A1
Автор: Guy Towlson, Olivier Beaurepaire, Omar Mian
Принадлежит: Mahle Composants Moteur France Sas, Mahle Engine Systems UK Ltd, MAHLE International GmbH

A bearing arrangement comprising a bearing shell, and a bearing shell receiving element, wherein the bearing shell is cylindrical or part-cylindrical and has a circumferential oil supply slot, and the bearing shell receiving element has an oil supply channel located in correspondence with the oil supply slot.

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Номер записи: 52
14-02-2019 дата публикации

ROTATING PART SUPPORTING STRUCTURE FOR ENGINE

Номер: US20190048823A1
Автор: IMAMURA Satoshi, KIMURA Shohei, OKAGAWA Masaaki
Принадлежит: MAZDA MOTOR CORPORATION

Disclosed herein is a support structure for a rotary part of an engine (). The support structure includes crank journal bearing metals () and crank pin bearing metals (). Each crank journal bearing metal () includes chamfers () and crowned portions (). On the other hand, each crank pin bearing metal () includes chamfers () and no crowned portion or crowned portions () on its inner peripheral surface. The crowned portions () are inclined at a smaller angle than the crowned portions (). 1. A support structure for a rotary part of an engine , the structure comprising:block-side bearing parts in a cylinder block;bearing caps, each associated with one of the block-side bearing parts; crank journals, each sandwiched between one of the block-side bearing parts and associated one of the bearing caps, and rotatably supported by the block-side bearing part and the bearing cap,', 'crank pins, each rotatably connected to a large end part of a connecting rod, which includes a connecting rod cap, and a rod-side bearing part provided on a side of a connecting rod body opposite to a piston, the connecting rod body being connected to the piston, and', 'crank arms, each connecting one of the crank pins to associated ones of the crank journals;, 'a crankshaft including'}tubular crank journal bearing metals, each covering a circumference of one of the crank journals, and disposed between the crank journal and associated one of the block-side bearing parts, and between the crank journal and associated one of the bearing caps; andtubular crank pin bearing metals, each covering a circumference of one of the crank pins, and disposed between the crank pin and associated one of the rod-side bearing parts, and between the crank pin and associated one of the connecting rod caps, whereinwhile assembled in the engine, the crank journal and crank pin bearing metals have a circular or oval inner peripheral surface as viewed in a crankshaft direction, chamfers, each located at a corner between one ...

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Номер записи: 53
25-02-2016 дата публикации

INTERNAL COMBUSTION ENGINE

Номер: US20160053715A1
Автор: HOSHIKAWA Hiroaki
Принадлежит: NISSAN MOTOR CO., LTD.

An internal combustion engine () is designed so that the center axis P of a cylinder () is offset relative to a main journal part () of a crankshaft (). A bearing cap () is designed so that the side toward the cylinder center axis from a main bearing part () is secured to a bulkhead () by two fastening bolts () while the side away from the cylinder center axis from the main bearing part is secured to the bulkhead by one fastening bolt () and that the bearing cap securing force on the side toward the cylinder center axis from the main bearing part () is greater than the bearing cap securing force on the side away from the cylinder center axis. 17.-. (canceled)8. An internal combustion engine comprising a bearing cap secured to a cylinder block by fastening bolts and a crankshaft rotatably supported by the bearing cap and the cylinder block , and so designed that a cylinder center axis is offset relative to a rotation center of the crankshaft ,wherein the product of a distance from a center axis of the fastening bolts to the rotation center of the crankshaft and an axial force of the fastening bolts is defined as a bearing cap securing force,the bearing cap of the internal combustion engine is designed so that, when viewed from an axial direction of the crankshaft, a bearing cap securing force on the side toward the cylinder center axis from the rotation center of the crankshaft is larger than a bearing cap securing force on the side away from the cylinder center axis or the side having no cylinder center axis,the bearing cap is secured by two fastening bolts on the side toward the cylinder center axis while being secured by one fastening bolt on the side away from the cylinder center axis,the bearing cap has a cylinder block-side basal surface that serves as a contact surface brought into contact with the cylinder block, and a top end surface opposite to the basal surface,the bearing cap is partially cut out at a cylinder center axis-side end of the top end surface ...

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Номер записи: 54
13-02-2020 дата публикации

Eccentric member and a v-type internal combustion engine

Номер: US20200049192A1
Автор: Lambertus Hendrik De Gooijer
Принадлежит: Gomecsys BV

An eccentric member for a system for varying compression ratio of an internal combustion engine comprises two circumferential bearing portions for bearing respective big ends of connecting rods of a V-type internal combustion engine. The bearing portions are eccentric with respect to an inner surface of the eccentric member and located at a distance from each other in axial direction of the eccentric member. The eccentric member also comprises two external gears between which the bearing portions are located. The eccentric member is made of two half-sleeves which are fixed to each other at least between the bearing portions.

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Номер записи: 55
13-02-2020 дата публикации

MAIN BEARING CAP STUD CONFIGURATION & ASSEMBLY METHOD

Номер: US20200049193A1
Автор: Perr Andrew P.
Принадлежит: Cummins Inc.

The present disclosure provides a stud assembly insertable throughout a base block. The stud assembly includes a retention ring to engage with the base block and provide ease in assembly of the bearing cap stud assembly in an engine configuration without compromising load carrying characteristics of the design. 1. An engine assembly comprising:a base block including a first cavity configured to receive a first crankshaft and a second cavity configured to receive a second crankshaft; a sleeve encircling the stud assembly, the sleeve configured to create a cooling annulus for the stud assembly; and', 'a first ring encircling the stud assembly, the first ring configured to retain the stud assembly onto the base block by engaging with a groove in the base block., 'a stud assembly receivable through the base block, the stud assembly including2. The engine assembly of claim 1 , further including a second ring coupling the sleeve onto the stud assembly.3. The engine assembly of claim 1 , further including a first bearing cap coupled to a first end of the stud assembly and a second bearing cap coupled to a second end of the stud assembly.4. The engine assembly of claim 3 , further including a first nut coupling the first bearing cap to the stud assembly and a second nut coupling the second bearing cap to the stud assembly.5. The engine assembly of claim 4 , wherein the base block receives a first connecting rod and a first piston coupled to the first crankshaft and a second connecting rod and a second piston coupled to the second crankshaft.6. The engine assembly of claim 4 , wherein the base block receives a first connecting rod and a first piston coupled to the first crankshaft and a second connecting rod and a second piston coupled to the second crankshaft.7. The engine assembly of claim 1 , wherein the stud assembly includes a first end and a second end claim 1 , the first end and second end having a hexagonal shape and configured to couple to a first bearing cap and a ...

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Номер записи: 56
26-02-2015 дата публикации

MAIN BEARING FOR CRANKSHAFT OF INTERNAL COMBUSTION ENGINE

Номер: US20150055900A1
Автор: Kawashima Yuki, KOUSHIMA Motohiko
Принадлежит:

A main bearing for a crankshaft of an internal combustion engine has first and second half bearings forming an axial groove on an inner circumferential surface of a butting portion. Each half bearing has a main cylinder portion including a central portion, and crush relief portions each extending toward the central portion from an end surface of the half bearing with a center angle of 3° to 15°. A plurality of crush relief grooves are formed in each crush relief portion in the circumferential direction to communicate with the axial groove. An oil groove is formed in the circumferential direction on an inner circumferential surface of the first half bearing. The second half bearing has a transition region having an inward protruding curved surface a wall thickness of which becomes thinner toward the crush relief portion from the main cylinder portion. 1. A main bearing for rotatably supporting a journal section of a crankshaft of an internal combustion engine , the journal section comprising a cylindrical body part , a lubricating oil path extending to penetrate the cylindrical body part , and two inlet openings of the lubricating oil path that are formed on an outer circumferential surface of the cylindrical body part , whereinthe main bearing comprises first and second half bearings which are combined into a cylindrical shape by butting respective circumferential end surfaces,the first and second half bearings are configured to form an axial groove extending through an entire length of the main bearing in an axial direction on an inner circumferential surface side of each butting portion when the first and second half bearings are combined,each half bearing has a main cylinder portion including a central portion of the half bearing in the circumferential direction, and crush relief portions which are formed throughout an entire length of the half bearing in the axial direction at both end portions of the half bearing in the circumferential direction so that a wall ...

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Номер записи: 57
26-02-2015 дата публикации

MAIN BEARING FOR CRANKSHAFT OF INTERNAL COMBUSTION ENGINE

Номер: US20150055901A1
Автор: Kawashima Yuki, KOUSHIMA Motohiko
Принадлежит:

A main bearing for a crankshaft of an internal combustion engine has first and second half bearings forming an axial groove on an inner circumferential side of a butting portion. Each half bearing has a main cylinder portion including a central portion in a circumferential direction, and crush relief portions each extending toward the central portion from an end surface of the half bearing in the circumferential direction with a center angle of 3° to 15°. A plurality of crush relief grooves are formed in each crush relief portion to extend in the circumferential direction and communicate with the axial groove. The first half bearing has an oil groove extending in the circumferential direction and a transition region having an inward protruding curved surface with a wall thickness becoming thinner toward the crush relief portion from the main cylinder portion. 1. A main bearing for supporting a crankshaft of an internal combustion engine , comprising first and second half bearings which are combined into a cylindrical shape by butting respective circumferential end surfaces thereof , whereinthe first and second half bearings are configured so as to form together an axial groove extending through an entire length of the main bearing in an axial direction on an inner circumferential side of each butting portion when the first and second half bearings are combined,each half bearing has a main cylinder portion including a circumferential central portion of the half bearing, and crush relief portions which are formed throughout the entire lengths in the axial direction at both end portions of the half bearing in the circumferential direction in such a manner that a wall thickness of the crush relief portion becomes thinner than that of the main cylinder portion, and each crush relief portion extending from the circumferential end surface of the half bearing toward the circumferential central portion with a center angle not less than 3° but not more than 15°,a plurality of ...

