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公开(公告)号：EP2162649A2
公开(公告)日：2010-03-17
申请号：EP07785824.9
申请日：2007-06-16
发明人： ARAUJO, Juliano, Avelar , MARQUES, Gisela, Ablas , SARABANDA, Jose, Valentim, Lima , BANFIELD, Robert, Richard
CPC分类号： F16J9/26 , C23C14/0036 , C23C14/0641 , Y10T428/265
摘要： The invention relates to a piston ring for internal combustion engines, the piston ring comprises a steel or cast iron base material with a coating of chromium nitride deposited by a physical vapor deposition process on a sliding surface of the piston ring, wherein the coating is composed of a columnar crystal structure of CrN with the following features: (a) an oxygen content in solid solution of 0.5 to 2.5 wt %; (b) a content of uniformly dispersed micro-pores of less than 10 % in volume of the coating; and (c) an X-ray diffraction intensity ratio of (111) planes to (200) planes parallel to the surface in the range of 0.80 to 1.20.
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公开(公告)号：EP2162649B1
公开(公告)日：2012-05-16
申请号：EP07785824.9
申请日：2007-06-16
发明人： ARAUJO, Juliano, Avelar , MARQUES, Gisela, Ablas , SARABANDA, Jose, Valentim, Lima , BANFIELD, Robert, Richard
CPC分类号： F16J9/26 , C23C14/0036 , C23C14/0641 , Y10T428/265
摘要： The invention relates to a piston ring for internal combustion engines, the piston ring comprises a steel or cast iron base material with a coating of chromium nitride deposited by a physical vapor deposition process on a sliding surface of the piston ring, wherein the coating is composed of a columnar crystal structure of CrN with the following features: (a) an oxygen content in solid solution of 0.5 to 2.5 wt %; (b) a content of uniformly dispersed micro-pores of less than 10 % in volume of the coating; and (c) an X-ray diffraction intensity ratio of (111) planes to (200) planes parallel to the surface in the range of 0.80 to 1.20.
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公开(公告)号：EP2094998A1
公开(公告)日：2009-09-02
申请号：EP07859022.1
申请日：2007-11-29
IPC分类号： F16J9/20
CPC分类号： F16J9/20 , F16J9/14 , Y10T29/49282
摘要： The present invention relates to a piston ring (10), particularly a compression ring, for an internal combustion engine, comprising a ring-shaped body (11) having a ring joint (13) formed by butt ends (14a, 14b), said ring-shaped body (11) further having a ring contact face (12) along its perimeter, for contacting a cylinder wall in operation. Ac¬ cording to the invention, said ring contact face (12) has a barrel-shaped profile, said barrel-shaped profile having in any of its cross-sections an area of maximum curva¬ ture, whose radius of curvature increases in the direction of the butt ends (14a, 14b).
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公开(公告)号：EP1904767A2
公开(公告)日：2008-04-02
申请号：EP06779945.2
申请日：2006-07-14
发明人： FERRARESE, André , UEHARA, Samantha
IPC分类号： F16J9/06
摘要： An oil-control ring for an internal combustion engine, to be mounted between the sidewalls of a respective groove (10) of a piston (P) and comprising two ring segments (20) and an annular expander (30) disposed between the two ring segments (20) and presenting a support body (31) defining a seating plane for each ring segment (20) , said ring further comprising: at least one expander portion (40) axially projecting from the support body (31) of the expander (30) , beyond at least one of the seating planes of a ring segment (20); and at least one superficial irregularity (50) provided in at least one of the ring segments (20) and which is dimensioned to be contained in the thickness of the respective ring segment (20) and to interfere with at least one expander portion (40), in order to rotatively lock said ring segment (20) in relation to the expander (30) .
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5.发明公开THERMAL MANAGEMENT SYSTEM FOR THE FEEDING OF FUEL IN INTERNAL COMBUSTION ENGINES 审中-公开WÄRMEREGELUNGSSYSTEMFÜRDIE ZUFUHR VON KRAFTSTOFF BEI BRENNKRAFTMASCHINEN
公开(公告)号：EP2959153A1
公开(公告)日：2015-12-30
申请号：EP14713024.9
申请日：2014-02-25
CPC分类号： F02D19/0605 , F02D19/08 , F02D19/084 , F02M31/14 , F02M43/04 , Y02T10/126 , Y02T10/36
摘要： The system is applied to an engine (M) having an injection system, a fuel feed line and a cooling system (CS), by means of a cooling fluid which circulates, through hot fluid ducts and cold fluid ducts, through the engine (M) and through a heat exchanger. The feed line has a first segment, connected to the injection system and provided with a first valve, to be closed when the fuel temperature is below a maximum value, and open when the fuel temperature reaches the maximum value. The feed line also has a second segment derived from the first and absorbing thermal energy from the hot fluid duct or from the combustion gases and provided with a second valve which remains open while the fuel temperature is lower than the maximum value, and which is closed when said temperature reaches the maximum value.