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Номер записи: 58
22-02-2018 дата публикации

SLIDING COMPONENT AND METHOD

Номер: US20180051749A1
Автор: Beaurepaire Oliver, McEwan Kayleigh
Принадлежит:

A sliding component may include an overlay comprising a polymeric material and a metal oxide. The metal oxide may have a thermal conductivity of greater than about 1.5 WmK, and a Mohs hardness of between about 5 and about 7. The sliding component may be a sliding component for an engine, such as a bearing, a bearing shell, a bush, a thrust washer, a journal bearing or the like. 1. A sliding component comprising: a polymeric material; and', 'a metal oxide;', {'sup': −1', '−1, 'wherein the metal oxide has a thermal conductivity of greater than about 1.5 WmK, and a Mohs hardness of between about 5 and about 7.'}], 'an overlay, the overlay including2. A sliding component according to claim 1 , wherein the metal oxide includes one or more of cerium oxide claim 1 , tin oxide claim 1 , titanium dioxide claim 1 , and zirconium dioxide.3. A sliding component according to claim 1 , wherein the overlay further includes a dispersant.4. A sliding component according to claim 1 , wherein the metal oxide is dispersed throughout the overlay in the form of particles.5. A sliding component according to claim 1 , the metal oxide in the overlay includes metal oxide particles having an average particle size of between 0.5 μm and 10 μm.6. A sliding component according to claim 1 , wherein the metal oxide in the overlay is between about 0.5 wt % and about 8 wt % metal oxide.7. A sliding component according to claim 1 , wherein the polymeric material is a polyamide imide (PAI).8. A sliding component according to claim 1 , wherein the overlay has a thickness between about 3 μm and about 12 μm.9. A method of forming an overlay of a sliding component claim 1 , comprising:{'sup': −1', '−1, 'mixing a polymeric material with particles of a metal oxide having a thermal conductivity of greater than about 1.5 WmK, and a Mohs hardness of between about 5 and about 7, to form a dispersion;'}and depositing the dispersion onto a substrate.10. A method according to claim 9 , wherein the metal oxide ...

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Номер записи: 59
23-02-2017 дата публикации

SLIDING ELEMENT COMPRISING AT LEAST ONE COUPLING ELEMENT

Номер: US20170051782A1
Автор: Jones David, Leipprand Bredo
Принадлежит:

A sliding element, e.g., a sliding element for slidably supporting a rotatable shaft, may include a first sliding element component, a second sliding element component, and at least one coupling element. The at least one coupling element may be configured to be coupled to the first sliding element component and may be configured to be coupled to the second sliding element component to releasably couple the first sliding element component and the second sliding element component together. 1. A sliding element for slidably supporting a rotatable shaft , comprising:a first sliding element component;a second sliding element component; andat least one coupling element configured to be coupled to the first sliding element component and configured to be coupled to the second sliding element component to releasably couple the first sliding element component and the second sliding element component together.2. A sliding element according to claim 1 , wherein the first sliding element component includes at least one first engagement feature and the second sliding element component includes at least one second engagement feature claim 1 , the at least one first engagement feature engageable with the at least second engagement feature claim 1 , and wherein the at least one coupling element is configured to be coupled to the at least one first engagement feature and configured to be coupled to the at least one second engagement feature to releasably couple the first sliding element component and the second sliding element component together.3. A sliding element according to claim 1 , wherein the first sliding element component includes a first engagement feature structured as at least one tab and the second sliding element component includes a second engagement feature structured as at least one notch claim 1 , the at least one tab being engageable with the at least one notch claim 1 , and wherein the at least one coupling element is configured to be coupled to the at least one ...

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Номер записи: 60
23-02-2017 дата публикации

SLIDING ELEMENT

Номер: US20170051783A1
Автор: Adam Achim, Schluter Joachim
Принадлежит:

A sliding element with one substrate and at least one layer of a sliding layer material applied to the substrate is described. The sliding layer material can consist of a sliding coating with at least one cross-linkable bonding agent or at least one high-melting thermoplastic material or which consists of a material with a matrix of at least one high-melting thermoplastic material or at least one duroplastic material. This sliding layer material contains FeOwith a preferred proportion 0.1 to 15% by volume. 1. A sliding element with a substrate and with at least one layer of a sliding layer material applied to the substrate , wherein the sliding element is for fluid lubricated applications ,{'sub': 2', '3', '2', '3, 'wherein the sliding layer material is a sliding lacquer with at least one cross-linkable bonding agent consisting of polyamideimide (PAI), polyimide (PI), polybenzimidazole (PBI) and/or silicone resin or a sliding lacquer with at least one high-melting thermoplastic material consisting of polyarylates and/or polyether sulfone (PES), the sliding layer material contains FeO, and the proportion of FeOrelated to the total sliding layer material is 0.1 to 15% by volume,'}{'sub': 2', '3, 'or the sliding layer material is a material with a matrix of at least one high-melting thermoplastic material consisting of polyarylates, and/or polyether sulfone (PES) or a material with a matrix of at least one duroplastic material consisting of polyamideimide (PAI), polyimide (PI), polybenzimidazole (PBI) and/or silicone resin, and wherein the sliding layer material contains FeO'}2. The sliding element in accordance with claim 1 , wherein the sliding layer material is the sliding lacquer with the at least one bonding agent and the bonding agent is one that hardens by means of UV radiation.3. The sliding element in accordance with claim 1 , wherein the proportion of FeOrelated to the total sliding layer material is 0.5 to 8% by volume.4. The sliding element in accordance ...

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Номер записи: 61
15-05-2014 дата публикации

CRANKSHAFT BEARING CAP WITH OPTIMIZED PILLARS

Номер: US20140133791A1
Автор: Miazga Didier, Vincent Franck
Принадлежит: RENAULT S.A.S.

A crankshaft bearing cap in a shape of a half-cylinder of axis X coinciding with the axis of the crankshaft and including diametrically opposed attachment pillars, each column-shaped pillar including a substantially oval upper surface incorporating a bearing surface surrounding a borehole through which a fixing screw can pass and a bearing surface for a screw head, the surface surrounding the borehole, and each attachment pillar further including at least two lateral and vertical grooves over a portion of the height of the pillar, the grooves being situated outside a vertical bearing cylinder having a base equal to the bearing surface and outside of a volume defined by the transverse plane passing through the axes of the attachment holes and extending symmetrically in the X-direction over a length. 16-. (canceled)7. A crankshaft bearing cap which has a semi-cylindrical form , which has an axis X coinciding with the crankshaft axis , and comprising:diametrically opposed column-shaped fixing pillars, each column-shaped fixing pillar resting on a base portion and including a substantially oval upper surface, which upper surface integrates a support surface surrounding a through-hole, through which a fixing screw can pass, with a surface for supporting a screw head, the surface surrounding the through-hole,wherein each fixing pillar further including at least two vertical grooves on an outer lateral surface of the pillar, starting from a base of the pillar on the base portion and extending over a portion of a height of the pillar, the grooves being disposed outside a vertical support cylinder having a base equal to the support surface, and outside a volume defined by a transverse plane passing through axes of the fixing holes and extending symmetrically in the direction X over a length.8. The crankshaft bearing cap as claimed in claim 7 , wherein a profile of the grooves is symmetrical with respect to a transverse axis.9. The crankshaft bearing cap as claimed in claim 8 ...

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Номер записи: 62
03-03-2016 дата публикации

CRANKSHAFT FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20160061106A1
Автор: Hofbauer Peter, Ridley Iain, Tusinean Adrian, Verma Vinita
Принадлежит:

An internal combustion engine includes a crankshaft having a first web portion defining an inner opening and defining an undercut proximate the inner opening, a second web portion defining an inner opening and defining an undercut proximate the inner opening and an inner bearing portion that engages with the inner opening of the first web portion and with the inner opening of the second web portion. First and second pushrods each have a piston end and a crankshaft end. The crankshaft ends of the first and second pushrods each have a concave surface placed over different portions of the inner bearing portion between the first and second web portions, and each further have shoulders adjacent their respective concave surface that engage with the undercuts of the first and second web portions. 1. An internal combustion engine , comprising:a crankshaft having a first web portion defining an inner opening and defining an undercut proximate the inner opening, a second web portion defining an inner opening and defining an undercut proximate the inner opening and an inner bearing portion that engages with the inner opening of the first web portion and with the inner opening of the second web portion,a first pushrod having a piston end and a crankshaft end, anda second pushrod having a piston end and a crankshaft end, the crankshaft ends of the first and second pushrods each having a concave surface placed over different portions of the inner bearing portion between the first and second web portions, the crankshaft ends of the first and second pushrods each having shoulders adjacent the concave surface thereof that engages with the undercuts of the first and second web portions.2. The internal combustion engine of wherein each of the concave surfaces of the first and second pushrods extends circumferentially on the inner bearing portion over fewer than 170 degrees.3. The internal combustion engine of claim 1 , further comprising an inner claim 1 , cylindrical bearing located ...

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Номер записи: 63
02-03-2017 дата публикации

BEARING DEVICE FOR CRANKSHAFT OF INTERNAL COMBUSTION ENGINE

Номер: US20170058942A1
Автор: OZAWA Yoshihiro, Tanaka Shiho
Принадлежит:

The invention provides a bearing device, including a crankshaft, a pair of half bearings each having crush reliefs adjacent to both circumferential ends thereof, a bearing housing having a retaining hole, and one half thrust bearing arranged adjacent to the retaining hole. Each half thrust bearing is configured at least by a bearing alloy layer and a resin slide layer which constitutes a slide surface receiving an axial force of the crankshaft, and thrust reliefs adjacent to both circumferential end portions of the sliding surface so that its wall thickness is made thinner toward the circumferential end surface. A thrust relief length at an inner end portion of the thrust relief positioned on a rear side in the crankshaft rotational direction is formed to be larger than a thrust relief length at an inner end portion of the thrust relief positioned on a front side. 1. A bearing device for a crankshaft of an internal combustion engine , comprising:a crankshaft;a pair of half bearings for supporting a journal portion of the crankshaft, crush reliefs being formed on an inner circumferential surface of each half bearing and adjacent to both circumferential ends of the half bearing;a bearing housing having a retaining hole for retaining the pair of half bearings, the retaining hole being formed to penetrate through the bearing housing; andone half thrust bearing having a semi-annular shape that is arranged adjacent to the retaining hole on each axial end surface of the bearing housing, each half thrust bearing being configured by a bearing alloy layer and a resin slide layer, or by a back metal layer, a bearing alloy layer and a resin slide layer, the resin slide layer constituting a slide surface receiving an axial force of the crankshaft, whereinat least one of the half thrust bearings comprises thrust reliefs on a front side and a rear side in a crankshaft rotational direction, the thrust reliefs being arranged adjacent to both circumferential end portions of a sliding ...

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Номер записи: 64
02-03-2017 дата публикации

THRUST BEARING AND BEARING DEVICE FOR CRANKSHAFT OF INTERNAL COMBUSTION ENGINE

Номер: US20170058943A1
Автор: OZAWA Yoshihiro, Tanaka Shiho
Принадлежит:

The invention provides a thrust bearing, including a pair of half thrust bearings. Each half thrust bearing includes 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 constitutes a slide surface receiving an axial force of a crankshaft. Each half thrust bearing include thrust reliefs formed adjacent to both circumferential end portions of the sliding surface so that a wall thickness is thinner toward the circumferential end surface. A thrust relief length at an inner end portion of the thrust relief positioned on a rear side of one of the half thrust bearings in a rotational direction is larger than a thrust relief length at an inner end portion of the thrust relief positioned on a front side of the other of the half thrust bearing in the rotational direction. 1. A thrust bearing for receiving an axial force of a crankshaft of an internal combustion engine , comprising a pair of half thrust bearings each having a semi-annular shape , the pair of half thrust bearings forming an annular shape by butting respective circumferential end surfaces thereof , whereineach half thrust bearing comprises 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, whereineach half thrust bearing comprises thrust reliefs adjacent to both circumferential end portions of the sliding surface receiving the axial force, the thrust relief being formed so that a wall thickness of the half thrust bearing is made thinner toward the circumferential end surface, anda thrust relief length at an inner end portion of the thrust relief positioned on a rear side of one of the half thrust bearings in a crankshaft rotational direction is larger than a thrust relief length at an inner end portion of the thrust relief positioned on a front side of the other of the half thrust ...

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Номер записи: 65
20-02-2020 дата публикации

BEARING RETAINING MECHANISM

Номер: US20200056650A1
Автор: FURUTA Kazuya
Принадлежит:

One object is to reduce an effect of fastening of a restriction member, thereby to increase durability of a bearing retaining mechanism. The present invention relates to a bearing retaining mechanism. A bearing retaining mechanism according to an embodiment includes: a first member having an inner peripheral surface including an internal screw portion; a second member disposed on the inner peripheral surface; a rolling member configured to roll on a rolling surface formed on the second member; a crankshaft rotatably supported on the second member via the rolling member; and a restriction member supported on the first member and the second member, the restriction member including an external screw portion screwed on the internal screw portion of the first member. 1. A bearing retaining mechanism , comprising:a first member having an inner peripheral surface including an internal screw portion;a second member disposed on the inner peripheral surface;a rolling member configured to roll on a rolling surface formed on the second member;a crankshaft rotatably supported on the second member via the rolling member; anda restriction member supported on the first member and the second member, the restriction member including an external screw portion screwed on the internal screw portion of the first member.2. A bearing retaining mechanism , comprising:a first member having an inner peripheral surface including an internal screw portion;a second member disposed on the inner peripheral surface;a rolling member configured to roll on a rolling surface formed on the second member;a crankshaft rotatably supported on the second member via the rolling member; anda restriction member supported on the first member, the restriction member including an external screw portion screwed on the internal screw portion.3. The bearing retaining mechanism of claim 2 , wherein the second member is disposed so as to leave a gap between the second member and the restriction member.4. The bearing ...

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Номер записи: 66
28-02-2019 дата публикации

Low-back-clearance robot speed reducer

Номер: US20190061146A1
Автор: Jun Tan, Xianhong CAO
Принадлежит: Shenzhen Linglve CNC Equipment Co Ltd

Disclosed is a low-back-clearance robot speed reducer, comprising a wheel holder (16), a pin gear shell (1), a first cycloidal wheel (6), a roller pin (8), a second cycloidal wheel (11), a gland (2), an elastic member (9), a first cross-shaped slider (5), a second cross-shaped slider (13) and a crankshaft (10). The first cycloidal wheel (6) and the second cycloidal wheel (11) are in a phase relation of 180 degrees and have a multi-point engagement transmission relationship with the pin gear shell (1) and the roller pin (8). The first cross-shaped slider (5) and the second cross-shaped slider (13) form a double cross-shaped slider structure, in which the groove profile of the sliders is of a trapezoidal groove structure. A clearance is automatically axially compensated by the elastic member (9). The center of rotation of the crankshaft (10) is coaxial with the wheel holder (16) and the gland (2). The low-back-clearance robot speed reducer adopts a single crankshaft and cycloidal pin wheels for transmission drive, adopts the cross-shaped slider structure for outputting, belongs to one-stage speed-reduction transmission, and has the features of high efficiency and low back clearance.

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Номер записи: 67
08-03-2018 дата публикации

THRUST WASHER

Номер: US20180066698A1
Автор: Velverde Pereira Marcos Manoel
Принадлежит:

A thrust washer for an internal combustion engine may include a metal base having a contact surface and a slip surface. The contact surface may be in operative communication with an engine block. The slip surface may define at least one ramp section, at least one flat horizontal section, and at least one oil channel. The ramp section and the flat horizontal section may be connected via an asymptotic curved surface. The ramp section may be positioned asymptotically towards the flat horizontal section. 1. A thrust washer for an internal combustion engine comprising:a metal base having a contact surface and a slip surface, wherein the contact surface is in operative communication with an engine block,and the slip surface defines at least one ramp section, at least one flat horizontal section, and at least one oil channel, wherein the ramp section and the flat horizontal section are connected via an asymptotic curved surface, and wherein the ramp section is positioned asymptotically towards the flat horizontal section.2. An internal combustion engine comprising:at least one thrust washer including a metal base having a contact surface and a slip surface wherein the contact surface is in operative communication with the an engine block, and the slip surface, characterised in that the slip surface comprises a surface profile incorporating defines at least one ramp section, at least one flat horizontal section, and at least one oil channel, wherein the ramp section and the flat horizontal section are connected via an asymptotic curved surface, and wherein the ramp section is positioned asymptotically towards the flat horizontal section.3. The trust washer of claim 1 , wherein the contact surface defines a uniform flat profile without interruption.4. The thrust washer of claim 1 , wherein the thrust washer is a semi-circumferential shape.5. The thrust washer of claim 1 , wherein the thrust washer further comprises an inner circumferential surface and an outer ...

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Номер записи: 68
09-03-2017 дата публикации

BEARING AND SCROLL-TYPE FLUID MACHINE

Номер: US20170067508A1
Автор: Akizuki Masanori, Sawamoto Akira
Принадлежит:

Bearing has base material and coating layer Base material contains crank shaft on an inner circumferential surface side. The inner circumferential surface of base material is coated with coating layer The inner circumferential surface side of base material is coated with resin with thickness t, the resin is dried, and thereafter surface treatment is carried out such that multiple grooves C are provided on the surface of the resin so as to intersect with the direction of crank shaft whereby coating layer is formed. Peak portions B formed between adjacent grooves C come into contact with the outer circumferential surface of crank shaft to support crank shaft With bearing the thickness of peak portions B at the center in the direction of the crank shaft differs from the thickness of peak portions B at the end. 1. A bearing comprising:a tubular member for containing a shaft on an inner circumferential surface side; anda coating layer that coats the inner circumferential surface, a plurality of grooves being provided therein so as to intersect a direction of the shaft, and peak portions formed between the adjacent grooves coming into contact with an outer circumferential surface of the shaft so as to support the shaft,wherein a thickness from the inner circumferential surface to the peak portion at a center in the direction and a thickness from the inner circumferential surface to the peak portion at an end in the direction are different.2. The bearing according to claim 1 , wherein the thickness of the peak portion at the center in the direction is thicker than the thickness of the peak portion at the end in the direction.3. The bearing according to claim 1 , wherein the thickness of the peak portion at the center in the direction is thinner than the thickness of the peak portion at the end in the direction.4. The bearing according to claim 1 , wherein a maximum value for a difference between thinnest portions of the grooves is smaller compared to a maximum value of a ...