摘要翻译： 该系统通过冷却流体施加到具有喷射系统（10），燃料供给管线（30）和冷却系统（CS）的发动机（M），所述冷却流体通过热流体管道（61a，61b）循环 ）和冷流体管道（62a，62b），通过发动机（M）并通过热交换器（60）。 进料管线（30）包括：第一段（31），其连接到喷射系统（10）并且设置有第一阀（33），当燃料温度低于最大值时关闭，并且当第 燃油温度达到最大值; 以及第二段（32），其从第一和来自热流体管道（61a，61b）吸收的热能或来自燃烧气体的第二段（32），并且设置有第二阀（34），其在燃料温度低于 最大值，当所述温度达到最大值时关闭。
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公开(公告)号：EP2162561A1
公开(公告)日：2010-03-17
申请号：EP07764682.6
申请日：2007-06-16
CPC分类号： C23C30/00 , C23C8/28 , C23C8/34 , C23C8/52 , C23C8/58 , C23C28/324 , C23C28/34 , C23C28/347 , C23C28/36 , F16J9/26 , Y10T428/25
摘要： The present invention relates to a piston ring for an internal combustion engine, the piston ring comprises a sulphide rich compound layer forming a surface layer, said sulphide rich compound layer comprising an iron nitride matrix with iron sulphide (FeS) inclusions embedded in said matrix, said sulphide rich compound layer having a sulphur content of 1 to 4 wt% S and a nitrogen content of 10 to 20 wt% N.
摘要翻译： 本发明涉及一种用于内燃机的活塞环，活塞环包括形成表面层的富含硫化物的化合物层，所述富含硫化物的化合物层包括具有嵌入所述基质中的硫化铁（FeS）夹杂物的氮化铁基质， 所述富含硫化物的化合物层具有1至4重量％的硫含量和10至20重量％的氮含量。
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公开(公告)号：EP1904767B1
公开(公告)日：2009-11-25
申请号：EP06779945.2
申请日：2006-07-14
发明人： FERRARESE, André , UEHARA, Samantha
IPC分类号： F16J9/06
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公开(公告)号：EP1963721A1
公开(公告)日：2008-09-03
申请号：EP06755934.4
申请日：2006-06-02
IPC分类号： F16J9/26
CPC分类号： C23C14/0641 , C23C14/025 , F16J9/26 , Y10T428/12535 , Y10T428/12611 , Y10T428/12937 , Y10T428/12944
摘要： A piston ring for internal combustion engines with a coating of Chromium nitride (CrN) deposited by a physical vapor deposition process on a sliding surface with a typical crystal structure of CrN phase, has a high wear resistance and superior resistance to the generation of micro-cracks and consequent localized loss of pieces of the coating. The coating is a columnar crystalline coating of CrN having a dispersed pore content lower than 10% in volume and ratio of intensities, measured through x-ray diffraction, between the crystal planes (111) and planes (200) , parallel to the surface, in the range of 0.40 to 0.70. This crystalline distribution is obtained through an oxygen content impregnated in the CrN coating between 1.0% in weight to 7.0% in weight. The Vickers hardness of the film ranges from 1,500 to 2,200 HV.
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公开(公告)号：EP1448918B1
公开(公告)日：2006-12-06
申请号：EP02764411.1
申请日：2002-08-13
发明人： TOMANIK, Antonio Eduardo Meirelles , ZABEU, Clayton, Barcelos , ALMEIDA, Germano, Moreira , LOPES, José Roberto
CPC分类号： F16J9/20 , F02F3/00 , F05C2251/042 , F16J9/22
摘要： A piston for an internal combustion engine of the type presenting circumferential grooves (10), each groove (10) housing a respective piston ring (20), at least one first upper groove (10) presenting a profile having upper and lower lateral walls (11, 12) radially outwardly inclined towards the piston top by an angle of inclination such as to compensate, at least partially, the deformations to which the piston is submitted when in a critical higher load operational condition, in order to maximize the distribution of the seating contact between at least one of the upper and lower lateral walls (21, 22) of the piston ring (20) and an adjacent lateral wall (11, 12) of the groove (10), as well as to minimize the wear that determines the useful life of the groove (10).
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公开(公告)号：EP1448918A1
公开(公告)日：2004-08-25
申请号：EP02764411.1
申请日：2002-08-13
发明人： TOMANIK, Antonio Eduardo Meirelles , ZABEU, Clayton, Barcelos , ALMEIDA, Germano, Moreira , LOPES, José Roberto
CPC分类号： F16J9/20 , F02F3/00 , F05C2251/042 , F16J9/22
摘要： A piston for an internal combustion engine of the type presenting circumferential grooves (10), each groove (10) housing a respective piston ring (20), at least one first upper groove (10) presenting a profile having upper and lower lateral walls (11, 12) radially outwardly inclined towards the piston top by an angle of inclination such as to compensate, at least partially, the deformations to which the piston is submitted when in a critical higher load operational condition, in order to maximize the distribution of the seating contact between at least one of the upper and lower lateral walls (21, 22) of the piston ring (20) and an adjacent lateral wall (11, 12) of the groove (10), as well as to minimize the wear that determines the useful life of the groove (10).
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