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Номер записи: 69
19-03-2015 дата публикации

BEARING ASSEMBLY FOR A CONNECTING ROD

Номер: US20150078692A1
Автор: Brown Scott, Schick Gary
Принадлежит: Koyo Bearings USA LLC

A bearing assembly including a connecting rod () with a first end () and a second end (), the second end () defining a first outer raceway () and a second outer raceway () with a thrust ring () therebetween, a crankshaft () defining a cylindrical inner raceway (), a first plurality of radial roller elements () disposed between the first outer raceway () and the inner raceway (), and a second plurality of radial roller elements () disposed between the second outer raceway () and the inner raceway (). An axial length of at least one of the first radial roller elements () is greater than an axial length of the first outer raceway () and the axial length of at least one of the second radial roller elements () is greater than an axial length of the second outer raceway (). 1. A bearing assembly comprising:a connecting rod with a first end and a second end, the first end defining a cylindrical aperture with a thrust ring depending radially inwardly therefrom such that the cylindrical aperture defines a first outer raceway and a second outer raceway on opposite sides of the thrust ring;a crankshaft defining a cylindrical inner raceway disposed between a pair of opposed inner walls;a first plurality of radial roller elements disposed between the first outer raceway and the inner raceway, each of the first radial roller elements having a first end face, an opposed second end face and defining an axial length therebetween; anda second plurality of radial roller elements disposed between the second outer raceway and the inner raceway, each of the second radial roller elements having a first end face, an opposed second end face and defining an axial length therebetween,wherein the axial length of at least one of the first plurality of radial roller elements is greater than an axial length of the first outer raceway and the axial length of at least one of the second plurality of radial roller elements is greater than an axial length of the second outer raceway.2. The bearing ...

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Номер записи: 70
07-03-2019 дата публикации

ONE-HAND OPERABLE END FITTING CONNECTOR ASSEMBLY

Номер: US20190072127A1
Автор: Boerschig Timothy J.
Принадлежит:

An end fitting connector assembly includes an end fitting having a first end, a second end and a through opening that extends in a direction that is transverse to an end fitting axis extending through the first and second ends and in which the through opening is defined by a peripheral wall. An elastically deformable race fitted into the through opening of the end fitting includes an exterior surface that engages the peripheral wall and an interior surface configured to provide snap fitting engagement with a spherical ball mount. At least one feature retaining the race within the end fitting creates an increased disassembly force, which may prevent disassembly without employing a release tool or release feature. The interior and exterior surfaces of the race can include spherical surfaces for conforming to the spherical ball and the peripheral wall of the end fitting. 1. An end fitting connector assembly comprising:an end fitting having a first end, an opposing second end and an axis passing through the first and second ends, the end fitting further having a through opening transversely arranged relative to the end fitting axis, the through opening defining a peripheral wall;an elastically deformable race fitted into the through opening of the end fitting and sized to have an exterior surface of the race engage the peripheral wall; andat least one feature retaining the race in a predetermined position within the through opening of the end fitting, the race having an inner surface configured to snapfittingly engage a ball mount.2. The end fitting connector assembly as recited in claim 1 , wherein each of the peripheral wall of the end fitting and the exterior surface of the race include grooves aligned with one another claim 1 , the grooves extending at least over an annular portion claim 1 , and in which the end fitting connector assembly further comprises a tool or release feature which is sized for insertion into a space defined between the aligned grooves.3. The ...

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Номер записи: 71
16-03-2017 дата публикации

MINIMIZING OIL LEAKAGE FROM ROCKING JOURNAL BEARINGS OF TWO-STROKE CYCLE ENGINES

Номер: US20170074315A1
Автор: KESSLER JOHN M., Klyza Clark A.
Принадлежит: Achates Power, Inc.

A rocking journal bearing is provided in a piston coupling mechanism of a two-stroke cycle engine. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load. 1. A rocking journal bearing for a two-stroke cycle engine , comprising:a bearing sleeve including a generally cylindrical bearing surface with a plurality of axially-spaced, eccentrically-disposed surface segments separated by circumferential oil grooves in the bearing surface for transporting oil in a circumferential direction of the bearing surface;a plurality of circumferentially-spaced, axial oil grooves in the bearing surface that run across the surface segments and intersect the circumferential oil grooves for transporting oil in an axial direction of the bearing surface;a wristpin including a plurality of axially-spaced, eccentrically-disposed journal segments engaged for rocking oscillation with corresponding surface segments; and,an oil-receiving space in the wristpin with oil outlet passages acting through the journal segments for delivering oil to the bearing surface; in which,there are no oil outlet passages in the wristpin that are aligned with the circumferential oil grooves in the bearing surface; and,at least one oil outlet passage in each journal segment is positioned to cross at least one axial oil groove during said rocking oscillation.2. A rocking journal bearing according to claim 1 , wherein:the plurality of journal segments includes a first journal segment formed in an intermediate portion of the wristpin, between two ...

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Номер записи: 72
05-03-2020 дата публикации

CYLINDER BLOCK ASSEMBLY

Номер: US20200072160A1
Автор: Fukutomi Ippei
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A cylinder block assembly includes a cylinder block having cylinders and a plurality of crank caps fixed to the cylinder block. The crank caps are arranged such that one of the crank caps is disposed on each of both sides of each of the cylinders in the alignment direction and among the plurality of crank caps arranged in line, each of a center crank cap located at a center position and two side crank caps respectively located at both ends has a hole or a groove in such a manner as to be more easily deformable than intermediate crank caps each of which is located between the center crank cap and one of the side crank caps when a load is received from the crankshaft. 1. A cylinder block assembly comprising:a cylinder block having an even number of four or more cylinders that are arranged in line; anda plurality of crank caps fixed to the cylinder block and aligned in line in an alignment direction of the cylinders;whereinthe plurality of crank caps and the cylinder block are provided with crank bearings;the crank bearings support a crankshaft such that the crankshaft is rotatable; 'among the plurality of crank caps arranged in line, each of a center crank cap located at a center position and two side crank caps respectively located at both ends has a hole or a groove in such a manner as to be more easily deformable than intermediate crank caps each of which is located between the center crank cap and one of the side crank caps when a load is received from the crankshaft.', 'the crank caps are arranged such that one of the crank caps is disposed on each of both sides of each of the cylinders in the alignment direction; and'}2. The cylinder block assembly according to claim 1 , wherein each of the center crank cap and the side crank caps has the hole claim 1 , and the hole extends through the crank cap.3. The cylinder block assembly according to claim 2 , wherein a plurality of the holes is provided in each of the center crank cap and the side crank caps.4. The ...

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Номер записи: 73
18-03-2021 дата публикации

Crankshaft and conrod assembly

Номер: US20210079839A1
Автор: Christer Odenmarck, Fredrik Strömstedt, Peter Petrov
Принадлежит: Volvo Car Corp

A crankshaft and conrod assembly (100) comprising a crankshaft (110) and a conrod (150), wherein the crankshaft (110) comprises at least one main journal (111) and one crankpin journal (112), where the crankshaft (110) is provided with an oil supply structure for supplying the crankpin journal (112) with lubrication oil and the conrod (150) with an oil pressure, wherein the oil supply structure comprises: an oil supply conduit (113) provided between the main journal and the crankpin journal (112), at least a first and a second oil supply opening (114, 115) provided at the crankpin journal (112), and a connection point (116) where the oil supply conduit (113) connects to the first and second oil supply opening (114, 115).

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Номер записи: 74
24-03-2016 дата публикации

Connecting rod cracking mandrel

Номер: US20160084296A1
Автор: Aldo Molina, Jeungsuck Chae, Leonardo Saucedo, Santiago Quinones
Принадлежит: MAHLE International GmbH

Exemplary connecting rod cracking mandrels and methods are disclosed. A mandrel may include a pair of jaw elements slidably mounted relative to one another and separated from each other. Each one of the jaw elements has a pair of opposing side portions and a center portion disposed between the opposing side portions. Each one of the side portions is configured to contact an inner diameter surface of a bore of a connecting rod when the jaws are moved away from one another within the bore so as to break the connecting rod. The center portion is configured to be spaced apart from the inner diameter surface of the bore when the jaws are moved away from one another within the bore, such that the opposing side portions contact the connecting rod bore.

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Номер записи: 75
24-03-2016 дата публикации

SLIDING ENGINE COMPONENT

Номер: US20160084308A1
Автор: Carey John, GORGES Roger, RATHOD Anil
Принадлежит:

A sliding engine component may include a sliding surface including a plastics polymer-based composite layer disposed on a substrate. The composite layer may include a matrix of plastics polymer-based material. The plastics polymer-based material may have 0.1 to 20 percent by volume of liquid-filled microcapsules distributed throughout the matrix, and incidental impurities. 1. A sliding engine component , comprising:a sliding surface including a plastics polymer-based composite layer disposed on a substrate, the composite layer including: 0.1 to 20% vol. of liquid-filled microcapsules; and', 'incidental impurities., 'a matrix of plastics polymer-based material having distributed throughout the matrix205. A sliding engine component according to claim 1 , wherein the matrix of plastics polymer-based material includes . to 5% vol. of liquid-filled microcapsules.3. A sliding engine component according to claim 1 , wherein the liquid-filled microcapsules have a mean average diameter of less than or equal to half of a thickness of the composite layer.4. A sliding engine component according to claim 1 , wherein the liquid-filled microcapsules have a mean average diameter of 0.5 μm to 10 μm.5. A sliding engine component according to claim 1 , wherein the composite layer has a thickness of 6 μm to 40 μm.6. A sliding engine component according to claim 1 , wherein the composite layer further includes a plurality of different sub-layers.7. A sliding engine component according to claim 6 , wherein the plurality of sub-layers include different concentrations by percent vol. of the liquid-filled microcapsules.8. A sliding engine component according to claim 6 , wherein the plurality of sub-layers include different concentrations by percent vol. of a metal particulate.9. A sliding engine component according to claim 6 , wherein the plurality of sub-layers include different liquid-filled microcapsules.10. A sliding engine component according to claim 1 , wherein the liquid of the ...

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Номер записи: 76
23-03-2017 дата публикации

ANTI-FRICTION LACQUER AND SLIDING BEARING LAMINATE COMPRISING SAME

Номер: US20170081522A1
Автор: Adam Achim, Schluter Joachim
Принадлежит:

The invention relates to an anti-friction coating () and an anti-friction coating composite () comprising at least 25 vol. % of a binder () and comprising fillers, which include zinc sulfide () and barium sulfate () and optionally additional fillers, wherein the volume ratio of barium sulfate () to zinc sulfide () is between 0.1 and 15.7, preferably between 0.8 and 4.88, and particularly preferably between 1.5 and 3.44. The anti-friction coating composite () comprises at least two anti-friction coatings () of different compositions. The invention further relates to sliding bearing layered composite materials comprising such coatings and use thereof in internal combustion engines. 1. An anti-friction coating comprising at least 25 vol. % of a binder and comprising fillers , which include zinc sulfide and barium sulfate , wherein the volume ratio of barium sulfate to zinc sulfide is between 0.1 and 15.7.2. The anti-friction coating according to claim 1 , wherein in total the zinc sulfide and the barium sulfate are contained in the total composition in a proportion of 2 to 35 vol. %.3. The anti-friction coating according to claim 28 , wherein in total the zinc sulfide claim 28 , the barium sulfate and the additional fillers are contained in the total composition in a proportion of at most 75 vol. %.4. The anti-friction coating according to claim 1 , wherein claim 1 , the zinc sulfide and the barium sulfate are present in powder form at a d50 value in the range of 0.1 μm to 1.0 μm.5. The anti-friction coating according to claim 1 , wherein the zinc sulfide and barium sulfate fraction is present in the form of lithopone.6. The anti-friction coating according to claim 1 , wherein the binder is selected from the group consisting of PAI claim 1 , PI claim 1 , epoxy resins claim 1 , PBI claim 1 , silicone resins and highly aromatic thermoplastics.7. The anti-friction coating according to claim 1 , wherein the coating has a thickness of 1 μm to 40 μm.8. The anti-friction ...

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Номер записи: 77
12-03-2020 дата публикации

HALF BEARING

Номер: US20200080593A1
Автор: KAJIKI Yuichiro, TAKATA Hiroki
Принадлежит:

A half bearing includes: a semi-cylindrical bearing body having an inner circumferential surface that slides against a counterpart shaft; and a first groove formed in the inner circumferential surface so as to extend in a circumferential direction of the inner circumferential surface. In a cross section that is parallel with the circumferential direction and passes through the first groove, of the bearing body, an angle θ satisfies 90°≤θ≤105°, where the angle θ is formed by: a line connecting the inner circumferential surface side end of a mating surface located on a downstream side in a rotational direction of the counterpart shaft with the center point of a circular arc constituting an outer circumferential surface; and a line connecting an end of the first groove in the circumferential direction, on the upstream side in the rotational direction of the counterpart shaft, with the center point. 1. A half bearing comprising:a bearing body that has a semi-cylindrical shape and has an inner circumferential surface that slides against a counterpart shaft;a first groove that is formed in the inner circumferential surface so as to extend in a circumferential direction of the inner circumferential surface, anda second groove that is formed in the inner circumferential surface so as to extend in the circumferential direction,wherein, in a cross section that is parallel with the circumferential direction and passes through the first groove, of the bearing body, an angle θ satisfies 90°≤θ≤105°, where the angle θ is formed by: a line that connects the inner circumferential surface side end of a mating surface that is located on a downstream side in a rotational direction of the counterpart shaft, with the center point of a circular arc that constitutes an outer circumferential surface; and a line that connects an end of the first groove in the circumferential direction, on the upstream side in the rotational direction of the counterpart shaft, with the center point,the first ...

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Номер записи: 78
29-03-2018 дата публикации

CONNECTING ROD AND MANUFACTURING METHOD THEREOF

Номер: US20180087562A1
Автор: HAYASHI Hiroshi, Iwasaki Yasuyuki, Matsuda Hideki
Принадлежит: HONDA MOTOR CO., LTD.

Provided is a connecting rod which can be manufactured without increasing the cost, and is provided with an effectively strengthened rod portion. The rod portion includes a pair of ribs () extending in parallel to each other in cross sectional view, and a web () connected between substantially vertically middle parts of the ribs. Each rib includes a rib root portion () located in a vertically central part thereof in cross sectional view, and a pair of rib tip portions () located at both vertical ends thereof, and each rib tip portion has a higher hardness than the web by 40 HV or more, and the rib root portion has a higher hardness than the web by 30 HV or more. 1. A connecting rod having a big end , a small end , and a rod portion connecting the big end to the small end and having a substantially H-shaped cross section ,wherein the rod portion includes a pair of ribs extending in parallel to each other in cross sectional view, and a web connected between substantially vertically middle parts of the ribs, andwherein each rib includes a rib root portion located in a vertically central part thereof in cross sectional view, and a pair of rib tip portions located at both vertical ends thereof, and each rib tip portion has a higher hardness than the web by 40 HV or more, and the rib root portion has a higher hardness than the web by 30 HV or more.2. The connecting rod according to claim 1 , wherein the hardness of the rib tip portions is preferably higher than the hardness of the rib root portion.3. A method of manufacturing a connecting rod having a big end claim 1 , a small end claim 1 , and a rod portion connecting the big end to the small end and having a substantially H-shaped cross section claim 1 , wherein the rod portion includes a pair of ribs extending in parallel to each other in cross sectional view claim 1 , and a web connected between substantially vertically middle parts of the ribs claim 1 , the method comprising;a first step of hot forging steel material ...

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Номер записи: 79
21-03-2019 дата публикации

BEARING COVER

Номер: US20190085892A1
Автор: DUMANSKI Christian, GIELESBERGER Franz-Josef, SCHAUER Markus
Принадлежит: MIBA SINTER AUSTRIA GMBH

The invention relates to a bearing cover () for a split bearing arrangement (), which comprises a bearing block () in addition to the bearing cover (), wherein the bearing cover () has a clamping surface (), which in an assembled state of the bearing arrangement () fits against a counter clamping surface () of the bearing block (), and wherein at least one projection () is formed on the clamping surface () and projects from the latter, which can be pushed into the counter clamping surface () of the bearing block (), and which has a round or round-convex cross-sectional form in a plan view of the clamping surface (). 13123361527665276. A bearing cover () for a split bearing arrangement () which comprises a bearing block () in addition to the bearing cover () , the bearing cover () having a clamping surface () which in the assembled state of the bearing arrangement () fits against a counter clamping surface () of the bearing block () , and at least one projection () being formed on the clamping surface () and projecting from the clamping surface () , which projection can be pushed into the counter clamping surface () of the bearing block () , wherein the at least one projection () has a round or round-convex cross-sectional form in a plan view of the clamping surface ().237. The bearing cover () as claimed in claim 1 , wherein the at least one projection () is designed to be in the form of a spherical segment or ellipsoid segment.336793. The bearing cover () as claimed in claim 1 , wherein a recess is formed in the clamping surface () claim 1 , wherein the projection () is arranged between said recess and a bearing mount surface () of the bearing cover ().4367. The bearing cover () as claimed in claim 1 , wherein a transition from the clamping surface () to the projection () is designed to be rounded.53713. The bearing cover () as claimed in claim 1 , wherein the projection () has a diameter () of at least 0.2 mm and a maximum of 4 mm.63715913137. The bearing cover () ...

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Номер записи: 80
21-03-2019 дата публикации

FLANGE BEARING WITH PARALLEL NOTCHES FACING EACH OTHER

Номер: US20190085896A1
Автор: BIRNBAUM RENE, DEUSSER STEPHAN, JOST BJORN TOBIAS
Принадлежит:

A radial-axial bearing element () with a sliding bearing shell () and at least one thrust washer (), wherein the sliding bearing shell () has at least, on one of the axial front sides () thereof, a plurality of notches () that are disposed spaced apart in the circumferential direction, and wherein the thrust washer () has a plurality of corresponding connection pieces () on the radially inner edge () thereof that are disposed spaced apart in the circumferential direction facing radially inward and that engage in the corresponding notches to form a positive connection with the sliding bearing shell (). The notches each have a contact surface () that faces away from the first center plane (A) of the radial-axial bearing element () The connection pieces each have a contact surface () that faces toward the first center plane (A) and that rest against each other to form a positive connection. At least two connection pieces () and at least two corresponding notches () are disposed therein in an outer region in the circumferential direction, wherein the contact surfaces () of the at least two connection pieces () and the at least two notches () are disposed parallel to each other. 1. A radial-axial bearing element with a sliding bearing shell and at least one thrust washer , wherein the sliding bearing shell has at least on one of the axial front sides thereof a plurality of notches that are disposed spaced apart in the circumferential direction , and wherein the thrust washer has a plurality of corresponding connection pieces on the radially inner edge thereof that are disposed spaced apart in the circumferential direction , radially inward facing , and that engage in the corresponding notches to form a positive-locking connection with the side bearing shell , wherein the notches each have a contact surface facing away from the first center plane of the radial-axial bearing element and wherein the connection pieces each have a contact surface facing toward the first ...

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Номер записи: 81
01-04-2021 дата публикации

HALF BEARING AND SLIDING BEARING

Номер: US20210095712A1
Автор: AMANO Seiji, GOTO Shiho, ITO Ryota
Принадлежит:

A semi-cylindrical half bearing for a sliding bearing includes at least one axial groove formed on its inner circumferential surface that includes a smooth groove surface formed back away from the inner circumferential surface toward a radially outer side of the half bearing. The groove surface forms a convex curve toward the radially outer side in a cross-section perpendicular to the axial direction of the half bearing, and forms a straight line extending in the axial direction in a cross-section parallel to the axial direction. The half bearing further includes a plurality of axial narrow grooves formed on the groove surface so as to be back away from the groove surface toward the radially outer side, that extend in the axial direction of the half bearing. 1. A half bearing having a semi-cylindrical shape and adapted to constitute a sliding bearing for supporting a crankshaft of an internal combustion engine , the half bearing comprising at least one axial groove formed on an inner circumferential surface thereof , the axial groove comprising a smooth groove surface formed back away from the inner circumferential surface toward a radially outer side of the half bearing , the groove surface defining a convex curve toward the radially outer side in a cross-section perpendicular to an axial direction of the half bearing and defining a straight line extending in the axial direction in a cross-section parallel to the axial direction , whereinthe half bearing further comprising a plurality of axial narrow grooves formed on the groove surface so as to be back away from the groove surface toward the radially outer side, the plurality of axial narrow grooves extending in the axial direction of the half bearing.2. The half bearing according to claim 1 , further comprising a plurality of circumferential narrow grooves formed on the groove surface so as to be back away from the groove surface toward the radially outer side claim 1 , the plurality of circumferential narrow ...

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Номер записи: 82
01-04-2021 дата публикации

HALF BEARING AND SLIDING BEARING

Номер: US20210095713A1
Автор: AMANO Seiji, GOTO Shiho, ITO Ryota
Принадлежит:

A semi-cylindrical half bearing for a sliding bearing includes at least one axial groove formed on its inner circumferential surface that includes a smooth groove surface formed back away from the inner circumferential surface toward a radially outer side. The half bearing further includes a plurality of axial narrow grooves and a plurality of circumferential narrow grooves that are formed further back away from the groove surface toward the radially outer side, and extend in circumferential and axial directions, respectively, so as to cross each other. A depth of the axial narrow groove from the groove surface is greater than a depth of the circumferential narrow groove from the groove surface, and a width of the axial narrow groove on the groove surface is greater than a width of the circumferential narrow groove on the groove surface. 1. A half bearing having a semi-cylindrical shape and adapted to constitute a sliding bearing for supporting a crankshaft of an internal combustion engine , the half bearing comprising at least one axial groove formed on an inner circumferential surface thereof , the axial groove comprising a smooth groove surface formed back away from the inner circumferential surface toward a radially outer side of the half bearing , the groove surface defining a convex curve toward the radially outer side in a cross-section perpendicular to an axial direction of the half bearing and defining a straight line extending in the axial direction in a cross-section parallel to the axial direction , whereinthe half bearing further comprises a plurality of circumferential narrow grooves and a plurality of axial narrow grooves that are formed on the groove surface so as to be back away from the groove surface toward the radially outer side, the plurality of circumferential narrow grooves and the plurality of axial narrow grooves extending in a circumferential direction and the axial direction of the half bearing, respectively, so as to cross each other, ...

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Номер записи: 83
14-04-2016 дата публикации

SLIDING BEARING

Номер: US20160102707A1
Автор: ASHIHARA Katsuhiro, HONDA Akihiro, KAJIKI Yuichiro, Murakami Motoichi, TAKATA Hiroki
Принадлежит:

Provided is a slide bearing with which friction can be reduced and the total amount of effluent oil can be reduced. In the slide bearing in which the halved members made by dividing the cylinder in two in the direction parallel to the axial direction are disposed vertically, the narrow grooves are provided at an end of the lower halved member in the circumferential direction from a mating surface on a downstream side of a rotation direction to a predetermined bearing angle and peripheral edge parts are provided outside the narrow grooves in an axial direction. 1. A slide bearing in which halved members made by dividing a cylinder in two in a direction parallel to the axial direction are disposed vertically ,wherein narrow grooves are provided at an end of the lower halved member in the circumferential direction from a mating surface on a downstream side of a rotation direction to a predetermined bearing angle,wherein border parts is provided outside the narrow grooves in an axial direction, andwherein the oil grooves which are narrower than the narrow grooves are disposed at the bottom surface of the narrow grooves and the surface of the border parts of the slide bearing which face to the crankshaft.23-. (canceled)4. The slide bearing according to wherein the oil grooves are configured to the parallel direction to the rotation direction.5. The slide bearing according to wherein the oil grooves are configured to the orthogonal direction to the rotation direction.6. The slide bearing according to wherein the oil grooves are configured to the cross direction to the rotation direction and the oil grooves are slanted by the predetermined angle.7. A slide bearing in which halved members made by dividing a cylinder in two in a direction parallel to the axial direction are disposed vertically claim 1 ,wherein narrow grooves are provided at an end of the lower halved member in the circumferential direction from a mating surface on a downstream side of a rotation direction to ...

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Номер записи: 84
23-04-2015 дата публикации

Method and Device for the Fracture Separation of a Workpiece

Номер: US20150108195A1
Автор: Drinkmann Matthias, Gruhler Siegfried, Kutz Helmut, Schöllhammer Horst
Принадлежит: Mauser-Werke Oberndorf Maschinenbau GmbH

A method and a device for fracture separation of a workpiece and a workpiece fracture-separated by the method in accordance with the invention or with the device in accordance with the invention are disclosed. According to the invention, at a distance from a fracture separating notch at least one fracture directing notch is formed, which plays a part in determining the path followed by the fracture separating plane. The device for the fracture separation of the workpiece has a laser unit for forming the fracture separating notch and a mechanical machining unit for forming the fracture directing notch. 1. A method for fracture separation of a workpiece along a bearing eye , wherein fracture separating notches arranged diametrically to one another are formed in a circumferential wall by way of laser energy , preferably by way of a fiber laser , which fracture separating notches approximately define a fracture separating plane , a crack mandrel being used so as to apply a fracture separating force to the bearing , characterized in that at a distance from the fracture separating notches at least one fracture directing notch is formed that lies in the fracture separating plane , wherein the fracture separating notches are formed circumferentially , and wherein at least one of the fracture separating notch and the fracture directing notch is formed with approximately wavy or zigzag-shaped sections.2. The method according to claim 1 , wherein the fracture directing notch is formed by machining with a cutting tool or electrochemically or by transforming.3. The method according to claim 1 , wherein the workpiece in the area of the fracture separating plane has at least one opening at a circumferential wall of which said fracture directing notch is formed.4. The method according to claim 1 , wherein a laser unit or the workpiece is arranged rotatably relative to the respective other element.5. The method according to claim 1 , wherein the workpiece is partially heated or ...

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Номер записи: 85
13-04-2017 дата публикации

PISTON MACHINE

Номер: US20170102025A1
Автор: Johansson Lars Thomas
Принадлежит:

A piston machine with a rotating shaft (), 1. A piston machine including:a crankshaft having a crankshaft rod journal;a connecting rod connected to a piston in a first end and to the crankshaft rod journal in a second end; andat least two circular bearings that are radially stacked and rotatable relative each other;wherein the two bearings are arranged between the second end and the crankshaft rod journal,wherein the two bearings are roller bearings or plain bearings.2. The piston machine according to comprising;an engine block, wherein said crankshaft comprises a crankshaft main journal, wherein the two bearings are arranged between the engine block and the crankshaft main journal.3. The piston machine according to comprising;a camshaft, andan engine cylinder head, wherein said camshaft comprises a camshaft bearing journal, wherein the two bearings are arranged between the engine cylinder head and the camshaft bearing journal.4. The piston machine according to any of the preceding claims claim 1 , wherein said two bearings are split bearings.5. The piston machine according to any of the preceding claims claim 1 , wherein at least one of said two bearings comprises an internal or external oil groove.6. The piston machine according to any of the preceding claims claim 1 , wherein at least one of said two bearings comprises at least a guide groove arranged to transfer oil.7. The piston machine according to and claim 1 , wherein at least one of said plain split bearings has claim 1 , in a cross section claim 1 , the shape of an H.8. The piston machine according to and claim 1 , wherein at least one of said plain split bearings has claim 1 , in a cross section claim 1 , the shape of a filled rectangle.9. The piston machine according to and claim 1 , wherein at least one of said plain split bearings has claim 1 , in a cross section claim 1 , the shape of an U.10. The piston machine according to and claim 1 , wherein at least one of said split bearings comprises first and ...

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Номер записи: 86
20-04-2017 дата публикации

Hydrodynamic axial plain bearing

Номер: US20170108041A1
Автор: Kai-Martin Mayer
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for a thrust bearing. In one example, a system may include a thrust bearing located adjacent to a crankshaft and a connecting rod.

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Номер записи: 87
28-04-2016 дата публикации

Method of fabricating a force transfer part having a lug made of composite material, and a part obtained by such a method

Номер: US20160114884A1
Автор: Mathieu Renaud, Patrick Dunleavy, Robin Mandel
Принадлежит: Safran SA

The invention provides a method of fabricating a force transfer part ( 100 ) including at least one lug ( 108 ) made of composite material that is to receive a pin for making a pivot connection with another part, the method comprising making a fiber preform for a main body of the part and making a preform for a reinforcing ring out of discontinuous long fibers, making the reinforcing ring preform to match the dimensions of at least one bore in the preform of the main body, inserting the reinforcing ring preform in the bore of the preform of the main body, and polymerizing the reinforcing ring and main body preforms in injection tooling. The invention also provides a force transfer part obtained by such a method.

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Номер записи: 88
27-04-2017 дата публикации

Pivot Bearing for Two Connecting Rods

Номер: US20170114827A1
Автор: Bruestle Claus
Принадлежит:

A pivot bearing suitable for two connecting rods in at least one piston of an internal combustion engine having two crankshafts, includes radial bearing regions that are provided with bolt boreholes and are disposed on either side of a center longitudinal plane of the piston and delimit connecting rod ends, forming an intermediate space. The bearing regions are designed as cylinder bodies having a crucible-like cross-section, of which each cylinder body has a base wall and a bearing ring jacket. The base walls of the two cylinder bodies extend at a distance from each other, and the bearing ring jackets surrounding the base walls are guided away from the base walls in opposite directions. One or more connecting supports run between the base walls. The bearing ring jackets cooperate with the piston boreholes in a rotatably movable manner. The base walls are connected to bearing bushings which are oriented in the axial direction of the pivot bearing and into which the bolt boreholes are incorporated. The pivot bearing is made of a material that brings about a targeted low-weight construction of the pivot bearing, while offering high strength and low wear. 1. A pivot bearing for two connecting rods in at least one piston of an internal combustion engine equipped with two crankshafts driven via the piston and the two connecting rods , the pivot bearing being accomodatable in piston bore holes of the piston , the pivot bearing comprising:radial bearing regions that are provided with bolt bore holes and that are disposed on either side of a center longitudinal axis of the piston, the radial bearing regions delimiting the connecting rod ends and forming an intermediate space, and the bolt bores holes being configured to mount connecting rod bolts for ends of the two connecting rods, whereinthe radial bearing regions are configured as cylinder bodies having a crucible-shaped cross-section,each cylinder body has a base wall and a bearing ring jacket,the base walls of the two ...

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Номер записи: 89
18-04-2019 дата публикации

CYLINDER BLOCK AND INTERNAL COMBUSTION ENGINE PROVIDED WITH SAME

Номер: US20190112999A1
Автор: Kitamura Shinji, KUSANO Masamichi, TOKURA Koichi
Принадлежит:

A cylinder block includes a support wall part that rotatably supports a crank shaft. The support wall part has a fitting recess part to which a bearing cap can be fitted. In each of the left and right corner parts where a bottom surface and a fitting surface of the fitting recess part intersect, a notch groove is formed that extends in the array direction of cylinder bores and has a substantially arc-shaped cross section when cut by the virtual plane along the extension direction thereof. As a result, stress having a greater value as the location becomes closer to the center part in the extension direction of the notch groove can be substantially uniform in the extension direction of said notch groove, and it is possible to effectively mitigate the stress concentration. 1. A cylinder block comprising a bearing body having a fitting recess part to which a bearing cap can be fitted , and a bearing part formed in the bottom surface of said fitting recess part , and configured so as to axially support a crank shaft between the bearing body and the bearing cap in a rotatable fashion , whereinthe cylinder block is configured such that:the fitting recess part has a bottom surface corner part which is abutted by a corner part of the bearing cap;in the bottom surface corner part, formed is a recess groove having a substantially arched shape when seen from the axial direction of the crank shaft and extending in the axial direction; andthe recess groove has different depths, in the extension direction of said recess groove, in accordance with the magnitude of the stress acting on said recess groove.2. The cylinder block according to claim 1 , whereinthe recess groove is formed so as to be deepest at the substantially center part thereof in the extension direction.3. The cylinder block according to claim 2 , whereinthe recess groove is formed such that the depth thereof gradually increases from both end parts in the extension direction towards the substantially center part in ...

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Номер записи: 90
18-04-2019 дата публикации

ROLLING BEARING

Номер: US20190113070A1
Автор: ISAYAMA Shuichi, MORI Shigeyuki, Nakamura Shinya, OMAE Toshihiro, TANI Hiroyuki, UMEDA Akihiko
Принадлежит:

A rolling bearing includes an outer ring supported by a fixed body, an inner ring which supports a rotating shaft, and rolling elements between an inner groove of the outer ring and an outer groove of the inner ring, wherein a curvature radius R of at least the inner groove of the outer ring is in a range of 2r×0.53≤R≤2r×0.55 in relation to a radius r of one of the rolling elements. 1. A rolling bearing , comprising:an outer ring supported by a fixed body;an inner ring which supports a rotating shaft; androlling elements between an inner groove of the outer ring and an outer groove of the inner ring,wherein:a curvature radius R of at least the inner groove of the outer ring is set is in a range of 2r×0.53≤R≤2r×0.55 in relation to a radius r of one of the rolling elements at an anti-load side of the rolling bearing.2. A rolling bearing , comprising:an outer ring supported by a fixed body;an inner ring which supports a rotating shaft; androlling elements between an inner groove of the outer ring and an outer groove of the inner ring,wherein:a curvature radius R of at least the inner groove of the outer ring is set is along a circumference of a circle with a radius corresponding to a first diameter of the rolling elements at an anti-load side of the rolling bearing; andthe first diameter is a curvature radius configured to extend from a radially outermost portion of the rolling elements.3. A rolling bearing , comprising:an outer ring supported by a fixed body;an inner ring which supports a rotating shaft; androlling elements between an inner groove of the outer ring and an outer groove of the inner ring,wherein:a swing angle range of the rotation shaft is from −30 degrees to 30 degrees, and the rolling elements at an anti-load side are formed of an elastic member.4. A rolling bearing , comprising:an outer ring supported by a fixed body;an inner ring which supports a rotating shaft; andspherical rolling elements between an inner groove of the outer ring and an outer ...

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Номер записи: 91
05-05-2016 дата публикации

Engine crankshaft

Номер: US20160123379A1
Автор: Rickey L. Williams
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A crankshaft in an engine is provided. The crankshaft includes only two outer bearing journals configured to attach to two outer crankshaft bearings, only a single inner bearing journal positioned axially between the two outer bearing journals configured to attach to an inner crankshaft bearing, an unsupported section positioned axially between the inner bearing journal and one of the outer bearing journals, and only three rod journals each configured to attach to a separate piston rod.

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Номер записи: 92
05-05-2016 дата публикации

CAGE FOR A CRANKSHAFT BEARING OR CONNECTING-ROD BEARING OF AN INTERNAL COMBUSTION ENGINE OR OF A COMPRESSOR

Номер: US20160123392A1
Автор: Steblau Dieter
Принадлежит: AKTIEBOLAGET SKF

A cage for a crankshaft bearing or a connecting-rod bearing of an internal combustion engine or for a compressor has a plurality of receiving pockets for guiding bearing rolling elements and has an axial width. The cage includes at least first and second cage segments, each cage segment having a segment axial width equal to the axial width of the cage and having a first end circumferentially spaced from a second end, the first cage segment first end being connected to the second cage segment second end by an interference fit and the first cage segment second end being connected to the second cage segment first end by an interference fit. 1. A cage for a crankshaft bearing or a connecting-rod bearing of an internal combustion engine or for a compressor , the cage comprising a plurality of receiving pockets for guiding bearing rolling elements and having an axial width ,wherein, the cage includes at least first and second cage segments, each cage segment having a segment axial width equal to the axial width of the cage and having a first end circumferentially spaced from a second end, the first cage segment first end being connected to the second cage segment second end by an interference fit, and the first cage segment second end being connected to the second cage segment first end by an interference fit.2. The cage according to claim 1 , wherein the at least first and second cage segments comprise exactly two cage segments.3. The cage according to claim 1 , wherein the interference-fit connection is a clip connection.4. The cage according to claim 1 , wherein the first cage segment first end includes at least one projection and the second cage segment second end includes at least complementary recess claim 1 , the projection being received in the recess.5. The cage according to claim 4 , wherein the first cage segment first end includes a recess circumferentially spaced from the at least one projection.6. The cage according to claim 1 , wherein the first cage ...

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Номер записи: 93
03-05-2018 дата публикации

SLIDING BEARING MANUFACTURING METHOD AND SLIDING BEARING

Номер: US20180119739A1
Автор: Seki Daisuke, Takagi Yuji
Принадлежит:

It is possible to provide a sliding bearing that can obtain a friction reduction effect, and can suppress the total amount of outflow oil. A manufacturing method of the present invention is a method of manufacturing a sliding bearing () in which half members () are arranged in a vertical arrangement, the half members () being obtained by dividing a cylinder into two parts along a line parallel with the axial direction and having a metal layer () and a lining layer () provided on the inner circumferential surface of the metal layer (), the manufacturing method comprising: a groove configuration step (S) (first step) of providing a groove () in an axial end portion of the half member () on the lower side, the groove () extending in the circumferential direction on a downstream side in a rotation direction, wherein in the groove configuration step (S), the depth (d) of the groove () is set larger than the result of subtracting the tolerance (al) of the thickness of the lining layer () from the thickness (h) of the lining layer (). 1. (canceled)2. (canceled)3. (canceled)4. A sliding bearing comprising:a metal layer having a half-cylindrical shape;a lining layer formed on an inner surface of the metal layer, the lining layer having a sliding surface that slides on a shaft;a groove formed on the lining layer, the groove extending towards a circumferential direction of the shaft, whereinan upstream side end of the groove is located at a half of downstream side of the sliding surface, anda depth of the groove is greater than a thickness of the lining layer.5. The sliding bearing according to claim 4 , whereinthe groove is formed from a position that is apart from an edge of a mating face toward a center in a circumferential direction of the sliding surface.6. A sliding bearing according to claim 5 , whereinan outside wall in an axial direction, of the groove is lower than an inside wall of the groove.7. A method for manufacturing a sliding bearing claim 5 , the method ...

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Номер записи: 94
03-05-2018 дата публикации

Bearing material, bearing and method

Номер: US20180119740A1
Автор: Kayleigh McEWAN
Принадлежит: Mahle Engine Systems UK Ltd, MAHLE International GmbH

A bearing material may include a polyamide/imide plastics polymer material having an amine content including a fluorinated diamine and a non-fluorinated diamine.

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Номер записи: 95
14-05-2015 дата публикации

JIG FOR SUPPLYING SEMI-CIRCULAR MEMBER

Номер: US20150128396A1
Автор: Motomura Takefumi
Принадлежит:

A protruding portion is formed on a rear side of a side plate, namely a side surface forming guide passage. The protruding portion is intended to prevent a thrust metal from being put to the guide passage with the left and right ends being in the wrong position. Accordingly, a height of the protruding portion is smaller than a depth of the oil ditch of the thrust metal, the width of the protruding portion is smaller than the width of the oil ditch. Also, regarding to the formation position of the protruding portion, when the thrust metal is truly set to guide passage, the center of the protruding portion approximately accords with the center of the oil ditch of the thrust metal. 1. A jig for supplying a semi-circular member into a storing ditch , said semi-circular member having a groove that functions as an oil ditch on a one side surface ,the jig is provided with a guide passage that drops the semi-circular member into the storing ditch, an inclined surface being formed on one bottom end of right or left side of the guide passage, the inclined surface causes the failing semi-circular member to jump and be raised diagonally.2. (canceled)3. The jig for supplying a semi-circular member according to claim 1 , wherein the jig is provided with a side plate to right and left side of a main body claim 1 , the guide passage is formed between the main body and the side plate claim 1 , and the protruding portion is formed in the inboard surface of the side plate.4. The jig for supplying a semi-circular member according to claim 1 , wherein a top plate is attached to the main body claim 1 , and an aperture and the protruding portion of the guide passage are formed to the top plate. The present invention relates to a jig for supplying a semi-circular member such as a thrust metal (thrust bearing) or division washer.As shown in , the right and left sides of a journal portion of a crank shaft are provided with a counterweight ,, this journal portion is put in to a bulk portion ...

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Номер записи: 96
25-08-2022 дата публикации

Single slot loader slot bearing

Номер: US20220268310A1
Автор: Jackson Sarneski-Hayes, Jonathan Spiegel, Stephen Sorgenti
Принадлежит: Roller Bearing Company of America Inc

A loader slot bearing includes a housing and a truncated ball. The housing has an interior area that is defined by an inner bearing surface which has a concave contour defining a circumference. A single slot extends axially partway into the inner bearing surface and has a slot arc section area extending axially inward. The slot arc section area has a first circumferential slot-end, a second circumferential slot-end, and a slot arc length measured between the first circumferential slot-end and the second circumferential slot-end. A ratio of the slot arc length to the circumference of the interior area is about 0.20 to 0.35. The truncated ball has a convex exterior surface. The truncated ball is positioned in the slot and rotated so that the truncated ball is rotatably retained by the inner bearing surface. The truncated ball is angularly misalignable relative to the annular housing.

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Номер записи: 97
12-05-2016 дата публикации

Main Bearing Cap With Locating Feature

Номер: US20160131192A1
Автор: Draxler Gary R., Mandel Joel H.
Принадлежит:

A bearing cap in which each foot includes a protrusion formed thereon that is generally linear having opposing sides in which each of these opposing sides support a plurality of crush ribs. 1. In a bearing cap of the type which is bolted to a bearing support structure so as to define a bearing bore between said cap and said structure and in which bolt holes for securing said cap to said structure extend through feet of said cap and into said structure , said cap having at least two of said feet , one of said feet on each side of said bore with at least one bolt hole of the bolt holes extending through each one of said feet , wherein said cap is sintered powder metal , wherein the improvement comprises:each of said feet include a protrusion formed thereon, wherein each protrusion is generally linear having opposing sides in which each of these opposing sides support a plurality of crush ribs.2. The bearing cap as in claim 1 , wherein each protrusion supporting the plurality of crush ribs has a length less than the distance between two longitudinal side faces of the bearing cap3. The bearing cap as in claim 2 , wherein each protrusion extends in a direction generally perpendicular to the two longitudinal side faces of the bearing cap.4. The bearing cap as in claim 3 , wherein the plurality of ribs extend in a direction generally perpendicular to a surface of each protrusion on which they are formed.5. The bearing cap as in claim 1 , wherein each protrusion is disposed between the at least one bolt hole and a side of each foot.6. The bearing cap as in claim 5 , wherein the side is a lateral side of each foot.7. The bearing cap as in claim 1 , wherein the plurality of ribs are plastically deformable along with the bearing support structure during assembly of the bearing cap to the bearing support structure.8. The bearing cap as in claim 1 , wherein each protrusion is formed proximate a lateral side of each foot.9. The bearing cap as in claim 8 , wherein any point along ...

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Номер записи: 98
10-05-2018 дата публикации

INTERNAL COMBUSTION ENGINE BEARING AND METHOD OF MANUFACTURING INTERNAL COMBUSTION ENGINE BEARING

Номер: US20180128307A1
Автор: UEDA Tatehito
Принадлежит:

A semicircular tube-shaped bearing has a bearing main body that is formed from a resin, has a semicircular tube shape, and has an inner circumferential surface that slides over an opposing shaft and an outer circumferential surface that comes into contact with a housing. The semicircular tube-shaped bearing may have a structure in which multiple resin layers are laminated in a direction of radiation from the axial center. In this case, the bearing main body has a first layer that includes the outer circumferential surface and a second layer that includes the inner circumferential surface. The first layer is formed from a thermosetting resin. The first layer may include fiber reinforced resin in which fibers are mixed with a thermosetting resin. The second layer is formed from a thermoplastic resin. The second layer may include fiber reinforced resin in which fibers are mixed with a thermoplastic resin. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. An internal combustion engine bearing comprising:a bearing main body that is formed from a resin, has a semicircular tube shape, and has an inner circumferential surface that is to slide over an opposing shaft and an outer circumferential surface that is to come into contact with a housing, wherein a first layer that is formed from a thermosetting resin and includes the outer circumferential surface; and', 'a second layer that is formed from a thermoplastic resin and includes the inner circumferential surface., 'the bearing main body includes'}6. The internal combustion engine bearing according to claim 5 , whereina thickness of the first layer is greater than or equal to 80% of a thickness of the bearing main body.7. The internal combustion engine bearing according to claim 5 , whereinthe bearing main body has an oil passage between the first layer and the second layer.8. A method of manufacturing an internal combustion engine bearing claim 5 , comprising:producing a slurry by stirring a material that contains a ...

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Номер записи: 99
10-05-2018 дата публикации

INTERNAL COMBUSTION ENGINE SLIDING MEMBER

Номер: US20180128308A1
Автор: UEDA Tatehito
Принадлежит:

A crank washer is a ring-shaped flat plate with a protruding portion on the lower side, and is divided into upper and lower washers at a center plane. Two crank washers sandwich a main bearing therebetween so that the surfaces thereof on the side opposite to sliding surfaces face each other. The lower washer has the same configuration as the upper washer, with the exception of having a rotation preventer. The rotation preventer engages a rotation prevention groove in the housing and prevents the lower washer from rotating with the crankshaft. Mating surface reliefs prevent mating surfaces of the lower and upper washers from contacting a shaft during attachment. The sliding surface slides over the crankshaft, receives a thrust load, and supports the crankshaft. The crank washer is entirely made of a resin. 1. An internal combustion engine sliding member comprising:a bearing main body that is formed from a resin, has a semicircular tube shape or a circular tube shape, and has an inner circumferential surface that is to slide over an opposing shaft and an outer circumferential surface that is to come into contact with a housing; anda first washer that is formed from a resin and has a half ring shape, is provided at one end of the bearing main body in an axial direction, and has a first thrust surface that receives a load in the axial direction.2. The internal combustion engine sliding member according to claim 1 , wherein the first washer is formed integrally with the bearing main body.3. The internal combustion engine sliding member according to claim 1 , wherein the first washer is fixed to the bearing main body.4. The internal combustion engine sliding member according to claim 1 , wherein the first washer is relatively rotatably attached to the bearing main body.5. The internal combustion engine sliding member according to claim 1 , comprising a second washer that is provided at another end of the bearing main body and has a second thrust surface that receives a ...

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Номер записи: 100